Patents by Inventor Xiaoping Tan
Xiaoping Tan 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: 9990074Abstract: A driving circuit for touch screen, a touch screen, and an electronic terminal are disclosure. The driving circuit for touch screen comprises: a control circuit, used for generating and outputting a scanning signal and a data selection signal according to a position of an electrode to be driven; and a data selection circuit, an input end thereof being connected with said control circuit, output ends thereof each being connected with a corresponding scanning end of the touch screen, wherein the data selection circuit is configured to turn on or turn off a connection between an input end thereof and an output end corresponding to the electrode to be driven according to said data selection signal. In the driving circuit, the influence on the following detection of the touch points generated by the attenuation of the scanning signal during transmission process can be reduced effectively, so that the reliability and accuracy of the detection result can be ensured.Type: GrantFiled: January 20, 2015Date of Patent: June 5, 2018Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Yucheng Lu, Xiaoping Tan, Xiang Yang
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Patent number: 9978334Abstract: A present disclosure provides a driving method for a liquid crystal display panel having steps of: the control chip simultaneously outputs a first selecting signal on a first voltage level, a second selecting signal on the first voltage level and a third selecting signal on the first voltage level to control the first transistors, the second transistors and the third transistors connecting between the buffers and each pixel column to be turned on; the buffers output a pre-charge signal to charge the sub-pixel units in each pixel column to the pre-charge voltage. Further, the present disclosure also provides a liquid crystal display device. The driving method for a liquid crystal display panel is effectively reduces the power consumption of the liquid crystal display device.Type: GrantFiled: September 9, 2015Date of Patent: May 22, 2018Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd, Wuhan China Star Optoelectronics Technology Co., LtdInventors: Chunpeng Guo, Jiehui Qin, Xiaoping Tan
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Publication number: 20180113555Abstract: A touch driving circuit and a touch sensitive display panel are provided. The touch driving circuit is disposed on a corresponding touch sensitive display panel. The touch driving circuit includes a touch driving chip, driving signals encoders, driving lines, sensing lines, driving wires, and sensing wires. Preliminary touch driving signals herein include touch data signals and touch clock signals, and the driving signals encoders convert the touch data signals into the touch driving signals according to the touch clock signals.Type: ApplicationFiled: September 18, 2015Publication date: April 26, 2018Inventors: Man LI, Xiaoping TAN, Xingling GUO
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Publication number: 20180108319Abstract: A driving circuit for a display panel is disclosed. The driving circuit includes at least a driving signal line connected to a display driving signal transmission unit delivering display driving signal produced by the display driving signal transmission unit to sub-pixels of the display panel through the driving signal line; and a number of data signal lines connected to a display data provision unit delivering display data signal produced by the display data provision unit to the sub-pixels. For each subset of the sub-pixels that are of a same component color, at least two data signal lines, starting from different points of time, deliver display data signal to the subset of sub-pixels that are of the same component color. The driving circuit effectively resolves glitches to input signal resulted from heavy transient load to the input signal.Type: ApplicationFiled: May 12, 2016Publication date: April 19, 2018Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventors: Qingcheng ZUO, Xiaoping TAN, Chun-hung HUANG
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Publication number: 20180061334Abstract: The present invention provides a method of raising a pure color image brightness of four primary colors, employed to raise a display brightness of a four primary colors display panel as showing a pure color image, and the method comprises: deactivating a W pixel of the display panel and changing gamma values of a R pixel, a G pixel, a B pixel from a first predetermined values to a second predetermined value; and activating the W pixel, and adjusting a gray scale image of the entire display panel to be a first predetermined value. The present invention further provides a display panel and a display. The display panel, the display and the method of the present invention can raise the display brightness of the display panel as showing the pure color image.Type: ApplicationFiled: January 14, 2016Publication date: March 1, 2018Applicant: Wuhan China Star Optoelectronics Technology Co. Ltd.Inventors: Wei CHEN, Chun-hung HUANG, Xiaoping TAN, Tingting ZHANG
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Patent number: 9905186Abstract: The present invention discloses a liquid crystal panel. The panel includes a display area that includes an array of pixel units formed thereon, a source controller, a gamma voltage control section, a gate controller, a chamfer voltage control section, and an image inspection section. The image inspection section classifies images into n classes according to ranking of grey level. The chamfer voltage control section is operated in response to the class of an image to control one of the n chamfer voltage circuits to supply the chamfer voltage to the gate controller and the gamma voltage control section is operated in responses to the class of the image to control one of the n gamma voltage circuits to supply the gamma voltage to the source controller, where n is an integer greater than 1. The present invention also discloses a driving method for the liquid crystal panel and a liquid crystal display including the liquid crystal panel.Type: GrantFiled: November 18, 2014Date of Patent: February 27, 2018Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Wenqin Zhao, Yu-yeh Chen, Xiaoping Tan
