CN112259575B - Display panel and electronic terminal - Google Patents
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- CN112259575B CN112259575B CN202011017321.4A CN202011017321A CN112259575B CN 112259575 B CN112259575 B CN 112259575B CN 202011017321 A CN202011017321 A CN 202011017321A CN 112259575 B CN112259575 B CN 112259575B
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- 239000000463 material Substances 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims description 138
- 239000002346 layers by function Substances 0.000 claims description 66
- 239000003086 colorant Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 239000012780 transparent material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
- H10K59/65—OLEDs integrated with inorganic image sensors
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- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application relates to a display panel and an electronic terminal, wherein the display panel is divided into a first area and a second area, the luminous brightness of the first area is lower than that of the second area under the same gray level, the display panel comprises a light guide structure, at least part of the light guide structure is made of a light-transmitting material and is positioned between the first area and the second area and used for increasing the light quantity transmitted by the second area to the first area.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and an electronic terminal.
Background
With the continuous development of display technology, users have increasingly higher requirements on electronic terminals. At present, in order to make the display area realize a larger area, an electronic terminal (such as a mobile phone) is provided with a sensor, a fingerprint identification sensor and other structures positioned on a display screen in a traditional electronic terminal so as to remarkably improve the screen occupation ratio and increase the area of the display area.
With the development of full-screen technology, the technology of placing electronic components such as cameras under a display screen is a development trend. Because the top of the screen of the display screen is required to be provided with elements such as a camera, an inductor and a receiver, a part of area is reserved at the top of the screen of the display screen in the related art for installing electronic elements, so that the overall consistency of the screen is affected, and the display effect is affected.
Disclosure of Invention
In view of the above, the present application mainly solves the technical problem of providing a display panel and an electronic terminal, which can improve the display effect.
In order to solve the technical problems, the application adopts a technical scheme that: the display panel is divided into a first area and a second area, the luminous brightness of the first area is lower than that of the second area under the same gray scale, the display panel comprises a light guide structure, at least part of the light guide structure is made of a light-transmitting material and is positioned between the first area and the second area and used for increasing the quantity of light transmitted from the second area to the first area.
The light guide structure comprises a pixel definition structure, and the side wall surface of one side, deviating from the first area, of the pixel definition structure is an arc concave surface.
The side wall surface of the pixel definition structure facing to one side of the first area is a plane or a convex surface. The light guide structure comprises a pixel definition structure and a light reflecting layer, wherein the light reflecting layer is positioned on the pixel definition structure at the light emitting side of the display panel.
The display panel comprises a first electrode layer, wherein the first electrode layer is positioned on the pixel definition structure; the reflective layer is located between the pixel defining structure and the first electrode layer, or the reflective layer is located at a side of the first electrode layer facing away from the pixel defining structure.
Wherein, the material of the reflective layer is the same with the material of the first electrode layer.
Wherein, the luminous color of the adjacent luminous functional layer at one side of the light guide structure is the same as the luminous color of the adjacent luminous functional layer at the other side of the light guide structure.
Wherein, the light guiding structure deviates from one side of the first area, and all luminous functional layers adjacent to the light guiding structure have the same luminous color; the light guide structure is close to one side of the first area, and all luminous functional layers adjacent to the light guide structure have the same luminous color.
Wherein, the light guide structure deviates from one side of the first area, and all luminous functional layers adjacent to the light guide structure have different luminous colors which are not completely the same, and the different luminous functional layers are alternately arranged; all luminous functional layers adjacent to the light guide structure are not identical in luminous color and are alternately distributed.
The application also comprises a second technical scheme, and the electronic terminal comprises the display panel and the under-screen photosensitive element.
