Patents by Inventor Wan-Ching Tsai
Wan-Ching Tsai 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: 20240332319Abstract: An electronic device may include a substrate, an array of display pixels formed on the substrate, first conductive contacts on the substrate, second conductive contacts on the substrate, a flexible printed circuit that is attached to the first conductive contacts, a display driver integrated circuit that is attached to the second conductive contacts, and conductive traces that electrically connect the first conductive contacts to the second conductive contacts. A dielectric layer may cover at least the sidewalls of the conductive traces to protect the conductive traces from damage by an etchant. Subsequently, some or all of the dielectric layer may be removed to prevent damage caused by moisture ingress into the cladding layer.Type: ApplicationFiled: March 21, 2024Publication date: October 3, 2024Inventors: Gihoon Choo, Abbas Jamshidi Roudbari, Guanxiong Liu, Jae Won Choi, Kyounghwan Kim, Shyuan Yang, Sungki Lee, Ting-Kuo Chang, Tsung-Ting Tsai, Wan-Ching Hsu, Warren S Rieutort-Louis, Yishan Liu, Zhe Hua
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Patent number: 10929958Abstract: A method and an image processing device for image enhancement are proposed. The method includes the following steps. An input image is received. A curve set is applied on the input image to generate a resultant image, where the curve set includes a plurality pairs of weight functions and process functions, where a summation of a multiplication of the weight function and the process function in each of the pairs is zero, and where the weight function in each of the pairs is associated with low-pass filtering. An output image is generated according to the resultant image and the input image.Type: GrantFiled: November 15, 2019Date of Patent: February 23, 2021Assignee: Novatek Microelectronics Corp.Inventors: Wan-Ching Tsai, Shu-Chun Lin
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Patent number: 10516810Abstract: A method of performing gamut mapping on an input image for an image output device includes receiving the input image to analyze a color distribution of the input image; determining a protect range corresponding to a first percentage of color codes of the input image and a compression range corresponding to a second percentage of the color codes of the input image based on the color distribution of the input image; and moving at least one of the color codes of the input image outside the protect range of the color codes to the compression range by a compression algorithm to perform gamut mapping on the input image.Type: GrantFiled: May 30, 2018Date of Patent: December 24, 2019Assignee: NOVATEK Microelectronics Corp.Inventors: Chia-Jung Hsu, Wan-Ching Tsai, Chao-Wei Ho, Chih-Chia Kuo
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Patent number: 10419708Abstract: An image processing circuit and an image contrast enhancement method of the imaging processing circuit are provided. The image processing circuit includes an index generating unit, a data compensation unit, and a data gain unit. The index generating unit receives a plurality of pixel data of a first frame to provide a plurality of local curve indices corresponding to a plurality of display areas of a display panel. The data compensation unit selects parts of a plurality of gray-level transformation curves respectively corresponding to the pixel data according to the local curve indices, so as to regulate the pixel data and then provide a plurality compensated pixel data. The data gain unit determines a data gain according to a backlight duty cycle signal and regulates the compensated pixel data according to the data gain, so as to provide a plurality of enhanced pixel data.Type: GrantFiled: April 20, 2015Date of Patent: September 17, 2019Assignee: Novatek Microelectronics Corp.Inventors: Wan-Ching Tsai, Chih-Chia Kuo
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Publication number: 20180278808Abstract: A method of performing gamut mapping on an input image for an image output device includes receiving the input image to analyze a color distribution of the input image; determining a protect range corresponding to a first percentage of color codes of the input image and a compression range corresponding to a second percentage of the color codes of the input image based on the color distribution of the input image; and moving at least one of the color codes of the input image outside the protect range of the color codes to the compression range by a compression algorithm to perform gamut mapping on the input image.Type: ApplicationFiled: May 30, 2018Publication date: September 27, 2018Inventors: Chia-Jung Hsu, Wan-Ching Tsai, Chao-Wei Ho, Chih-Chia Kuo
