Patents by Inventor Sheng-Wen Cheng
Sheng-Wen 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: 20150348500Abstract: A signal conversion method for a display image is provided. The signal conversion method includes: receiving an image data of the (N?1)th frame; converting the (N?1)th image data to obtain a luminance data; determining a signal tuning gain of an image data of Nth frame according to the image data of the (N?1)th frame, the luminance data and a backlight duty adjusting table; adjusting an image data of Nth frame according to the signal tuning gain of Nth frame so as to generate an output image data of Nth frame; and displaying pixels according to the output image data of Nth frame.Type: ApplicationFiled: December 17, 2014Publication date: December 3, 2015Inventors: Hui-Feng Lin, Sheng-Wen Cheng
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Publication number: 20150334888Abstract: A process apparatus capable of pushing a panel-shaped object includes a process apparatus and at least one panel-shaped object. The process apparatus includes a carrying fixture and a separating fixture. The carrying fixture has a top surface and a bottom surface opposite to each other and has at least one positioning pillar. The separating fixture has a pushing portion. The panel-shaped object has at least one positioning hole and is carried on the top surface. The positioning pillar is inserted into the positioning hole to position the panel-shaped object. The pushing portion is adapted to move from the bottom surface toward the top surface and protrude out of the top surface, such that the panel-shaped object is pushed up by the pushing portion to be separated from the carrying fixture. In addition, a process method adapted to the process apparatus capable of pushing a panel-shaped object is also provided.Type: ApplicationFiled: September 4, 2014Publication date: November 19, 2015Inventors: Hao-Chun Hsieh, Chang-Lung Chen, Sheng-Wen Cheng, Pi-Chiang Huang
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Patent number: 9183796Abstract: Provide a set of first RGB (red, green, blue) brightness levels of a set of pixels in a display panel. Generate a set of saturation levels according to the set of first RGB brightness levels. Generate a set of mapping ratios according to the set of saturation levels and the set of first RGB brightness levels. Generate a set of second RGB brightness levels according to the set of first RGB brightness levels and a minimum mapping ratio of the set of mapping ratios. Generate a set of RGBW (red, green, blue, white) brightness levels according to the set of second RGB brightness levels and a set of brightness levels of white sub-pixels of the set of RGBW brightness levels. And convert the set of RGBW brightness levels to generate a set of RGBW gray levels of the set of pixels.Type: GrantFiled: September 12, 2012Date of Patent: November 10, 2015Assignee: AU Optronics Corp.Inventors: Hui-Feng Lin, Sheng-Wen Cheng
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Publication number: 20150299382Abstract: A series of ladder-type multifused arenes (hexacyclic, heptacyclic and nonacyclic units) and the synthesizing methods thereof are provided. The ladder-type multifused arenes are copolymerized with various electron-deficient acceptor units to afford various p-type low-band gap conjugated copolymers.Type: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Applicant: NATIONAL CHIAO TUNG UNIVERSITYInventors: Chain-Shu HSU, Yen-Ju Cheng, Jhong-Sian Wu, Chiu--Hsiang Chen, Huan-Hsuan Chang, Yung-Lung Chen, Sheng-Wen Cheng
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Publication number: 20150284504Abstract: A synthesis method of a heterocyclic compound is disclosed. The synthesis method includes steps of: carrying out a McMurry coupling reaction on a first compound having a carbonyl group to form a second compound, wherein the second compound includes an alkyl group which is symmetrical to a symmetrical center, and carrying out a 6?-cyclization on the second compound to form a third compound.Type: ApplicationFiled: October 3, 2014Publication date: October 8, 2015Inventors: Yen-Ju Cheng, Sheng-Wen Cheng, De-Yang Chiou
