CN116560137A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN116560137A CN116560137A CN202310636648.7A CN202310636648A CN116560137A CN 116560137 A CN116560137 A CN 116560137A CN 202310636648 A CN202310636648 A CN 202310636648A CN 116560137 A CN116560137 A CN 116560137A
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Classifications
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- G—PHYSICS
- G02—OPTICS
- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
- F21V11/065—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs adjustable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
-
- G—PHYSICS
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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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- G—PHYSICS
- G02—OPTICS
- 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
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- 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
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- G02F1/1333—Constructional arrangements; Manufacturing methods
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- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
- G02F1/133521—Interference filters
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- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
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- 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
- G09G3/3406—Control of illumination source
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- G—PHYSICS
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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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/30—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 grating
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application discloses a display panel and a display device, and relates to the technical field of display, wherein the display panel comprises an electric actuating shading component, the electric actuating shading component is arranged between adjacent pixel units in the display panel, a first end of the electric actuating shading component is connected with a first substrate and/or a second substrate, a second end of the electric actuating shading component is suspended, when the electric actuating shading component is not electrified, the electric actuating shading component is unfolded, and a second end of the electric actuating shading component is far away from the first end of the electric actuating shading component to form a grating; when the electrically actuated shade assembly is energized, the electrically actuated shade assembly is rolled up and the second end of the electrically actuated shade assembly moves in the direction of the first end of the electrically actuated shade assembly. By adopting the scheme, the peep-proof and peep-proof switch can be switched freely under two states, so that the requirements of users can be met.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
The liquid crystal display is a display device used in large scale at present, has a series of advantages of high color gamut, light weight, quick response time and the like, has mature technology in the aspects of theoretical research and actual process, can meet the requirement of conventional display, and also has a plurality of different display modes, such as transparent display, peep-proof display, double-vision display and the like.
Most of the existing peep-proof display technologies are fixed peep-proof display technologies, for example, a peep-proof film is added on an original display device, so that peep-proof display is realized. The current peep-proof display technology cannot be intelligently switched between two states of peep-proof and peep-proof, so that the requirements of users cannot be met better.
Disclosure of Invention
The purpose of this application is to provide a display panel and display device, can freely switch under peep-proof and not peep-proof two kinds of states to can satisfy user's demand.
The application discloses a display panel, which comprises a first substrate and a second substrate which are oppositely arranged, and further comprises an electrically-actuated shading component, wherein the electrically-actuated shading component is arranged between adjacent pixel units in the display panel, a first end of the electrically-actuated shading component is connected with the first substrate and/or the second substrate, and a second end of the electrically-actuated shading component is suspended; when the electrically actuated shade assembly is not energized, the electrically actuated shade assembly deploys, the second end of the electrically actuated shade assembly forming a grating away from the first end of the electrically actuated shade assembly; when the electrically actuated shade assembly is energized, the electrically actuated shade assembly is rolled up and the second end of the electrically actuated shade assembly moves in the direction of the first end of the electrically actuated shade assembly.
Optionally, the first end of the electrically-actuated light shielding component is connected with the first substrate, and when the electrically-actuated light shielding component is not electrified, the second end of the electrically-actuated light shielding component is abutted with the second substrate to form a grating; when the electrically actuated light shield assembly is energized, the second end of the electrically actuated light shield assembly moves in a direction perpendicular to the first substrate toward the first end of the electrically actuated light shield assembly, spacing the electrically actuated light shield assembly from the second substrate.
Optionally, the electrically actuated light shielding component includes a first material layer, a second material layer and a heating element, the first material layer is made of a light shielding material, the second material layer is made of a thermal expansion material, the first material layer is attached to the surface of the second material layer, and the heating element is connected with the second material layer and the conductive wires on the first substrate respectively; when the heating element is electrified, the heating element heats, the second material layer is heated and contracted, and the first material layer is driven to be wound; when the heating element is not electrified, the heating element does not generate heat, and the second material layer and the first material layer are in an unfolding state.
Optionally, the heating element is a linear structure, and the heating element is disposed around an edge of the second material layer.
