CN116193927A - Display panel and display device - Google Patents

Abstract

The application belongs to the display field, concretely relates to display panel and display device, display panel is including the substrate base plate, luminescent layer, diffusion layer and the shading layer that form in proper order, the luminescent layer includes a plurality of display sub-pixel and at least one peep-proof sub-pixel, the shading layer includes the light-proof unit, the light-proof unit with peep-proof sub-pixel one-to-one, peep-proof sub-pixel is in the orthographic projection correspondence of shading layer is located in the light-proof unit, peep-proof sub-pixel's first partial light is sheltered from by the light-proof unit, peep-proof sub-pixel's second partial light is followed export around the light-proof unit, the diffusion layer forms between the luminescent layer with at least be used for with second partial light to the skew the diffusion of light-proof unit direction. According to the display panel, the peep-proof angle of the display panel is increased by diffusing part of light rays of the peep-proof sub-pixels, so that the size of the shading unit can be reduced by the design, and the loss of the aperture ratio of the display panel is reduced.

Description

Display panel and display device

Technical Field

The application belongs to the field of display, and particularly relates to a display panel and a display device.

Background

An Organic Light-Emitting Diode (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 is widely used in electronic products such as televisions, mobile phones and notebooks.

The active light emitting characteristic of the organic light emitting diode enables the OLED display panel to have a wider viewing angle, and the viewing angle can reach 170 degrees generally. The display panel has a wider viewing angle, which can bring better visual experience to users, but sometimes users also want the viewing angle of the display panel to be adjustable, so that business confidentiality and personal privacy are effectively protected.

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. In order to solve the problem that the peep-proof function of the switch is inconvenient, peep-proof pixels are arranged in some display panels, after the peep-proof pixels are opened, light rays of the peep-proof pixels are shielded in front view, and light emitted by the peep-proof pixels interferes with light of the display pixels in oblique view, so that peep-proof in oblique view is realized. However, to realize wide-angle peep prevention, the light shielding structure needs to be made larger, resulting in an increase in the aperture ratio loss of the display panel.

Disclosure of Invention

The present invention provides a display panel and a display device, which can reduce the loss of the aperture ratio of the display panel.

In order to achieve the above object, the present application provides a display panel including a substrate base plate, the display panel further including:

the light-emitting layer is formed on one side of the substrate base plate and comprises a plurality of display sub-pixels and at least one peep-proof sub-pixel;

the light shielding layer is formed on one side, far away from the substrate, of the light emitting layer, the light shielding layer comprises light shielding units, the light shielding units are in one-to-one correspondence with the peep-proof sub-pixels, the orthographic projection of the peep-proof sub-pixels on the light shielding layer is correspondingly positioned in the light shielding units, a first part of light rays of the peep-proof sub-pixels are shielded by the light shielding units, and a second part of light rays of the peep-proof sub-pixels are emitted from the periphery of the light shielding units;

and a diffusion layer formed between the light emitting layer and the light shielding layer, at least for diffusing the second part of light in a direction deviating from the light shielding unit.

Optionally, the diffusion layer includes a first diffusion layer and a second diffusion layer, the first diffusion layer is formed between the light emitting layer and the light shielding layer, the second diffusion layer is formed on a side of the first diffusion layer away from the substrate, and a refractive index of the first diffusion layer is greater than a refractive index of the second diffusion layer.

Optionally, the second diffusion layer includes a plurality of diffusion units, the diffusion units are in one-to-one correspondence with the light shielding units, and orthographic projection of the diffusion units on the light shielding layer is located in or coincides with the corresponding light shielding units.

Optionally, a plurality of positioning holes are formed in a side, far away from the substrate, of the first diffusion layer, the diffusion units are at least partially buried in the positioning holes, the positioning holes are provided with opposite hole bottom surfaces and hole side surfaces, and the hole side surfaces are conical surfaces or cambered surfaces protruding outwards.

Optionally, the display panel further includes an encapsulation layer, the encapsulation layer is formed between the light shielding layer and the light emitting layer, the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer, the first diffusion layer is the organic encapsulation layer, and the second diffusion layer is located between the organic encapsulation layer and the second inorganic encapsulation layer or on a side of the second inorganic encapsulation layer away from the substrate.

