# US 12,217,638 B2 · Display panel, display device, and method for driving display device

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- Number: US 12,217,638 B2
- Document ID: US12217638B2
- Status: Granted
- Kind: B2
- Application number: 18/276,687
- Filed: 2021-07-02
- Published: 2024-04-18
- Granted: 2025-02-04
- Earliest claimed: 2021-07-02
- Assignees: Boe Technology Group Co., Ltd.
- Applicants: BOE Technology Group Co., Ltd.
- Inventors: Hui Zhang; Changfeng Li; Kai Hou; Liwei Liu; Hongrun Wang; Yunsik Im; Shunhang Zhang; Kuanjun Peng
- Web page: https://patentgrep.com/patent/US12217638B2

## CPC

- G09G 3/001: {using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background (slide projectors per se G03B23/00 = 42 HP)}
- G09G 3/003: {to produce spatial visual effects}
- G09G 3/3607: {for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127)}
- G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
- G09G 2310/0262: The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
- G09G 2310/0281: Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure
- G09G 2310/0283: Arrangement of drivers for different directions of scanning
- G09G 2310/0297: Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
- G09G 2330/021: Power management, e.g. power saving
- G09G 2340/00: Aspects of display data processing
- G09G 2354/00: Aspects of interface with display user
- G09G 2370/00: Aspects of data communication
- 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 panel, a display device, and a method for driving the display device are disclosed. The display panel includes a base substrate, a plurality of data lines, a plurality of scanning lines, a plurality of sub-pixels, a plurality of data selection control lines, a plurality of data input lines, and a plurality of data selection circuits. The data selection circuits include at least two multiplexers; in each data selection circuit, input terminals of different multiplexers are coupled to different data input lines, control terminals of different multiplexers are coupled to different data selection control lines, and the ith output terminals of different multiplexers are coupled to the same data line; in two adjacent data selection circuits, two multiplexers coupled to different data selection control lines are coupled to the same data input line.

## Claims

### Claim 1

A display panel, comprising:
a base substrate, comprising a display region and a peripheral region disposed outside the display region;
a plurality of data lines, located at a side of the base substrate, and extending from the display region to the peripheral region; wherein each of the plurality of data lines extends along a first direction, and the plurality of data lines are arranged along a second direction; and the first direction intersects with the second direction;
a plurality of scan lines, located at the side of the base substrate; wherein each of the plurality of scan lines extends along the second direction and the plurality of scan lines are arranged along the first direction;
a plurality of sub-pixels, respectively located at regions defined by the plurality of scan lines and the plurality of data lines; wherein at least two sub-pixels adjacent in the first direction and the second direction form a pixel island; and color of light emitted by any two adjacent sub-pixels in the second direction is identical;
a plurality of data selection control lines, arranged at the peripheral region and located at a same side of the base substrate as the plurality of data lines;
a plurality of data input lines, arranged at the peripheral region and locate at the same side of the base substrate as the plurality of data selection control lines; and
a plurality of data selection circuits, arranged at the peripheral and located at the same side of the base substrate as the plurality of data selection control lines;
wherein each data selection circuit comprises at least two selection switch groups;
wherein each selection switch group comprises: an input terminal, a plurality of control terminals, and a plurality of output terminals;
in wherein within each data selection circuit, each input terminal of different selection switch groups is coupled to a different data input line, each control terminal of different selection switch groups is coupled to a different data selection control line, and each i-th output terminal of different selection switch groups is coupled to a same data line, wherein, i is a positive integer;
wherein for each two adjacent data selection circuits, a left selection switch group within a first data selection circuit among the two adjacent data selection circuits and a right selection switch group within a second data selection circuit among the two adjacent data selection circuits are coupled to a same data input line; wherein the left selection switch group and the right selection switch group are connected with different data selection control lines;
and each of the plurality of data selection circuits is configured to: under control of signals of the plurality of data selection control lines, respectively provide a signal of a corresponding data input line to each coupled data line.

### Claim 2 (depends on 1)

The display panel according to claim 1, wherein the pixel island comprises a plurality of sub-pixel rows arranged along the first direction; each sub-pixel row comprises: h number of sub-pixels arranged along the second direction; each sub-pixel row is divided into a number of sub-pixel groups, each sub-pixel group comprises f number of sub-pixels, wherein, a=h/f, a, h, f are all positive integers greater than 1;
each sub-pixel group is coupled to at least one data selection circuit through data lines, and different sub-pixel groups are coupled to different data selection circuits through data lines; and
each selection switch group comprises f number of output terminals and f number of control terminals.

### Claim 3 (depends on 2)

The display panel according to claim 2, wherein each data selection circuit comprises a first selection switch group and a second selection switch group;
a quantity m of the plurality of data selection circuits and a quantity n of the plurality of data input lines satisfy: n=m+1; and
a first selection switch group of the j-th data selection circuit and a second selection switch group of the (j+1)-th data selection circuit are coupled to the j-th data input line, wherein j is a positive integer smaller than m.

