Patents by Inventor Chia-Lei Yu
Chia-Lei Yu 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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Patent number: 11568829Abstract: An electronic device and a display image compensation method thereof are provided. The display image compensation method includes: receiving a first image signal and a second image signal sequentially at different time points, and displaying the first image signal by using a display unit; calculating current temperature information according to a display time length of the first image signal on the display unit and pixel data of the first image signal, and calculating a variation between the current temperature information and reference temperature information; and generating pixel compensation data corresponding to the current temperature information when the variation is greater than a preset value, compensating the second image signal according to the pixel compensation data, and outputting the compensated second image signal to the display unit.Type: GrantFiled: October 15, 2021Date of Patent: January 31, 2023Assignee: ASUSTEK COMPUTER INC.Inventors: Yi-Ching Chen, Chin-An Tseng, Chia-Lei Yu
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Patent number: 11393390Abstract: An electronic device is provided in this disclosure. The electronic device includes a display panel and a processor. The processor is electrically connected to the display panel. The processor receives image data and calculates a display area occupied by the image data on the display panel according to the image data. Then, the processor adjusts a backlight current value of the display panel according to the display area and an area-current relationship, to adjust the brightness of the display panel. In this way, the brightness of the display panel is consistent when the display panel displays images of different areas. The disclosure also provides a brightness adjustment method of an electronic device.Type: GrantFiled: April 16, 2021Date of Patent: July 19, 2022Assignee: ASUSTEK COMPUTER INC.Inventors: Chia-Feng Yang, Yi-Ching Chen, Chia-Lei Yu
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Patent number: 11393412Abstract: An electronic device is provided, including a display panel and a processor. The display panel is configured to display image data and includes a backlight module, and the processor is electrically connected to the display panel. The processor averages current values of the backlight module corresponding to the image data in a first time period, to generate an average current value, and compares the average current value with a current threshold. When the average current value is greater than the current threshold, the processor generates an adjusted maximum current value, and correspondingly reduces current values of the backlight module in a second time period according to the adjusted maximum current value, to reduce a temperature of the electronic device. A temperature adjustment method of an electronic device is also provided.Type: GrantFiled: April 20, 2021Date of Patent: July 19, 2022Assignee: ASUSTEK COMPUTER INC.Inventors: Yi-Ching Chen, Chia-Feng Yang, Chia-Lei Yu
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Publication number: 20220130343Abstract: An electronic device and a display image compensation method thereof are provided. The display image compensation method includes: receiving a first image signal and a second image signal sequentially at different time points, and displaying the first image signal by using a display unit; calculating current temperature information according to a display time length of the first image signal on the display unit and pixel data of the first image signal, and calculating a variation between the current temperature information and reference temperature information; and generating pixel compensation data corresponding to the current temperature information when the variation is greater than a preset value, compensating the second image signal according to the pixel compensation data, and outputting the compensated second image signal to the display unit.Type: ApplicationFiled: October 15, 2021Publication date: April 28, 2022Inventors: Yi-Ching Chen, Chin-An Tseng, Chia-Lei Yu
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Publication number: 20210343259Abstract: An electronic device is provided in this disclosure. The electronic device includes a display panel and a processor. The processor is electrically connected to the display panel. The processor receives image data and calculates a display area occupied by the image data on the display panel according to the image data. Then, the processor adjusts a backlight current value of the display panel according to the display area and an area-current relationship, to adjust the brightness of the display panel. In this way, the brightness of the display panel is consistent when the display panel displays images of different areas. The disclosure also provides a brightness adjustment method of an electronic device.Type: ApplicationFiled: April 16, 2021Publication date: November 4, 2021Inventors: Chia-Feng Yang, Yi-Ching Chen, Chia-Lei Yu
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Publication number: 20210343250Abstract: An electronic device is provided, including a display panel and a processor. The display panel is configured to display image data and includes a backlight module, and the processor is electrically connected to the display panel. The processor averages current values of the backlight module corresponding to the image data in a first time period, to generate an average current value, and compares the average current value with a current threshold. When the average current value is greater than the current threshold, the processor generates an adjusted maximum current value, and correspondingly reduces current values of the backlight module in a second time period according to the adjusted maximum current value, to reduce a temperature of the electronic device. A temperature adjustment method of an electronic device is also provided.Type: ApplicationFiled: April 20, 2021Publication date: November 4, 2021Inventors: Yi-Ching Chen, Chia-Feng Yang, Chia-Lei Yu
