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Apparatus of driving lamp and liquid crystal display device using the same

一种液晶显示装置、驱动装置的技术，应用在照明装置、静态指示器、光学等方向，能够解决显示板亮度偏差、显示板亮度不均等问题

Active Publication Date: 2005-05-18
LG DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the luminance of the display panel deviates, resulting in uneven luminance in the display panel

Method used

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  • Apparatus of driving lamp and liquid crystal display device using the same
  • Apparatus of driving lamp and liquid crystal display device using the same
  • Apparatus of driving lamp and liquid crystal display device using the same

Examples

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Embodiment Construction

[0028] Reference will now be made in detail to the preferred embodiments, examples of which are illustrated in the accompanying drawings.

[0029] Figure 4 is a rear surface view of a lamp driving device for a liquid crystal display device according to an embodiment of the present invention. exist Figure 4 Among them, the liquid crystal display device may include a liquid crystal display module 100 , a first inverter board 116 , a second inverter board 112 and a cable 130 for connecting the second inverter board 112 to the first inverter board 116 . The first inverter board 116 may be arranged along one side edge of the rear surface of the liquid crystal display module 100 , and the second inverter board 112 may be arranged along the other side edge of the liquid crystal display module 100 , opposite to the first inverter board 116 . The first and second inverter boards 116 and 112 may have inverters 114 and 110 and output channels CH1 , CH2 , CH3 and CH4 . A plurality of h...

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PUM

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Abstract

A lamp driving device and a liquid crystal display device using the same. The invention discloses a lamp driving device, comprising: a first inverter board, having a first inverter that provides a first high-voltage AC waveform to a first electrode of the lamp through a first high-voltage line; and a second inverter board , having a second inverter providing a second high voltage AC waveform to the second electrode of the lamp through a second high voltage line, the second inverter being different from the first inverter.

Description

technical field [0001] The present invention relates to a liquid crystal display device, and more particularly, to a lamp driving device and a liquid crystal display device using the same to provide uniform brightness therein. Background technique [0002] LCD devices have been rapidly developed as flat display panels in portable computers, desktop computers, and large-sized information displays due to high image quality, lightness, thinness, short size, and low power consumption. Most LCDs are passive devices that display images by controlling the amount of light input from an external light source. Thus, a separate light source (backlight unit) is generally employed to illuminate the LCD device. [0003] Generally, a halogen cathode fluorescent tube or a cold cathode fluorescent lamp (hereinafter referred to as CCFL) is used as a light source in a backlight unit. CCFL is a light source tube that utilizes the phenomenon of cold emission (emission of electrons due to the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G02F1/13357G09G3/20H01J19/78H05B41/00H05B41/282
CPCG02F1/133604H05B41/2822H05B41/2824G02F1/133
Inventor 具胜万安钟基朴成龙
Owner LG DISPLAY CO LTD
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