CN112000243A - Display panel and display device - Google Patents
Display panel and display deviceDownload PDFInfo
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- CN112000243A CN112000243ACN202010796105.8ACN202010796105ACN112000243ACN 112000243 ACN112000243 ACN 112000243ACN 202010796105 ACN202010796105 ACN 202010796105ACN 112000243 ACN112000243 ACN 112000243A
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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Abstract
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
The display panel has the advantages of thin body, electricity saving, no radiation and the like, and is widely applied. Conventional Display panels mainly include Liquid Crystal Display (LCD) panels and Organic Light Emitting Diode (OLED) Display panels.
The Touch display Panel has become a main human-computer interaction means for personal mobile communication devices and integrated information terminals such as tablet computers, smart phones, super notebook computers and the like due to advantages such as easy operability, intuition and flexibility, and as an important type of the Touch display Panel, an In Cell Touch Panel (In Cell Touch Panel) can reduce power consumption of the display device and make the display device thinner by integrating Touch electrodes on an array substrate of the display device.
Meanwhile, in order to improve the user experience, the high screen ratio is gradually becoming an important development direction of the display device. The screen occupation ratio can be understood as the proportion of the visible area of the display device to the total area of the plane where the display device is located, in order to improve the screen occupation ratio, the occupied area of a frame area of the display device is generally reduced, so that the occupied area of a non-display area is reduced, a camera shooting area can be arranged in the range surrounded by the display area, and modules such as a front camera, a front flash lamp and a receiver which are originally arranged in the frame area are arranged in the camera shooting area.
There are two ways for a display panel in the prior art to set a camera area for a display area when a touch electrode is set:
1) cutting the touch electrode of the shooting area to avoid the shooting area, wherein the shooting area is not provided with the touch electrode, so that the shooting area cannot realize touch control, and actually, the display panel is not a comprehensive touch screen;
2) the image pickup area touch electrodes are not cut, but in the prior art, the touch electrodes are generally in even number rows, such as 16 rows or 18 rows, and if the touch electrodes are not cut, the image pickup area corresponding to the touch electrodes is not enough to be disposed at the middle position of the display panel. The district of making a video recording does not set up the outward appearance that can make display panel at the intermediate position and is not pleasing to the eye, and the angle that needs adjustment to make a video recording when shooing moreover makes the image that obtains be located the picture in the middle of, is unfavorable for the user and uses experience.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a display panel and a display device that can realize full touch and can set an imaging area at an intermediate position.
Disclosure of Invention
In view of the above, the present invention provides a display panel, including a first display area, a second display area at least partially surrounding the first display area, and a non-display area at least partially surrounding the second display area, wherein the first display area has a first state in which the first display area is used for displaying a picture and a second state in which the first display area is used for transmitting external light;
the display panel comprises a center line extending along a first direction, the first display area and the second display area are arranged along the center line in an axial symmetry mode in a second direction, and the second direction is intersected with the first direction;
the display panel comprises a plurality of touch electrode rows, each touch electrode row comprises a plurality of touch electrodes, and the touch electrodes comprise a first touch electrode and a second touch electrode;
the first touch electrode is located in the first display area, and the second touch electrode is located in the second display area.
On the other hand, the invention also provides a display device, which comprises the display panel and an image sensing unit, wherein the image sensing unit is positioned on one side of the display panel, which is far away from the light-emitting surface, and the orthographic projection of the image sensing unit on the plane where the display panel is positioned in the first display area.
Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:
the display panel comprises a first display area, a second display area and a non-display area, wherein the second display area is at least partially arranged around the first display area, the non-display area at least partially surrounds the second display area, the first display area has a first state and a second state, the first display area is used for displaying pictures in the first state, and the first display area is used for transmitting external light in the second state; the display panel comprises a center line extending along a first direction, and the first display area and the second display area are axially symmetrically arranged along the center line in a second direction; the display panel comprises a plurality of touch electrode rows, each touch electrode row comprises a plurality of touch electrodes, and the touch electrodes comprise a first touch electrode and a second touch electrode; the first touch electrode is located in the first display area, and the second touch electrode is located in the second display area. In the invention, the first touch electrode is arranged in the first display area, and in the prior art, the touch electrode in the camera area is cut off instead of being arranged in the corresponding camera area, so that the touch function of the camera area cannot be realized; certainly, the first display area can be switched between the first state and the second state, so that the first display area can also display, and compared with the situation that the corresponding shooting area in the prior art cannot display, the first display area can also display, so that the screen occupation ratio is favorably improved, and a full screen is realized; in addition, the first display area is axially symmetrically arranged along the central line, the first touch electrodes in the first display area are arranged in the middle of the touch electrode row where the first touch electrodes are located, the second touch electrodes of the touch electrode row in the second direction are arranged on two sides of the first touch electrodes and are arranged towards two sides by taking the first touch electrodes as the center, and therefore the problem that the camera shooting area cannot be located in the middle due to even-number row arrangement of the touch electrodes is solved.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic plan view of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic plan view illustrating a display panel according to another embodiment of the present invention;
FIG. 3 is a schematic plan view of a display panel according to another embodiment of the present invention;
FIG. 4 is a schematic plan view illustrating a display panel according to another embodiment of the present invention;
FIG. 5 is a schematic diagram of a planar structure of another display panel according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a planar structure of another display panel according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a planar structure of another display panel according to an embodiment of the present invention;
fig. 8 is a cross-sectional view of a display panel provided in the present invention;
fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 10 is a cross-sectional view taken along the direction N-N' in fig. 9.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The invention provides a display panel and a display device, aiming at solving the problems existing in the prior art when a touch electrode is arranged. Embodiments of the display panel and the display device provided by the present invention will be described in detail below.