### Claim 4 (depends on 3)

The display panel according to claim 3, wherein the first selection switch group comprises f number of first selection switches; each first selection switch comprises a control electrode, a first electrode, and a second electrode; control electrodes of different first selection switches are coupled to different data selection control lines; first electrodes of different first selection switches are coupled to a same data input line; and second electrodes of different first selection switches are coupled to different data lines;
the second selection switch group comprises f number of second selection switches; each second selection switch comprises a control electrode, a first electrode, and a second electrode; control electrodes of different second selection switches are coupled to different data selection control lines; first electrodes of different second selection switches are coupled to a same data input line; and second electrodes of different second selection switches are coupled to different data lines; and
in each data selection circuit, a second electrode of the i-th first selection switch in the first selection switch group and a second electrode of the i-th second selection switch in the second selection switch group are coupled to a same data line.

### Claim 5 (depends on 4)

The display panel according to claim 4, wherein the first selection switch comprises a first transistor; a control electrode of the first transistor is coupled to a data selection control line, and a first electrode of the first transistor is coupled to a data input line, a second electrode of the first transistor is coupled to a data line; and
the second selection switch comprises a second transistor; a control electrode of the second transistor is coupled to a data selection control line, a first electrode of the second transistor is coupled to a data input line, and a second electrode of the second transistor is coupled to a data line.

### Claim 6 (depends on 4)

The display panel according to claim 4, wherein the display panel comprises 2f number of data selection control lines.

### Claim 7 (depends on 6)

The display panel according to claim 6, wherein control electrodes of the i-th first selection switches in different data selection circuits are coupled to a same data selection control line; and
control electrodes of the i-th second selection switches in different data selection circuits are coupled to a same data selection control line.

### Claim 8 (depends on 2)

The display panel according to claim 2, wherein the pixel island comprises: a first sub-pixel row, a second sub-pixel row and a third sub-pixel row that are arranged along the first direction;
the first sub-pixel row comprises a plurality of sub-pixels with first color arranged along the second direction;
the second sub-pixel row comprises a plurality of sub-pixels with second color arranged along the second direction; and
the third sub-pixel row comprises a plurality of sub-pixels with third color arranged along the second direction.

### Claim 9 (depends on 2)

The display panel according to claim 2, wherein each sub-pixel row in the pixel island comprises 16 number of sub-pixels; each sub-pixel row is divided into 4 number of sub-pixel groups, and each sub-pixel group comprises 4number of sub-pixels; and
each selection switch group comprises 1 input terminal, 4 number of control terminals and 4 number of output terminals.

### Claim 10 (depends on 1)

A display device, comprising the display panel according to claim 1.

### Claim 11 (depends on 10)

The display device according to claim 10, further comprising:
a lenticular lens structure, located at a light emitting side of the display panel; and the lenticular lens structure comprises a plurality of lenticular lenses arranged in an array.

### Claim 12 (depends on 10)

The display device according to claim 10, further comprising:
a human eye-tracking system, configured to determine a gaze region of user's eyes on the display device in real time.

### Claim 13 (depends on 10)

A method for driving the display device according to claim 10, comprising:
determining a current display mode, and determining a gaze region of user's eyes on the display panel in real time;
determining display information of each sub-pixel of a pixel island corresponding to the gaze region according to the current display mode and the gaze region; and
providing data selection control signals to data selection control lines according to the display information; and providing a data signal corresponding to the display information provided by a data input line to each data line corresponding to the pixel island in the gaze region through data selection circuits.

### Claim 14 (depends on 13)

The method according to claim 13, wherein the determining the gaze region of the user's eyes on the display panel in real time comprises:
acquiring the gaze region of the user's eyes on the display panel through a human eye-tracking system;
the determining the display information of each sub-pixel of the pixel island corresponding to the gaze region according to the current display mode and the gaze region, comprises:
determining view information viewed by the user according to the current display mode and the gaze region of the user's eyes on the display panel; and
determining a target sub-pixel in a pixel island corresponding to the view information according to the view information, and determining display information of the target sub-pixel corresponding to the view information.

### Claim 15 (depends on 14)

The method according to claim 14, wherein the determining the current display mode comprises:
determining that the current display mode is a first display mode when system resource occupancy of the display device meets a preset condition; wherein, in the first display mode, each sub-pixel in a sub-pixel row of the pixel island corresponds to one viewpoint; and
determining that the current display mode is a second display mode when the system resource occupancy of the display device does not meet the preset condition; wherein, in the second display mode, f number of adjacent sub-pixels in a sub-pixel row of the pixel island correspond to one viewpoint, wherein the sub-pixel row of the pixel island comprises h number of sub-pixels, h/f is a positive integer; h and f are both positive integers greater than 1.

