CN111696494A - Display panel and display device - Google Patents
Display panel and display deviceDownload PDFInfo
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- CN111696494A CN111696494ACN202010627763.4ACN202010627763ACN111696494ACN 111696494 ACN111696494 ACN 111696494ACN 202010627763 ACN202010627763 ACN 202010627763ACN 111696494 ACN111696494 ACN 111696494A
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- 239000004568cementSubstances0.000claimsabstractdescription7
- 239000010409thin filmSubstances0.000claimsdescription35
- 239000011521glassSubstances0.000claimsdescription14
- 239000003990capacitorSubstances0.000claimsdescription10
- 230000001681protective effectEffects0.000claimsdescription7
- AMGQUBHHOARCQH-UHFFFAOYSA-Nindium;oxotinChemical compound[In].[Sn]=OAMGQUBHHOARCQH-UHFFFAOYSA-N0.000claimsdescription6
- 229920006254polymer filmPolymers0.000claimsdescription6
- 239000000853adhesiveSubstances0.000claimsdescription2
- 230000001070adhesive effectEffects0.000claimsdescription2
- 238000010586diagramMethods0.000description7
- 239000004973liquid crystal related substanceSubstances0.000description7
- 239000010408filmSubstances0.000description2
- 230000003071parasitic effectEffects0.000description2
- 229910021417amorphous siliconInorganic materials0.000description1
- 239000003086colorantSubstances0.000description1
- 230000007547defectEffects0.000description1
- 239000003292glueSubstances0.000description1
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- 238000004519manufacturing processMethods0.000description1
- 239000000463materialSubstances0.000description1
- 238000000034methodMethods0.000description1
- 238000012986modificationMethods0.000description1
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Classifications
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
In recent years, with the development of display technology, display devices such as mobile phones and televisions are gradually becoming thinner and lighter, and the internal space of the display device can be increased by combining a sensor originally provided inside the display device with a display panel of the display device.
At present, in the case of disposing a plurality of sensors on a display panel, the plurality of sensors interfere with each other when working simultaneously, thereby generating parasitic capacitance, and further affecting the receiving and transmitting efficiency of the sensors.
Therefore, the prior art has defects and needs to be improved urgently.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, which can avoid mutual interference among a plurality of sensors and further do not influence the receiving and transmitting efficiency of the sensors.
An embodiment of the present application provides a display panel, including:
the display device comprises a display part and a functional device part, wherein the functional device part is connected with the display part through first optical cement and is arranged on the display part;
a light control sensor is arranged on one side in the functional device part, and a touch sensor is arranged on the other side in the functional device part; wherein,
and when a display signal is applied to the display part according to preset display application time, respectively applying sensing signals to the light control sensor and the touch sensor according to a preset time sequence.
In the display panel described in the present application, the sum of the application times of the sensing signals applied to the light control sensor and the touch sensor is the same as the display application time.
In the display panel described in the present application, the sum of application times of applying the sensing signal to the light control sensor and the touch sensor is smaller than the display application time.
In the display panel described herein, the functional device portion includes a sensor glass, an insulating layer, a dielectric layer, and a polymer film layer, which are stacked in this order.
In the display panel of the present application, the touch sensor includes a transmitting electrode and a receiving electrode, the transmitting electrode is disposed in the insulating layer, and the receiving electrode is disposed in the dielectric layer.
In the display panel, the photo sensor includes a sensing thin film transistor, a switching thin film transistor, and a capacitor.
In the display panel of the present application, the sensing thin film transistor and the switching thin film transistor include a gate electrode, an active layer, a source electrode, a drain electrode, and an indium tin oxide thin film, the gate electrode is disposed in the insulating layer, the active layer, the source electrode, and the drain electrode are disposed in the dielectric layer, and the source electrode and the drain electrode cover the active layer, and the indium tin oxide thin film is disposed in the polymer film layer, extends into the dielectric layer, and is connected to the source electrode and the drain electrode in the dielectric layer.
In the display panel described in the present application, the functional device section further includes:
the wiring layer comprises data lines and reading lines which are transversely arranged, and gate lines and gate control lines which are longitudinally arranged, one end of the sensing thin film transistor is connected with the data lines, the other end of the sensing thin film transistor is connected with the gate control lines, one end of the switching thin film transistor is connected with the gate lines, the other end of the switching thin film transistor is connected with the reading lines, one end of the capacitor is connected with the data lines, and the other end of the capacitor is connected with the sensing thin film transistor and the switching thin film transistor.
