CN107229142B - Display apparatus and display method - Google Patents
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- CN107229142B CN107229142BCN201610179928.XACN201610179928ACN107229142BCN 107229142 BCN107229142 BCN 107229142BCN 201610179928 ACN201610179928 ACN 201610179928ACN 107229142 BCN107229142 BCN 107229142B
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
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Abstract
Translated fromChinese
Description
Technical Field
The present disclosure relates to the field of image display technologies, and in particular, to a display device and a display method.
Background
A display screen is one of the most common input and output devices on an electronic device. The display screen has the capability of displaying text information, image information and video information.
The current display screen is a wide-viewing-angle liquid crystal display screen generally, and the viewing angle is approximately in the range of 120-170 degrees. When a user uses the electronic device in a crowded place such as a bus and a subway, the user is likely to be seen by other people around the user to see the content on the display screen, and the privacy of the user is leaked.
Disclosure of Invention
In order to solve the problem that when a display screen is a wide-viewing-angle display screen, other people around the display screen can easily see display contents on the display screen, which causes privacy disclosure of a user, the embodiment of the disclosure provides a display device and a display method. The technical scheme is as follows:
according to a first aspect of embodiments of the present disclosure, there is provided a display apparatus including: the display device comprises a control unit, a display driving unit and a lens driving unit which are connected with the control unit, a display panel connected with the display driving unit, and a liquid crystal lens array connected with the lens driving unit; the liquid crystal lens array is positioned on the display panel and comprises a plurality of liquid crystal lenses which are arranged in parallel;
the control unit is used for sending display image frames to the display driving unit; sending a lens control instruction to the lens driving unit;
the display driving unit is used for driving the display panel to display the display image frames on a plurality of display areas which are arranged in parallel and at intervals, and each display area is used for respectively displaying a part of display contents in the display image frames;
the lens driving unit is used for controlling the refractive index of each liquid crystal lens according to the lens control instruction;
the display content displayed in each display area is projected to a preset visual range through refraction of the corresponding liquid crystal lens.
Optionally, the display driving unit is configured to determine, on the display panel, positions of the plurality of display areas arranged in parallel and at intervals according to pre-stored position information; splitting the display image frame to obtain display contents respectively corresponding to each display area; and driving each display area to respectively display the corresponding display content according to the position.
Optionally, the control unit is further configured to send a position determination instruction to the display driving unit;
the display driving unit is used for determining the positions of the plurality of display areas which are arranged in parallel and at intervals on the display panel according to the position determination instruction; splitting the display image frame to obtain display contents respectively corresponding to each display area; and driving each display area to respectively display the corresponding display content according to the position.
Optionally, the position determination instruction is used to indicate the position of each display area;
the control unit is further used for determining the position of each display area according to the position and the refractive index of each liquid crystal lens.
Optionally, the control unit is further configured to send a state switching instruction to the display driving unit and the lens driving unit when the operating state is switched from the narrow viewing angle operating state to the wide viewing angle operating state;
the display driving unit is used for driving the display panel to display the display image frame on the whole display area after receiving the state switching instruction;
and the lens driving unit is used for adjusting the refractive index of each liquid crystal lens after receiving the state switching instruction, so that the light rays corresponding to the display panel are emitted along a straight line.
Optionally, the predetermined visual range is a range determined according to a binocular distance of the human eye.
Optionally, the display driving unit is further configured to drive an idle area between two adjacent display areas on the display panel to be in an inactive state.
Optionally, the display driving unit is further configured to drive an idle area between two adjacent display areas on the display panel to display predetermined disguised display content;
the camouflage display content is projected to the area outside the preset visual range through refraction of the corresponding liquid crystal lens.
According to a second aspect of the embodiments of the present disclosure, there is provided a display method applied to a display apparatus, the display apparatus including: the display device comprises a control unit, a display driving unit and a lens driving unit which are connected with the control unit, a display panel connected with the display driving unit, and a liquid crystal lens array connected with the lens driving unit; the liquid crystal lens array is positioned on the display panel and comprises a plurality of liquid crystal lenses which are arranged in parallel;
the method comprises the following steps:
the control unit sends a display image frame to the display driving unit and sends a lens control instruction to the lens driving unit;
the display driving unit drives the display panel to display the display image frame on a plurality of display areas which are arranged in parallel and at intervals, and each display area is used for respectively displaying a part of display content of the display image frame;
the lens driving unit controls the refractive index of each liquid crystal lens according to the lens control instruction;
the display content displayed in each display area is projected to a preset visual range through refraction of the corresponding liquid crystal lens.
