OLED display device

Abstract

The invention provides an OLED display device, and the device comprises a first pixel unit, a second pixel unit, a third pixel unit and a fourth pixel unit, wherein the first, second, third and fourth pixel units are repeatedly arranged. Each pixel unit comprises four subpixels, and the four subpixels are shaped like the same pentagon and can form a hexagon. Through the arrangement of the four pixel units, the device enables the pixels with the same color in different pixel units to form a pentagon. During the manufacturing of a mask plate, the pentagons formed by the pixels with the same color can be made into mask plate openings. The mask plate openings and the interval between the openings are increased, thereby reducing the manufacturing difficulty of the mask plate. Meanwhile, during evaporation of pixel colors, the size of the mask plate is increased, and the alignment difficulty of the mask plate is reduced, and the evaporation color mixing is also improved. Because the manufacturing difficulty of the mask plate is reduced and the evaporation color mixing in an evaporation process is also improved, the resolution of a display panel can be further improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display device. Background technique [0002] An organic light-emitting display device uses an organic light-emitting diode (English full name Organic Light-Emitting Diode, OLED for short) to display images, and is a self-luminous device. [0003] When manufacturing OLED pixels in the prior art, the evaporation of pixels is realized through a high-precision alignment system and a fine mask on the array substrate of a thin film transistor (Thin Film Transisitor, referred to as TFT). RGB (red, green, blue) three-color system and RGBW (red, green, blue, white) four-color system, such as figure 1 Shown is the pixel arrangement of the RGB three-color system, figure 2 Shown is the pixel arrangement of the RGBW four-color system. According to the classification of the mask, it can be divided into two types: long slit and slot. The long slit is mainly used in such as figure...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention provides an OLED display device, which adopts a new pixel arrangement method to solve the problems in the prior art that the manufacturing process of the mask plate is relatively difficult and the problem of color mixing and deviation in the evaporation process is easy to occur

Images