Patents by Inventor Chengcai Dong
Chengcai Dong 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: 20160086976Abstract: Disclosed are a display device and the manufacturing method thereof. In the display device, the pixel unit of the display substrate comprises: a gate line material layer, a transparent electrode layer, a semiconductor layer, and a metal layer; the semiconductor layer and the metal layer are disposed between the gate line material layer and the transparent electrode layer; the metal layer is located above the semiconductor layer. The present invention could cause the storage capacitor of the display device to be smaller, thereby reducing the RC delay of the scanning signal of the gate line.Type: ApplicationFiled: June 26, 2013Publication date: March 24, 2016Inventor: Chengcai Dong
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Patent number: 9240152Abstract: The present disclosure provides an array substrate and liquid crystal display panel, and a driving method thereof, wherein each pixel unit of the array substrate includes a compensation circuit unit. When proceeding in the direction of scanning and when there is a scanning signal on a scanning line related to a pixel unit in the next row of a present pixel unit, the compensation circuit of the present pixel unit works on a sub electrode of the present pixel unit, such that a ratio of the voltage difference between the sub electrode and a common electrode to the voltage difference between a main electrode and the common electrode during a positive polarity inversion driving period equals a ratio of the voltage difference between the sub electrode and the common electrode to the voltage difference between the main electrode and the common electrode during a negative polarity inversion driving period.Type: GrantFiled: January 17, 2014Date of Patent: January 19, 2016Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Chengcai Dong, Je-Hao Hsu
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Patent number: 9207374Abstract: A color filtering array substrate and the manufacturing method thereof are disclosed. The color filtering array substrate includes a glass substrate (20) having a display area and a non-display area, a first metallic layer above the glass substrate, an insulation layer (22) above the first metallic layer, a second metallic layer above the insulation layer (22), a color filtering layer (23) formed between the insulation layer (22) and the second metallic layer, and a transparent conductive layer above the second metallic layer. The first metallic layer is for forming a first peripheral metallic layer (21) in the non-display area and to form a first internal metallic layer in the display area. The second metallic layer is for forming a second peripheral metallic layer (26) in the non-display area and to form a second internal metallic layer in the display area.Type: GrantFiled: July 16, 2013Date of Patent: December 8, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chengcai Dong
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Patent number: 9122102Abstract: A patterned vertical alignment (PVA) pixel electrode is disclosed. The PVA pixel electrode includes a first electrode and a second electrode. The first and second electrodes form a pre-tilt angle with respect to a periphery of the pixel. By disposing unequal lengths of indium-tin oxide (ITO) gaps at a periphery of the first and second electrodes, a distance between the first and second electrodes gradually becomes shortened from the center of the pixel outwards. The ITO gaps which are disposed at the periphery of a thin film transistor (TFT)-array substrate and/or a color filter (CF) are adjusted for eliminating a fringe field effect in the present invention, which a transmittance on the pixel regions is improved and an effect of image display quality is enhanced.Type: GrantFiled: March 13, 2012Date of Patent: September 1, 2015Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xiaohui Yao, Jehao Hsu, Jing-feng Xue, Chengcai Dong
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Patent number: 9116403Abstract: A display panel includes a first substrate and a second substrate. The second substrate disposes opposite to the first substrate and has multiple data lines and multiple scan lines disposed as a matrix. The first substrate at least divides into a first region and a second region. The first region of the first substrate disposes correspondingly to the scan lines and/or data lines on the second substrate, and the second region of the first substrate is disposed correspondingly to a remaining region which is located outside the scan lines and/or data lines on the second substrate. The first region of the first substrate and the scan lines and/or data lines forms a non-capacitance or a low capacitance structure. Therefore, the present invention can reduce the capacitance generated by the scan lines and/or the data lines so as to reduce the signal delay.Type: GrantFiled: June 27, 2013Date of Patent: August 25, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Chengcai Dong
