Enhancement of surface anchoring energy in low power consumption transflective liquid crystal displays with three display modes

2018 ◽  
Vol 427 ◽  
pp. 354-362 ◽  
Author(s):  
Cheng-Kai Liu ◽  
Ko-Ting Cheng
2020 ◽  
Vol 03 (02) ◽  
pp. 1-1
Author(s):  
Christopher R. Lavers ◽  
◽  

Advanced optical stealth techniques are of growing importance in the role of manned and unmanned aircraft or ship platforms. We consider here the concept of using passive reflective display elements rather than high power active light projection to achieve a low observable camouflaged ship platform. This paper presents practical consideration towards minimal radiated power user-driven requirements using adaptive liquid crystal electro-optical methods. Optical reflectivity for a multi-layer liquid crystal cell structure composed of a glass/ ITO/ aligning layer/ liquid crystal/ aligning layer/ ITO/ glass will support optical guided modes. Reflectivity as a function of angle and voltage are compared with theory generated from a Fresnel matrix formalism. Voltage device modulated reflectivities are then simulated across a ship platform to evaluate this method for low power consumption, with minimal radiated optical radiation.


2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Min Su Kim ◽  
Philip J. Bos ◽  
Dong-Woo Kim ◽  
Deng-Ke Yang ◽  
Joong Hee Lee ◽  
...  

Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1958
Author(s):  
Jongbin Kim ◽  
Woo-Rim Lee ◽  
Hoon-Ju Chung ◽  
Seung-Woo Lee

In this paper, a new pixel structure using low-temperature polycrystalline silicon and oxide (LTPO) thin-film transistors (TFTs) for low-power liquid crystal displays (LCDs) is proposed. The extremely low off-state current of oxide semiconductor TFTs enables the proposed circuit to operate at a very low frame frequency of 1/60 Hz, so that the power consumption can be significantly reduced. In addition, the low-temperature polycrystalline silicon TFTs with high reliability directly drive pixels, which can achieve stable and flicker-free LCDs. The proposed circuit is fabricated using the LTPO TFT backplane and successfully verified by simulation and measurement results. The measurement results prove that the proposed circuit operates well without further programming for 60 s, and the power consumption in the panel (except backlight power) can be reduced to 0.02% of that of conventional LCD.


2007 ◽  
Vol 46 (3B) ◽  
pp. 1370-1374 ◽  
Author(s):  
Keun Woo Park ◽  
Kyung Hoon Kim ◽  
Ho Suk Maeng ◽  
Sang Hoon Lee ◽  
Chul Ho Kim ◽  
...  

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