The beneficial effects of the application are as follows: compared with the prior art, the application provides the display panel, by arranging the light guide structure between the first area and the second area, the transmission quantity of the light rays of the second area to the first area is increased, the light-emitting brightness of the second area can be reduced, the light-emitting brightness of the first area is enhanced, the display picture with saw-tooth-shaped display edge of the second area caused by over-bright display of the second area and over-dark display of the first area is improved, or the occurrence of the phenomenon that the saturation difference between the second area and the first area is obvious is improved, and the display transition between the first area and the second area is natural.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of a display panel according to the present application;
FIG. 2 is a schematic diagram of an embodiment of a display panel according to the present application;
FIG. 3 is a schematic diagram of a partially enlarged embodiment of FIG. 2;
FIG. 4 is a schematic view of a further embodiment of FIG. 2 in partial enlargement;
FIG. 5a is a schematic cross-sectional view of an embodiment of FIG. 3 along line A-A';
FIG. 5b is a schematic cross-sectional view of another embodiment of FIG. 3 along line A-A';
FIG. 6 is a schematic diagram showing an embodiment of the arrangement of luminescent colors of luminescent functional layers in a partial region of a display panel according to the present application;
Fig. 7 is a schematic view of another embodiment of the arrangement of luminescent colors of the luminescent functional layer in a partial area of the display panel according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.
As shown in fig. 1 and fig. 2, the embodiment of the present application provides a display panel, wherein the display panel is divided into a first area 30 and a second area 40, and the light-emitting brightness of the first area 30 is lower than the light-emitting brightness of the second area 40 under the same gray scale, and the display panel includes a light guiding structure, at least a portion of which is made of a light-transmitting material, and is located between the first area 30 and the second area 40, so as to increase the amount of light transmitted from the second area 40 to the first area 30.
The above is the core content of the embodiment of the present application, by setting the light guiding structure between the first area 30 and the second area 40, the transmission amount of the light of the second area 40 to the first area 30 is increased, the display brightness of the second area 40 can be reduced, the display brightness of the first area 30 is enhanced, the display frame with jaggy display edge of the second area 40 caused by excessively bright display of the second area 40 and excessively dark display of the first area 30 is improved, or the occurrence of the phenomenon that the saturation difference between the second area 40 and the first area 30 is obvious is improved, so that the display transition between the first area 30 and the second area 40 is natural.
The "light-emitting brightness" refers to a luminous flux emitted by a unit area of the display panel at the same gray scale, wherein the light-emitting brightness of the first region 30 is a luminous flux of the first region 30 of the display panel at a unit area, for example, a luminous flux of one square centimeter at 255 gray scales; the light emission luminance of the second region 40 refers to the luminous flux per unit area of the second region 40 of the display panel at the same gray scale, and the light emission luminance of the first region 30 and the second region 40 may be obtained by obtaining the average luminance.
In the embodiment of the present application, the first area 30 corresponds to an area under the display screen where the photosensitive element is disposed, for example, an area under the photosensitive element such as a camera, a sensor, and the like. In other embodiments, the first region 30 may also correspond to the region of the under-screen photosensitive element and the non-photosensitive element, for example, the region under the electronic element such as a camera, a sensor, a headphone, etc.
Specifically, the display panel of the embodiment of the application includes a pixel defining layer 10 and a light emitting function layer 20, the pixel defining layer 10 includes pixel defining structures 12 and pixel openings 11 located between adjacent pixel defining structures 12, and the light emitting function layer 20 is at least partially located within the pixel openings 11. In the embodiment of the present application, the light emitting functional layer covers the pixel opening range and the pixel defining structure 12 of the pixel defining layer. In other embodiments, the light emitting functional layer may cover only the pixel opening range.
The light emitting functional layer 20 in the embodiment of the present application includes a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, and the like.
Specifically, the light guiding structure includes a pixel defining structure 12, and a sidewall surface of the side of the pixel defining structure 12 facing away from the first region 30 is an arc concave surface.
In the embodiment of the present application, the pixel defining structure 12 is made of a light-transmitting material, and the light guiding structure includes the pixel defining structure 12 between the first area 30 and the second area 40, for convenience of distinction, where the pixel defining structure 12 located between the first area 30 and the second area 40 is named as a first pixel defining structure 121; the pixel definition structure 12 within the second region 40 is named second pixel definition structure 122.
