Laser & Optoelectronics Progress, Volume. 57, Issue 10, 101106(2020)
Research on RGB-Delta Structure AMOLED Sub-Pixel Rendering Algorithm
Due to the limitation of manufacturing technology, the sub-pixels of RGB-Delta structure active-matrix organic light emitting diode (AMOLED) are arranged irregularly, the trichrome sub-pixels are distributed as triangle, and each pixel unit is composed of two sub-pixels, so the RGB image cannot be displayed normally. In order to solve this problem, by analyzing the arrangement characteristics of sub-pixels in RGB-Delta structure AMOLED, this paper proposes the sharing principle and method of the sub-pixels in rendering unit, and calculates the gray-scale difference between a sub-pixel and a shared sub-pixel in the original image. A method based on threshold comparison is proposed to calculate the optimal rendering weight coefficient, and the virtual pixel grayscale value is obtained by summing the pixel gray-scale value weights of the original image. Random image tests show that the mean square error of the processed image and original image is 4.68×10 -5, and the mean peak signal-to-noise ratio is 40.45 dB. At the same time, the algorithm is verified by point screen display, including high-frequency images such as text and line. The proposed algorithm can restore the image information without distortion and effectively control the color edge influence.
Get Citation
Copy Citation Text
Ben Ma, Wenhua Yang, Yongsheng Yin, Chen Jia, Yuefeng Yu. Research on RGB-Delta Structure AMOLED Sub-Pixel Rendering Algorithm[J]. Laser & Optoelectronics Progress, 2020, 57(10): 101106
Category: Imaging Systems
Received: Sep. 4, 2019
Accepted: Oct. 25, 2019
Published Online: May. 8, 2020
The Author Email: Yin Yongsheng (yinyongsheng@hfut.edu.cn)