Pixel structure of OLED display screen

Abstract

The invention discloses a pixel structure of an OLED display screen. The pixel structure comprises pixel units which are arranged on the OLED display screen and arrayed according to a preset law, each pixel unit comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel, the second sub-pixel and the third sub-pixel are in an octagon shape, each octagon is provided with four sets of opposite sides in parallel, and the lengths of the adjacent sides of any two adjacent sub-pixels are equal, and the straight lines where the adjacent sides of any two adjacent sub-pixels are consistent in direction. According to the pixel structure of the OLED display screen, the area of blue sub-pixels in all the pixel units of an OLED can be increased, the ppi of a displayer can be improved, correspondingly, service life of the blue sub-pixels is prolonged, and the display quality of the OLED display screen is improved.

Description

Technical field [0001] The invention relates to a pixel structure of an OLED display screen. Background technique [0002] Organic Light-Emitting Diode (OLED) displays have a series of advantages such as autonomous light emission, low-voltage DC drive, full curing, wide viewing angles, and rich colors. Compared with liquid crystal displays, OLED displays do not require a backlight. Large, low power, its response speed can reach 1000 times that of liquid crystal displays, but its manufacturing cost is lower than that of liquid crystal displays of the same resolution. Therefore, OLED displays have broad application prospects and will gradually become the fastest growing new display technology in the next 20 years. [0003] Among them, the light-emitting layer of the OLED screen is generally made of organic materials using vapor deposition film forming technology to form organic light-emitting components at corresponding pixel positions on the deposition substrate through a metal ma...

AI Technical Summary

Problems solved by technology

[0004] The lifespan of an OLED display is closely related to the pixels, that is, the lifespan of a pixel determines the lifespan of an OLED display to a large extent. At present, the bottleneck for making pixels in the industry lies in the blue sub-pixels. The reason is that the blue The luminous efficiency of sub-pixels under the same current is significantly lower than that of green and red sub-pixels (the gap is very large). In order to make the OLED display display white normally, only the current of blue sub-pixels can be increased. Although this balances Green and red, but because the current is increased, the life of the blue sub-pixel is greatly shortened, thus affecting the life of the OLED display

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