In the embodiment of the present application, the sidewall surface of the side of the first pixel defining structure 121 facing away from the first area 30 is an arc concave surface. The first pixel defining structure 121 is made of a transparent material capable of transmitting light, and specifically, the first pixel defining structure 121 is made of a transparent material or a semitransparent material. Specifically, the first pixel defining structure 121 in the embodiment of the present application is a light-transmitting photoresist.
Specifically, the sidewall surface of each first pixel defining structure 121 corresponding to each pixel opening 11 on the side facing away from the first area 30 is a single arc concave surface.
In one embodiment of the present application, FIG. 1 is a cross-sectional view of one embodiment of FIG. 3 taken along line A-A'. As shown in fig. 1, a sidewall surface of the first pixel defining structure 121 facing away from the first region 30 is an arc-shaped concave surface 1211. The light emitted by the light emitting function layer 20 in the pixel opening 11 adjacent to the first pixel defining structure 121 in the second area 40 may be transmitted into the pixel opening 11 of the first area 30 through the arc concave surface 1211 of the first pixel defining structure 121, and the first pixel defining structure 121 is provided with the arc concave surface 1211, so that when the first pixel defining structure 121 is transmitted from the second area 40 through the first pixel defining structure 121 of the arc concave surface 1211, the light scattering capability is enhanced, and the light intensity transmitted to the pixel opening 11 of the first area 30 is increased, so that the light emitting intensity of the first area 30 is enhanced. In the embodiment of the present application, the sidewall surface of the first pixel defining structure 121 facing away from the first area 30 is an arc concave surface 1211, and the amount of light transmitted to the first area 30 by the second area 40 is increased relative to the case that the side surface of the conventional pixel defining structure 12 is a plane and the materials of the pixel defining structures 12 are the same, or the case that the pixel defining structures 12 are made of opaque materials.
In this embodiment of the present application, as further shown in fig. 1, a sidewall surface of the pixel defining structure 12 facing the first area 30 is a plane or a convex surface. Specifically, the side wall surface of the first pixel defining structure 121 facing the side of the first region 30 is a plane, and by setting the side wall of the first pixel defining structure 121 between the second region 40 and the first region 30 facing the side of the first region 30 to be a plane, it is possible to make the amount of transmitted light smaller when the light emitted from the light emitting function layer 20 in the pixel opening 11 of the first region 30 adjacent to the first pixel defining structure 121 is transmitted into the pixel opening 11 of the second region 40 through the first pixel defining structure 121, thereby making the light intensity in the pixel opening 11 at the first region 30 adjacent to the second region 40 enhanced. In other embodiments, the sidewall surface of the first pixel defining structure 121 facing the first area 30 may be convex, so that the light transmission amount of the light emitted from the light emitting functional layer 20 in the pixel opening 11 of the first area 30 through the first pixel defining structure 121 to the pixel opening 11 of the second area 40 is reduced, the light transmission amount of the light transmitted from the second area 40 to the first area 30 through the first pixel defining structure 121 is increased, and the light intensity of the first area 30 adjacent to the second area 40 is increased, and the light transmitted from the second area 40 to the first area 30 through the first pixel defining structure 121 is converged in the pixel opening 11 of the first area 30, so that the light intensity of the first area 30 adjacent to the second area 40 is increased, and the transition between the first area 30 and the second area 40 is natural.
As shown in fig. 1 and 2, in the embodiment of the present application, the shape of the first area 30 is rectangular, and a concave shape is formed between the second area 40 and the adjacent first area 30, wherein the first pixel defining structure 121 between the second area 40 and the first area 30 is divided into a left pixel defining structure, a right pixel defining structure and a bottom pixel defining structure, and the bottom pixel defining structure is located between the left pixel defining structure and the right pixel defining structure. In the embodiment of the present application, a side wall surface of the left pixel defining structure, which is close to the left second area 40, is provided with an arc concave surface 1211; a side wall surface of the right pixel defining structure near the right second region 40 is provided as an arc concave surface 1211, and a bottom pixel defining structure near a side wall surface of the lower second region 40 is provided as an arc concave surface 1211.