Referring to fig. 1, fig. 1 is a schematic plan view illustrating a display panel according to an embodiment of the present invention, where thedisplay panel 000 in fig. 1 includes a first display area AA1, a second display area AA2 at least partially surrounding the first display area AA1, and a non-display area NA at least partially surrounding the second display area AA2, where the first display area AA1 has a first state and a second state, where the first display area AA1 is used for displaying a picture in the first state, and where the first display area AA1 is used for transmitting external light;
thedisplay panel 000 includes acentral line 1 extending along a first direction Y, and the first display area AA1 and the second display area AA2 are both axially symmetrically disposed along thecentral line 1 in a second direction X, which intersects the first direction Y;
thedisplay panel 000 includes a plurality oftouch electrode rows 2, eachtouch electrode row 2 includes a plurality of touch electrodes TP including a first touch electrode TP1 and a secondtouch electrode TP 2;
the first touch electrode TP1 is located in the first display area AA1, and the second touch electrode TP2 is located in the seconddisplay area AA 2. In the present invention, the first touch electrode TP1 is disposed in the firstdisplay area AA 1. In the prior art, the touch electrode of the camera area is cut off to avoid the camera area, and at this time, the camera area is not provided with the touch electrode, so that the camera area cannot realize touch control, and actually, the display panel at this time is not a comprehensive touch screen; in the invention, the first touch electrode TP1 is also correspondingly disposed in the first display area AA1 (i.e., the image pickup area in the prior art), so that the first display area AA1 has a touch function, thereby solving the problem that the image pickup area in the prior art cannot realize full touch without disposing a touch electrode, and realizing full touch.
In the display panel provided in this embodiment, the display area AA is divided into at least two areas, which are a first display area AA1 and a seconddisplay area AA 2. The first display area AA1 and the second display area AA2 each have a function of displaying image information, for example, the first display area AA1 and the second display area AA2 may include a plurality of pixels (not shown in the drawings); the first display area AA1 has a first state in which the first display area AA1 is used for displaying pictures, and a second state in which the first display area AA1 is used for transmitting external light, and the transmitted external light in the second state is optionally used for taking pictures, and the like, and is not limited in particular. Certainly, the non-display NA has no display function, and can be used for disposing structures such as circuit traces and electronic elements. Compared with the condition that the image pickup area corresponding to the prior art cannot display, the first display area AA1 of the invention can also display, which is beneficial to improving the screen ratio and realizing a full screen.
Thedisplay panel 000 of the embodiment includes a first display area AA1, a second display area AA2 at least partially surrounding the first display area AA1, and a non-display area NA at least partially surrounding the second display area AA2, where fig. 1 only shows that the second display area AA2 partially surrounds the first display area AA1, and the non-display area NA completely surrounds the second display area AA1, but the second display area AA1 may also completely surround the first display area AA1, which is not limited herein.
It is understood that the first display area AA1 and the second display area AA2 are both axisymmetric figures, and have thecentral line 1 as the symmetry axis, so that the first display area AA1 is ensured to be located at the middle of the display panel, where the middle is the position where the first display area AA1 is located at the middle in the second direction X. The first display area AA1 is located at the middle position, the first touch electrodes TP1 in the first display area AA1 are disposed at the middle position of thetouch electrode row 2 where the first touch electrodes are located, the second touch electrodes TP2 of thetouch electrode row 2 are located at two sides of the first touch electrodes TP1 in the second direction, and are arranged from the center of the first touch electrodes TP1 to two sides, so that the problem that the camera area cannot be located at the middle position due to even-numbered row arrangement of the touch electrodes is solved, the first display area a1 is located at the middle position, the appearance of the display panel is more attractive, the camera angle of the camera area does not need to be adjusted during photographing, and the user experience feeling is better. .
