Pixel array, display panel and curved display panel

• US 10,067,395 B2
• Filed: 08/09/2016
• Issued: 09/04/2018
• Est. Priority Date: 08/10/2015
• Status: Active Grant

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Lin, Chun-Feng, Hsieh, Yao-An, Kuo, Yu-Ping, Cheng, Ching-Sheng
• Primary Examiner(s): Wilczewski, Mary
• Application Number:
  US15/232,793
• Publication Number:
  US 20170045794A1
• Time in Patent Office: 756 Days
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/134336 Matrix
• CPC Class Codes: G02F 1/134345 Subdivided pixels, e.g. for grey scale or redundancy
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/136295 Materials; Compositions; Manufacture processes
• CPC Class Codes: H01L 27/1218 with a particular composition or structure of the substrate
• CPC Class Codes: H01L 27/124 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits wiring structures per se H01L23/52
• CPC Class Codes: H01L 27/1262 with a particular formation, treatment or coating of the substrate

Abstract

A pixel array includes pixel unit sets each including a substrate having first and second pixel regions, a scan line, first and second data lines extending along a second direction, first and second active devices respectively in the first and second pixel regions, and first and second pixel electrodes respectively located in the first and second pixel regions and electrically connected to the first and second active devices, respectively. The scan line includes a main scan line and first and second branch scan lines (connected to the main scan line) extending along a first direction. The first active device is electrically connected to the first branch scan line and the first data line. The second active device is electrically connected to the second branch scan line and the second data line. At least one of the first and second data lines is overlapped with the first and second pixel electrodes.

Claims

1. A pixel array comprising a plurality of pixel unit sets, each of the pixel unit sets comprising:

a substrate having a first pixel region, a second pixel region, and a third pixel region;

a scan line comprising a main scan line, a first branch scan line, a second branch scan line, and a third branch scan line, wherein the first branch scan line, the second branch scan line, and the third branch scan line are connected to the main scan line and extended along a first direction;

a first data line, a second data line, and a third data line extending along a second direction;

a first active device located in the first pixel region and electrically connected to the first branch scan line and the first data line;

a first pixel electrode located in the first pixel region and electrically connected to the first active device;

a second active device located in the second pixel region and electrically connected to the second branch scan line and the second data line;

a second pixel electrode located in the second pixel region and electrically connected to the second active device;

a third active device located in the third pixel region and electrically connected to the third branch scan line and the third data line; and

a third pixel electrode located in the third pixel region and electrically connected to the third active device,

wherein each of the first pixel electrode, the second pixel electrode, and the third pixel electrode has a bar-shaped electrode pattern, the bar-shaped electrode pattern has at least one bent portion, and only the second data line is overlapped with the bent portions of the bar-shaped electrode pattern of the first pixel electrode, the second pixel electrode, and the third pixel electrode.

2. The pixel array of claim 1, wherein

in each of the pixel unit sets, the bar-shaped electrode pattern comprises a first bar-shaped electrode and a second bar-shaped electrode, and a first included angle is included between the first bar-shaped electrode and the second bar-shaped electrode, a second included angle is included between the first bar-shaped electrode and the second bar-shaped electrode of the bar-shaped electrode pattern in a next pixel unit set along the first direction, each of the first included angle and the second included angle is an obtuse angle, and an opening of the first included angle and an opening of the second included angle are in opposite directions.

3. The pixel array of claim 1, wherein each of the first pixel region, the second pixel region, and the third pixel region has a long side and a short side, the long side is parallel to the first direction, and the short side is parallel to the second direction.

4. A display panel having a central region, a first region, and a second region, the first region and the second region being located at two sides of the central region, the display panel comprising:

a first substrate;

a pixel array located on the first substrate, the pixel array comprising a plurality of pixel unit sets, wherein each of the pixel unit sets is as recited in claim 1,

a second substrate located opposite to the first substrate;

a color filter layer located on the first substrate or the second substrate, the color filter layer being arranged corresponding to the pixel array; and

a light shielding pattern layer located on the second substrate, the light shielding pattern layer being arranged corresponding to the color filter layer.

5. The display panel of claim 4, wherein each of the first pixel region, the second pixel region, and the third pixel region has a long side and a short side, the long side is parallel to the first direction, and the short side is parallel to the second direction.

6. The display panel of claim 5, wherein the light shielding pattern layer defines a plurality of light transmissive regions, each of the light transmissive regions corresponds to the first pixel region, the second pixel region, or the third pixel region in one of the pixel unit sets, and the light shielding pattern layer around each of the light transmissive regions is divided into:

a first light shielding portion and a second light shielding portion both extending along the second direction; and

a third light shielding portion and a fourth light shielding portion both extending along the first direction.

7. The display panel of claim 6,

in the first region of the display panel, a width of the first light shielding portion of the light shielding pattern layer being LW1, a width of the second light shielding portion of the light shielding pattern layer being LW2, LW1≠

LW2;

in the central region of the display panel, a width of the first light shielding portion of the light shielding pattern layer being CW1, a width of the second light shielding portion of the light shielding pattern layer being CW2, CW1=CW2; and

in the second region of the display panel, a width of the first light shielding portion of the light shielding pattern layer being RW1, a width of the second light shielding portion of the light shielding pattern layer being RW2, RW1≠

RW2.

