Patents by Inventor Hirobumi Furihata
Hirobumi Furihata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240038183Abstract: 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.Type: ApplicationFiled: July 29, 2022Publication date: February 1, 2024Applicant: Synaptics IncorporatedInventors: Hirobumi Furihata, Kazutoshi Aogaki, Takashi Nose, Masao Orio, Tomoo Minaki, Akio Sugiyama
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Patent number: 11838525Abstract: Image compression circuitry comprises first-stage compression circuitry, first-stage selector circuitry, second-stage compression circuitry, and second-stage selector circuitry. The first-stage compression circuitry is configured to sequentially receive a plurality of input blocks each comprising pixel data of a plurality of pixels, generate a plurality of first-stage compressed blocks by compressing the plurality of input blocks, and generate a plurality of first-stage decompressed blocks. The first-stage selector circuitry is configured to select first-stage-selected decompressed blocks from among the plurality of first-stage decompressed blocks and select first-stage-selected compressed blocks corresponding to the first-stage-selected decompressed blocks from among the plurality of first-stage compressed blocks.Type: GrantFiled: June 28, 2022Date of Patent: December 5, 2023Assignee: Synaptics IncorporatedInventors: Micael Lacson Magpayo, Hirobumi Furihata, Takashi Nose
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Publication number: 20230377502Abstract: 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.Type: ApplicationFiled: June 19, 2023Publication date: November 23, 2023Applicant: Synaptics IncorporatedInventors: Masao Orio, Takashi Nose, Hirobumi Furihata
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Publication number: 20230343263Abstract: 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.Type: ApplicationFiled: June 27, 2023Publication date: October 26, 2023Inventors: Takashi Nose, Hirobumi Furihata, Masao Orio
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Patent number: 11727843Abstract: 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.Type: GrantFiled: October 19, 2021Date of Patent: August 15, 2023Assignee: Synaptics IncorporatedInventors: Takashi Nose, Hirobumi Furihata, Masao Orio
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Patent number: 11721253Abstract: A method includes generating first demura data comprising first correction amounts for pixels in a first region of a display panel. The first region has a first pixel density. The method further includes generating second demura data comprising second correction amounts for pixels in a second region of the display panel. The second region has a second pixel density different from the first pixel density. The method further includes generating modified second demura data by modifying the second correction amounts by a first factor. The method further comprises compressing the first demura data and the modified second demura data to generate compressed demura data. The method further includes providing the compressed demura data and factor information indicative of the first factor to a display driver.Type: GrantFiled: August 26, 2022Date of Patent: August 8, 2023Assignee: Synaptics IncorporatedInventors: Kazutoshi Aogaki, Hirobumi Furihata, Takashi Nose
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Patent number: 11710440Abstract: 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.Type: GrantFiled: August 3, 2022Date of Patent: July 25, 2023Assignee: Synaptics IncorporatedInventors: Masao Orio, Hirobumi Furihata, Kazutoshi Aogaki, Takashi Nose
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Patent number: 11710439Abstract: A display driver includes an image processing circuit and a driver circuit. The image processing circuit is configured to: receive input image data corresponding to an input image; generate first subpixel rendered data from a first part of the input image data for a first display region of a display panel using a first setting; and generate second subpixel rendered data from a second part of the input image data for a second display region of the display panel using a second setting different from the first setting. The first pixel layout is different than the second pixel layout. The driver circuit is configured to update the first display region of the display panel based at least in part on the first subpixel rendered data and update the second display region of the display panel based at least in part on the second subpixel rendered data.Type: GrantFiled: February 23, 2022Date of Patent: July 25, 2023Assignee: Synaptics IncorporatedInventors: Tomoo Minaki, Hirobumi Furihata, Takashi Nose, Akio Sugiyama
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Patent number: 11705088Abstract: 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.Type: GrantFiled: January 17, 2020Date of Patent: July 18, 2023Assignee: Synaptics IncorporatedInventors: Hirobumi Furihata, Takashi Nose, Masao Orio
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Publication number: 20230142900Abstract: A display driver includes image processing circuitry and drive circuitry. The image processing circuitry is configured to determine a total current of a display panel and perform an IR-drop compensation using the total current and a first graylevel for a first subpixel of the display panel to determine a first voltage level for the first subpixel. The drive circuitry is configured to update the first subpixel based at least in part on the first voltage level.Type: ApplicationFiled: November 8, 2021Publication date: May 11, 2023Applicant: Synaptics IncorporatedInventors: Masao Orio, Hirobumi Furihata, Takashi Nose