Optionally, the first material layer is a light shielding coating sprayed on the second material layer.
Optionally, the electrically-actuated light shielding component includes a first material layer and a second material layer, the first material layer is made of a conductive light shielding material, the second material layer is made of a thermal expansion material, the first material layer is attached to the surface of the second material layer, and the first material layer is communicated with the conductive wires on the first substrate; when the first material layer is electrified, the first material layer heats, the second material layer is heated to shrink, and the first material layer is driven to be wound; when the first material layer is not electrified, the first material layer does not generate heat, and the second material layer and the first material layer are in an unfolding state.
Optionally, a groove is formed on one side, facing the first substrate, of the second substrate, and the groove is opposite to the electrically-actuated shading component; the electrically actuated shade assembly has a height greater than a spacing between the first and second substrates.
Optionally, the pixel unit is a single sub-pixel or a sub-pixel array.
Optionally, the first end of the electrically-actuated light shielding component is connected with the first substrate and the second substrate respectively, and when the electrically-actuated light shielding component is not electrified, the second end of the electrically-actuated light shielding component is unfolded to form a grating; when the electrically actuated shade assembly is energized, the second end of the electrically actuated shade assembly moves in a direction parallel to the first substrate toward the first end of the electrically actuated shade assembly.
The application also discloses a display device, which comprises a backlight module and the display panel, wherein the backlight module is used for providing backlight for the display panel.
According to the method, by utilizing the characteristic that the electric actuating shading component is electrified and rolled, when the display panel is required to be switched to the peep-proof state, the electrified state of the electric actuating shading component is disconnected, and the electric actuating shading component is unfolded to form a grating structure, so that light emitted by the pixel unit towards the side face of the display panel is blocked, and the peep-proof effect is achieved; when the display panel is required to be switched to a non-peeping state, the electric actuation shading component is powered on, and the electric actuation shading component is wound and contracted at the moment, so that light emitted by the pixel unit can irradiate the side surface of the display panel, and the non-peeping effect is realized. Because the display panel in this application can realize the free switching under peeping-proof and non-peeping-proof two kinds of states through electric actuation shading subassembly to can satisfy user's demand better.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive faculty for a person skilled in the art. In the drawings:
fig. 1 is a schematic diagram of a display device according to an embodiment of the present application;
fig. 2 is a schematic view of a first state of a display panel according to a first embodiment of the present application;
fig. 3 is a schematic view of a second state of a display panel according to the first embodiment of the present application;
FIG. 4 is a schematic view of one implementation of an electrically actuated shade assembly in a first embodiment of the present application;
FIG. 5 is a schematic view of a heater according to a first embodiment of the present application;
FIG. 6 is a schematic view of another implementation of an electrically actuated shade assembly in a first embodiment of the present application;
FIG. 7 is another schematic view of a display panel according to the first embodiment of the present application;
FIG. 8 is another schematic view of a display panel according to the first embodiment of the present application;
fig. 9 is a schematic view of a first state of a display panel according to a second embodiment of the present application;
fig. 10 is a schematic diagram of a second state of a display panel according to a second embodiment of the present application.
10, a display device; 100. a display panel; 110. a first substrate; 111. a conductive wire; 112. a baffle; 120. a second substrate; 121. a groove; 130. electrically actuated shade assembly; 131. a first end; 132. a second end; 133. a first material layer; 134. a second material layer; 135. a heating member; 140. a support column; 150. a pixel unit; 200. and a backlight module.
Detailed Description
It should be understood that the terminology, specific structural and functional details disclosed herein are merely representative for purposes of describing particular embodiments, but that the application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
Furthermore, unless expressly specified and limited otherwise, "connected" and "coupled" are to be construed broadly, and may be either permanently connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
The present application is further described below with reference to the accompanying drawings and alternative embodiments.
As shown in fig. 1, the embodiment of the application discloses a display device, wherein the display device 10 includes a backlight module 200 and a display panel 100, and the backlight module 200 provides backlight for the display panel 100. The display panel 100 is a liquid crystal panel, and the following specific embodiments are referred to for the detailed design of the display panel 100.
