IP Library Granted Patent US 7,955,154
Granted Patent B2
US 7,955,154 · App. 11/474,363 · Granted Jun 7, 2011

Flat panel display and method for manufacturing the same

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Quick Facts
Patent No.
US 7,955,154
App. No.
11/474,363
Granted
Jun 7, 2011
Kind
B2
Abstract

A flat panel display includes a substrate, an array on the substrate, and a glass film formed by depositing glass powder over the substrate, including the array, melting the deposited glass powder over the array and hardening the deposited glass powder over the array.

Claims (27)

1. A method for manufacturing a flat panel display comprising:

preparing a lower glass substrate;

forming an array having metal lines crossing each other on the lower glass substrate;

depositing glass powder over the lower glass substrate including the array; and

melting the glass powder by heating the lower glass substrate, and hardening the molten glass powder at room temperature, to form a glass film made of the glass powder,

wherein the glass film is used as an upper glass substrate and

wherein the glass powder consists of ZnO, SiO 2 , and BaO particles, and a binder and wherein the particles have a size ranging from 1 μm to 10 μm.

2. The method as set forth in claim 1 , wherein the deposition of the glass powder is performed by use of a dispenser.

3. The method as set forth in claim 1 , wherein the lower glass substrate is heated to a temperature ranging from about 300 to 500 degrees Celsius for about 5 to 30 minutes.

4. A method for manufacturing a flat panel display, comprising:

forming a plurality of gate lines on a lower glass substrate in a direction, the gate lines having a plurality of gate electrodes;

forming a gate insulation film over the lower glass substrate including the gate lines;

forming a semiconductor layer on the gate insulation film at positions corresponding to the gate electrodes therebelow;

forming a plurality of data lines perpendicular to the gate lines to define pixel regions, and forming a plurality of source electrodes protruded from the data lines and a plurality of drain electrodes spaced apart from the source electrodes;

forming an interlayer insulation film on the gate insulation film, including the data lines;

forming contact holes by selectively removing the gate insulation film, to expose portions of the drain electrodes;

filling up the contact holes and forming a plurality of anodes on the pixel regions;

forming a plurality of partitions on the interlayer insulation film at regions except for the pixel regions;

forming a plurality of organic matter layers between the partitions to emit light;

forming a cathode over the lower glass substrate, including the partitions and the organic matter layers;

forming a protective film on the cathode;

depositing glass powder over the protective film, entirely; and

sintering the glass powder to form a glass film,

wherein the glass film is used as an upper glass substrate and

wherein the glass powder consists of ZnO, SiO 2 , and BaO particles, and a binder and wherein the particles have a size ranging from 1 μm to 10 μm.

5. The method as set forth in claim 4 , wherein the deposition of the glass powder is performed by a dispenser.

6. The method as set forth in claim 4 , wherein the sintering of the glass powder is performed by heating the lower glass substrate at a temperature ranging from about 300 to 500 degrees Celsius for about 5 to 30 minutes to melt the glass powder, and hardening the molten glass powder.

Assignments (2)
CHANGE OF NAME Recorded Oct 27, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021772/0701 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2006
From: OH, JAE Y.; KIM, SOO P.
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 018066/0560 →