Display device

A technology of liquid crystal display device and liquid crystal display panel, which is applied in the direction of coupling device, optics, instrument, etc., can solve the problem of fluorescent tube installation working hours, discharge and other problems, and achieve excellent pressure resistance characteristics, ensure reliability and remarkable effect Effect

Inactive Publication Date: 2008-11-26
HITACHI DISPLAYS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] On the other hand, when a plurality of fluorescent tubes are used, man-hours for fluorescent tube installation become a problem
Furthermore, since a high voltage is applied to the fluorescent tube, there is a danger of a discharge occurring between the terminals of the fluorescent tube

Method used

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Effect test

Embodiment 1

[0075] figure 1 It is a schematic diagram of a liquid crystal display device. A liquid crystal display panel 1 is housed in a frame-shaped front frame 2 . The liquid crystal display panel 1 is composed of a TFT substrate formed with image signal lines, scanning lines, pixel electrodes, and thin film transistors (TFTs), an opposite substrate formed with a color filter substrate, etc., a lower polarizing plate attached to the TFT substrate, It is composed of an upper polarizing plate pasted on the opposite substrate. The liquid crystal display panel 1 is covered by the front frame 2, in figure 1 Only the display screen of the liquid crystal display panel 1 can be seen.

[0076] A backlight 3 is provided on the back of the liquid crystal display panel 1 . An image is formed by using the liquid crystal display panel 1 to turn light from the backlight 3 on and off for each pixel. In order to efficiently emit light to the liquid crystal display panel 1, the backlight 3 is compo...

Embodiment 2

[0106] Figure 25 is the connector 50 of the second embodiment of the present invention. exist Figure 25 In this case, a cutout 61 is formed between the insertion hole 51 of the fluorescent tube 37 and the insertion hole 51 instead of the recess 60 . That is, the connector 50 of the present embodiment has a structure in which a connecting portion 50 for one fluorescent tube is connected through the bottom and the back portion. According to the structure of the present embodiment, compared with the first embodiment, the strength of the inner side wall 57 between the insertion hole 51 and the insertion hole 51 can be further weakened. Therefore, the fluorescent tube 37 can be inserted more easily, and the stress on the fluorescent tube 37 and the cable at the time of insertion can be made smaller.

[0107] On the other hand, since the inner side wall 57 exists between the insertion hole 51 of the fluorescent tube 37 of the connector 50 and the insertion hole 51, the creeping...

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Abstract

This invention provides a liquid crystal display device, which includes a vertical backlight source. A connector (50) formed by silicon rubber keeps end parts of a plurality of fluorescent tubes. A slit part (53) is pushed out to the outside along the arrow direction in the picture so as to install fluorescent tubes (37) into an inserting hole (50). A concave part (60) is formed between the inserting hole (51) and the inserting hole (51) of the connector (50) so as to enable the slit part (53) to easily open and prevent the damage to fluorescent tubes (37) or fluorescent tube terminal (371). And a plurality of fluorescent tubes can be effectively installed at the backlight source without damage.

Description

technical field [0001] The present invention relates to a liquid crystal display device, in particular to a direct-type backlight and a liquid crystal display device using the direct-type backlight. Background technique [0002] Liquid crystal display devices are also widely used in the field of large display devices such as TVs. In a large display device, in order to obtain sufficient brightness, the backlight source often adopts a direct type. Fluorescent tubes are mainly used as the light source of the backlight. Fluorescent tubes are very long to deal with large screens. In addition, the diameter of the fluorescent tube is small and the luminous efficiency is good. Therefore, thin and long fluorescent tubes are often used in large-screen display devices. [0003] A thin and long fluorescent tube is mechanically unstable, so an intermediate jig is used in the middle of the terminal portion supporting the fluorescent tube. This intermediate jig affects the light emiss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/1335
CPCG02F1/133604H01R33/0863G02F1/133608
Inventor 太田享之田中和友
Owner HITACHI DISPLAYS
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