Hitachi, Ltd.

Hitachi Device Engineering Co., Ltd.

Hitachi Displays, Ltd.

Other

Katsuhiko Yarita

Shinji Matsumoto

Akira Sasano

Hideaki Taniguchi

Ryouji Oritsuki

Hirofumi Suzuki

Sakae Someya

Ryuuzoh Nashimoto

Yoshio Toriyama

Masahiko Suzuki

Kaoru Hasegawa

Yoshihiro Imajo

Naoto Kobayashi

Hironori Kondo

Hiroyuki Takahashi

Kengo Kobayashi

Koaru Hasegawa

Hirobumi Kunito

Jun Kikumoto

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

A display device of the present invention has a drain driver mounted to a display substrate and having a gate driver and a controller therein, and also has a power source mounted to a flexible printed board and supplying a power voltage to the gate driver. The wiring of a common control signal outputted from the controller and commonly used in control of the gate driver and the power source is formed on the display substrate so that the number of pads for connecting the display substrate and the flexible printed board is reduced. Thus, the construction of the flexible printed board is simplified, and the entire display device can be made compact.

Display device having driving circuit

Let a drive circuit chip shrink in outer shape size to thereby enable miniaturization of a display device as a whole. The display device is equipped with a plurality of pixels disposed on a substrate in the form of a matrix and more than one drive circuit chip GDR as mounted on the substrate for causing these pixels to perform a display operation, wherein the drive circuit chip GDR has a plurality of output terminals OT for connection to output wiring lines GL formed on the substrate and a plurality of dummy terminals DT disposed adjacent to one another, and wherein at least one of the output wiring lines GL connected to the output terminals OT is not connected to any one of the dummy terminals DT and is disposed to pass through between the mutually adjacent dummy terminals DT.

Display device

There are disclosed various types of TFT active matrix liquid crystal display devices and method of fabrication thereof in which a pixel is divided into three parts, a capacitor is added to each pixel, light shielding is applied to each TFT, and the matrix is driven by a DC cancelling technique.

TFT active matrix liquid crystal display devices

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

Growing community of inventors

Mobara, Japan

Katsuhiko Yarita