US 8,947,472 B2 · Pixel array

Abstract

A pixel array includes a first color pixel unit, a second color pixel unit and a third pixel unit, and the first, second and third pixel units respectively include a scan line, a data line, an active device electrically connected to the scan line and the data line and a first pixel electrode electrically connected to the active device. The first pixel electrode has at least one first slit, and a first acute angle is formed between an extending direction of the first slit and an extending direction of the scan line. Any two of the first acute angle of the first color pixel unit, the first acute angle of the second color pixel unit, and the first acute angle of the third color pixel unit are different.

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Claims28

Dependent claims

A pixel array, comprising:

a first color pixel unit, a second color pixel unit and a third color pixel unit, wherein the first color pixel unit, the second color pixel unit and the third color pixel unit respectively comprise:
a scan line and a data line;
at least one active device, electrically connected to the scan line and the data line;
and
a first pixel electrode, electrically connected to the active device, wherein the first pixel electrode has at least one first slit, and a first acute angle is between an extending direction of the first slit and an extending direction of the scan line,
wherein any two of the first acute angle of the first color pixel unit, the first acute angle of the second color pixel unit, and the first acute angle of the third color pixel unit are different.

3 more elements

A pixel array, comprising:

a first color pixel unit, a second color pixel unit and a third color pixel unit, wherein the first color pixel unit, the second color pixel unit and the third color pixel unit respectively comprise:
a scan line and a data line;
at least one active device, electrically connected to the scan line and the data line;
a first pixel electrode, electrically connected to the active device;
and
a second pixel electrode, electrically connected to the active device,
wherein any two of an area ratio of the first pixel electrode and the second pixel electrode of the first color pixel unit, an area ratio of the first pixel electrode and the second pixel electrode of the second color pixel unit, and an area ratio of the first pixel electrode and the second pixel electrode of the third color pixel unit are different, and a relationship of the area ratio (Aa-1/Aa-2) of the first pixel electrode and the second pixel electrode of the first color pixel unit, the area ratio (Ab-1/Ab-2) of the first pixel electrode and the second pixel electrode of the second color pixel unit, and the area ratio (Ac-1/Ac-2) of the first pixel electrode and the second pixel electrode of the third color pixel unit is as follows:
−25%≦[(Ac-1/Ac-2)−(Aa-1/Aa-2)]/(Aa-1/Aa-2)<0,
−25%≦[(Ac-1/Ac-2)−(Ab-1/Ab-2)]/(Ab-1/Ab-2)<0.

6 more elements

A pixel array, comprising:

a first color pixel unit, a second color pixel unit and a third color pixel unit, wherein the first color pixel unit, the second color pixel unit and the third color pixel unit respectively comprise:
a scan line and a data line;
at least one active device, electrically connected to the scan line and the data line;
a first pixel electrode, electrically connected to the active device;
and
a second pixel electrode, electrically connected to the active device,
wherein any two of a voltage ratio of the second pixel electrode and the first pixel electrode of the first color pixel unit, a voltage ratio of the second pixel electrode and the first pixel electrode of the second color pixel unit, and a voltage ratio of the second pixel electrode and the first pixel electrode of the third color pixel unit are different, and a relationship of the voltage ratio (Va-2/Va-1) of the second pixel electrode and the first pixel electrode of the first color pixel unit, the voltage ratio (Vb-2/Vb-1) of the second pixel electrode and the first pixel electrode of the second color pixel unit, and the voltage ratio (Vc-2/Vc-1) of the second pixel electrode and the first pixel electrode of the third color pixel unit is as follows:
0<[(Vc-2/Vc-1)−(Va-2/Va-1)]/(Va-2/Va-1)≦10%,
0<[(Vc-2/Vc-1)−(Vb-2/Vb-1)]/(Vb-2/Vb-1)≦10%.

6 more elements

A pixel array, comprising:

a first color pixel unit, a second color pixel unit and a third color pixel unit, wherein the first color pixel unit, the second color pixel unit and the third color pixel unit respectively comprise:
a first scan line, a second scan line and a data line;
at least one active device, electrically connected to the first scan line and the data line;
a first pixel electrode, electrically connected to the active device;
a second pixel electrode, electrically connected to the active device;
a sharing switch device, electrically connected to the second pixel electrode and the second scan line;
and
a sharing capacitor, electrically connected to the sharing switch device,
wherein capacitances of the sharing capacitors of the first color pixel unit, the second color pixel unit and the third color pixel unit are not totally the same.

