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Liquid crystal display device

A liquid crystal display and device technology, applied in the field of liquid crystal display devices, can solve the problems of line breakage and crosstalk, etc.

Active Publication Date: 2010-11-17
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the possibility of wire breakage and crosstalk is high

Method used

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  • Liquid crystal display device
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Examples

Experimental program
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Effect test

no. 1 approach

[0044] figure 1 is a plan view showing a liquid crystal display device according to a first embodiment of the present invention, figure 2 is a plan view showing the data driver IC, image 3 is a plan view showing an in-plane switching (IPS) mode liquid crystal display device according to a first embodiment of the present invention.

[0045] According to the liquid crystal display device of the first embodiment of the present invention, such as figure 1 As shown, it includes a display panel 10 composed of a display area 12 and a non-display area 14 surrounding the display 12; a plurality of gate lines 22 and data lines 24 formed on the display area 12 to define a plurality of pixel areas 20 cross each other; A plurality of thin film transistors 21 formed at each intersection of gate lines 22 and data lines 24; a plurality of pixel electrodes formed in the pixel region and connected to each thin film transistor; a plurality of first common transistors formed parallel to each ...

no. 2 approach

[0069] Figure 4 is a plan view showing important parts of a liquid crystal display device according to a second embodiment of the present invention.

[0070] In the first embodiment of the present invention, a common voltage supplied from outside is applied to each second common line 32 respectively. Therefore, when the common voltage supplied from the outside fluctuates, there is a possibility that the common voltage is not supplied uniformly.

[0071] To this end, at least one island-shaped second common line connection pattern 92 is formed at least in the non-display area 14 between the data pad portion 50 and the display area 12 in the second embodiment of the present invention. In order to ensure uniform supply of the common voltage via the first common voltage input terminal 64 of the adjacent data driver IC 60, at least two adjacent second common lines 32 and at least two adjacent common pad lines 54 are connected to the second common The line connects the pattern 92...

no. 3 approach

[0081] Figure 5 is a plan view showing an important part of a liquid crystal display device according to a third embodiment of the present invention, Figure 6 is a cross-sectional view of a liquid crystal display device according to a third embodiment of the present invention, showing a region where data lines and second common line connection patterns overlap each other, Figure 7 is a plan view of a liquid crystal display device according to a third embodiment of the present invention, showing line widths of overlapping portions of data lines and second common line connection patterns.

[0082] Such as Figure 5 As shown, in the liquid crystal display device according to the third embodiment of the present invention, the second common line connection pattern 92 is formed to have an integral structure in the non-display area 14 between the data pad portion 50 and the display area 12, and This has the effect of compensating for small differences in the common voltage suppl...

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PUM

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Abstract

A liquid crystal display device having uniform common voltage distribution within a display panel is disclosed. The liquid crystal display device includes a display panel including a display area and a non-display area surrounding the display area, a plurality of gate lines and data lines arranged on the display area to intersect each other, so as to define a plurality of pixel regions, thin-filmtransistors formed at respective intersections of the gate lines and the data lines, pixel electrodes formed on the respective pixel regions and connected to the thin film transistors, a plurality offirst common lines provided between the neighboring gate lines and arranged parallel to the gate lines, and a plurality of second common lines provided between the neighboring data lines and arrangedparallel to the data lines, the second common lines being electrically connected to the first common lines.

Description

[0001] This application claims the benefit of Korean Patent Application No. P2007-080354 filed on August 9, 2007 and Korean Patent Application No. P2007-080355 filed on August 9, 2007, at Its entire contents are hereby incorporated by reference. technical field [0002] The invention relates to a liquid crystal display device, in particular to a liquid crystal display device capable of realizing uniform distribution of common voltages in a display panel to improve display quality. Background technique [0003] With the development of the information society, there is a need to develop novel image display devices capable of solving drawbacks of conventional cathode ray tubes (CRTs), such as their weight and volume. Therefore, a variety of flat display devices, including liquid crystal display (LCD) devices, organic light emitting diodes (OLED), plasma flat panel display (PDP) devices, surface-current-carrying electron-emitter display (SED) devices, etc., have caused great bi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1362H01L27/12H01L21/60G09G3/36
CPCH01L2924/0002H01L2924/00G02F1/133G02F1/1345
Inventor 李载钧吴锦美吴载映申东秀
Owner LG DISPLAY CO LTD