Hitachi, Ltd.

Hitachi Device Engineering Co., Ltd.

Hitachi Displays, Ltd.

Other

Panasonic Liquid Crystal Display Co., Ltd.

Yoshio Toriyama

Katsuhiko Yarita

Naoto Kobayashi

Kaoru Hasegawa

Yoshihiro Imajo

Masahiko Suzuki

Hironori Kondo

Shiro Ueda

Kengo Kobayashi

Katsuhiko Shibata

Norihisa Fukayama

Akio Tezuka

Saburo Watanabe

Masafumi Nagaoka

Shinji Shimizu

Koaru Hasegawa

A display device includes a display panel unit and a backlight unit which radiates light toward the display panel. The display panel unit includes a display panel on an upper surface of a box-shaped panel housing which has first projecting portions on side walls of the housing. The backlight unit incorporates a light source in a bottom portion of a box-shaped light source housing which has second projecting portions on side walls of the light source housing. By bringing the first projecting portions and second projecting portions into contact with each other, a distance between the light source of the backlight unit and the display panel can be held. Further, by forming third projecting portions which project further than the first projecting portions on the panel housing, handling of the display panel unit is facilitated.

Display device

Plural light-emitting diodes are disposed in an on-line arrangement on a surface a circuit board facing an optical guide and spacers having a projecting dimension larger than the projecting dimension of this light-emitting diode from the surface are disposed adjacent to the light-emitting diode on the surface of the circuit board.

Liquid crystal display device having spacers disposed between an edge lit optical guide and light-emitting elements

Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel.

Liquid crystal display device video having signal driving circuit mounted on one side

Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel.A liquid crystal display device includes a liquid crystal display panel, a light guide plate, a fluorescent tube, and a lamp reflector. First and second lamp cables of different length are connected to the fluorescent tube. One end of the fluorescent tube is inserted in a hole of a first rubber bush and a part of the one end of the fluorescent tube is connected to the first lamp cable in the hole of the first rubber bush and an other end of the fluorescent tube is inserted in a hole of a second rubber bush and a part of the other end of the fluorescent tube is connected to the second lamp cable in the hole of the second rubber bush. The first and second lamp cables are extracted from a same place of a mold case.

Liquid crystal display device having a mold case and rubber bushes for receiving ends of a fluorescent tube enabling connection of lamp cables thereat

Herein disclosed are a liquid crystal display device and a data processing device, which can have their frame portions reduced in area to reduce the size and weight by extracting the terminals of video signals to only one side of a liquid crystal display panel and by arranging a video signal line driving circuit substrate to be connected with the terminals, only at one side of the display panel.A liquid crystal display device includes a liquid crystal display panel, a light guide plate, a fluorescent tube, and a lamp reflector. First and second lamp cables of different length are connected to the fluorescent tube. One end of the fluorescent tube is inserted in a hole of a first rubber bush and a part of the one end of the fluorescent tube is connected to the first lamp cable in the hole of the first rubber bush and an other end of the fluorescent tube is inserted in a hole of a second rubber bush and a part of the other end of the fluorescent tube is connected to the second lamp cable in the hole of the second rubber bush.

Liquid crystal display device having rubber bushes for receiving ends of a fluorescent tube and enabling connection of lamp cables thereat

Liquid crystal display with casing structure

A frame area of a liquid crystal display device is reduced by improving the layouts of extraction lines DTM of drain wiring of a TFT liquid crystal display device, a driving IC of the TFT liquid crystal display device and a flexible board FPC for a drain driving circuit of the TFT liquid crystal display device.

Liquid crystal display device having smaller frame area

A liquid crystal display device includes a liquid crystal display element having a liquid crystal layer sandwiched between a pair of upper and lower substrates, a flexible circuit board disposed around a periphery of the liquid crystal display element, an illuminating light source having a line light source, a light guide and a reflector and disposed behind the liquid crystal display element, a metal upper case having a sidewall bent back and a display window, a resin lower case for housing the illuminating light source. The upper and lower cases are clamped by crimping plural nails formed in the sidewall of the upper case at an outer surface of the lower case after stacking the liquid crystal display element, the flexible circuit board and the illuminating light source between the upper and lower cases. An electrical connection between the upper case and a grounding pattern formed on the flexible circuit board is made by at least one component in chip form having a conductive region and being attached to a portion of the grounding pattern bent over the lower substrate, and a metal tape having one end thereof being interposed between opposing portions of the upper and lower cases which are pressed against each other and the other end thereof being positioned to be pressed against the conductive region of the at least one component.

Liquid crystal display device with its upper and lower cases clamped by crimping portions thereof

Liquid crystal display device video having signal driving circuit

Liquid crystal display device having video signal driving circuit

A liquid crystal display device in which a back light is arranged below a liquid crystal display panel having a plurality of pixels arrayed on a transparent substrate surface and in which a prism plate having a plurality of stripe grooves arrayed in parallel is arranged between the liquid crystal display panel and the back light. If the stripe grooves has a pitch .lambda..sub.1 (mm) and if the pixels in parallel with the stripe grooves has a pitch .lambda..sub.2 (mm), the liquid crystal display device is constructed to satisfy a relation of .lambda..sub.1 .ltoreq.0.075.lambda..sub.2 /(.lambda..sub.2 +0.075). This construction can increase the brightness of the back light and prevent the interference fringes from being formed on the display frame.

Liquid crystal display device having a diffuser integrally formed with a

Liquid crystal display which suppresses interference fringes

Growing community of inventors

Nagara-machi, Japan

Yoshio Toriyama