CN114695427A

CN114695427A - Display panel and display device

Info

Publication number: CN114695427A
Application number: CN202210435452.7A
Authority: CN
Inventors: 余艳平; 郑泽源; 周婷; 李俊谊
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-07-01

Abstract

The application discloses display panel and display device, display panel includes base plate and light-emitting component layer, the light-emitting component layer is formed in base plate one side, including a plurality of pixels, every pixel includes red sub-pixel, green sub-pixel and blue sub-pixel, arbitrary two homogeneous phase adjacent settings in red sub-pixel, green sub-pixel and the blue sub-pixel, red sub-pixel is including holding the chamber, blue sub-pixel and green sub-pixel at least part hold in holding the chamber, blue sub-pixel and green sub-pixel's area all is less than red sub-pixel's area. The application provides a display panel has promoted red subpixel's luminous luminance, makes red subpixel, green subpixel and blue subpixel's colour mixture effect better simultaneously to promote display panel's display effect.

Description

Display panel and display device

Technical Field

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

Background

Micro-LED (Micro light emitting diode) display technology is gradually becoming the mainstream product of next generation display due to its characteristics of low power consumption, long service life, high brightness, etc. In the current Micro-LED display panel, the luminous efficiency of a red sub-pixel is insufficient, and the normal display requirement is difficult to meet.

Disclosure of Invention

The embodiment of the application provides a display panel and a display device, the display panel improves the luminous brightness of red sub-pixels, and meanwhile, the color mixing effect of the red sub-pixels, the green sub-pixels and the blue sub-pixels is better, so that the display effect of the display panel is improved.

An embodiment of the first aspect of the embodiment of the present application provides a display panel, including substrate and light-emitting element layer, light-emitting element layer form in substrate one side, including a plurality of pixels, each pixel includes red subpixel, green subpixel and blue subpixel, red subpixel any two in the green subpixel with in the blue subpixel are adjacent to set up, red subpixel is including holding the chamber, blue subpixel with the green subpixel at least partly hold in hold the chamber, blue subpixel with the area of green subpixel all is less than the area of red subpixel.

An embodiment of a second aspect of the present application provides another display panel, including a substrate and a light emitting element layer, where the light emitting element layer is formed on one side of the substrate and includes a plurality of pixels, each pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel, any two of the red sub-pixel, the green sub-pixel, and the blue sub-pixel are adjacently disposed, and the blue sub-pixel and the green sub-pixel are located on the same side of the red sub-pixel, where an area ratio of the red sub-pixel to the green sub-pixel is a, and 1< a < 2; the areas of the red sub-pixels and the blue sub-pixels are b, and b is more than 1 and less than or equal to 3.

Embodiments of the third aspect of the present application provide a display device including any one of the display panels provided in the first and second aspects of the present application.

In the display panel provided by the application, the area of the red sub-pixel is set to be larger than the areas of the blue sub-pixel and the green sub-pixel, so that the light emitting brightness of the red sub-pixel in the display panel can be improved, the problem of low brightness of the red sub-pixel in the display panel is solved, and the problem of color cast of the display panel caused by low brightness of the red sub-pixel and high brightness of the blue sub-pixel and the green sub-pixel is solved. The accommodating cavity is formed in the red sub-pixel, the green sub-pixel and the blue sub-pixel are arranged in the accommodating cavity, and the red sub-pixel, the green sub-pixel and the blue sub-pixel are arranged to be adjacent to each other at random, so that the area of the red sub-pixel is increased, the uniform color mixing of the red sub-pixel, the green sub-pixel and the blue sub-pixel is guaranteed, and the display effect of the display panel is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of the region A in FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line B-B' of FIG. 2;

fig. 4 is a schematic structural diagram of a pixel of a display panel according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a pixel of another display panel provided in this embodiment of the present application;

fig. 6 is a schematic structural diagram of a pixel of another display panel provided in this embodiment of the present application;

fig. 7 is a schematic structural diagram of a pixel of another display panel provided in this embodiment of the present application;

fig. 8 is a schematic structural diagram of a pixel of another display panel provided in this embodiment of the present application;

fig. 9 is a schematic structural diagram of a display panel according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

fig. 11 is a schematic partial structure diagram of another display panel provided in an embodiment of the present application;

fig. 12 is a schematic structural diagram of a display panel according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a display panel according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of an apparatus according to an embodiment of the present disclosure.