Thedisplay panel 000 includes a plurality oftouch electrode rows 2, eachtouch electrode row 2 includes a plurality of touch electrodes TP including a first touch electrode TP1 and a second touch electrode TP2, and the touch electrodes TP are used for sensing touch operations. Of course, the touch lines are not shown in fig. 1, and the touch lines are disposed corresponding to the touch electrodes TP, and the touch lines are used for transmitting electrical signals to the correspondingly disposed touch electrodes TP. Of course, the number oftouch electrode rows 2 in fig. 1 is not representative of the number in an actual display panel product, and is only schematically illustrated here.
Alternatively, in fig. 1, only the touch electrode TP is illustrated as a rectangle. It is understood that, in the display panel provided in the embodiments of the present invention, the touch electrode may be in a diamond shape, a circular shape, an oval shape, a star shape, or other irregular shapes, which is not limited in this embodiment.
Optionally, the touch electrodes TP are arranged in an array along the first direction Y and the second direction X.
The display panel in this embodiment can realize touch and display functions, and when touch occurs, the display panel can sense touch operation. When displaying, the display panel performs a display function for displaying image information. The touch and the display may be performed separately, and the touch and the display may be alternately performed within a frame time.
Fig. 1 only shows that therow 1touch electrode row 2 has 1 first touch electrode TP1, the first touch electrode TP1 is located in the first display area AA1, the sum of the numbers of the first touch electrodes TP1 and the second touch electrodes TP2 in therow 1touch electrode row 2 is not equal to the sum of the numbers of the second touch electrodes TP2 in other touch electrode rows, the second touch electrodes TP2 in therow 1touch electrode row 2 are staggered with the second touch electrodes TP2 in other touch electrode rows, the areas of the second touch electrodes TP2 in therow 1touch electrode row 2 and the second touch electrodes TP2 in other touch electrode rows are not equal, and of course, other arrangements may be provided for the first touch electrodes TP1 and the second touch electrode TP2 in therow 1 touch electrode row as long as the first display area AA1 provided with the first touch electrodes TP1 is located at the middle position of the display panel.
Compared with the prior art, the display panel of the embodiment has at least the following beneficial effects:
in the display panel 000 of the present invention, the first touch electrode TP1 is disposed in the first display area AA1, in the prior art, the touch electrode TP1 is disposed in the first display area AA1, so that the first display area AA1 has a touch function, and thus, a full touch is realized; certainly, the first display area AA1 can be switched between the first state and the second state, so that the first display area AA1 displays in the first state, and compared with the situation that the corresponding shooting area in the prior art cannot display, the first display area AA1 of the invention can also display, which is beneficial to improving the screen occupation ratio and realizing a full-screen; in addition, in the invention, the first display area AA1 is axially symmetrically arranged along the center line 1 of the display panel 000, the first touch electrodes TP1 in the first display area AA1 are arranged in the middle of the touch electrode row 2 where the first touch electrodes are located, the second touch electrodes TP2 of the touch electrode row 2 in the second direction are located on two sides of the first touch electrodes TP1 and are arranged from the center of the first touch electrodes TP1 to two sides, so that the problem that the middle position of the camera cannot be located due to even-numbered row arrangement of the touch electrodes is solved, the first display area a1 is located in the middle, the appearance of the display panel is more attractive, the camera does not need to adjust the camera angle during photographing, and the user experience is better.
In some alternative embodiments, referring to fig. 2, fig. 2 is a schematic plan view of a display panel according to another embodiment of the present invention. In at least onetouch electrode row 2 in fig. 2, the second touch electrode TP2 includes a plurality of firstsub-touch electrodes 41 and a plurality of secondsub-touch electrodes 42, the first touch electrode TP1 includes a thirdsub-touch electrode 31 and a fourthsub-touch electrode 32 that are insulated from each other, the thirdsub-touch electrode 31 is adjacent to one of the firstsub-touch electrodes 41 and electrically connected to form a third touch electrode 5, and the fourthsub-touch electrode 32 is adjacent to the other firstsub-touch electrode 41 and electrically connected to form a fourth touch electrode 6.
