Display panels and display devices
The display panel's structured light transmission regions enhance light incidence on the photosensitive element, addressing poor imaging in under-screen cameras by increasing brightness and visual quality.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- HKC CORP LTD
- Filing Date
- 2024-06-27
- Publication Date
- 2026-07-23
AI Technical Summary
Existing under-screen cameras in display devices suffer from poor imaging effects due to the impact of special-shaped screens, and solutions like lifting cameras or slide covers are costly and difficult to implement, necessitating an improved design for full-screen phones.
A display panel with a photosensitive display area featuring a regular pattern of display pixel areas and light transmission areas, including a principal light transmission region with rounded edges and a compensating light transmission region with right-angle corners, enhances light transmission and improves imaging effects.
The design increases light incidence on the photosensitive element, enhancing the imaging effect by increasing light gathering brightness and improving the visual quality of captured images.
Smart Images
Figure 2026524698000001_ABST
Abstract
Description
Technical Field
[0004] , , , , , , , , ,
[0005]
[0001] (Reference to Related Application) This application claims priority to a Chinese patent application with an application number of 2023109575056 and an invention title of "Display Panel and Display Device", which was filed with the China National Intellectual Property Administration on August 1, 2023, and the entire content thereof is incorporated herein by reference.
[0002] (Technical Field) This application belongs to the field of display technology, and specifically relates to a display panel and a display device.
Background Art
[0003] Due to the influence of the front camera, various special-shaped screens such as notch screens, water-drop screens, and punch-hole screens have become mainstream in the market. These special structures have a certain impact on the beauty of the screen. Although mobile phones can achieve a true full screen by installing a lifting camera or a slide cover, the lifting camera and the slide cover not only cost a lot, but are also difficult to design and require a significant improvement in drop resistance. Therefore, an under-screen camera is the optimal solution for a full-screen phone considering both cost and performance, but the imaging effect of existing under-screen cameras is poor.
Summary of the Invention
[0004] This application provides a display panel and a display device that can improve the imaging effect of a photosensitive element.
[0005] The first aspect of this application provides a display panel including a photosensitive display area corresponding to a photosensitive element. The photosensitive display area includes a plurality of display pixel areas arranged in a regular pattern and a light transmission area located between adjacent display pixel areas. The light transmission area is arranged at an interval from the display pixel area, and the light transmission area a main light transmission area that is rounded rectangular, and The device comprises a compensating light transmitting region formed at the rounded corner of the principal light transmitting region and spaced apart from the principal light transmitting region, the compensating light transmitting region having a right-angle corner on the side closer to the rounded corner.
[0006] A second aspect of the present application provides a display device comprising a display panel as described above and a drive chip connected to the display panel.
[0007] Furthermore, this invention also includes a display device that improves the imaging effect of a photosensitive element and the imaging effect of a display device by providing a principal light transmission region, a compensation light transmission region, and right-angle corners in the compensation light transmission region.
[0008] Other features and advantages of this application will become apparent from the following detailed description or will be partially understood through the implementation of this application.
[0009] Please understand that the general explanation above and the detailed explanation below are for illustrative and illustrative purposes only and do not limit this application. [Brief explanation of the drawing]
[0010] The accompanying drawings incorporated herein and forming part thereof illustrate embodiments consistent with the present application and, together with the specification, are helpful in illustrating the principles of the present application. Clearly, the drawings described below represent only a few embodiments of the present application. Those skilled in the art can, without any creative effort, derive other drawings based on these.
[0011] [Figure 1] This is a schematic diagram of the structure of the display panel provided in Example 1, Example 2, or Example 3 of the present application. [Figure 2] This is a schematic diagram of the arrangement structure of the principal light transmission region and the rectangular compensating light transmission region provided in Examples 1 and 3 of the present application. [Figure 3]This is a schematic diagram of a structure in which the photosensitive element provided in Example 1, Example 2, or Example 3 of the present application is positioned below the display panel, and the light transmission holes in the principal light transmission region or the compensating light transmission region are not filled with light-transmitting material. [Figure 4] This is a schematic diagram of a structure in which the photosensitive element provided in Example 1, Example 2, or Example 3 of the present application is positioned below the display panel, and the light transmission holes in the principal light transmission region / compensation light transmission region are filled with a light-transmitting material. [Figure 5] This is a schematic diagram of a structure in which the photosensitive element provided in Example 1, Example 2, or Example 3 of the present application is placed below a display panel, and light transmission holes are opened in the principal light transmission region / compensation light transmission region up to the planarization layer, and a light transmission material is filled in. [Figure 6] This is a schematic diagram of a structure in which the photosensitive element provided in Example 1, Example 2, or Example 3 of the present application is positioned below the display panel, and light transmission holes are opened up to the planarization layer in the principal light transmission region / compensation light transmission region. [Figure 7] This is a schematic diagram of a structure in which the photosensitive element provided in Example 1, Example 2, or Example 3 of the present application is positioned below the display panel, and a convex lens is positioned in the principal light transmission region / compensating light transmission region. [Figure 8] This is a schematic diagram of a structure in which the photosensitive element provided in Example 1, Example 2, or Example 3 of the present application is positioned below a display panel, and a light-transmitting material is coated on a first inorganic sealing layer. [Figure 9] This is a schematic diagram of a structure in which the photosensitive element provided in Example 1, Example 2, or Example 3 of the present application is positioned below the display panel, and a light-transmitting material is exposed and developed. [Figure 10] This is a schematic diagram of a structure in which the photosensitive element provided in Example 1, Example 2, or Example 3 of the present application is placed below the display panel and a light-transmitting material is fired. [Figure 11] This is a schematic diagram of a structure in which the photosensitive element provided in Example 1, Example 2, or Example 3 of the present application is positioned below the display panel and a light-transmitting material is filled on top of the convex lens. [Figure 12]This is a schematic diagram of a structure provided in Example 2 or Example 3 of the present application, in which two sub-light transmission regions are provided in the compensating light transmission region. [Modes for carrying out the invention]
[0012] The embodiments will be described in more detail below with reference to the attached drawings. However, the embodiments may be implemented in many forms and should not be construed as being limited to the examples described herein. Rather, these embodiments are provided to make the present application more comprehensive and complete, and to ensure that the concepts of the exemplary embodiments are fully conveyed to those skilled in the art.
