Reflective cholesteric liquid crystal displays (Ch-LCD) with bistability are very attractive because of their excellent readability, low power consumption with image memory, high reflectivity, high contrast ratio at a wide viewing angle, and a low manufacturing cost[1]. Cholesteric liquid crystal displays have several unique features suitable for mobile displays, public information displays, si...

A simplified simulation method to calculate the transmission and diffraction of oblique incident light through a thin two-dimensional layer is presented. The algorithm, based on a ray-tracing technique, uses the Extended Jones-calculus and neglects diffraction within the layer. The algorithm is applied to an in-plane switching liquid crystal display. The transmission at the display surface and ...

modulation using a twisted nematic liquid crystal television’, Appl. Opt., 1989,28, pp. 4845-4852 BONE, M. F., COAT% D., CROSSLAND, w. A., GU”, P., and ROSS, P. w.: ‘Ferroelectric liquid crystal display capable of video line address times’, Displays, July 1987, pp. 115-118 HATANO, T., YAMAMOTO, K., TAKEZOE, H., and FUKUDA, A . : ‘Alignment controls and switching characteristics in a ferroelectr...

We establish necessary conditions in order to design a phase-only wave front modulation system from a liquid crystal display. These conditions determine the dependence of the polarization state of the light emerging from the display on the addressing gray level. The analysis, which is carried out by means of the coherence-matrix formalism, includes the depolarization properties of the device. T...

We have realized a full color 4-inch quarter-VGA amorphous Silicon AM-LCD on 75 μm flexible glass substrates. The overall thickness of the LC cell is <170 μm. With this work we demonstrate that the incorporated ultra-thin glass substrates have suitable properties to be compatible with a standard color AM-LCD process and achieve active matrix backplanes with reliable

A novel image contrast enhancement (ICE) circuit was proposed by modulating the reference voltages of the source driver circuit in liquid-crystal displays (LCDs). The adjustment of reference voltages is achieved immediately by applying external adjustment codes, which may be generated in accordance with the video data distribution on image displays and the liquid crystal materials, and leads to...

Effect of photoaligning azo-dye layers thickness on the alignment quality and multiplex operation of passively addressed ferroelectric liquid crystal (FLC) 1.5μm display cells has been investigated. An optimal (about 3~5 nm) azo-dye layer thickness, that provides both the highest multiplex operation steadiness and the best contrast ratio of FLC display cells was found.

Linear code with complementary dual(LCD) are those codes which meet their duals trivially. In this paper we will give rather alternative proof of Massey’s theorem[8], which is one of the most important characterization of LCD codes. Let LCD[n, k]3 denote the maximum of possible values of d among [n, k, d] ternary codes. We will give bound on LCD[n, k]3. We will also discuss the cases when this ...