CN116437724B - Display panel and display device - Google Patents
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- CN116437724B CN116437724B CN202310361499.8A CN202310361499A CN116437724B CN 116437724 B CN116437724 B CN 116437724B CN 202310361499 A CN202310361499 A CN 202310361499A CN 116437724 B CN116437724 B CN 116437724B
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- 239000000758 substrate Substances 0.000 claims abstract description 54
- 208000008918 voyeurism Diseases 0.000 claims abstract description 21
- 230000000903 blocking effect Effects 0.000 claims description 20
- 239000011159 matrix material Substances 0.000 claims description 17
- 238000005538 encapsulation Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 157
- 244000144985 peep Species 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 230000002265 prevention Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 244000089409 Erythrina poeppigiana Species 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 235000009776 Rathbunia alamosensis Nutrition 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
- H10K59/877—Arrangements for extracting light from the devices comprising scattering means
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- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application belongs to the field of display, and particularly relates to a display panel and a display device, wherein the display panel comprises a substrate, a driving circuit layer, a pixel structure layer and a transparent structure layer, wherein the driving circuit layer, the pixel structure layer and the transparent structure layer are formed on one side of the substrate, the pixel structure layer comprises a plurality of pixel units, at least part of the pixel units comprise a plurality of display sub-pixels and at least one peeping-proof sub-pixel, the display sub-pixels and the peeping-proof sub-pixels are connected with the driving circuit layer, the transparent structure layer comprises a plurality of grooves, the grooves are formed on one side, far away from the substrate, of the transparent structure layer, orthographic projection of the peeping-proof sub-pixels on the transparent structure layer is positioned in the grooves, and the grooves are used for diffusing light rays of the peeping-proof sub-pixels to the grooves. Compared with the peep-proof film, the peep-proof sub-pixel has the advantages that light rays are not shielded and absorbed, and the problem that the brightness of a display panel is reduced due to the use of the peep-proof film is solved.
Description
Technical Field
The application belongs to the field of display, and particularly relates to a display panel and a display device.
Background
The wider viewing angle of the display panel may provide a better visual experience to the user, but sometimes the user also desires that the viewing angle of the display panel be adjustable to a small angle, thereby effectively protecting business confidentiality and personal privacy. The existing peep-proof display panel can only be torn away from the peep-proof film when the peep-proof film is not needed, and the peep-proof function is inconvenient to switch. The principle of the peep-proof film is equivalent to that of a shutter, when the visual angle exceeds a certain angle, the display content of the display panel can be blocked by the baffle plate, the peep-proof purpose is achieved, but the brightness of the display panel using the peep-proof film can be reduced.
Disclosure of Invention
The application aims to provide a display panel and a display device, which are used for solving the problem that the brightness of the display panel is reduced due to the use of a peep-proof film.
In order to achieve the above object, the present application provides a display panel including a substrate base plate and a driving circuit layer formed at one side of the substrate base plate, the display panel further comprising:
the pixel structure layer is formed on one side, far away from the substrate base plate, of the driving circuit layer, the pixel structure layer comprises a plurality of pixel units, at least part of the pixel units comprise a plurality of display sub-pixels and at least one peeping-prevention sub-pixel, and the display sub-pixels and the peeping-prevention sub-pixels are connected with the driving circuit layer;
The transparent structure layer is formed on one side, far away from the substrate, of the pixel structure layer, the transparent structure layer comprises a plurality of grooves, the grooves are formed in one side, far away from the substrate, of the transparent structure layer, the orthographic projection of the peep-proof sub-pixels on the transparent structure layer is located in the grooves, and the grooves are used for diffusing light rays of the peep-proof sub-pixels, which are shot to the grooves.
Optionally, the groove comprises a groove bottom and a groove side surrounding the groove bottom, and the groove side is used for diffusing light rays of the peep-proof sub-pixels to the groove.
Optionally, the display panel further includes a light shielding layer, the light shielding layer includes a plurality of light shielding units, and the light shielding units are disposed at the bottom of the groove.
Optionally, the inner cavity of the groove is a rectangular pyramid, and the bottom of the groove is the vertex of the rectangular pyramid.
Optionally, the pixel units are arranged in an array in a row direction and a column direction, and the groove has four groove sides, wherein two groove sides are arranged in the row direction, and the other two groove sides are arranged in the column direction.