It is understood that, in therow 1touch electrode row 2 in fig. 2, the second touch electrode TP2 has two firstsub-touch electrodes 41 and 6 secondsub-touch electrodes 42, the first touch electrode TP1 includes a thirdsub-touch electrode 31 and a fourthsub-touch electrode 32, the thirdsub-touch electrode 31 is electrically connected to its adjacent firstsub-touch electrode 41 to form a third touch electrode 5, the fourthsub-touch electrode 32 is electrically connected to its adjacent firstsub-touch electrode 41 to form a fourth touch electrode 6, optionally, the thirdsub-touch electrode 31 and the firstsub-touch electrode 41 may be connected by a metal connection portion, one end of the metal connection portion is electrically connected to the thirdsub-touch electrode 31, and the other end is electrically connected to the firstsub-touch electrode 41, of course, the metal connection portion may be disposed on the same layer with the thirdsub-touch electrode 31 and the firstsub-touch electrode 41, and similarly, the fourthsub-touch electrode 32 and its adjacent firstsub-touch electrode 41 may also be electrically connected by a metal connection portion, of course, the electrical connection may be made in the form of a bridge spanning through different layers, and is not particularly limited herein.
It should be noted that the areas of the secondsub-touch electrodes 42 in fig. 2 and the second touch electrodes TP2 in the othertouch electrode rows 2 are equal, and certainly may not be equal, in this case, the secondsub-touch electrodes 42 in thetouch electrode row 1 and the second touch electrodes TP2 in the other touch electrode rows may be arranged in a staggered manner.
In this embodiment, the first touch electrode TP1 in the first display area AA1 is divided into two parts, that is, the thirdsub-touch electrode 31 and the fourthsub-touch electrode 32, and the thirdsub-touch electrode 31 and the fourthsub-touch electrode 32 and the adjacent firstsub-touch electrode 41 form a complete touch electrode, so that the touch electrode TP in the first display area AA1 can be realized, and the first display area AA1 can also be positioned in the middle of the display panel.
In some alternative embodiments, with continued reference to fig. 2, the areas of the third touch electrode 5, the fourth touch electrode 6 and the secondsub-touch electrode 42 are all equal.
The second touch electrode TP2 of the touch electrode row 1 in fig. 2 has a first sub-touch electrode 41 and a second sub-touch electrode 42, the first touch electrode TP1 of the first display area AA1 includes a third sub-touch electrode 31 and a fourth sub-touch electrode 32, namely, the first dummy electrode TP1 of the first display area AA1 is divided into two parts, one part of the third sub-touch electrode 31 is electrically connected to the adjacent first sub-touch electrode 41 to form a third touch electrode 5, the fourth sub-touch electrode 32 is electrically connected to the adjacent first sub-touch electrode 41 to form a fourth touch electrode 6, when the area of the third touch electrode 5 and the area of the fourth touch electrode 6 are equal to the area of the second sub-touch electrode 42, that is, in the second direction X, the area TP of the touch electrode in the touch electrode row 2 is equal, so that in the second direction X, the touch electrodes TP of the touch electrode row 2 are uniformly distributed, so that the touch accuracy can be improved, and the touch electrodes are distributed more uniformly, so that only the design of the first display area AA1 and the touch electrodes nearby is changed, and the original design of the rest areas is maintained, and the touch electrode array is convenient to manufacture.
In some alternative embodiments, referring to fig. 3, fig. 3 is a schematic plan view of a display panel according to another embodiment of the present invention. Thedisplay panel 000 in fig. 3 further includes a plurality oftouch lines 7, thetouch lines 7 extend along the first direction Y, the thirdsub-touch electrode 31 and the firstsub-touch electrode 41 constituting the third touch electrode 5 share thesame touch line 7, and the fourthsub-touch electrode 32 and the firstsub-touch electrode 41 constituting the fourth touch electrode 6 share thesame touch line 7.
Thetouch lines 7 are disposed corresponding to the touch electrodes TP, and thetouch lines 7 are used for transmitting electrical signals to the correspondingly disposed touch electrodes TP. Thetouch lines 7 may be electrically connected to the touch electrodes in the form of via holes.
As can be seen from fig. 3, only one touch line is required to be disposed on the third touch electrode 5 formed by the thirdsub-touch electrode 31 and the firstsub-touch electrode 41, and only one touch line is required to be disposed on the fourth touch electrode 6 formed by the fourthsub-touch electrode 41 and the firstsub-touch electrode 41. In this embodiment, after the first touch electrode TP1 is divided into the thirdsub-touch electrode 31 and the secondsub-touch electrode 32, the third touch electrode TP1 and the firstsub-touch electrode 41 respectively form the third touch electrode 5 and the fourth touch electrode 6, but thetouch line 7 does not need to be separately added, and the first sub-touch electrode TP1 and the firstsub-touch electrode 41 share onetouch line 7, so that the transmission of touch signals can be ensured, the number of thetouch lines 7 can also be reduced, and the complexity of the manufacturing process of the display panel can be reduced.
