22‐1: A Novel Gamma Prediction Algorithm for FDC Region of AMOLED Panel Based on CNN Model

Author:

Xu Chaofan1,Tian Xuesong1,Hou Shuai1,Li Jian1,Zuo Yini1,Wang YiFei1,Shang Fei1,Kim Changman1

Affiliation:

1. BOE Technology Group Co., Ltd. Chengdu China

Abstract

To ensure the uniformity of panel image quality, it is necessary to gamma correct the normal and FDC(full display camera) regions of the panel, but the gamma TT(tack time) is particularly long, especially the FDC takes about 110 seconds, resulting in lower production efficiency. Currently, the FDC correction algorithm uses the gamma value of the previous panel as the initial value, and its average error is about 60, and the error is large. To reduce the FDC gamma TT, this paper proposes a new algorithm based on CNN, which inputs normal gamma and predicts FDC gamma. The predicted results are taken as the starting value of the gamma in the FDC region, the starting value error is small and the FDC gamma TT is greatly shortened. Experimental results show that compared with the existing algorithm, the accuracy of the initial value of the FDC region is increased by 10 times. FDC gamma TT was reduced by about 3.5 times.

Publisher

Wiley

Subject

General Medicine

Reference14 articles.

1. LCD gamma correction by nonlinear digital-to-analogue converter

2. Gamma correction and perceptual coding of video;MISHRA AJAY Kumar;STM icro-eletronics,2005

3. Visual gamma correction for LCD displays

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