Optionally, the driving the display panel to display the display image frame on a plurality of display regions arranged in parallel and at intervals by the display driving unit includes:
the display driving unit determines the positions of the plurality of parallel display areas arranged at intervals on the display panel according to pre-stored position information;
the display driving unit splits the display image frame to obtain display contents respectively corresponding to each display area;
the display driving unit drives each display area to respectively display the corresponding display content according to the position;
optionally, the method further comprises:
the control unit sends a position determination instruction to the display driving unit;
the display driving unit drives the display panel to display the display image frame on a plurality of display areas which are arranged in parallel and at intervals, and the display driving unit comprises:
the display driving unit determines the positions of the plurality of parallel display areas arranged at intervals on the display panel according to the position determination instruction;
the display driving unit splits the display image frame to obtain display contents respectively corresponding to each display area;
and the display driving unit drives each display area to respectively display the corresponding display content according to the position.
Optionally, the position determination instruction is used to indicate a position of each display area, and the method further includes:
the control unit determines the position of each display region according to the position and the refractive index of each liquid crystal lens.
Optionally, the method further comprises:
when the working state is switched from the narrow visual angle working state to the wide visual angle working state, the control unit sends a state switching instruction to the display driving unit and the lens driving unit;
the display driving unit drives the display panel to display the display image frame on the whole display area after receiving the state switching instruction;
and after receiving the state switching instruction, the lens driving unit adjusts the refractive index of each liquid crystal lens, so that the light rays corresponding to the display panel are emitted along a straight line.
Optionally, the predetermined visual range is a range determined according to a binocular distance of the human eye.
Optionally, the method further comprises:
the display driving unit drives an idle area between two adjacent display areas on the display panel to be in a non-operating state.
Optionally, the method further comprises:
the display driving unit drives an idle area between two adjacent display areas on the display panel to display preset camouflage display contents;
the camouflage display content is projected to the area outside the preset visual range through refraction of the corresponding liquid crystal lens.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
sending a display image frame to a display driving unit through a control unit, and sending a lens control instruction to a lens driving unit; the display driving unit drives the display panel to display and display image frames on a plurality of display areas which are arranged in parallel and at intervals, and each display area is used for respectively displaying a part of display content of the display image frames; the lens driving unit controls the refractive index of each liquid crystal lens according to the lens control instruction; the display content displayed in each display area is reflected to a preset visual range through refraction of the corresponding liquid crystal lens; the problem that in the related art, when the display screen displays in a wide visual angle, other people around the display screen can easily see the display content on the display screen, so that the privacy of a user is revealed is solved; the effect that the visual range of the display panel is limited within the preset visual range, and the area outside the preset visual range cannot be seen or cannot clearly see the display image frame on the display panel is achieved. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a block diagram illustrating a display device according to an exemplary embodiment;
FIG. 2 is a schematic diagram of the operation of the display device according to the embodiment shown in FIG. 1;
FIG. 3 is a schematic diagram illustrating the effect of the displayed image frame in the display device according to the embodiment shown in FIG. 1;
FIG. 4 is a schematic diagram of a display device according to the embodiment of FIG. 1;
FIG. 5 is a flow chart illustrating a display method according to an exemplary embodiment;
fig. 6 is a flowchart illustrating a display method according to another exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Embodiments of the present disclosure are directed to providing a display apparatus and a display method having a narrower viewing angle. Optionally, the display device can also be switched between a wide viewing angle mode and a narrow viewing angle mode. The display device may be any electronic device with a display screen, such as a mobile phone, a tablet computer, and the like.
Fig. 1 is a block diagram illustrating a display device 100 according to an exemplary embodiment. As shown in fig. 1, the display device 100 includes:
acontrol unit 120, adisplay driving unit 142 and alens driving unit 162 connected to thecontrol unit 120, adisplay panel 144 connected to thedisplay driving unit 142, and a liquidcrystal lens array 164 connected to thelens driving unit 162. Thelc lens array 164 is disposed on thedisplay panel 144, and thelc lens array 164 includes a plurality oflc lenses 163 arranged in parallel.
