Pixel structure and display device

Abstract

The present invention relates to a pixel structure and a display device. The pixel structure includes a plurality of blue pixel groups, a plurality of yellow pixel groups, a first filter film and a second filter film; the blue pixel group consists of vertically arranged A plurality of blue sub-pixels is composed, and a yellow pixel group is composed of a plurality of yellow sub-pixels arranged in the vertical direction, and a blue pixel group and a yellow pixel group adjacent in the horizontal direction form a mixed pixel group, and a plurality of mixed pixels The groups are arranged in the horizontal direction, and in the mixed pixel group, each blue sub-pixel is adjacent to three sequentially arranged yellow sub-pixels, and the blue sub-pixel and the three yellow sub-pixels form a pixel unit; each A yellow sub-pixel in each pixel unit is provided with a first filter film in the light-emitting direction, the first filter film is used to convert yellow light into red light, and the light-emitting direction of another yellow sub-pixel in each pixel unit A second filter film is arranged on it, and the second filter film is used to convert yellow light into green light.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel structure and a display device. Background technique [0002] The preparation of OLED and QLED devices by inkjet printing process is more and more valued by the display industry due to its high material utilization rate, no need for high vacuum conditions and fine masks, and suitable for the preparation of large-scale displays. mainstream technology. [0003] For the inkjet printing process, how to fabricate displays with high resolution is one of the main technical challenges. To obtain printed devices with high resolution, it is necessary to increase the density of RGB pixels, which means reducing the size of RGB sub-pixels. For the inkjet printing process, due to the influence of many factors such as the alignment error between the print head and the substrate, the motion error of the printer transmission mechanism, and the deviation of the ink drop flight angle (de...

AI Technical Summary

Problems solved by technology

For the inkjet printing process, due to the influence of many factors such as the alignment error between the print head and the substrate, the motion error of the printer transmission mechanism, and the deviation of the ink drop flight angle (deviation from the vertical drop), the ink There is a certain limit to the drop's "drop point accuracy"

Therefore, if you want to reduce the size of the sub-pixel, there is also a certain limit, that is, the dimension of the length and width of the sub-pixel cannot be lower than a limit value, otherwise the actual landing point of the ink droplet will exceed the target pixel area and enter the adjacent other sub-pixel areas, causing color mixing issues to occur

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