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Publication number: 20150235587Abstract: A driving method for rendering subpixels of each pixel of a display is provided. The display has a plurality of first pixels and a plurality of second pixels. Each second pixel has a first color subpixel and a second color subpixel, but lacks a third color subpixel. Each first pixel has a second color subpixel and a third color subpixel, but lacks a first color subpixel. The first color subpixel, second color subpixel and third color subpixel are used to represent gray levels of a first color, a second color and a third color respectively. Processes of rendering the subpixels of each pixel are performed based on positions, saturations and brightness of neighboring pixels, such that quality of image displayed on the display could be ensured even though each first pixel lacks the first color subpixel and each second pixel lacks the third color subpixel.Type: ApplicationFiled: May 28, 2014Publication date: August 20, 2015Applicant: AU Optronics Corp.Inventors: Shang-Yu Su, Sheng-Wen Cheng
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Patent number: 9111478Abstract: A method of compensating the color gamut of a display includes establishing a plurality of color gamut boundaries of four color hues, generating m sets of original luminance, chrominance and hue values according to m sets of tricolor grey level values, adjusting the chrominance of n sets of luminance, chrominance and hue values of the m sets of luminance, chrominance and hue values exceeding the plurality of color gamut boundaries with four color hues to generate n sets of corrected luminance, chrominance and hue values, generating m sets of four color grey levels according to the n sets of corrected luminance, chrominance and hue values and (m?n) sets of uncorrected luminance, chrominance and hue values, and displaying images on the display according to the m sets of four color grey levels.Type: GrantFiled: March 4, 2013Date of Patent: August 18, 2015Assignee: AU Optronics Corp.Inventors: Hui Chu Ke, Sheng-Wen Cheng
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Patent number: 9096716Abstract: A series of ladder-type multifused arenes (hexacyclic, heptacyclic and nonacyclic units) and the synthesizing methods thereof are provided. The ladder-type multifused arenes are copolymerized with various electron-deficient acceptor units to afford various p-type low-band gap conjugated copolymers.Type: GrantFiled: November 27, 2013Date of Patent: August 4, 2015Assignee: National Chiao Tung UniversityInventors: Chain-Shu Hsu, Yen-Ju Cheng, Jhong-Sian Wu, Chiu-Hsiang Chen, Huan-Hsuan Chang, Yung-Lung Chen, Sheng-Wen Cheng
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Publication number: 20150185576Abstract: An active device substrate includes scan lines, data lines, a first pixel electrode, a second pixel electrode, a first transistor, and a second transistor. The (M?1)th scan line, the (M)th scan line, the (N?1)th data line, and the (N)th data line define a first sub-pixel area. The (L)th scan line, the (L+1)th scan line, the (N)th data line, and the (N+1)th data line define a second sub-pixel area. The first pixel electrode, the first transistor, and the second transistor are disposed in the first sub-pixel area, and at least one portion of the second pixel electrode is disposed in the second sub-pixel area. The first transistor is electrically connected to one of the scan lines, one of the data lines, and the first pixel electrode. The second transistor is electrically connected to one of the scan lines, one of the data lines, and the second pixel electrode.Type: ApplicationFiled: July 9, 2014Publication date: July 2, 2015Inventors: Yu-Chin CHU, Sheng-Wen CHENG
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Publication number: 20150181182Abstract: A method for controlling a display is provided. An RGB video signal is transformed into an RGBW video signal based on a human factor. The display has a plurality of pixels configured to display images according to the RGBW video signal, where each of the pixels has a red subpixel, a green subpixel, a blue subpixel and a white subpixel. According to the method, when brightness of a backlight module of the display is reduced to decrease energy consumption of the display, quality of the images of the display observed by users is still maintained within an acceptable range.Type: ApplicationFiled: December 11, 2014Publication date: June 25, 2015Inventors: Hui-Feng Lin, Sheng-Wen Cheng
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Patent number: 9024980Abstract: A method for converting input RGB data signals to output RGBW data signals for use in an OLED display is disclosed. In the OLED display, each pixel has three color sub-pixels in RGB and one W sub-pixel. Input RGB data signals in signal space are normalized and converted into input data in luminance space. A baseline adjustment level is determined from the input data and is used to compute baseline adjusted data in luminance space. After being converted from luminance space into signal space, baseline adjusted data in RGBW are represented by N binary bits presented to the four sub-pixels. To suit the color characteristics of the display, color-temperature correction to the output signals is also carried out. In luminance space, the maximum color-temperature corrected output data fall within the range of 0.4/k and 0.5/k, with k being the ratio of W sub-pixel area to the color sub-pixel area.Type: GrantFiled: March 14, 2013Date of Patent: May 5, 2015Assignee: AU Optronics CorporationInventors: Hui-Feng Lin, Sheng-Wen Cheng, Ming-Sheng Lai, Lu-Yao Wu