First embodiment
As shown in fig. 2 and 3, fig. 2 is a schematic view of a display panel when the electrically-actuated light shielding assembly is not energized, and fig. 3 is a schematic view of a display panel when the electrically-actuated light shielding assembly is energized, as a display panel provided in the first embodiment of the present application, the display panel 100 includes a first substrate 110 and a second substrate 120 disposed opposite to each other, the display panel 100 further includes an electrically-actuated light shielding assembly 130, and the electrically-actuated light shielding assembly 130 is disposed between adjacent pixel units 150 in the display panel 100; the first end 131 of the electrically-actuated shading component 130 is connected with the first substrate 110 and/or the second substrate 120, and the second end 132 of the electrically-actuated shading component 130 is suspended.
When the electrically actuated light shielding assembly 130 is not energized, the electrically actuated light shielding assembly 130 expands, the second end 132 of the electrically actuated light shielding assembly 130 forms a grating away from the first end 131 of the electrically actuated light shielding assembly 130, and the electrically actuated light shielding assembly 130 shields light irradiated to the side from the pixel cell 150. When the electrically-actuated shade assembly 130 is energized, the electrically-actuated shade assembly 130 is rolled up, the second end 132 of the electrically-actuated shade assembly 130 moves toward the first end 131 of the electrically-actuated shade assembly 130, and the light emitted from the pixel units 150 can be radiated to the side.
The electrically actuated light shielding assembly 130 may be directly exposed in the liquid crystal cell, or the electrically actuated light shielding assembly 130 may be disposed in a vacuum chamber that separates the electrically actuated light shielding assembly 130 from the liquid crystal in order to avoid the liquid crystal from obstructing the extension and retraction of the electrically actuated light shielding assembly 130.
According to the method, by utilizing the characteristic of electrifying and winding the electric actuation shading component 130, when the display panel 100 is required to be switched to the peep-proof state, the electrifying state of the electric actuation shading component 130 is disconnected, at the moment, the electric actuation shading component 130 is unfolded to form a grating structure, and light emitted by the pixel units 150 towards the side face of the display panel 100 is blocked, so that the peep-proof effect is realized; when the display panel 100 needs to be switched to the non-peeping state, the electric actuation shading component 130 is powered on, and at this time, the electric actuation shading component 130 is rolled and contracted to expose the gap between the two substrates, so that the light emitted by the pixel unit 150 can irradiate to the side surface of the display panel 100, thereby realizing the non-peeping effect. Since the display panel 100 in the present application can realize free switching in both the peep-proof and non-peep-proof states by electrically actuating the light shielding assembly 130, the requirements of users can be better satisfied.
In this embodiment, the working principle of the electrically-actuated light shielding assembly 130 is similar to that of a roller shutter door, specifically, the first end 131 of the electrically-actuated light shielding assembly 130 is connected to the first substrate 110, when the electrically-actuated light shielding assembly 130 is not energized, the second end 132 of the electrically-actuated light shielding assembly 130 abuts against the second substrate 120 to form a grating, and at this time, the light of the pixel unit 150 cannot be emitted through the gap between the second end 132 of the electrically-actuated light shielding assembly 130 and the second substrate 120, so that the display content cannot be seen from the side edge of the display panel 100. When the electrically-actuated light shielding assembly 130 is energized, the second end 132 of the electrically-actuated light shielding assembly 130 moves toward the first end 131 of the electrically-actuated light shielding assembly 130 along a direction perpendicular to the first substrate 110, so that a gap exists between the second end 132 of the electrically-actuated light shielding assembly 130 and the second substrate 120, and at this time, light emitted from the pixel unit 150 can be emitted through the gap between the second end 132 of the electrically-actuated light shielding assembly 130 and the second substrate 120, so that display content can be seen from the side of the display panel 100.
