Liquid crystal display device and manufacturing method thereof
AssigneeLG Display Co., Ltd.
InventorSeung Ryull Park
Life of this patent
Estimating the term…
Abstract
Provided is an LCD having a liquid crystal panel including an active region serving as a display region and an outer region serving as a non-display region. The LCD includes a first substrate including an array unit and a color filter formed in the active region, an ESD (electrostatic discharge) circuit formed in the outer region, a pattern spacer formed on the ESD, a second substrate facing the first substrate, and a sealant for attaching the first and second substrates together.
Claims22
An LCD (liquid crystal display device) having a liquid crystal panel including an active region serving as a display region and an outer region serving as a non-display region, the LCD comprising:
- a gate line formed in one direction on a first substrate;
- a gate electrode formed on the first substrate;
- a gate pad formed at the outer region;
- a gate insulating layer formed on the gate line;
- a semiconductor layer formed on the gate insulating layer at a position corresponding to a TFT (thin film transistor);
- a data line intersected by the gate line to define a pixel region;
- source and drain electrodes protruded from the semiconductor layer;
- a black matrix formed on the TFT, the gate line and the data line;
- a color filter formed in the pixel region;
- an overcoat layer formed on the black matrix and the color filter;
- a pixel electrode formed on the overcoat layer to be connected to the drain electrode;
- a transparent common electrode formed to alternate with the pixel electrode;
- an ESD (electrostatic discharge) circuit formed in the outer region;
- a pattern spacer formed on the ESD, the TFT and the gate pad;
- a second substrate facing the first substrate;
- and
- a sealant for attaching the first and second substrates together.
A method for manufacturing an LCD (liquid crystal display device) having a liquid crystal panel including an active region serving as a display region and an outer region serving as a non-display region, the method comprising:
- forming in the active region on a first substrate a gate line, a gate pad, and a data line intersecting the gate line to define a pixel region and forming a TFT (thin film transistor) at an intersection between the gate line and the data line, the TFT including a gate electrode and an active layer and source/drain electrodes;
- forming an ESD (electrostatic discharge) circuit in an outer region of the first substrate;
- forming a black matrix on the TFT, the gate line, the data line and the outer region;
- forming an R/G/B color filter in the pixel region;
- forming an overcoat layer on the color filter;
- forming a pixel electrode and a transparent common electrode on the overcoat layer;
- forming a pattern spacer on the ESD circuit and the gate pad;
- attaching the first substrate and a second substrate facing the first substrate together using a sealant;
- and
- forming a liquid crystal layer between the first and second substrates.
Dependencies are inferred from the claim text.