[0013] Furthermore, the features, structures, or properties described can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to enable a full understanding of the embodiments of the present application. However, those skilled in the art will understand that the technical solutions of the present application can be implemented without one or more specific details, or that other methods, components, apparatus, steps, etc., can be employed. In other cases, well-known methods, apparatus, implementations, or operations are not described or described in detail, in order to avoid obscuring aspects of the present application.
[0014] The present application will be described in more detail below with reference to the attached drawings and specific embodiments. It should be noted that the technical features included in the various embodiments of the present application described below can be combined with each other, insofar as they do not contradict each other. The embodiments described below with reference to the attached drawings are illustrative and intended for use in illustrating the present application, and should not be construed as limiting the present application.
[0015] (Example 1) Example 1 of the present application provides a display panel 10, and the display panel 10 may be an OLED (organic light emitting diode) display. As shown in FIG. 1, the display panel 10 includes a normal display area 11 and a photosensitive display area 12. The normal display area 11 is used to display normal images, and the photosensitive display area 12 corresponds to the photosensitive element 20. As shown in FIG. 2, the photosensitive display area 12 includes a plurality of display pixel areas 120 arranged in a regular pattern and a light transmission area 121 located between adjacent display pixel areas 120. The light transmission area 121 is arranged at an interval from the display pixel area 120.
[0016] It can be understood that by providing the light transmission area 121 adjacent to the display pixel area 120 on the photosensitive display area 12, the amount of light incident on the photosensitive element 20 can be increased, and the shooting visual effect of the photosensitive element 20 under the display panel 10 can be improved. <L
[0017] Furthermore, as shown in FIG. 2, the display pixel area 120 includes a plurality of pixel units 1200, and each pixel unit 1200 includes a plurality of display sub-pixels 1201 of different colors, such as a red display sub-pixel, a green display sub-pixel, and a blue display sub-pixel. The plurality of display sub-pixels 1201 of different colors may be alternately arranged in the row direction or arranged in other arrangements. This may be specifically designed according to different embodiments. Each display sub-pixel 1201 includes one display light emitting diode, and the display light emitting diode includes a display light emitting portion 122. As shown in FIG. 3, the display light emitting portion 122 is formed on the organic light emitting functional layer.
[0018] Note that the display light-emitting unit 122 can emit light of the same color, and by changing the color of the light emitted by the color resist unit 190 described later, different-color display sub-pixels 1201 can be realized. Alternatively, each display light-emitting unit 122 emits light of different colors, such as red light, green light, and blue light, and the display sub-pixel 1201 is determined by the color of the emitted light. That is, the display light-emitting unit 122 that emits red light is a red display sub-pixel, the display light-emitting unit 122 that emits green light is a green display sub-pixel, and the display light-emitting unit 122 that emits blue light is a blue display sub-pixel.
[0019] In the embodiment of the present application, as shown in FIG. 4 or FIG. 5, the display panel 10 includes a substrate 13, a driving circuit layer 14, a flattening layer 15, and a pixel defining layer 16 that are sequentially formed on the substrate 13.
[0020] The substrate 13 may be a rigid substrate 13 made of glass, but it is understood that it is not limited thereto. Further, it may be a flexible substrate 13 formed of a material such as polyimide (abbreviation). That is, the display device of the present application is not limited to a hard and non-bendable panel, and may be a flexible and bendable panel.
[0021] Also, the driving circuit layer 14 is provided with circuit structures such as thin film transistors and wirings for driving the light-emitting diodes described later to emit light, but detailed description thereof is omitted here. The flattening layer 15 is disposed on the side of the driving circuit layer 14 away from the substrate 13, and by flattening the driving circuit layer 14, the light-emitting diodes described later are disposed, and the light-emitting diodes of the entire display panel 10 are disposed on the same plane to ensure the display effect.
[0022] As shown in Figure 4 or Figure 5, the pixel definition layer 16 may have a plurality of spaced-apart pixel apertures 161 and pixel definition sections 160 located between adjacent pixel apertures 161. In other words, the pixel definition layer 16 as a whole can be considered a lattice-like hollow structure layer, where the hollow regions are the pixel apertures 161 for forming pixels in this embodiment, and the non-hollow regions are the pixel definition sections 160 in this embodiment. It should be understood that the surface of the pixel definition section 160 away from the substrate 13 is planar. For example, the pixel definition layer 16 can be made from a material such as PI.
[0023] Furthermore, the above-mentioned display light-emitting diode comprises a display anode 123 and a display cathode 124. As shown in Figure 4 or Figure 5, the display anode 123 is located on the side of the display light-emitting unit 122 closer to the substrate 13, and the display cathode 124 is located on the side of the display light-emitting unit 122 further from the substrate 13.
[0024] It should be understood that the display anodes 123 of each display light-emitting diode in the display panel 10 are spaced apart from each other so that each display light-emitting diode can be driven independently of each other, and that the display cathodes 124 of each display light-emitting diode can be interconnected to form a full-surface electrode to reduce processing costs.
[0025] Of these, the display anode 123 may include a first conductive layer formed on the side of the planarization layer 15 furthest from the drive circuit layer 14 and located between the planarization layer 15 and the pixel definition layer 16. In other words, in the manufacturing process of the display panel 10, first the first conductive layer is formed on the planarization layer 15, and then the pixel definition layer 16 is manufactured. The pixel definition portion 160 covers the edge region of the first conductive layer. The edge region of the first conductive layer can be connected to structures such as thin-film transistors in the drive circuit layer 14, and the pixel aperture 161 exposes the central region of the first conductive layer. The display light-emitting portion 122 is located within the pixel aperture 161 and is in contact with the central region of the first conductive layer.
[0026] For example, the first conductive layer may have a multilayer structure, that is, the first conductive layer may include at least a sequentially stacked reflective layer and a high work function material layer. The high work function material layer may include indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium oxide (In2O3), and the reflective layer may include silver (Ag), that is, the first conductive layer may have an ITO / Ag multilayer structure, but is not limited to this, and the first conductive layer may include a sequentially stacked high work function material layer, a reflective layer, and a high work function material layer, for example, the first conductive layer may have an ITO / Ag / ITO multilayer structure.