Thecontrol unit 120 may be a processor or a graphics processor. Thecontrol unit 120 has the capability of outputting display image frames and issuing control instructions.
Thedisplay driving unit 142 includes a driving circuit for driving thedisplay panel 144 to display. TheDisplay panel 144 may be an LCD (Liquid Crystal Display) panel or an OLED (Organic Light-emitting Display) panel. Optionally, when thedisplay panel 144 is an LCD panel, the display device 100 further includes a backlight positioned below the LCD panel.
Thelens driving unit 162 includes a lens driving circuit, which is also one of liquid crystal driving circuits, for controlling the refractive index of eachliquid crystal lens 163 in the liquidcrystal lens array 164. The refractive index of eachliquid crystal lens 163 is realized by controlling the deflection direction of the liquid crystal molecules.
Referring to fig. 2 in combination, fig. 2 shows an operation diagram of thedisplay panel 144 and the liquidcrystal lens array 164 in a narrow viewing angle operation state. The left-hand portion (a) of fig. 2 is a schematic side view of thedisplay panel 144 and the liquidcrystal lens array 164. The liquidcrystal lens array 164 is positioned above thedisplay panel 144. The upper right (b) portion in fig. 2 is a schematic front view of the liquidcrystal lens array 164; the lower right (c) portion in fig. 2 is a schematic front view of thedisplay panel 144.
When in the narrow viewing angle operating state, thecontrol unit 120 sends a display image frame to thedisplay driving unit 142; a lens control instruction is sent to thelens driving unit 162.
Thedisplay driving unit 142 is configured to drive thedisplay panel 144 to display a display image frame on a plurality ofdisplay areas 143 arranged in parallel and at intervals, where eachdisplay area 143 is configured to display a portion of display content in the display image frame. The union of the display contents displayed by all thedisplay areas 143 is the same as the display image frame.
In other words, the display image frame is divided into a plurality of bar-shaped display contents, each of which is displayed in one of thedisplay areas 143. Eachdisplay area 143 is a rectangular bar-shaped display area. Theidle region 145 between twoadjacent display regions 143 may not display any content.
In one possible embodiment, the length and the width of eachdisplay area 143 are the same, for example, eachdisplay area 143 has a length of 1080 pixels and a width of 5 pixels. The width of theidle regions 145 between eachdisplay region 143 is also the same, for example, the width of eachidle region 145 is 3 pixels. In another possible implementation, there are at least twodisplay regions 143 with the same length but different widths, for example, the width of thedisplay region 143 located in the central region of thedisplay panel 144 is greater than the width of thedisplay region 143 located in the edge region of thedisplay panel 144. There are at least twoidle regions 145 having the same length but different widths, for example, theidle region 145 located in the central region of thedisplay panel 144 has a width greater than that of theidle region 145 located in the edge region of thedisplay panel 144. The embodiments of the present disclosure do not limit this.
And alens driving unit 162 for controlling the refractive index of eachliquid crystal lens 163 according to the lens control instruction. Thelens driving unit 162 controls the refractive index of eachliquid crystal lens 163 by controlling the deflection direction of the liquid crystal molecules in eachliquid crystal lens 163.
In one possible embodiment, the length and the width of eachlc lens 163 are the same, for example, eachlc lens 163 has a length of 1080 pixels and a width of 5 pixels. In another possible embodiment, there are at least twoliquid crystal lenses 163 having the same length but different widths, such as aliquid crystal lens 163 located in a central region of the liquidcrystal lens array 164 having a width greater than a width of theliquid crystal lens 163 located in an edge region of the liquidcrystal lens array 164. The embodiments of the present disclosure do not limit this.
The display content displayed in eachdisplay region 143 is projected to a predetermined visible range by refraction of the correspondingliquid crystal lens 163. That is, the display image frame 10 is divided into a plurality of pieces of display contents to be displayed when displayed by the display device 100, and the front view of thefinal display screen 20 may refer to the schematic illustration in fig. 3.