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Publication number: 20150070404Abstract: A method for adjusting saturation degree and a color adjusting system are provided. The method for adjusting saturation degree includes the following steps. A hue circle is divided into a plurality of hue regions, and each of the hue regions is divided into a plurality of saturation regions according to at least one saturation threshold. A plurality of first input saturation degrees of a first saturation region of a first hue region of the hue regions are weighted by a first weighting formula for obtaining a plurality of first output saturation degrees. A plurality of second input saturation degrees of a second saturation region of the first hue region of the hue regions are weighted by a second weighting formula for obtaining a plurality of second output saturation degrees. The first weighting formula is different from the second weighting formula.Type: ApplicationFiled: February 17, 2014Publication date: March 12, 2015Applicant: Au Optronics CorporationInventors: Hui Chu Ke, Sheng-Wen Cheng
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Patent number: 8913094Abstract: A pixel includes four sub-pixels. The pixel is used to receive a plurality of signal values to display an image. The signal values are N-bit signal values, and the largest value of the signal values is (2N?1). The method of displaying the image with the pixel includes providing three color signals, generating four transformation signals corresponding to the four sub-pixels according to the values of the three color signals, and using four output signals to display the image of the pixel when the color saturation value is not larger than a first predetermined value and a fourth transformation signal of the four transformation signals is larger than other three transformation signals of the four transformation signals.Type: GrantFiled: December 14, 2012Date of Patent: December 16, 2014Assignee: AU Optronics Corp.Inventors: Hui Chu Ke, Sheng-Wen Cheng, Wei-Chieh Sun, Ming-Sheng Lai
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Publication number: 20140298898Abstract: A testing apparatus and a testing method are disclosed. The testing apparatus has a testing assembly. The testing assembly includes a first plate body, a testing paper, and a second plate body. The first plate body has a plurality of pins; the testing paper includes a plurality of first through holes whose locations correspond to the plurality of pins. The second plate body connects with the testing paper and has a plurality of second through holes whose locations correspond to the first through holes for allowing the plurality of pins to pass through the corresponding through holes. A sprayer is located, beneath the second plate body and sprays flux onto the inner wall of each second through hole, and a plurality of wet marks are left on the testing paper for interpretation of the coating quality.Type: ApplicationFiled: September 23, 2013Publication date: October 9, 2014Applicant: Wistron CorporationInventors: Jun-Min YANG, Hao-Chun TSAI, Hsin-Lun TSAI, Sheng-Wen CHENG, Chia-Hsien LEE
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Publication number: 20140267442Abstract: A method for converting input RGB data signals to output RGBW data signals for use in an OLED display is disclosed. In the OLED display, each pixel has three color sub-pixels in RGB and one W sub-pixel. Input RGB data signals in signal space are normalized and converted into input data in luminance space. A baseline adjustment level is determined from the input data and is used to compute baseline adjusted data in luminance space. After being converted from luminance space into signal space, baseline adjusted data in RGBW are represented by N binary bits presented to the four sub-pixels. To suit the color characteristics of the display, color-temperature correction to the output signals is also carried out. In luminance space, the maximum color-temperature corrected output data fall within the range of 0.4/k and 0.5/k, with k being the ratio of W sub-pixel area to the color sub-pixel area.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: AU OPTRONICS CORPORATIONInventors: HUI-FENG LIN, SHENG-WEN CHENG, MING-SHENG LAI, LU-YAO WU
