Non-quadrangular display

Patent metadata

Field	Value
Publication number	US-11915652-B2
Application number	US-202117396932-A
Country	US
Kind code	B2
Filing date	Aug 9, 2021
Priority date	Feb 12, 2015
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

A display includes a plurality of pixels in a non-quadrangular display area and a plurality of first driving circuits and a plurality of second driving circuits in a peripheral area of the display area. Each of the pixels is connected to a first signal line in a first direction and a second signal line in a second direction crossing the first direction. Each of the first driving circuits outputs a first signal to the first signal line of a corresponding one of the pixels. Each of the second driving circuits outputs a second signal to the second signal line of a corresponding one of the pixels. The number of second driving circuits between neighboring first driving circuits is different depending on a position in the peripheral area.

First claim

What is claimed is:

1. A non-quadrangular display, comprising:
a plurality of pixels in a non-quadrangular display area, each of the pixels connected to a first signal line in a first direction and a second signal line in a second direction crossing the first direction, wherein the display area includes a curved area, the pixels are arranged in the curved area, and the curved area includes a pixel area in which pixel row steps and pixel column steps are arranged;
a plurality of first driving circuits in a peripheral area of the display area, wherein each of the first driving circuits is connected to the first signal line of a corresponding one of the pixels, and at each pixel row step a first homogenous group of the first driving circuits is arranged; and
a plurality of second driving circuits in the peripheral area of the display area, wherein each of the second driving circuits is connected to the second signal line of a corresponding one of the pixels, and at each pixel column step a second homogeneous group of the second driving circuits is arranged,
wherein a number of the first driving circuits is greater than a number of the second driving circuits, and
wherein at one of the pixel ro-w steps, the first driving circuits connected to the one pixel row step are sandwiched between adjacent second driving circuits of the column steps adjacent to the one pixel row step.

2. The display as claimed in claim 1 , wherein the first driving circuits and the second driving circuits are disposed on a same curved line in the peripheral area.

3. The display as claimed in claim 1 , wherein the plurality of first driving circuits supply a first signal to respective pixels in the row direction through the first signal lines, and the plurality of second driving circuits supply a second signal to respective pixels in the column direction through the second signal lines.

4. The display as claimed in claim 1 , wherein the pixels are arranged in a matrix form in the curved area.

5. The display as claimed in claim 4 , wherein a sum of widths of display areas of the first driving circuits and the second driving circuits alternately disposed and adjacently provided in a tangential direction is less than half the width of the pixel.

6. The display as claimed in claim 1 , wherein the first driving circuits and the second driving circuits are adjacent to a circumference of the curved area.

7. The display as claimed in claim 1 , wherein angles at which the first driving circuits and the second driving circuits are arranged change according to positions of the first driving circuits and the second driving circuits.

8. The display as claimed in claim 7 , Wherein the angles change equally to directions normal to the curved area which corresponds to the positions of each of the first driving circuits and the second driving circuits.

9. The display as claimed in claim 1 , wherein an area of the first driving circuit for at least one pixel is different from an area of the second driving circuit for at least one pixel.

10. The display as claimed in claim 1 , wherein:
the pixels include a plurality of subpixels,
subpixels emit different colors of light, and
subpixels are to be controlled by second signals transmitted through the second signal lines in synchronization with first signals transmitted through the first signal lines.

11. The display as claimed in claim 10 , wherein the subpixels include:
a plurality of switching transistors, each of the switching transistors including a first electrode connected to a respective one of the second signal lines and the first signal lines as gate electrodes; and
a plurality of driving transistors, each of the driving transistors including a gate electrode connected to a second electrode of a respective one of the switching transistors, a first electrode to receive a power voltage, and a second electrode connected to an organic light emitting diode.

12. The display as claimed in claim 11 , wherein each of the suhpixels receives an initialization voltage in synchronization with first signals transmitted through respective first signal lines corresponding to a previous pixel row.

13. The display as claimed in claim 12 , wherein each of the suhpixels includes a compensation transistor connected between the gate electrode and the second electrodes of the driving transistors, the gate electrode included as part of a corresponding first signal line.

14. The display as claimed in claim 1 , wherein the first signal lines and the second signal lines of the pixels do not cross each other in the peripheral area.

15. A non-quadrangular display, comprising:
a plurality of pixels in a non-quadrangular display area, each of the pixels connected to a first signal line in a first direction and a second signal line in a second direction crossing the first direction, wherein the display area includes a curved area, the pixels are arranged in the curved area in which pixel row steps and pixel column steps are arranged;
a plurality of first driving circuits in a peripheral area of the display area, wherein each of the first driving circuits is connected to the first signal line of a corresponding one of the pixels, and at each pixel row step a first homogenous group of the first driving circuits is arranged; and
a plurality of second driving circuits in the peripheral area of the display area, wherein each of the second driving circuits is connected to the second signal line of a corresponding one of the pixels, and at each pixel column step a second homogeneous group of the second driving circuits is arranged,
wherein a number of the first driving circuits is greater than a number of the second driving circuits, and
wherein at one of the pixel row steps, the first driving circuits on to the one pixel row step sandwiched between adjacent second driving circuits of the column stens adiacent tea the one pixel row step.

16. The display as claimed in claim 15 , wherein the first driving circuits and the second driving circuits are disposed on a same curved fine in the peripheral area.

17. The display as claimed in claim 15 , wherein the plurality of first driving circuits supply a first signal to respective pixels in the row direction through the first signal lines, and the plurality of second driving circuits supply a second signal to respective pixels in the colutmi direction through the second signal lines.

18. The display as claimed in claim 15 , wherein at least one of the first driving circuits is provided in a direction substantially normal to which the pixels have steps in the row direction.

19. A non-quadrangular display, comprising:
a plurality of pixels in a non-quadrangular display area, each of the pixels connected to a first signal line in a first direction and a second signal line in a second direction crossing the first direction, Wherein the display area includes a curved area, the pixels are arranged in the curved area, and the curved area includes a pixel area in which pixel row steps and pixel column steps are arranged;
a plurality of first driving circuits in a peripheral area of the display area, wherein each of the first driving circuits is connected to the first signal line of a corresponding one of the pixels, and at each pixel row step a first homogenous group of the first driving circuits is arranged; and
a plurality of second driving circuits in the peripheral area of the display area, wherein each of the second driving circuits is connected to the second signal line of a corresponding one of the pixels, and at each

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Seung-Kyu
• Kim Kwang-Min
• Kim Byoung Sun

Classifications

• G09G3/3258 Primary

  with pixel circuitry controlling the voltage across the light-emitting element · CPC title

• G02F1/13454 Primary

  Drivers integrated on the active matrix substrate (G02F1/136277 takes precedence) · CPC title

• G09G3/20 Primary

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title

• G02F2201/56

  Substrates having a particular shape, e.g. non-rectangular · CPC title

• G09G2300/0408

  Integration of the drivers onto the display substrate · CPC title