Patents by Inventor Ching-Tsun Chang
Ching-Tsun Chang 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: 11705052Abstract: The present application relates to a sub-pixel rendering method for a display panel, which determines sampling locations according to arrangement locations of the sub-pixels, converts an input image according to a human vision model for correspondingly generating an adjustment luminance data, and samples a plurality of adjustment luminance value of the adjustment luminance data according to the sampling locations. Thereby, corresponded target grayscale data is generated. Thus, the input image is prevented from distortion.Type: GrantFiled: June 1, 2022Date of Patent: July 18, 2023Assignee: ForceLead Technology Corp.Inventor: Ching-Tsun Chang
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Publication number: 20230141954Abstract: The present application relates to a sub-pixel rendering method for a display panel, which determines sampling locations according to arrangement locations of the sub-pixels, converts an input image according to a human vision model for correspondingly generating an adjustment luminance data, and samples a plurality of adjustment luminance value of the adjustment luminance data according to the sampling locations. Thereby, corresponded target grayscale data is generated. Thus, the input image is prevented from distortion.Type: ApplicationFiled: June 1, 2022Publication date: May 11, 2023Inventor: CHING-TSUN CHANG
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Publication number: 20230117350Abstract: The present application relates to a driving circuit for display panel, comprising a compensation module and a driving module. The compensation module generates a first compensation signal according to variation of a first displaying characteristic of a first image in a frame time. The driving module generates a first driving signal according to the first compensation signal for driving the display panel to display the first image in a first frame time. By avoiding excessive variation of displaying characteristics of the first image with time, the displaying quality may be improved. In addition, the compensation module generates a second compensation signal according to the difference between the first displaying characteristic of the first image and a second displaying characteristic of a second image. The driving module drives the display panel to display the second image in a second frame time according to the second compensation signal.Type: ApplicationFiled: June 1, 2022Publication date: April 20, 2023Inventor: CHING-TSUN CHANG
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Patent number: 9482926Abstract: A lens structure and a 3D display device having the same are provided. The lens structure has unit regions. Each unit region includes upper and lower substrates, an anisotropic birefringence medium, center electrodes, edge electrodes and at least one set of side electrodes. The upper and the lower substrates are disposed oppositely to each other. The anisotropic birefringence medium is located between the upper and lower substrates. The center electrodes, the edge electrodes and the at least one set of side electrodes are located on the upper and lower substrates. The edge electrodes are disposed corresponding to the center electrodes. The at least one set of side electrodes are disposed between the center electrodes and the edge electrodes. An electric field distribution is formed between the center electrodes, the edge electrodes and the at least one set of side electrodes, so that the anisotropic birefringence medium constitutes a Fresnel lens.Type: GrantFiled: October 15, 2014Date of Patent: November 1, 2016Assignee: Au Optronics CorporationInventors: I-Wei Chen, Hsueh-Fang Yeh, Sheng-Ju Ho, Cheng-Han Tsao, Ching-Tsun Chang, Chih-Yuan Huang
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Patent number: 9343023Abstract: A stereoscopic display and a driving method are disclosed herein. The stereoscopic display includes a sensor, a barrier cell, and a control unit. The sensor is configured to detect a user to generate a sensing signal. The barrier cell is configured to generate a 3D image with a 2D image. The barrier cell includes barrier pitches disposed in parallel. Each of the barrier pitches includes switchable barrier units. The control unit is configured to generate control signals to adjust the switchable barrier units according to the sensing signal, so as to make at least one of the switchable barrier units of each of barrier pitches form a shading zone, to make the switchable barrier units disposed at the two adjacent sides of the shading zone form a gray level zone, and to make the rest of the switchable barrier units in the same barrier pitch form a photic zone.Type: GrantFiled: April 22, 2014Date of Patent: May 17, 2016Assignee: AU OPTRONICS CORPORATIONInventors: Chiung-Liang Lin, Hsuan-I Wu, Ching-Tsun Chang, Jeng-Yi Huang