With continued reference to fig. 4, let the left side in fig. 4 be the first direction and the right side be the second direction. Eachdisplay area 143 has an edge a in the first direction and an edge b in the second direction; eachidle region 145 has an edge g in the first direction and an edge h in the second direction; eachlc lens 163 corresponds to at least onedisplay area 143 and oneidle area 145 thereunder. Wherein eachliquid crystal lens 163 has an edge c in the first direction and an edge d in the second direction. The predetermined visible range has an edge e in the first direction and an edge f in the second direction.
For eachdisplay area 143, the rule is satisfied between the edges: the display contents at the edge a of thedisplay area 143 are directed to between the edges ef through theliquid crystal lens 163 with the edge cd, and the display contents at the edge b of thedisplay area 143 are directed to between the edges ef through theliquid crystal lens 163 with the edge cd, thereby ensuring that the display contents in eachdisplay area 143 are completely visible only within a predetermined visible range. It should be noted that the design of thedisplay area 143 at the extreme edge may be different from that of fig. 4.
In addition, since the predetermined visible range is an area for both eyes of the user to see, the width of the predetermined visible range is set according to the eye-to-eye distance of the human eye, and the width ef is generally slightly larger than the eye-to-eye distance of the human eye. That is, the predetermined visible range is a range set according to the interocular distance of the human eye.
In one possible embodiment, the position of thedisplay area 143 on thedisplay panel 144 is fixed, and the refractive index of theliquid crystal lens 163 is fixed. That is, the predetermined visible range is fixed. At this time:
thedisplay driving unit 142 is used for determining the positions of a plurality ofdisplay areas 143 which are arranged in parallel and at intervals on thedisplay panel 144 according to the pre-stored position information; splitting the display image frame to obtain display contents respectively corresponding to eachdisplay area 143; eachdisplay area 143 is driven according to the position to display the corresponding display content.
In another possible embodiment, the position of the human eye is variable, and the distance G between the human eye and the liquidcrystal lens array 164 is variable, so that the predetermined visible range is variable. At this time:
thecontrol unit 120 is further configured to send a position determination instruction to thedisplay driving unit 142.
Thedisplay driving unit 142 is used for determining the positions of a plurality ofdisplay areas 143 which are arranged in parallel and at intervals on thedisplay panel 144 according to the position determining instruction; splitting the display image frame to obtain display contents respectively corresponding to eachdisplay area 143; eachdisplay area 143 is driven according to the position to display the corresponding display content. Wherein the position determination instruction is used to indicate the position of eachdisplay area 143.
Alternatively, thecontrol unit 120 determines the position of eachdisplay region 143 according to the position and refractive index of eachliquid crystal lens 163. The position of eachliquid crystal lens 163 includes the width and relative positional arrangement of eachliquid crystal lens 163.
Alternatively, when the position of the human eye changes, thecontrol unit 120 dynamically determines the position of eachdisplay region 143 according to the rule shown in fig. 4, based on the binocular pitch ef of the human eye, the projection coordinates of the human eye on the liquidcrystal lens array 164, and the distance G between the human eye and the liquidcrystal lens array 164, the positions and refractive indexes of the respectiveliquid crystal lenses 163.
In this embodiment, how thecontrol unit 120 obtains the eye-to-eye distance ef of the human eyes, the projection coordinates of the human eyes on the liquidcrystal lens array 164, and the distance G between the human eyes and the liquidcrystal lens array 164 is not limited, and thecontrol unit 120 may obtain the above parameters through a front camera, a distance sensor, and other devices.
In summary, the display device provided in this embodiment sends the display image frame to the display driving unit through the control unit, and sends the lens control instruction to the lens driving unit; the display driving unit drives the display panel to display and display image frames on a plurality of display areas which are arranged in parallel and at intervals, and each display area is used for respectively displaying a part of display content of the display image frames; the lens driving unit controls the refractive index of each liquid crystal lens according to the lens control instruction; the display content displayed in each display area is reflected to a preset visual range through refraction of the corresponding liquid crystal lens; the problem that when the display screen is a wide-viewing-angle display screen in the related technology, other people around the display screen can easily see the display content on the display screen, so that the privacy of a user is revealed is solved; the effect that the visual range of the display panel is limited within the preset visual range, and the area outside the preset visual range cannot be seen or cannot clearly see the display image frame on the display panel is achieved.
