Sharp Kabushiki Kaisha Corporation

Mitsuhiro Tanaka

Kazuya Yoshimura

Hiroyuki Moriwaki

Tadayoshi Miyamoto

Yoshihide Koyama

Yuji Saai

In an active matrix substrate () of the present invention, a gate bus line () and a gate electrode () extend in the first direction (the x direction). At a contact portion () for electrically connecting the gate bus line () with the drain regions of a first-conductivity-type transistor section () and a second-conductivity-type transistor section (), the direction of the straight line (L) of the shortest distance (d) between one of a plurality of first-conductivity-type drain connecting portions () that is closest to the gate bus line () and the gate bus line () is inclined with respect to the second direction (the y direction).

Active matrix substrate

An object of the invention is to provide a light reflective film which can prevent moire fringes from occurring. A rough face in which a plurality of rows of pyramidal convex portions that are linearly continuous are adjacently formed in parallel with one another is formed on one face of a die film. The rows of convex portions that are linearly continuous are inclined at a predetermined angle with respect to an edge of the die film. An optical film is produced by transferring the die film. A light reflective film is produced by vapor-depositing a light reflection film on the optical film. In a liquid crystal display panel having the light reflective film, the pitch of occurring moire fringes becomes so small that the moire fringes cannot be visually seen, and moire fringes can be prevented from occurring.

Optical film, light reflective film, liquid crystal display panel, method and apparatus for producing an optical film, method of producing a die roller, and method and apparatus for laminating an optical film

The substrate having colored layers of the present invention includes: a substrate; a reflection layer formed on the substrate; and colored layers of different colors formed on the reflection layer and including a plurality of pixel regions, wherein each of the plurality of pixel regions includes a plurality of colorless regions that are substantially colorless.

Substrate having colored layers and method for producing the same

An object of the invention is to prevent color shifting which occurs in a liquid crystal display device in a white display state as well as in a black display state. The liquid crystal display device includes a single polarization layer, a single phase retardation layer, a reflective layer, and a liquid crystal layer, and produces a display by utilizing light reflected from the reflective layer. Based on the wavelength &lgr; of incident light, the retardation value ReF of the phase retardation layer is set approximately equal to (1/4&plus;K/2) &lgr;, and the retardation value ReL of the liquid crystal layer is set approximately equal to (1/2&plus;L/2)&lgr; (K&equals;0, 1, 2, . . . : L&equals;0, 1, 2, . . . ). The angle &Dgr;&phgr; that the absorption axis of the polarization layer makes with the retardation axis of the phase retardation layer is set as 0&deg;<&Dgr;&phgr;<45&deg; or 45&deg;<&Dgr;&phgr;<90&deg;. This prevents the color shifting in the white display state as well as in the black display state in the liquid crystal display device, and improves the contrast.

Liquid crystal display device

A reflection-type color liquid crystal display (LCD) device is made up of a reflecting film, a color filter in which a resin black matrix is formed between color patterns, and a liquid crystal layer, which are disposed in this order between a pair of glass substrates. Furthermore, a light transmissive protective film for protecting the reflecting film when electrodepositing is formed on the reflecting film, and on which an electrodepositing transparent conductive layer is formed, and on which the color filter is formed by an electrodeposition method, thereby accurately forming the resin black matrix which is suitable for reflection-type LCD devices on a reflectional function layer provided within a liquid crystal cell.

Growing community of inventors

Yamatokoriyama, Japan

Mitsuhiro Tanaka