Optionally, the display panel further includes an encapsulation layer, the encapsulation layer is formed between the light shielding layer and the light emitting layer, the diffusion layer is the encapsulation layer, the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer, and refractive indexes of the first inorganic encapsulation layer, the organic encapsulation layer and the second inorganic encapsulation layer are sequentially reduced.

Optionally, the display panel further includes a light-gathering layer, the light-gathering layer includes a plurality of light-gathering units, the orthographic projection of the display sub-pixels on the light-gathering layer is located in the light-gathering units, and the light-gathering layer is located on one side, far away from or near to the substrate, of the first inorganic packaging layer.

Optionally, the display panel further includes a first anode layer, a pixel defining layer, a second anode layer, and a cathode layer, where the first anode layer, the pixel defining layer, the second anode layer, the light emitting layer, and the cathode layer are sequentially formed on the substrate;

the first anode layer comprises a plurality of first anodes arranged at intervals, the pixel definition layer is provided with a via hole, the second anode layer comprises a plurality of second anodes, the second anodes are located between adjacent via holes, the display sub-pixels are located in the via holes and connected with the first anodes, the peep-proof sub-pixels are located on one side, away from the substrate, of the second anodes, the light focusing layer is located on one side, close to the substrate, of the first inorganic packaging layer, and the light focusing unit is located at least partially in the via holes.

Optionally, the display panel further includes an encapsulation layer and a color blocking layer, the encapsulation layer is formed between the light shielding layer and the light emitting layer, and the color blocking layer is formed on a side of the encapsulation layer away from the substrate;

the color resistance layer comprises a plurality of color resistances, the orthographic projection of the display sub-pixel on the color resistance layer is positioned in the color resistance, the shading layer further comprises a black matrix, the black matrix and the shading unit are arranged on the same layer, and the black matrix is arranged around the color resistance.

The application also provides a display device, comprising:

a 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 application, display panel is including the substrate base plate that forms in proper order, luminescent layer, diffusion layer and shading layer, luminescent layer includes display sub-pixel and peep-proof sub-pixel, peep-proof sub-pixel's first partial light is sheltered from by the shading unit of shading layer, peep-proof sub-pixel's second partial light is from the shading unit around outgoing, the diffusion layer can be with second partial light to the diffusion of skew shading unit direction, with the peep-proof angle of increase display panel, the design can reduce shading unit size like this, and then reduce display panel's aperture ratio loss.

Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part 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 apparent 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 an embodiment of the present application.

Fig. 2 is a schematic view illustrating the peep-proof principle of a display panel according to the first embodiment of the present application.

Fig. 3 is a schematic structural diagram of a display panel in a second embodiment of the present application.

Fig. 4 is a schematic structural diagram of a display panel in a third embodiment of the present application.

Fig. 5 is a schematic view illustrating the peep-proof principle of the display panel in the third embodiment of the present application.

Fig. 6 is a schematic structural diagram of a display device in a fourth embodiment of the present application.

Reference numerals illustrate:

100. a substrate base; 200. a driving circuit layer;

310. a first anode layer; 311. a first anode; 320. a pixel definition layer; 330. a light emitting layer; 331. displaying the sub-pixels; 332. peep-proof sub-pixels; 340. a cathode layer; 350. an encapsulation layer; 351. a first inorganic encapsulation layer; 352. an organic encapsulation layer; 353. a second inorganic encapsulation layer; 360. a light shielding layer; 361. a light shielding unit; 370. a color resist layer; 380. an anti-reflection layer; 390. a diffusion layer; 391. a first diffusion layer; 3911. a hole side; 392. a second diffusion layer; 3921. a diffusion unit; 400. a second anode layer; 401. a second anode; 410. a light-condensing layer; 411. a condensing unit;

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 present application. One skilled in the relevant art will recognize, however, that the aspects of the application can 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 present application is further described in detail below with reference to the drawings and 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 exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present 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 first anode layer 310, a pixel defining layer 320, a light emitting layer 330, a cathode layer 340, and a light shielding layer 360, which are sequentially formed, and the substrate 100 includes a glass substrate or a polyimide (Pi) substrate. The first anode layer 310 includes a plurality of first anodes 311 and a plurality of second anodes 401 arranged at intervals, the second anodes 401 and the first anodes 311 are arranged in the same layer, and two adjacent second anodes 401 are arranged at intervals or at least part of the second anodes 401 are connected.

