公开(公告)号：US20210304649A1

公开(公告)日：2021-09-30

申请号：US16828819

申请日：2020-03-24

Applicant: SYNAPTICS INCORPORATED

Inventor： Masao ORIO ,  Joseph Kurth REYNOLDS ,  Xi CHU ,  Takashi NOSE ,  Hirobumi FURIHATA

IPC: G09G3/00 ,  G09G3/3208

Abstract: A method comprises acquiring measured luminance levels at a measurement point of a display area for a plurality of test images displayed in the display area, and estimating one or more luminance levels at one or more corresponding luminance estimation points of the display area using the measured luminance levels. The method further comprises determining, based on the one or more estimated luminance levels, a correction parameter using the estimated one or more luminance levels.

公开(公告)号：US20210012749A1

公开(公告)日：2021-01-14

申请号：US17027229

申请日：2020-09-21

Applicant: SYNAPTICS INCORPORATED

Inventor： Hirobumi FURIHATA ,  Kazutoshi AOGAKI ,  Tomoo MINAKI ,  Akio SUGIYAMA ,  Takashi NOSE

IPC: G09G5/10 ,  G09G3/3208 ,  G09G3/36

Abstract: A display driver includes gamma curve control circuitry and a converter controller. The gamma curve control circuitry is configured to generate a first gamma curve for a first display brightness value (DBV), and a second gamma curve for a second DBV lower than the first DBV. The converter controller is configured to control a digital-analog converter (DAC) configured to perform digital-analog conversion of an input image data. Further, the converter controller is configured to adjust an analog signal voltage amplitude of the DAC based on a range of an output voltage associated with the second gamma curve.

公开(公告)号：US20190156763A1

公开(公告)日：2019-05-23

申请号：US16193959

申请日：2018-11-16

Applicant: SYNAPTICS INCORPORATED

Inventor： Hirobumi FURIHATA ,  Susumu SAITO ,  Takashi NOSE

IPC: G09G3/3275 ,  G09G3/3233

Abstract: A display driver comprises correction circuitry configured to correct a first image data for a first line, based on a difference between a first current and a second current. The first current is for displaying the first line and the second current is for displaying a second line after the first line is displayed.

公开(公告)号：US20190122613A1

公开(公告)日：2019-04-25

申请号：US16223508

申请日：2018-12-18

Applicant: SYNAPTICS INCORPORATED

Inventor： Hirobumi FURIHATA ,  Damien BERGET ,  Takashi NOSE ,  Joseph Kurth REYNOLDS

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

Abstract: A host device divides original data into first to Nth stream data for N being an integer of two or more, generates first to Nth compressed stream data by sequentially compressing the first to Nth stream data with a variable length compression, divides the first to Nth compressed stream data into fixed-length blocks, and sequentially transmits the fixed-length blocks to the display driver. The display driver includes a memory storing therein the fixed-length blocks and a decompression circuitry reading out the fixed-length blocks from the memory. The decompression circuitry includes first to Nth processing circuits. The first to Nth processing circuits each perform a predetermined process on the fixed-length blocks received to generate processed data. The host device sorts the fixed-length blocks so that the fixed-length blocks are supplied in the order in which the first to Nth processing circuits require the fixed-length blocks.

公开(公告)号：US20200286431A1

公开(公告)日：2020-09-10

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：US20200118504A1

公开(公告)日：2020-04-16

申请号：US16582800

申请日：2019-09-25

Applicant: SYNAPTICS INCORPORATED

Inventor： Tomoo MINAKI ,  Hirobumi FURIHATA ,  Takashi NOSE

IPC: G09G3/36 ,  G09G3/3258

Abstract: A display driver comprises image processing circuitry and drive circuitry. The image processing circuitry is configured to output display image data representing a display image comprising an effective area to be displayed in a display area of a display panel and an invalid area not to be displayed in the display area. The drive circuitry drives the display panel based on the display image data comprising effective pixel data associated with first pixels included in the effective area and invalid pixel data associated with second pixels included in the invalid area. Effective pixel data associated with first pixels located within a boundary area adjacent to the invalid area is set to first grayscale values. The invalid pixel data associated with second pixels located within an insert area defined in the invalid area is set to second grayscale values comprising a value different from the first grayscale values.

