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Pixel defining layer and manufacturing method, display panel and manufacturing method, display device

A pixel-defining layer and manufacturing method technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problems affecting the uniformity of ink film formation, and achieve the effect of reducing the risk of leakage and improving the uniformity of film formation.

Active Publication Date: 2022-05-10
BOE TECH GRP CO LTD
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Problems solved by technology

However, due to the difference in surface energy at the surface where the ink contacts the pixel defining layer, or the drying characteristics of the ink, etc., the ink of inkjet printing will climb to a certain extent on the side surface of the pixel defining layer, thereby affecting the surface of the pixel defining layer. Uniformity of ink film formation within the pixel area

Method used

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  • Pixel defining layer and manufacturing method, display panel and manufacturing method, display device
  • Pixel defining layer and manufacturing method, display panel and manufacturing method, display device
  • Pixel defining layer and manufacturing method, display panel and manufacturing method, display device

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Embodiment Construction

[0047] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0048] Such as figure 1 As shown, an embodiment of the present invention provides a pixel defining layer, including a first pixel defining layer disposed on a substrate; a second pixel defining layer located on a side of the first pixel defining layer away from the substrate, The orthographic projection of the surface of the second pixel defining layer close to the substrate on the substrate covers the orthographic projection of the surface of the first pixel defining layer far away from the substrate on the substrate, and...

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Abstract

The invention discloses a pixel defining layer and a manufacturing method, a display panel and a manufacturing method, and a display device. The pixel defining layer includes a first pixel defining layer arranged on a substrate; A second pixel defining layer on one side of the substrate, the orthographic projection of the surface of the second pixel defining layer on the substrate close to the substrate covers the surface of the first pixel defining layer far away from the substrate on the substrate Orthographic projection, the second pixel defining layer is a lyophobic material. The embodiments provided by the present invention can effectively suppress the climbing of the ink on the pixel defining layer, reduce the leakage risk of the device layer of the organic light emitting diode, and improve the uniformity of film formation.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel defining layer and a manufacturing method, a display panel and a manufacturing method, and a display device. Background technique [0002] Compared with LCD, Organic Light-Emitting Diode (OLED) has the advantages of self-luminescence, fast response, wide viewing angle, high brightness, bright color, light and thin, etc., and is considered to be the next generation display technology. [0003] The thin film deposition methods of organic material films for organic electroluminescent devices mainly include vacuum evaporation and solution process: 1. Vacuum evaporation is suitable for small organic molecules. Its film formation is uniform and the technology is relatively mature, but the investment in equipment is large. 1. Low material utilization rate and low alignment accuracy of large-sized products; 2. Solution process, including spin coating, inkjet printing, no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/56
CPCH10K59/122H10K71/00
Inventor 侯文军
Owner BOE TECH GRP CO LTD
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