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Patent number: 10019785Abstract: A method of performing luminance/brightness adjustment and gamut mapping to high dynamic range images for a display device includes receiving an input image to analyze an image distribution of the input image, generating a scene information of the input image according to the image distribution, and performing luminance/brightness adjustment and gamut mapping to the input image according to the scene information, to generate an output image corresponding to the input image, wherein the scene information is regarded as dynamic metadata of the input image.Type: GrantFiled: March 7, 2016Date of Patent: July 10, 2018Assignee: NOVATEK Microelectronics Corp.Inventors: Chia-Jung Hsu, Wan-Ching Tsai, Chao-Wei Ho, Chih-Chia Kuo
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Patent number: 9986200Abstract: A switching method of video setting for a video conversion system includes generating a static metadata change flag when a static metadata change event is detected, repeating an output video after the static metadata change flag is generated, updating a video setting according to a static metadata corresponding to an input video when the output video is repeated, and converting the input video into the output video according to the video setting to display the output video.Type: GrantFiled: May 11, 2017Date of Patent: May 29, 2018Assignee: NOVATEK Microelectronics Corp.Inventors: Wan-Ching Tsai, Chih-Chia Kuo, Shih-Sung Wen, Fu-Sheng Liang
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Publication number: 20170256039Abstract: A method of performing luminance/brightness adjustment and gamut mapping to high dynamic range images for a display device includes receiving an input image to analyze an image distribution of the input image, generating a scene information of the input image according to the image distribution, and performing luminance/brightness adjustment and gamut mapping to the input image according to the scene information, to generate an output image corresponding to the input image, wherein the scene information is regarded as dynamic metadata of the input image.Type: ApplicationFiled: March 7, 2016Publication date: September 7, 2017Inventors: Chia-Jung Hsu, Wan-Ching Tsai, Chao-Wei Ho, Chih-Chia Kuo
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Patent number: 9613409Abstract: An image converting method includes calculating a plurality of segment averages of pixel values in a plurality segments of an input image; acquiring the maximum among the segment averages as a first threshold; calculating a plurality of local averages of pixel values in adjacent segments of input image; acquiring the maximum among local averages as a second threshold; counting the number of pixel values exceeding first threshold in the segments as a plurality of first pixel counts and counting the number of pixel values exceeding second threshold in the segments as a plurality of second pixel counts; generating a specular map and a confidence according to the first pixel counts and the second pixel counts; mapping the input image according to the specular map, to generate an intermediate image; and blending the input image and the intermediate image according to the confidence, to generate an output image.Type: GrantFiled: February 2, 2016Date of Patent: April 4, 2017Assignee: NOVATEK Microelectronics Corp.Inventors: Wan-Ching Tsai, Chao-Wei Ho, Chia-Jung Hsu, Chih-Chia Kuo
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Publication number: 20160309112Abstract: An image processing circuit and an image contrast enhancement method of the imaging processing circuit are provided. The image processing circuit includes an index generating unit, a data compensation unit, and a data gain unit. The index generating unit receives a plurality of pixel data of a first frame to provide a plurality of local curve indices corresponding to a plurality of display areas of a display panel. The data compensation unit selects parts of a plurality of gray-level transformation curves respectively corresponding to the pixel data according to the local curve indices, so as to regulate the pixel data and then provide a plurality compensated pixel data. The data gain unit determines a data gain according to a backlight duty cycle signal and regulates the compensated pixel data according to the data gain, so as to provide a plurality of enhanced pixel data.Type: ApplicationFiled: April 20, 2015Publication date: October 20, 2016Inventors: Wan-Ching Tsai, Chih-Chia Kuo
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Publication number: 20150269904Abstract: An image processing device and a method thereof are provided, and said device includes a valid bits detector and a compensator. The valid bits detector is configured to detect valid bits of an image input signal thereby outputting a correcting coefficient correspondingly. The compensator is coupled to the valid bits detector to receive the correcting coefficient, bit-compensating for the image input signal according to the correcting coefficient, thereby outputting an image output signal correspondingly.Type: ApplicationFiled: May 30, 2014Publication date: September 24, 2015Applicant: Novatek Microelectronics Corp.Inventor: Wan-Ching Tsai