公开(公告)号：US12300194B2

公开(公告)日：2025-05-13

申请号：US18672326

申请日：2024-05-23

Applicant: Synaptics Incorporated

Inventor： Kazutoshi Aogaki ,  Takashi Nose ,  Hirobumi Furihata

IPC: G09G5/10

Abstract: A display driver that includes image processing circuitry and a source driver. The image processing circuitry is configured to perform a burn-in compensation to determine a first compensated luminance value for a first pixel in a first area of a display panel based at least in part on a first accumulated luminance value for the first pixel. The first area has a first pixel layout. The image processing circuitry is further configured to scale a second accumulated luminance value for a second pixel in a second area of the display panel to determine a scaled accumulated luminance value. The second area has a second pixel layout different from the first pixel layout. The image processing circuitry is further configured to perform a burn-in compensation to determine a second compensated luminance value for the second pixel based at least in part on the scaled accumulated luminance value.

公开(公告)号：US12020666B2

公开(公告)日：2024-06-25

申请号：US17876780

申请日：2022-07-29

Applicant: Synaptics Incorporated

Inventor： Kazutoshi Aogaki ,  Takashi Nose ,  Hirobumi Furihata

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/046 ,  G09G2360/16

Abstract: A display driver that includes image processing circuitry and a source driver. The image processing circuitry is configured to perform a burn-in compensation to determine a first compensated luminance value for a first pixel in a first area of a display panel based at least in part on a first accumulated luminance value for the first pixel. The first area has a first pixel layout. The image processing circuitry is further configured to scale a second accumulated luminance value for a second pixel in a second area of the display panel to determine a scaled accumulated luminance value. The second area has a second pixel layout different from the first pixel layout. The image processing circuitry is further configured to perform a burn-in compensation to determine a second compensated luminance value for the second pixel based at least in part on the scaled accumulated luminance value.

公开(公告)号：US20240038183A1

公开(公告)日：2024-02-01

申请号：US17877659

申请日：2022-07-29

Applicant: Synaptics Incorporated

Inventor： Hirobumi Furihata ,  Kazutoshi Aogaki ,  Takashi Nose ,  Masao Orio ,  Tomoo Minaki ,  Akio Sugiyama

IPC: G09G3/34

CPC classification number: G09G3/3426 ,  G09G2360/16

Abstract: A display device includes a display panel, a backlight module, and backlight control circuitry. The backlight module is configured to illuminate the display panel, the backlight module comprising a plurality of light sources. The backlight control circuitry is configured to control first luminance of a first light source of the plurality of light sources based at least in part on a first weighted average of brightness values for a first set of pixels of the display panel.

公开(公告)号：US20250104579A1

公开(公告)日：2025-03-27

申请号：US18474480

申请日：2023-09-26

Applicant: Synaptics Incorporated

Inventor： Kazutoshi Aogaki ,  Hirobumi Furihata ,  Takashi Nose

IPC: G09G3/00 ,  G09G3/20

Abstract: A display driver IC includes a chromatic aberration correction (CAC) circuit and a drive circuit. The CAC circuit is configured to receive a first input color plane for a first color. The first input color plane includes a center region and a peripheral region that surrounds the center region of the first input color plane. The CAC circuit is further configured to generate an output color plane. The output color plane includes a center region and a scaled peripheral region that surrounds the center region of the output color plane. The center region of the output color plane is the same as the center region of the first input color plane. The scaled peripheral region is generated by scaling the peripheral region. The drive circuit is configured to update a display panel based on the output color plane.

公开(公告)号：US12136398B2

公开(公告)日：2024-11-05

申请号：US17877659

申请日：2022-07-29

Applicant: Synaptics Incorporated

Inventor： Hirobumi Furihata ,  Kazutoshi Aogaki ,  Takashi Nose ,  Masao Orio ,  Tomoo Minaki ,  Akio Sugiyama

IPC: G09G3/34

Abstract: A display device includes a display panel, a backlight module, and backlight control circuitry. The backlight module is configured to illuminate the display panel, the backlight module comprising a plurality of light sources. The backlight control circuitry is configured to control first luminance of a first light source of the plurality of light sources based at least in part on a first weighted average of brightness values for a first set of pixels of the display panel.

