US 11,960,185 B2Granted

Display device and method for driving display device

AssigneeSemiconductor Energy Laboratory Co., Ltd.

InventorsShunpei Yamazaki, Kouhei Toyotaka, Satoshi Yoshimoto, Kazunori Watanabe, Susumu Kawashima, Kei Takahashi

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Abstract

Display data of pixels is updated at different timings. A scan line is connected to a first pixel and a second pixel, a first wiring is connected to the first pixel, and a second wiring is connected to the second pixel. In a first period, a signal for selecting the first pixel and the second pixel is supplied to the scan line. Setting data for setting a state where the display data of the first pixel is updated is supplied to the first wiring, and setting data for setting a state where the display data of the second pixel is updated is supplied to the second wiring. In a second period, a signal for selecting the first pixel and the second pixel is supplied to the scan line. Setting data for setting a state where the display data of the first pixel is not updated is supplied to the first wiring, and the setting data for setting the state where the display data of the second pixel is updated is supplied to the second wiring. In a third period, the first pixel displays first display data, and the second pixel displays second display data.

Claims8

Dependent claims

A method for driving a display device comprising a first pixel, a second pixel, a scan line, a first wiring, and a second wiring,

wherein a first period to a third period are included,
wherein the first pixel and the second pixel are configured to be supplied with different display data,
wherein setting data supplied to the first pixel and the second pixel is configured to set a state where the display data of the first pixel and the second pixel is updated or a state where the display data is not updated,
wherein the scan line is electrically connected to the first pixel and the second pixel,
wherein the first wiring is electrically connected to the first pixel,
wherein the second wiring is electrically connected to the second pixel,
wherein, in the first period, a signal for selecting the first pixel and the second pixel is supplied to the scan line, the setting data for setting the state where the display data of the first pixel is updated is supplied to the first wiring, and the setting data for setting the state where the display data of the second pixel is updated is supplied to the second wiring,
wherein, in the second period, a signal for selecting the first pixel and the second pixel is supplied to the scan line, the setting data for setting the state where the display data of the first pixel is not updated is supplied to the first wiring, and the setting data for setting the state where the display data of the second pixel is updated is supplied to the second wiring, and
wherein, in the third period, a signal for deselecting the first pixel and the second pixel is supplied to the scan line, first display data is displayed in the first pixel, and second display data is displayed in the second pixel.

6 more elements

A display device comprising a plurality of pixels, a plurality of scan lines, and a plurality of signal lines, a source driver, and a gate driver,

wherein the signal lines each comprise a first wiring and a second wiring,
wherein the scan lines each comprise a third wiring and a fourth wiring,
wherein the pixels each comprise a first transistor, a second transistor, a third transistor, a first capacitor, and a first circuit,
wherein the first circuit comprises an input terminal,
wherein a gate of the first transistor is electrically connected to the third wiring,
wherein one of a source and a drain of the first transistor is electrically connected to the first wiring,
wherein the other of the source and the drain of the first transistor is electrically connected to one of a source and a drain of the second transistor,
wherein the other of the source and the drain of the second transistor is electrically connected to the input terminal,
wherein one of a source and a drain of the third transistor is electrically connected to the second wiring,
wherein the other of the source and the drain of the third transistor is electrically connected to a gate of the second transistor and one electrode of the first capacitor,
wherein a gate of the third transistor is electrically connected to the fourth wiring
wherein the other of the source and the drain of the first transistor is not connected to the gate of the second transistor, and
wherein the third wiring and the fourth wiring are electrically connected to different portions of the gate driver.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/041,599Filed 19 Mar 2019
Priority: JP 2018-06770930 Mar 2018
Published: US 2023/0176433 A18 Jun 2023
Granted: 16 Apr 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

G02F 1/13624
Active matrix addressed cells: having more than one switching element per pixel
G02F 1/136286
Active matrix addressed cells: wiring, e.g. gate line, drain line
G09G 3/32
Using electroluminescent panels: semiconductive, e.g. using light-emitting diodes [LED]
G09G 3/3648
Control of matrices with row and column drivers: using an active matrix