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Patent number: 9898943Abstract: The present disclosure provides a liquid crystal display module, which includes a liquid crystal display panel and a driver integrated circuit, wherein the liquid crystal display panel includes a testing pad, a first pad and a second pad, the first pad includes a first sub pad and a second sub pad which are separately disposed, the second sub pad is electrically connected to the testing pad, the driver integrated circuit includes at least two third pads, the third pads are respectively bonded to the first pad and the second pad; the first sub pad and the second sub pad are commonly bonded to one of the third pads, so as to achieve a short circuit between the first sub pad and the second sub pad. In the liquid crystal display module of the present disclosure, the space occupied by the bonding area is small.Type: GrantFiled: December 30, 2015Date of Patent: February 20, 2018Assignee: Wuhan China Star Optoelectronics Technology Co., LtdInventors: Xingling Guo, Jiehui Qin, Xiaoping Tan
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Patent number: 9886890Abstract: A display device and a method for displaying an image thereof are disclosed. The display device includes a display panel, a gray scale voltage output circuit, a common voltage output circuit and a control circuit. The display panel, according to a first gray scale voltage signal and a first common voltage signal, display an image; the control circuit is used for controlling the gray scale voltage output circuit and the common voltage output circuit to output a second gray scale voltage signal and a second common voltage to the display panel when at a predetermined time to display another image. The present invention can cause the blink rate to be maintained over time at a relatively stable range.Type: GrantFiled: October 9, 2015Date of Patent: February 6, 2018Assignees: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yucheng Lu, Xiang Yang, Xiaoping Tan
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Patent number: 9875680Abstract: The present invention relates to a method and apparatus for generating gray scale adjustment voltages and a panel driver circuit using the same. With the method provided in the invention, said apparatus for generating gray scale adjustment voltages generates a plurality of gray-scale reference voltage groups at a given time interval T0, and provides them for, such as a data driver circuit for adjusting gray scale of pictures by means of the reference gray-scale voltages, wherein values of the gray-scale reference voltages in each gray-scale reference voltage group are different from one another, and the time interval T0 need to be less or equal to a quotient from the displaying time in each frame divided by the product of the number of pixels in the vertical direction of a display screen and the number of gray-scale reference voltage groups.Type: GrantFiled: January 24, 2014Date of Patent: January 23, 2018Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Xiaoping Tan, Yong Zhang
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Patent number: 9865221Abstract: A voltage regulation circuit is provided, including a reverse processing module for processing a first initial voltage of a common voltage generating module so as to obtain a reverse voltage of AC voltage; and an integration module for regulating the first initial voltage according to the reverse voltage of the AC voltage so as to make a liquid crystal drive voltage equal to a preset value. The liquid crystal drive voltage is a difference value of between a second initial voltage and the first initial voltage which is regulated.Type: GrantFiled: September 8, 2015Date of Patent: January 9, 2018Assignees: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Man Li, Xiaoping Tan, Zhenzhou Xing
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Patent number: 9839122Abstract: The disclosure is related to a flexible printed circuit board. The flexible printed circuit board comprises a connecting area and a plurality of gold fingers disposed inside the connecting area, wherein the distances of the gold fingers are different. The disclosure is further related to a liquid crystal display. By the above manner, the disclosure is able to change the distances between the adjacent gold fingers to increase the number of the gold fingers without changing the size of the flexible printed circuit board so as to solve the impedance matching problem of the gold fingers of the flexible printed circuit board, and in the meanwhile to increase the assembling yield rate of the flexible printed circuit board.Type: GrantFiled: January 12, 2015Date of Patent: December 5, 2017Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Hongrui Cao, Xiaoping Tan
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Publication number: 20170345379Abstract: The present disclosure relates to a backlight control method of LCDs. The method includes dividing an effective display area of the LCD into a plurality of sub-display areas along a predetermined direction, obtaining an average brightness of display images of each of the sub-display areas, and adjusting a backlight brightness of the LCD in accordance with the average brightness of the display images of each of the sub-display areas. As such, the backlight brightness of the LCD within each of image display periods is compatible with the average brightness of the displayed images of each of the sub-display areas. The present disclosure also relates to a LCD and the backlight control method thereof. The effective display area of the LCD is divided into a plurality of display areas.Type: ApplicationFiled: July 29, 2016Publication date: November 30, 2017Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventors: Xingling GUO, Xiaoping TAN, Jiehui QIN
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Publication number: 20170263165Abstract: The present disclosure provides a liquid crystal display module, which includes a liquid crystal display panel and a driver integrated circuit, wherein the liquid crystal display panel includes a testing pad, a first pad and a second pad, the first pad includes a first sub pad and a second sub pad which are separately disposed, the second sub pad is electrically connected to the testing pad, the driver integrated circuit includes at least two third pads, the third pads are respectively bonded to the first pad and the second pad; the first sub pad and the second sub pad are commonly bonded to one of the third pads, so as to achieve a short circuit between the first sub pad and the second sub pad. In the liquid crystal display module of the present disclosure, the space occupied by the bonding area is small.Type: ApplicationFiled: December 30, 2015Publication date: September 14, 2017Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.Inventors: Xingling GUO, Jiehui QIN, Xiaoping TAN
