Display substrate, display panel, and display apparatus
地域：
Beijing
摘要
The display substrate includes sub-pixels of different colors. The sub-pixels are arranged as pixel columns in a first direction. Sub-pixels in the same pixel column have the same color. The display substrate includes a substrate, a first electrode layer, a pixel defining structure and an organic light-emitting layer. The pixel defining structure includes a first pixel defining structure, and a second pixel defining structure. The organic light-emitting layer includes color light-emitting layers with different colors. One light-emitting layer includes main body parts in a display region and a virtual part in a bezel region. The virtual part is connected to at least two main body parts in the light-emitting layer of the same color.
說(shuō)明書(shū)
This application is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/CN2021/088539, filed on Apr. 20, 2021, which claims priority of Chinese Patent Application No. 202010478130.1, filed with the China National Intellectual Property Administration (CNIPA) on May 29, 2020, and entitled “Array Substrate, Display Panel and Display Apparatus”, the entire content of which is incorporated herein by reference.
The present disclosure relates to the technical field of display, in particular to a display substrate, a display panel and a display apparatus.
An Organic Light-Emitting Diode (OLED) display technology is widely applied and has a good prospect due to its advantages of being light and thin, bendable and high in contrast and the like.
As for an OLED product manufactured through an ink-jet printing method, in an ink-jet printing drying and film forming process, solvent vapor quickly volatilizes at the edge of a droplet, in this way, solution of the droplet flows from the center to the edge. This kind of flowing drives a solute to migrate to the edge of the droplet and be finally deposited at the edge, so as to form a depositional topography with a thick edge and thin center, namely a “coffee-ring effect”. Consequently, film forming of an organic light-emitting layer in a sub-pixel is not uniform, leading to nonuniform light emitting of the OLED product, and influence on a display effect.
權(quán)利要求
What is claimed is:1. A display substrate, comprising sub-pixels with at least two different colors, wherein the sub-pixels are arranged as pixel columns in a first direction, all sub-pixels at a same pixel column have a same color, and the display substrate comprises:a substrate, comprising:a display region, and a bezel region around the display region; a first electrode layer, on one side of the substrate and comprising:first electrodes in one-to-one correspondence with the sub-pixels; a pixel defining structure, comprising:a first pixel defining structure, and a second pixel defining structure with a thickness being smaller than a thickness of the first pixel defining structure, wherein the first pixel defining structure comprises:first blocking walls in the display region, and a second blocking wall in the bezel region, wherein the first blocking wall extends in the first direction, and adjacent first blocking walls limit pixel column openings in one-to-one correspondence with the pixel columns; and the second blocking wall extends in a second direction and is connected with first blocking walls limiting at least two adjacent pixel column openings of a same color; the second pixel defining structure comprises:third blocking walls in the display region, wherein the third blocking walls are in the pixel column openings and are configured to divide the pixel column openings into pixel openings in one-to-one correspondence with the sub-pixels; wherein an orthographic projection of one pixel opening on the substrate is within an orthographic projection of one first electrode on the substrate, and the second direction intersects with the first direction; and an organic light-emitting layer, at least comprising:two light-emitting layers with different colors, wherein at least one light-emitting layer each of one color comprises:main body parts in the display region, and a virtual part in the bezel region, wherein the main body parts overspread a region limited by corresponding pixel column openings, and the virtual part is connected with at least two adjacent main body parts in the light-emitting layer of a same color. 2. The display substrate according to claim 1 , wherein the bezel region comprises:a virtual pixel region; wherein the virtual part is in the virtual pixel region. 3. The display substrate according to claim 2 ,wherein the virtual pixel region comprises:a first virtual pixel region, and a second virtual pixel region on one side of the display region away from the first virtual pixel region; wherein the at least one light-emitting layer comprises:a first color light-emitting layer and a second color light-emitting layer, wherein the first color light-emitting layer comprises:first main body parts, and a first virtual part, the second color light-emitting layer comprises:second main body parts, and a second virtual part; and wherein both the first virtual part and the second virtual part extend in the second direction, the first virtual part is in the first virtual pixel region, and the second virtual part is in the second virtual pixel region. 4. The display substrate according to claim 3 , wherein the first color light-emitting layer comprises at least two first virtual parts, and each first virtual part is connected with part of the first main body parts;the second color light-emitting layer comprises at least two second virtual parts, and each second virtual part is connected with part of the second main body parts. 5. The display substrate according to claim 4 , wherein the at least one light-emitting layer further comprises:a third color light-emitting layer, wherein the third color light-emitting layer comprises:third main body parts, and third virtual parts; in the second direction, the first main body parts and the second main body parts are arranged alternately, and one third main body part is disposed between adjacent first main body part and second main body part; and the third virtual parts are in the first virtual pixel region and/or the second virtual pixel region. 6. The display substrate according to claim 3 , wherein the first color light-emitting layer comprises one first virtual part, and the first virtual part is connected with all the first main body parts; andthe second color light-emitting layer comprises one second virtual part, and the second virtual part is connected with all the second main body parts. 7. The display substrate according to claim 6 , wherein the at least one light-emitting layer further comprises:a third color light-emitting layer, wherein the third color light-emitting layer comprises:third main body parts, and third virtual parts; in the second direction, the first main body parts and the second main body parts are arranged alternately, and one third main body part is disposed between adjacent first main body part and second main body part; and in the second direction, the third virtual parts are arranged alternately in the first virtual pixel region and the second virtual pixel region. 8. The display substrate according to claim 4 , wherein the organic light-emitting layer further comprises:a third color light-emitting layer, wherein the third color light-emitting layer comprises:third main body parts, wherein in the second direction, the first main body parts, the second main body parts and the third main body parts are arranged alternately. 9. The display substrate according to claim 8 , wherein the third color light-emitting layer is a blue light-emitting layer;in the second direction, widths of both the first main body part and the second main body part are smaller than a width of the third main body part. 10. The display substrate according to claim 5 , wherein the third color light-emitting layer is a blue light-emitting layer; andin the second direction, the first main body part, the second main body part and the third main body part have a same width. 11. The display substrate according to claim 1 , wherein orthographic projections of the virtual parts on the substrate do not overlap with orthographic projections of the first electrodes on the substrate. 12. The display substrate according to claim 1 , wherein a thickness of the first pixel defining structure is 1.2 μm-2 μm, and a thickness of the second pixel defining structure is 0.5 μm-1 μm. 13. The display substrate according to claim 1 , wherein the first pixel defining structure and the second pixel defining structure are integrally formed by adopting a same material. 14. The display substrate according to claim 1 , wherein the first pixel defining structure is on one side of the second pixel defining structure away from the substrate. 15. The display substrate according to claim 1 , wherein a material of the first pixel defining structure is a lyophobic material, and a material of the second pixel defining structure is a lyophilic material. 16. A display panel, comprising the display substrate according to claim 1 . 17. A display apparatus, comprising the display panel according to claim 16 .
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