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Display substrate and display device

A technology for displaying substrates and substrates, which is applied in the direction of identification devices, instruments, semiconductor devices, etc., and can solve problems such as the inability to completely eliminate edge effects, the inability to realize narrow frame display, and the easy enlargement of display substrate frames, etc.

Pending Publication Date: 2020-07-31
HEFEI BOE ZHUOYIN TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventors found that there are at least the following problems in the prior art: at present, the amount of solvent carried by the traditional virtual pixel area is limited, and the edge effect cannot be completely eliminated
If the area of ​​the virtual pixel area is directly expanded, it is easy to increase the frame of the display substrate, and it is impossible to realize the narrow frame display, which affects the user experience

Method used

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  • Display substrate and display device
  • Display substrate and display device
  • Display substrate and display device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0027] figure 2 A schematic structural diagram of a display substrate provided for an embodiment of the present invention, such as figure 2 As shown, the display substrate has a pixel area and a dummy pixel area surrounding the pixel area, including: a base 101, and a pixel defining layer 102 on the base; the pixel defining layer 102 includes: a plurality of first pixel defining structures arranged in the pixel area , and a plurality of second pixel definition structures arranged in the virtual pixel area; the first pixel definition structure includes: a first pixel barrier 1021 and a first accommodation portion 1022 defined by the first pixel barrier 1021; the second pixel definition The structure includes: a second pixel blocking wall 1023 and a second accommodating portion 1024 defined by the second pixel blocking wall 1023 ; the volume of the second accommodating portion 1024 is greater than that of the first accommodating portion 1022 .

[0028] The difference between ...

Embodiment 2

[0049] Based on the same inventive concept, an embodiment of the present invention provides a display device, including the display substrate provided in the above embodiment, and the display device can be a mobile phone, a tablet computer, an electronic watch, a sports bracelet, a notebook computer, etc., which have a display substrate. Electronic equipment. For the realization principle of the display device, reference may be made to the above discussion of the realization principle of the display substrate, which will not be repeated here.

[0050] In the display device provided by the embodiment of the present invention, the volume of the second containing part in the pixel defining layer is larger than that of the first containing part, and more organic solvent can be carried in the second containing part during the manufacturing process, which can change the The atmosphere around the pixel units arranged near the edge makes the volatilization rate of the organic solvent ...

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PUM

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Abstract

The invention provides a display substrate and a display device, which belong to the technical field of display and can solve the problem of non-uniform thickness of an organic functional layer in anexisting display substrate. The display substrate is provided with a pixel area and a virtual pixel area surrounding the pixel area and comprises a base and a pixel limiting layer located on the base.The pixel limiting layer comprises a plurality of first pixel limiting structures arranged in the pixel area and a plurality of second pixel limiting structures arranged in the virtual pixel area; each first pixel limiting structure comprises a first pixel retaining wall and a first accommodating part defined by the first pixel retaining wall; each second pixel limiting structure comprises a second pixel retaining wall and a second accommodating part defined by the second pixel retaining wall; the volume of the second accommodating part is larger than that of the first accommodating part.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a display substrate and a display device. Background technique [0002] Organic Light-Emitting Diode (OLED) display has been widely used in the field of display due to its advantages of high brightness and high reliability. OLED film-forming methods mainly include evaporation process and solution process. At present, the evaporation process technology has been applied in mass production, but the materials of this technology are expensive and the utilization rate of materials is low, which increases the cost of product development. OLED film formation methods in solution process technology mainly include inkjet printing, nozzle coating, spin coating, screen printing and so on. [0003] When inkjet printing is used to form the organic functional layer in OLED, the ink needs to be dried by vacuum drying (Vacuum Dry, VCD) process, but the VCD process cannot guarantee t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32G09F9/33
CPCG09F9/33H10K59/122
Inventor 贾文斌
Owner HEFEI BOE ZHUOYIN TECH CO LTD