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Publication number: 20230118354Abstract: 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.Type: ApplicationFiled: October 19, 2021Publication date: April 20, 2023Applicant: Synaptics IncorporatedInventors: Takashi Nose, Hirobumi Furihata, Masao Orio
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Publication number: 20230124739Abstract: A display driver includes first interface circuitry, a graphic memory, image processing circuitry, and drive circuitry. The first interface circuitry is configured to receive an edge illumination command from a controller external to the display driver. The graphic memory is configured to store image data. The image processing circuitry is configured to render an edge-illuminated image by overlaying an edge illumination graphic on a first image corresponding to the image data in response to the edge illumination command. The edge illumination graphic extends along an edge of a display region of a display panel. The drive circuitry is configured to drive the display panel based on the edge-illuminated image.Type: ApplicationFiled: October 19, 2021Publication date: April 20, 2023Applicant: Synaptics IncorporatedInventors: Tomoo Minaki, Takashi Nose, Hirobumi Furihata
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Publication number: 20230120671Abstract: A method includes generating first demura data comprising first correction amounts for pixels in a first region of a display panel. The first region has a first pixel density. The method further includes generating second demura data comprising second correction amounts for pixels in a second region of the display panel. The second region has a second pixel density different from the first pixel density. The method further includes generating modified second demura data by modifying the second correction amounts by a first factor. The method further comprises compressing the first demura data and the modified second demura data to generate compressed demura data. The method further includes providing the compressed demura data and factor information indicative of the first factor to a display driver.Type: ApplicationFiled: August 26, 2022Publication date: April 20, 2023Applicant: Synaptics IncorporatedInventors: Kazutoshi Aogaki, Hirobumi Furihata, Takashi Nose
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Patent number: 11620933Abstract: 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.Type: GrantFiled: October 13, 2020Date of Patent: April 4, 2023Assignee: Synaptics IncorporatedInventors: Masao Orio, Takashi Nose, Hirobumi Furihata, Akio Sugiyama, Tomoo Minaki
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Publication number: 20230102440Abstract: 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.Type: ApplicationFiled: July 29, 2022Publication date: March 30, 2023Applicant: Synaptics IncorporatedInventors: Kazutoshi Aogaki, Takashi Nose, Hirobumi Furihata
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Publication number: 20230100358Abstract: A display driver includes an image processing circuit and a driver circuit. The image processing circuit is configured to: receive input image data corresponding to an input image; generate first subpixel rendered data from a first part of the input image data for a first display region of a display panel using a first setting; and generate second subpixel rendered data from a second part of the input image data for a second display region of the display panel using a second setting different from the first setting. The first pixel layout is different than the second pixel layout. The driver circuit is configured to update the first display region of the display panel based at least in part on the first subpixel rendered data and update the second display region of the display panel based at least in part on the second subpixel rendered data.Type: ApplicationFiled: February 23, 2022Publication date: March 30, 2023Applicant: Synaptics IncorporatedInventors: Tomoo Minaki, Hirobumi Furihata, Takashi Nose, Akio Sugiyama
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Patent number: 11615762Abstract: A display driver includes first interface circuitry, a graphic memory, image processing circuitry, and drive circuitry. The first interface circuitry is configured to receive an edge illumination command from a controller external to the display driver. The graphic memory is configured to store image data. The image processing circuitry is configured to render an edge-illuminated image by overlaying an edge illumination graphic on a first image corresponding to the image data in response to the edge illumination command. The edge illumination graphic extends along an edge of a display region of a display panel. The drive circuitry is configured to drive the display panel based on the edge-illuminated image.Type: GrantFiled: October 19, 2021Date of Patent: March 28, 2023Assignee: Synaptics IncorporatedInventors: Tomoo Minaki, Takashi Nose, Hirobumi Furihata
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Patent number: 11551614Abstract: 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.Type: GrantFiled: February 23, 2018Date of Patent: January 10, 2023Assignee: Synaptics IncorporatedInventors: Damien Berget, Hirobumi Furihata, Joseph Kurth Reynolds, Takashi Nose
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Publication number: 20220392385Abstract: 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.Type: ApplicationFiled: August 11, 2022Publication date: December 8, 2022Applicant: Synaptics IncorporatedInventors: Hirobumi Furihata, Tomoo Minaki, Masao Orio, Takashi Nose
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Publication number: 20220383797Abstract: 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.Type: ApplicationFiled: August 3, 2022Publication date: December 1, 2022Applicant: Synaptics IncorporatedInventors: Masao ORIO, Hirobumi FURIHATA, Kazutoshi AOGAKI, Takashi NOSE