By adopting the design of the embodiment of the application, because the thickness of the display panel 100 is smaller, the distance between the first substrate 110 and the second substrate 120 is smaller, so that the switching between peep prevention and non-peep prevention can be realized only by slightly changing the electrically-actuated shading component 130 in the thickness direction of the display panel 100, the switching speed is high, and the switching effect is good. Moreover, since the electrically actuated light shielding member 130 is formed inside the display panel 100 between the first substrate and the 110 second substrate 120, the thickness of the display panel 100 is not increased.
The electrically actuated shading components 130 may be distributed on one side of each pixel unit 150, or may be distributed on two sides, three sides or four sides of each pixel unit 150, so as to implement a single-side peep-proof, a two-side peep-proof, a three-side peep-proof, or even a full peep-proof display mode, and the specific design is adjusted according to actual requirements. Moreover, when the electrically-actuated light-shielding components 130 are distributed on multiple sides of each pixel unit 150, the electrically-actuated light-shielding components 130 on each side can be separately controlled, so that the switching among single-side peep-prevention, two-side peep-prevention, three-side peep-prevention and full peep-prevention can be realized in the same display panel 100, thereby meeting various practical requirements. In addition, taking one side of the display panel 100 as an example, only one electrically-actuated light shielding component 130 is disposed on one side of each pixel unit 150, and the electrically-actuated light shielding component 130 can complete switching between the peep-proof state and the non-peep-proof state; the display panel 100 may also have a plurality of electrically actuated light shielding components 130 disposed on one side, and the plurality of electrically actuated light shielding components 130 work together, when the power is on, the plurality of electrically actuated light shielding components 130 are combined to form a retaining wall, blocking light from passing through, and improving the light blocking effect.
For the specific design of the electrically actuated shade assembly 130, the present examples provide the following two specific implementations.
As shown in fig. 4, as an embodiment of the electrically-actuated light shielding assembly, the electrically-actuated light shielding assembly 130 includes a first material layer 133, a second material layer 134 and a heating member 135, the first material layer 133 is made of a light shielding material, the second material layer 134 is made of a heat-expandable material, the first material layer 133 is attached to a surface of the second material layer 134, and the heating member 135 is connected to the second material layer 134 and the conductive line 111 on the first substrate 110, respectively; when the heating element 135 is electrified, the heating element 135 heats, the second material layer 134 is heated to shrink, and the first material layer 133 is driven to be wound; when the heating element 135 is not energized, the heating element 135 does not generate heat, and the second material layer 134 and the first material layer 133 are in an expanded state.
By adopting the design scheme of the embodiment, the thermal expansion material is easy to deform to a larger extent when heated due to the fact that the thermal expansion material is easy to deform, so that after the heating element 135 is electrified, the distance between the bottom of the second material layer 134 and the second substrate 120 is pulled apart to a larger extent, the blocking effect on light is further weakened, and the non-peeping-preventing state effect is better.
Specifically, the first material layer 133 is made of a black rubber material, that is, light blocking and deformation can be achieved, at this time, the first material layer 133 is adhered to the surface of the second material layer 134 in an adhering manner, and the contact surface between the first material layer 133 and the second material layer 134 is coated with an adhesive, so that the problem that the first material layer 133 is affected by heat of the second material layer 134 and is affected by deformation, and local falling between the first material layer 133 and the second material layer 134 is avoided.
Or, the first material layer 133 is a black paint, and the black paint is directly sprayed on the surface of the second material layer 134, so that the second material layer 134 is hardly affected by the gravity of the first material layer 133 when deformed, and thus the deformation is quicker, and the display panel 100 can switch between peep-proof and non-peep-proof states more quickly.
The second material layer 134 is a polymer material with a relatively large expansion coefficient, such as silicone rubber, polyimide, polydimethylsiloxane, nitrile rubber, etc., and the second material layer 134 is rapidly bent and deformed after being heated by the heating member 135.
The heating element 135 may be made of a general heat conductive metal, and the heating element 135 may be connected to only the top of the second material layer 134, may also cover the surface of the second material layer 134 away from the first material layer 133, or may be attached to other local areas of the second material layer 134.
