US 11,694,594 B2Granted

Display device, driving method of display device, and electronic device

AssigneeSemiconductor Energy Laboratory Co., Ltd.

InventorsSusumu Kawashima, Koji Kusunoki, Kei Takahashi, Shunpei Yamazaki

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Abstract

To provide a display device capable of displaying a plurality of images by superimposition using a plurality of memory circuits provided in a pixel. A plurality of memory circuits are provided in a pixel, and signals corresponding to images for superimposition are retained in each of the plurality of memory circuits. In the pixel, the signals corresponding to the images for superimposition are added to each of the plurality of memory circuits. The signals are added to the signals retained in the memory circuits by capacitive coupling. A display element can display an image corresponding to a signal in which a signal written to a pixel through a wiring is added to the signals retained in the plurality of memory circuits. Reduction in the amount of arithmetic processing for displaying images by superimposition can be achieved.

Claims4

Dependent claims

A display device comprising a pixel, the pixel comprising a first memory circuit, a second memory circuit, a first transistor, a third capacitor, and a display element,

wherein the first memory circuit comprises a second transistor, a third transistor, and a first capacitor,
wherein the second memory circuit comprises the second transistor, a fourth transistor, and a second capacitor,
wherein one electrode of the first capacitor is electrically connected to a first wiring through the second transistor,
wherein the other electrode of the first capacitor is electrically connected to a second wiring through the third transistor,
wherein one electrode of the second capacitor is electrically connected to the first wiring through the second transistor,
wherein the other electrode of the second capacitor is electrically connected to a third wiring through the fourth transistor,
wherein the one electrode of the first capacitor, the one electrode of the second capacitor, and one electrode of the third capacitor are electrically connected to a gate of the first transistor, and
wherein the other electrode of the third capacitor is electrically connected to one of a source and a drain of the first transistor, and to the display element.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/976,919Filed 31 Oct 2022 · continuation
Priority: JP 2017-2163229 Nov 2017
Published: US 2023/0055169 A123 Feb 2023
Granted: 4 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification26 codes

G09G 3/2007
For presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged…:…
G09G 3/20
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes: for presentation of an…
G09G 3/2074
Display of intermediate tones: using sub-pixels
G09G 3/3233
Using an active matrix: with pixel circuitry controlling the current through the light-emitting element

Family

PCT/IB2018/058462Parent of this continuation · filed 30 Oct 2018
US 2023/0055169 A1Pre-grant publication · published 23 Feb 2023
Application16/756,343Parent of this continuation
US 11,488,528 B2Parent of this continuation
US 2020/0327835 A1Published application
US 11,694,594 B2This patent

From the US filing history. Foreign family members aren’t listed.