Method of driving display device, display device performing the same, electronic apparatus including the same

Patent metadata

Field	Value
Publication number	US-2025285586-A1
Application number	US-202519020426-A
Country	US
Kind code	A1
Filing date	Jan 14, 2025
Priority date	Mar 7, 2024
Publication date	Sep 11, 2025
Grant date	—

Abstract

A method of driving a display device includes: receiving input image data; generating temperature information for each of areas of a display pane of the display device; detecting a local temperature change based on the temperature information; and determining whether the local temperature change is a change due to the input image data.

First claim

What is claimed is:

1 . A method of driving a display device, the method comprising:
receiving input image data; generating temperature information for each of areas of a display panel of the display device; detecting a local temperature change based on the temperature information; and determining whether the local temperature change is a change due to the input image data.

2 . The method of claim 1 , further comprising:
determining whether the local temperature change spreads in a longitudinal direction if the local temperature change is not the change due to the input image data; and wherein the longitudinal direction is parallel to a direction in which liquid flows on the display panel.

3 . The method of claim 2 , further comprising:
displaying a warning window if the local temperature change spreads in the longitudinal direction is determined.

4 . The method of claim 3 ,
wherein the warning window displays a message to remove liquid present in a first area of the areas of the display panel, and wherein the first area is an area where the local temperature change spreads in the longitudinal direction.

5 . The method of claim 2 , further comprising:
blocking power supply to the display panel if the local temperature change spreads in the longitudinal direction is determined.

6 . The method of claim 1 , wherein:
the temperature information for each of the areas of the display panel comprises a first temperature information of a first area of the areas where liquid is present on the display panel and a second temperature information of at least one area of the areas of the display panel where the liquid is not present on the display panel; and the first temperature information and the second temperature information have different values.

7 . The method of claim 6 , wherein the first temperature information has a smaller value than the second temperature information.

8 . The method of claim 6 , wherein:
the first temperature information is proportional to a first current value provided to a pixel at the first area; and the second temperature information is proportional to a second current value provided to a pixel at a second area of the areas of the display panel.

9 . A display device comprising:
a display panel comprising a plurality of pixels; a power supply configured to supply power to the display panel; and a controller configured to receive input image data, generate temperature information for each of areas of the display panel, detect a local temperature change based on the temperature information, and determine whether the local temperature change is a change due to the input image data.

10 . The display device of claim 9 ,
wherein the controller is configured to determine whether the local temperature change spreads in a longitudinal direction if the local temperature change is not the change due to the input image data; and wherein the longitudinal direction is parallel to a direction in which liquid flows on the display panel.

11 . The display device of claim 10 ,
wherein the controller further comprises a warning part that is configured to display a warning window if the local temperature change spreads in the longitudinal direction is determined, wherein the warning window is configured to display a message to remove liquid present in a first area of the areas of the display panel, and wherein the first area is an area where the local temperature change spreads in the longitudinal direction.

12 . The display device of claim 10 ,
wherein the controller further comprises a blocking part that is configured to block power supply to the display panel if the local temperature change spreads in the longitudinal direction is determined.

13 . The display device of claim 9 , wherein:
the temperature information for each of the areas of the display panel comprises a first temperature information of a first area of the areas where liquid is present on the display panel and a second temperature information of at least one area of the areas of the display panel where the liquid is not present on the display panel; wherein the first temperature information has a smaller value than the second temperature information.

14 . The display device of claim 13 , wherein:
the first temperature information is proportional to a first current value provided to a pixel at the first area, and the second temperature information is proportional to a second current value provided to a pixel at a second area of the areas of the display panel.

15 . The display device of claim 9 , further comprising:
a driving integrated circuit electrically connected with the display panel; and a penetration prevention member sealing a gap between the display panel and the driving integrated circuit, wherein each of the plurality of pixels comprises an organic light-emitting material.

16 . An electronic apparatus comprising:
a display device including a display panel comprising a plurality of pixels; a processor configured to control the display device; a power supply configured to supply power to the display device; and a controller configured to transmit input image data to the display panel, generate temperature information for each of areas of the display panel, detect a local temperature change based on the temperature information, and determine whether the local temperature change is a change due to the input image data.

17 . The electronic apparatus of claim 16 ,
wherein the controller is configured to determine whether the local temperature change spreads in a longitudinal direction if the local temperature change is not the change due to the input image data, wherein the controller is configured to commend to the display device to display a warning window including a message to remove liquid present in a first area of the areas of the display panel if the local temperature change spreads in the longitudinal direction is determined, wherein the longitudinal direction is parallel to a direction in which liquid flows on the display panel, and wherein the first area is an area where the local temperature change spreads in the longitudinal direction.

18 . The electronic apparatus of claim 16 ,
wherein the controller is configured to determine whether the local temperature change spreads in a longitudinal direction if the local temperature change is not the change due to the input image data, wherein the controller is configured to commend to the power supply to block power supply to the display panel if the local temperature change spreads in the longitudinal direction is determined, and wherein the longitudinal direction is parallel to a direction in which liquid flows on the display panel.

19 . The electronic apparatus of claim 16 wherein:
the temperature information for each of the areas of the display panel comprises a first temperature information of a first area of the areas where liquid is present on the display panel and a second temperature information of at least one area of the areas of the display panel where the liquid is not present on the display panel;
wherein the first temperature information has a smaller value than the second temperature information.

20 . The electronic apparatus of claim 16 , wherein:
the first temperature information is proportional to a first current value provided to a pixel at the first area; and the second temperature information is proportional to a second current value provided to a pixel a

Assignees

• Samsung Display Co Ltd

Inventors

• Shin Chul
• Sung Hwaan
• Kim Taewan
• Lee Jeongah

Classifications

• G09G2330/027

  Arrangements or methods related to powering off a display · CPC title

• G09G2330/04

  Display protection · CPC title

• G09G2320/041

  Temperature compensation · CPC title

• G09G2330/12

  Test circuits or failure detection circuits included in a display system, as permanent part thereof · CPC title

• G08B5/00

  Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied · CPC title