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Publication number: 20150179114Abstract: The present disclosure provides an array substrate and liquid crystal display panel, and a driving method thereof, wherein each pixel unit of the array substrate includes a compensation circuit unit. When proceeding in the direction of scanning and when there is a scanning signal on a scanning line related to a pixel unit in the next row of a present pixel unit, the compensation circuit of the present pixel unit works on a sub electrode of the present pixel unit, such that a ratio of the voltage difference between the sub electrode and a common electrode to the voltage difference between a main electrode and the common electrode during a positive polarity inversion driving period equals a ratio of the voltage difference between the sub electrode and the common electrode to the voltage difference between the main electrode and the common electrode during a negative polarity inversion driving period.Type: ApplicationFiled: January 17, 2014Publication date: June 25, 2015Inventors: Chengcai Dong, Je-Hao Hsu
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Patent number: 9057899Abstract: An array substrate and a liquid crystal panel are disclosed. Each of the pixel cells of the array substrate includes a voltage compensation circuit. When the scanning signals are inputted to the corresponding first scanning line of a farther pixel cell, the voltage compensation circuit of a current pixel cell operates on the second pixel electrode of the current pixel cell. As such, a ratio of a voltage difference between the second pixel electrode and the common electrode to the voltage difference between the first pixel electrode and the common electrode when the positive polarity is inversed is the same with the ratio when the negative polarity is inversed. In this way, the low color shift effect is enhanced.Type: GrantFiled: October 24, 2013Date of Patent: June 16, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Chengcai Dong
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Publication number: 20150138471Abstract: An array substrate including a plurality of pixel cells, at least one common electrode line, at least one data line, and at least one first scanning line and second scanning line parallel to the first scanning line is disclosed. The first scanning line and the second scanning line intersect with the data line. The pixel cell includes a first pixel electrode, a second pixel electrode, a first transistor, a second transistor, a third transistor, and a control circuit. In addition, a liquid crystal display is also disclosed. By adding one control circuit, the color shift effect in wide viewing angle is enhanced and the image sticking is eliminated.Type: ApplicationFiled: August 19, 2013Publication date: May 21, 2015Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.Inventor: Chengcai Dong
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Publication number: 20150070613Abstract: An array substrate and a liquid crystal panel are disclosed. Each of the pixel cells of the array substrate includes a voltage compensation circuit. When the scanning signals are inputted to the corresponding first scanning line of a farther pixel cell, the voltage compensation circuit of a current pixel cell operates on the second pixel electrode of the current pixel cell. As such, a ratio of a voltage difference between the second pixel electrode and the common electrode to the voltage difference between the first pixel electrode and the common electrode when the positive polarity is inversed is the same with the ratio when the negative polarity is inversed. In this way, the low color shift effect is enhanced.Type: ApplicationFiled: October 24, 2013Publication date: March 12, 2015Inventor: Chengcai Dong
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Publication number: 20150015835Abstract: A color filtering array substrate and the manufacturing method thereof are disclosed. The color filtering array substrate includes a glass substrate (20) having a display area and a non-display area, a first metallic layer above the glass substrate, an insulation layer (22) above the first metallic layer, a second metallic layer above the insulation layer (22), a color filtering layer (23) formed between the insulation layer (22) and the second metallic layer, and a transparent conductive layer above the second metallic layer. The first metallic layer is for forming a first peripheral metallic layer (21) in the non-display area and to form a first internal metallic layer in the display area. The second metallic layer is for forming a second peripheral metallic layer (26) in the non-display area and to form a second internal metallic layer in the display area.Type: ApplicationFiled: July 16, 2013Publication date: January 15, 2015Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chengcai Dong