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Patent number: 11056078Abstract: A multi-screen color correction method and an electronic device are provided. The multi-screen color correction method is adapted with an electronic device with at least two display panels, and includes the following steps: obtaining image characteristics of test images displayed on the display panels respectively; performing a parameter operation on the image characteristics separately to obtain image correction parameters correspondingly; correcting colors of the display panels respectively according to the image correction parameters; obtaining luminance characteristics of the display panels by calculating based on the image correction parameters; and adjusting the luminance of the display panels according to the luminance characteristics.Type: GrantFiled: May 22, 2020Date of Patent: July 6, 2021Assignee: ASUSTEK COMPUTER INCInventors: Yi-Han Huang, Chin-An Tseng, Hung-Wen Chang, Yi-Han Tu, Yung-Ming Huang, Chia-Lei Yu
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Publication number: 20200388243Abstract: A multi-screen color correction method and an electronic device are provided. The multi-screen color correction method is adapted with an electronic device with at least two display panels, and includes the following steps: obtaining image characteristics of test images displayed on the display panels respectively; performing a parameter operation on the image characteristics separately to obtain image correction parameters correspondingly; correcting colors of the display panels respectively according to the image correction parameters; obtaining luminance characteristics of the display panels by calculating based on the image correction parameters; and adjusting the luminance of the display panels according to the luminance characteristics.Type: ApplicationFiled: May 22, 2020Publication date: December 10, 2020Inventors: Yi-Han Huang, Chin-An Tseng, Hung-Wen Chang, Yi-Han Tu, Yung-Ming Huang, Chia-Lei Yu
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Patent number: 10665185Abstract: A drive circuit for driving a display panel includes a dynamic refresh unit, a timer, and a black insertion drive unit. The dynamic refresh unit is configured to output a dynamic refresh signal, so as to control the display panel to display a plurality of frames in sequence. A frame time of each of the frames is adjusted according to the dynamic refresh signal. The timer is configured to compute a black insertion time signal. The black insertion drive unit is configured to output a black insertion drive signal according to the black insertion time signal, so as to perform black insertion on the frames.Type: GrantFiled: August 20, 2018Date of Patent: May 26, 2020Assignee: ASUSTEK COMPUTER INC.Inventors: Chin-An Tseng, Yi-Ching Chen, Mien-Mien Cheng, Chia-Lei Yu, Yung-Ming Huang
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Publication number: 20190066611Abstract: A drive circuit for driving a display panel includes a dynamic refresh unit, a timer, and a black insertion drive unit. The dynamic refresh unit is configured to output a dynamic refresh signal, so as to control the display panel to display a plurality of frames in sequence. A frame time of each of the frames is adjusted according to the dynamic refresh signal. The timer is configured to compute a black insertion time signal. The black insertion drive unit is configured to output a black insertion drive signal according to the black insertion time signal, so as to perform black insertion on the frames.Type: ApplicationFiled: August 20, 2018Publication date: February 28, 2019Inventors: Chin-An TSENG, Yi-Ching CHEN, Mien-Mien CHENG, Chia-Lei YU, Yung-Ming HUANG
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Patent number: 8451211Abstract: An exemplary dimming control apparatus of generating a dimming control signal for a display area is provided. The dimming control apparatus includes a data analysis module and an output module. The display area includes a plurality of pixels. The data analysis module receives a plurality of first pixel values corresponding to the pixels, respectively, where the first pixel values correspond to a first frame; in addition, the data analysis module derives a first characteristic value corresponding to the first frame according to a distribution of the first pixel values, and generates a first dimming value according to at least the first characteristic value. The output module is coupled to the data analysis module, and generates the dimming control signal corresponding to the first frame according to at least the first dimming value.Type: GrantFiled: January 13, 2010Date of Patent: May 28, 2013Assignee: Mediatek Inc.Inventor: Chia-Lei Yu
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Patent number: 8362702Abstract: A local dimming control method and apparatus of an edge-type backlight module are provided. The edge-type backlight module has a plurality of backlight units positioned at at least one side of a display area. The local dimming control apparatus includes: a configuration unit, for dividing the display area into a plurality of display blocks; and a local dimming control unit, coupled to the configuration unit, for setting respective backlight intensities of the display blocks through controlling a plurality of luminance settings of the backlight units. The local dimming control method includes: dividing the display area into a plurality of display blocks; and performing a local dimming control operation to set respective backlight intensities of the display blocks through controlling a plurality of luminance settings of the backlight units.Type: GrantFiled: January 28, 2010Date of Patent: January 29, 2013Assignee: Mediatek Inc.Inventors: Chia-Lei Yu, Tzueng-Yau Lin
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Publication number: 20120256957Abstract: An image processing method includes: deriving a plurality of first data portions from an original data of a first input image, wherein the first data portions correspond to a plurality of partial image areas within the first input image respectively; performing a plurality of scaling operations upon the first data portions respectively, and accordingly generating a plurality of first processed data portions; and outputting a plurality of display data portions through a plurality of channels respectively, wherein the display data portions are derived from at least the first processed data portions respectively.Type: ApplicationFiled: April 10, 2011Publication date: October 11, 2012Inventors: Sau-Kwo Chiu, Te-Hao Chang, Chia-Lei Yu