In the drawings:

1-a display panel; 10-a substrate; 11-a light emitting element layer; 111-pixels; 1111-red sub-pixel; 1112-green sub-pixel; 1113-blue subpixel; 1114-a containment chamber; 112-first light-shielding portion; 113-a second light shielding portion; 114-third light-shielding portion; d1 — first width; d2 — second width; d3 — third width; 115-a red light source; 116-a green light source; 117-blue light source; 118-a first excitation light source 119-a first photo-induced display module; 120-a second excitation light source; 121-a second photo-induced display module; 122-a third excitation light source; 123-a third light-induced display module; 2-a display device; x-a first direction; y-a second direction; 13-glue layer; 14-glue frame; 15-upper substrate.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The inventor finds that the Micro-LED display panel at least comprises Micro-LEDs with three colors of red Micro-LEDs, green Micro-LEDs and blue Micro-LEDs, and the Micro-LEDs with three colors of red Micro-LEDs, green Micro-LEDs and blue Micro-LEDs are different in luminescent materials, wherein the red Micro-LEDs are limited by the characteristics of the luminescent materials, the luminescent efficiency is insufficient, and the brightness is far lower than that of the green Micro-LEDs and the blue Micro-LEDs under the same current. Therefore, the brightness, the chromaticity and the white point are abnormal, and the normal display requirement cannot be met. Based on the research on the above problems, the inventor provides a display panel and a display device to improve the luminance of the red Micro-LED in the display panel, so as to improve the light emitting effect of the display panel.

For better understanding of the present application, a display panel and a display device according to an embodiment of the present application will be described in detail below with reference to fig. 1 to 12.

Referring to fig. 1 to 4, an embodiment of the present invention provides a display panel 1, including a substrate 10 and a light emitting device layer 11, where the light emitting device layer 11 is formed on one side of the substrate 10 and includes a plurality of pixels 111, each of the pixels 111 includes a red sub-pixel 1111, a green sub-pixel 1112, and a blue sub-pixel 1113, any two of the red sub-pixel 1111, the green sub-pixel 1112, and the blue sub-pixel 1113 are disposed adjacent to each other, the red sub-pixel 1111 includes a receiving cavity 1114, the blue sub-pixel 1113 and the green sub-pixel 1112 are at least partially received in the receiving cavity 1114, and both areas of the blue sub-pixel 1113 and the green sub-pixel 1112 are smaller than the area of the red sub-pixel 1111.

In the display panel 1 provided by the present application, the area of the red sub-pixel 1111 is set to be larger than the areas of the blue sub-pixel 1113 and the green sub-pixel 1112, so that the emission brightness of the red sub-pixel 1111 in the display panel 1 can be improved, the problem of low brightness of the red sub-pixel 1111 in the display panel 1 can be solved, and the problem of color cast of the display panel 1 caused by low brightness of the red sub-pixel 1111 and high brightness of the blue sub-pixel 1113 and the green sub-pixel 1112 can be solved. And by disposing the accommodating cavity 1114 in the red sub-pixel 1111, disposing the green sub-pixel 1112 and the blue sub-pixel 1113 in the accommodating cavity 1114, and disposing the red sub-pixel 1111, the green sub-pixel 1112 and the blue sub-pixel 1113 in any two adjacent positions, the area of the red sub-pixel 1111 is increased, and at the same time, uniform color mixing of the red sub-pixel 1111, the green sub-pixel 1112 and the blue sub-pixel 1113 is ensured, thereby improving the display effect of the display panel 1.

The area of the red sub-pixel 1111 in the present application refers to an area of an orthographic projection of the light emitting portion in the red sub-pixel 1111 on the substrate 10, excluding the receiving cavity 1114.

In one possible embodiment, as shown in fig. 4, the orthographic projection of the accommodating chamber 1114 on the substrate 10 is rectangular, and the orthographic projection of the red sub-pixel 1111 on the substrate 10 is a square ring surrounding the orthographic projection of the accommodating chamber 1114 on the substrate 10.