The light emitting layer 330 includes a plurality of display sub-pixels 331 and at least one privacy sub-pixel 332. For example, the light emitting layer 330 includes a plurality of pixel units, each including a red display sub-pixel 331, a green display sub-pixel 331, a blue display sub-pixel 331, and a peep-proof sub-pixel 332, the peep-proof sub-pixel 332 may be a red, blue, green, yellow, or white sub-pixel, etc., the yellow sub-pixel may be formed by stacking a red organic light emitting material and a green organic light emitting material, and the white sub-pixel may be formed by stacking a red organic light emitting material, a green organic light emitting material, and a blue organic light emitting material.

The light shielding layer 360 includes light shielding units 361, the light shielding units 361 are in one-to-one correspondence with the peep-proof sub-pixels 332, the peep-proof sub-pixels 332 are located in the light shielding units 361 in orthographic projection correspondence of the light shielding layer 360, a first part of light rays of the peep-proof sub-pixels 332 are shielded by the light shielding units 361, and a second part of light rays of the peep-proof sub-pixels 332 exit from the periphery of the light shielding units 361.

The display panel further includes a diffusion layer 390 formed between the cathode layer 340 and the light shielding layer 360, at least for diffusing a second portion of the light in a direction deviating from the light shielding unit 361.

The display panel has a peep-proof mode, when the peep-proof mode is closed, the display sub-pixel 331 displays normally, the peep-proof sub-pixel 332 is closed, and the display panel can display clearly under the front view or the oblique view. When the peep-proof mode is started, the peep-proof sub-pixel 332 is started, the forward light of the peep-proof sub-pixel 332 is blocked by the light shielding unit 361, the forward light of the display sub-pixel 331 is not interfered, and the display panel can clearly display in front view; the oblique light of the peep-proof sub-pixel 332 is not blocked by the light shielding unit 361, the oblique light of the display sub-pixel 331 is mixed with the oblique light of the peep-proof sub-pixel 332, and the display panel cannot clearly display under oblique viewing, so that the peep-proof function is realized. To realize wide-angle peep prevention for the display panel, the light shielding unit 361 needs to be made larger, resulting in an increase in the aperture ratio loss of the display panel.

In this application, the display panel includes the substrate 100 that forms in proper order, the drive circuit layer 200, first positive pole layer 310, pixel definition layer 320, luminescent layer 330, cathode layer 340, diffusion layer 390 and shading layer 360, luminescent layer 330 is including showing sub-pixel 331 and peep-proof sub-pixel 332, the first partial light of peep-proof sub-pixel 332 is sheltered from by the shading unit 361 of shading layer 360, the second partial light of peep-proof sub-pixel 332 is from the shading unit 361 outgoing all around, diffusion layer 390 can diffuse the second partial light to deviating from shading unit 361 direction, in order to increase display panel's peep-proof angle, the design can reduce shading unit 361 size like this, and then reduce display panel's aperture ratio loss.

In addition, the display panel without the diffusion layer 390 has the advantages that the first part of light of the peep-proof sub-pixel 332 is shielded and absorbed by the shading unit 361 of the shading layer 360, the light utilization rate of the peep-proof sub-pixel 332 is low, at least part of the first part of light is diffused to the periphery of the shading unit 361 and emitted out through the diffusion layer 390, the light utilization rate of the peep-proof sub-pixel 332 is low, and the peep-proof effect of the display panel is improved.

Illustratively, the diffusion layer 390 includes a first diffusion layer 391 and a second diffusion layer 392, the first diffusion layer 391 being formed between the cathode layer 340 and the light shielding layer 360, the second diffusion layer 392 being formed on a side of the first diffusion layer 391 remote from the substrate 100, the first diffusion layer 391 having a refractive index greater than that of the second diffusion layer 392.

When the refractive index of the first diffusion layer 391 is greater than that of the second diffusion layer 392, the light of the peep-proof sub-pixel 332 is diffused in a direction deviating from the corresponding light shielding unit 361 when passing through the first diffusion layer 391 and the second diffusion layer 392, so that the size of the light shielding unit 361 can be designed smaller, and the aperture loss of the display panel is reduced.

In addition, the first diffusion layer 391 and the second diffusion layer 392 are additionally provided with a film layer, so that the materials of the first diffusion layer 391 and the second diffusion layer 392 are designed to be more flexible.

