IP Library Granted Patent US 12,579,943
Granted Patent B2
US 12,579,943 · App. 18/293,869 · Granted Mar 17, 2026

Display apparatus, display module, and electronic device

Inventors: Munehiro Kozuma (Atsugi, JP); Tatsuya Onuki (Atsugi, JP); Hidetomo Kobayashi (Isehara, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
G09G3/3266G06F3/042G06V40/1318G09G3/3233G09G2300/0426G09G2300/0842G09G2310/0286G09G2310/08G09G2330/021G09G2354/00G09G2360/14
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Quick Facts
Patent No.
US 12,579,943
App. No.
18/293,869
Granted
Mar 17, 2026
Kind
B2
Abstract

To provide a display apparatus with a novel structure. A display portion including a first subpixel, a second subpixel, a first gate line supplied with a first selection signal to scan the first subpixel, and a second gate line supplied with a second selection signal to scan the second subpixel; and a driver control circuit including a gate line driver circuit, a switching portion that allots the first selection signal or the second selection signal output from the gate line driver circuit to the first gate line or the second gate line to be output, and a timing control circuit that controls the switching portion are included. The timing control circuit allows the gate line driver circuit to output the first selection signal of a first frame frequency and the second selection signal having a selection period longer than the first selection signal in a first operation mode, and to output the first selection signal and the second selection signal with a second frame frequency lower than the first frame frequency in a second operation mode.

Claims (56)

1 . A display apparatus comprising:

a display portion comprising:

a first subpixel including a light-emitting device;

a second subpixel including a light-receiving device;

a first gate line supplied with a first selection signal to scan the first subpixel; and

a second gate line supplied with a second selection signal to scan the second subpixel;

a gate line driver circuit comprising:

a display portion driver circuit configured to generate the first selection signal;

a sensor portion driver circuit configured to generate the second selection signal, the sensor portion driver circuit located adjacent to the display portion driver circuit; and

a first switching portion configured to be input with the first selection signal and the second selection signal;

a second switching portion configured to allot the first selection signal or the second selection signal output from the gate line driver circuit to the first gate line or the second gate line to be output; and

a timing control circuit configured to control the first switching portion and the second switching portion,

wherein the second switching portion is provided between the first switching portion and the display portion,

wherein the timing control circuit is configured to switch between a display operation and a light detection operation,

wherein the gate line driver circuit is configured to output the first selection signal with a first frame frequency and the second selection signal having a selection period shorter than the first selection signal in the display operation, and

wherein the gate line driver circuit is configured to output the first selection signal with a second frame frequency lower than the first frame frequency and the second selection signal having a selection period equivalent to a selection period of the first selection signal in the light detection operation.

2 . The display apparatus according to claim 1 , wherein the first switching portion and the second switching portion each comprise a plurality of analog switches.

3 . The display apparatus according to claim 1 , further comprising an image processor,

wherein the image processor is configured to output a switching signal that controls the timing control circuit in accordance with a detection state or a non-detection state of an object when the light detection operation is executed.

4 . The display apparatus according to claim 1 ,

wherein the light-emitting device is configured to emit visible light, and

wherein the light-receiving device is configured to detect visible light.

5 . The display apparatus according to claim 1 ,

wherein the light-emitting device is configured to emit infrared light, and

wherein the light-receiving device is configured to detect infrared light.

6 . A display module comprising the display apparatus according to claim 1 and at least one of a connector and an integrated circuit.

7 . An electronic device comprising the display module according to claim 6 and at least one of a housing, a battery, a camera, a speaker, and a microphone.

8 . The display apparatus according to claim 1 , wherein the display portion driver circuit and the sensor portion driver circuit are configured to switch between the first selection signal and the second selection signal to be output based on a signal output from a common shift register.

9 . A display apparatus comprising:

a display portion comprising:

a first subpixel including a light-emitting device;

a second subpixel including a light-receiving device;

a first gate line supplied with a first selection signal to scan the first subpixel; and

a second gate line supplied with a second selection signal to scan the second subpixel;

a gate line driver circuit comprising:

a display portion driver circuit configured to generate the first selection signal;

a sensor portion driver circuit configured to generate the second selection signal, the sensor portion driver circuit located adjacent to the display portion driver circuit; and

a first switching portion configured to be input with the first selection signal and the second selection signal;

a second switching portion configured to allot the first selection signal or the second selection signal output from the gate line driver circuit to the first gate line or the second gate line to be output; and

a timing control circuit configured to control the first switching portion and the second switching portion,

wherein the second switching portion is provided between the first switching portion and the display portion,

wherein the timing control circuit is configured to switch between a display operation by driving the light-emitting device and a detection operation by driving the light-receiving device,

wherein the gate line driver circuit is configured to output the first selection signal with a first frame frequency and the second selection signal having a selection period shorter than the first selection signal in the display operation, and

wherein the gate line driver circuit is configured to output the first selection signal with a second frame frequency lower than the first frame frequency and the second selection signal having a selection period equivalent to a selection period of the first selection signal in the detection operation.

10 . The display apparatus according to claim 9 , wherein each of the first switching portion and the second switching portion comprises a plurality of analog switches.

11 . The display apparatus according to claim 9 , further comprising an image processor,

wherein the image processor is configured to output a switching signal that controls the timing control circuit in accordance with a detection state or a non-detection state of an object when the detection operation is executed.

12 . The display apparatus according to claim 9 ,

wherein the light-emitting device is configured to emit visible light, and

wherein the light-receiving device is configured to detect visible light.

13 . The display apparatus according to claim 9 ,

wherein the light-emitting device is configured to emit infrared light, and

wherein the light-receiving device is configured to detect infrared light.

14 . A display module comprising the display apparatus according to claim 9 and at least one of a connector and an integrated circuit.

15 . An electronic device comprising the display module according to claim 14 and at least one of a housing, a battery, a camera, a speaker, and a microphone.

16 . The display apparatus according to claim 9 , wherein the display portion driver circuit and the sensor portion driver circuit are configured to switch between the first selection signal and the second selection signal to be output based on a signal output from a common shift register.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2024
From: KOZUMA, MUNEHIRO; ONUKI, TATSUYA; KOBAYASHI, HIDETOMO
To: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Reel/Frame 066314/0763 →
Priority Claims (1)
JP 2021-130589 · Aug 10, 2021 · national
Continuity (1)
Related Publication 20240331641A1 · Oct 3, 2024
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