[0027] The display light-emitting unit 122 can be placed within the pixel aperture 161. That is, when manufacturing the display panel 10, the pixel definition layer 16 can be manufactured first, and then the display light-emitting unit 122 can be manufactured after the pixel definition layer 16 has been manufactured, thereby forming the display light-emitting unit 122 within the pixel aperture 161. For example, the display light-emitting unit 122 may be formed within the pixel aperture 161 by a vapor deposition method or the like.
[0028] The number of display light-emitting units 122 is the same as the number of pixel apertures 161, indicating a one-to-one correspondence.
[0029] The display light-emitting section 122 is constructed by sequentially laminating a hole injection layer, a hole transport layer, an organic light-emitting material layer, an electron transport layer, and an electron injection layer, with the hole injection layer in contact with the display anode 123 and the electron injection layer in contact with the display cathode 124, but is not limited to this configuration. The display light-emitting section 122 may include only the hole transport layer, the light-emitting material layer, and the electron transport layer, or it may include other structures, depending on actual requirements.
[0030] The indicator cathode 124 may be formed after the indicator light-emitting section 122 is formed, or it may be in contact with the indicator light-emitting section 122. The indicator cathode 124 may include a low work function material layer containing Li, Ca, LiF / Ca, LiF / Al, Al, Mg, Ag, Pt, Pd, Ni, Au, Nd, Ir, Cr, BaF2, Ba, compounds thereof, or mixtures thereof. For example, the indicator cathode 124 may include a low work function material layer made from a mixture of Ag and Mg.
[0031] In addition, the display cathode 124 of the normal display area 11 and the display cathode 124 of the photosensitive display area 12 may be designed to extend across the entire surface, or the display cathodes 124 of the two areas may be separated from each other, that is, designed separately and connected by metal wiring.
[0032] Furthermore, as shown in Figure 4 or Figure 5, the display panel 10 further includes a sealing layer 17 located on the side away from the substrate 13 of the display light-emitting diode, and the sealing layer 17 is constructed by sequentially stacking a first inorganic sealing layer 170, an organic sealing layer 171, and a second inorganic sealing layer 172.
[0033] In the embodiment of the present invention, as shown in Figure 4 or Figure 5, the display panel 10 employs COE technology, that is, the display panel 10 also includes a shielding layer 18 and a color resist layer 19 formed on the second inorganic sealing layer 172, the color resist layer 19 comprising a plurality of color resist portions 190 arranged at intervals from each other, and the colors of adjacent color resist portions 190 are different from each other. In order to avoid color mixing between adjacent color resist portions 190, a shielding layer 18 made of a light-shielding material is provided between adjacent color resist portions 190, and by having an area where the orthographic projection of the color resist portion 190 onto the substrate 13 and the orthographic projection of the shielding layer 18 onto the substrate 13 overlap, the detachment of the color resist portion 190 is avoided and the display effect is ensured.
[0034] Each of these display light-emitting diodes corresponds to a color resist section 190 of a single light-emitting color. The color resist section 190 can efficiently absorb all wavelengths of ambient light. The R (red), G (green), and B (blue) color resist sections 190 can transmit more than 80% of the display light emitted from the display light-emitting section 122. Furthermore, while purifying the light, they can also effectively absorb other wavelengths of light in the ambient light that are not the corresponding primary colors. This method reduces the reflection of ambient light by the display device without using a circular polarizer, thereby improving the contrast of the display and enabling more accurate and wider color expression.
[0035] Furthermore, as shown in Figure 4 or Figure 5, the display panel 10 comprises a base 100 and an anti-reflective layer 110. The anti-reflective layer 110 is positioned on the side of the color resist layer 19 and shielding layer 18 away from the second inorganic encapsulation layer 172. That is, when manufacturing the color resist layer 19 and shielding layer 18, the shielding layer 18 and color resist layer 19 are manufactured on the second inorganic encapsulation layer 172 in advance, and then the anti-reflective layer 110 is manufactured. Because the anti-reflective layer 110 can reduce the reflection intensity of external ambient light on the screen, a polarizer is not required for the display panel 10, the overall thickness of the display panel 10 is reduced, the light output rate is improved, the light output brightness is significantly increased, and the power consumption of the display panel 10 is also reduced. The base 100 is positioned on the side of the anti-reflective layer 110 away from the substrate 13 in order to cover the anti-reflective layer 110 and improve the light output effect.
[0036] In the embodiment of the present invention, in the photosensitive display area 12, a black area exists between the light-transmitting area 121 and the display pixel area 120, with a gap between them. This black area is either a metal wiring area or the aforementioned shielding layer 18.
[0037] In order to increase the light transmittance in the photosensitive display area 12 and improve the imaging effect of the photosensitive element 20, the light transmission area 121 includes the principal light transmission area 1210, as shown in Figure 2.
[0038] As shown in Figure 2, the principal light transmission region 1210 is located between adjacent pixel units 1200, meaning that adjacent pixel units 1200 can share the principal light transmission region 1210. To improve light transmittance, the pixel units 1200 in adjacent rows are arranged to intersect each other, meaning that two pixel units 1200 in two adjacent rows form a "Z" shape. In other words, one principal light transmission region 1210 may be surrounded by four pixel units 1200, and these four pixel units 1200 may share this principal light transmission region 1210. It can also be seen that four principal light transmission regions 1210 surround one pixel unit 1200. Increasing the number of principal light transmission regions 1210 within the photosensitive display area 12 increases the amount of light incident on the photosensitive element 20, improving the imaging effect of the photosensitive element 20.
[0039] The principal light transmission region 1210 may have a square or rectangular structure, and in order to reduce or improve the diffraction of light, the edges of the principal light transmission region 1210 are designed to be rounded, that is, the edges of the principal light transmission region 1210 have a rounded rectangular or rounded square structure.
[0040] The principal light transmission region 1210 can also be designed as a circular or elliptical structure to improve the light diffraction phenomenon, and it is understood that specific designs can be carried out according to different embodiments.
[0041] Furthermore, the photosensitive element 20 is placed beneath the substrate 13, and light enters the photosensitive element 20 through the principal light transmission region 1210, thereby achieving an imaging effect.
