Liquid crystal display and method for fabricating the same
A liquid crystal display, pixel technology, applied in semiconductor/solid-state device manufacturing, static indicators, instruments, etc., can solve problems such as expensive masks, adding thin film transistors, and problems
Inactive Publication Date: 2008-01-02
LG DISPLAY CO LTD
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Problems solved by technology
This can be problematic as the photolithography process reduces yield and increases the likelihood of defective TFTs
[0026] In particular, since masks designed to form patterns are very expensive, if the number of masks used for process steps increases, the manufacturing cost of LCDs increases accordingly
Method used
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[0040] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0041] FIG. 2 is a partial plan view of an LCD array substrate according to a first embodiment of the present invention. In particular, FIG. 2 shows a pixel including a thin film transistor of the pixel portion.
[0042] Although an actual LCD includes M×N pixels formed by N gate lines and M data lines, where the gate lines cross the data lines, one pixel is shown in FIG. 2 for simplicity of illustration.
[0043] As shown in FIG. 2 , the array substrate 110 according to the first embodiment of the present invention includes gate lines 116 and data lines 117 arranged vertically and horizontally on the substrate 110 to define pixel regions. The thin film transistors in the intersecting parts, and the pixel electrode 118 formed in the pixel area and connected to the thin film transistors, drive the liquid crystal (not shown) together with the common ele...
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Abstract
A liquid crystal display and a method for fabricating the same are disclosed. The method for fabricating a liquid crystal display includes preparing an insulating substrate defining a TFT region of a pixel portion, forming an active layer on the substrate to cover the TFT region of the pixel region, forming a gate electrode of the pixel portion on the active layer, forming a source region of the pixel portion and a drain region of the pixel portion in the active layer at both sides of the gate electrode of the pixel portion, forming a passivation film having first and second contact holes on the substrate having the drain region of the pixel portion, the first and second contact holes respectively exposing the source region of the pixel portion and the drain region of the pixel portion, sequentially forming a transparent conductive film and a metal film on the passivation film, and selectively etching the metal film and the transparent conductive film to form a source electrode pattern of the pixel portion / a source electrode of the pixel portion, which are sequentially deposited to cover the first contact hole, and a drain electrode pattern of the pixel portion / a drain electrode of the pixel portion, which are sequentially deposited to cover the second contact hole.
Description
[0001] The disclosures in this application relate to prior Korean Patent Applications No. 10-2006-0061669 and No. 10-2006-124001 filed on June 30, 2006 and December 7, 2006, which are incorporated herein in their entirety The contents are for reference. technical field [0002] The present invention relates to a liquid crystal display and a manufacturing method thereof, and more particularly relates to a liquid crystal display and a manufacturing method thereof which simplify manufacturing process steps and increase yield by reducing the number of masks. Background technique [0003] In the modern information society, displays, as information transmission media, are valued. Key to the development of displays is the need for low power consumption, thin and light weight, and high image quality. Liquid crystal displays (LCDs), which are mainstream devices in flat panel displays (FPDs), can meet the above-mentioned requirements in performance and can be mass-produced. Accordin...
Claims
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Login to View More IPC IPC(8): G02F1/1362G02F1/1333G02F1/133H01L21/00G03F7/20
CPCG02F1/134309G02F1/136213G02F1/136286H01L27/124H01L27/1255H01L27/1259
Inventor 金荣柱李锡宇朴秀婷
Owner LG DISPLAY CO LTD