Alternatively, as shown in fig. 5, the heating element 135 is in a wire-like structure, and after the heating element 135 is connected to the conductive wire 111 on the first substrate 110, the heating element is disposed around the edge of the second material layer 134. Because the heating element 135 adopts a heating wire, the area of the heating element 135 is smaller, and the electric quantity loss is reduced; moreover, the cross section of the heating wire is thin, and the bending of the second material layer 134 is not affected by the rigidity of the heating wire; in addition, the heating element 135 surrounds the edge of the second material layer 134, so that heat can be quickly transferred to the edge of the second material layer 134, and the edge of the second material layer 134 drives the inner portion to bend rapidly.
In this embodiment, the entire weight of the electrically-actuated light shielding assembly 130 may be borne by the heating element 135 only, and the electrically-actuated light shielding assembly 130 is connected to the first substrate 110 only through the heating element 135; alternatively, the entire weight of the electrically-actuated shading assembly 130 is borne by the heating element 135 and the second material layer 134, at this time, the second material layer 134 is fixed on the first substrate 110 by means of adhesion, clamping, etc., and the heating element 135 is connected to the conductive wire 111 of the first substrate 110 by means of welding; alternatively, the weight of the whole electrically-actuated light shielding assembly 130 is borne by the heating element 135, the first material layer 133 and the second material layer 134 at the same time, and at this time, the first material layer 133 and the second material layer 134 are fixed on the first substrate 110 by means of adhesion, clamping or the like, and the heating element 135 is connected to the conductive wire 111 of the first substrate 110 by means of welding.
As shown in fig. 6, as another embodiment of the electrically-actuated light shielding assembly, the electrically-actuated light shielding assembly 130 includes a first material layer 133 and a second material layer 134, the first material layer 133 is made of a conductive light shielding material, the second material layer 134 is made of a thermally-expansive material, the first material layer 133 is adhered to the surface of the second material layer 134 by bonding, and the first material layer 133 is in communication with the conductive wires 111 on the first substrate 110; when the first material layer 133 is electrified, the first material layer 133 heats up, and the second material layer 134 contracts when heated and drives the first material layer 133 to wind up; when the first material layer 133 is not energized, the first material layer 133 does not generate heat, and the second material layer 134 and the first material layer 133 are in an expanded state.
By adopting the scheme design of the embodiment, the first material layer 133 can serve as a heating structure and a shading structure, and is integrated into a whole, so that the design of the electrically-actuated shading component 130 is simplified; and the first material layer 133 and the second material layer 134 are completely attached, the first material layer 133 can heat the front surface of the second material layer 134, so that the second material layer 134 is good in heating effect and larger in bending deformation degree.
Specifically, the first material layer 133 is a conductive light-shielding micro-nano material such as graphene, carbon nanotube, carbon black, etc., so that the deformation of the second material layer 134 is not affected while the effects of energizing, heating and shielding light are achieved. The second material layer 134 is made of a polymer material having a relatively high expansion coefficient, such as silicone rubber, polyimide, polydimethylsiloxane, nitrile rubber, and the like.
In this embodiment, the first material layer 133 is disposed on a side of the second material layer 134 facing away from the display area. At this time, when the display panel 100 is in the peep-proof state, even if the display area emits stronger light, the light emitted by the display area is weakened by the second material layer 134, and even if the first material layer 133 is thinner, the light-transmitting problem will not occur, thereby ensuring the peep-proof effect.
In this embodiment of the present application, the heating structure in the electrically-actuated light shielding component 130 is disposed on a side of the second material layer 134 away from the display area, at this time, the second material layer 134 bends towards a direction away from the display area when heated, so as to reduce the blocking area of the bending deformation of the first material layer 133 and the second material layer 134 to light, and thus, the display effect is better in a non-peeping state.
In this embodiment, the thickness of the second material layer 134 is greater than that of the first material layer 133, and when the second material layer 134 is heated, a larger deformation force can be generated per unit area due to the larger thickness, so that the second material layer can be bent to a larger extent.