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Patent number: 8830252Abstract: A color-temperature-compensation (CTC) method and applications thereof are provided, and which includes determining intensities of weights of three colors in an inputted three-dimension color signal; if yes, performing a lookup table mechanism to find-out a first set of multi-primary-color (MPC) signal corresponding to the three colors with the same weights, and performing a digital-gamma-correction (DGC) to the first set of MPC signal for providing a first set of CTC signal accordingly; if no, performing the lookup table mechanism to find-out a second set of MPC signal corresponding to the three colors with different weights, and performing the DGC to the second set of MPC signal for providing a second set of CTC signal accordingly; and making at least one same color with the same intensity in the three colors with the same weights and in the three colors with different weights displaying on an MPC display have different brightness.Type: GrantFiled: December 8, 2010Date of Patent: September 9, 2014Assignee: Au Optronics CorporationInventors: Yen-Tao Liao, Sheng-Wen Cheng
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Publication number: 20140204008Abstract: Various arrangements of color sub-pixels in a group of pixels for use in a color display are disclosed. The same group of pixels is repetitively arranged in rows and columns in the color display. In particular, each group of pixels has four pixels arranged on the four quadrants of a rectangle or square. A pixel group may have two sub-pixels in R, two sub-pixels in G, two sub-pixels in B and two sub-pixels in W, but each of the pixels has two different color sub-pixels. In each of the four pixels in a pixel group, the two sub-pixels can be adjacent to each other along the column direction or along the row direction, but the two sub-pixels in at least one pixel are adjacent to each other along the column direction. A pixel group may have two pixels with R, G sub-pixels and two pixels in B.Type: ApplicationFiled: January 24, 2013Publication date: July 24, 2014Applicant: Au Optionics CorporationInventors: Hui Chu-Ke, Sheng-Wen Cheng
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Publication number: 20140163191Abstract: A series of ladder-type multifused arenes (hexacyclic, heptacyclic and nonacyclic units) and the synthesizing methods thereof are provided. The ladder-type multifused arenes are copolymerized with various electron-deficient acceptor units to afford various p-type low-band gap conjugated copolymers.Type: ApplicationFiled: November 27, 2013Publication date: June 12, 2014Applicant: Nation Chiao Tung UniversityInventors: Chian-Shu Hsu, Yen-Ju Cheng, Jhong-Sian Wu, Chiu-Hsiang Chen, Huan-Hsuan Chang, Yung-Lung Chen, Sheng-Wen Cheng
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Patent number: 8730273Abstract: In an exemplary RGBW display apparatus, a plurality of four-color image output signals and a plurality of mapping scale ratios are generated according to a plurality of three-color image input signals. Furthermore, a backlight output intensity outputted from a backlight module is dynamically adjusted according to the mapping scale ratios and a white color signal adjust ratio is generated. In addition, a white color signal in each of the four-color image output signals is adjusted to be an updated white color signal according to the white color signal adjust ratio.Type: GrantFiled: January 24, 2011Date of Patent: May 20, 2014Assignee: Au Optronics Corp.Inventors: Hui Chu-Ke, Sheng-Wen Cheng
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Publication number: 20140055502Abstract: A method of compensating the color gamut of a display includes establishing a plurality of color gamut boundaries of four color hues, generating m sets of original luminance, chrominance and hue values according to m sets of tricolor grey level values, adjusting the chrominance of n sets of luminance, chrominance and hue values of the m sets of luminance, chrominance and hue values exceeding the plurality of color gamut boundaries with four color hues to generate n sets of corrected luminance, chrominance and hue values, generating m sets of four color grey levels according to the n sets of corrected luminance, chrominance and hue values and (m?n) sets of uncorrected luminance, chrominance and hue values, and displaying images on the display according to the m sets of four color grey levels.Type: ApplicationFiled: March 4, 2013Publication date: February 27, 2014Applicant: AU OPTRONICS CORP.Inventors: Hui Chu Ke, Sheng-Wen Cheng