公开(公告)号：US20180240440A1

公开(公告)日：2018-08-23

申请号：US15594327

申请日：2017-05-12

Applicant: SYNAPTICS INCORPORATED

Inventor： Hirobumi FURIHATA ,  Damien BERGET ,  Takashi NOSE ,  Joseph Kurth REYNOLDS

IPC: G09G5/395

CPC classification number: G09G5/395 ,  G09G3/2011 ,  G09G3/3258 ,  G09G3/3291 ,  G09G2300/0439 ,  G09G2310/027 ,  G09G2320/0271 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2330/028 ,  G09G2340/02 ,  G09G2350/00

Abstract: A host device divides original data into first to Nth stream data for N being an integer of two or more, generates first to Nth compressed stream data by sequentially compressing the first to Nth stream data with a variable length compression, divides the first to Nth compressed stream data into fixed-length blocks, and sequentially transmits the fixed-length blocks to the display driver. The display driver includes a memory storing therein the fixed-length blocks and a decompression circuitry reading out the fixed-length blocks from the memory. The decompression circuitry includes first to Nth processing circuits. The first to Nth processing circuits each perform a predetermined process on the fixed-length blocks received to generate processed data. The host device sorts the fixed-length blocks so that the fixed-length blocks are supplied in the order in which the first to Nth processing circuits require the fixed-length blocks.

公开(公告)号：US20210241670A1

公开(公告)日：2021-08-05

申请号：US16778614

申请日：2020-01-31

Applicant: SYNAPTICS INCORPORATED

Inventor： Masao ORIO ,  Takashi NOSE ,  Hirobumi FURIHATA

IPC: G09G3/20 ,  G06F3/01

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：US20180240404A1

公开(公告)日：2018-08-23

申请号：US15594203

申请日：2017-05-12

Applicant: SYNAPTICS INCORPORATED

Inventor： Hirobumi FURIHATA ,  Damien BERGET ,  Takashi NOSE ,  Joseph Kurth REYNOLDS

IPC: G09G3/3258 ,  G09G3/3291

Abstract: A display driver for driving a display panel includes a voltage data generator circuit calculating a voltage data value from an input grayscale value and a driver circuitry driving the display panel in response to the voltage data value. The voltage data generator circuit includes a basic control point data storage circuit storing therein basic control point data specifying a basic correspondence relationship between the input grayscale value and the voltage data value, a correction data memory storing correction data for each of the pixel circuits, a control point calculation circuit and a data correction circuit. When the voltage data value is calculated for a specific pixel circuit, the control point calculation circuit generates control point data associated with the specific pixel circuit by correcting the basic control point data on the basis of the correction data associated with the specific pixel circuit, and The data correction circuit calculates the voltage data value from the input grayscale value on the basis of the correspondence relationship specified by the control point data associated with the control point data.

公开(公告)号：US20200286429A1

公开(公告)日：2020-09-10

申请号：US16805424

申请日：2020-02-28

Applicant: SYNAPTICS INCORPORATED

Inventor： Masao ORIO ,  Hirobumi FURIHATA ,  Takashi NOSE ,  Ken SATO ,  Nobuhiro NAGATO

IPC: G09G3/3241

Abstract: A display driver comprises drive circuitry and emission control circuitry. The display driver is configured to drive a display panel. The display panel may be a self-luminous display panel. The emission control circuitry is configured to generate a control signal to control the display panel during a first frame period to successively move a plurality of non-light-emitting areas successively inserted at an end of a display area of the display panel in a predetermined direction, the plurality of non-light-emitting areas having gradually changing widths in the predetermined direction.