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Patent number: 9761192Abstract: The present application provides a method and display apparatus for improving uniformity of displayed image, The method comprises inputting a first image signal to a display apparatus; compensating the first image signal in accordance with an image compensation data to obtain a third image signal, wherein the image compensation data is an amount of shift in a voltage of a common electrode of an array substrate of the display apparatus determined in accordance with a difference value between a grey level information of the first image signal and the grey level information of an original second image signal corresponding to the first image signal; and displaying the third image signal. Through the method above, the present invention effectively improves the uniformity of the displayed image without decreasing the displayed brightness of the image.Type: GrantFiled: January 5, 2015Date of Patent: September 12, 2017Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Man Li, Feilin Ji, Xiaoping Tan
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Publication number: 20170243528Abstract: A display device includes a first switching unit conducting data signals of a first polarity to the first sub-pixel upon first enabling signal, a second switching unit conducting data signals of first polarity to the sixth sub-pixel upon second enabling signal, a third switching unit conducting data signals of first polarity to the seventh sub-pixel upon third enabling signal, a fourth switching unit conducting data signals of first polarity to the fourth sub-pixel upon fourth enabling signal, a fifth switching unit conducting data signals of second polarity to the fifth sub-pixel upon first enabling signal, a sixth switching unit conducting data signals of second polarity to the second sub-pixel upon second enabling signal, a seventh switching unit conducting data signals of second polarity to the third sub-pixel upon third enabling signal, and an eighth switching unit conducting data signals of second polarity to eighth sub-pixel upon fourth enabling signal.Type: ApplicationFiled: January 13, 2016Publication date: August 24, 2017Inventors: Feilin JI, Wei CHEN, Xiaoping TAN
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Patent number: 9740333Abstract: A detecting method and a manufacturing method of an embedded type touch panel are provided. The detecting method includes steps of: supplying first touch electrodes and second touch electrodes alternately arranged at least on a first direction with different voltages via corresponding touch-control wires to make display areas where the first touch electrodes are located and display areas where the second touch electrodes are located have different luminances, and at least determining neighboring first touch electrode and second touch electrode on the first direction whether are short-circuited or not according to the luminances of the display areas where the first touch electrodes are located and the luminances of the display areas where the second touch electrodes are located. By the above solution, the invention can simply and effectively realize a detection of touch panel.Type: GrantFiled: December 30, 2014Date of Patent: August 22, 2017Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Chun-hung Huang, Xiaoping Tan, Yujie Bai
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Publication number: 20170236487Abstract: A present disclosure provides a driving method for a liquid crystal display panel having steps of: the control chip simultaneously outputs a first selecting signal on a first voltage level, a second selecting signal on the first voltage level and a third selecting signal on the first voltage level to control the first transistors, the second transistors and the third transistors connecting between the buffers and each pixel column to be turned on; the buffers output a pre-charge signal to charge the sub-pixel units in each pixel column to the pre-charge voltage. Further, the present disclosure also provides a liquid crystal display device. The driving method for a liquid crystal display panel is effectively reduces the power consumption of the liquid crystal display device.Type: ApplicationFiled: September 9, 2015Publication date: August 17, 2017Applicants: Shenzhen China Star Optoelectrtonics Technology Co., Ltd., WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTDInventors: Chunpeng GUO, Jiehui QIN, Xiaoping TAN
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Publication number: 20170193882Abstract: A display device and a method for displaying an image thereof are disclosed. The display device includes a display panel, a gray scale voltage output circuit, a common voltage output circuit and a control circuit. The display panel, according to a first gray scale voltage signal and a first common voltage signal, display an image; the control circuit is used for controlling the gray scale voltage output circuit and the common voltage output circuit to output a second gray scale voltage signal and a second common voltage to the display panel when at a predetermined time to display another image. The present invention can cause the blink rate to be maintained over time at a relatively stable range.Type: ApplicationFiled: October 9, 2015Publication date: July 6, 2017Applicants: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Yucheng Lu, Xiang Yang, Xiaoping Tan
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Publication number: 20170186396Abstract: A voltage regulation circuit is provided, including a reverse processing module for processing a first initial voltage of a common voltage generating module so as to obtain a reverse voltage of AC voltage; and an integration module for regulating the first initial voltage according to the reverse voltage of the AC voltage so as to make a liquid crystal drive voltage equal to a preset value. The liquid crystal drive voltage is a difference value of between a second initial voltage and the first initial voltage which is regulated.Type: ApplicationFiled: September 8, 2015Publication date: June 29, 2017Inventors: Man LI, Xiaoping TAN, Zhenzhou XING
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Patent number: 9672776Abstract: A driving circuit for liquid crystal panels and the liquid crystal devices are disclosed. The driving circuit includes a source driver, and at least one selection circuit. A number of the selection circuit is the same with the number of rows of the sub-pixel cells. Each of buffer data output ends of the source driver respectively connect to an input end of one selection circuit. A first output end of each of the selection circuit connects to the sub-pixel cells in one row. A second output end of each of the selection circuit connects to the sub-pixel cells in another row. The sub-pixel cells connecting with the first input end are within the same pixel row combination having the same color. In this way, the power consumption of the source driver of the driving circuit is reduced.Type: GrantFiled: December 30, 2014Date of Patent: June 6, 2017Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Chunpeng Guo, Jiehui Qin, Xiaoping Tan