[0042] To improve light transmittance, the portions of the planarization layer 15, pixel definition layer 16, and sealing layer 17 located in the principal light transmission region 1210 are light-transmitting portions. The refractive index of at least one of the light-transmitting portions of the planarization layer 15, pixel definition layer 16, and sealing layer 17 is greater than the refractive index of the other film layers surrounding the light-transmitting portion. By changing the path of light due to the difference in refractive index, light with a wide viewing angle can be incident on the photosensitive element 20, thus increasing the amount of light incident on the photosensitive element 20, increasing the light-gathering brightness of the photosensitive element 20 during shooting, and improving the shooting brightness of the photosensitive element 20.
[0043] It is understood that the light-transmitting portion may consist of light-transmitting holes 1213 and a light-transmitting material 1214, that is, the light-transmitting holes 1213 may be formed in the planarization layer 15, the pixel definition layer 16, and the sealing layer 17, and the light-transmitting material 1214 may be filled in them.
[0044] Furthermore, light-transmitting holes 1213 may be formed in one, two, or three of the planarization layer 15, pixel definition layer 16, and sealing layer 17, and these holes may be filled with a light-transmitting material 1214.
[0045] For example, by creating a light-transmitting hole 1213 at the position of the principal light-transmitting region 1210, filling the light-transmitting hole 1213 with a light-transmitting material 1214 as shown in Figure 3 or Figure 6, and making the refractive index of the light-transmitting material 1214 greater than the refractive index of the surrounding film layer as shown in Figure 4, light with a wider viewing angle can be refracted through the refractive material into the photosensitive element 20. In other words, referring to Figure 3, originally only light at the critical angle α can pass through the principal light transmission region 1210 and be incident linearly on the photosensitive element 20. However, referring to Figure 4 or Figure 5, now light at the critical angle β (β>α) can also be incident on the photosensitive element 20 due to the refraction of the light-transmitting material 1214. Furthermore, light from the critical angle α to the critical angle β can also be incident on the photosensitive element 20 due to the refraction of the light-transmitting material 1214. As a result, the amount of light that can be incident on the principal light transmission region 1210 increases, the amount of light incident on the photosensitive element 20 increases, the light-gathering brightness of the photosensitive element 20 during shooting increases, and the shooting brightness of the photosensitive element 20 increases.
[0046] The critical angle α / critical angle β is understood to refer to the angle at which light strikes the edge of the photosensitive element 20, that is, the angle at which light is irradiated into the photosensitive element 20. When the angle is greater than the critical angle α / critical angle β, the light falls outside the photosensitive element 20, that is, when the angle is greater than the critical angle α / critical angle β, the photosensitive element 20 does not collect light.
[0047] To ensure that the light-transmitting material 1214 does not affect the display effect, the light-transmitting holes 1213 are opened between adjacent display subpixels 1201 and do not have to overlap with the display light-emitting section 122, as shown in Figure 3 or Figure 6. For example, the main light-transmitting region 1210 corresponds to the pixel definition section 160, that is, the light-transmitting holes 1213 are opened at the pixel definition section 160 and at a vertical position corresponding to the pixel definition section 160, and the light-transmitting material 1214 is filled inside the light-transmitting holes 1213.
[0048] For example, the pixel definition section 160, the shielding layer 18 corresponding to the pixel definition section 160, the second inorganic sealing layer 172, the organic sealing layer 171, the first inorganic sealing layer 170, and the display cathode 124 all have light-transmitting holes 1213, and the light-transmitting material 1214 is filled into the light-transmitting holes 1213.
[0049] In some selective embodiments, as shown in Figure 3, light-transmitting holes 1213 are provided in the pixel definition section 160, the shielding layer 18 corresponding to the pixel definition section 160, the second inorganic sealing layer 172, the organic sealing layer 171, the first inorganic sealing layer 170, and the display cathode 124. In other words, a hole is created at the location of the pixel definition section 160, and this hole extends to the planarization layer 15, partially exposing the planarization layer 15. That is, after the light-transmitting hole 1213 penetrates the pixel definition section 160, no further holes are drilled, and only holes up to the planarization layer 15 are drilled.
[0050] In another selective embodiment, as shown in Figure 6, light-transmitting holes 1213 are provided in the pixel definition section 160, the shielding layer 18 corresponding to the pixel definition section 160, the second inorganic sealing layer 172, the organic sealing layer 171, the first inorganic sealing layer 170, the indicator cathode 124, and the planarization layer 15. That is, perforations are made at the location of the pixel definition section 160, and the bottom of these perforations may be located in the planarization layer 15, i.e., only partial perforations are made in the planarization layer 15, and the planarization layer 15 is not penetrated. The method of creating partial perforations in the planarization layer 15 can protect the metal wiring on the drive circuit layer 14. Of course, the bottom of the perforations may penetrate the planarization layer 15, and the perforations may partially expose the drive circuit layer 14. As described above, compared to the case where perforations are made only in the pixel definition section 160 and the perforations are partially located in the planarization layer 15, the light-transmitting material 1214 is completely filled within the planarization layer 15, and the area where light is refracted becomes larger and wider, so that light with a wider viewing angle can pass through the light-transmitting material 1214 and enter the photosensitive element 20.
[0051] To create the light-transmitting holes 1213, after fabricating the shielding layer 18, the shielding layer 18, the second inorganic sealing layer 172, the organic sealing layer 171, the first inorganic sealing layer 170, the display cathode 124, the pixel definition section 160, and the planarization layer 15 located in the main light-transmitting region 1210 are perforated together to form the entire light-transmitting holes 1213. Alternatively, the layers with the light-transmitting holes 1213 may be created during the manufacturing of the corresponding layers. That is, the light-transmitting holes 1213 can be created during the manufacturing of the planarization layer 15, the light-transmitting holes 1213 can be created during the manufacturing of the pixel definition section 160, and so on until the entire light-transmitting holes 1213 is formed during the manufacturing of the shielding layer 18. Furthermore, the light-transmitting holes 1213 of each layer are interconnected and in correspondence with each other, and the light-transmitting effect can be ensured by filling the light-transmitting holes 1213 with light-transmitting material 1214.
[0052] Of course, the filling of the light-transmitting material 1214 can also be done after the layer of light-transmitting holes 1213 has been fabricated.
[0053] For example, the light-transmitting material 1214 may be a mixture of high refractive index materials such as silicon nitride (SiN) or silicon oxide (SiO) and organic substances in different proportions, or it may be a high refractive index organic film formed by organic analytical structures with different chain lengths and analytical structures.