In the embodiment of the present application, the side surface of the first pixel defining structure 121 of the pixel defining layer 10 is provided with the arc-shaped concave surface 1211, and the arc-shaped concave surface 1211 can be formed on the side wall of the first pixel defining structure 121 at the corresponding position by controlling the light transmittance of the halftone mask to be gradually changed by adopting the halftone mask when the pixel opening 11 of the pixel defining layer 10 is manufactured.
In another embodiment of the present application, as further shown in fig. 5a, the light guiding structure includes a pixel defining structure 12 and a reflective layer 50, and the reflective layer 50 is located on the pixel defining structure 12 on the light emitting side of the display panel. The light reflecting layer 50 can reflect light, and the emergent quantity of the light passing through the position of the light reflecting layer 50 is reduced. The pixel defining structure 12 is made of a transparent material, and the reflective layer 50 is made of a translucent material or a non-transparent material.
Specifically, the light reflecting layer 50 is located on the first pixel defining structure 121 of the second area 40 adjacent to the light emitting side of the display panel of the first area 30. In the embodiment of the application, when the reflective layer 50 is disposed on the first pixel defining structure 121 of the second area 40 adjacent to the light emitting side of the display panel of the first area 30, the light emitted from the light emitting functional layer 20 in the pixel opening 11 of the second area 40 adjacent to the first area 30 is reflected by the reflective layer 50 and is transmitted into the pixel opening 11 of the first area 30, so that the light emitted from the light emitting functional layer 20 in the pixel opening 11 of the second area 40 adjacent to the first area 30 is reduced from being emitted along the top (light emitting side of the display panel) of the first pixel defining structure 121, and the light emitted from the light emitting functional layer 20 in the pixel opening 11 of the second area 40 adjacent to the first area 30 is reflected by the reflective layer 50 and is transmitted into the pixel opening 11 of the first area 30, so that the light emitting brightness in the pixel opening 11 of the first area 30 is enhanced, and the jagged display screen caused by the second area 40 being excessively bright and the first area 30 being excessively dark is improved, so that the transition between the first area 40 and the second area 40 and the natural display area 30 is realized. In the embodiment of the present application, the light reflecting layer 50 may be a material having light reflecting property, for example, a metal layer having light reflecting function.
In another embodiment of the present application, as shown in fig. 1 and 5a, the display panel includes a first electrode layer 21, where the first electrode layer 21 is located on the light emitting side of the light emitting functional layer 20; part of the first electrode layer 21 is located in the pixel opening 11, and the remaining first electrode layer 21 is located on the pixel defining structure 12 on the light emitting side of the display panel in the second region 40 and the first region 30.