公开(公告)号：US20230102440A1

公开(公告)日：2023-03-30

申请号：US17876780

申请日：2022-07-29

Applicant: Synaptics Incorporated

Inventor： Kazutoshi Aogaki ,  Takashi Nose ,  Hirobumi Furihata

IPC: G09G5/10

Abstract: A display driver that includes image processing circuitry and a source driver. The image processing circuitry is configured to perform a burn-in compensation to determine a first compensated luminance value for a first pixel in a first area of a display panel based at least in part on a first accumulated luminance value for the first pixel. The first area has a first pixel layout. The image processing circuitry is further configured to scale a second accumulated luminance value for a second pixel in a second area of the display panel to determine a scaled accumulated luminance value. The second area has a second pixel layout different from the first pixel layout. The image processing circuitry is further configured to perform a burn-in compensation to determine a second compensated luminance value for the second pixel based at least in part on the scaled accumulated luminance value.

公开(公告)号：US11270609B2

公开(公告)日：2022-03-08

申请号：US16451695

申请日：2019-06-25

Applicant: SYNAPTICS INCORPORATED

Inventor： Hirobumi Furihata ,  Kazutoshi Aogaki ,  Tomoo Minaki

IPC: G09G3/00 ,  G06T7/90 ,  G09G3/3225 ,  G09G3/3208 ,  G09G3/36

Abstract: A system and method for generate mura correction data comprises obtaining brightness values of a pixel-existing area and a pixel-absent area of a display panel. Further, updated brightness values are generated by replacing the brightness value of the pixel-absent area with a suitable value. Mura correction data is generated using the updated brightness values. A display driver is configured with the mura correction data for updating a display device.

公开(公告)号：US20250149003A1

公开(公告)日：2025-05-08

申请号：US18503424

申请日：2023-11-07

Applicant: Synaptics Incorporated

Inventor： Masao Orio ,  Takashi Nose ,  Hirobumi Furihata ,  Tomoo Minaki ,  Kazutoshi Aogaki

IPC: G09G3/34 ,  G09G3/36

Abstract: A display device includes a backlight device, and a backlight control circuit. The backlight device includes a plurality of light sources configured to illuminate a plurality of zones of a display panel, respectively. The zones are aligned in a first direction, and each zone includes a plurality of subzones aligned in a second direction perpendicular to the first direction. The backlight control circuit is configured to receive an input image and determine a backlight value for a target light source of the light sources, the target light source corresponding to a target zone of the plurality of zones. Determining the backlight value for the target light source includes: determining local brightness values of respective subzones of the target zone based on the input image; and determining the backlight value for the target light source based on the local brightness values of the subzones of the target zone.

公开(公告)号：US20250104658A1

公开(公告)日：2025-03-27

申请号：US18617140

申请日：2024-03-26

Applicant: Synaptics Incorporated

Inventor： Hirobumi Furihata ,  Takashi Nose ,  Kazutoshi Aogaki

IPC: G09G3/34

Abstract: A display device includes, a backlight device, and a backlight control circuit. The backlight device includes a plurality of light sources configured to illuminate a display panel. The backlight control circuit is configured to apply a filter to a target part of the input image to generate a filtered image part. The target part of the input image is displayed in a corresponding region of the display panel illuminated by a target light source of the plurality of light sources. The backlight control circuit is further configured to control a luminance level of the target light source based on a maximum pixel luminance level of the filtered image part and a local average picture level (APL) of the filtered image part.

公开(公告)号：US12100361B1

公开(公告)日：2024-09-24

申请号：US18473675

申请日：2023-09-25

Applicant: Synaptics Incorporated

Inventor： Hirobumi Furihata ,  Kazutoshi Aogaki ,  Takashi Nose ,  Masao Orio

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G2320/0626 ,  G09G2360/16

Abstract: A display device includes a display panel, a backlight device, a drive circuit, and a backlight control circuit. The backlight device includes a plurality of light sources configured to illuminate the display panel. The drive circuit is configured to update the display panel based on an input image. The backlight control circuit is configured to apply a filter to a target part of the input image to generate a filtered image part. The target part of the input image is displayed in a corresponding region of the display panel illuminated by a target light source of the plurality of light sources. The backlight control circuit is further configured to control a luminance level of the target light source based on a maximum pixel luminance level of the filtered image part and a local average picture level (APL) of the filtered image part.