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Patent number: 9261704Abstract: A stereoscopic display including a display panel and a barrier panel is provided. The barrier panel is at one side of the display panel. The barrier panel includes first and second substrates, first and second patterned electrode layers, and a liquid crystal layer between the first and second patterned electrode layers. The first patterned electrode layer is on the first substrate, and includes first electrodes having a first line-width. A gap between the adjacent first electrodes is a first spacing, and a first pitch is a sum of the first spacing and pitch. The second patterned electrode layer is on the second substrate, includes second electrodes having the first line-width. The gap between the adjacent second electrodes is the first spacing, the first and second electrodes are staggered to each other, and a shift in a horizontal direction between the first and second electrodes is half of the first pitch.Type: GrantFiled: February 27, 2013Date of Patent: February 16, 2016Assignee: Au Optronics CorporationInventor: Ching-Tsun Chang
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Patent number: 9104034Abstract: A display apparatus includes a display panel, a polarization converting unit, a first micro-lens layer and a second micro-lens layer. The polarization converting unit is disposed on the display panel. The first micro-lens layer is disposed on the polarization converting unit and includes a plurality of first lenticular lenses parallel with and adjacent to each other. A first adjacent edge is formed between each two adjacent first lenticular lenses. The second micro-lens layer is disposed on the first micro-lens layer and includes a plurality of second lenticular lenses parallel with and adjacent to each other. A second adjacent edge is formed between each two adjacent second lenticular lenses. The first and second lenticular lenses are extended in a same direction and have a same width. There is an interval between an axis center line of each second lenticular lens and an axis center line of each first lenticular lens.Type: GrantFiled: October 17, 2013Date of Patent: August 11, 2015Assignee: AU OPTRONICS CORP.Inventor: Ching-Tsun Chang
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Publication number: 20150131013Abstract: A lens structure and a 3D display device having the same are provided. The lens structure has unit regions. Each unit region includes upper and lower substrates, an anisotropic birefringence medium, center electrodes, edge electrodes and at least one set of side electrodes. The upper and the lower substrates are disposed oppositely to each other. The anisotropic birefringence medium is located between the upper and lower substrates. The center electrodes, the edge electrodes and the at least one set of side electrodes are located on the upper and lower substrates. The edge electrodes are disposed corresponding to the center electrodes. The at least one set of side electrodes are disposed between the center electrodes and the edge electrodes. An electric field distribution is formed between the center electrodes, the edge electrodes and the at least one set of side electrodes, so that the anisotropic birefringence medium constitutes a Fresnel lens.Type: ApplicationFiled: October 15, 2014Publication date: May 14, 2015Inventors: I-Wei Chen, Hsueh-Fang Yeh, Sheng-Ju Ho, Cheng-Han Tsao, Ching-Tsun Chang, Chih-Yuan Huang
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Publication number: 20150092025Abstract: A stereo display device includes a display panel and a barrier panel. The display panel includes a plurality of sub-pixel units arranged in an array along an X-direction and a Y-direction. At least three sub-pixel units form a pixel unit. The barrier panel is located at one side of the display panel and includes a plurality of first electrodes, a plurality of second electrodes, and an optically anisotropic medium. An included angle between an extension direction of the first electrodes and the Y-direction is +?1, and ?1?0 degree. An included angle between an extension direction of the second electrodes and the Y-direction is ??2, and ?2?0 degree. The optically anisotropic medium is located between the first electrodes and the second electrodes.Type: ApplicationFiled: February 11, 2014Publication date: April 2, 2015Applicant: Au Optronics CorporationInventors: Ching-Tsun Chang, Ren-Wei Liao, Hsuan-I Wu