[0054] For example, if the light-transmitting material 1214 is silicon nitride (SiN), its refractive index can reach 1.7 to 1.9, such as 1.7, 1.8, or 1.9.
[0055] As shown in Figure 4 or Figure 5, when the light-transmitting material 1214 fills the light-transmitting holes 1213, the light-transmitting material 1214 is surrounded by the pixel definition section 160, the display cathode 124, the sealing layer 17, and the shielding layer 18, and the refractive index of the light-transmitting material 1214 is greater than the refractive index of the other film layers surrounding the light-transmitting material 1214. In other words, if the light-transmitting holes 1213 are opened only in the pixel definition section 160, the display cathode 124, the sealing layer 17, and the shielding layer 18, the refractive index of the light-transmitting material 1214 is greater than the refractive index of the pixel definition section 160, the refractive index of the display cathode 124, the refractive index of the sealing layer 17, and the refractive index of the shielding layer 18. If the light-transmitting holes 1213 are opened up to the planarization layer 15, the refractive index of the light-transmitting material 1214 is greater than the refractive index of the planarization layer 15.
[0056] Furthermore, the refractive index of the anti-reflective layer 110 located above the color resist layer 19 and the shielding layer 18 is 1.55, meaning that the refractive index of the anti-reflective layer 110 is smaller than that of the light-transmitting material 1214. In addition, the refractive indices of the pixel definition section 160, the display cathode 124, the sealing layer 17, and the shielding layer 18 are the same as that of the anti-reflective layer 110. In other words, if the light-transmitting material 1214 is not filled, the light incident from the anti-reflective layer 110 will not be refracted and will be incident linearly into the principal light transmission region 1210.
[0057] After filling with the light-transmitting material 1214, the refractive indices of the anti-reflective layer 110, pixel definition section 160, shielding layer 18, sealing layer 17, and display cathode 124 are all smaller than the refractive index of the light-transmitting material 1214. According to the law of refraction, the angle of incidence of light is larger than the angle of emission of light, which means that light with a large viewing angle passes through the light-transmitting material 1214, is refracted, and enters the photosensitive element 20.
[0058] In other words, if the light-transmitting material 1214 is not filled, light at an angle less than the critical angle α can directly enter the photosensitive element 20, while if the light-transmitting material 1214 is not filled, light at an angle greater than the critical angle α cannot enter the photosensitive element 20. If the light-transmitting material 1214 is filled, light at an angle greater than the critical angle α can be refracted by the difference in refractive index between the light-transmitting material 1214 and the surrounding film layer and enter the photosensitive element 20. In other words, by using the light-transmitting material 1214, light at angles from the critical angle α to the critical angle β can also enter the photosensitive element 20, so more light enters the photosensitive element 20 due to refraction, improving the light-gathering angle of the photosensitive element 20 during shooting, improving the brightness of the image, widening the shooting angle, and obtaining a more realistic image.
[0059] In some embodiments, as shown in Figure 7, a convex lens 1215 can be formed between the first inorganic sealing layer 170 and the organic sealing layer 171, with the convex surface of the convex lens 1215 facing away from the organic light-emitting functional layer. As light passes through the convex lens 1215, it is refracted and introduced into the photosensitive element 20, so that the photosensitive element 20 acquires more light, increasing the camera's light-gathering angle of view, increasing the amount of light collected, and improving the photographic visual effect of the photosensitive element 20.
[0060] It is understood that this convex lens 1215 can be made from the light-transmitting material 1214 described above, that is, the convex lens 1215 structure can be made by coating, exposure, development, and firing. Referring to Figures 8, 9, and 10, for example, after manufacturing the first inorganic encapsulation layer 170, the light-transmitting material 1214 is coated over the entire surface, or ODF or the like is dropped onto the first inorganic encapsulation layer 170 to form a high refractive index film layer. Then, a patterned high refractive index film is formed by exposure and development, and then the convex lens 1215 structure is formed through a predetermined firing process.
[0061] Since the light-transmitting material 1214 needs to be exposed, developed, and fired, the convex lens 1215 structure is placed between the first inorganic encapsulation layer 170 and the organic encapsulation layer 171 to avoid damage to the display light-emitting part 122 during the manufacturing process of the convex lens 1215. The organic encapsulation layer 171 can also serve a planarization role, that is, the side of the organic encapsulation layer 171 away from the first inorganic encapsulation layer 170 is planar.
[0062] In another embodiment, as shown in Figure 11, a light-transmitting material 1214 can be filled in the upper and / or lower part of the convex lens 1215 to allow more light to enter the photosensitive element 20 by refraction.
[0063] Furthermore, as shown in Figure 2, in order to avoid distortion and rounding of the image captured by the photosensitive element 20, the light-transmitting region 121 further comprises a compensating light-transmitting region 1211. The compensating light-transmitting region 1211 is formed at the rounded corner of the principal light-transmitting region 1210 and is spaced apart from the principal light-transmitting region 1210. The side of the compensating light-transmitting region 1211 closest to the rounded corner has a right-angle corner.
[0064] It can be seen that the right-angle corners of the compensated light transmission region 1211, which are closer to the rounded corners, can fill in the rounded corners of the principal light transmission region 1210, thus avoiding the curvature of the image and allowing for better restoration of the captured image.
[0065] Furthermore, as shown in Figures 3 and 6, the amount of light incident on the photosensitive element 20 can be increased by providing the same structure for the compensating light transmission region 1211 as for the principal light transmission region 1210 described above, that is, by creating light transmission holes 1213 at corresponding positions in the compensating light transmission region 1211 and filling the light transmission holes 1213 with a light-transmitting material 1214.
[0066] For example, the compensating light transmission region 1211 may have light-transmitting holes 1213 at positions corresponding to the pixel definition section 160, and may be spaced apart from the light-transmitting holes 1213 of the principal light transmission region 1210. That is, light-transmitting holes 1213 are provided in the shielding layer 18, sealing layer 17, display cathode 124, pixel definition section 160, and planarization layer 15 corresponding to the compensating light transmission region 1211, and the light-transmitting holes 1213 are filled with a light-transmitting material 1214. The light-transmitting materials 1214 of the principal light transmission region 1210 and the compensating light transmission region 1211 may be the same or different, and it is understood that the specific design may be carried out according to different embodiments. By expanding the compensating light transmission region 1211, the amount of light incident on the photosensitive element 20 can be increased, the brightness of the captured image can be improved, the visual effect of the image can be improved, and the amount of collectible content can be increased. Furthermore, a convex lens 1215 structure may be formed on the first inorganic encapsulation layer 170 and the organic encapsulation layer 171 in the compensated light transmission region 1211, and the convex lens 1215 in the compensated light transmission region 1211 and the convex lens 1215 in the principal light transmission region 1210 are spaced apart from each other. Specifically, the design of the structure of the convex lens 1215 in the principal light transmission region 1211 can be referenced as shown in Figures 7, 10, and 11.
