OLED display panel and its preparation method

A technology for display panels and array substrates, which is applied in the manufacture of semiconductor/solid-state devices, semiconductor devices, electrical components, etc., can solve problems such as crosstalk, increased lateral current of display panels, and reduced display quality of OLED display panels, and eliminates light leakage. , the effect of improving the display quality
CN107293572BActive Publication Date: 2020-09-15WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Publication Date
2020-09-15

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Abstract

The invention discloses an OLED display panel, which comprises a TFT array substrate and a plurality of anodes arrayed on the TFT array substrate. A pixel definition layer is arranged on the TFT array substrate, and the pixel definition layer includes the exposed The opening of the anode and the spacer for separating two adjacent anodes, each of the openings corresponds to a sub-pixel area; wherein, the pixel definition layer is sequentially provided with first holes for transporting holes. A common layer, a second common layer for transporting electrons, and a cathode layer, a luminescent material is respectively arranged between the first common layer and the second common layer corresponding to each sub-pixel area; wherein, the interval A hole blocking portion is further provided above the portion, and the hole blocking portion separates the first common layer between two adjacent sub-pixel regions from each other. The invention also discloses a preparation method of the above-mentioned OLED display panel.
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Description

technical field

[0001] The invention relates to the technical field of displays, in particular to an OLED display panel and a preparation method thereof. Background technique

[0002] OLED (Organic Electroluminescent Diode) display devices have the characteristics of self-illumination, wide viewing angle, high luminous efficiency, low power consumption, fast response time, good low temperature characteristics, simple manufacturing process, and low cost, and have been widely used in the display field.

[0003] The core component of an OLED display device is an OLED display panel. The structure of an OLED display panel generally includes: a TFT array substrate and an anode layer sequentially fabricated on the TFT substrate, a pixel definition layer, a first common layer, a light emitting layer, a second common layer and cathode layer. The anode layer includes a plurality of anodes arranged in an array, and the pixel definition layer includes a plurality of pixel openings that...

Claims

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