Display panel, fabrication method thereof and display device

A technology for display panels and display devices, applied in the fields of preparation, display panels, and display devices, capable of solving problems such as uneven film thickness of the light-emitting layer and affecting display effects

Active Publication Date: 2018-04-06
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Embodiments of the present invention provide a display panel and a preparation method thereof, which are used to solve the problem in the prior art that the display effect of the display panel is affected by the uneven film thickness of the light-emitting layer formed due to the climbing of ink droplets

Method used

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  • Display panel, fabrication method thereof and display device
  • Display panel, fabrication method thereof and display device
  • Display panel, fabrication method thereof and display device

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preparation example Construction

[0050] Based on the same inventive concept, an embodiment of the present invention also provides a method for manufacturing a display panel, such as Figure 4 shown, including:

[0051] S401, forming a pattern of a plurality of anodes arranged in a matrix on the base substrate;

[0052] S402, forming a pattern of a first pixel defining layer between each anode on the base substrate formed with each anode; wherein the upper surface of the first pixel defining layer has liquid repellency;

[0053] S403, forming a pattern of a second pixel defining layer on a side of the first pixel defining layer facing away from the base substrate; wherein the upper surface of the second pixel defining layer has liquid repellency.

[0054] The above-mentioned display panel manufacturing method provided by the embodiment of the present invention divides the existing pixel defining layer into two layers, that is, the pixel defining layer includes a first pixel defining layer and a second pixel d...

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Abstract

The invention provides a display panel, a fabrication method thereof and a display device. A pixel defining layer is divided into two layers of structures, and upper surfaces of the two layers of structures both have lyophobicity; during subsequently spraying ink containing a light-emitting layer material by employing an ink printing process, the upper surfaces of the first pixel defining layer have lyophobicity, thus, ink drops are prevented from climbing a second pixel defining layer, the climbing height of the ink drops is reduced, and the formed light-emitting layer is relatively uniform in film thickness; a remaining part, except an upper surface, of the second pixel defining layer has lyophilicity, the ink drops containing the light-emitting layer material can be resided at one side,near to the light-emitting layer, of the second pixel defining layer, the upper surfaces of the first pixel defining layer has lyophobicity, thus, the light-emitting layer before drying and film formation is prevented from climbing, and the uniformity of a film layer interface is ensured; and meanwhile, a light-emitting film layer resided on a side wall of the second pixel defining layer is physically disconnected with the light-emitting layer, and the film layer resided on the side wall of the second pixel defining layer is enabled not to affect the light-emitting characteristic of the panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display panel, a preparation method thereof and a display device. Background technique [0002] Compared with Liquid Crystal Display (LCD), organic electroluminescent display panel (Organic Electroluminescent Display, OLED) has the advantages of self-illumination, fast response, wide viewing angle, high brightness, bright color, light and thin, etc. One of the hot spots in the field is considered to be the next generation of display technology. [0003] At present, the film-forming methods of the light-emitting layer in the OLED display mainly include evaporation and inkjet printing. Film formation by vapor deposition is relatively mature in the preparation of small-size OLED displays, and film formation by inkjet printing is considered to be the best choice for large-size OLEDs due to its fast film formation rate, high material utilization rate, and large-scale realization. ...

Claims

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Application Information

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IPC IPC(8): H01L27/32H01L51/56
CPCH10K59/122H10K71/135H10K71/40H10K71/20H10K59/173H10K71/191H10K71/00H10K50/11H10K59/1201H10K2102/351
Inventor 贾文斌王辉锋万想江昌俊孙力
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
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