In the display panel, the functional device part is further provided with a protective glass, and the protective glass is connected with the functional device part through a second optical cement.
An embodiment of the present application further provides a display device, including: the display panel is arranged on the shell and is the display panel.
The display panel provided by the embodiment of the application comprises a display part and a functional device part, wherein the functional device part is connected with the display part through first optical cement and arranged on the display part; a light control sensor is arranged on one side in the functional device part, and a touch sensor is arranged on the other side in the functional device part; when a display signal is applied to the display part within a preset display application time, sensing signals are respectively applied to the light-operated sensor and the touch sensor according to a preset time sequence. The time sequence of the time sensing signals of each sensor is controlled, so that the sensors do not work at the same time, mutual interference among the sensors is avoided, and receiving and transmitting efficiency of the sensors is further not influenced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application.
Fig. 3 is a schematic diagram of timing sequences applied to the photo sensor and the touch sensor when the display panel forms a frame of image according to the embodiment of the present disclosure.
Fig. 4 is a schematic connection diagram of a light control sensor and a routing layer according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic structural diagram of adisplay device 1000 according to an embodiment of the present disclosure. Thedisplay device 100 may include adisplay panel 100, acontrol circuit 200, and acase 300. It should be noted that thedisplay apparatus 1000 shown in fig. 1 is not limited to the above, and may further include other devices, such as a camera, an antenna structure, a fingerprint unlocking module, and the like.
Thedisplay panel 100 is disposed on thehousing 300.
In some embodiments, thedisplay panel 100 may be fixed to thehousing 300, and thedisplay panel 100 and thehousing 300 form a closed space to accommodate thecontrol circuit 200 and the like.
In some embodiments, thehousing 300 may be made of a flexible material, such as a plastic housing or a silicone housing.
Thecontrol circuit 200 is installed in thehousing 300, thecontrol circuit 200 may be a main board of thedisplay device 1000, and one, two or more functional components of a battery, an antenna structure, a microphone, a speaker, an earphone interface, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, a receiver, a processor, and the like may be integrated on thecontrol circuit 200.
Thedisplay panel 100 is mounted in thehousing 300, and thedisplay panel 100 is electrically connected to thecontrol circuit 200 to form a display surface of thedisplay device 1000. Thedisplay panel 100 may include a display area and a non-display area. The display area may be used to display a screen of thedisplay device 1000 or provide a user with touch control. The non-display area may be used to set various functional components.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure, where thedisplay panel 100 includes:
adisplay unit 10 and afunctional device unit 20, thefunctional device unit 20 being connected to thedisplay unit 10 by a firstoptical adhesive 30 and being disposed on thedisplay unit 10;
alight control sensor 21 is arranged on one side in thefunctional device part 20, and atouch sensor 22 is arranged on the other side in thefunctional device part 20; wherein,
when a display signal is applied to thedisplay unit 10 according to a preset display application time, a sensing signal is applied to thephoto sensor 21 and thetouch sensor 22 respectively according to a preset timing.
It can be understood that thedisplay panel 100 is divided into two parts, the firstoptical paste 30 in thedisplay panel 100 is used as a boundary, the lower part of the firstoptical paste 30 is used as thedisplay part 10, and the upper part of the firstoptical paste 30 is used as thefunctional device part 20, so that a structure of preparing (on-glass) functional devices on glass is formed.
Thelight control sensor 21 and thetouch sensor 22 are disposed in thefunctional device section 20, and thelight control sensor 21 and thetouch sensor 22 are controlled to be disposed on both sides of thefunctional device section 20.
Specifically, since the plurality of sensors interfere with each other when operating simultaneously, a parasitic capacitance is generated, and the receiving and transmitting efficiency of the sensors is affected, in this application, the timing sequence of applying the sensing signal to thelight control sensor 21 and thetouch sensor 22 is controlled while applying the display signal to thedisplay unit 10, so as to prevent thelight control sensor 21 and thetouch sensor 22 from interfering with each other when operating simultaneously.
The display panel provided by the embodiment of the application comprises a display part and a functional device part, wherein the functional device part is connected with the display part through first optical cement and arranged on the display part; a light control sensor is arranged on one side in the functional device part, and a touch sensor is arranged on the other side in the functional device part; when a display signal is applied to the display part within a preset display application time, sensing signals are respectively applied to the light-operated sensor and the touch sensor according to a preset time sequence. The time sequence of the time sensing signals of each sensor is controlled, so that the sensors do not work at the same time, mutual interference among the sensors is avoided, and receiving and transmitting efficiency of the sensors is further not influenced.