In the above embodiment, the receiving cavity 1114 is located inside the red sub-pixel 1111, and the red sub-pixel 1111 is disposed around the receiving cavity 1114, so that the red sub-pixel 1111 and the green sub-pixel 1112 and the blue sub-pixel 1113 located inside the receiving cavity 1114 can be sufficiently mixed with each other. The front projection of the red sub-pixel 1111 on the substrate 10 is a square ring, the front projection of the accommodating cavity 1114 on the substrate 10 is a rectangle, and the fabrication process of the red sub-pixel 1111, the blue sub-pixel 1113 and the green sub-pixel 1112 can be simplified by adopting a regular pattern.

In one possible embodiment, as shown in fig. 5, the orthographic projection of the red sub-pixel 1111 on the substrate 10 coincides with the orthographic projection center of the accommodating chamber 1114 on the substrate 10.

In the above embodiment, the center of the orthographic projection of the red sub-pixel 1111 on the substrate 10 coincides with the center of the orthographic projection of the accommodating cavity 1114 on the substrate 10, so that the red sub-image can be uniformly distributed around the blue sub-pixel 1113 and the green sub-pixel 1112 located in the accommodating cavity 1114, and the light mixing effect of the red sub-pixel 1111, the green sub-pixel 1112 and the blue sub-pixel 1113 is better, so as to further improve the display effect of the display panel 1.

In another possible embodiment, as shown in fig. 6 and 7, the receiving cavity 1114 includes an opening formed at one side of the red sub-pixel 1111, and the green sub-pixel 1112 and the blue sub-pixel 1113 are polygonal in shape and partially or entirely located in the receiving cavity 1114.

Specifically, as shown in fig. 6, the green sub-pixel 1112 and the blue sub-pixel 1113 can be completely accommodated in the accommodating cavity 1114, and one side of the green sub-pixel 1112 and the blue sub-pixel 1113 coincides with the side of the red sub-pixel 1111 where the opening of the accommodating cavity 1114 is formed, so that the length of the adjacent side of the green sub-pixel 1112 and the red sub-pixel 1111 is similar to the length of the adjacent side of the blue sub-pixel 1113 and the red sub-pixel 1111, and the light mixing effect of the red sub-pixel 1111, the green sub-pixel 1112, and the blue sub-pixel 1113 is better.

Alternatively, as shown in fig. 7, the green sub-pixel 1112 and the blue sub-pixel 1113 may be partially accommodated in the accommodating cavity 1114, and the green sub-pixel 1112 and the blue sub-pixel 1113 are arranged along the first direction x, the red sub-pixel 1111 and the blue sub-pixel 1113 are arranged along the second direction y, and the red sub-pixel 1111 and the green sub-pixel 1112 are arranged along the second direction y, where the first direction x intersects the second direction y. The length of the adjacent side of the green sub-pixel 1112 and the red sub-pixel 1111 is similar to the length of the adjacent side of the blue sub-pixel 1113 and the red sub-pixel 1111, so that the light mixing effect of the red sub-pixel 1111, the green sub-pixel 1112, and the blue sub-pixel 1113 is better. And the area of the receiving cavity 1114 is smaller at this time, in the preparation process, the preparation process of forming the hole in the red sub-pixel 1111 to form the receiving cavity 1114 can be simplified.

In one possible embodiment, the area ratio of the red sub-pixel 1111 to the green sub-pixel 1112 is a, 1< a < 2; the areas of the red sub-pixel 1111 and the blue sub-pixel 1113 are b, and b is more than 1 and less than or equal to 3.

Due to the difference in the light-emitting efficiency of the light-emitting materials of red subpixel 1111, green subpixel 1112, and blue subpixel 1113, the light-emitting efficiency of blue subpixel 1113 is greater than the light-emitting efficiency of green subpixel 1112, and the light-emitting efficiency of green subpixel 1112 is greater than the light-emitting efficiency of red subpixel 1111. Therefore, the area of the red sub-pixel 1111, which has low light emission efficiency, is set to be the largest, the area of the green sub-pixel 1112 is set to be the next largest, and the area of the blue sub-pixel 1113 is set to be the smallest, so that the overall light emission effect of the red sub-pixel 1111, the green sub-pixel 1112, and the blue sub-pixel 1113 in the display panel 1 can be made better.