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Publication number: 20150015469Abstract: The present invention provides a display panel and driving method thereof, and display device. The display panel includes an array substrate and a color filter substrate, disposed oppositely; the array substrate comprising a plurality of scan lines, disposed at intervals; a plurality of data line, disposed at intervals, and crossing over and isolated from the scan lines; and a plurality of pixel units, arranged in a matrix form, and driven by the scan lines and data lines; each of the pixel units further divided into at least two active areas; the color filter substrate includes at least two common electrodes, disposed correspondingly to the active areas, the at least two common electrodes applying common voltages independently. The present invention can eliminate the non-uniform luminance problem in display images and improve the display quality.Type: ApplicationFiled: July 9, 2013Publication date: January 15, 2015Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chengcai Dong
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Publication number: 20150002497Abstract: The present invention provides a liquid crystal display panel and liquid crystal display device. In liquid crystal display panel, each pixel unit in the first substrate includes first pixel electrode and second pixel electrode. Charging scan line and data line drive first and second pixel electrodes to display through first switch and second switch. Third switch is connected to discharging scan line. Input terminal of third switch is connected to first or second pixel electrode; output terminal of third switch is connected to discharging circuit. Second substrate includes first common electrode and second common electrode. First common electrode corresponds to first pixel electrode and provides first common voltage. Second common electrode corresponds to second pixel electrode and provides second common voltage. As such, the present invention can further improve the low color shift at large viewing angle and effectively reduce the image retention problem.Type: ApplicationFiled: July 2, 2013Publication date: January 1, 2015Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chengcai Dong
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Publication number: 20140354909Abstract: A display panel includes a first substrate and a second substrate. The second substrate disposes opposite to the first substrate and has multiple data lines and multiple scan lines disposed as a matrix. The first substrate at least divides into a first region and a second region. The first region of the first substrate disposes correspondingly to the scan lines and/or data lines on the second substrate, and the second region of the first substrate is disposed correspondingly to a remaining region which is located outside the scan lines and/or data lines on the second substrate. The first region of the first substrate and the scan lines and/or data lines forms a non-capacitance or a low capacitance structure. Therefore, the present invention can reduce the capacitance generated by the scan lines and/or the data lines so as to reduce the signal delay.Type: ApplicationFiled: June 27, 2013Publication date: December 4, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chengcai Dong
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Patent number: 8873007Abstract: A liquid crystal display device is disclosed, comprising a first substrate, a second substrate and a liquid crystal layer. The first substrate comprises gate lines and a first transparent electrode while the second substrate is provided with a second transparent electrode. Relative to the first substrate, the inner side of the second substrate is separated into a first zone and a second zone. The first zone is locations on the second substrate to which the gate lines correspond, and the second zone is located aside to the locations on the second substrate that correspond to the gate lines. The second transparent electrode is disposed in the second zone. The liquid crystal display device of the present invention is capable of reducing parasitic capacitance of gate lines preferably, enabling the signal delay to subside in the gate lines.Type: GrantFiled: December 19, 2011Date of Patent: October 28, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Chengcai Dong, Jehao Hsu, Jingfeng Xue, Xiaohui Yao
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Publication number: 20140146259Abstract: The present disclosure provides a liquid crystal display device, an array substrate, and a method for manufacturing the array substrate. The array substrate includes a glass substrate, gate scan lines formed on the glass substrate, and a pixel electrode. An edge of the pixel electrode has an overlapping region with the gate scan lines, and the pixel electrode and the gate scan lines form a parasitic capacitance in the overlapping region. The overlapping region between the pixel electrode and the gate scan lines is configured with at least one protection layer that reduces the parasitic capacitance.Type: ApplicationFiled: December 4, 2012Publication date: May 29, 2014Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTDInventors: Chengcai Dong, Jehao Hsu, Juanning Dang