In some embodiments, referring to fig. 2, in fig. 2, thedisplay panel 100 is taken as an example of a liquid crystal display panel, and thedisplay portion 10 may specifically include: thinfilm transistor glass 101,liquid crystal layer 102, andcolor filter glass 103. Theliquid crystal layer 102 specifically includes alower plate 1021, anupper plate 1022, and aliquid crystal 1023 therebetween. Acolor resistor 1024 is also disposed on theupper plate 1022. When thedisplay portion 10 displays, it is necessary to energize theupper plate 1022 and thelower plate 1021 to twist theliquid crystal 1023 between the upper and lower plates by a certain angle, so that the light can be emitted through the liquid crystal, and thecolor resistor 1024 is used to generate different colors of light through thecolor resistor 1024 after the light passes through theliquid crystal 1023, and thecolor resistor 1024 may be any one of red, green, blue, and white. Taking thecolor resistor 1024 as red for example, when light passes through thecolor resistor 1024 of red, the emitted light is red.
In some embodiments, please refer to fig. 3, fig. 3 is a timing sequence applied to thephoto sensor 21 and thetouch sensor 22 when the display panel forms a frame of image according to the present embodiment. Fig. 3 illustrates an example in which the screen refresh rate of thedisplay panel 100 is 60Hz, and the refresh rate of 60Hz is 16.7ms required for the duration of the display signal applied to thedisplay portion 10 when 1 frame of picture is formed. If the sum of the time required for controlling the application of the sensing signals to the photo sensor and the touch sensor is the same as the display application time, when the time for applying the sensing signal to thephoto sensor 21 is t1 ms, the sensing signal is immediately applied to thetouch sensor 22 according to t2 ms after thephoto sensor 21 stops working, and the total time of t1+ t2 is 16.7 ms.
In some embodiments, the sum of the application times of the sensing signals to thelight control sensor 21 and thetouch sensor 22 is less than the display application time.
It is understood that the sum of the time t1 applied to thetouch sensor 21 and the time t2 applied to thetouch sensor 22 does not exceed the display application time in accordance with the preset timing.
In some embodiments, thefunctional device portion 20 includes asensor glass 201, an insulatinglayer 202, adielectric layer 203, and apolymer film layer 204, which are sequentially stacked.
In some embodiments, thetouch sensor 22 includes a transmittingelectrode 221 and a receivingelectrode 222, the transmittingelectrode 221 is disposed in the insulatinglayer 202, and the receivingelectrode 222 is disposed in thedielectric layer 203.
In order to form thetouch sensor 22 on thedisplay portion 10, it is necessary to simplify theconventional touch sensor 22, and to keep the transmittingelectrode 221 and the receivingelectrode 222 and insulate them by the insulatinglayer 202.
In some embodiments, thelight control Sensor 21 includes a sensing thin film transistor 211(Sensor TFT), a switching thin film transistor 212(Switch TFT), and acapacitor 213.
Thephoto sensor 21 is 2T1C (2 TFTs, 1 capacitor C).
In some embodiments, the sensingthin film transistor 211 and the switchingthin film transistor 212 include a Gate 2101(Gate), an active layer 2102, a Source 2103(Source), a Drain 2104(Drain), and an indium tin oxide film 2105(ITO), theGate 2101 is disposed in the insulatinglayer 202, the active layer 2102, the Source 2103, and the Drain 2104 are disposed in thedielectric layer 203, the Source 2103 and the Drain 2104 wrap the active layer 2102, the indiumtin oxide film 2105 is disposed in thepolymer film layer 204, extends into thedielectric layer 203, and is connected to the Source 2103 and the Drain in thedielectric layer 203.
The active layer 2103 may be any one of a-Si, IGZO, LTPS, or an organic active layer, which is not limited herein.
In some embodiments, please refer to fig. 4, fig. 4 is a schematic diagram illustrating a connection between thephoto sensor 21 and the wiring layer according to an embodiment of the present disclosure. The routing layer comprises data lines and reading lines which are transversely arranged, and gate lines and gate control lines which are longitudinally arranged, one end of the sensingthin film transistor 211 is connected with the data lines, the other end of the sensing thin film transistor is connected with the gate control lines, one end of the switchingthin film transistor 212 is connected with the gate lines, the other end of the switchingthin film transistor 212 is connected with the reading lines, one end of thecapacitor 213 is connected with the data lines, and the other end of thecapacitor 213 is connected with the sensingthin film transistor 211 and the switchingthin film transistor 212.
