公开(公告)号：US20190156786A1

公开(公告)日：2019-05-23

申请号：US16193985

申请日：2018-11-16

Applicant: SYNAPTICS INCORPORATED

Inventor： Kazutoshi AOGAKI ,  Hirobumi FURIHATA ,  Hirohisa TSUCHIDA ,  Takashi NOSE

IPC: G09G5/10 ,  G09G3/20

Abstract: A device and method for correcting mura within a display device. The device may include a display driver that includes lookup table circuitry, correction amount calculation circuitry, and mura correction circuitry. The lookup table circuitry is configured to calculate a second grayscale value for a second display brightness value (DBV), the second grayscale value being determined to achieve a brightness level corresponding to a first grayscale value and a first DBV. The correction amount calculation circuitry is configured to calculate a mura correction amount based on a mura correction data for the second grayscale value and the second DBV. Further, the mura correction circuitry is configured to perform a mura correction on input image data by using the mura correction amount.

公开(公告)号：US20220383797A1

公开(公告)日：2022-12-01

申请号：US17880603

申请日：2022-08-03

Applicant: Synaptics Incorporated

Inventor： Masao ORIO ,  Hirobumi FURIHATA ,  Kazutoshi AOGAKI ,  Takashi NOSE

IPC: G09G3/20

Abstract: A display driver that drives a display panel comprises storage circuitry, color addition processing circuitry, and drive circuitry. The storage circuitry stores F subpixel data acquired from color coordinate data indicating color coordinates of a displayed color in a predetermined color space displayed on the display panel when an R subpixel, a G subpixel, and a B subpixel in each of a plurality of pixels of the display panel are driven with drive signals corresponding to a minimum grayscale value and an F subpixel in each of the plurality of pixels which displays an additional color other than a primary color R, a primary color G, and a primary color B is driven with a drive signal corresponding to a maximum grayscale value. The color addition processing circuitry generates output FRGB data from input RGB data, in response to the F subpixel data stored in the storage circuitry.

公开(公告)号：US20220139273A1

公开(公告)日：2022-05-05

申请号：US17085359

申请日：2020-10-30

Applicant: Synaptics Incorporated

Inventor： Petr SHEPELEV ,  Takayuki NOTO ,  Takashi NOSE

IPC: G09F9/30 ,  H01L41/113 ,  G01B7/30

Abstract: A method and apparatus for sensing strain in a flexible electronic display. In some implementations, a display controller may be coupled to an electronic display panel. The display controller is configured to receive sensor signals from one or more piezoresistive sensors disposed in the electronic display panel, determine an amount of strain in the electronic display panel based on the received sensor signals, determine a bend angle of the electronic display panel based on the determined amount of strain, and update a configuration of the electronic display panel based at least in part on the determined bend angle. In some implementations, the electronic display panel may be an organic light-emitting diode (OLED) display panel. In some implementations, the electronic display panel may include a polycrystalline silicon (poly-Si) backplane disposed on a flexible substrate, where each of the piezoresistive sensors includes one or more strain gauges formed on the poly-Si backplane.

公开(公告)号：US20220005397A1

公开(公告)日：2022-01-06

申请号：US16622788

申请日：2018-03-15

Applicant: SYNAPTICS INCORPORATED

Inventor： Masao ORIO ,  Hirobumi FURIHATA ,  Kazutoshi AOGAKI ,  Takashi NOSE

IPC: G09G3/20

Abstract: A display driver that drives a display panel comprises storage circuitry, color addition processing circuitry, and drive circuitry. The storage circuitry stores F subpixel data acquired from color coordinate data indicating color coordinates of a displayed color in a predetermined color space displayed on the display panel when an R subpixel, a G subpixel, and a B subpixel in each of a plurality of pixels of the display panel are driven with drive signals corresponding to a minimum grayscale value and an F subpixel in each of the plurality of pixels which displays an additional color other than a primary color R, a primary color G, and a primary color B is driven with a drive signal corresponding to a maximum grayscale value. The color addition processing circuitry generates output FRGB data from input RGB data, in response to the F subpixel data stored in the storage circuitry.

公开(公告)号：US20210225323A1

公开(公告)日：2021-07-22

申请号：US16746756

申请日：2020-01-17

Applicant: SYNAPTICS INCORPORATED

Inventor： Hirobumi FURIHATA ,  Takashi NOSE ,  Masao ORIO

IPC: G09G5/10

Abstract: A display driver comprises signal supply circuitry and control circuitry. The signal supply circuitry is configured to supply an emission control signal to a display panel. The emission control signal controls a ratio of pixel circuits that emit light to pixels of the display panel. The control circuitry is configured to control the emission control signal based on an input image data.

公开(公告)号：US20210134221A1

公开(公告)日：2021-05-06

申请号：US16488520

申请日：2018-02-23

Applicant: SYNAPTICS INCORPORATED

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

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/20 ,  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：US20190278967A1

公开(公告)日：2019-09-12

申请号：US15916034

申请日：2018-03-08

Applicant: SYNAPTICS INCORPORATED

Inventor： Petr SHEPELEV ,  Erik THOMPSON ,  Michitoshi HONMA ,  Toshifumi OGATA ,  Goro SAKAMAKI ,  Takashi NOSE ,  Hirobumi FURIHATA

IPC: G06K9/00 ,  G09G3/20 ,  G09G3/32

Abstract: An example method of illuminating an optical fingerprint sensor integrated with a display, where the display includes a fingerprint (FP) pixel region and an outer pixel region exclusive of the FP pixel region, is described. The method includes: processing image data in display driver circuitry configured to drive the display to present an image; adjusting a first brightness setting, during the processing of the image data, corresponding to both the FP pixel region and the outer pixel region to provide illumination for the optical fingerprint sensor; and adjusting a second brightness setting, during the processing of the image data, corresponding to only the outer pixel region.

公开(公告)号：US20190156727A1

公开(公告)日：2019-05-23

申请号：US16193975

申请日：2018-11-16

Applicant: SYNAPTICS INCORPORATED

Inventor： Tomoo MINAKI ,  Hirobumi FURIHATA ,  Takashi NOSE

IPC: G09G3/20

Abstract: A display driver comprises: subpixel rendering (SPR) circuitry configured to use, in SPR, predetermined regions which fall within two lines of input subpixels of an input image; buffer memory circuitry configured to store first subpixel data for a plurality of first subpixels of the input subpixels, wherein the plurality of the first subpixels each are encompassed in the predetermined regions; and a register configured to store coefficients, wherein the coefficients respectively correspond to shapes of the portions of the first subpixels encompassed in the predetermined regions. The SPR circuitry is configured to calculate second subpixel data for second subpixels of an output image, based on the first subpixel data stored in the buffer memory circuitry and the coefficients stored in the register.