公开(公告)号：US10991318B2

公开(公告)日：2021-04-27

申请号：US16580998

申请日：2019-09-24

Applicant: SYNAPTICS INCORPORATED

Inventor： Masao Orio ,  Hirobumi Furihata ,  Takashi Nose

IPC: G09G3/3291

Abstract: A display driver comprises image processing circuitry, compensation circuitry, voltage data generator circuitry, and drive circuitry. The image processing circuitry is configured to generate a first voltage data based on an image data corresponding to an image to be displayed on a display panel. The compensation circuitry is configured to generate correction values for pixels of the display panel, based on a total current consumed in the pixels of the display panel and positions of the pixels in the display panel. The voltage data generator circuitry is configured to generate a second voltage data by correcting the first voltage data based on the correction values. The drive circuitry is configured to write drive voltages into the pixels based on the second voltage data.

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：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.

公开(公告)号：US11132952B2

公开(公告)日：2021-09-28

申请号：US16810497

申请日：2020-03-05

Applicant: SYNAPTICS INCORPORATED

Inventor： Akio Sugiyama ,  Takashi Nose ,  Hirobumi Furihata ,  Masao Orio ,  Susumu Saito

IPC: G09G3/3258 ,  G09G3/20

Abstract: A display driver comprises gamma processing circuitry, compensation circuitry, and driver circuitry. The gamma processing circuitry is configured to process the image data to generate gamma processed image data. The compensation circuitry is configured to process the gamma-processed image data, based on a ratio of a number of display elements that emit light to a total number of display elements of a display panel, to generate compensated image data. The driver circuitry is configured to drive the display panel based on the compensated image data.

公开(公告)号：US12125447B2

公开(公告)日：2024-10-22

申请号：US18069074

申请日：2022-12-20

Applicant: Synaptics Incorporated

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

IPC: G09G3/34

CPC classification number: G09G3/342 ,  G09G2320/06 ,  G09G2360/16

Abstract: A display driver includes a display panel, a backlight array, and backlight control circuitry. The backlight array includes a plurality of light sources and is configured to illuminate the display panel. The backlight control circuitry is configured to determine first base luminance for a first light source of the plurality of light sources based at least in part on pixel data for a first set of pixels associated with the first light source. The backlight control circuitry is further configured to determine first compensated luminance for the first light source by modifying the first base luminance based at least in part on a position of the first light source in the backlight array. The backlight control circuitry is further configured to control light emission of the first light source based at least in part on the first compensated luminance.

公开(公告)号：US20230343263A1

公开(公告)日：2023-10-26

申请号：US18342078

申请日：2023-06-27

Applicant: Synaptics Incorporated

Inventor： Takashi Nose ,  Hirobumi Furihata ,  Masao Orio

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2320/0673 ,  G09G2320/0686 ,  G09G2320/0626 ,  G09G2310/0243

Abstract: A display driver includes image processing circuitry and drive circuitry. The image processing circuitry is configured to generate first voltage data for a first pixel in a first screen area of a display panel using a first gamma parameter. The image processing circuitry is further configured to generate second voltage data for a second pixel in a second screen area of the display panel using a second gamma parameter set. The image processing circuitry is further configured to determine an interpolated gamma parameter set for a third pixel in a connection area of the display panel through interpolation between the first gamma parameter set and the second gamma parameter set. The connection area is disposed between the first screen area and the second screen area. The image processing circuitry is further configured to generate third voltage data for the third pixel using the interpolated gamma parameter set.