In some alternative embodiments, referring to fig. 4, fig. 4 is a schematic plan view of a display panel according to another embodiment of the present invention. In fig. 4, the area of the thirdsub-touch electrode 31, the area of the fourthsub-touch electrode 32, and the area of the firstsub-touch electrode 41 are all equal to each other, and equal to half of the area of the secondsub-touch electrode 42.
In this embodiment, the first touch electrode TP1 is divided into two parts with equal areas: the thirdsub-touch electrode 31 and the secondsub-touch electrode 32 are also opposite to the area of the firstsub-touch electrode 41, and in therow 1touch electrode row 2, the thirdsub-touch electrode 31, the secondsub-touch electrode 32 and the firstsub-touch electrode 41 are all equal to half of the secondsub-touch electrode 42, so that the touch electrodes are easier to manufacture. In addition, it can be ensured that the areas of the third touch electrode 5 and the fourth touch electrode 6 are equal to the area of the secondsub-touch electrode 42, that is, the areas of the touch electrodes TP in thetouch electrode row 2 are equal, so that the touch electrodes TP in thetouch electrode row 2 are uniformly distributed in the second direction X, which can improve the touch accuracy and the distribution is uniform.
In some alternative embodiments, with continued reference to fig. 1, the first display area AA1 includes a camera area C, the camera area C is disposed in one-to-one correspondence with the first touch electrode TP1, and the first touch electrode TP1 is insulated from the secondtouch electrode TP 2.
It should be noted that fig. 1 only shows that there is one image pickup area C in the first display area AA1, of course, a plurality of image pickup areas C may be disposed in the first display area AA1, and of course, a greater number of image pickup areas C may be disposed in the first display area AA1, as long as the first touch electrodes TP1 and the image pickup areas C are disposed in a one-to-one correspondence, which can achieve the image pickup function and the touch function.
The imaging region C can be used for imaging. In this case, it is necessary to provide an image pickup device, such as a camera, on the light incident surface side of thedisplay panel 000.
The first touch electrode TP1 and the second touch electrode TP2 in this embodiment are insulated from each other, that is, they are not electrically connected to each other, and when the first touch electrode TP1 and the second touch electrode TP2 are disposed, they may be disposed according to the width in the second direction X, and as the arrangement manner in fig. 1, the areas of the first touch electrode TP1 and the second touch electrode TP2 are equal, and the second touch electrode TP2 in thetouch electrode row 1 and the second touch electrode TP2 in thetouch electrode row 2 are staggered, so that the touch electrodes can be ensured to be covered over theentire display panel 000, and full touch can be achieved.
In the embodiment, the first display area AA1 has the image pickup area C corresponding to the first touch electrodes TP1 one by one, that is, the image pickup area C has touch electrodes, so that the image pickup function and the touch function can be realized.
In some alternative embodiments, referring to fig. 5, fig. 5 is a schematic plan view of a display panel according to another embodiment of the present invention. Thedisplay panel 000 of fig. 5 further includes a plurality oftouch lines 7, thetouch lines 7 extend along the first direction Y, and the first touch electrode TP1 and the second touch electrode TP2 are electrically connected todifferent touch lines 7.
In fig. 5, the area of the second touch electrode TP2 in the firsttouch electrode row 12 is different from that of the second touch electrode TP2 in the other touch electrode rows, the second touch electrode TP2 in the firsttouch electrode row 1 is staggered from that of the second touch electrode TP2 in the other touch electrode rows, each touch electrode TP is connected to atouch line 7, and thetouch line 7 transmits an electrical signal to the touch electrode TP. The first touch electrode TP1 and the second touch electrode TP2 are connected todifferent touch lines 7, that is, electrical signals are transmitted to the first touch electrode TP1 and the second touch electrode TP2 through thedifferent touch lines 7.
It can be understood that an In Cell Touch Panel (In Cell Touch Panel) integrates Touch electrodes on an array substrate of a display device, and at this time, In order to make a display Panel thinner and lighter, an original common electrode In the display Panel is generally multiplexed, the Touch electrode TP uses a time division multiplexing technology, the display Panel performs a display function to display image information, and the Touch line provides a common voltage signal to the Touch electrode TP, thereby implementing the display function. When touching, the touch line provides a touch emission signal to the touch electrode TP and receives a touch sensing signal, thereby implementing a touch function. When the display panel is displaying, the second display area AA1 is used for displaying, and at this time, the first display area AA1 may be in the second state, that is, the first display area AA1 is used for transmitting external light, so that a signal required to be transmitted to the touch electrode TP is different from a signal in the first state at this time, and certainly, the signal is also different from the display state in the second display area AA2, and in order to be able to transmit a signal to the first touch electrode TP1 in the first display area AA1 alone, an electrical signal is transmitted to the first touch electrode TP1 and the second touch electrode TP2 throughdifferent touch lines 7, so that the same electrical signal as that transmitted to the second touch electrode TP2 is avoided, and thus, independent control cannot be achieved.
