This study aims to develop a novel in‐plane switching liquid crystal display with a fast response time, known as short‐range lurch control in‐plane switching (SLC‐IPS) mode. We found that the distance l, which is orthogonal to the liquid crystal layer thickness, affects the response properties of the liquid crystal display mode. The distance l was obtained using a simple electrode structure. The SLC‐IPS obtained by this structure exhibits a response that is approximately three times faster than that of a conventional IPS. We applied the SLC‐IPS to virtual reality head‐mounted displays and confirmed that its response properties satisfy the requirements for moving picture quality.
The fast response LCD is necessary for high-definition and high-refresh rate virtual-reality head mounted displays. In this study, fast-response properties were achieved by SLC-IPS. High transmittance and stable switching were obtained using a oneside branch structure with small irregularities in the electrode.
We have successfully developed 2.4"QVGA transflective IPS-LCDs which maintains excellent transmissive performance and higher reflectance. We have an in-cell retarder patterned only in the reflective region. And we devised the pixel design so that the reflectance became higher. We have realized transflective LCDs with sufficient outdoor readability and wide viewing angle. Furthermore, we reduced thickness of the LCD panel at the same time.
A 2.2″ QVGA a‐Si TFT‐LCD with a novel integrated gate driver has been developed. High reliability is achieved by assigning pull‐down and retention processes to two individual TFTs and by stabilizing the gate voltages of the pull‐up TFTs. The developed LCD shows sufficient performance even at −35°C after a 5000hour operation test at 55°C.
The problem of a sheet LCD using plastic substrates is the narrow viewing angle of the large retardation of typical plastic materials. We have developed the optical compensation and a new process for plastic IPS‐LCD with wide viewing angle.
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