In the embodiment of the present application, the first electrode layer 21 is a cathode layer, and the cathode layer has a capability of reflecting light, and meanwhile, the thinner the cathode layer is, the stronger the light transmittance is, and the thicker the cathode layer is, the weaker the light transmittance is. In the embodiment of the present application, the display panel further includes an anode layer 23 disposed on the substrate 60, the light emitting function layer 20 is disposed on the anode layer 23, and the cathode layer is disposed on the light emitting function layer 20. In the embodiment of the present application, the cathode layer has a certain light transmittance, so that the light emitted by the light-emitting functional layer 20 can be emitted along the cathode layer in the pixel opening 11. In the embodiment of the present application, the cathode layer covers the pixel defining structure 12 on the light emitting side of the display panel of the pixel defining layer 10, so that the light output of the display panel through the top (light emitting side of the display surface) of the pixel defining structure 12 between the pixel openings 11 in the first region 30 can be reduced or improved, and the amount of light output of the display panel through the top (light emitting side of the display surface) of the pixel defining structure 12 between the pixel openings 11 in the second region 40 can be reduced or improved, thereby improving the color mixing condition of the display panel. In the embodiment of the application, when the cathode layer is manufactured, the cathode layer covers the light-emitting functional layer 20 in the pixel opening 11, and simultaneously, the cathode layer covers the pixel defining structure 12 of the first electrode layer 21 positioned on the light emitting side of the display panel in the second area 40 and the first area 30, so that the effect of improving the color mixing of the display panel can be achieved, and meanwhile, the manufacturing steps are not increased. In the embodiment of the present application, the cathode layer may be made of Mg: in other embodiments, the cathode layer may be made of Al. In other embodiments, a portion of the first electrode layer 21 may be located in the pixel opening 11, and the remaining first electrode layer 21 is located on the first pixel defining structure 121, so that the amount of light emitted from a position between the first region 30 and the second region 40 may be reduced.
In the embodiment of the present application, as shown in fig. 5a, the first electrode layer 21 and the reflective layer 50 are sequentially disposed on the first pixel defining structure 121 of the second area 40 adjacent to the light emitting side of the display panel of the first area 30, such that the first electrode layer 21 is located between the reflective layer 50 and the pixel defining structure 12. In another embodiment, the reflective layer 50 and the first electrode layer 21 are sequentially disposed on the first pixel defining structure 121 of the second area 40 adjacent to the light emitting side of the display panel of the first area 30, such that the reflective layer 50 is located between the first electrode layer 21 and the first pixel defining structure 121, i.e. the reflective layer 50 is located on the side of the first electrode layer 21 facing away from the pixel defining structure 12.
In an embodiment of the present application, as shown in fig. 5a, the reflective layer 50 and the first electrode layer 21 are made of the same material as the first electrode layer 21, and the thickness sum L of the reflective layer 50 and the first electrode layer 21 on the first pixel defining structure 121 adjacent to the first region 30 in the second region 40 is greater than the thickness H of the first electrode layer 21 on the first pixel defining structure 121 in the second region 40 and the first region 30. When the materials of the reflective layer 50 and the first electrode layer 21 are the same, which is equivalent to making the thickness of the cathode layer on the first pixel defining structure 121 greater than the thickness of the cathode layer on the second pixel defining structure 122, by increasing the thickness of the cathode layer on the first pixel defining structure 121, the light transmission amount of the cathode layer on the first pixel defining structure 121 can be reduced, the transverse transmission light amount per unit area of the first pixel defining structure 121 can be increased, the light amount transmitted to the first region 30 by the second region 40 can be enhanced, and the light intensity in the pixel opening 11 of the first region 30 near the second region 40 can be enhanced. In the embodiment of the application, the materials of the reflective layer 50 and the first electrode layer 21 are the same, so that the vapor deposition chamber does not need to be replaced when the reflective layer 50 and the first electrode layer 21 are manufactured by vapor deposition during manufacturing the display panel, the manufacturing time of the display panel is saved, and the cost of production line equipment for manufacturing the display panel is not increased. In the embodiment of the present application, when the cathode layer is manufactured, after the light-emitting function layer 20 is manufactured in the pixel opening 11 of the pixel defining layer 10, a layer of cathode layer is manufactured, so that the cathode layer covers the pixel defining layer 10 and the light-emitting function layer 20 in the pixel opening 11; and then, manufacturing a cathode layer on the first pixel defining structure 121 by using a mask plate, so that the thickness of the cathode layer on the first pixel defining structure 121 is larger than that of the cathode layer on the second pixel defining structure 122. In another embodiment, a cathode layer may be fabricated on the first pixel defining structure 121 by using a mask, and then a cathode layer may be fabricated on the pixel defining layer 10 and the light emitting functional layer 20 in the pixel opening 11. Such that the thickness of the cathode layer on the first pixel defining structure 121 is greater than the thickness of the cathode layer on the second pixel defining structure 122. In the embodiment of the present application, the materials of the reflective layer 50 and the first electrode layer 21 are Mg: in other embodiments, the reflective layer 50 and the first electrode layer 21 may be made of Al. In other embodiments, the reflective layer 50 and the first electrode layer 21 may be made of different materials, for example, the reflective layer 50 is made of Ag, and the first electrode layer 21 is made of Al.
