Fujitsu Corporation

Sharp Kabushiki Kaisha Corporation

Fujitsu Display Technologies Corporation

Masaki Miyahara

Shinpei Nagatani

Fumiaki Yamada

Eiji Nittou

Toshiaki Suzuki

Satoshi Sekido

Koichi Katagawa

Katsuyoshi Hiraki

Katsunori Tanaka

Yasutake Furukoshi

Seiji Hayashimoto

Takae Ito

Toshimitsu Minemura

Katsuhiko Kishida

Mikio Oshiro

Motohiko Fukuhara

Tosiya Onodera

Polarity patterns (polarity pattern signal POL) are stored in a ROM in a polarity pattern controlling portion. Then, the polarity pattern is changed according to applications of a liquid crystal display panel. Since the polarity pattern is stored in the ROM, the polarity pattern can be changed without modification of a hardware. Also, two sets of polarity patterns or more are stored in the ROM, and then any one polarity pattern can be output according to the application. In addition, the polarity pattern signal POL and image signals RGB are compared with each other, and then the polarity pattern which is to be read from the ROM is switched according to the result.

Display panel driving method, display panel driver circuit, and liquid crystal display device

A lighting device includes a light source, a light conducting plate having an incident surface receiving light emitted from the light source, a back surface and a light-emitting surface, and a reflection member having a first portion facing the back surface, and a second portion located on a side opposite to a side of the light conducting plate on which the light source is located. The second portion is spaced apart from the light conducting plate so that light emitted from the light conducting plate is oriented toward an emission surface of the lighting device.

Lighting device and display device using the lighting device

A light emissive panel unit includes a light source for emitting light, a prism plate into which the light emitted by the light source means incident, a part of the light being reflectable and another part of the light passing through the prism plate, and an adjusting element for partially adjusting an amount of light emitted from a surface of the prism plate.

Light emissive panel unit

The present gamma correction circuit is provided with a memory for supplying correction data for the gamma correction of the luminance of a display means, and a selector for selecting either from N-bit uncorrected digital display data and corrected data for outputting as driving data for the display means. A liquid crystal driver is provided with gamma correction means for gamma-correcting the luminance of a liquid crystal panel inputting the N-bit digital display data for liquid crystal displaying and means for converting the N-bit digital display data into analog data, the gamma correction means comprises a gamma correction circuit of the invention. A liquid crystal display device is provided with a liquid crystal display panel inputting the N-bit digital display data for liquid crystal displaying, and gamma correction means or a liquid crystal driver for gamma-correcting the luminance of the liquid crystal display panel. The gamma correction means or the liquid crystal driver comprises a gamma correction means or a liquid crystal driver of the present invention.

Gamma correction circuit, a liquid crystal driver, a method of

Growing community of inventors

Kanagawa, Japan

Masaki Miyahara