Design of LED Backlight Module for Low Power LCD TV

Guang-sheng, 华广胜 Hua; Zhan-chang, 布占场 Bu; Xiao-pan, 郑效盼 Zheng; Zhi, 李智 Li; Yan-jun, 孙彦军 Sun; He-tao, 王贺陶 Wang; Bo-chang, 王伯长 Wang; Fei, 王飞 Wang; Kai, 颜凯 Yan; Kun, 鹿堃 Lu

doi:10.3788/yjyxs20112604.0460

液晶与显示

2011

DOI: 10.3788/yjyxs20112604.0460

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Design of LED Backlight Module for Low Power LCD TV

华广胜 Hua Guang-sheng

布占场 Bu Zhan-chang²,

郑效盼 Zheng Xiao-pan³

et al.

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Study on Viewing Angle Characteristics of Different Stacked Liquid Crystal Display Module

Zeng

et al. 2020

Symp Digest of Tech Papers

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View angle is the key optical parameter of LCD(liquid crystal display) module, In order to meet the visual experience of smart home products, it is necessary to study the view angle and brightness characteristics of LCD module. Firstly, this paper introduces the key components of LCD module, secondly, defining the concept of FWHM (full width at half maximum) view angle to facilitate data comparison, finally, the 6.95 Google module is used to test and analyze the traditional 4‐layer film stack, single prism stack, R‐prism stack and DBEF5+Down diffuser stack. The test results show that the view angle of 4‐layer film stack is the minimum about 25°, but brightness is the maximum, the view angle of DBEF5+Down diffuser stack is the maximum above 50°, but brightness is the minimum; as for the R‐prism stack, with the increase of prism radian, the view angle will increase, but the brightness will decrease, as for the single prism stack, the view angle of the module will rise, and the maximum increase will be in the direction consistent with the prism bump, but the brightness will decrease at the same time. Therefore, it is necessary to make a reasonable selection according to the customer’s specifications. The experimental data in this paper can play an important reference role in the design of view angle and brightness in smart home LCD module.

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Study on Viewing Angle Characteristics of Different Stacked Liquid Crystal Display Module

Zeng

et al. 2020

Symp Digest of Tech Papers

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show abstract

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Design of LED Backlight Module for Low Power LCD TV

Cited by 1 publication

References 0 publications

Study on Viewing Angle Characteristics of Different Stacked Liquid Crystal Display Module

Study on Viewing Angle Characteristics of Different Stacked Liquid Crystal Display Module

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