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：US12087197B2

公开(公告)日：2024-09-10

申请号：US17886442

申请日：2022-08-11

Applicant: Synaptics Incorporated

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

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/027 ,  G09G2320/0276 ,  G09G2320/0626 ,  G09G2320/0673

Abstract: A display driver comprises control circuitry configured to store a default gamma curve, determine a count of in-region pixels of a target pixel in a display panel and neighboring pixels of the target pixel, the in-region pixels being located in a predetermined region of the display panel, and determine a scale factor based on a ratio of the count of the in-region pixels to a total number of the target pixel and the neighboring pixels. The control circuitry also determines a modified gamma curve by scaling the default gamma curve with the scale factor. The display driver further comprises image processing circuitry configured to apply a gamma transformation based on the modified gamma curve to image data defined for the target pixel to generate output voltage data for the target pixel.

公开(公告)号：US20230377502A1

公开(公告)日：2023-11-23

申请号：US18211558

申请日：2023-06-19

Applicant: Synaptics Incorporated

Inventor： Masao Orio ,  Takashi Nose ,  Hirobumi Furihata

IPC: G09G3/20 ,  G06F3/01

CPC classification number: G09G3/2003 ,  G06F3/013 ,  G09G2320/0242 ,  G09G2380/02 ,  G09G2300/0452 ,  G09G2354/00 ,  G09G2320/041 ,  G09G2360/144 ,  G09G2320/0261

Abstract: A display driver comprises image processing circuitry and driver circuitry. The image processing circuitry is configured to receive spatial distribution information of a physical quantity related to a display panel. The image processing circuitry is further configured to generate output voltage data by processing input pixel data associated with subpixels of the pixel. The drive circuitry is configured to drive the display panel based on the output voltage data.

公开(公告)号：US11749231B2

公开(公告)日：2023-09-05

申请号：US17393557

申请日：2021-08-04

Applicant: Synaptics Incorporated

Inventor： Satoshi Yamaguchi ,  Kota Kitamura ,  Takashi Nose

IPC: G09G5/377 ,  G02B27/01

CPC classification number: G09G5/377 ,  G02B27/017 ,  G09G2340/0407

Abstract: A display driver includes image processing circuitry and drive circuitry. The image processing circuitry is configured to receive a foveal image, a full frame image, and coordinate data that specifies a position of the foveal image in the full frame image. The image processing circuitry is further configured to render a resulting image based on the full frame image independently of the foveal image in response to detection of a data error within the coordinate data. The drive circuitry is configured to drive a display panel based on the resulting image.

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：US11551614B2

公开(公告)日：2023-01-10

申请号：US16488520

申请日：2018-02-23

Applicant: SYNAPTICS INCORPORATED

Inventor： Damien Berget ,  Hirobumi Furihata ,  Joseph Kurth Reynolds ,  Takashi Nose

IPC: G09G3/20 ,  G09G3/3258 ,  G09G3/3291 ,  G09G3/3275 ,  G09G5/395

Abstract: A system and method for encoding, transmitting and updating a display based on demura calibration information for a display device comprises generating demura correction coefficients based on display color information, separating coherent components from the demura correction coefficients to generate residual information, and encode the residual information using a first encoding technique. Further, the image data may be divided into data streams, compressed and transmitted to from a host device to a display driver of a display device. The display driver decompresses and drives subpixels of the pixels in based on the decompressed data. The display driver updates the subpixels of a display using corrected greyscale values for each subpixel are determined from the decompressed data.

公开(公告)号：US20220392385A1

公开(公告)日：2022-12-08

申请号：US17886442

申请日：2022-08-11

Applicant: Synaptics Incorporated

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

IPC: G09G3/20

Abstract: A display driver comprises control circuitry configured to store a default gamma curve, determine a count of in-region pixels of a target pixel in a display panel and neighboring pixels of the target pixel, the in-region pixels being located in a predetermined region of the display panel, and determine a scale factor based on a ratio of the count of the in-region pixels to a total number of the target pixel and the neighboring pixels. The control circuitry also determines a modified gamma curve by scaling the default gamma curve with the scale factor. The display driver further comprises image processing circuitry configured to apply a gamma transformation based on the modified gamma curve to image data defined for the target pixel to generate output voltage data for the target pixel

公开(公告)号：US20220114942A1

公开(公告)日：2022-04-14

申请号：US17069384

申请日：2020-10-13

Applicant: Synaptics Incorporated

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

IPC: G09G3/20

Abstract: A display driver includes image processing circuitry and driver circuitry. The image processing circuitry is configured to process first image data for pixels of a display panel comprising a first region and a second region to generate output voltage data. The first region and the second region have different pixel layouts. The driver circuitry is configured to update the pixels based on the output voltage data. Processing the first image data comprises IR-drop compensation based on first luminances of the pixels, each of the first luminances being determined based on the first image data and whether a corresponding pixel of the pixels is located in the first region.

公开(公告)号：US11183101B2

公开(公告)日：2021-11-23

申请号：US16763981

申请日：2018-11-15

Applicant: Synaptics Incorporated

Inventor： Masao Orio ,  Hirobumi Furihata ,  Susumu Saito ,  Masaaki Okawa ,  Takashi Nose

IPC: G09G3/20 ,  G09G3/3233

Abstract: A display driver comprises: digital gamma circuitry configured to generate a voltage data based on an image data for a pixel of interest; compensating circuitry configured to calculate a total current of the display panel; and correction circuitry. The correction circuitry is configured to correct the voltage data, based on the calculated total current.