In some alternative embodiments, with continued reference to fig. 1, in the second direction X, the second touch electrode TP2 in thetouch electrode row 2 where the first touch electrode TP1 is located is staggered with the second touch electrode TP2 in the othertouch electrode rows 2.
The number of thetouch electrode rows 2 where the first touch electrodes TP1 are located is odd, that is, compared with other touch electrode rows, one first touch electrode TP1 is added in thetouch electrode row 1, so that the second touch electrodes TP2 disposed in the remaining positions of the row need to be staggered with the second touch electrodes TP2 in the othertouch electrode rows 2, which can satisfy that the touch electrodes TP are disposed at all positions of thedisplay panel 000, thereby achieving full-scale touch and improving touch accuracy.
In some alternative embodiments, referring to fig. 6, fig. 6 is a schematic plan view of a display panel according to another embodiment of the present invention. The number of the camera shooting areas C is at least two;
the first touch electrode TP1 includes a plurality of mutually insulated fifthsub-touch electrodes 81, and the fifthsub-touch electrodes 81 are disposed in one-to-one correspondence with the imaging regions C.
Fig. 6 only shows that the number of the imaging areas C is two, and in this case, the number of the fifthsub-touch electrodes 81 in the first touch electrode TP1 is two, and the imaging areas C are in one-to-one correspondence with the imaging areas C, and the first display area AA1 can implement an imaging function and a touch function.
Optionally, the area of the fifthsub-touch electrode 81 may be smaller than the area of the second touch electrode TP2 in thetouch electrode row 1, and certainly, the area of the fifthsub-touch electrode 81 may also be larger than the area of the second touch electrode TP2 in thetouch electrode row 1, and the area of the fifthsub-touch electrode 81 is adjusted according to the size of the area of the imaging area C. The second touch electrode TP2 in thetouch electrode row 2 where the first touch electrode TP1 is located is staggered with the second touch electrode TP2 in the othertouch electrode row 2, so that the touch electrodes TP are disposed at all positions of thedisplay panel 000, thereby achieving full touch and improving touch precision.
In some optional embodiments, referring to fig. 7, fig. 7 is a schematic plan view illustrating a display panel according to another embodiment of the present invention, in which thedisplay panel 000 in fig. 7 further includes a plurality oftouch lines 7, the touch lines extend along a first direction, and each of the fifthsub-touch electrodes 81 and each of the second touch electrodes TP2 are electrically connected to adifferent touch line 7.
The area of the second touch electrode TP2 in therow 1touch electrode row 2 is different from that of the second touch electrode TP2 in other touch electrode rows, the second touch electrode TP2 in therow 1touch electrode row 2 is staggered from that of the second touch electrode TP2 in other touch electrode rows, each touch electrode TP is connected with atouch line 7, and thetouch line 7 transmits an electrical signal to the touch electrode TP. Wherein each of the fifthsub-touch electrodes 81 and each of the second touch electrodes TP2 are electrically connected to adifferent touch line 7, i.e., transmit an electrical signal to the fifthsub-touch electrodes 81 and the second touch electrodes TP2 through thedifferent touch lines 7.
As described above, when the display panel displays, the second display area AA1 is used for displaying, and the first display area AA1 may be in the second state, that is, the first display area AA1 is used for transmitting external light, so that a signal required to be transmitted to the fifthsub-touch electrode 81 is different from a signal in the first state at this time, and certainly, the signal is also different from the display state in the second display area AA2, and in order to be able to separately transmit a signal to the fifthsub-touch electrode 81 in the first display area AA1, an electrical signal is transmitted to the fifthsub-touch electrode 81 and the second touch electrode TP2 throughdifferent touch lines 7, so that it is avoided that the same electrical signal as the second touch electrode TP2 is transmitted and thus separate control cannot be achieved.
In some optional embodiments, with continued reference to fig. 1, the touch electrode TP is multiplexed as a common electrode.
Thedisplay panel 000 provided in this embodiment may be a liquid crystal display panel, and includes a pixel electrode (not shown) and a common electrode (multiplexed as the touch electrode TP), where appropriate voltages are respectively provided to the pixel electrode and the common electrode, and an electric field may be formed to control liquid crystal molecule deflection, so as to implement a display function.