In yet another embodiment of the present application, as shown in fig. 5b, the light guiding structure includes a pixel defining structure 12 and a light reflecting layer 50, wherein the light reflecting layer 50 is located on the pixel defining structure 12 on the light emitting side of the display panel, and a side wall surface of the pixel defining structure 12 facing away from the first area 30 is an arc concave 1211. That is, the sidewall surface of the first pixel defining structure 121 facing away from the first region 30 is an arc concave surface 1211, and the reflective layer 50 is located on the first pixel defining structure 121. In the embodiment of the present application, the light reflecting layer 50 is located on the first electrode layer 21 of the first pixel defining structure 121, and in other embodiments, the light reflecting layer 50 is located between the first pixel defining structure 121 and the first electrode layer 21; the light guide structure of the embodiment of the present application may increase the intensity of the light transmitted from the second region 40 to the pixel opening 11 of the first region 30 through the first pixel defining structure 121; on the other hand, in the process of transmitting light from the second region 40 to the first region 30 through the reflective layer 50, the light emitted along the top (light emitting side of the display panel) of the first pixel defining structure 121 is reduced, the amount of light transmitted from the second region 40 to the first region 30 is increased, and the light guiding efficiency of the light guiding structure is improved. The jagged display screen caused by the fact that the second area 40 is displayed too bright and the first area 30 is displayed too dark is improved to a large extent, so that the display transition between the first area 30 and the second area 40 is natural.
In the embodiment of the present application, the light emitting color of the adjacent light emitting functional layer 20 on one side of the light guiding structure is the same as the light emitting color of the adjacent light emitting functional layer 20 on the other side of the light guiding structure, i.e. the light emitting color of the adjacent light emitting functional layer 20 on one side of the first pixel defining structure 121 is the same as the light emitting color of the adjacent light emitting functional layer 20 on the other side of the first pixel defining structure 121. By arranging the light emitting functional layers 20 on both sides of the first pixel defining structure 121 to emit light with the same color, when the light of the light emitting functional layer 20 in the pixel opening 11 of the second area 40 is transmitted into the pixel opening 11 of the first area 30, the light intensity in the pixel opening 11 of the first area 30 can be enhanced, and the display cross color condition of the display panel can be reduced.
In an embodiment of the present application, as shown in fig. 4 and fig. 6, the side of the light guiding structure facing away from the first area 30, and all the light emitting functional layers 20 adjacent to the light guiding structure have the same light emitting color; all the light-emitting functional layers 20 adjacent to the light-guiding structure 30 and on the side of the light-guiding structure close to the first region 30 emit light with the same color. That is, all the light emitting functional layers 20 adjacent to the first pixel defining structure 121 on the side facing away from the first region 30 have the same light emitting color; all light emitting functional layers 20 adjacent to the first pixel defining structure 121 on the side of the first region 30 emit light in the same color. I.e. the light emitting functional layer 20 within several pixel openings 11 in the first region 30 adjacent to the second region 40 emits light of the same color; the light emitting functional layers 20 within the several pixel openings 11 in the second region 40 adjacent to the first region 30 emit light of the same color. In the embodiment of the present application, the arrangement and combination of the plurality of pixel openings 11 in the first area 30 adjacent to the second area 40 are a first pixel opening group 70, the arrangement and combination of the plurality of pixel openings 11 in the second area 40 adjacent to the first area 30 are a second pixel opening group 80, and the first pixel opening group 70 and the second pixel opening group 80 are concave. In an embodiment of the present application, the light emitting functional layers 20 in the first pixel opening group 70 emit light with the same color, for example, all red light; the light emitting function layer 20 in the second pixel opening group 80 emits light in the same color, and the light emitting function layer 20 in the second pixel opening group 80 emits light in the same color as the light emitting function layer 20 in the first pixel opening group 70, which is red light. In other embodiments, the light emitting functional layers 20 in the first pixel opening group 70 emit light with the same color, or may be green light or blue light; the light emitting functional layers 20 in the second pixel opening group 80 may emit green light or blue light in the same color.