Referring to fig. 1 and 2, the second diffusion layer 392 includes a plurality of diffusion units 3921, the diffusion units 3921 are in one-to-one correspondence with the light shielding units 361, and the orthographic projections of the diffusion units 3921 on the light shielding layer 360 are located in or overlapped with the corresponding light shielding units 361. The first diffusion layer 391 may be a monolithic layer.

It should be noted that the first diffusion layer 391 may be an integral film, but not limited thereto, and the first diffusion layer 391 may be an integral film, and the first diffusion layer 391 may be disposed only under the diffusion unit 3921 near the substrate 100, as the case may be. The orthographic projection of the diffusion unit 3921 on the light shielding layer 360 is located in or overlapped with the corresponding light shielding unit 361, but not limited thereto, and the diffusion unit 3921 may be slightly larger than the light shielding unit 361, and only needs to be the light affecting the display sub-pixel 331, as the case may be.

The orthographic projection of the diffusion unit 3921 on the light shielding layer 360 is located in or overlapped with the corresponding light shielding unit 361, that is, the light of the peep-proof sub-pixel 332 sequentially passes through the first diffusion layer 391 and the second diffusion layer 392 and diffuses in a direction deviating from the corresponding light shielding unit 361, while the light of the display sub-pixel 331 does not pass through the second diffusion layer 392, that is, the light of the display sub-pixel 331 is not affected by the diffusion layer 390, so that the display effect of the display panel can be ensured.

Referring to fig. 1 and 2, a plurality of positioning holes are disposed on a side of the first diffusion layer 391 away from the substrate 100, the diffusion units 3921 are at least partially embedded in the positioning holes, the positioning holes have opposite hole bottom surfaces and hole side surfaces 3911, the hole side surfaces 3911 are conical surfaces or cambered surfaces protruding outwards, and the hole bottom surfaces are flat surfaces or cambered surfaces recessed towards the light shielding units 361.

When the hole side surface 3911 of the positioning hole is a conical surface or an outwards protruding cambered surface, the outer side surface of the diffusion unit 3921 corresponding to the hole side surface 3911 is also a conical surface or an outwards protruding cambered surface, and when the light of the peep-proof sub-pixel 332 irradiates the outer side surface of the diffusion unit 3921, total reflection can occur so as to increase the peep-proof angle of the display panel, and the size of the light shielding unit 361 can be reduced by adopting the design, so that the loss of the aperture ratio of the display panel is reduced. Meanwhile, when the light of the display sub-pixel 331 irradiates the outer side surface of the diffusion unit 3921, the light may be blocked by the light blocking unit 361 through the diffusion unit 3921.

When the hole bottom surface of the positioning hole is a plane or an arc surface recessed toward the light shielding unit 361, the bottom surface of the diffusion unit 3921 corresponding to the hole bottom surface is also a conical surface or an arc surface protruding outwards, and when the bottom surface of the light diffusion unit 3921 of the sub-pixel 331 is displayed, the light can pass through the diffusion unit 3921 and be shielded and absorbed by the light shielding unit 361. That is, by adjusting the shape of the bottom surface of the diffusion unit 3921, the light of the display sub-pixel 331 is prevented from being totally reflected when the light irradiates the diffusion unit 3921, and the light of the display sub-pixel 331 is further reflected to the substrate 100.

Referring to fig. 1 and 2, the display panel further includes an encapsulation layer 350, and the encapsulation layer 350 is formed between the cathode layer 340 and the light shielding layer 360. The encapsulation layer 350 includes a first inorganic encapsulation layer 351, an organic encapsulation layer 352, and a second inorganic encapsulation layer 353, the first inorganic encapsulation layer 351 being formed on a side of the cathode layer 340 remote from the substrate 100, the organic encapsulation layer 352 being formed on a side of the first inorganic encapsulation layer 351 remote from the substrate 100, the second inorganic encapsulation layer 353 being formed on a side of the organic encapsulation layer 352 remote from the substrate 100.