[0067] Furthermore, the display cathodes 124 within the photosensitive display area 12 can be interconnected via a transparent metal material, thereby allowing the display cathodes 124 to be turned on / off with a single touch.
[0068] Furthermore, as shown in Figure 2, adjacent light-transmitting regions 121 share a compensating light-transmitting region 1211, saving space within the photosensitive display region 12 and allowing more pixel units 1200 to be placed.
[0069] Furthermore, as shown in Figure 2, the principal light transmission region 1210 has a first straight edge parallel to the first direction and a second straight edge parallel to the second direction, and the first and second directions are orthogonal to each other. The compensating light transmission region 1211 is a right rectangle, and the angle between the straight edge of the compensating light transmission region 1211 near the rounded corner and the first or second straight edge is in the range of 30° to 60°. For example, 30°, 45°, 60°, etc.
[0070] In one selective embodiment, the angles between the straight edge of the compensated light transmission region 1211 near the rounded corner and the first and second straight edges are all 45°. In this case, the right-angle inflection point of the compensated light transmission region 1211 near the first straight edge lies on the same line as the first straight edge. That is, the straight edge of the compensated light transmission region 1211 is positioned to be tangent to the rounded corner of the principal light transmission region 1210. By filling in the rounded corners of the compensated light transmission region 1211 and the principal light transmission region 1210, the rounding of the corners of the rectangular image can be avoided, and the image is guaranteed to be reliably restored.
[0071] In another selective embodiment, the right-angle inflection point of the compensating light transmission region 1211 near the first straight edge lies collinear with the first straight edge, and the right-angle inflection point of the compensating light transmission region 1211 near the second straight edge lies collinear with the second straight edge. This ensures that the rounded corners of the principal light transmission region 1210 are filled and compensated, thereby avoiding rounding of the corners of the rectangular image and guaranteeing that the image is reliably restored.
[0072] Of particular note are the distance between the rectangular compensated light transmission region 1211 and the rounded corner, and the distance between the rectangular compensated light transmission region 1211 and the pixel unit 1200, which are 3 μm or greater, for example, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, etc.
[0073] In this invention, the corresponding positions in the principal light transmission region 1210 and the compensation light transmission region 1211 are filled with a light-transmitting material 1214. Since the refractive index of the light-transmitting material 1214 is greater than that of the film layer surrounding the light-transmitting material 1214, light with a wide viewing angle can be incident on the photosensitive element 20 by refraction. In other words, more light can pass through the light-transmitting material 1214 and enter the photosensitive element 20, improving the brightness of the photosensitive element 20 and improving the reliability of the captured image. Furthermore, in this invention, in order to improve the diffraction phenomenon of light, the principal light transmission region 1210 is designed as a rounded rectangular structure, and a compensating light transmission region 1211 is formed at the rounded corner of the principal light transmission region 1210 to compensate for and fill in the edges of the rounded corners of the principal light transmission region 1210, thereby preventing the rectangular image from becoming rounded. The compensating light transmission region 1211 has a right-angle corner on the side close to the rounded corner, so that the image captured by the photosensitive element 20 is not distorted and the image can be restored more realistically.
[0074] (Example 2) The difference between Embodiment 2 and Embodiment 1 of the present invention is, as shown in Figure 12, that the compensating light transmission region 1211 includes at least two sub-light transmission regions 12110, the at least two sub-light transmission regions 12110 are spaced apart, and the orientations of the at least two sub-light transmission regions 12110 are coplanar with and intersect with the first and second directions. Each sub-light transmission region 12110 may be a right triangle, and the acute angle of the sub-light transmission region 12110 may be in the range of 30° to 60°, for example, 30°, 45°, or 60°. Furthermore, the right-angle corners of adjacent sub-light transmission regions 12110 are close to the rounded corners of different principal light transmission regions 1210, and adjacent principal light transmission regions 1210 can share this compensating light transmission region 1211.
[0075] In a selective embodiment, the acute angle of the sub-light-transmitting region 12110 is 45°. One right-angle side of the sub-light-transmitting region 12110 is parallel to the first direction, and the other right-angle side is parallel to the second direction, and in adjacent sub-light-transmitting regions 12110, the hypotenuse of one sub-light-transmitting region 12110 and the inflection point of the right-angle corner of the other sub-light-transmitting region 12110 are collinear.
[0076] Exemplary, the principal light-transmitting region 1210 has a rounded rectangular structure, and the compensating light-transmitting region 1211 contains two sub-light-transmitting regions 12110, the acute angles of the sub-light-transmitting regions 12110 being 45°. The two sub-light-transmitting regions 12110 are arranged along the diagonal extension direction of the principal light-transmitting region 1210, i.e., one right-angle side of the sub-light-transmitting region 12110 is parallel to the first direction, and the other right-angle side is parallel to the second direction. In one of the compensating light-transmitting regions 1211, the hypotenuse of one sub-light-transmitting region 12110 and the inflection point of the right-angle corner of the other sub-light-transmitting region 12110 are collinear. In other words, the right angle of one sub-light-transmitting region 12110 faces the rounded corner of the principal light-transmitting region 1210, and the right angle of the other sub-light-transmitting region 12110 faces the rounded corner of the adjacent principal light-transmitting region 1210. This fills in and compensates for the rounded corners of the principal light-transmitting region 1210, preventing the corners of the rectangular image from becoming rounded and ensuring the shooting effect.
[0077] In another selective embodiment, the acute angle of the sub-light-transmitting region 12110 is 45°. One right-angle side of the sub-light-transmitting region 12110 is parallel to the first direction, and the other right-angle side is parallel to the second direction. Alternatively, in adjacent sub-light-transmitting regions 12110, the hypotenuse of one sub-light-transmitting region 12110 and the inflection point of the right-angle corner of the other sub-light-transmitting region 12110 are collinear.
