Pixel defining layer structure and manufacturing method thereof, display panel, and display apparatus

Abstract

The invention discloses a pixel defining layer structure and a manufacturing method thereof, a display panel, and a display apparatus. The pixel defining layer structure comprises a first pixel defining layer and a second pixel defining layer disposed on the first pixel defining layer, wherein the first pixel defining layer is provided with multiple first openings in one-to-one corresponding to the luminescence area of each sub pixel, and the second pixel defining layer is provided with multiple second openings shared by an area formed by connecting sub pixels having the same color. Through the pixel defining layer structure provided by the invention, the multiple sub pixels having the same color are combined together for simultaneous printing so that the deposition area of ink is increased by multiple times. Therefore, the dimension of each sub pixel can be effectively reduced, at the same time, it is ensured that the ink does not overflow due to too small area of the sub pixels, and finally, a printing type high-resolution display device is prepared.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel defining layer structure and a manufacturing method thereof, a display panel and a display device. Background technique [0002] The use of solution processing to manufacture OLED and QLED displays is an important direction for the future development of display technology due to its advantages of low cost, high productivity, and easy realization of large sizes. Among them, printing technology is considered to be the most effective way to realize OLED and QLED low-cost and large-area full-color display. [0003] In the printing process, due to the influence of equipment precision and droplet size, it is difficult to realize the preparation of high-resolution display devices for the traditional RGBStripe (RGB strip) arranged pixel structure. When the resolution of the display device reaches 200ppi, the width of each sub-pixel will be reduced to 42μm. At the same t...

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Problems solved by technology

[0007] In view of the above deficiencies in the prior art, the object of the present invention is to provide a pixel defining layer structure and its manufacturing method, a display panel and a display device, aiming at solving the problem of the pixel area decrease caused by the increase of the resolution of the display device in the prior art. Small, which leads to the problem of ink overflowing pixel pits and causing color crosstalk

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