The area ratio a of the red sub-pixel 1111 to the green sub-pixel 1112 may be 1.91, 1.93, 1.97, etc., and the area ratio of the red sub-pixel 1111 to the blue sub-pixel 1113 may be 2.93, 2.96, 3.00, etc., which is not particularly limited in this application.

In one possible embodiment, as shown in fig. 8, the display panel 1 further includes a first light shielding portion 112, a second light shielding portion 113, and a third light shielding portion 114. The first shading portion 112 is located between the red sub-pixel 1111 and the green sub-pixel 1112, and the first shading portion 112 has a first width D1. The second light-shielding portion 113 is located between the red sub-pixel 1111 and the blue sub-pixel 1113, and the second light-shielding portion 113 has a second width D2. And a third shading portion 114 located between the green sub-pixel 1112 and the blue sub-pixel 1113, wherein the third shading portion 114 has a third width D3. The first width D1 is greater than or equal to the second width D2, and the second width D2 is greater than the third width D3.

In the display panel 1, the red sub-pixel 1111 and the green sub-pixel 1112 are mixed to be yellow, the red sub-pixel 1111 and the blue sub-pixel 1113 are mixed to be purple, and the yellow and the purple are easily recognized by human eyes, so that the light emitting effect of the display panel 1 is reduced. The red sub-pixel 1111 and the blue sub-pixel 1113 are cyan after being mixed, and are not easily recognized by human eyes. In the above embodiment, the first shading portion 112 is disposed between the red sub-pixel 1111 and the green sub-pixel 1112, the second shading portion 113 is disposed between the red sub-pixel 1111 and the blue sub-pixel 1113, and the third shading portion 114 is disposed between the green sub-pixel 1112 and the blue sub-pixel 1113, so that the first shading portion 112, the second shading portion 113, and the third shading portion 114 can prevent the color crosstalk of the adjacent sub-pixels 111 with different colors, and avoid the occurrence of colors easily recognized by human eyes in the whole light mixing effect, thereby improving the display effect of the display panel 1.

In the display panel 1, the first light-shielding portion 112 has the first width D1, the second light-shielding portion 113 has the second width D2, and the third light-shielding portion 114 has the third width D3. The first width D1 is greater than or equal to the second width D2, and the second width D2 is greater than the third width D3, so that the color mixing risk between the red sub-pixel 1111 and the green sub-pixel 1112, and between the red sub-pixel 1111 and the blue sub-pixel 1113, which is easily recognized by human eyes, can be further reduced. Setting the third width D3 to be the minimum can reduce the area ratio of the third shading portion 114 and increase the area ratio of each sub-pixel 111 to improve the display effect on the basis of improving the color mixing risk between the blue sub-pixel 1113 and the green sub-pixel 1112, which is not easily recognized by human eyes.

In one possible embodiment, the first width D1 is greater than 5 microns and less than or equal to 10 microns, the second width D2 is greater than 5 microns and less than or equal to 10 microns, and the third width D3 is greater than or equal to 3 microns and less than or equal to 5 microns.

Specifically, the first width D1 is greater than or equal to the second width D2, and the first width D1 and the second width D2 are both greater than 5 microns and less than or equal to 10 microns. Specifically, the first width D1 may be 5.3 micrometers, 5.6 micrometers, 5.8 micrometers, 6.3 micrometers, 7.9 micrometers, 10 micrometers, etc., and is not particularly limited in this application. Specifically, the second width D2 may be 5.3 micrometers, 5.4 micrometers, 5.8 micrometers, 6.0 micrometers, 7.5 micrometers, 10 micrometers, and the like, and is not particularly limited in this application. The above embodiment can ensure the crosstalk prevention effect of the first and second

light shielding portions

112 and 113, and reduce the area ratio of the first and second

light shielding portions

112 and 113 under the condition that the area of each pixel 111 is fixed, so as to improve the area ratio of the red, green and

blue sub-pixels

1111, 1112 and 1113, thereby improving the display effect.