[0078] In other words, the acute angle of the sub-light-transmitting region 12110 is 45°, one right-angle side of the sub-light-transmitting region 12110 is parallel to the first direction, and the other right-angle side is parallel to the second direction. In adjacent sub-light-transmitting regions, the hypotenuse of one sub-light-transmitting region 12110 and the inflection point of the right-angle corner of the other sub-light-transmitting region 12110 may not lie on the same line.
[0079] In another selective embodiment, the acute angle of the sub-light-transmitting region 12110 is 45°. Alternatively, one right-angle side of the sub-light-transmitting region 12110 is parallel to the first direction, and the other right-angle side is parallel to the second direction. Alternatively, in adjacent sub-light-transmitting regions 12110, the hypotenuse of one sub-light-transmitting region 12110 and the inflection point of the right-angle corner of the other sub-light-transmitting region 12110 are collinear.
[0080] In other words, the acute angle of the sub-light-transmitting region 12110 is 45°, one right-angle side of the sub-light-transmitting region 12110 is not parallel to the first direction, the other right-angle side is not parallel to the second direction, and in adjacent sub-light-transmitting regions 12110, the hypotenuse of one sub-light-transmitting region 12110 and the inflection point of the right-angle corner of the other sub-light-transmitting region 12110 are not located on the same line.
[0081] In another selective embodiment, the acute angle of the sub-light-transmitting region 12110 is 45°. Alternatively, one right-angle side of the sub-light-transmitting region 12110 is parallel to the first direction, and the other right-angle side is parallel to the second direction. In adjacent sub-light-transmitting regions 12110, the hypotenuse of one sub-light-transmitting region 12110 and the inflection point of the right-angle corner of the other sub-light-transmitting region 12110 are collinear.
[0082] In other words, the acute angle of the sub-light-transmitting region 12110 is 45°, one right-angle side of the sub-light-transmitting region 12110 is not parallel to the first direction, and the other right-angle side is not parallel to the second direction. However, in adjacent sub-light-transmitting regions 12110, the hypotenuse of one sub-light-transmitting region 12110 and the inflection point of the right-angle corner of the other sub-light-transmitting region 12110 lie on the same line.
[0083] It should be noted that the distance from the edge of the principal light-transmitting region 1210 to each side of this sub-light-transmitting region 12110 is 3 μm or more, for example, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, etc.
[0084] In this invention, a right-angle corner is provided near the rounded corner of the compensation light transmission region 1211, compensating for and filling the rounded corner of the principal light transmission region 1210. This prevents the rectangular image from becoming rounded, ensuring that the image captured by the photosensitive element 20 is not distorted, and restoring a more realistic image.
[0085] (Example 3) This third embodiment provides a display device, which, as shown in Figures 3 to 11, comprises a display panel 10 as described in Embodiment 1 or Embodiment 2, and a photosensitive element 20 corresponding to a photosensitive display area 12. In this embodiment, by adopting a photosensitive display area 12 as in Embodiment 1 or Embodiment 2, the shooting brightness of the photosensitive element 20 is improved, and the shooting effect and shooting field of view of the photosensitive element 20 are further improved. In addition, by setting a rounded rectangular structure and right-angle corners, diffraction is improved and the roundness of the rectangular image can be avoided, resulting in a more realistic image captured by the photosensitive element 20 and a higher degree of restoration.
[0086] Furthermore, the terms “first,” “second,” and “third” are used solely for descriptive purposes and should not be understood as indicating or implying relative importance or the quantity of the technical features described. Therefore, features defined as “first,” “second,” and “third” explicitly or implicitly include one or more of these features. In the description of this application, “plural” means two or more unless otherwise specifically defined.
[0087] Note that terms such as "up," "down," "left," and "right" are used solely to distinguish and facilitate the explanation and do not restrict the direction of the embodiments of this application. For example, "up" may actually mean "down," "left," or "right." In this application, unless specifically limited, terms such as "assembly" and "connection" should be understood in a broad sense. For example, they may be fixed connections, removable connections or integrated connections, mechanical connections or electrical connections, direct connections or indirect connections via an intermediate medium, internal connections between two elements, or interactions between two elements. Those skilled in the art will be able to understand the specific meaning of the above terms in this application depending on the specific circumstances.
[0088] In this specification, the terms “several examples” and “exemplary” mean that the specific features, structures, materials, or properties described in relation to that example are included in at least one example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same example. Furthermore, the specific features, structures, materials, or properties described may be combined in appropriate ways in any one or more examples. Furthermore, a person skilled in the art may combine different examples and features of different examples described herein, provided that they do not conflict with each other.
[0089] Although embodiments of the present application have been described above, these embodiments are illustrative and should not be understood as limiting the present invention. A person ordinary in the art may modify, alter, replace, or improve the above embodiments without departing from the spirit of the present application. Accordingly, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of the present application. [Explanation of Symbols]
[0090] 10 Display Panel 11 Normal display area 12 Photosensitive display area 120 display pixel area 1200 pixel unit 1201 display subpixels 121 Light transmission area 1210 Main light transmission area 1211 Compensated light transmission area 12110 Sub-light transmission region 1213 Light transmission hole 1214 Light transmitting material 1215 Convex lens 122 Display light-emitting section 123 Display Anodes 124 Display Cathode 13 circuit boards 14. Drive circuit layer 15 Planarization layer 1. 6-pixel definition layer 160 Pixel Definition Section 161 pixel aperture 17. Sealing layer 170 First inorganic sealing layer 171 Organic sealing layer 172 Second inorganic sealing layer 18 Shielding layer 19. Color resist layer 190 Color Resist Section 100 base 110 Anti-reflection layer 20 photosensitive elements
Claims
1. A display panel having a photosensitive display area corresponding to a photosensitive element, The photosensitive display area comprises a plurality of display pixel areas arranged in a regular pattern, and a light-transmitting area located between adjacent display pixel areas, wherein the light-transmitting area is spaced apart from the display pixel areas, and the light-transmitting area is The principal light transmission region is a rounded rectangle, The system comprises a compensation light transmission region formed at the rounded corner of the principal light transmission region and spaced apart from the principal light transmission region, the compensation light transmission region having a right-angle corner on the side closer to the rounded corner. A display panel characterized by the following features.