The encapsulation layer 350 is formed between the cathode layer 340 and the light shielding layer 360, and prevents the light emitting layer 330 formed of the organic light emitting material from being disabled by intrusion of water oxygen. The light shielding unit 361 is formed on the side of the encapsulation layer 350 away from the substrate 100, so that the distance between the light shielding unit 361 and the peep-proof sub-pixel 332 can be increased, which is convenient for aligning the light shielding unit 361 and the peep-proof sub-pixel 332 and adjusting the peep-proof angle.

Referring to fig. 1 and 2, the display panel further includes a color resist layer 370, and the color resist layer 370 is formed on a side of the encapsulation layer 350 away from the substrate 100. The color resist layer 370 includes red, green and blue color resists, the orthographic projection of the red display sub-pixel 331 on the color resist layer 370 is located in the red color resist, the orthographic projection of the green display sub-pixel 331 on the color resist layer 370 is located in the green color resist, and the orthographic projection of the blue display sub-pixel 331 on the color resist layer 370 is located in the blue color resist. The light shielding layer 360 further includes a black matrix disposed around the red, green, and blue color resists, and the light shielding unit 361 is disposed in the same layer.

The black matrix and the light shielding unit 361 are arranged on the same layer, so that the manufacturing cost of the display panel can be reduced.

It should be noted that, the black matrix and the light shielding unit 361 are arranged on the same layer, and may be formed by black light shielding materials, but not limited thereto, and the black matrix and the light shielding unit 361 may be stacked by red color resistor and blue color resistor instead, so that the design can simplify the process of manufacturing the display panel, thereby reducing the production cost.

The display panel further includes an anti-reflection layer 380, and the anti-reflection layer 380 is formed on a side of the color resist layer 370 away from the substrate 100.

In order to improve the contrast ratio of the display device and realize an integral black effect, a Polarizer (POL) is generally adopted in an OLED display panel, and the polarizer can effectively reduce the reflection intensity of external environment 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.

The structure of color resistance, black matrix and anti-reflection layer 380 is adopted, red color resistance, green color resistance and blue color resistance filter light, the black matrix is arranged around the color resistance to shield light, the anti-reflection layer 380 reduces the reflection intensity of external environment light on a screen, the polaroid of the OLED display panel can be canceled, the thickness of the functional layer is greatly reduced, the light emitting rate can be improved from 44% to 80%, the light emitting brightness is greatly increased, and therefore the power consumption of the OLED display panel is reduced.

Example two

The difference between the second embodiment and the first embodiment is that the first diffusion layer 391 and the second diffusion layer 392 are both additional layers, and the first diffusion layer 391 and the organic package layer 352 share one layer in the second embodiment.

Referring to fig. 3, the first diffusion layer 391 is an organic encapsulation layer 352, and the second diffusion layer 392 is located between the organic encapsulation layer 352 and the second inorganic encapsulation layer 353. The thickness of the first inorganic encapsulation layer 351 is 0.5 to 2 microns, the thickness of the organic encapsulation layer 352 is 4 to 20 microns, and the thickness of the second inorganic encapsulation layer 353 is 0.5 to 2 microns.

It should be noted that, the second diffusion layer 392 is located between the organic encapsulation layer 352 and the second inorganic encapsulation layer 353, but not limited thereto, and the second diffusion layer 392 may be disposed on a side of the second inorganic encapsulation layer 353 away from the substrate 100 due to the thinner thickness of the second inorganic encapsulation layer 353, as the case may be.

The first diffusion layer 391 is the organic encapsulation layer 352, that is, the first diffusion layer 391 and the organic encapsulation layer 352 share a common layer, so the thickness of the display panel and the manufacturing cost of the display panel can be reduced.

Example III

Referring to fig. 4 and 5, the main difference between the third embodiment and the first embodiment is that the diffusion layer 390 is an additionally provided film layer in the first embodiment, and the diffusion layer 390 is the encapsulation layer 350 in the third embodiment.

The display panel includes an encapsulation layer 350, and the encapsulation layer 350 is formed between the cathode layer 340 and the light shielding layer 360. The encapsulation layer 350 includes a first inorganic encapsulation layer 351, an organic encapsulation layer 352, and a second inorganic encapsulation layer 353, the first inorganic encapsulation layer 351 being formed on a side of the cathode layer 340 remote from the substrate 100, the organic encapsulation layer 352 being formed on a side of the first inorganic encapsulation layer 351 remote from the substrate 100, the second inorganic encapsulation layer 353 being formed on a side of the organic encapsulation layer 352 remote from the substrate 100.

