Seiko Epson Corporation

Seiichi Sakura

Kenji Uchiyama

Eiji Muramatsu

Kenichi Maruyama

Masaru Kamimura

Shigetoshi Yamada

Kazuaki Furuichi

Kinichi Maeda

Chiyoaki Iijima

Toshihiko Tsuchihashi

A retardation film and an upper polarized light separator are provided on the upper side of a liquid crystal cell . A diffuser , a lower polarized light separator , a color filter , a PET film and an Al deposited film are provided on the lower side of the liquid crystal cell . As the upper polarized light separator and the lower polarized light separator , a polarized light separator (reflective polarizer) is used, which reflects linearly-polarized light in one direction as linearly-polarized light in the one direction, and transmits linearly-polarized light in another direction perpendicular to the one direction as linearly-polarized light in the other direction. The light emitted from LED is introduced into a light guide plate between the upper polarized light separator and the retardation film through a light guide . Then the light is emitted from the lower side of the light guide plate to the liquid crystal cell

Display device and electronic apparatus using the same

A liquid crystal display apparatus is provided which requires a small, thin and compact area for mounting semiconductor chips for driving liquid crystal and, accordingly, has a reduced cost. Semiconductor chips for driving liquid crystal are mounted on a surface (for example, a first layer) of a multi-layer substrate. The surface has input lines to the chips and output lines from the chips. The input lines have lands for connecting adjacent multi-layer substrates to each other. At least one intermediate layer is formed between an upper layer and a lower layer, the intermediate layer having bus lines. The bus lines and the input lines of the first layer are connected to one another via through holes in the first layer. The output lines of the first layer and terminals of the third layer are connected to one another via through holes in the first, second and third layers.

Liquid crystal display apparatus having multi-layer substrate

Liquid crystal display apparatus structure for mounting semiconductor

Liquid crystal display apparatus, structure for mounting semiconductor

A bump electrode of an inexpensive and reliable semiconductor device is provided in which a remaining metal wire portion produced during bump electrode formation is eliminated. The remaining metal wire portion made in a bump electrode forming method for a semiconductor device using a wire bonding technique is pressed and reshaped from above with heat or ultrasonic waves so as to apply pressure and heat to the bump electrode by using a stamping tool.

Semiconductor device, method of forming bump electrode of a

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Suwa, Japan

Seiichi Sakura