IP Library Granted Patent US 8,421,936
Granted Patent B2
US 8,421,936 · App. 12/822,981 · Granted Apr 16, 2013

Display panel, display apparatus having the same, and method of manufacturing the same

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Quick Facts
Patent No.
US 8,421,936
App. No.
12/822,981
Granted
Apr 16, 2013
Kind
B2
Abstract

A display panel including a first capacitor and a second capacitor is disclosed. The first and second capacitors boost a second driving voltage from a driving chip and apply the boosted second driving voltage to the driving chip. The driving chip receives the boosted second driving voltage and outputs a first driving voltage to drive the display panel. Thus, the display panel does not require any additional capacitor for boosting the second driving voltage, thereby reducing a thickness and a manufacturing cost of the display panel.

Claims (21)

1. A method of manufacturing a display panel, comprising:

forming a first metal layer on a substrate;

patterning the first metal layer to form a gate electrode in a first area on which an image is displayed and a first electrode of a first capacitor in a second area surrounding the first area;

forming an insulating layer on the substrate on which the gate electrode and the first electrode are formed; and

forming a second electrode of the first capacitor on the insulating layer corresponding to the second area,

forming a second capacitor having a different capacitance from the first capacitor in a third area adjacent to the second area.

2. The method of claim 1 , further comprising:

forming a second metal layer on the insulating layer; and

patterning the second metal layer to form a source electrode and a drain electrode in the first area and a second electrode of the first capacitor in the second area.

3. The method of claim 1 , further comprising:

forming a second metal layer on the insulating layer;

patterning the second metal layer to form a source electrode and a drain electrode in the first area;

forming a third metal layer on the insulating layer on which the source and drain electrodes are formed; and

patterning the third metal layer to form a pixel electrode in the first area and a second electrode of the first capacitor in the second area.

4. A method of manufacturing a display panel, comprising:

forming a first metal layer on a substrate;

patterning the first metal layer to form a source electrode and a drain electrode in a first area on which an image is displayed and a first electrode of a first capacitor in a second area surrounding the first area;

forming an insulating layer on the substrate on which the source electrode, the drain electrode, and the first electrode are formed;

forming a second metal layer on the insulating layer; and

patterning the second metal layer to form a pixel electrode in the first area and a second electrode of the first capacitor in the second area,

forming a second capacitor having a different capacitance from the first capacitor in a third area adjacent to the second area.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 19, 2012
From: SAMSUNG ELECTRONICS, CO., LTD
To: SAMSUNG DISPLAY CO., LTD
Reel/Frame 028990/0824 →