8. The display panel of claim 7, wherein

LW1>

LW2, CW1=CW2, and RW1<

RW2;

or

LW1<

LW2, CW1=CW2, and RW1>

RW2.

9. The display panel of claim 8, wherein

(LW1+LW2)/2=(RW1+RW2)/2=CW1=CW2.

10. A pixel array comprising a plurality of pixel unit sets, each of the pixel unit sets comprising:

a substrate having a first pixel region, a second pixel region, and a third pixel region;

a scan line comprising a main scan line, a first branch scan line, a second branch scan line, and a third branch scan line, wherein the first branch scan line, the second branch scan line, and the third branch scan line are connected to the main scan line and extended along a first direction;

a first data line, a second data line, and a third data line extending along a second direction;

a first active device located in the first pixel region and electrically connected to the first branch scan line and the first data line;

a first pixel electrode located in the first pixel region and electrically connected to the first active device;

a second active device located in the second pixel region and electrically connected to the second branch scan line and the second data line;

a second pixel electrode located in the second pixel region and electrically connected to the second active device;

a third active device located in the third pixel region and electrically connected to the third branch scan line and the third data line; and

a third pixel electrode located in the third pixel region and electrically connected to the third active device,

wherein the second data line is overlapped with the first pixel electrode, the second pixel electrode, and the third pixel electrode, and the first data line and the third data line are not overlapped with the first pixel electrode, the second pixel electrode, and the third pixel electrode,

wherein each of the first pixel electrode, the second pixel electrode, and the third pixel electrode has a bar-shaped electrode pattern, the bar-shaped electrode pattern has at least one bent portion,

wherein the third data line in each of the pixel unit sets and the first data line in a next pixel unit set along the first direction are located between the first pixel electrode, the second pixel electrode and the third pixel electrode in the each of the pixel unit sets and the first pixel electrode, the second pixel electrode and the third pixel electrode in the next pixel unit set along the first direction and are not overlapped with each other.

11. The pixel array of claim 10, wherein

the second data line is overlapped with the at least one bent portion.

12. The pixel array of claim 11, wherein

in the each of the pixel unit sets, the bar-shaped electrode pattern comprises a first bar-shaped electrode and a second bar-shaped electrode, and a first included angle is included between the first bar-shaped electrode and the second bar-shaped electrode,

a second included angle is included between the first bar-shaped electrode and the second bar-shaped electrode of the bar-shaped electrode pattern in the next pixel unit set along the first direction, each of the first included angle and the second included angle is an obtuse angle, and an opening of the first included angle and an opening of the second included angle are in opposite directions.

13. The pixel array of claim 10, wherein each of the first pixel region, the second pixel region, and the third pixel region has a long side and a short side, the long side is parallel to the first direction, and the short side is parallel to the second direction.

14. A pixel array comprising a plurality of pixel unit sets, each of the pixel unit sets comprising:

a substrate having a first pixel region, a second pixel region, and a third pixel region;

a scan line comprising a main scan line, a first branch scan line, a second branch scan line, and a third branch scan line, wherein the first branch scan line, the second branch scan line, and the third branch scan line are connected to the main scan line and extended along a first direction;

a first data line, a second data line, and a third data line extending along a second direction;

a first active device located in the first pixel region and electrically connected to the first branch scan line and the first data line;

a first pixel electrode located in the first pixel region and electrically connected to the first active device;

a second active device located in the second pixel region and electrically connected to the second branch scan line and the second data line;

a second pixel electrode located in the second pixel region and electrically connected to the second active device;

a third active device located in the third pixel region and electrically connected to the third branch scan line and the third data line; and

a third pixel electrode located in the third pixel region and electrically connected to the third active device,

wherein only the second data line is overlapped with the first pixel electrode, the second pixel electrode, and the third pixel electrode,

wherein the third data line in each of the pixel unit sets and the first data line in a next pixel unit set along the first direction are located between the first pixel electrode, the second pixel electrode and the third pixel electrode in the each of the pixel unit sets and the first pixel electrode, the second pixel electrode and the third pixel electrode in the next pixel unit set along the first direction and are not overlapped with each other.

15. The pixel array of claim 14, wherein

each of the first pixel electrode, the second pixel electrode, the third pixel electrode has a bar-shaped electrode pattern, the bar-shaped electrode pattern has at least one bent portion, and

only the second data line is overlapped with the at least one bent portion.

16. The pixel array of claim 15, wherein

in the each of the pixel unit sets, the bar-shaped electrode pattern comprises a first bar-shaped electrode and a second bar-shaped electrode, and a first included angle is included between the first bar-shaped electrode and the second bar-shaped electrode,

a second included angle is included between the first bar-shaped electrode and the second bar-shaped electrode of the bar-shaped electrode pattern in the next pixel unit set along the first direction, each of the first included angle and the second included angle is an obtuse angle, and an opening of the first included angle and an opening of the second included angle are in opposite directions.

17. The pixel array of claim 14, wherein each of the first pixel region, the second pixel region, and the third pixel region has a long side and a short side, the long side is parallel to the first direction, and the short side is parallel to the second direction.