In another embodiment, continuing to refer to FIG. 4, the first pixel opening group 70 includes a left pixel opening group I71 on the left side, a right pixel opening group I72 on the right side, and a bottom pixel opening group I73 on the bottom side; the second pixel opening group 80 includes a left pixel opening group two 81 located on the left side, a right pixel opening group two 82 located on the right side, and a bottom pixel opening group two 83 located on the bottom. The light emitting functional layers 20 in the first left pixel opening group 71 and the second left pixel opening group 81 emit red light, for example; the light emitting functional layers 20 in the first right pixel opening group 72 and the second right pixel opening group 82 emit light in the same color, for example, green light; the light emitting functional layers 20 in the first bottom pixel opening group 73 and the second bottom pixel opening group 83 emit light in the same color, for example, blue light. In other embodiments, the light emitting functional layers 20 in the first left pixel opening group 71 and the second left pixel opening group 81 have the same light emitting color, for example, green light; the light emitting functional layers 20 in the first right pixel opening group 72 and the second right pixel opening group 82 emit light in the same color, for example, green light, red light or blue light; the light emitting functional layer 20 in the first bottom pixel opening group 73 and the second bottom pixel opening group 83 emits light in the same color, for example, blue light, green light, or red light. By providing the same side with the light emitting function layer 20 having the same light emitting color of the plurality of pixel openings 11 in the first region 30 adjacent to the second region 40 as the plurality of pixel openings 11 in the second region 40 adjacent to the first region 30, the light intensity of the first region 30 adjacent to the second region 40 can be enhanced, and the influence of cross color can be reduced.
In yet another embodiment, as further shown in fig. 4 and 7, all the light-emitting functional layers 20 adjacent to the light-guiding structure on the side of the light-guiding structure facing away from the first region 30 have a non-identical light-emitting color, and the different light-emitting functional layers 20 are alternately arranged; all the light-emitting functional layers 20 adjacent to the light-guiding structure, which are adjacent to the first region 30, have different light-emitting functional layers 20 arranged alternately.
That is, all the light emitting functional layers 20 adjacent to the first pixel defining structure 121 on the side facing away from the first region 30 have the same light emitting color, and the different light emitting functional layers 20 are alternately arranged; all light emitting functional layers 20 adjacent to the first pixel defining structure 121 on the side close to the first region 30 have the same light emitting color, and different light emitting functional layers 20 are alternately arranged. And the light emitting function layers 20 adjacent to both sides of the first pixel defining structure 121 emit light in the same color. That is, the light emitting function layers 20 in the plurality of pixel openings 11 adjacent to the second region 40 are different in light emitting color, and the light emitting function layers 20 of different light emitting colors are arranged in an array; the light emitting function layers 20 in the pixel openings 11 nearest to the first region 30 have different light emitting colors, and the light emitting function layers 20 with different light emitting colors are arranged in an array; the color of the light received by the pixel opening 11 is the same as the color of the light emitted by the light emitting functional layer 20 in the pixel opening 11, so that when the second region 40 is transmitted into the pixel opening 11 of the first region 30 through the pixel defining structure 12, the light intensity enhancement in the pixel opening 11 of the first region 30 adjacent to the second region 40 can be enhanced, and the cross color phenomenon can be improved.
