Electronic device, method, and non-transitory computer readable storage medium identifying brightness level according to on pixel ratio

Patent metadata

Field	Value
Publication number	US-12175950-B2
Application number	US-202318332125-A
Country	US
Kind code	B2
Filing date	Jun 9, 2023
Priority date	Sep 26, 2022
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

An electronic device is provided. The electronic device includes a display including a display driver circuit and a display panel. The electronic device includes a processor. The display driver circuit is configured to obtain information regarding an image from the processor. The display driver circuit is configured to display, based on an on pixel ratio (OPR) of the image that is a first OPR, the image within a first brightness range from a first reference brightness level to a second reference brightness level greater than the first reference brightness level, through the display panel. The display driver circuit is configured to display, based on the OPR that is a second OPR lower than the first OPR, the image within a second brightness range from the first reference brightness level to a third reference brightness level greater than the second reference brightness level, through the display panel.

First claim

What is claimed is:

1. An electronic device comprising:
a display comprising display driver circuitry, and a display panel; and
at least one processor comprising processing circuitry, wherein the display driver circuitry is configured to:
obtain information regarding an image, from the at least one processor;
display, based on an on pixel ratio (OPR) of the image that is a first OPR, the image within first brightness range from a first reference brightness level to a second reference brightness level greater than the first reference brightness level, through the display panel; and
display, based on the OPR that is a second OPR less than the first OPR, the image within second brightness range from the first reference brightness level to a third reference brightness level greater than the second reference brightness level, through the display panel,
wherein the third reference brightness level among the second reference brightness level and the third reference brightness level is identified according to the OPR, and
wherein at least portion of a bar indicator displayed through the display panel for indicating that the second brightness range is applied is configured to be visually highlighted relative to a bar indicator displayed through the display panel for indicating that the first brightness range is applied.

2. The electronic device of claim 1 , further comprising:
an illuminance sensor; and
memory, storing instructions, comprising one or more storage media,
wherein, when executed by the at least one processor individually or collectively, the instructions cause the electronic device to, obtain data indicating an illuminance value about the electronic device through the illuminance sensor, and
wherein the display driver circuitry is further configured to:
display, based on the data indicating the illuminance value greater than a threshold value and the OPR that is the first OPR, the image in a brightness level corresponding to the second reference brightness level, through the display panel; and
display, based on the data indicating the illuminance value greater than the threshold value and the OPR that is the second OPR, the image in a brightness level corresponding to the third reference brightness level, through the display panel.

3. The electronic device of claim 1 , wherein the display driver circuitry is configured to:
store reference data regarding a plurality of display brightness values for providing the first brightness range;
obtain the information regarding the image of the OPR that is the second OPR from the at least one processor;
obtain a control command indicating a brightness level greater than the second reference brightness level and less than the third reference brightness level;
identify, in response to the control command, a display brightness value indicating the brightness level by executing an extrapolation using at least portion of the display brightness values; and
display, based on the display brightness value, the image in the brightness level, through the display panel.

4. The electronic device of claim 1 , wherein the display panel comprises pixels, and
wherein the display driver circuitry is configured to:
obtain the information regarding the image of the OPR that is the second OPR from the at least one processor;
obtain, from the at least one processor, a control command indicating a brightness level greater than the second reference brightness level and less than the third reference brightness level;
identify, in response to the control command, data regarding difference between the second reference brightness level that is a maximum brightness level of the first brightness range and the brightness level;
identify a current to be provided to each of the pixels, based on the data; and
display, based on providing the identified current to each of the pixels, the image in the brightness level, through the display panel.

5. The electronic device of claim 1 , wherein the display driver circuitry is configured to:
store reference data regarding a plurality of display brightness values for providing the first brightness range;
obtain the information regarding the image of the OPR that is the second OPR from the at least one processor;
obtain, from the at least one processor, a control command indicating a brightness level greater than the second reference brightness level and less than the third reference brightness level;
identify, in response to the control command, data regarding difference between the second reference brightness level that is a maximum brightness level of the first brightness range and the brightness level; and
based on modulating the image using the data, display the modulated image in the brightness level, through the display panel.

6. The electronic device of claim 1 , wherein the display driver circuitry is configured to:
store reference data regarding a plurality of display brightness values for providing the second brightness range;
obtain the information regarding the image of the OPR that is the second OPR from the at least one processor;
obtain, from the at least one processor, a control command indicating a brightness level greater than the second reference brightness level and less than the third reference brightness level;
identify, in response to the control command, a portion of the display brightness values corresponding to the brightness level; and
display, based on the portion of the display brightness values, the image in the brightness level, through the display panel, and
wherein at least one display brightness value among the display brightness values corresponding to a brightness level greater than the second reference brightness level and less than the third reference brightness level is obtained by executing a calibration using an image of an OPR less than a reference OPR.

7. The electronic device of claim 1 , wherein the display driver circuitry is configured to:
identify the OPR of the image;
based on the OPR that is the first OPR, obtain a first image by reducing a grayscale value of the image by a first value and display the first image, through the display panel; and
based on the OPR that is the second OPR, obtain a second image by reducing a grayscale value of the image by a second value less than the first value and display the second image, through the display panel.

8. The electronic device of claim 1 , further comprising:
memory, storing instructions, comprising one or more storage media,
wherein, when executed by the at least one processor individually or collectively, the instructions cause the electronic device to:
receive an input indicating to enable the second brightness range wider than the first brightness range; and
in response to the input, provide a signal indicating to enable the second brightness range to the display driver circuitry, and
wherein the display driver circuitry is configured to enable the second brightness range in the display driver circuitry, based on the signal.

9. The electronic device of claim 1 , wherein the display driver circuitry is configured to:
obtain the information from the at least one processor;
obtain a control command indicating a brightness level from the at least one processor;
display, based on the control command and the OPR that is the first OPR, the image within the first brightness range, through the display panel; and
display, based on the control command and the OPR that is the second OPR, the image within the second brightness range, through the display panel,
wherein the information is obtained based on a first cycle, and
wherein the control command is obtained based on a second cycle longer than the first cycle.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jeon Namhyeon
• Ryu Sungwon
• Eom Gyudong
• Lee Dongseop
• Kang Jongsik
• Lee Seungjae

Classifications

• G09G2320/0626

  for control of overall brightness · CPC title

• G09G3/20

  for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} · CPC title

• G09G2320/0673

  for control of gamma adjustment, e.g. selecting another gamma curve · CPC title

• G09G2360/16

  Calculation or use of calculated indices related to luminance levels in display data · CPC title

• G09G2360/144

  the light being ambient light · CPC title