It should be noted that, when the display panel is displaying, the display panel performs a display function to display image information, and the touch line provides a common voltage signal to the touch electrode TP, thereby implementing the display function. When touching, the touch line provides a touch emission signal to the touch electrode TP and receives a touch sensing signal, thereby implementing a touch function. The touch electrode TP adopts a time-sharing multiplexing technology, which can reduce film layer structures in the display panel, is beneficial to reducing the manufacturing process and cost of the display panel, and is beneficial to thinning the display panel.
In some alternative embodiments, referring to fig. 8, fig. 8 is a cross-sectional view of a display panel provided in the present invention. The display panel in fig. 8 further includes adriving layer 22 located on one side of thesubstrate 9 close to the touch electrode TP, thedriving layer 22 includes a driving transistor T, and atouch line 7 located on one side of the driving transistor T away from thesubstrate 9, and thetouch line 7 is electrically connected to the touch electrode TP through a via hole.
It is understood that the cross-sectional view of fig. 8 applies to any of the plan views of fig. 3, 5 and 7. Fig. 8 illustrates only the driving transistor T as a top gate, but when the driving transistor T is a top gate, the driving transistor T further includes alight shielding layer 12, thelight shielding layer 12 is located on one side of thesubstrate 9 close to the touch electrode TP, an orthogonal projection of thelight shielding layer 12 on a plane of thesubstrate 9 overlaps an orthogonal projection of theactive layer 10 on a plane of thesubstrate 9, so as to prevent external light from irradiating theactive layer 10 to generate a leakage current, which affects the stability of the driving transistor T.
The display panel provided by this optional embodiment further includes apixel electrode 11 and a common electrode, the touch electrode TP is multiplexed as the common electrode, appropriate voltages are provided to the pixel electrode and the common electrode, respectively, an electric field can be formed to control liquid crystal molecule deflection, so as to implement a display function, and thetouch line 7 provides a touch emission signal to the touch electrode TP and receives a touch sensing signal, so as to implement a touch function.
Thetouch control lines 7 and the touch control electrodes TP are distributed on different metal layers and are connected through via holes, and the connection mode is easy to realize and manufacture.
In some alternative embodiments, referring to fig. 9 and 10, fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention, and fig. 10 is a cross-sectional view taken along the direction N-N' in fig. 9. Thedisplay device 111 provided in this embodiment includes thedisplay panel 000 provided in the above embodiment of the present invention, and the display device includes any one of thedisplay panels 000, as can be seen from fig. 10, the display device further includes theimage sensing unit 40, theimage sensing unit 40 is located on a side of thedisplay panel 000 away from the light emitting surface O, a front projection of theimage sensing unit 40 on a plane where thedisplay panel 000 is located in the first display area AA1, only a case of having oneimage sensing unit 40 is shown in fig. 10, but of course, the number of theimage sensing units 40 may be more. The embodiment of fig. 9 is only an example of a mobile phone, and thedisplay device 111 is described, it is understood that thedisplay device 111 provided in the embodiment of the present invention may be anotherdisplay device 111 having a display function, such as a computer, a television, and a vehicle-mounted display device, and the present invention is not limited thereto. Thedisplay device 111 provided in the embodiment of the present invention has the beneficial effect of thedisplay panel 000 provided in the embodiment of the present invention, and specific reference may be made to the specific description of thedisplay panel 000 in the above embodiments, which is not described herein again.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:
the display panel comprises a first display area, a second display area and a non-display area, wherein the second display area is at least partially arranged around the first display area, the non-display area at least partially surrounds the second display area, the first display area has a first state and a second state, the first display area is used for displaying pictures in the first state, and the first display area is used for transmitting external light in the second state; the display panel comprises a center line extending along a first direction, and the first display area and the second display area are axially symmetrically arranged along the center line in a second direction; the display panel comprises a plurality of touch electrode rows, each touch electrode row comprises a plurality of touch electrodes, and the touch electrodes comprise a first touch electrode and a second touch electrode; the first touch electrode is located in the first display area, and the second touch electrode is located in the second display area. In the invention, the first touch electrode is arranged in the first display area, and in the prior art, the touch electrode in the camera area is cut off instead of being arranged in the corresponding camera area, so that the touch function of the camera area cannot be realized; certainly, the first display area can be switched between the first state and the second state, so that the first display area can also display, and compared with the situation that the corresponding shooting area in the prior art cannot display, the first display area can also display, so that the screen occupation ratio is favorably improved, and a full screen is realized; in addition, the first display area is axially symmetrically arranged along the central line, the first touch electrodes in the first display area are arranged in the middle of the touch electrode row where the first touch electrodes are located, the second touch electrodes of the touch electrode row in the second direction are arranged on two sides of the first touch electrodes and are arranged towards two sides by taking the first touch electrodes as the center, and therefore the problem that the camera shooting area cannot be located in the middle due to even-number row arrangement of the touch electrodes is solved.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (13)
1. A display panel is characterized by comprising a first display area, a second display area and a non-display area, wherein the second display area is at least partially arranged around the first display area, the non-display area at least partially surrounds the second display area, the first display area has a first state and a second state, the first display area is used for displaying pictures in the first state, and the first display area is used for transmitting external light in the second state;
the display panel comprises a center line extending along a first direction, the first display area and the second display area are arranged along the center line in an axial symmetry mode in a second direction, and the second direction is intersected with the first direction;
the display panel comprises a plurality of touch electrode rows, each touch electrode row comprises a plurality of touch electrodes, and the touch electrodes comprise a first touch electrode and a second touch electrode;
the first touch electrode is located in the first display area, and the second touch electrode is located in the second display area.