The second width D2 is greater than the third width D3, and the third width D3 is greater than or equal to 3 microns and less than or equal to 5 microns. Specifically, the third width D3 may be 3 micrometers, 3.6 micrometers, 3.8 micrometers, 4.3 micrometers, 4.9 micrometers, 5 micrometers, and the like, and is not particularly limited in this application. Because the light mixing effect of the blue sub-pixel 1113 and the green sub-pixel 1112 is not easily recognized by human eyes, the third width D3 of the third shading portion 114 is set to be smaller so as to meet the requirement, and meanwhile, the area ratio of the third shading portion 114 can be reduced under the condition that the area of each pixel 111 is fixed, so that the area ratios of the red sub-pixel 1111, the green sub-pixel 1112 and the blue sub-pixel 1113 are improved, and the display effect is improved.

In one possible embodiment, the first, second and third light-shielding

portions

112, 113 and 114 comprise a colored heat-curable glue or metal.

Specifically, the first light shielding portion 112, the second light shielding portion 113, and the third light shielding portion 114 may be made of a metal or a non-metal material with low transmittance, and the present application is not particularly limited. Specifically, when a non-metal material is used, a colored thermal curing adhesive, such as a black thermal curing adhesive, may be used, so as to effectively prevent the adjacent sub-pixels 111 with different colors from crosstalk.

In one possible implementation, as shown in FIG. 9, the red sub-pixel 1111 includes a red light source 115, the green sub-pixel 1112 includes a green light source 116, and the blue sub-pixel 1113 includes a blue light source 117.

In the above embodiments, the red light source 115, the green light source 116, and the blue light source 117 may directly employ a self-light emitting device, such as a Micro-LED. During the manufacturing process, the red Micro-LED is made into a whole block, holes are cut to form the accommodating cavity 1114, and the green Micro-LED and the red Micro-LED are placed in the accommodating cavity 1114, so that the green Micro-LED and the red Micro-LED are at least partially positioned in the accommodating cavity 1114.

In one possible implementation, as shown in fig. 10, the red sub-pixel 1111 includes a first excitation light source 118 formed on the substrate 10 and a first photo-induced display module 119 located on a side of the first excitation light source 118 facing away from the substrate 10.

The green sub-pixel 1112 includes a second excitation light source 120 formed on the substrate 10 and a second photo-display module 121 located on a side of the second excitation light source 120 facing away from the substrate 10.

The blue sub-pixel 1113 comprises a third excitation light source 122 formed on the substrate 10 and a third photo-induced display module 123 located on a side of the third excitation light source 122 facing away from the substrate 10.

The first photo-induced display module 119 comprises an accommodating cavity 1114 for accommodating the second photo-induced display module 121 and the third photo-induced display module 123, and the areas of the second photo-induced display module 121 and the third photo-induced display module 123 are smaller than the area of the first photo-induced display module 119.

In the above embodiment, each pixel 111 emits light of a specific color in the form of an excitation light source and a photo-display module, and this light emission can further reduce color shift (e.g., white point to blue). Specifically, the red sub-pixel 1111 includes a first excitation light source 118 and a first photo-induced display module 119 stacked on the substrate 10. The green sub-pixel 1112 includes a second excitation light source 120 and a second photo-induced display module 121 stacked on the substrate 10. The blue subpixel 1113 comprises a third excitation light source 122 and a third photo-induced display module 123 which are stacked on the substrate 10. Since the blue subpixel 1113 and the green subpixel 1112 are at least partially disposed in the accommodating cavity 1114 of the red subpixel 1111, the accommodating cavity 1114 may be formed in the first photo-induced display module 119, at least a portion of the second photo-induced display module 121 and the third photo-induced display module 123 may be disposed in the accommodating cavity 1114, and the area of the first photo-induced display module 119 may be set to be larger than the areas of the second photo-induced display module 121 and the third photo-induced display module 123, so as to ensure that the red subpixel 1111 is larger than the areas of the blue subpixel 1113 and the green subpixel 1112, thereby improving the light emitting brightness of the red subpixel 1111.

In the above embodiment, the display panel 1 further includes the adhesive layer 13 disposed between the excitation light source and the photo-induced display module, the adhesive frame 14 disposed on the periphery side of the display panel 1, and the upper substrate 15 disposed on the side of the light-emitting element layer 11 away from the substrate.