2. In the display panel according to claim 1, The light-transmitting region is arranged around the display pixel region, and the compensating light-transmitting region is shared by the adjacent light-transmitting regions. A display panel characterized by the following features.
3. In the display panel according to claim 2, The principal light transmission region has a first straight edge parallel to the first direction and a second straight edge parallel to the second direction, and the first direction and the second direction are orthogonal to each other. The compensated light transmission region is a right rectangle, and the angle between the straight side of the compensated light transmission region near the rounded corner and the first or second straight side is in the range of 30° to 60°. A display panel characterized by the following features.
4. In the display panel according to claim 3, The angles between the straight edge of the compensated light transmission region near the rounded corner and the first straight edge and the second straight edge are all 45°, and / or The right-angle inflection point of the compensated light transmission region near the first straight edge lies on the same line as the first straight edge, and the right-angle inflection point of the compensated light transmission region near the second straight edge lies on the same line as the first straight edge. A display panel characterized by the following features.
5. In the display panel according to claim 2, The compensation light transmission region comprises at least two sub-light transmission regions, the at least two sub-light transmission regions are spaced apart, their arrangement directions are coplane with the first direction and the second direction, and intersect with them. The sub-light-transmitting region is a right-angled triangle, the acute angle of the sub-light-transmitting region is in the range of 30° to 60°, and the right-angled corners of adjacent sub-light-transmitting regions are close to the rounded corners of different principal light-transmitting regions. A display panel characterized by the following features.
6. In the display panel according to claim 5, The acute angle of the sub-light transmission region is 45°, and / or One right-angle side of the sub-light-transmitting region is parallel to the first direction, the other right-angle side is parallel to the second direction, and / or In adjacent sub-light-transmitting regions, the hypotenuse of one sub-light-transmitting region and the inflection point of the right-angle corner of the other sub-light-transmitting region lie on the same line. A display panel characterized by the following features.
7. In the display panel according to claim 1, The display panel comprises a substrate and a drive circuit layer, a planarization layer, a pixel definition layer, and a sealing layer sequentially formed on the substrate. The portions of the planarization layer, pixel definition layer, and sealing layer located in the principal light transmission region and the compensation light transmission region are light-transmitting portions, and the refractive index of at least one light-transmitting portion of the planarization layer, pixel definition layer, and sealing layer is greater than the refractive index of the other film layers surrounding the light-transmitting portion. A display panel characterized by the following features.
8. In the display panel according to claim 7, The display panel further comprises a shielding layer and a color resist layer formed on the side of the sealing layer away from the substrate, The color resist layer comprises multiple color resist portions of different colors, the colors of adjacent color resist portions are different, and the shielding layer is disposed between adjacent color resist portions. Light-transmitting holes are formed in the portions of the planarization layer, the pixel definition layer, the sealing layer, and the shielding layer corresponding to the principal light-transmitting region and the compensating light-transmitting region, and these light-transmitting holes are filled with a light-transmitting material. The refractive index of the light-transmitting material in the planarization layer, the pixel definition layer, and the sealing layer is greater than the refractive index of the other film layers surrounding the light-transmitting material. A display panel characterized by the following features.
9. In the display panel according to claim 1, The display panel comprises a substrate and a drive circuit layer, an organic light-emitting functional layer, and a sealing layer sequentially formed on the substrate, wherein the sealing layer comprises a first inorganic sealing layer, an organic sealing layer, and a second inorganic sealing layer arranged sequentially. Between the first inorganic encapsulation layer and the organic encapsulation layer, a convex lens is formed in the principal light transmission region and the compensatory light transmission region, and the convex surface of the convex lens faces away from the organic light-emitting functional layer. A display panel characterized by the following features.
10. In the display panel according to claim 1, The aforementioned display pixel area comprises multiple pixel units, each pixel unit comprises multiple display subpixels of different colors, and the different display subpixels are spaced apart in the row direction. A display panel characterized by the following features.
11. In the display panel according to claim 10, Each display subpixel is equipped with one display light-emitting diode, the display light-emitting diode is equipped with a display light-emitting section, and the display light-emitting section is formed in an organic light-emitting functional layer. A display panel characterized by the following features.
12. In the display panel according to claim 7, The planarization layer is provided on the side of the drive circuit layer away from the substrate so as to planarize the drive circuit layer. A display panel characterized by the following features.
13. In the display panel according to claim 7, The pixel definition layer has a plurality of pixel apertures arranged at intervals and a pixel definition portion located between adjacent pixel apertures, and the surface of the pixel definition portion away from the substrate is planar. A display panel characterized by the following features.
14. In the display panel according to claim 13, The indicator light-emitting diode further comprises an indicator anode and a indicator cathode, wherein the indicator anode is located on the side of the indicator light-emitting portion closer to the substrate, and the indicator cathode is located on the side of the indicator light-emitting portion further from the substrate. A display panel characterized by the following features.
15. In the display panel according to claim 14, The display anode comprises a first conductive layer, the first conductive layer being formed on the side of the planarization layer away from the drive circuit layer and positioned between the planarization layer and the pixel definition layer. A display panel characterized by the following features.
16. In the display panel according to claim 15, The first conductive layer has a multilayer structure, and the first conductive layer comprises at least sequentially stacked reflective layers and high work function material layers. A display panel characterized by the following features.
17. In the display panel according to claim 15, The number of the display light-emitting units is the same as the number of the pixel apertures, and they correspond one-to-one. A display panel characterized by the following features.
18. In the display panel according to claim 1, The display panel further comprises a sealing layer, the sealing layer being located on the side of the display light-emitting diode away from the substrate, and the sealing layer comprising a first inorganic sealing layer, an organic sealing layer, and a second inorganic sealing layer sequentially stacked. A display panel characterized by the following features.
19. In the display panel according to claim 1, The display panel further comprises a shielding layer and a color resist layer formed on a second inorganic sealing layer, the color resist layer comprising a plurality of color resist portions arranged at intervals from each other, and the colors of adjacent color resist portions are different. The display panel further comprises a base and an anti-reflective layer, the anti-reflective layer being located on the side of the color resist layer and the shielding layer away from the second inorganic encapsulation layer. A display panel characterized by the following features.
20. The display panel and photosensitive element are provided according to any one of claims 1 to 19, wherein the photosensitive element corresponds to the photosensitive display area. A display device characterized by the following features.