Optionally, the inner cavity of the groove is a triangular prism, the bottom of the groove is an edge of the triangular pyramid, the pixel units are arranged in an array manner in the row direction and the column direction, and two groove side surfaces of the groove are side surfaces of the triangular prism and are arranged in the row direction.
Optionally, the display panel further includes a planarization layer, where the planarization layer is formed on a side of the transparent structural layer away from the substrate, and a refractive index of the transparent structural layer is greater than a refractive index of the planarization layer.
Optionally, the pixel structure layer includes an anode layer, a pixel definition layer, a light emitting layer and a cathode layer, the light emitting layer includes a plurality of display light emitting parts and a plurality of peeping prevention light emitting parts, the display sub-pixel includes the display light emitting parts, the peeping prevention sub-pixel includes the peeping prevention light emitting parts, the anode layer is formed on a side, far away from the substrate, of the driving circuit layer, the pixel definition layer is formed on a side, far away from the substrate, of the anode layer, the light emitting layer is formed on a side, defining an area, of the pixel definition layer, the cathode layer is formed on a side, far away from the substrate, of the light emitting layer, the display panel further includes a packaging layer, the packaging layer is formed on a side, far away from the substrate, of the cathode layer, and the transparent structure layer is located on a side, far away from the substrate.
Optionally, the display panel further includes a color blocking layer and a black matrix, the color blocking layer is formed on one side of the transparent structural layer away from the substrate, the plurality of display light emitting portions includes a red display light emitting portion, a green display light emitting portion and a blue display light emitting portion, the color blocking layer includes a red color blocking layer, a green color blocking layer and a blue color blocking layer, the orthographic projection of the red display light emitting portion on the color blocking layer is located in the red color blocking layer, the orthographic projection of the green display light emitting portion on the color blocking layer is located in the blue color blocking layer, the black matrix is located between adjacent display light emitting portions and between the peep-proof light emitting portions, and the peep-proof light emitting portions and the black matrix form a space.
The present application also provides a display device including:
the display panel;
And the main board is connected with the display panel.
The display panel and the display device disclosed by the application have the following beneficial effects:
In this embodiment, the display panel includes a substrate, and a driving circuit layer, a pixel structure layer and a transparent structure layer formed on the substrate in sequence, where the pixel structure layer includes a plurality of pixel units, the pixel units include a plurality of display sub-pixels and at least one peep-proof sub-pixel, the driving circuit layer is used to drive the display sub-pixels and the peep-proof sub-pixels to emit light, the transparent structure layer includes a plurality of grooves, the grooves are formed on one side of the transparent structure layer away from the substrate, the peep-proof sub-pixels are orthographic projected on the transparent structure layer and located in the grooves, the grooves are used to diffuse light rays of the peep-proof sub-pixels to the grooves, so that light rays of the peep-proof sub-pixels and oblique light rays of the display sub-pixels are mixed to realize peep-proof.
Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.
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 application and together with the description, serve to explain the principles of the application. It is evident 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 effort for a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the application.
Fig. 2 is a schematic view of a display panel according to a first embodiment of the present application.
Fig. 3 is a schematic view of a peep-proof angle of a display panel according to a first embodiment of the application.
Fig. 4 is a schematic plan view of a pixel unit according to an embodiment of the application.
Fig. 5 is a schematic structural diagram of a display panel according to a second embodiment of the application.
Fig. 6 is a schematic structural diagram of a display device according to a third embodiment of the present application.
Reference numerals illustrate:
100. a substrate base; 200. a driving circuit layer;
310. An anode layer; 311. a first anode; 312. a second anode; 320. a pixel definition layer; 330. a light emitting layer; 331. a display light emitting section; 332. a peep-proof light-emitting part; 340. a cathode layer; 350. an encapsulation layer; 360. a transparent structural layer; 361. a groove side; 362. a groove bottom; 370. a light shielding layer; 371. a light shielding unit; 372. a black matrix; 380. a color resist layer; 390. a flat layer;
10. a display panel; 20. and a main board.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
The application will be described in further detail with reference to the drawings and the specific examples. It should be noted that the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
Example 1
Referring to fig. 1 and 2, the display panel in this embodiment includes a substrate 100, a driving circuit layer 200, a pixel structure layer and a transparent structure layer 360, wherein the driving circuit layer 200 is formed on a side of the substrate 100, the pixel structure layer is formed on a side of the driving circuit layer 200 away from the substrate 100, and the transparent structure layer 360 is formed on a side of the pixel structure layer away from the substrate 100. The substrate 100 may include a glass substrate and a polyimide (Pi) substrate.