### Claim 16 (depends on 15)

The method according to claim 15, wherein each data selection circuit comprises a first selection switch group and a second multiplexerselection switch group, the first selection switch group comprises f number of first selection switches, and the second selection switch group comprises f number of second selection switches;
when determining that the current display mode is the first display mode, the providing the data selection control signals to the data selection control lines according to the display information; and the providing the data signal corresponding to the display information provided by the data input line to each data line corresponding to the pixel island in the gaze region through the data selection circuits, comprises:
providing a first data selection control signal to a plurality of data selection control lines coupled to the first selection switches, to control the f number of first selection switches in each data selection circuit to be turned on sequentially, and transmitting data signals of a data input line coupled to first electrodes of the f number of first selection switches to data lines coupled to second electrodes of the f number of first selection switches; simultaneously, providing a second data selection control signal to a plurality of data selection control lines coupled to the second selection switches, to control the f number of the second selection switches in each data selection circuit to be turned off.

### Claim 17 (depends on 16)

The method according to claim 16, wherein each sub-pixel row of the pixel island is divided into a number of sub-pixel groups, wherein, a=h/f, and each sub-pixel group comprises f number of adjacent sub-pixels;
when determining that the current display mode is the second display mode, the providing the data selection control signals to the data selection control lines according to the display information; and the providing the data signal corresponding to the display information provided by the data input line to each data line corresponding to the pixel island in the gaze region through the data selection circuits, comprises:
when the display information of the sub-pixels in each sub-pixel group is identical, providing the first data selection control signal to f number of data selection control lines coupled to the first selection switches, to control the f number of first selection switches in each data selection circuit to be turned on simultaneously, and transmitting a data signal of a data input line coupled to the first electrodes of the f number of first selection switches to the data lines coupled to the second electrodes of the f number of first selection switches;
simultaneously, providing the second data selection control signal to the f number of data selection control lines coupled to the second selection switches, to control the f number of second selection switches in each data selection circuit to be turned off.

### Claim 18 (depends on 17)

The method according to claim 17, wherein, when determining that the current display mode is the second display mode, the providing the data selection control signals to the data selection control lines according to the display information; and the providing the data signal corresponding to the display information provided by the data input line to each data line corresponding to the pixel island in the gaze region through the data selection circuits, further comprises:
in some of the sub-pixel groups, when display information of the first sub-pixel to the (g−1)-th sub-pixel is identical, display information of the g-th sub-pixel to the f-th sub-pixel is identical, and the display information of the (g−1)-th sub-pixel is different from the display information of the g-th sub-pixel, providing the first data selection control signal to data selection control lines coupled to the 1st to the (g−1)-th second selection switches and the g-th to the f-th first selection switches, to control the 1st to the (g−1)-th second selection switches and the g-th to the f-th first selection switches in each data selection circuit to be turned on simultaneously, and transmitting a data signal of a data input line coupled to first electrodes of the 1st to the (g−1)-th second selection switches and first electrodes of the g-th to the f-th first selection switches to data lines coupled to second electrodes of the 1st to the (g−1)-th second selection switches and second electrodes of the g-th to the f-th first selection switches; and
simultaneously, providing the second data selection control signal to data selection control lines coupled to the 1st to the (g−1)-th first selection switches and the g-th to the f-th second selection switches, to control the 1st to the (g−1)-th first selection switches and the g-th to the f-th second selection switches in each data selection circuit to be turned off.

### Claim 19 (depends on 17)

The method according to claim 17, wherein each data selection circuit comprises a first selection switch group and a second selection switch group; when determining that the current display mode is the second display mode, the providing the data selection control signals to the data selection control lines according to the display information; and providing the data signal corresponding to the display information provided by the data input line to each data line corresponding to the pixel island in the gaze region through the data selection circuits, comprises:
in some of the sub-pixel groups, when display information of the first sub-pixel to the (g−1)-th sub-pixel is identical, display information of the g-th sub-pixel to the f-th sub-pixel is identical, and the display information of the (g−1)-th sub-pixel is different from the display information of the g-th sub-pixel, providing the first data selection control signal to the plurality of data selection control lines coupled to the first selection switches, to control the 1st to the (g−1)-th first selection switches to be turned on simultaneously, control the g-th to the f-th first selection switches to be turned on simultaneously, and control the 1st to the (g−1)-th first selection switches and the g-th to the f-th first selection switches to be turned on sequentially, and
transmitting data signals of a data input line coupled to first electrodes of the f number of first selection switches to data lines coupled to second electrodes of the f number of first selection switches;
simultaneously, providing the second data selection control signal to a plurality of data selection control lines coupled to the second selection switches, to control the f number of second selection switches in each data selection circuit to be turned off;
wherein for each data input line, a data signal when the 1st to (g−1)-th first selection switches are turned on is different from a data signal when the g-th to f-th first selection switches are turned on; a data signal of the k-th data input line when the g-th to f-th first selection switches are turned on is identical with a data signal of the (k+1)-th data input line when the 1st to (g−1)-th first selection switches are turned on.