Next‐generation mobile LCDs with in‐cell retarders

Abstract

In-cell retarders can be a major breakthrough for mobile LCDs. When a patterned in-cell retarder replaces the external retarders on transflective LCDs, brighter and thinner transflective LCDs with lower power consumption and wider viewing angle can be obtained. Additionally, when in-cell retarders are applied in reflective LCDs, the thickness of the LCD is considerably reduced without affecting the optical performance of the reflective LCD. This paper presents the technology needed to make in-cell retarders and the performance of reflective and transflective LCDs with in-cell retarders.

P‐136: Novel In‐Cell Retarder of Alkali Development Type

“…Recently, a lot of efforts have been made to put retarders in LCDs (VA LCDs, IPS LCDs), and make it possible to replace the external retarder with in-cell retarder. Furthermore patterning of in-cell retarder makes it to improve brightness and contrast ratio of LCD panels [1][2][3][4][5][6][7][8].…”

P‐186: High Quality Patterned Retarder for Transflective LCDs

“…An in-cell patterned retarder makes it possible to improve brightness and contrast ratio of transflective LCDs [1][2][3]. The retarder can be obtained by in-situ photo polymerization of a liquid crystalline monomer through a mask then flushing away of non-polymerized region.…”

Retardation‐controlling color filter with two directly stacked retardation layers

“…A different approach to making retardation layers is to use PLC because the optical anisotropy can be set by curing. [6][7][8][9][10][11] Because a PLC film can be formed by an isotropic process, such as coating and polymerization, there is no residual internal stress to cause shrinkage. An LC layer that has been set by polymerization exhibits good thermal stability and requires a thickness of only a few microns to function as a retarder for an LCD.…”