The pixel structure layer includes a plurality of pixel units, each pixel unit includes a plurality of display sub-pixels and at least one peep-proof sub-pixel, and the display sub-pixels and the peep-proof sub-pixels are connected with the driving circuit layer 200. The driving circuit layer 200 includes a pixel driving circuit for driving the display sub-pixel and the peep-proof sub-pixel to emit light.
The transparent structure layer 360 includes a plurality of grooves, the grooves are formed on one side of the transparent structure layer 360 away from the substrate 100, the orthographic projection of the peep-proof sub-pixels on the transparent structure layer 360 is located in the grooves, and the grooves are used for diffusing light rays of the peep-proof sub-pixels to the grooves.
The display panel has a wide viewing angle display mode and a peep-proof mode. In the wide-view angle display mode, the peep-proof sub-pixel is closed, and the display sub-pixel can normally display; in the peep-proof mode, the peep-proof sub-pixel is started, the forward light of the peep-proof sub-pixel is refracted into oblique light by the groove and mixed with the oblique light of the display sub-pixel, and the forward light of the display sub-pixel is not interfered.
It should be noted that, the pixel structure layer includes a plurality of pixel units, each pixel unit includes a plurality of display sub-pixels and at least one peep-proof sub-pixel, but not limited thereto, a portion of the pixel units may also be configured to include a plurality of display sub-pixels and at least one peep-proof sub-pixel, and a portion of the pixel units may include a plurality of display sub-pixels and not include a peep-proof sub-pixel, where the specific situation may be determined.
In this embodiment, the display panel includes a substrate 100, and a driving circuit layer 200, a pixel structure layer and a transparent structure layer 360 sequentially formed on the substrate 100, where the pixel structure layer includes a plurality of pixel units, the pixel units include a plurality of display sub-pixels and at least one peep-proof sub-pixel, the driving circuit layer 200 is used to drive the display sub-pixels and the peep-proof sub-pixels to emit light, the transparent structure layer 360 includes a plurality of grooves, the grooves are formed on a side of the transparent structure layer 360 far away from the substrate 100, the peep-proof sub-pixels are located in the grooves in orthographic projection of the transparent structure layer 360, and the grooves are used to diffuse light of the peep-proof sub-pixels to the grooves, so that the light of the peep-proof sub-pixels and the oblique light of the display sub-pixels mix to realize peep-proof.
Referring to fig. 1 and 2, the pixel structure layer includes an anode layer 310, a pixel definition layer 320, a light emitting layer 330, and a cathode layer 340, the anode layer 310 is formed on a side of the driving circuit layer 200 away from the substrate 100, the pixel definition layer 320 is formed on a side of the anode layer 310 away from the substrate 100, the light emitting layer 330 is formed on a side of the anode layer 310 where the pixel definition layer 320 defines a region, and the cathode layer 340 is formed on a side of the light emitting layer 330 away from the substrate 100.
The display panel further includes an encapsulation layer 350, wherein the encapsulation layer 350 is formed on the side of the cathode layer 340 away from the substrate 100, and the transparent structure layer 360 is located on the side of the encapsulation layer 350 away from the substrate 100. The light emitting layer 330 includes a plurality of display light emitting portions 331 and a plurality of peep preventing light emitting portions 332, the display sub-pixel includes the display light emitting portions 331, and the peep preventing sub-pixel includes the peep preventing light emitting portions 332. That is, the display panel is an OLED display panel.
It should be noted that the display panel may be an OLED display panel, but not limited thereto, and the display panel may also be a liquid crystal display panel, as the case may be.
The display panel is an OLED display panel, and the OLED display panel does not need a backlight source, has the advantages of being flexible, thin in thickness, high in brightness, low in power consumption, fast in response, wide in color gamut and the like, and can be widely used in electronic products such as televisions, mobile phones and notebooks.