As shown in fig. 7, in this embodiment, a groove 121 is disposed on a side of the second substrate 120 facing the first substrate 110, and the groove 121 is disposed opposite to the electrically-actuated light shielding component 130; the height of the electrically actuated shading assembly 130 is greater than the spacing between the first substrate 110 and the second substrate 120. At this time, when the electrically-actuated light shielding component 130 is not energized, the second end 132 of the electrically-actuated light shielding component 130 can penetrate into the groove 121, so as to prevent light from penetrating through the gap between the second end 132 of the electrically-actuated light shielding component 130 and the second substrate 120, thereby affecting the peep-proof effect.
Further, the bottom of the groove 121 is a slope, and the upward inclination direction of the slope is the same as the bending and rolling direction of the electrically-actuated shading assembly 130 when being electrified. At this time, when the electrically-actuated shade assembly 130 is powered off, the second end 132 of the electrically-actuated shade assembly 130 is unfolded downward, and when the second end 132 of the electrically-actuated shade assembly 130 falls into the groove 121, the slope at the bottom of the groove 121 can guide the second end 132 of the electrically-actuated shade assembly 130 to fall directly below; next, the grooves 121 may be formed by fabricating a passivation layer, a planarization layer, so that the grooves 121 can also block the alignment liquid from overflowing when the alignment liquid is applied.
As shown in fig. 8, in the embodiment of the present application, a baffle 112 is disposed on the first substrate 110, and the baffle 112 abuts against the first end 131 of the electrically-actuated light shielding component 130. Thus, when the display device 10 rotates, the baffle 112 can support the electrically-actuated shading component 130, so as to prevent the electrically-actuated shading component 130 from sagging, and influence the peep-proof effect.
In addition, in the present embodiment, the pixel unit 150 may represent one sub-pixel, and the electrically actuated light shielding component 130 is disposed between two adjacent sub-pixels; therefore, when the peep-proof state is switched, the peep-proof effect is good.
Alternatively, each pixel unit 150 may represent a plurality of sub-pixels arranged in an array, in which case a plurality of sub-pixels are spaced between two adjacent electrically actuated light shielding members 130. This approach effectively reduces the number of electrically actuated light shielding assemblies 130 in the display panel 100, facilitating design and fabrication; also, since the electrically actuated light blocking assembly 130 blocks light, it is also possible to avoid a decrease in the aperture ratio of the display panel 100 by reducing the number of electrically actuated light blocking assemblies 130.
Second embodiment
As shown in fig. 9 and 10, fig. 9 is a schematic view of the display panel when the electrically-actuated light shielding assembly is not energized, fig. 10 is a schematic view of the display panel when the electrically-actuated light shielding assembly is energized, and L in the drawing represents the length of the electrically-actuated light shielding assembly 130. As a display panel provided in the second embodiment of the present application, a difference from the first embodiment is that the electrically actuated light shielding assembly 130 in the embodiment of the present application adopts a movement similar to that of a tension door. Specifically, the first end 131 of the electrically-actuated light shielding component 130 is connected to the first substrate 110 and the second substrate 120, respectively, and when the electrically-actuated light shielding component 130 is not energized, the second end 132 of the electrically-actuated light shielding component 130 is unfolded to form a grating; when the electrically actuated shade assembly 130 is energized, the second end 132 of the electrically actuated shade assembly 130 moves toward the first end 131 of the electrically actuated shade assembly 130 in a direction parallel to the first substrate 110.
In the embodiment of the present application, after the electrically-actuated shading component 130 is not electrified and rolled, a structure similar to a support column is formed, so that the two substrates can be supported, and the blocking area of the light effect is further reduced.
Further, the first end 131 of the electrically-actuated light shielding component 130 may be fixed on the support column 140 in the display panel 100 at the same time, so as to improve the stability of the first end 131 of the electrically-actuated light shielding component 130.
In addition, the inventive concept of the present application may form a very large number of embodiments, but the application documents are limited in size and cannot be listed one by one, so that, on the premise of no conflict, new examples can be formed between the above-described embodiments or between the technical features, and after the embodiments or the technical features are combined, the original technical effects will be enhanced.