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Publication number: 20140085173Abstract: The present invention discloses a driving circuit structure of a liquid crystal panel, which mainly comprises a liquid crystal panel. The liquid crystal panel has an edge of a gate driving circuit and an edge of a source driving circuit. The edge of the gate driving circuit is provided with a plurality of gate driving COFs (chip on film). In the present invention, by gradually increasing trace widths of trace portions of the gate driving COFs along a gate scanning direction, the intensity of output signals of the gate driving COFs can be identical. Hence, it can eliminate the phenomenon of apparent boundary line that is appeared between the gate driving COFs of the liquid crystal panel, so as to increase the display quality.Type: ApplicationFiled: October 8, 2012Publication date: March 27, 2014Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTDInventors: Chengcai Dong, Jehao Hsu
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Publication number: 20130335308Abstract: A liquid crystal display (LCD) panel is proposed. The LCD panel includes a plurality of scan lines, a plurality of data lines, and a plurality of matrix-arranged pixels. Each of the plurality of pixels includes a plurality of subpixels. Each of the plurality of subpixels is electrically connected to a corresponding scan line. The subpixels of each of the pixels are electrically connected to a data line. Each of the plurality of subpixels includes a subpixel electrode. The subpixel electrode belonging to an N+1 subpixel partially overlaps the scan line corresponding to an N subpixel for forming a storage capacitor belonging to the N+1 subpixel itself. By means of the above-mentioned method, both of the aperture ratio of the pixel and the transmittance of the LCD and are increased. Moreover, the cost of the LCD panel is reduced.Type: ApplicationFiled: June 18, 2012Publication date: December 19, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.Inventors: Je-hao Hsu, Xiaohui Yao, Chengcai Dong, Shyh-Feng Chen
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Publication number: 20130286331Abstract: The present invention discloses a liquid crystal display device and liquid crystal display module thereof. The liquid crystal display module includes a color filter substrate, a thin film transistor substrate and seal. The thin film transistor substrate and the color film substrate are disposed oppositely, and the seal is disposed between the thin film transistor substrate and the color film substrate. The color filter substrate comprises a first glass substrate and black matrix. The seal comprises a first end part contacting the color filter substrate. No black matrix is disposed between the first end part and the color filter substrate, and the first end part is disposed as a shade structure. The liquid crystal display module and liquid crystal display device of the present invention provide the advantages of convenience for seal curing, facilitating narrow border design, and avoiding aggravating drive signal delay.Type: ApplicationFiled: May 24, 2012Publication date: October 31, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Shyh-Feng Chen, Je-Hao Hsu, Ming-hung Shih, Chengcai Dong
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Publication number: 20130235317Abstract: A patterned vertical alignment (PVA) pixel electrode is disclosed. The PVA pixel electrode includes a first electrode and a second electrode. The first and second electrodes form a pre-tilt angle with respect to a periphery of the pixel. By disposing unequal lengths of indium-tin oxide (ITO) gaps at a periphery of the first and second electrodes, a distance between the first and second electrodes gradually becomes shortened from the center of the pixel outwards. The ITO gaps which are disposed at the periphery of a thin film transistor (TFT)-array substrate and/or a color filter (CF) are adjusted for eliminating a fringe field effect in the present invention, which a transmittance on the pixel regions is improved and an effect of image display quality is enhanced.Type: ApplicationFiled: March 13, 2012Publication date: September 12, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Xiaohui Yao, Jehao Hsu, Jing-feng Xue, Chengcai Dong
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Publication number: 20130155364Abstract: A method of reducing parasitic capacitance of liquid crystal display device is disclosed where the liquid crystal display device comprises a first substrate, a second substrate and a liquid crystal layer. The first substrate comprises data lines and a first transparent electrode, and the second substrate is provided with a second transparent electrode. The method comprises the following steps: A. by means of photolithography and patterning, the second transparent electrode is separated into a primary second transparent electrode and a secondary second transparent electrode; B. offering the secondary second transparent electrode the same signal to the relevant data line. The invention further relates to a liquid crystal display device and the parasitic capacitance in the data lines of the liquid crystal display device can be diminished.Type: ApplicationFiled: December 16, 2011Publication date: June 20, 2013Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO.,LTD.Inventors: Chengcai Dong, Jehao Hsu, Jingfeng Xue, Xiaohui Yao