Pixel structure of PMOLED screen body and PMOLED screen body

Abstract

The invention discloses a pixel structure of a PMOLED screen body and the PMOLED screen body. The pixel structure includes multiple pixel units, wherein the pixel units include first color pixel regions and second color pixel regions which are arranged up and down, the pixel units further includes third color pixel regions, and the first color pixel regions and the third color pixel regions are parallelly arranged above or below the second color pixel regions. The pixel structure is advantaged in that the pixel structure is different from the long-strip opening MASK shape adopting in the prior art, and the spaced-aperture MASK shape can be adopted, which avoids the long-strip opening on the MASK, vertical and lateral connection of the openings on the MASK is achieved, a problem that sagging is easy to occur as the MASK has no lateral connection on both sides is avoided, and a problem that the MASK manufacturing cost is high due to the special parameter design for avoiding sagging is further solved.

Description

technical field [0001] The present disclosure generally relates to organic electroluminescence devices, specifically relates to the technical field of PMOLED screens, and in particular relates to the pixel structure of the PMOLED screen and the PMOLED screen. Background technique [0002] After nearly 30 years of development, organic electroluminescent devices (English full name Organic Light Emitting Device, referred to as OLED), as the next generation display technology, has the advantages of fast response, high contrast, planarization, etc., and has achieved a certain degree in the display field. Applications. [0003] Among them, PMOLED color screens have been widely used in medical, electronics, wearable products, household appliances and other fields due to their rich colors. [0004] Usually, the implementation method of PMOLED color screen is an array of three RGB pixels arranged side by side. Through the scanning method, the lighting of single-point monochrome / mul...

AI Technical Summary

Problems solved by technology

Compared with AMOLED, PMOLED single-point scanning has high brightness, resulting in a high probability of pixel defects or display failure; the single pixel size of PMOLED color screen is smaller than that of conventional monochrome screen pixels

Therefore, the PMOLED color screen body has problems such as low yield rate, many defects, high manufacturing cost, and difficulty in making precise mask by evaporation.

[0005] The reasons for the low yield rate and many defects of PMOLED color screens are as follows: Since the drive of the PMOLED color screen is scanning mode, and it is single-point scanning, the brightness of single-point scanning is high, but once a pixel is caused by particle particles in the manufacturing process When there is a pixel defect, it will cause display failure, so the probability of display failure is high

[0006] The reasons for the high cost of PMOLED color screens are: figure 1 As shown, the existing PMOLED color screen adopts conventional RGB three different color pixel areas arranged side by side, the same color pixels are arranged continuously in a certain direction, and the interval between each color pixel area is very small, so the MASK There are long continuous openings corresponding to the pixel area of ​​each color, such as figure 2 As shown, this kind of continuous elongated opening makes MASK lack of support during the preparation process and is prone to deformation. In order to reduce the deformation during the preparation process, special parameter design is required, which increases the production cost.

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