As shown in fig. 11, the accommodating cavity 1114 in the first photo-induced display module 119 may be formed inside the red sub-pixel 1111 to achieve better light mixing of the red sub-pixel 111, the green sub-pixel 1112, and the blue sub-pixel 1113. Or an opening of the receiving cavity 1114 coincides with a side edge of the first photo-induced display module 119. The present application is not particularly limited.

In one possible embodiment, the wavelengths of the light emitted by the first excitation light source 118, the second excitation light source 120, and the third excitation light source 122 are shorter than the wavelength of the blue light, the first photo-induced display module 119 is a red photo-induced display module for emitting red light, the second photo-induced display module 121 is a green photo-induced display module for emitting green light, and the third photo-induced display module 123 is a blue photo-induced display module for emitting blue light. The first photo-induced display module 119, the second photo-induced display module 121, and the third photo-induced display module 123 include at least one of a quantum dot material and a phosphor.

Specifically, when the quantum dot material is used for the first photo-induced display module 119, the second photo-induced display module 121, and the third photo-induced display module 123, the diameter of the quantum dot material particle may be adjusted to emit light of a specific color, wherein the wavelength of the excitation light source is smaller than the wavelength of the light to be emitted by the excited quantum dot.

In one possible embodiment, the wavelengths of the light emitted by the first and second

excitation light sources

118 and 120 are less than or equal to the wavelength of blue light, the first photo-display module 119 is a red photo-display module for emitting red light, and the second photo-display module 121 is a green photo-display module for emitting green light. The first and second photo-induced

display modules

119 and 121 include at least one of a quantum dot material and a phosphor.

The third excitation light source 122 emits blue light, and the third photo-induced display module 123 is a colorless and transparent photo-induced display module.

In the above embodiment, as shown in fig. 12, the first excitation light source 118, the second excitation light source 120, and the third excitation light source 122 may all emit blue light, and the red subpixel 1111, the green subpixel 1112, and the blue subpixel 1113 are formed by dividing the first photo-induced display module 119, the second photo-induced display module 121, and the third photo-induced display module 123 by their sizes, shapes, and positions. In this embodiment, the same blue excitation light source may be used for the first excitation light source 118, the second excitation light source 120, and the third excitation light source 122, so that the first excitation light source 118, the second excitation light source 120, and the third excitation light source 122 may be transferred synchronously during the manufacturing process, thereby saving transfer time. Since the first excitation light source 118, the second excitation light source 120, and the third excitation light source 122 employ the same blue excitation light source, the individual difference of each blue excitation light source is small, and thus the transfer yield can be improved. That is, the above embodiment makes the manufacturing method of the display panel 1 simpler and the manufacturing yield higher. Meanwhile, the excitation light source directly emits blue light, so that the third photoluminescent display module 123 can directly adopt a transparent photoluminescent display module, and specifically, can be filled with a colorless transparent material, such as polyimide, which can further save the preparation difficulty and cost, and the material of the transparent photoluminescent display module is not particularly limited in this application.

In one possible embodiment, the display panel 1 further includes a filter layer on a side of the optical device layer facing away from the substrate 10, where the filter layer includes a red filter opposite the red sub-pixel 1111, a green filter opposite the green sub-pixel 1112, and a blue filter opposite the blue sub-pixel 1113.

In the above embodiment, as shown in fig. 13, by disposing the filter layer 16 on the side of the light emitting device layer 11 away from the substrate 10, the filter layer includes the red filter 161, the green filter 162, and the blue filter 162, the red filter 161 is opposite to the red sub-pixel 1111, the green filter 162 is opposite to the green sub-pixel 1112, and the blue filter 163 is opposite to the blue sub-pixel 1113, so that the light of each color can be further purified, and the purity of the light emitted from each sub-pixel 111 can be further improved.

The present application further provides another display panel 1, including a substrate 10 and a light emitting device layer 11, where the light emitting device layer 11 is formed on one side of the substrate 10, and includes a plurality of pixels 111, each pixel 111 includes a red sub-pixel 1111, a green sub-pixel 1112, and a blue sub-pixel 1113, any two of the red sub-pixel 1111, the green sub-pixel 1112, and the blue sub-pixel 1113 are disposed adjacent to each other, and the blue sub-pixel 1113 and the green sub-pixel 1112 are located on the same side of the red sub-pixel 1111. Wherein, the area ratio of the red sub-pixel 1111 to the green sub-pixel 1112 is a, 1< a < 2; the areas of the red sub-pixel 1111 and the blue sub-pixel 1113 are b, and b is more than 1 and less than or equal to 3.