In an alternative embodiment provided based on the embodiment shown in fig. 1, the display device 100 has two modes of operation: a wide view angle mode of operation and a narrow view angle mode of operation. The display device 100 can be switched between the two operating modes described above.
When switching from the wide viewing angle operating mode to the narrow viewing angle operating mode, thecontrol unit 120 sends a first state switching instruction to thedisplay driving unit 142 and thelens driving unit 162, and thedisplay driving unit 142 and thelens driving unit 162 operate in the above-described operating manner.
When switching from the narrow viewing angle operation mode to the wide viewing angle operation mode, thecontrol unit 120 sends a second state switching instruction to thedisplay driving unit 142 and thelens driving unit 162. Thedisplay driving unit 142 is configured to drive thedisplay panel 142 to display a display image frame on the entire display area after receiving the second state switching instruction, that is, in a normal operation mode. Thelens driving unit 162 is configured to adjust the refractive index of eachliquid crystal lens 163 after receiving the second state switching instruction, so that the light corresponding to the display panel is emitted along a straight line.
The embodiment can meet the display requirements of users in different use scenes by providing two optional working modes.
In another alternative embodiment provided based on the embodiment shown in fig. 1, when the display apparatus 100 is in the narrow viewing angle operation mode, theidle region 145 between twoadjacent display regions 143 in thedisplay panel 144 may display predetermined disguised display contents, which means display contents for viewing in a range outside the predetermined visible range. The camouflage display contents are projected to the regions outside the predetermined visible range by refraction of the respective correspondingliquid crystal lenses 163. Disguised display content may disguise displayed image frames displayed within thedisplay area 143, such as: if the displayed image frame is a game picture and the disguised display content is a web page picture, the game picture is seen within a predetermined visible range, but the web page picture is seen within a range outside the predetermined visible range.
FIG. 5 is a flow chart illustrating a display method according to an exemplary embodiment. The method is applied to a display device which comprises a control unit, a display driving unit and a lens driving unit which are connected with the control unit, a display panel connected with the display driving unit, and a liquid crystal lens array connected with the lens driving unit. The liquid crystal lens array is positioned on the display panel and comprises a plurality of liquid crystal lenses which are arranged in parallel. The method may include the following steps.
Instep 501, the control unit sends a display image frame to the display driving unit and a lens control instruction to the lens driving unit.
Instep 502, the display driving unit drives the display panel to display a display image frame on a plurality of display regions arranged in parallel and at intervals, where each display region is used for respectively displaying a part of display content of the display image frame.
Instep 503, the lens driving unit controls the refractive index of each liquid crystal lens according to the lens control instruction.
The display content displayed in each display area is reflected to a preset visual range through refraction of the corresponding liquid crystal lens.
Here,step 502 and step 503 are steps executed in parallel.
In summary, in the display method provided in this embodiment, the control unit sends the display image frame to the display driving unit, and sends the lens control instruction to the lens driving unit; the display driving unit drives the display panel to display and display image frames on a plurality of display areas which are arranged in parallel and at intervals, and each display area is used for respectively displaying a part of display content of the display image frames; the lens driving unit controls the refractive index of each liquid crystal lens according to the lens control instruction; the display content displayed in each display area is reflected to a preset visual range through refraction of the corresponding liquid crystal lens; the problem that when the display screen is a wide-viewing-angle display screen in the related technology, other people around the display screen can easily see the display content on the display screen, so that the privacy of a user is revealed is solved; the effect that the visual range of the display panel is limited within the preset visual range, and the area outside the preset visual range cannot be seen or cannot clearly see the display image frame on the display panel is achieved.
In an alternative embodiment provided based on the embodiment shown in fig. 5, as shown in fig. 6, the method includes:
instep 601, when in the narrow viewing angle operating state, the control unit sends a display image frame to the display driving unit and sends a barrier control instruction to the lens driving unit.
Since the display stream usually includes an image frame sequence consisting of one frame by one frame of display image frames, this step is performed periodically a plurality of times or when the display image frames change.
For example, the control unit executes this step every 1/24 second.
Instep 602, the display driving unit drives the display panel to display a display frame on a plurality of display regions arranged in parallel and at intervals, where each display region is used for respectively displaying a part of display content of the display frame.