In this embodiment, the refractive indexes of the first inorganic encapsulation layer 351, the organic encapsulation layer 352, and the second inorganic encapsulation layer 353 decrease in order.

In this embodiment, the diffusion layer 390 is the encapsulation layer 350, and by configuring the refractive indexes of the first inorganic encapsulation layer 351, the organic encapsulation layer 352 and the second inorganic encapsulation layer 353 to be sequentially reduced, part of the light of the peep-proof sub-pixel 332 is diffused in the direction deviating from the light shielding unit 361, so as to increase the peep-proof angle of the display panel, so that the size of the light shielding unit 361 can be reduced by design, and further the aperture loss of the display panel can be reduced.

Referring to fig. 4 and 5, the display panel further includes a light condensing layer 410, the light condensing layer 410 includes a plurality of light condensing units 411, the front projection of the display sub-pixel 331 on the light condensing layer 410 is located in the light condensing unit 411, and the light condensing layer 410 is located on a side of the first inorganic package layer 351 far from or near to the substrate 100. The light condensing unit 411 is configured to condense light of the display sub-pixel 331, and the refractive index of the light condensing unit 411 is smaller than that of the first inorganic encapsulation layer 351 or the light condensing unit 411 is a microlens.

Because the encapsulation layer 350 is a whole film layer, the encapsulation layer 350 also diffuses the light of the display sub-pixel 331 when diffusing the light of the peep-proof sub-pixel 332, thereby affecting the display effect. By arranging the light condensing unit 411 on the light emitting side of the display sub-pixel 331, the light of the display sub-pixel 331 is first condensed and diffused, that is, the influence of the encapsulation layer 350 on the light of the display sub-pixel 331 can be reduced or eliminated by the light condensing unit 411, so as to ensure the display effect of the display panel.

In some embodiments, the display panel further includes a second anode layer 400, the second anode layer 400 being formed between the pixel defining layer 320 and the light emitting layer 330, the second anode layer 400 including a plurality of second anodes 401. The pixel defining layer 320 has vias communicating with the first anode electrode 311, and the second anode electrode 401 is located in a region between adjacent vias. The display sub-pixel 331 is located in the via hole and connected to the first anode 311, the peep-proof sub-pixel 332 is located at a side of the second anode 401 away from the substrate 100, the light-condensing layer 410 is located at a side of the first inorganic package layer 351 close to the substrate 100, and the light-condensing unit 411 is at least partially located in the via hole.

The display sub-pixel 331 is located in the via hole and connected to the first anode 311, and the peep-proof sub-pixel 332 is located on the side of the second anode 401 far away from the substrate 100, that is, the distance from the display sub-pixel 331 to the light shielding layer 360 is further than that of the peep-proof sub-pixel 332, so that the light condensing unit 411 and the peep-proof sub-pixel 332 can be designed at the same height or at a position closer to the substrate 100, thereby avoiding that the light condensing unit 411 affects the light of the peep-proof sub-pixel 332.

In addition, the peep-proof sub-pixel 332 is located in the area between the two via holes, so that the design space of the display sub-pixel 331 is not affected, and compared with a display panel without the peep-proof sub-pixel 332, the display panel aperture ratio in the embodiment is not lost.

Example IV

The present application further provides a display device, as shown in fig. 6, the display device includes a display panel 10 and a main board 20, where the main board 20 is connected to the display panel 10, and is used for driving the display panel 10 to display a picture. The display panel 10 includes the display panel 10 disclosed in the first to third embodiments.

The display device includes a display panel 10, the display panel 10 includes a substrate 100, a driving circuit layer 200, a first anode layer 310, a pixel defining layer 320, a light emitting layer 330, a cathode layer 340, a diffusion layer 390 and a shading layer 360 formed in sequence, the light emitting layer 330 includes a display sub-pixel 331 and a peep-proof sub-pixel 332, a first part of light of the peep-proof sub-pixel 332 is shaded by a shading unit 361 of the shading layer 360, a second part of light of the peep-proof sub-pixel 332 exits from the periphery of the shading unit 361, the diffusion layer 390 can diffuse the second part of light in a direction deviating from the shading unit 361 so as to increase the peep-proof angle of the display panel 10, so that the design can reduce the size of the shading unit 361 and further reduce the loss of the aperture ratio of the display panel 10.

