IP Library Granted Patent US 6,873,378
Granted Patent B2
US 6,873,378 · App. 10/267,613 · Granted Mar 29, 2005

Liquid crystal display panel

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Quick Facts
Patent No.
US 6,873,378
App. No.
10/267,613
Granted
Mar 29, 2005
Kind
B2
Abstract

A liquid crystal display panel of the active matrix drive type is disclosed. Each pixel is provided with an storage capacitor, wherein capacitors for stabilizing the voltage are added to the common storage capacitor bus line that applies a predetermined potential to the storage capacitor bus lines provided for each of the rows to absorb noise that mixes into the storage capacitor bus lines through parasitic capacitances, thereby to decrease fluctuation in the voltage of the storage capacitor bus lines and to prevent the occurrence of display unevenness and crosstalk. Capacitors Ccs for stabilizing the voltage are added to a common storage capacitor bus line (vertical Cs line) 5 that applies a predetermined potential (storage capacitor bus line voltage Vcs) to the storage capacitor bus lines (horizontal Cs lines) 4 provided for each of the rows to form a common side of the storage capacitors Cs formed in each of the pixels. The capacitors Ces are formed by utilizing the common storage capacitor bus line (vertical Cs line) 5 . The capacitors Ccs may be formed in the MOS structure.

Claims (12)

1. A liquid crystal display panel comprising:

pixel regions arranged like a matrix on a substrate;

TFTs formed in the pixel regions;

storage capacitors formed in the pixel regions and having first ends connected to the TFTs;

storage capacitor bus lines connected to second ends of the plurality of the storage capacitors;

a common storage capacitor bus line connected to the storage capacitor bus lines for applying a first predetermined potential to the plurality of the storage capacitor bus lines; and

auxiliary capacitors connected to the common storage capacitor bus line for stabilizing a voltage over the common storage capacitor bus line.

2. A liquid crystal display panel according to claim 1 , wherein the auxiliary capacitors are formed by utilizing the common storage capacitor bus line.

3. A liquid crystal display panel according to claim 1 , wherein the storage capacitors and the auxiliary capacitors are formed in an MOS structure.

4. A liquid crystal display panel according to claim 3 , wherein the storage capacitors are formed in an n-MOS structure, and the auxiliary capacitors are formed in a p-MOS structure.

5. A liquid crystal display panel according to claim 3 , wherein the storage capacitors are formed in a p-MOS structure, and the auxiliary capacitors are formed in an n-MOS structure.

6. A liquid crystal display panel according to claim 1 , wherein the auxiliary capacitors include first ends connected to the common storage capacitor bus line and second ends connected to a second predetermine potential.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 14, 2005
From: FUJITSU LIMITED
To: SHARP KABUSHIKI KAISHA
Reel/Frame 016345/0210 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2005
From: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
To: FUJITSU LIMITED
Reel/Frame 016345/0310 →