# US 2022/0036797 A1 · Display device

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- Number: US 2022/0036797 A1
- Document ID: US20220036797A1
- Status: Published application
- Kind: A1
- Application number: 17/182,825
- Filed: 2021-02-23
- Published: 2022-02-03
- Earliest claimed: 2020-07-31
- Assignees: Samsung Display Co., Ltd.
- Applicants: Samsung Display Co., Ltd.
- Inventors: Se Hyuk PARK; Hong Soo KIM; Jin Young ROH; Bong Hyun YOU; Hyo Jin LEE; Jae Keun LIM
- Web page: https://patentgrep.com/patent/US20220036797A1

## CPC

- G09G 3/3266: Details of drivers for scan electrodes
- G09G 3/2022: {using sub-frames}
- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
- G09G 2310/0202: Addressing of scan or signal lines
- G09G 2310/0267: Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
- G09G 2310/0286: Details of a shift registers arranged for use in a driving circuit
- G09G 2310/08: Details of timing specific for flat panels, other than clock recovery
- G09G 2320/0247: Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
- G09G 2340/0435: Change or adaptation of the frame rate of the video stream
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A display device includes first dots connected to first scan lines, second dots connected to second scan lines and alternately disposed with the first dots in a first direction and a second direction different from the first direction, a scan driver including first stages respectively connected to the first scan lines and second stages respectively connected to the second scan lines, and a data driver connected to the first dots and the second dots through data lines. The first stages are connected to first clock lines, the second stages are connected to second clock lines, first stages except a first start stage are respectively connected to corresponding first scan lines of corresponding previous first stages, and second stages except a second start stage are respectively connected to corresponding second scan lines of corresponding previous second stages.

## Claims

### Claim 1

A display device comprising:
first dots connected to first scan lines;
second dots connected to second scan lines and alternately disposed with the first dots in a first direction and a second direction different from the first direction;
a scan driver including a plurality of first stages respectively connected to the first scan lines and a plurality of second stages respectively connected to the second scan lines; and
a data driver connected to the first dots and the second dots through data lines,
wherein the plurality of first stages is connected to first clock lines,
wherein the plurality of second stages is connected to second clock lines different from the first clock lines,
wherein first stages of the plurality of the first stages except a first start stage of the plurality of first stages are respectively connected to corresponding first scan lines of corresponding previous first stages among the plurality of first scan lines of the plurality of first stages, and
wherein second stages of the plurality of the second stages except a second start stage of the plurality of second stages are respectively connected to corresponding second scan lines of corresponding previous second stages among the plurality of second scan lines of the plurality of second stages.

### Claim 2 (depends on 1)

The display device of claim 1, wherein each of the first dots and the second dots includes a pixel of a first color, a pixel of a second color, and a pixel of a third color arranged in the first direction, and
wherein the first color, the second color, and the third color are different from each other.

### Claim 3 (depends on 2)

The display device of claim 2, wherein each of the data lines is connected to pixels of a single color.

### Claim 4 (depends on 1)

The display device of claim 1, wherein one first dot of the first dots includes a pixel of a first color, a pixel of a second color, a pixel of a third color, and a pixel of the second color arranged in the first direction,
wherein one second dot of the second dots disposed in the second direction from the one first dot of the first dots includes a pixel of the third color, a pixel of the second color, a pixel of the first color, and a pixel of the second color arranged in the first direction, and
wherein the first color, the second color, and the third color are different from each other.

### Claim 5 (depends on 4)

The display device of claim 4, wherein one data line of the data lines is alternately connected with the pixels of the first color and the third color, and
wherein another data line of the data lines is connected to the pixels of the second color.

### Claim 6 (depends on 1)

The display device of claim 1, wherein the first start stage among the plurality of first stages and the second start stage among the plurality of second stages are connected to a same scan start line.

### Claim 7 (depends on 6)

The display device of claim 6, wherein during each first frame period, the scan driver alternately applies scan signals of a turn-on level to the first scan lines and the second scan lines.

### Claim 8 (depends on 7)

The display device of claim 7, wherein during a first sub-frame period among each second frame period, the scan driver applies the scan signals of the turn-on level to the first scan lines, and maintains the scan signals of a turn-off level in the second scan lines, and
wherein during a second sub-frame period among the each second frame period, the scan driver applies the scan signals of the turn-on level to the second scan lines, and maintains the scan signals of the turn-off level in the first scan lines.

### Claim 9 (depends on 8)

The display device of claim 8, wherein the second frame period is longer than the first frame period.

### Claim 10 (depends on 8)

The display device of claim 8, wherein during the first frame period, first clock signals of a turn-on level are applied to the first clock lines, and second clock signals of the turn-on level are applied to the second clock lines, and
wherein the first clock signals and the second clock signals have different phases.

### Claim 11 (depends on 10)

The display device of claim 10, wherein during the first sub-frame period, the first clock signals of the turn-on level are applied to the first clock lines, and the second clock signals of the turn-off level are maintained in the second clock lines, and
wherein during the second sub-frame period, the second clock signals of the turn-on level are applied to the second clock lines, and the first clock signals of the turn-off level are maintained in the first clock lines.

### Claim 12 (depends on 11)

The display device of claim 11, wherein in the first frame period and the first sub-frame period, cycles in which the first clock signals of the turn-on level are applied to the first clock lines are identical to each other.

### Claim 13 (depends on 12)

The display device of claim 12, wherein in the first frame period and the second sub-frame period, cycles in which the second clock signals of the turn-on level are applied to the second clock lines are identical to each other.

### Claim 14 (depends on 13)

The display device of claim 13, wherein in the first frame period and the first sub-frame period, cycles in which first scan signals of the turn-on level are applied to the first scan lines are identical to each other.

### Claim 15 (depends on 14)

The display device of claim 14, wherein in the first frame period and the second sub-frame period, cycles in which second scan signals of the turn-on level are applied to the second scan lines are identical to each other.

### Claim 16 (depends on 11)

The display device of claim 11, wherein a cycle in which the first clock signals of the turn-on level are applied to the first clock lines in the first sub-frame period is shorter than a cycle in which the first clock signals of the turn-on level are applied in the first frame period.

### Claim 17 (depends on 16)

The display device of claim 16, wherein a cycle in which the second clock signals of the turn-on level are applied to the second clock lines in the second sub-frame period is shorter than a cycle in which the second clock signals of the turn-on level are applied in the first frame period.

### Claim 18 (depends on 17)

The display device of claim 17, wherein a cycle in which first scan signals of the turn-on level are applied to the first scan lines in the first sub-frame period is shorter than a cycle in which the first scan signals of the turn-on level are applied in the first frame period.

### Claim 19 (depends on 18)

The display device of claim 18, wherein a cycle in which second scan signals of the turn-on level are applied to the second scan lines in the second sub-frame period is shorter than a cycle in which the second scan signals of the turn-on level are applied in the first frame period.

### Claim 20 (depends on 17)

The display device of claim 17, wherein during at least some of the first sub-frame period and the second sub-frame period, the data driver is powered off.