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Patent number: 8982047Abstract: At least one characteristic of an object is captured at a first instant and the at least one characteristic of the object is then captured at a second instant. A moving direction and a moving speed of the object are calculated according to the at least one characteristic of the object captured respectively at the first instant and the second instant. A left view image and a right view image are projected to the object and if the moving speed of the object is greater than a threshold, a center point of the left view image and the right view image deviates from a center line of the object.Type: GrantFiled: February 4, 2013Date of Patent: March 17, 2015Assignee: AU Optronics Corp.Inventors: Chiung-Liang Lin, Ching-Tsun Chang, Tien-Chien Liao
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Publication number: 20150054860Abstract: A stereoscopic display and a driving method are disclosed herein. The stereoscopic display includes a sensor, a barrier cell, and a control unit. The sensor is configured to detect a user to generate a sensing signal. The barrier cell is configured to generate a 3D image with a 2D image. The barrier cell includes barrier pitches disposed in parallel. Each of the barrier pitches includes switchable barrier units. The control unit is configured to generate control signals to adjust the switchable barrier units according to the sensing signal, so as to make at least one of the switchable barrier units of each of barrier pitches form a shading zone, to make the switchable barrier units disposed at the two adjacent sides of the shading zone form a gray level zone, and to make the rest of the switchable barrier units in the same barrier pitch form a photic zone.Type: ApplicationFiled: April 22, 2014Publication date: February 26, 2015Applicant: AU Optronics CorporationInventors: Chiung-Liang LIN, Hsuan-I WU, Ching-Tsun CHANG, Jeng-Yi HUANG
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Publication number: 20140132863Abstract: A display apparatus includes a display panel, a polarization converting unit, a first micro-lens layer and a second micro-lens layer. The polarization converting unit is disposed on the display panel. The first micro-lens layer is disposed on the polarization converting unit and includes a plurality of first lenticular lenses parallel with and adjacent to each other. A first adjacent edge is formed between each two adjacent first lenticular lenses. The second micro-lens layer is disposed on the first micro-lens layer and includes a plurality of second lenticular lenses parallel with and adjacent to each other. A second adjacent edge is formed between each two adjacent second lenticular lenses. The first and second lenticular lenses are extended in a same direction and have a same width. There is an interval between an axis center line of each second lenticular lens and an axis center line of each first lenticular lens.Type: ApplicationFiled: October 17, 2013Publication date: May 15, 2014Applicant: AU OPTRONICS CORP.Inventor: Ching-Tsun CHANG
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Publication number: 20140085182Abstract: At least one characteristic of an object is captured at a first instant and the at least one characteristic of the object is then captured at a second instant. A moving direction and a moving speed of the object are calculated according to the at least one characteristic of the object captured respectively at the first instant and the second instant. A left view image and a right view image are projected to the object and if the moving speed of the object is greater than a threshold, a center point of the left view image and the right view image deviates from a center line of the object.Type: ApplicationFiled: February 4, 2013Publication date: March 27, 2014Applicant: AU OPTRONICS CORP.Inventors: Chiung-Liang Lin, Ching-Tsun Chang, Tien-Chien Liao
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Publication number: 20140036173Abstract: A stereoscopic display including a display panel and a barrier panel is provided. The barrier panel is at one side of the display panel. The barrier panel includes first and second substrates, first and second patterned electrode layers, and a liquid crystal layer between the first and second patterned electrode layers. The first patterned electrode layer is on the first substrate, and includes first electrodes having a first line-width. A gap between the adjacent first electrodes is a first spacing, and a first pitch is a sum of the first spacing and pitch. The second patterned electrode layer is on the second substrate, includes second electrodes having the first line-width. The gap between the adjacent second electrodes is the first spacing, the first and second electrodes are staggered to each other, and a shift in a horizontal direction between the first and second electrodes is half of the first pitch.Type: ApplicationFiled: February 27, 2013Publication date: February 6, 2014Applicant: AU OPTRONICS CORPORATIONInventor: Ching-Tsun Chang