Referring to fig. 1 and 2, the anode layer 310 includes a first anode 311 and a second anode 312, and the display light emitting part 331 is connected to the first anode 311 and the peep preventing light emitting part 332 is connected to the second anode 312. The adjacent first anodes 311 and the second anodes 312 are arranged at intervals, the adjacent two first anodes 311 are arranged at intervals, and the adjacent two second anodes 312 are arranged at intervals.
When two adjacent second anodes 312 are arranged at intervals, each peep-proof luminous part 332 can be independently opened or closed, so that the display panel can realize partitioned peep prevention, namely, the peep prevention is opened in a part of the area of the display panel, and the peep prevention is closed in a part of the area of the display panel.
It should be noted that, although the adjacent two second anodes 312 may be disposed at intervals, the present invention is not limited thereto, and the adjacent two second anodes 312 may be connected, as the case may be. When two adjacent second anodes 312 are connected, all the peep-proof light emitting portions 332 can be turned on or off at the same time, so that the design can simplify the pixel driving circuit structure of the driving circuit layer 200 and reduce the manufacturing cost of the display panel.
Referring to fig. 1 and 2, the pixel defining layer 320 includes a display pixel opening and a peep-proof pixel opening, the display light emitting portion 331 is at least partially located in the display pixel opening, and the peep-proof light emitting portion 332 is at least partially located in the peep-proof pixel opening. The anode layer 310 includes a first anode 311 and a second anode 312, the display light emitting portion 331 is connected to the first anode 311, and the peep-proof light emitting portion 332 is connected to the second anode 312.
The display light emitting portion 331 is at least partially located in the display pixel opening, the peep-proof light emitting portion 332 is at least partially located in the peep-proof pixel opening, and the first anode 311 and the second anode 312 can be disposed on the same structural layer, so that the manufacturing cost of the display panel is reduced.
Note that, the peep-proof light emitting portion 332 may be disposed at the peep-proof pixel opening, the peep-proof light emitting portion 332 is connected to the second anode 312, but not limited thereto, the pixel defining layer 320 may not be disposed at the peep-proof pixel opening, the second anode 312 may also be directly disposed between adjacent display pixel openings on a side of the pixel defining layer 320 far from the substrate 100, and the peep-proof light emitting portion 332 is disposed on the second anode 312, as the case may be.
The peep-proof light emitting part 332 is disposed in the region between the display pixel openings, so that the design space of the display light emitting part 331 is not affected, and the display panel aperture ratio is not lost compared with a display panel without the peep-proof light emitting part 332.
Referring to fig. 1 and 2, the groove includes a groove bottom 362 and a groove side 361 surrounding the groove bottom 362, and the groove side 361 is used to diffuse light emitted from the privacy light emitting portion 332 toward the groove. The groove side 361 may be a slope or a convex arc, and the groove bottom 362 may be a point, a line, a smaller plane, etc., as the case may be.
The groove comprises a groove bottom 362 and a groove side 361 surrounding the groove bottom 362, the groove side 361 is an inclined plane or a raised cambered surface, light rays emitted to the groove side 361 by the peep-proof luminous part 332 are outwards refracted, and then all forward light rays of the peep-proof luminous part 332 are refracted into oblique light rays, and the light rays of the peep-proof luminous part 332 and the oblique light rays of the display luminous part 331 are mixed, so that peep-proof can be realized.
Referring to fig. 1 and 2, the display panel further includes a light shielding layer 370, and the light shielding layer 370 includes a plurality of light shielding units 371, the light shielding units 371 being disposed at the groove bottom 362.
The bottom 362 may be a point, a line or a smaller plane, and when the bottom 362 is a point or a line, the bottom 362 may be provided with a light shielding unit 371 for shielding, and the light shielding unit 371 may be omitted, as the case may be. Since the groove bottom portion 362 is small, even if the light shielding means 371 is not provided for shielding, almost no light is emitted from the groove bottom portion 362, and almost no influence is exerted on the light of the display light emitting portion 331. When the bottom 362 is a smaller plane, the bottom 362 may be provided with the light shielding unit 371, so that the light emitted from the peep-proof light emitting part 332 to the bottom 362 is shielded and absorbed by the light shielding unit 371 made of black light absorbing material, even if the light is not refracted into oblique light, and the normal display of the display light emitting part 331 is not affected.
