Liquid crystal display device and manufacturing method thereof

Abstract

The invention discloses a LCD device, comprising a first substrate divided into a pixel part, a first and a second pad part; a gate and a gate line formed in the pixel part of the first substrate; an active pattern formed on the gate in an island shape and provided with a width smaller than that of the gate; an insulation film formed on the first substrate and provided with a first and a second contact hole respectively exposed with the active electrode region and the drain electrode region of the active pattern; an active electrode and a drain electrode, formed in the pixel part of the first substrate and electrically connected with the active electrode region and the drain electrode region of the active pattern through the first and the second contact hole; a data line formed in the pixel part of the first substrate and crossed with the gate line so as to limit the pixel region; an etching barrier structure positioned between the active electrode and the drain electrode and formed as the insulation film; a pixel electrode electrically connected with the pixel electrode; and a second substrate adhered with the first substrate in a face to face mode, the second substrate is a filter substrate.

Description

technical field [0001] Embodiments of the present invention relate to a display device, in particular to a liquid crystal display (LCD) device and a manufacturing method thereof. Although the embodiments of the present invention are applicable to a wide range of applications, they are particularly suitable for simplifying the manufacturing process by reducing the number of masks, improving productivity, and improving device reliability. Background technique [0002] As consumer interest in information displays increases and demand for portable (mobile) information devices increases, research and commercialization of light and thin flat panel displays ("FPDs") are also increasing. [0003] Among FPDs, a liquid crystal display ("LCD") is a device for displaying images by using optical anisotropy of liquid crystals. The LCD device exhibits excellent resolution as well as color and image quality, so that it is widely used for notebook computers or desktop monitors, and the like...

AI Technical Summary

Problems solved by technology

[0020] The photolithography process is the process of transferring the pattern formed on the mask to the substrate on which the thin film is deposited to form a desired pattern, which includes multiple processes, such as the process of applying a photosensitive solution, the exposure process and the development process, etc., ultimately lead to a decrease in productivity

[0021] In particular, since the masks designed to form patterns are expensive, the manufacturing cost of the LCD increases proportionally as the number of masks used in the process increases

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