# US 10,373,547 B2 · Display substrate and driving method thereof, display device

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- Number: US 10,373,547 B2
- Document ID: US10373547B2
- Status: Granted
- Kind: B2
- Application number: 15/325,053
- Filed: 2016-02-16
- Published: 2017-10-19
- Granted: 2019-08-06
- Earliest claimed: 2015-09-18
- Assignees: Boe Technology Group Co., Ltd.
- Applicants: Boe Technology Group Co., Ltd.
- Inventors: Tuo Sun; Zhanjie Ma
- Web page: https://patentgrep.com/patent/US10373547B2

## CPC

- G09G 3/2092: {Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto (suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165)}
- G09G 3/20: 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}
- G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED]
- G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element
- G09G 3/36: using liquid crystals
- G09G 3/3648: {using an active matrix (G09G3/367 - G09G3/3696 take precedence)}
- G09G 3/3266: Details of drivers for scan electrodes
- G09G 3/3275: Details of drivers for data electrodes
- G09G 3/3618: {with automatic refresh of the display panel using sense/write circuits}
- G09G 3/3677: {suitable for active matrices only}
- G09G 3/3688: {suitable for active matrices only}
- G09G 2300/0408: Integration of the drivers onto the display substrate
- G09G 2300/0426: Layout of electrodes and connections
- G09G 2300/0814: used for selection purposes, e.g. logical AND for partial update
- G09G 2300/0819: used for counteracting undesired variations, e.g. feedback or autozeroing
- G09G 2300/0842: forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G 2300/0861: with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select 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 2310/0297: 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 2320/045: Compensation of drifts in the characteristics of light emitting or modulating elements
- 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

Embodiments of the disclosure provide a display substrate and a driving method thereof, as well as a display device. The display substrate comprises a plurality of select switch arrays and a plurality of selecting control circuits formed on the base substrate. Each select switch array comprises a plurality of select switches, a first terminal of each select switch being connected to a corresponding data line, a second end of each select switch being connected to a same data voltage input terminal, a control terminal of each select switch being connected to a same selecting control circuit. Each data line is connected with two columns of pixels, and the gate lines connected with the two columns of pixels are different. Each selecting control circuit is connected to a plurality of selecting control signal input terminals and a corresponding select switch array.

## Claims

### Claim 1

A display substrate, comprising a base substrate and a plurality of data lines, a plurality of gate lines and a plurality of pixels formed on the base substrate, and having a plurality of data voltage input terminals,
wherein the display substrate further comprises a plurality of select switch arrays and a plurality of selecting control circuits formed on the base substrate, and has a plurality of selecting control signal input terminals,
wherein each select switch array comprises a plurality of select switches, a first terminal of each select switch being connected to a corresponding data line, a second end of each select switch being connected to a same data voltage input terminal, a control terminal of each select switch being connected to a same selecting control circuit, wherein each data line connected with the select switch array is connected with two columns of pixels, and the gate line connected with pixels of one of the two columns differs from the gate line connected with pixels of the other column, and
wherein each selecting control circuit is connected to a plurality of selecting control signal input terminals and a corresponding select switch array, and is adapted to turn on select switches in the connected select switch array in different times under control of selecting control signals inputted by the selecting control signal input terminals,
wherein the selecting control signal input terminals comprise selecting signal input terminals and control signal input terminals,
wherein each selecting control circuit comprises a plurality of selecting control switch groups, each selecting control switch group comprising two selecting control switches, first terminals of the two selecting control switches being connected to a control terminal of a same select switch, second terminals of the two selecting control switches being connected to corresponding selecting signal input terminals respectively, control terminals of the two selecting control switches being connected to corresponding control signal input terminals respectively,
wherein the selecting signal input terminals connected by selecting control switches in each selecting control circuit are different from each other, and the select switches connected by the selecting control switch groups are different from each other,
wherein the display substrate further comprises a pixel driving circuit and a data voltage write control line formed on the base substrate, and
wherein each pixel comprises one pixel driving circuit, the pixel driving circuit being connected with a data line and a gate line corresponding to the pixel, and connected with the data voltage write control line, and wherein the pixel driving circuit is adapted to write a data voltage applied onto a data line connected by the pixel driving circuit into a first node under control of the data voltage write control line, write the data voltage into a second node under control of the gate line, and generate a current for driving the pixel based on a voltage of the second node.