2. The display panel according to claim 1, wherein in at least one row of the touch electrode rows, the second touch electrode comprises a plurality of first sub-touch electrodes and a plurality of second sub-touch electrodes, the first touch electrode comprises a third sub-touch electrode and a fourth sub-touch electrode which are insulated from each other, the third sub-touch electrode is adjacent to one of the first sub-touch electrodes and electrically connected to form a third touch electrode, and the fourth sub-touch electrode is adjacent to the other first sub-touch electrode and electrically connected to form a fourth touch electrode.
3. The display panel according to claim 2, wherein the area of the third touch electrode, the area of the fourth touch electrode and the area of the second sub-touch electrode are all equal.
4. The display panel according to claim 2, further comprising a plurality of touch lines extending in a first direction, wherein the third sub-touch electrode shares the same touch line with the first sub-touch electrode constituting the third touch electrode, and the fourth sub-touch electrode shares the same touch line with the first sub-touch electrode constituting the fourth touch electrode.
5. The display panel of claim 2, wherein the area of the third sub-touch electrode, the area of the fourth sub-touch electrode, and the area of the first sub-touch electrode are equal to each other and equal to half of the area of the second sub-touch electrode.
6. The display panel according to claim 1, wherein the first display area comprises an image pickup area, the image pickup area and the first touch electrodes are arranged in a one-to-one correspondence, and the first touch electrodes and the second touch electrodes are insulated from each other.
7. The display panel according to claim 6, further comprising a plurality of touch lines extending in a first direction, wherein the first touch electrode and the second touch electrode are electrically connected to different touch lines.
8. The display panel according to claim 6, wherein the second touch electrodes in the touch electrode row where the first touch electrode is located are staggered with the second touch electrodes in other touch electrode rows along the second direction.
9. The display panel according to claim 6, wherein the number of the image pickup regions is at least two;
the first touch electrode comprises a plurality of fifth sub-touch electrodes which are insulated from each other, and the fifth sub-touch electrodes are arranged in one-to-one correspondence with the image pickup area.
10. The display panel according to claim 9, further comprising a plurality of touch lines extending in a first direction, wherein each of the fifth sub-touch electrodes and each of the second touch electrodes are electrically connected to different ones of the touch lines.
11. The display panel according to claim 1, wherein the touch electrode is multiplexed as a common electrode.
12. The display panel according to claim 4, 7 or 10, further comprising a driving layer on a side of the substrate closer to the touch electrode, wherein the driving layer comprises a driving transistor and the touch line on a side of the driving transistor farther from the substrate, and the touch line and the touch electrode are electrically connected through a via.
13. A display device, comprising the display panel of any one of claims 1 to 12, and further comprising an image sensing unit, wherein the image sensing unit is located on a side of the display panel away from the light exit surface, and an orthogonal projection of the image sensing unit on a plane where the display panel is located in the first display area.
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| CN202010796105.8ACN112000243B (en) | 2020-08-10 | 2020-08-10 | Display panel and display device |
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| CN202010796105.8ACN112000243B (en) | 2020-08-10 | 2020-08-10 | Display panel and display device |
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| CN112000243Atrue CN112000243A (en) | 2020-11-27 |
| CN112000243B CN112000243B (en) | 2022-10-11 |
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| CN116204083A (en)* | 2023-04-28 | 2023-06-02 | 惠科股份有限公司 | Array substrate and touch display panel |
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| Publication number | Publication date |
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| CN112000243B (en) | 2022-10-11 |
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