As a possible implementation manner, this step can be implemented by the following steps:
1. the display driving unit determines the positions of a plurality of parallel display areas arranged at intervals on the display panel according to the pre-stored position information;
2. the display driving unit splits the display image frame to obtain display contents respectively corresponding to each display area;
3. and the display driving unit drives each display area to respectively display the corresponding display content according to the position.
As another possible implementation, the control unit determines the position of each display region according to the position and refractive index of each liquid crystal lens, and sends a position determination instruction to the display driving unit, the position determination instruction being for indicating the position of each display region. Accordingly, this step may be alternatively implemented by:
1. the display driving unit receives a position determination instruction sent by the control unit;
2. the display driving unit determines the positions of a plurality of display areas which are arranged in parallel and at intervals on the display panel according to the position determination instruction;
3. the display driving unit splits the display image frame to obtain display contents respectively corresponding to each display area;
4. and the display driving unit drives each display area to respectively display the corresponding display content according to the position.
The display content displayed in each display area is reflected to a preset visual range through refraction of the corresponding liquid crystal lens. Alternatively, the predetermined visible range is a range determined according to a binocular distance of the human eye.
Instep 603, the lens driving unit controls the refractive index of each liquid crystal lens according to the lens control instruction.
Here,step 602 and step 603 are steps executed in parallel.
Instep 604, the control unit sends a state switching instruction to the display driving unit and the lens driving unit when the operating state is switched from the narrow viewing angle operating state to the wide viewing angle operating state.
Instep 605, the display driving unit drives the display panel to display a display image frame on the entire display area after receiving the state switching instruction.
Instep 606, after receiving the state switching indication, the lens driving unit adjusts the refractive index of each liquid crystal lens, so that the light corresponding to the display panel is emitted along a straight line.
Wherein, steps 605 and 606 are executed in parallel.
It should be noted that, when the operating state is switched from the wide-viewing-angle operating state to the narrow-viewing-angle operating state, the reverse process of thesteps 601 to 606 is easily considered by those skilled in the art through the description of thesteps 601 to 606 and the description in the foregoing device embodiment, and details are not repeated herein.
It should be noted that, when the operating state is the narrow viewing angle operating state, the display driving unit drives an idle region between two adjacent display regions on the display panel to be in the inactive state, or drives the idle region on the display panel to display predetermined disguised display contents. The camouflage display content is projected to an area outside a predetermined visible range through refraction of the corresponding liquid crystal lenses.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (14)
1. A display device, characterized in that the display device comprises: the display device comprises a control unit, a display driving unit and a lens driving unit which are connected with the control unit, a display panel connected with the display driving unit, and a liquid crystal lens array connected with the lens driving unit; the liquid crystal lens array is positioned on the display panel and comprises a plurality of liquid crystal lenses which are arranged in parallel;
the control unit is used for sending display image frames to the display driving unit; sending a lens control instruction to the lens driving unit;
the display driving unit is used for driving the display panel to display the display image frames on a plurality of display areas which are arranged in parallel and at intervals, and each display area is used for respectively displaying a part of display contents in the display image frames;
the lens driving unit is used for controlling the refractive index of each liquid crystal lens according to the lens control instruction;
the display content displayed in each display area is projected to a preset visual range through refraction of the corresponding liquid crystal lens;
the control unit is further used for sending a position determining instruction to the display driving unit, wherein the position determining instruction is used for indicating the position of each display area;
when the positions of the human eyes are changed, the control unit is used for determining the position of each display area according to the distance between the two eyes of the human eyes, the projection coordinates of the human eyes on the liquid crystal lens array, the distance between the human eyes and the liquid crystal lens array, and the positions and the refractive indexes of the liquid crystal lenses.
2. The display device according to claim 1,
the display driving unit is used for determining the positions of the plurality of display areas which are arranged in parallel and at intervals on the display panel according to the position determination instruction; splitting the display image frame to obtain display contents respectively corresponding to each display area; and driving each display area to respectively display the corresponding display content according to the position.
3. Display device according to claim 2, characterized in that
And the control unit is also used for determining the position of each display area according to the position and the refractive index of each liquid crystal lens when the position of the human eyes is not changed.