### Claim 2 (depends on 1)

The display substrate as claimed in claim 1, wherein each selecting control circuit corresponds to two control signal input terminals, a control terminal of one selecting control switch in each selecting control switch group being connected with one of the two control signal input terminals, and a control terminal of the other selecting control switch being connected with the other of the two control signal input terminals.

### Claim 3 (depends on 1)

The display substrate as claimed in claim 1, wherein one column of pixels and the other column of pixels in two columns of pixels connected to a same data line are in staggered arrangement.

### Claim 4 (depends on 1)

A method of driving a display substrate as claimed in claim 1, comprising:
when refreshing a plurality of pixels connected by each gate line, for a select switch array connected by the plurality of pixels, applying a selecting control signal on a selecting control signal input terminal connected with a selecting control circuit connected by the select switch array, so as to turn on the select switches in the select switch array in different times, and when each select switch is turned on, applying a data voltage corresponding to a pixel connected with a data line connected by the select switch on a data voltage input terminal connected by the select switch array; and
applying a gate scanning signal on the gate line, so as to write the data voltage applied to the data voltage input terminal into a corresponding pixel
wherein the method further comprises: after receiving pixel data sent by a host, determining a sequence of pixels accessed to the data voltage input terminal according to preset gate line turn-on sequence and select switch turn-on sequence, and rearranging the received pixel data based on the determined sequence.

### Claim 5 (depends on 4)

The method as claimed in claim 4, further comprising: when applying a data voltage corresponding to a pixel connected with a data line connected by the select switch on the data voltage input terminal connected by the select switch array, applying a control signal on a data voltage write control line connected by the pixel, so as to write the data voltage applied on the data voltage input terminal into a first node;
wherein applying a gate scanning signal on the gate line so as to write the data voltage applied on the data voltage input terminal into a corresponding pixel comprises:
after the select switches are turned on in different times, applying the gate scanning signal on the gate line, so as to write the data voltage written into the first node of each pixel into a second node of the pixel.

### Claim 6

A display driving system, comprising: a selecting driving circuit, a gate driving circuit and a data driving circuit,
wherein when refreshing a plurality of pixels connected by each gate line, the selecting driving circuit is adapted to, for a select switch array connected by the plurality of pixels, apply a selecting control signal on a selecting control signal input terminal connected with the selecting control circuit connected by the select switch array, so as to turn on the select switches in the select switch array in different times,
wherein the data driving circuit is adapted to, when each select switch is turned on, apply a data voltage corresponding to a pixel connected with a data line connected by the select switch on a data voltage input terminal connected by the select switch array, and
wherein the gate driving circuit is adapted to apply a gate scanning signal on the gate line, so as to write the data voltage applied on the data voltage input terminal into a corresponding pixel, and
wherein the data driving circuit comprises a rearrangement module, and wherein the rearrangement module is adapted to, after receiving pixel data sent by a host, determine a sequence of pixels accessed to the data voltage input terminal according to preset gate line turn-on sequence and select switch turn-on sequence, and rearrange the received pixel data based on the determined sequence.

### Claim 7 (depends on 6)

The system as claimed in claim 6, further comprising a logic control circuit, wherein the logic control circuit comprises a rearrangement module, and wherein the rearrangement module is adapted to, after receiving pixel data sent by a host, determine a sequence of pixels accessed to the data voltage input terminal according to preset gate line turn-on sequence and select switch turn-on sequence, rearrange the received pixel data based on the determined sequence, and inputting the rearranged data into the data driving circuit.

### Claim 8 (depends on 1)

A display device, comprising a display substrate as claimed in claim 1.