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 this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally formed; 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 terms in this application will be understood by those of ordinary skill in the art as the case may be.

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 present 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 should 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 to the embodiments by one of ordinary skill in the art within the scope of the application, and therefore all changes and modifications that fall within the spirit and scope of the invention as defined by the claims and the specification of the application are intended to be covered thereby.

Claims (10)

1. A display panel comprising a substrate base plate, characterized in that the display panel further comprises:

the light-emitting layer is formed on one side of the substrate base plate and comprises a plurality of display sub-pixels and at least one peep-proof sub-pixel;

the light shielding layer is formed on one side, far away from the substrate, of the light emitting layer, the light shielding layer comprises light shielding units, the light shielding units are in one-to-one correspondence with the peep-proof sub-pixels, the orthographic projection of the peep-proof sub-pixels on the light shielding layer is correspondingly positioned in the light shielding units, a first part of light rays of the peep-proof sub-pixels are shielded by the light shielding units, and a second part of light rays of the peep-proof sub-pixels are emitted from the periphery of the light shielding units;

and a diffusion layer formed between the light emitting layer and the light shielding layer, at least for diffusing the second part of light in a direction deviating from the light shielding unit.

2. The display panel according to claim 1, wherein the diffusion layer includes a first diffusion layer formed between the light emitting layer and the light shielding layer, and a second diffusion layer formed on a side of the first diffusion layer away from the substrate, the first diffusion layer having a refractive index greater than that of the second diffusion layer.

3. The display panel of claim 2, wherein the second diffusion layer comprises a plurality of diffusion units, the diffusion units are in one-to-one correspondence with the light shielding units, and orthographic projections of the diffusion units on the light shielding layer are positioned in or overlapped with the corresponding light shielding units.

4. A display panel according to claim 3, wherein the first diffusion layer is provided with a plurality of positioning holes on a side away from the substrate, the diffusion units are at least partially embedded in the positioning holes, the positioning holes have opposite hole bottom surfaces and hole side surfaces, and the hole side surfaces are conical surfaces or cambered surfaces protruding outwards.

5. The display panel according to claim 3, further comprising an encapsulation layer formed between the light shielding layer and the light emitting layer, the encapsulation layer including a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer, the first diffusion layer being the organic encapsulation layer, the second diffusion layer being located between the organic encapsulation layer and the second inorganic encapsulation layer or on a side of the second inorganic encapsulation layer remote from the substrate.

6. The display panel according to claim 1, further comprising an encapsulation layer formed between the light shielding layer and the light emitting layer, wherein the diffusion layer is the encapsulation layer, wherein the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer, and wherein refractive indexes of the first inorganic encapsulation layer, the organic encapsulation layer, and the second inorganic encapsulation layer decrease in order.

7. The display panel of claim 6, further comprising a light focusing layer, the light focusing layer comprising a plurality of light focusing elements, the orthographic projection of the display sub-pixels on the light focusing layer being located within the light focusing elements, the light focusing layer being located on a side of the first inorganic encapsulation layer that is remote from or proximate to the substrate.

8. The display panel according to claim 7, further comprising a first anode layer, a pixel defining layer, a second anode layer, and a cathode layer, wherein the first anode layer, the pixel defining layer, the second anode layer, the light emitting layer, and the cathode layer are sequentially formed on the substrate;

the first anode layer comprises a plurality of first anodes arranged at intervals, the pixel definition layer is provided with a via hole, the second anode layer comprises a plurality of second anodes, the second anodes are located between adjacent via holes, the display sub-pixels are located in the via holes and connected with the first anodes, the peep-proof sub-pixels are located on one side, away from the substrate, of the second anodes, the light focusing layer is located on one side, close to the substrate, of the first inorganic packaging layer, and the light focusing unit is located at least partially in the via holes.

9. The display panel according to claim 1, further comprising an encapsulation layer formed between the light shielding layer and the light emitting layer, and a color resist layer formed on a side of the encapsulation layer away from the substrate;

the color resistance layer comprises a plurality of color resistances, the orthographic projection of the display sub-pixel on the color resistance layer is positioned in the color resistance, the shading layer further comprises a black matrix, the black matrix and the shading unit are arranged on the same layer, and the black matrix is arranged around the color resistance.

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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