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56.4: Invited Paper: Optimized Algorithm and BLU for Local Dimming of Automotive Displays
SID Symposium Digest of Technical Papers, 2022Local dimming LCDs with a matrix backlight unit (BLU) are favored by many car manufacturers for high quality and low power displays. Automotive application sets high requirement like safety standard, whereas the temperature range and lifespan are wide. The contents are mostly HMIs with high contrast and circular structures. Thus, the two key components,
Chihao Xu, Ramazan Ayasli, Maxim Schmidt
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2010 Digest of Technical Papers International Conference on Consumer Electronics (ICCE), 2010
Local dimming techniques cause clipping artifacts in liquid crystal displays. To overcome the problems associated with the artifacts, the backlight luminance should be adjusted, but this process increases power consumption. In this paper we propose a novel backlight luminance compensation algorithm to reduce clipping artifacts by minimizing the ...
Hong, JJ, Kim, SE, Song, WJ
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Local dimming techniques cause clipping artifacts in liquid crystal displays. To overcome the problems associated with the artifacts, the backlight luminance should be adjusted, but this process increases power consumption. In this paper we propose a novel backlight luminance compensation algorithm to reduce clipping artifacts by minimizing the ...
Hong, JJ, Kim, SE, Song, WJ
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P‐7.11: A Study on Local Dimming Algorithm Design for MINI LED Backlight Display Quality Improvement
SID Symposium Digest of Technical Papers, 2022Today HDR (High Dynamic Range) Displays are increasingly developed. The HDR Display with mini‐led backlight and liquid‐crystal panel plays an important role, it has a lot of advantages like high light (more than 1000nits), high contrast ratio (more than 100000:1), bright color and good permeability and so on.
Tiankuo Shi +10 more
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High‐performance local‐dimming algorithm based on image characteristic and logarithmic function
Journal of the Society for Information Display, 2018AbstractWith the emergence of high‐dynamic range (HDR) image and video, displaying an HDR image or video on a standard dynamic range displays with natural visual effect, clear details on local areas, and high‐contrast ratio has become an important issue. To achieve HDR, local‐dimming technique has been commonly practiced.
Tao Zhang +4 more
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P‐56: Application of the SSC Local Dimming Algorithm for an Edge‐Lit TV
SID Symposium Digest of Technical Papers, 2010Abstract The SSC local dimming algorithm, originally developed for direct‐lit LCD using a local optimization approach, has been modified and extended. A global optimization approach was used to cover the wide light spread over the display due to the edge‐lit.
Tobias Jung +3 more
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An Optimized Backlight Local Dimming Algorithm for Edge-Lit LED Backlight LCDs
Journal of Display Technology, 2015This paper presents an efficient optimized backlight local dimming method that minimizes power consumption under a given allowable distortion for liquid crystal displays with edge-lit light-emitting diode backlight. To reduce image quality fluctuation, an inequality constraint optimization problem is formulated using a given allowable distortion and ...
Seungwook Cha +3 more
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P‐57: Local Dimming Algorithm to Minimize Maximum Luminance Reproductive Error
SID Symposium Digest of Technical Papers, 2011Abstract In regard to local dimming LCD, we defined a new objective function to evaluate reproducibility both at higher and lower luminance based on human vision characteristics and optical characteristics of backlight and LCP. And we developed a local dimming algorithm that can combine higher luminance reproducibility and low power ...
Ryosuke Nonaka, Yuma Sano, Masahiro Baba
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Optimized mini-LED backlight local dimming algorithm for high dynamic range liquid crystal displays
Optics and Lasers in EngineeringBo Wen +4 more
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High-Performance Local Dimming Algorithm and Its Hardware Implementation for LCD Backlight
Journal of Display Technology, 2013The local-dimming backlight has recently been presented for use in LCD TVs. However, the image resolution is low, particularly at weak edges. In this work, a local-dimming backlight is developed to improve the image contrast and reduce power dissipation. The algorithm enhances low-level edge information to improve the perceived image resolution.
Shih-Chang Hsia +3 more
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A local dimming algorithm for low power LCD TVs using edge-type LED backlight
IEEE Transactions on Consumer Electronics, 2010A local dimming algorithm is proposed to reduce the power consumption of LCD TVs using edge-type LED backlight. The proposed local dimming algorithm is implemented by matrix driving of orthogonally located LEDs at the edge of the backlight. The dimming rate of LED string is determined according to target luminance of local blocks and modified to reduce
Hyunsuk Cho, Oh-Kyong Kwon
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