Illustratively, the interior cavity of the recess is a rectangular pyramid and the bottom 362 of the recess is the apex of the rectangular pyramid. The cavity of the groove may be rectangular pyramid, i.e. the groove side 361 is four inclined surfaces. As shown in fig. 2, the incident angle of the light beam from the outer side of the peep preventing light emitting part 332 to the bottom 362 of the groove is a, the incident angle of the light beam from the other part of the peep preventing light emitting part 332 to the bottom 362 of the groove is larger than a, and the incident angle of the light beam from the other part of the peep preventing light emitting part 332 to the other part of the side 361 of the groove is also larger than a. Light rays emitted to the bottom 362 of the groove from the outer side of the peep-proof light-emitting part 332 are refracted by the transparent structure layer 360 and then emitted from the side 361 of the groove, wherein the refraction angle is b, and the offset angle corresponding to the display panel is c;
c＝arcsin((n2/n1)×sina)-θ；
Where n1 is the refractive index of the transparent structural layer 360, n2 is the refractive index of the air or the display structural layer on the transparent structural layer 360, and θ is the inclination angle of the inclined plane with respect to the display panel.
Referring to fig. 3, the minimum peep-proof angle of the display panel is c, and when the viewing angle d of the human eye is larger than the angle c, the observed picture is interfered by the peep-proof light emitting portion 332, and the display picture cannot be seen clearly.
It should be noted that, the inner cavity of the groove may be a rectangular pyramid, but not limited thereto, and the inner cavity of the groove may also be a hexagonal pyramid, an eight pyramid, etc., as the case may be.
Referring to fig. 1 and 4, the pixel cells are arranged in an array in a row direction and a column direction, and the groove has four groove sides 361, two of which 361 are arranged in the row direction and the other two of which 361 are arranged in the column direction.
The groove has four groove side surfaces 361, of which two groove side surfaces 361 are arranged in the row direction and the other two groove side surfaces 361 are arranged in the column direction. For products such as mobile phones and flat plates, the anti-peeping effect is good in the up-down direction, and the light rays of the anti-peeping light-emitting part 332 are refracted to the up-down, left-right directions, so that peeping in all directions can be prevented.
In some embodiments, the cavity of the groove may also be a triangular prism, and the bottom 362 of the groove is an edge of the triangular pyramid. The pixel units are arranged in an array in the row direction and the column direction, and two groove side surfaces 361 of the groove are side surfaces of a triangular prism and are arranged in the row direction.
Products such as displays and notebooks are difficult to peep from up and down, and generally have good peep-proof effects only in the left and right directions. The inner cavity of the groove may be a triangular prism, the bottom 362 of the groove is an edge of the triangular pyramid, the two groove sides 361 of the groove are sides of the triangular prism and are arranged in the row direction, and the light of the peep-proof light-emitting part 332 may be refracted to two sides in the row direction, so that peeping in the left-right direction can be prevented. The inner cavity of the groove is a triangular prism, so that the inner cavity structure of the groove is simpler and easier to manufacture.
As shown in fig. 4, each pixel unit includes three display light emitting portions 331 and two peep-proof light emitting portions 332, and the three display sub-pixels 331 are a red display light emitting portion 331 (R), a green display light emitting portion 331 (G), and a blue display light emitting portion 331 (B) to perform RGB display. The red display light-emitting part 331, the green display light-emitting part 331 and the blue display light-emitting part 331 are sequentially arranged in the row direction, the lengths of the red display light-emitting part 331 and the green display light-emitting part 331 are smaller than those of the blue display light-emitting part 331, and a peep-proof light-emitting part 332 is arranged above each of the red display light-emitting part 331 and the green display light-emitting part 331.
The red display light emitting part 331 is made of an organic light emitting material emitting red light, the green display light emitting part 331 is made of an organic light emitting material emitting green light, the blue display light emitting part 331 is made of an organic light emitting material emitting blue light, the organic light emitting material emitting blue light has low efficiency and life, the organic light emitting material emitting red light and green light is low in pressure, the lengths of the red display light emitting part 331 and the green display light emitting part 331 are smaller than the length of the blue display light emitting part 331, and the design can give consideration to the brightness and the life of the red display light emitting part 331, the green display light emitting part 331 and the blue display light emitting part 331 of the display panel.
