Electronic device and method for driving different color sub-pixels using respective control signals

Inventors: Chien-Chih Liao (Miao-Li County, TW); Hsing-Yuan Hsu (Miao-Li County, TW); Po-Yang Chen (Miao-Li County, TW); I-An Yao (Miao-Li County, TW)

Assignee: InnoLux Corporation

G09G3/2003 G09G3/32 G09G3/3233 G09G2300/0426 G09G2300/0452 G09G2320/0666 G09G2330/021

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Quick Facts

Patent No.: US 12676094
App. No.: 18/655,305
Granted: Jul 7, 2026
Kind: B2

External Links

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Abstract

An electronic device includes a pixel circuit, a data line and two control signal lines. The pixel circuit includes a first sub-pixel circuit and a second sub-pixel circuit, in which a light color of the first sub-pixel circuit is different from a light color of the second sub-pixel circuit. The data line is electrically connected with the first sub-pixel circuit and the second sub-pixel circuit. The two control signal lines are respectively a first control signal line and a second control signal line. The first control signal line is electrically connected with the first sub-pixel circuit for controlling a light-emitting time of the first sub-pixel circuit, and the second control signal line is electrically connected with the second sub-pixel circuit for controlling a light-emitting time of the second sub-pixel circuit.

Claims (18)

1 . An electronic device, comprising:

a pixel circuit comprising a first sub-pixel circuit, a second sub-pixel circuit and a third sub-pixel circuit, wherein the first sub-pixel circuit is a red sub-pixel circuit, the second sub-pixel circuit is a green sub-pixel circuit, and the third sub-pixel circuit is a blue sub-pixel circuit;

a data line electrically connected with the first sub-pixel circuit, the second sub-pixel circuit and the third sub-pixel circuit;

three control signal lines, wherein the three control signal lines are respectively a first control signal line, a second control signal line and a third control signal line, the first control signal line is electrically connected with the first sub-pixel circuit to provide a first control signal for controlling a light-emitting time of the first sub-pixel circuit, the second control signal line is electrically connected with the second sub-pixel circuit to provide a second control signal for controlling a light-emitting time of the second sub-pixel circuit, and the third control signal line is electrically connected with the third sub-pixel circuit to provide a third control signal for controlling a light-emitting time of the third sub-pixel circuit;

a first gate line electrically connected with the first sub-pixel circuit; and

a second gate line electrically connected with the second sub-pixel circuit;

wherein when a gray image is displayed, a duty ratio of the first control signal is equal to 12.5%, a duty ratio of the second control signal is equal to 37.5%, and a duty ratio of the third control signal is equal to 25%;

wherein when a white image is displayed, a duty ratio of the first control signal is equal to 50%, a duty ratio of the second control signal is equal to 37.5%, and a duty ratio of the third control signal is equal to 25%.

2 . The electronic device of claim 1 , wherein the first sub-pixel circuit and the second sub-pixel circuit are arranged along an extending direction of the data line and overlap with each other along the extending direction of the data line.

3 . The electronic device of claim 1 , wherein the gray image refers that gray scale values of the first sub-pixel circuit, the second sub-pixel circuit and the third sub-pixel circuit are all equal to or less than 63.

4 . A method for driving an electronic device, the electronic device comprising a pixel circuit, a data line, a first gate line and a second gate line, the pixel circuit comprising a first sub-pixel circuit, a second sub-pixel circuit and a third sub-pixel circuit, the first sub-pixel circuit being a red sub-pixel circuit, the second sub-pixel circuit being a green sub-pixel circuit, and the third sub-pixel circuit being a blue sub-pixel circuit, the data line being electrically connected with the first sub-pixel circuit, the second sub-pixel circuit and the third sub-pixel circuit, the first gate line being electrically connected with the first sub-pixel circuit, the second gate line being electrically connected with the second sub-pixel circuit, and the method for driving the electronic device comprising:

providing a first control signal to the first sub-pixel circuit for controlling a light-emitting time of the first sub-pixel circuit;

providing a second control signal to the second sub-pixel circuit for controlling a light-emitting time of the second sub-pixel circuit; and

providing a third control signal to the third sub-pixel circuit for controlling a light-emitting time of the third sub-pixel circuit;

5 . The method of claim 4 , wherein the gray image refers that gray scale values of the first sub-pixel circuit, the second sub-pixel circuit and the third sub-pixel circuit are all equal to or less than 63.

6 . The method of claim 4 , wherein the first sub-pixel circuit and the second sub-pixel circuit are arranged along an extending direction of the data line and overlap with each other along the extending direction of the data line.