Liquid crystal display device and manufacturing method thereof
A liquid crystal display and device technology, which is applied in the field of liquid crystal display devices and its manufacturing, and can solve problems such as light leakage and image quality deterioration of LCD devices
Inactive Publication Date: 2004-06-16
LG DISPLAY CO LTD
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- Application Information
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Problems solved by technology
In addition, if there is an error in the alignment margin of the black matrix 6, light leakage occurs in the open spaces A and C and deteriorates the image quality of the LCD device.
Method used
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Embodiment Construction
[0031] Embodiments of the present invention will now be described in detail with reference to examples shown in the accompanying drawings.
[0032] image 3 is a schematic plan view of a liquid crystal display according to an embodiment of the present invention, and more specifically, shows an array substrate having a color filter on thin film transistor (COT) structure. like image 3 As shown, gate lines 112 are formed in a first direction and data lines 126 are formed in a second direction crossing the first direction. The gate lines 112 and the data lines 126 cross each other and define a pixel region P therebetween. A gate pad 117 is formed at one end of the gate line 112 , and a data pad 128 is formed at one end of the data line 126 .
[0033] Thin film transistors T are formed as switching elements adjacent to where the gate line 112 and the data line 126 cross each other. The thin film transistor T includes a gate electrode 114 connected to a gate line 112 for receivi...
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A manufacturing method of a liquid crystal display device includes steps of forming liquid crystal display by patterning the passivation layer and the gate insulating layer by using the black matrix as an etching mask to expose the portion of the drain electrode, the gate pad, and the data pad, forming a first transparent conductive layer on the black matrix, wherein the first transparent conductive layer contacts the portion of the drain electrode, the gate pad, and the data pad, forming a color filter layer on the first transparent conductive layer in the opening, forming a second transparent conductive layer on the color filter layer, the second transparent conductive layer contacting the first transparent conductive layer, and forming a pixel electrode, a gate pad terminal and a data pad terminal by patterning the first and second transparent conductive layers, wherein the pixel electrode is disposed in the pixel area, the gate pad terminal is disposed on the gate pad, and the data pad terminal is disposed on the data pad.
Description
technical field [0001] The present invention relates to a liquid crystal display device, more specifically, to a liquid crystal display device with a color filter layer on an array substrate and a manufacturing method thereof. Background technique [0002] Liquid crystal display (LCD) devices are driven based on the optical anisotropy and polarization properties of liquid crystal materials. Generally, an LCD device includes two substrates spaced apart and facing each other, and a liquid crystal material layer interposed between the two substrates. The substrate includes electrodes facing each other, wherein a voltage applied to each electrode induces an electric field between the electrodes perpendicular to the substrate. The alignment of the liquid crystal molecules of the liquid crystal material layer is changed by changing the strength or direction of the applied electric field. Accordingly, the LCD device can display images by changing the light transmittance of the li...
Claims
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IPC IPC(8): G02B5/00G02B5/20G02F1/1333G02F1/1335G02F1/1343G02F1/1362G02F1/1368
CPCG02F1/134336G02F2201/50G02F1/136209G02F1/133345G02F2001/136222G02F2201/40G02F1/136222
Inventor 金雄权金世埈李种会
Owner LG DISPLAY CO LTD