6 more elements

Dependencies are inferred from the claim text.

Description13,120 words

Summary895 words

#This application claims the priority benefits of Taiwan application serial no. 100141251, filed on Nov. 11, 2011, and Taiwan application serial no. 100146897, filed on Dec. 16, 2011. The entirety of each of the above-mentioned patent applications is hereby incorporated by reference herein and made a part of specification.

#1. Field of the Invention

#The invention relates to a pixel array. Particularly, the invention relates to a pixel array of a liquid crystal display (LCD) panel.

Brief description of the drawings24 figures

#The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

#FIG. 1A is a cross-sectional view of a liquid crystal display (LCD) panel according to an embodiment of the invention.

#FIG. 1B is a top view of a pixel array of the LCD panel of FIG. 1A.

Detailed description11,698 words

#FIG. 1A is a cross-sectional view of a liquid crystal display (LCD) panel according to an embodiment of the invention. FIG. 1B is a top view of a pixel array of the LCD panel of FIG. 1A. Referring to FIG. 1A and FIG. 1B, the LCD panel includes a first substrate 100, a pixel array 102, a second substrate 200, a color filter array 202, a counter electrode 204 and a display medium 300.

#The first substrate 100 and the second substrate 200 are mainly used to carry devices or film layers, and a material thereof is, for example, glass, quartz, organic polymer, or an opaque/reflective material (for example, a conductive material, metal, wafer, ceramic, or other suitable materials), or other suitable materials. The pixel array 102 is disposed on the first substrate 100, and includes a first pixel unit Pa, a second pixel unit Pb and a third pixel unit Pc. The color filter array 202 is disposed on the second substrate 200, and includes a first color filter pattern, a second color filter pattern and a third color filter pattern. Although the color filter array 202 is disposed on the second substrate 200, the invention is not limited thereto. In other words, in other embodiments, the color filter array 202 can also be disposed on the first substrate 100. Moreover, the electrode layer 204 can be further disposed on the color filter array 202. An electric field can be generated between the electrode layer 204 and the pixel array 102 to control or drive the display medium 300. Moreover, the display medium 300 includes a liquid crystal display medium or other suitable display medium.

#As described above, the pixel array 102 and the color filter array 202 are disposed opposite to each other. For example, the first pixel unit Pa is disposed corresponding to the first color filter pattern, the second pixel unit Pb is disposed corresponding to the second color filter pattern, and the third pixel unit Pc is disposed corresponding to the third color filter pattern. The first color filter pattern, the second color filter pattern and the third color filter pattern are of different colors, for example. Therefore, the first, the second and the third pixel units Pa, Pb and Pc can also be referred to as a first, a second and a third color pixel units Pa, Pb and Pc. In the present embodiment, if the first color filter pattern, the second color filter pattern and the third color filter pattern are respectively a red, a green and a blue color filter patterns, the first, the second and the third color pixel units Pa, Pb and Pc are respectively red pixel unit Pa, green pixel unit Pb and blue pixel unit Pc. Designs of the first, the second and the third color pixel units Pa, Pb and Pc are described in following embodiments.

Facts

Application

13/482,995Filed 29 May 2012

Priority

TW 100141251 A11 Nov 2011

Published

US 2013/0120469 A116 May 2013

Granted

3 Feb 2015

Term ends

11 May 2033

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 347 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification8 codes

G09G 3/3648
Control of matrices with row and column drivers: using an active matrix
G02F 1/133707
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers: structures for producing distorted electric fields, e.g.…
G02F 1/133753
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers: with different alignment orientations or pretilt angles on…
G02F 1/1393
Based on orientation effects in which the liquid crystal remains transparent: the birefringence of the liquid crystal being electrically…

Timeline

11 Nov 2011Priority claimedTW 100141251 A
29 May 2012Application filedUS 13/482,995
1 Jun 2012Assigned to Au Optronics Corporationassignment of assignor's interest
16 May 2013PublishedUS 2013/0120469 A1
3 Feb 2015GrantedUS 8,947,472 B2
12 Oct 2026TodayWithin its term
11 May 2033Term endsEstimated, includes 347 days of adjustment

Pixel array

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Pixel array

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Abstract

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Drawings

Claims28

Description13,120 words

Drawings

Description13,120 words

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Classification8 codes