Patents by Inventor Yung-Chiang Cheng
Yung-Chiang Cheng 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: 20240098125Abstract: The present disclosure relates to a system, a method and a computer-readable medium for rendering a streaming on a user terminal. The method includes rendering the streaming in a first mode, receiving an environment parameter of the user terminal, receiving a timing when the user terminal closes the streaming, determining a threshold value of the environment parameter based on the timing the user terminal closes the streaming, receiving an updated environment parameter of the user terminal, and rendering the streaming in a second mode if the updated environment parameter meets the threshold value. The second mode includes fewer data objects than the first mode or includes a downgraded version of a data object in the first mode for the rendering. The present disclosure can customize the rendering mode for each user and maximize the satisfaction of viewing streaming for each user.Type: ApplicationFiled: November 29, 2023Publication date: March 21, 2024Inventors: Yung-Chi HSU, Chung-Chiang HSU, Shao-Yuan WU, Ming-Che CHENG, Ka Chon LOI
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Patent number: 9448604Abstract: A powered device is electronically connected to power sourcing equipment (PSE), to receive voltage signals from the PSE. The powered device comprises a rectifier unit, a recognition unit, a control unit, a converter and a powered circuit. The recognition unit identifies that the PSE is an Ethernet PSE or a DC PSE. The control unit controls whether the control unit output a negative voltage signal output by the rectifier unit, according to a positive voltage signal output by the rectifier unit and a identified result output by the recognition unit. The converter converts the negative voltage signal and the positive voltage signal to a working voltage of the powered circuit, to drive the powered circuit. To feed power by a single interface and identify that the PSE is the Ethernet PSE or the DC PSE, according to a simple circuit architecture.Type: GrantFiled: March 24, 2014Date of Patent: September 20, 2016Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Mao-Chang Chuang, Yung-Chiang Cheng
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Publication number: 20150108962Abstract: A powered device is electronically connected to power sourcing equipment (PSE), to receive voltage signals from the PSE. The powered device comprises a rectifier unit, a recognition unit, a control unit, a converter and a powered circuit. The recognition unit identifies that the PSE is an Ethernet PSE or a DC PSE. The control unit controls whether the control unit output a negative voltage signal output by the rectifier unit, according to a positive voltage signal output by the rectifier unit and a identified result output by the recognition unit. The converter converts the negative voltage signal and the positive voltage signal to a working voltage of the powered circuit, to drive the powered circuit. To feed power by a single interface and identify that the PSE is the Ethernet PSE or the DC PSE, according to a simple circuit architecture.Type: ApplicationFiled: March 24, 2014Publication date: April 23, 2015Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: MAO-CHANG CHUANG, YUNG-CHIANG CHENG
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Patent number: 8179356Abstract: An exemplary method for driving a liquid crystal display includes: dividing a frame into a first sub-frame period and a second sub-frame period; displaying a normal image in the first sub-frame period; and displaying a gray image in the second sub-frame period. The gray image includes a plurality of pixels, and some of the pixels are black, and each of the pixels is black at least one time in a predefined minimum period, the minimum period being at least two consecutive frames.Type: GrantFiled: April 14, 2008Date of Patent: May 15, 2012Assignee: Chimei Innolux CorporationInventor: Yung-Chiang Cheng
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Patent number: 7869676Abstract: An exemplary liquid crystal display (200) includes a plurality of gate lines (201), data lines (202), common lines (210), first pixel electrodes (204) and second pixel electrodes (214). Each of areas defined by one of the first pixel electrodes and an adjacent one of the second pixel electrodes is a pixel unit (208). Each pixel unit is driven by a first TFT (203) and a second TFT (213). The first thin film transistor and the second thin film transistor in each pixel unit are connected to a same one of the gate lines and a same one of the data lines, and to the first pixel electrode and the second pixel electrode respectively. A channel width/length ratio of the first thin film transistor is different from a channel width/length ratio of the second thin film transistor.Type: GrantFiled: November 10, 2006Date of Patent: January 11, 2011Assignee: Chimei Innolux CorporationInventors: Yung-Chiang Cheng, Hsin-Ming Chen
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Patent number: 7639914Abstract: An exemplary liquid crystal display (200) includes a plurality of gate lines (201), data lines (202), common lines (210), first pixel electrodes (204) and second pixel electrodes (214). Each of areas defined by one of the first pixel electrodes and an adjacent one of the second pixel electrodes is a pixel unit (208). Each pixel unit is driven by a first TFT (203) and a second TFT (213). The first thin film transistor and the second thin film transistor in each pixel unit are connected to a same one of the gate lines and a same one of the data lines, and to the first pixel electrode and the second pixel electrode respectively. A channel width/length ratio of the first thin film transistor is different from a channel width/length ratio of the second thin film transistor.Type: GrantFiled: November 10, 2006Date of Patent: December 29, 2009Assignee: Innolux Display Corp.Inventors: Yung-Chiang Cheng, Hsin-Ming Chen
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Publication number: 20090058777Abstract: An exemplary liquid crystal display device includes pixel units. Each pixel unit includes a first sub pixel unit and a second sub pixel unit. The first sub pixel unit is associated with one of three primary colors, and the second sub pixel unit is associated with one of three complementary colors of the three primary colors. An exemplary method for driving the liquid crystal display device is also provided.Type: ApplicationFiled: August 26, 2008Publication date: March 5, 2009Inventor: Yung-Chiang Cheng
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Publication number: 20080252586Abstract: An exemplary method for driving a liquid crystal display includes: dividing a frame into a first sub-frame period and a second sub-frame period; displaying a normal image in the first sub-frame period; and displaying a gray image in the second sub-frame period. The gray image includes a plurality of pixels, and some of the pixels are black, and each of the pixels is black at least one time in a predefined minimum period, the minimum period being at least two consecutive frames.Type: ApplicationFiled: April 14, 2008Publication date: October 16, 2008Inventor: Yung-Chiang Cheng