The foregoing is a further detailed description of the present application in connection with specific alternative embodiments, and it is not intended that the practice of the present application be limited to such descriptions. It should be understood that those skilled in the art to which the present application pertains may make several simple deductions or substitutions without departing from the spirit of the present application, and all such deductions or substitutions should be considered to be within the scope of the present application.
Claims (10)
1. A display panel comprising a first substrate and a second substrate disposed opposite to each other, the display panel further comprising:
the first end of the electric actuating shading component is connected with the first substrate and/or the second substrate, and the second end of the electric actuating shading component is suspended;
when the electrically actuated shade assembly is not energized, the electrically actuated shade assembly deploys, the second end of the electrically actuated shade assembly forming a grating away from the first end of the electrically actuated shade assembly; when the electrically actuated shade assembly is energized, the electrically actuated shade assembly is rolled up and the second end of the electrically actuated shade assembly moves in the direction of the first end of the electrically actuated shade assembly.
2. The display panel of claim 1, wherein a first end of the electrically actuated light shield assembly is connected to the first substrate, and a second end of the electrically actuated light shield assembly abuts the second substrate to form a grating when the electrically actuated light shield assembly is not energized; when the electrically actuated light shield assembly is energized, the second end of the electrically actuated light shield assembly moves in a direction perpendicular to the first substrate toward the first end of the electrically actuated light shield assembly, spacing the electrically actuated light shield assembly from the second substrate.
3. The display panel of claim 2, wherein the electrically actuated light shielding assembly comprises a first material layer, a second material layer and a heating member, the first material layer is made of a light shielding material, the second material layer is made of a heat expansion material, the first material layer is attached to a surface of the second material layer, and the heating member is connected to the second material layer and the conductive lines on the first substrate, respectively;
when the heating element is electrified, the heating element heats, the second material layer is heated and contracted, and the first material layer is driven to be wound; when the heating element is not electrified, the heating element does not generate heat, and the second material layer and the first material layer are in an unfolding state.
4. A display panel as claimed in claim 3, characterized in that the heating element is a wire-like structure and is arranged around the edge of the second material layer.
5. The display panel of claim 3, wherein the first material layer is a light shielding coating sprayed on the second material layer.
6. The display panel of claim 2, wherein the electrically actuated light shielding assembly comprises a first material layer and a second material layer, the first material layer is composed of a conductive light shielding material, the second material layer is composed of a thermally expansive material, the first material layer is attached to a surface of the second material layer, and the first material layer is in communication with the conductive lines on the first substrate;
when the first material layer is electrified, the first material layer heats, the second material layer is heated to shrink, and the first material layer is driven to be wound; when the first material layer is not electrified, the first material layer does not generate heat, and the second material layer and the first material layer are in an unfolding state.
7. The display panel of claim 2, wherein a groove is formed in the second substrate on a side facing the first substrate, the groove being disposed opposite the electrically actuated light shielding assembly;
the electrically actuated shade assembly has a height greater than a spacing between the first and second substrates.
8. The display panel of claim 1, wherein the pixel unit is a single subpixel or an array of subpixels.
9. The display panel of claim 1, wherein a first end of the electrically actuated light shield assembly is connected to the first substrate and the second substrate, respectively, and a second end of the electrically actuated light shield assembly expands to form a grating when the electrically actuated light shield assembly is not energized; when the electrically actuated shade assembly is energized, the second end of the electrically actuated shade assembly moves in a direction parallel to the first substrate toward the first end of the electrically actuated shade assembly.
10. A display device comprising a backlight module and a display panel according to any one of claims 1-9, the backlight module providing backlight for the display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310636648.7A CN116560137A (en) | 2023-05-31 | 2023-05-31 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310636648.7A CN116560137A (en) | 2023-05-31 | 2023-05-31 | Display panel and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116867323A (en) * | 2023-09-05 | 2023-10-10 | 惠科股份有限公司 | Display panel and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116867323A (en) * | 2023-09-05 | 2023-10-10 | 惠科股份有限公司 | Display panel and display device |
| CN116867323B (en) * | 2023-09-05 | 2024-01-09 | 惠科股份有限公司 | Display panel and display device |
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