Example two
The difference between the second embodiment and the first embodiment is that the display panel in the second embodiment further includes a color resist layer 380 and a black matrix 372.
Referring to fig. 5, the display panel further includes a color resist layer 380 and a black matrix 372, the color resist layer 380 being formed on a side of the transparent structural layer 360 remote from the substrate 100. The plurality of display light emitting portions 331 include red display light emitting portions 331, green display light emitting portions 331, and blue display light emitting portions 331, the color block layer 380 includes red color block, green color block, and blue color block, the orthographic projection of the red display light emitting portions 331 on the color block layer 380 is located in the red color block, the orthographic projection of the green display light emitting portions 331 on the color block layer 380 is located in the green color block, the orthographic projection of the blue display light emitting portions 331 on the color block layer 380 is located in the blue color block, the black matrix 372 is located between adjacent display light emitting portions 331 and the peep-proof light emitting portions 332, and the peep-proof light emitting portions 332 and the black matrix 372 form an interval.
In order to improve the contrast ratio of the display device and realize an integral black effect, the OLED display panel generally adopts a polarizer, which can effectively reduce the reflection intensity of external ambient light on a screen. However, the light transmittance of the polarizer is generally only about 44%, and more power consumption is required to achieve higher light-emitting brightness. In addition, the polaroid has larger thickness and crisp material, and is not beneficial to the development of dynamic bending products.
In this embodiment, the display panel includes the color resist layer 380 and the black matrix 372, the black matrix 372 can absorb light, the color resist layer 380 can filter the light emitted by the display light emitting portion 331 and the external ambient light, the polarizer of the OLED display panel can be omitted, the thickness of the functional layer can be greatly reduced, the light emitting rate can be improved from 44% to 80%, and the light emitting brightness can be greatly increased, so that the power consumption of the OLED display panel can be reduced.
The peep-proof light-emitting part 332 can be made of red, green or blue organic light-emitting materials, so that the color resistance layer 380 can also filter the light of the peep-proof light-emitting part 332, and the light of the peep-proof light-emitting part 332 is prevented from being reflected to the area where the display light-emitting part 331 is located, and the normal display of the display light-emitting part 331 is prevented from being influenced.
It should be noted that, the peep-proof light-emitting portion 332 may also be made of a material that emits white light or yellow light, so as to obtain a better peep-proof effect, which may be specific according to the situation.
When the display panel includes the black matrix 372, the black matrix 372 may be disposed in the same layer as the light shielding unit 371.
The black matrix 372 and the light shielding unit 371 are arranged on the same layer, so that the manufacturing cost of the display panel can be reduced.
Referring to fig. 5, the display panel further includes a planarization layer 390, and the planarization layer 390 is formed on a side of the transparent structure layer 360 remote from the substrate 100. When the display panel includes the color resist layer 380 and the black matrix 372, the planarization layer 390 may be disposed at a side of the color resist layer 380 remote from the substrate 100. The refractive index of the transparent structural layer 360 is greater than that of the planarization layer 390.
The refractive index of the transparent structure layer 360 is greater than that of the flat layer 390, so that the incident angle of the light of the peep-proof light-emitting portion 332 on the transparent structure layer 360 is smaller than the emergent angle of the light of the flat layer 390, so that more light of the peep-proof light-emitting portion 332 can emerge from the grooves. Meanwhile, the planarization layer 390 may planarize the color resist layer 380 and the black matrix 372.
Example III
Referring to fig. 6, the display device in this embodiment includes a display panel 10 and a main board 20, the main board 20 is connected to the display panel 10, and the display panel 10 includes the display panels disclosed in the first and second embodiments.
The display device comprises a display panel 10, the display panel 10 comprises a substrate 100, a driving circuit layer 200, a pixel structure layer and a transparent structure layer 360, wherein the driving circuit layer 200, the pixel structure layer and the transparent structure layer 360 are sequentially formed on the substrate 100, the pixel structure layer comprises a plurality of pixel units, each pixel unit comprises a plurality of display sub-pixels and at least one peeping-prevention sub-pixel, the driving circuit layer 200 is used for driving the display sub-pixels and the peeping-prevention sub-pixels to emit light, the transparent structure layer 360 comprises a plurality of grooves, the grooves are formed on one side, far away from the substrate 100, of the transparent structure layer 360, the peeping-prevention sub-pixels are positioned in the grooves in an orthographic mode, and the grooves are used for diffusing light rays of the peeping-prevention sub-pixels to the grooves, so that the light rays of the peeping-prevention sub-pixels and the oblique light rays of the display sub-pixels are mixed to realize peeping prevention.