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Publication number: 20080143910Abstract: An exemplary liquid crystal display (LCD) includes two substrates (21), and a liquid crystal layer (22) sandwiched between the two substrates. One of the substrates includes a number of gate lines (201) parallel to each other, a number of data lines (202) parallel to each other and perpendicular to the gate lines, a number of pairs of first and second shield metal lines (206, 207), each first and second shield metal line arranged at two opposite sides of a data line; and a number of metal lines (2031) arranged between the corresponding second shield metal lines and the corresponding adjacent data lines. The data lines, the metal lines and the second shield metal lines define a plurality of thin film transistors (203), in which the data lines functioned as source electrodes, the metal lines functioned as the gate electrodes, and the second shield metal lines functioned as the drain electrodes.Type: ApplicationFiled: December 17, 2007Publication date: June 19, 2008Inventor: Yung-Chiang Cheng
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Publication number: 20080117159Abstract: An exemplary method for driving an LCD with an LCD panel and a plurality of light sources controlled by an inverter is provided. The liquid crystal panel includes a gate driving circuit, a timing controller, and a plurality of scanning lines. The method includes a: the timing controller controlling the gate driving circuit to generate scanning signals during a frame time period; step b: the timing controller controlling the inverter to successively turn on and turn off the light sources, when one of the light source is turned on, light beams emitted by the light source illuminating the liquid crystal panel to form a brightness region thereon, thereby the scanning signals being provided to the scan lines corresponding to the brightness region; when the light source is turned off, the scanning signals being provided to the scan lines corresponding to the brightness region again.Type: ApplicationFiled: November 21, 2007Publication date: May 22, 2008Inventor: Yung-Chiang Cheng
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Publication number: 20070147082Abstract: An exemplary backlight module (10) includes a light guide plate (12), a first light tube (14) and a second light tube (14) located adjacent to the light guide plate. Each of the light tubes includes a first electrode (142) configured to be electrically connected with a high voltage electricity source, and a second electrode (144) configured to be electrically connected with a low voltage electricity source. Either the first electrode of the first light tube is positioned adjacent to the second electrode of the second light tube, or, the first electrode of the first light tube is positioned at one side of the light guide plate and the second electrode of the second light tube is positioned at an opposite side of the light guide plate with the first electrode being directly across from the second electrode.Type: ApplicationFiled: December 19, 2006Publication date: June 28, 2007Inventors: Yu-Ju Hsu, Yung-Chiang Cheng
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Publication number: 20070132919Abstract: An exemplary backlight module (1) includes a reflective polarizer sheet (10), a diffusing sheet (11), and a reflective sheet (14). The reflective polarizer sheet includes a light incident surface (102), a light emitting surface (104) opposite to the light incident surface, and a plurality of prism structures (106) at the light emitting surface. The diffusing sheet is adjacent to the light incident surface of the reflective polarizer sheet. The reflective sheet is below the diffusing sheet. The backlight module has a high brightness and an improved light utilization ratio with a low cost and a reduced thickness.Type: ApplicationFiled: December 12, 2006Publication date: June 14, 2007Inventors: Yu-Ju Hsu, Yung-Chiang Cheng
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Publication number: 20070132899Abstract: A liquid crystal display panel includes a plurality of scanning lines, a plurality of storage capacitor lines, a plurality of data lines intersected with the scanning lines, a plurality of first and second thin film transistors (TFTs) located in the vicinity of a crossing of a corresponding one of the scanning lines and a corresponding one of the data lines, a plurality of first pixel electrodes, and a plurality of first storage capacitors respectively connected to the first TFT, a plurality of second pixel electrodes, and a plurality of second storage capacitors respectively connected to the second TFT. The capacitances of the first storage capacitors are different from those of the second storage capacitors.Type: ApplicationFiled: December 11, 2006Publication date: June 14, 2007Inventors: Yung-Chiang Cheng, Chin-Chang Chen
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Publication number: 20070126941Abstract: An exemplary liquid crystal display (200) includes a plurality of gate lines (221) and data lines (222). The gate and data lines are crossed each other cooperatively defining a plurality of pixel units, and each of the pixel unit includes a red, green, blue sub-pixel unit (230), a green sub-pixel unit, and a blue sub-pixel unit. The red, green, and blue sub-pixel unit includes a common electrode, a pixel electrode (224) and a storage capacitor (225) respectively. The common electrode and the pixel electrode in each sub-pixel unit cooperatively defining a liquid crystal capacitor (227) which is connected in parallel with the cooperative liquid crystal capacitor. A capacitance value of the storage capacitor of each of the other two of the red, green, and blue sub-pixel unit is different.Type: ApplicationFiled: December 1, 2006Publication date: June 7, 2007Inventor: Yung-Chiang Cheng
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Publication number: 20070103615Abstract: An exemplary liquid crystal display (200) includes a plurality of gate lines (201), data lines (202), common lines (210), first pixel electrodes (204) and second pixel electrodes (214). Each of areas defined by one of the first pixel electrodes and an adjacent one of the second pixel electrodes is a pixel unit (208). Each pixel unit is driven by a first TFT (203) and a second TFT (213). The first thin film transistor and the second thin film transistor in each pixel unit are connected to a same one of the gate lines and a same one of the data lines, and to the first pixel electrode and the second pixel electrode respectively. A channel width/length ratio of the first thin film transistor is different from a channel width/length ratio of the second thin film transistor.Type: ApplicationFiled: November 10, 2006Publication date: May 10, 2007Inventors: Yung-Chiang Cheng, Hsin-Ming Chen