In the display panel 1 provided by the present application, the area ratio a of the red sub-pixel 1111 to the green sub-pixel 1112 is set as: 1< a < 2; the areas b of the red 1111 and blue 1113 sub-pixels are set as: 1< b > is less than or equal to 3, so that the area of the red sub-pixel 1111 is larger than the areas of the blue sub-pixel 1113 and the green sub-pixel 1112, the light emitting brightness of the red sub-pixel 1111 in the display panel 1 can be improved, the problem of low brightness of the red sub-pixel 1111 in the display panel 1 can be solved, and the problem of color cast of the display panel 1 caused by low brightness of the red sub-pixel 1111 and high brightness of the blue sub-pixel 1113 and the green sub-pixel 1112 can be solved. And the red sub-pixel 1111, the green sub-pixel 1112 and the blue sub-pixel 1113 are arranged to be adjacent to each other, so that the area of the red sub-pixel 1111 is increased, and the uniform color mixing of the red sub-pixel 1111, the green sub-pixel 1112 and the blue sub-pixel 1113 is ensured, thereby improving the display effect of the display panel 1.

In the above embodiment, the area ratio a of the red sub-pixel 1111 to the green sub-pixel 1112 may be 1.91, 1.93, 1.97, etc., and the area ratio of the red sub-pixel 1111 to the blue sub-pixel 1113 may be 2.93, 2.96, 3.00, etc., and the present application is not particularly limited.

In the above-described embodiment, the display panel 1 further includes the first light shielding portion 112, the second light shielding portion 113, and the third light shielding portion 114. The first shading portion 112 is located between the red sub-pixel 1111 and the green sub-pixel 1112, and the first shading portion 112 has a first width D1. And a second light-shielding portion 113 positioned between the red sub-pixel 1111 and the blue sub-pixel 1113, wherein the second light-shielding portion 113 has a second width D2. And a third light-shielding portion 114 located between the green sub-pixel 1112 and the blue sub-pixel 1113, wherein the third light-shielding portion 114 has a third width D3. The first width D1 is greater than or equal to the second width D2, and the second width D2 is greater than the third width D3.

The specific arrangement and dimensions of the first light-shielding portion 112, the second light-shielding portion 113, and the third light-shielding portion 114 in the display panel 1 are the same as those of the first light-shielding portion 112, the second light-shielding portion 113, and the third light-shielding portion 114 in the display panel 1 in the above-described embodiments of the present application, and the description thereof is omitted.

The present application also provides a display device 2, as shown in fig. 14, including any one of the display panels 1 provided in the above-described embodiments of the present application.

The display device 2 may be a mobile terminal such as a mobile phone and a tablet computer, a fixed terminal such as a display and a computer screen, or a vehicle-mounted display or a wearable device, and the application is not particularly limited.

Above-mentioned display device 2 carries on display panel 1 that this application provided to can improve red subpixel 1111 luminance low, and improve the colour mixture effect, reduce the colour cast, thereby promote the display effect, and then can promote user experience.

In accordance with the embodiments of the present invention as set forth above, these embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application and its various modifications as are suited to the particular use contemplated. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, comprising:

a substrate;

the light-emitting element layer is formed on one side of the substrate and comprises a plurality of pixels, each pixel comprises a red sub-pixel, a green sub-pixel and a blue sub-pixel, any two of the red sub-pixel, the green sub-pixel and the blue sub-pixel are arranged adjacently, the red sub-pixel comprises an accommodating cavity, at least part of the blue sub-pixel and at least part of the green sub-pixel are accommodated in the accommodating cavity, and the areas of the blue sub-pixel and the green sub-pixel are smaller than that of the red sub-pixel.

2. The display panel according to claim 1, wherein an orthographic projection of the accommodating cavity on the substrate is rectangular, and an orthographic projection of the red sub-pixel on the substrate is a square ring surrounding the orthographic projection of the accommodating cavity on the substrate.