In the embodiment of the present application, as shown in fig. 4 and 7, the light emitting functional layers 20 with different light emitting colors in the pixel openings 11 in the first pixel opening group 70 are arranged in an array, and the light emitting functional layers 20 in the pixel openings 11 in the second pixel opening group 80 are arranged in an array, for example, the light emitting functional layers 20 in the first pixel opening group 71 are arranged in a red, green and blue array sequentially, the light emitting functional layers 20 in the second pixel opening group 81 are also arranged in a red, green and blue array sequentially, and the first pixel opening group 71 corresponds to the pixel openings 11 of the second pixel opening group 81 one by one, so that the red light emitted by the light emitting functional layers 20 in the first pixel opening group 71 is transmitted to the second pixel opening group 81 through the pixel defining structure 12, and the light emitting functional layers 20 in the second pixel opening group 81 emit red light; the green light emitted from the light emitting function layer 20 in the first left pixel opening group 71 is transmitted to the second left pixel opening group 81 through the pixel defining structure 12, and the green light emitted from the light emitting function layer 20 in the second left pixel opening group 81 is also emitted; so that blue light emitted from the light emitting functional layer 20 in the first left pixel opening group 71 is transmitted to the second left pixel opening group 81 through the pixel defining structure 12, and the light emitted from the light emitting functional layer 20 in the second left pixel opening group 81 is also blue light.
The application also comprises a second technical scheme, and the electronic terminal comprises the display panel. The electronic terminal provided by the embodiment of the application adopts the display panel and the under-screen photosensitive element. In the embodiment of the application, the under-screen photosensitive element is arranged below the first area 30 of the display panel, the light transmittance of the first area 30 of the display panel is higher, the influence on the under-screen photosensitive element can be reduced, but the light-emitting brightness of the first area 30 under the same gray scale is smaller than that of the second area 40 under the same gray scale.
The foregoing is only the embodiments of the present application, and therefore, the patent scope of the application is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the application.
Claims (8)
1. A display panel is characterized by being divided into a first area and a second area, wherein the light-emitting brightness of the first area is lower than that of the second area under the same gray scale,
The display panel comprises a light guide structure, wherein at least part of the light guide structure is made of a light-transmitting material and is positioned between the first area and the second area and used for increasing the quantity of light transmitted from the second area to the first area, the light guide structure comprises a pixel definition structure and a light reflecting layer, and the light reflecting layer is positioned on the pixel definition structure at the light emitting side of the display panel;
the display panel comprises a first electrode layer which is positioned on the pixel definition structure;
The reflective layer is located between the pixel defining structure and the first electrode layer, or located at one side of the first electrode layer away from the pixel defining structure.
2. The display panel of claim 1, wherein the display panel comprises,
The side wall surface of one side of the pixel definition structure, which is away from the first area, is an arc concave surface.
3. The display panel of claim 2, wherein the display panel comprises,
The side wall surface of the pixel definition structure facing to one side of the first area is a plane or a convex surface.
4. The display panel of claim 1, wherein the reflective layer is the same material as the first electrode layer.
5. The display panel of claim 1, wherein the luminescent functional layer adjacent to one side of the light guiding structure emits light in the same color as the luminescent functional layer adjacent to the other side of the light guiding structure.
6. The display panel of claim 5, wherein all light-emitting functional layers adjacent to the light-guiding structure on a side of the light-guiding structure facing away from the first region emit light of the same color; and the light emitting color of all the light emitting functional layers adjacent to the light guide structure is the same.
7. The display panel according to claim 5, wherein the light guiding structure faces away from the first area, and all light emitting functional layers adjacent to the light guiding structure are not identical in light emitting color, and different light emitting functional layers are alternately arranged;
The light guide structure is close to one side of the first area, the light emitting colors of all the light emitting functional layers adjacent to the light guide structure are not identical, and different light emitting functional layers are alternately arranged.
8. An electronic terminal comprising the display panel of any one of claims 1-7 and an under-screen photosensitive element.
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