A pixel structure of pmoled screen body and pmoled screen body

Abstract

The application discloses a pixel structure of a PMOLED screen body and the PMOLED screen body; the pixel structure includes several pixel units; the pixel unit includes a first color pixel area and a second color pixel area arranged up and down. According to the technical solution provided by the embodiment of the present application, the pixel unit further includes a third color pixel area, and the first color pixel area and the third color pixel area are located side by side above or below the second color pixel area; The technical solution of the application is different from the shape of the MASK with elongated openings in the prior art. It can adopt the shape of the MASK with spaced openings, avoiding the establishment of elongated openings on the MASK, and realizing the vertical and horizontal openings on the MASK. The connection avoids the problem that MASK is easy to sag because there is no horizontal connection on both sides of the opening, and also solves the problem of high production cost of MASK caused by special parameter design to avoid sagging.

Description

Technical field [0001] The present disclosure generally relates to an organic electroluminescent device, and specifically, the technical field of a PMOLED screen, in particular to a pixel structure of a PMOLED screen and a PMOLED screen. Background technique [0002] After nearly three decades, the organic electroluminescent device (English is known as ORGANIC Light EmittingDevice, referred to as OLED) as the next generation of display technology, has the advantages of fast response, high contrast, and planarization, has made a certain extent in the field of display Applications. [0003] Among them, the PMOLled color screen has been widely used in medical, electronics, wear products, household appliances and other fields. [0004] Usually the implementation method of the PMOLED screen is an array of RGB three side-by-side arrangement pixels. Through the scanning method, the ignition of single point monochrome / multi-color pixels is realized. Relative to AMOLED, PMOLED single-po...

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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