3. The display panel of claim 2, wherein an orthographic projection of the red sub-pixel on the substrate coincides with an orthographic projection center of the receiving cavity on the substrate.

4. The display panel of claim 1, wherein the receiving cavity comprises an opening formed at one side of the red sub-pixel, and the green sub-pixel and the blue sub-pixel are polygonal in shape and partially or completely located in the receiving cavity.

5. The display panel of claim 1, wherein the area ratio of the red sub-pixel to the green sub-pixel is a, 1< a < 2; the areas of the red sub-pixels and the blue sub-pixels are b, and b is more than 1 and less than or equal to 3.

6. The display panel according to claim 1, further comprising:

a first shading portion between the red sub-pixel and the green sub-pixel, the first shading portion having a first width;

a second light blocking portion between the red and blue sub-pixels, the second light blocking portion having a second width;

a third shading portion located between the green sub-pixel and the blue sub-pixel, the third shading portion having a third width;

wherein the first width is greater than or equal to the second width, which is greater than the third width.

7. The display panel according to claim 6, wherein the first width is greater than 5 micrometers and less than or equal to 10 micrometers, the second width is greater than 5 micrometers and less than or equal to 10 micrometers, and the third width is greater than or equal to 3 micrometers and less than or equal to 5 micrometers.

8. The display panel according to claim 6, wherein the first light shielding portion, the second light shielding portion, and the third light shielding portion comprise a colored heat-curable glue or a metal.

9. The display panel of claim 1, wherein the red sub-pixel comprises a red light source, the green sub-pixel comprises a green light source, and the blue sub-pixel comprises a blue light source.

10. The display panel of claim 1, wherein the red sub-pixel comprises a first excitation light source formed on the substrate and a first photo-induced display module located on a side of the first excitation light source facing away from the substrate;

the green sub-pixel comprises a second excitation light source formed on the substrate and a second light-induced display module positioned on one side of the second excitation light source, which is far away from the substrate;

the blue sub-pixel comprises a third excitation light source formed on the substrate and a third light-induced display module positioned on one side of the third excitation light source, which is far away from the substrate;

the first photoinduced display module comprises an accommodating cavity for accommodating the second photoinduced display module and the third photoinduced display module, and the areas of the second photoinduced display module and the third photoinduced display module are smaller than the area of the first photoinduced display module.

11. The display panel of claim 10, wherein the first, second, and third excitation light sources emit light having a wavelength shorter than a blue light wavelength, the first photo-induced display module is a red photo-induced display module for emitting red light, the second photo-induced display module is a green photo-induced display module for emitting green light, the third photo-induced display module is a blue photo-induced display module for emitting blue light, and the first, second, and third photo-induced display modules comprise at least one of quantum dot materials and phosphors.

12. The display panel of claim 10, wherein the first and second excitation light sources emit light having a wavelength less than or equal to a wavelength of blue light, the first photo-induced display module is a red photo-induced display module for emitting red light, the second photo-induced display module is a green photo-induced display module for emitting green light, and the first and second photo-induced display modules comprise at least one of quantum dot material and phosphor;

the third excitation light source emits blue light, and the third photoinduced display module is a colorless and transparent photoinduced display module.

13. The display panel of claim 1, further comprising a filter layer on a side of the optical component layer facing away from the substrate, the filter layer comprising a red filter opposite the red sub-pixel, a green filter opposite the green sub-pixel, and a blue filter opposite the blue sub-pixel.

14. A display panel, comprising:

a substrate;

a light emitting element layer formed on one side of the substrate and including a plurality of pixels, each pixel including a red sub-pixel, a green sub-pixel, and a blue sub-pixel, any two of the red sub-pixel, the green sub-pixel, and the blue sub-pixel being adjacently disposed, the blue sub-pixel and the green sub-pixel being located on the same side of the red sub-pixel,

wherein the area ratio of the red sub-pixel to the green sub-pixel is a, 1< a < 2; the areas of the red sub-pixels and the blue sub-pixels are b, and b is more than 1 and less than or equal to 3.

15. The display panel according to claim 14, further comprising:

a third light blocking portion between the green sub-pixel and the blue sub-pixel, the third light blocking portion having a third width;

16. A display device characterized by comprising the display panel according to any one of claims 1 to 15.