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Publication number: 20110181202Abstract: A local dimming control method and apparatus of an edge-type backlight module are provided. The edge-type backlight module has a plurality of backlight units positioned at least one side of a display area. The local dimming control apparatus includes: a configuration unit, for dividing the display area into a plurality of display blocks; and a local dimming control unit, coupled to the configuration unit, for setting respective backlight intensities of the display blocks through controlling a plurality of luminance settings of the backlight units. The local dimming control method includes: dividing the display area into a plurality of display blocks; and performing a local dimming control operation to set respective backlight intensities of the display blocks through controlling a plurality of luminance settings of the backlight units.Type: ApplicationFiled: January 28, 2010Publication date: July 28, 2011Inventors: Chia-Lei Yu, Tzueng-Yau Lin
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Publication number: 20110169852Abstract: An exemplary dimming control apparatus of generating a dimming control signal for a display area is provided. The dimming control apparatus includes a data analysis module and an output module. The display area includes a plurality of pixels. The data analysis module receives a plurality of first pixel values corresponding to the pixels, respectively, where the first pixel values correspond to a first frame; in addition, the data analysis module derives a first characteristic value corresponding to the first frame according to a distribution of the first pixel values, and generates a first dimming value according to at least the first characteristic value. The output module is coupled to the data analysis module, and generates the dimming control signal corresponding to the first frame according to at least the first dimming value.Type: ApplicationFiled: January 13, 2010Publication date: July 14, 2011Inventor: Chia-Lei Yu
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Publication number: 20060274378Abstract: A color image enhancement apparatus has a color attribute interpreter and a color attribute adjuster. The color attribute interpreter generates an adjust signal according to a Hue, a Saturation and a Brightness of a pixel data. Of the adjust signal, each adjustment for each of the Hue, the Saturation and the Brightness is determined by all of the Hue, the Saturation and the Brightness of the pixel data. The color attribute adjuster is connected to the color attribute interpreter. The color attribute adjuster receives the adjust signal and adjusts the transformed color attribute according to the adjust signal.Type: ApplicationFiled: June 5, 2006Publication date: December 7, 2006Inventors: Chia-Lei Yu, Hsu-Huang Cheng, Tsorng-Yang Mei, Ming-Chang Chuang
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Publication number: 20060187182Abstract: Several display regions are defined on a display panel, and each display region has its panel characteristic data. A pixel data is received and the determined display region of the pixel data is determined. The pixel data is calibrated according to the panel characteristic data of the determined display region, and then the calibrated pixel data is transmitted to the display panel.Type: ApplicationFiled: February 16, 2006Publication date: August 24, 2006Inventors: Chia-Lei Yu, Chih-Hsiung Hsu, Ming-Chang Chuang
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Publication number: 20060114266Abstract: A processor and a related method for adjusting color attributes of pixels are introduced. The method of the present invention includes transforming the color attributes of a first format having no independent luminance signal to color attributes of a second format having an independent luminance signal, and adjusting the color attributes of the second format such that the luminance signal can be processed individually and directly. The processor of the present invention includes an examining unit for examining color attributes of pixels, a transforming unit coupled to the examining unit for transforming the color attributes of pixels of a first format to a second format that comprises an independent luminance signal, an adjusting unit coupled to the transforming unit for adjusting color attributes of pixels, and an inverse-transforming unit coupled to the adjusting unit for transforming the color attributes of pixels of the second format to the first format.Type: ApplicationFiled: September 23, 2005Publication date: June 1, 2006Inventors: Tsorng-Yang Mei, Chia-Lei Yu, Hsu-Huang Cheng
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Publication number: 20060061587Abstract: A processor and a related method for adjusting color attributes of pixels are introduced. The method includes examining color attributes of pixels within a range in an image, examining color attributes of a first number of pixels around a first pixel when color attributes of the first pixel conform to a predetermined range, and adjusting the color attributes of the first pixel according to a predetermined rule when color attributes of a second number of pixels among the first number of pixels conform to the predetermined range. The claimed method differentiates the correct image signals from the noise by examining color attributes of surrounding pixels, and only applies adjustment to the correct image signals, avoiding making unnecessary adjustments to the noise signals.Type: ApplicationFiled: August 12, 2005Publication date: March 23, 2006Inventors: Chia-Lei Yu, Tsorng-Yang Mei
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Patent number: 6631968Abstract: A printing device includes a print unit for printing data. In each printing procedure, the printer separates at least a printing division from a path that the print unit passes through in the printing procedure and determines if the path includes a non-printing division according to the print data. The printer controls the print unit to move at a first velocity and print the document when the print unit passes through the printing division. If the path includes a non-printing division, the printer controls the print unit to stop printing the document and to move at a second velocity within the non-printing division when the print unit passes through the non-printing division.Type: GrantFiled: November 29, 2001Date of Patent: October 14, 2003Assignee: Benq CorporationInventors: Chien-Hsing Tang, Chia-Lei Yu, Chien-Hsien Ho