The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be fixedly attached, detachably attached, or integrally formed, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, reference to the terms "some embodiments," "exemplary," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made in the above embodiments by those skilled in the art within the scope of the application, which is therefore intended to be covered by the appended claims and their equivalents.
Claims (10)
1. A display panel comprising a substrate base plate and a driving circuit layer formed on one side of the substrate base plate, characterized in that the display panel further comprises:
the pixel structure layer is formed on one side, far away from the substrate base plate, of the driving circuit layer, the pixel structure layer comprises a plurality of pixel units, at least part of the pixel units comprise a plurality of display sub-pixels and at least one peeping-prevention sub-pixel, and the display sub-pixels and the peeping-prevention sub-pixels are connected with the driving circuit layer;
The transparent structure layer is formed on one side, far away from the substrate, of the pixel structure layer, the transparent structure layer comprises a plurality of grooves, the grooves are formed in one side, far away from the substrate, of the transparent structure layer, the orthographic projection of the peep-proof sub-pixels on the transparent structure layer is located in the grooves, and the grooves are used for diffusing light rays of the peep-proof sub-pixels, which are shot to the grooves.
2. The display panel of claim 1, wherein the recess includes a recess bottom and a recess side surrounding the recess bottom, the recess side for diffusing light from the privacy sub-pixel toward the recess.
3. The display panel of claim 2, further comprising a light shielding layer comprising a plurality of light shielding cells, the light shielding cells disposed at the bottom of the channel.
4. A display panel according to claim 2 or 3, wherein the cavity of the recess is a rectangular pyramid and the bottom of the recess is the apex of the rectangular pyramid.
5. The display panel according to claim 4, wherein the pixel units are arranged in an array in a row direction and a column direction, and the groove has four groove sides, two of which are arranged in the row direction and the other two of which are arranged in the column direction.
6. A display panel according to claim 2 or 3, wherein the inner cavity of the groove is a triangular prism, the bottom of the groove is an edge of the triangular prism, the pixel units are arranged in an array in the row direction and the column direction, and two groove sides of the groove are sides of the triangular prism and are arranged in the row direction.
7. The display panel according to claim 2, further comprising a planarization layer formed on a side of the transparent structural layer away from the substrate base plate, the transparent structural layer having a refractive index greater than a refractive index of the planarization layer.
8. The display panel according to claim 1, wherein the pixel structure layer includes an anode layer, a pixel definition layer, a light emitting layer, and a cathode layer, the light emitting layer includes a plurality of display light emitting portions and a plurality of peep-proof light emitting portions, the display sub-pixel includes the display light emitting portions, the peep-proof sub-pixel includes the peep-proof light emitting portions, the anode layer is formed on a side of the driving circuit layer away from the substrate, the pixel definition layer is formed on a side of the anode layer away from the substrate, the light emitting layer is formed on a side of the anode layer in the pixel definition layer definition region, the cathode layer is formed on a side of the light emitting layer away from the substrate, the display panel further includes an encapsulation layer formed on a side of the cathode layer away from the substrate, and the transparent structure layer is located on a side of the encapsulation layer away from the substrate.
9. The display panel of claim 8, further comprising a color blocking layer and a black matrix, wherein the color blocking layer is formed on a side of the transparent structural layer away from the substrate, the plurality of display light emitting portions includes a red display light emitting portion, a green display light emitting portion, and a blue display light emitting portion, the color blocking layer includes a red color blocking layer, a green color blocking layer, and a blue color blocking layer, an orthographic projection of the red display light emitting portion on the color blocking layer is located in the red color blocking layer, an orthographic projection of the green display light emitting portion on the color blocking layer is located in the blue color blocking layer, the blue display light emitting portion is located between adjacent display light emitting portions, and between adjacent display light emitting portions and the privacy light emitting portion, the privacy light emitting portion and the black matrix form a space.
10. A display device, comprising:
the display panel according to any one of claims 1 to 9;
And the main board is connected with the display panel.
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