In some embodiments, aprotective glass 40 is further disposed on thefunctional device portion 20, and theprotective glass 40 is connected to thefunctional device portion 20 through a secondoptical glue 50.
Specifically, in order to protect the sensor in thefunctional device portion 20, aprotective glass 40 may be added to thefunctional device portion 20, thereby preventing the sensor from being broken.
The display panel provided by the embodiment of the application comprises a display part and a functional device part, wherein the functional device part is connected with the display part through first optical cement and arranged on the display part; a light control sensor is arranged on one side in the functional device part, and a touch sensor is arranged on the other side in the functional device part; when a display signal is applied to the display part within a preset display application time, sensing signals are respectively applied to the light-operated sensor and the touch sensor according to a preset time sequence. The time sequence of the time sensing signals of each sensor is controlled, so that the sensors do not work at the same time, mutual interference among the sensors is avoided, and receiving and transmitting efficiency of the sensors is further not influenced.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display panel, the method for manufacturing the display panel, and the display device provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to explain the principle and the implementation manner of the present application, and the description of the embodiments above is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display panel, comprising:
the display device comprises a display part and a functional device part, wherein the functional device part is connected with the display part through first optical cement and is arranged on the display part;
a light control sensor is arranged on one side in the functional device part, and a touch sensor is arranged on the other side in the functional device part; wherein,
and when a display signal is applied to the display part according to preset display application time, respectively applying sensing signals to the light control sensor and the touch sensor according to a preset time sequence.
2. The display panel according to claim 1, wherein the sum of application times of the sensor signals to the light control sensor and the touch sensor is the same as the display application time.
3. The display panel according to claim 1, wherein a sum of application times of the sensing signals to the light control sensor and the touch sensor is smaller than the display application time.
4. The display panel according to claim 1, wherein the functional device portion comprises a sensor glass, an insulating layer, a dielectric layer, and a polymer film layer, which are sequentially stacked.
5. The display panel according to claim 4, wherein the touch sensor comprises a transmitting electrode and a receiving electrode, the transmitting electrode is disposed in the insulating layer, and the receiving electrode is disposed in the dielectric layer.
6. The display panel of claim 4, wherein the light control sensor comprises a sensing thin film transistor, a switching thin film transistor, and a capacitor.
7. The display panel according to claim 6, wherein the sensing thin film transistor and the switching thin film transistor comprise a gate electrode, an active layer, a source electrode, a drain electrode, and an indium tin oxide thin film, the gate electrode is disposed in the insulating layer, the active layer, the source electrode, and the drain electrode are disposed in the dielectric layer, and the source electrode and the drain electrode cover the active layer, and the indium tin oxide thin film is disposed in the polymer film layer, extends into the dielectric layer, and is connected to the source electrode and the drain electrode in the dielectric layer.
8. The display panel according to claim 6, wherein the functional device section further comprises:
the wiring layer comprises data lines and reading lines which are transversely arranged, and gate lines and gate control lines which are longitudinally arranged, one end of the sensing thin film transistor is connected with the data lines, the other end of the sensing thin film transistor is connected with the gate control lines, one end of the switching thin film transistor is connected with the gate lines, the other end of the switching thin film transistor is connected with the reading lines, one end of the capacitor is connected with the data lines, and the other end of the capacitor is connected with the sensing thin film transistor and the switching thin film transistor.
9. The display panel according to claim 1, wherein a protective glass is further provided over the functional device portion, and the protective glass is connected to the functional device portion by a second optical adhesive.
10. A display device comprising a housing and a display panel provided on the housing, wherein the display panel is the display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010627763.4ACN111696494A (en) | 2020-07-02 | 2020-07-02 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010627763.4ACN111696494A (en) | 2020-07-02 | 2020-07-02 | Display panel and display device |
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| CN112466915A (en)* | 2020-11-19 | 2021-03-09 | 北京大学深圳研究生院 | In-screen sensing device structure of display panel and display device |
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| CN112466915A (en)* | 2020-11-19 | 2021-03-09 | 北京大学深圳研究生院 | In-screen sensing device structure of display panel and display device |
| US11740746B2 (en) | 2020-12-29 | 2023-08-29 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Sensor device and display device |
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| US12079425B2 (en) | 2020-12-30 | 2024-09-03 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display panel and driving method thereof |
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