High Brightness LCD Research Articles

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6 Articles

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Articles published on High Brightness LCD

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55-inch UHD Outdoor High-Brightness LCD

Proceedings of the International Display Workshops

Dec 7, 2023
Zhixin Sun + 6

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Five-Primary-Color LCDs

We demonstrate a wide color gamut and high brightness LCD TV using a conventional cold cathode fluorescent lamp (CCFL) backlight with five-primary (red, green, blue, yellow, and cyan) colors. Without changing the CCFL backlight and pixel size, the color gamut is widened from ~72% to ~90% and meanwhile the white brightness is increased by more than 20%, as compared to the three-primary. We also validate our simulation results using a 32" five-primary multi-domain vertical alignment LCD TV prototype. The agreement is reasonably good.

Journal of Display Technology

Jan 1, 2010
Hui-Chuan Cheng + 2

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57.4: Fast MPRT with High Brightness LCD by 120Hz Local Blinking HDR Systems

AbstractA 120Hz Local Blinking HDR system was proposed to significantly reduce MPRT down to 3.89ms and keep high brightness almost as well as conventional LCDs, that is distinct from the prior arts, such as Black Band Insertion, Blinking Backlight and Gray Frame Insertion (GFI), those may cause brightness decrement. Furthermore, the intrinsic benefit of high dynamic range (high contrast) and low power consumption also can be achieved.

SID Symposium Digest of Technical Papers

Jun 1, 2009
Lin‐Yao Liao + 3

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P-86: An Optical Simulation Analysis of the Optimal Lamp Assembly Backlight Unit

We present a high brightness LCD backlight unit (BLU) only with the optimal lamp assembly without additional prism sheets such as BEF, DBEF etc. Many factors like lamp position, lamp reflector shape and LGP greatly affect luminance and uniformity of backlight. In this paper, we pay much attention to lamp position and lamp reflector frame so as to find out how they affect BLU properties. With position and reflector shape alteration, the optimal lamp assembly BLU luminance can be 7.49% up compared with the standard according to simulation result. Moreover, there is lower white line in the output of the optimal design of BLU and the luminance uniformity is the same with the standard. At the same time, we study on how to decrease white line defect by means of lamp assembly alteration and have made progress. Lamp reflector shape alteration, LGP moving nearer to lamp are all beneficial to white line decrease.