IP Library Granted Patent US 8,922,469
Granted Patent B2
US 8,922,469 · App. 12/578,692 · Granted Dec 30, 2014

Display panel with alternating sub-pixel electrodes

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Quick Facts
Patent No.
US 8,922,469
App. No.
12/578,692
Granted
Dec 30, 2014
Kind
B2
Abstract

A display panel includes a first sub-pixel electrode and a second sub-pixel electrode alternating with each other to form a horizontal electric field, a first data line transmitting a first data voltage to the first sub-pixel electrode, and a second data line transmitting a second data voltage to the second sub-pixel electrode, wherein the second sub-pixel electrode is formed to overlap the first and second data lines.

Claims (27)

1. A display panel comprising:

a first sub-pixel electrode and a second sub-pixel electrode disposed directly on a same surface of a same layer that alternate with each other on said same surface to form a horizontal electric field;

a first data line transmitting a first data voltage to the first sub-pixel electrode; and

a second data line transmitting a second data voltage to the second sub-pixel electrode, wherein the second sub-pixel electrode overlaps the first and second data lines,

wherein the second sub-pixel electrode includes a plurality of second stripes that extend in parallel to and alternate with a plurality of first stripes of the first sub-pixel electrode, and

second connecting portions connecting the second stripes and partially overlapping the first and second data lines,

wherein said plurality of second stripes extend diagonal in a straight line to the second connecting portions, wherein each of the plurality of second stripes includes a first end connected to the second connecting portions, and an unconnected second end,

wherein an absolute value of the first data voltage is the same as that of the second data voltage, the first data voltage has a first polarity, and the second data voltage has a second polarity different from the first polarity, and

wherein in response to a change in the polarities of the first and second data voltages applied to the first and second data lines, the absolute value of a voltage variation of the second sub-pixel electrode based on a first parasitic capacitor between the first data line and the second sub-pixel electrode is the same with that of a voltage variation of the second sub-pixel electrode based on a second parasitic capacitor between the second data line and the second sub-pixel electrode.

2. The display panel of claim 1 , wherein the first sub-pixel electrode is horizontally spaced apart from the first and second data lines.

3. The display panel of claim 1 , wherein

an overlap area between the second sub-pixel electrode and the first data line is the same as

that between the second sub-pixel electrode and the second data line.

4. The display panel of claim 1 , wherein a capacitance of the first parasitic capacitor is the same as that of the second parasitic capacitor.

5. The display panel of claim 1 , further comprising a liquid crystal capacitor to which the first and second data voltages are applied.

6. The display panel of claim 1 , wherein the plurality of first stripes of the first sub-pixel electrode extend in parallel with one another in a predetermined direction, and the first sub-pixel electrode includes first connecting portions connecting the first stripes.

7. The display panel of claim 1 , wherein the second connecting portions of the second pixel electrode overlap the first data line and the second data line for substantially an entire length of the second pixel electrode.

8. A display panel comprising:

a first sub-pixel electrode and a second sub-pixel electrode disposed directly on a same surface of a same layer that alternate with each other on said same surface to form a horizontal electric field;

a first data line transmitting a first data voltage to the first sub-pixel electrode;

a second data line transmitting a second data voltage to the second sub-pixel electrode, wherein the second sub-pixel electrode overlaps the first and second data lines; and

a first switching device connecting the first sub-pixel electrode and the first data line and a second switching device connecting the second sub-pixel electrode and the second data line,

wherein the second sub-pixel electrode includes a plurality of second stripes that extend in parallel to and alternate with a plurality of first stripes of the first sub-pixel electrode, and second connecting portions connecting the second stripes and partially overlapping the first and second data lines,

wherein said plurality of second stripes extend diagonal in a straight line to the second connecting portions, wherein each of the plurality of second stripes includes a first end connected to the second connecting portions, and an unconnected second end,

wherein an absolute value of the first data voltage is the same as that of the second data voltage, the first data voltage has a first polarity, and the second data voltage has a second polarity different from the first polarity, and

wherein when the first and second switching devices are turned off and the polarities of the first and second data voltages are changed, there is no voltage variation between the first and second sub-pixel electrodes.

9. The display panel of claim 8 , wherein an overlap area of the second sub-pixel electrode and the first data line is substantially the same as an overlap area of the second sub-pixel electrode and the second data line.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029045/0860 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 14, 2009
From: JUNG, KWANG-CHUL; CHAI, CHONG-CHUL; JUNG, MEE-HYE
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 023368/0851 →