4. The display device according to any one of claims 1 to 3,
the control unit is further used for sending a state switching instruction to the display driving unit and the lens driving unit when the working state is switched from the narrow visual angle working state to the wide visual angle working state;
the display driving unit is used for driving the display panel to display the display image frame on the whole display area after receiving the state switching instruction;
and the lens driving unit is used for adjusting the refractive index of each liquid crystal lens after receiving the state switching instruction, so that the light rays corresponding to the display panel are emitted along a straight line.
5. A display device according to any one of claims 1 to 3, wherein the predetermined visual range is a range determined in accordance with a binocular spacing of human eyes.
6. The display device according to any one of claims 1 to 3,
the display driving unit is further used for driving an idle area between two adjacent display areas on the display panel to be in an inoperative state.
7. The display device according to any one of claims 1 to 3,
the display driving unit is further used for driving an idle area between two adjacent display areas on the display panel to display preset camouflage display contents;
the camouflage display content is projected to the area outside the preset visual range through refraction of the corresponding liquid crystal lens.
8. The display method is applied to a display device, and the display device comprises: the display device comprises a control unit, a display driving unit and a lens driving unit which are connected with the control unit, a display panel connected with the display driving unit, and a liquid crystal lens array connected with the lens driving unit; the liquid crystal lens array is positioned on the display panel and comprises a plurality of liquid crystal lenses which are arranged in parallel;
the method comprises the following steps:
the control unit sends a display image frame to the display driving unit and sends a lens control instruction to the lens driving unit;
the display driving unit drives the display panel to display the display image frame on a plurality of display areas which are arranged in parallel and at intervals, and each display area is used for respectively displaying a part of display content of the display image frame;
the lens driving unit controls the refractive index of each liquid crystal lens according to the lens control instruction;
the display content displayed in each display area is projected to a preset visual range through refraction of the corresponding liquid crystal lens;
the control unit sends a position determination instruction to the display driving unit, wherein the position determination instruction is used for indicating the position of each display area;
when the positions of the human eyes are changed, the control unit determines the position of each display area according to the distance between the two eyes of the human eyes, the projection coordinates of the human eyes on the liquid crystal lens array, the distance between the human eyes and the liquid crystal lens array, and the positions and the refractive indexes of the liquid crystal lenses.
9. The display method according to claim 8, wherein the method further comprises:
the display driving unit drives the display panel to display the display image frame on a plurality of display areas which are arranged in parallel and at intervals, and the display driving unit comprises:
the display driving unit determines the positions of the plurality of parallel display areas arranged at intervals on the display panel according to the position determination instruction;
the display driving unit splits the display image frame to obtain display contents respectively corresponding to each display area;
and the display driving unit drives each display area to respectively display the corresponding display content according to the position.
10. The display method according to claim 9, wherein the method further comprises:
when the position of the human eyes is not changed, the control unit determines the position of each display area according to the position and the refractive index of each liquid crystal lens.
11. The display method according to any one of claims 8 to 10, further comprising:
when the working state is switched from the narrow visual angle working state to the wide visual angle working state, the control unit sends a state switching instruction to the display driving unit and the lens driving unit;
the display driving unit drives the display panel to display the display image frame on the whole display area after receiving the state switching instruction;
and after receiving the state switching instruction, the lens driving unit adjusts the refractive index of each liquid crystal lens, so that the light rays corresponding to the display panel are emitted along a straight line.
12. The display method according to any one of claims 8 to 10, wherein the predetermined visible range is a range determined according to a binocular distance of human eyes.
13. The display method according to any one of claims 8 to 10, further comprising:
the display driving unit drives an idle area between two adjacent display areas on the display panel to be in a non-operating state.
14. The display method according to any one of claims 8 to 10, further comprising:
the display driving unit drives an idle area between two adjacent display areas on the display panel to display preset camouflage display contents;
the camouflage display content is projected to the area outside the preset visual range through refraction of the corresponding liquid crystal lens.
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| CN201610179928.XACN107229142B (en) | 2016-03-25 | 2016-03-25 | Display apparatus and display method |
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| CN201610179928.XACN107229142B (en) | 2016-03-25 | 2016-03-25 | Display apparatus and display method |
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| CN107229142Btrue CN107229142B (en) | 2020-06-02 |
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