IP Library › Granted Patent US 12676115
Granted Patent B2
US 12676115 · App. 18/586,947 · Granted Jul 7, 2026

Non-quadrangular display

Inventors: Seung-Kyu Lee (Yongin-si, KR); Kwang-Min Kim (Yongin-si, KR); Byoung Sun Kim (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G09G3/3258G02F1/13454G09G3/20G02F2201/56G09G2300/0408G09G2300/0426G09G2310/0264G09G2310/0281H10K59/131
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Quick Facts
Patent No.
US 12676115
App. No.
18/586,947
Granted
Jul 7, 2026
Kind
B2
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.

Claims (41)

1 . A non-quadrangular display, comprising:

a plurality of pixels in a non-quadrangular display area that are arranged in rows and columns, each of the pixels connected to a corresponding one of a plurality of first signal lines in a first direction and a corresponding one of a plurality of second signal lines in a second direction crossing the first direction;

a plurality of first driving circuits in a peripheral area of the display area, each of the first driving circuits connected to a corresponding one of the first signal lines that is connected to pixels of a corresponding one of the rows; and

a plurality of second driving circuits in the peripheral area of the display area, each of the second driving circuits connected to a corresponding one of the second signal lines that is connected to pixels of a corresponding one of the columns,

wherein a number of pixels connected to one of the plurality of second driving circuits is greater than a number of pixels connected to one of the plurality of first driving circuits, and

wherein one of the first driving circuits is disposed between a pair of second driving circuits, among the plurality of second driving circuits, with a first one of the pair of second driving circuits disposed immediately to a first side of the one of the first driving circuits and a second one of the pair of second driving circuits disposed immediately to a second side of the one of the first driving circuits.

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 angles at which the first driving circuits and the second driving circuits are arranged to change according to positions of the first driving circuits and the second driving circuits.

5 . 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.

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

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

8 . The display as claimed in claim 6 , wherein angles at which the first driving circuits and the second driving circuits are arranged change equally to directions normal to the curved area which corresponds to positions of each of the first driving circuits and the second driving circuits.

9 . The display as claimed in claim 1 , wherein:

the pixels include a plurality of subpixels,

the subpixels emit different colors of light, and

the 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.

10 . The display as claimed in claim 9 , 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.

11 . The display as claimed in claim 10 , wherein each of the subpixels receives an initialization voltage in synchronization with first signals transmitted through respective first signal lines corresponding to a previous pixel row.

12 . The display as claimed in claim 11 , wherein each of the subpixels 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.

13 . 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.

14 . A non-quadrangular display, comprising:

a plurality of pixels in a non-quadrangular display area that are arranged in rows and columns, each of the pixels connected to a corresponding one of a plurality of first signal lines in a first direction and a corresponding one of a plurality of second signal lines in a second direction crossing the first direction;

a plurality of first driving circuits in a peripheral area of the display area, each of the first driving circuits connected to a corresponding one of the first signal lines that is connected to pixels of a corresponding one of the rows; and

a plurality of second driving circuits in the peripheral area of the display area, each of the second driving circuits connected to a corresponding one of the second signal lines that is connected to pixels of a corresponding one of the columns,

wherein a number of pixels connected to one of the plurality of second driving circuits is greater than a number of pixels connected to one of the plurality of first driving circuits,

wherein the display area includes a curved area, and the pixels are arranged in a matrix form in the curved area,

wherein the curved area includes a pixel area in which pixel row steps and pixel column steps are arranged, and

wherein at one of the pixel row 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.

15 . A non-quadrangular display, comprising:

a plurality of pixels in a non-quadrangular display area that are arranged in rows and columns, each of the pixels connected to a corresponding one of a plurality of first signal lines in a first direction and a corresponding one of a plurality of second signal lines in a second direction crossing the first direction, wherein the display area includes a curved area in which the rows and the columns includes pixel row steps and pixel column steps;

a plurality of first driving circuits disposed in a peripheral area of the display area corresponding to the curved area, each of the first driving circuits connected to a corresponding one of the first signal lines that is connected to pixels of a corresponding one of the rows; and

a plurality of second driving circuits in the peripheral area of the display area corresponding to the curved area, each of the second driving circuits connected to a corresponding one of the second signal lines that is connected to pixels of a corresponding one of the columns,

wherein, at each pixel row step, a first homogenous group of the first driving circuits is arranged, and at each pixel column step, a second homogeneous group of the second driving circuits is arranged,

wherein, in a first area of the curved area where a number of the first driving circuits is greater than a number of the second driving circuits, a number of pixels connected to one of the plurality of first driving circuits is greater than a number of pixels connected to one of the plurality of second driving circuits, and

wherein at one of the pixel row 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.

16 . The display as claimed in claim 15 , wherein in a second area where a number of second driving circuits is greater than a number of first driving circuits in the curved area, a number of pixels connected to one of the plurality of second driving circuits is greater than a number of pixels connected to one of the plurality of first driving circuits.

17 . The display as claimed in claim 16 , wherein angles at which the first driving circuits and the second driving circuits are arranged in the first area is different from angles at which the first driving circuits and the second driving circuits are arranged in the second area.

18 . The display as claimed in claim 15 , wherein one of the first driving circuits is disposed between second driving circuits.