Patents by Inventor Shin-Tai Lo
Shin-Tai Lo 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: 9640476Abstract: A driving circuit and a pin output order arranging method are disclosed. The driving circuit includes (M*N) pins and an arranging module. A first pin˜an N-th pin of the (M*N) pins, a (N+1)-th pin˜an 2N-th pin of the (M*N) pins, . . . , a [(M?1)*N+1]-th pin˜a (M*N)-th pin of the (M*N) pins are arranged along a first direction in a specific distance spaced to form a first row of pins˜an M-th row of pins. The first row of pins˜the M-th row of pins are staggered along a second direction in a staggering way or an aligning way. M and N are integers larger than 1. The arranging module correspondingly arranges the pin output order of the (M*N) pins according to different application modes of the driving circuit.Type: GrantFiled: July 25, 2016Date of Patent: May 2, 2017Assignee: Raydlum Semiconductor CorporationInventors: Shin-Tai Lo, Cheng-Nan Lin, Shao-Ping Hung
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Publication number: 20170077024Abstract: A driving circuit and a pin output order arranging method are disclosed. The driving circuit includes (M*N) pins and an arranging module. A first pin ˜ an N-th pin of the (M*N) pins, a (N+1)-th pin ˜ an 2N-th pin of the (M*N) pins, . . . , a [(M?1)*N+1]-th pin ˜ a (M*N)-th pin of the (M*N) pins are arranged along a first direction in a specific distance spaced to form a first row of pins ˜ an M-th row of pins. The first row of pins ˜ the M-th row of pins are staggered along a second direction in a staggering way or an aligning way. M and N are integers larger than 1. The arranging module correspondingly arranges the pin output order of the (M*N) pins according to different application modes of the driving circuit.Type: ApplicationFiled: July 25, 2016Publication date: March 16, 2017Inventors: Shin-Tai LO, Cheng-Nan LIN, Shao-Ping HUNG
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Patent number: 8766896Abstract: A driving circuit for an LCD system is provided. The LCD system includes a common electrode, a display electrode, and a capacitor. An AC voltage output terminal of the driving circuit is coupled to the common electrode via the capacitor. The display electrode and a charging/discharging unit in the driving circuit are respectively coupled to the AC voltage output terminal through a switch. According to requirements to change the electrical polarity of the common electrode, a control unit in the driving circuit turns on/off the two switches respectively so as to charge or discharge the AC voltage output terminal.Type: GrantFiled: March 22, 2010Date of Patent: July 1, 2014Assignee: Raydium Semiconductor CorporationInventors: Jun-Ren Shih, Shin-Tai Lo, Hung Li
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Patent number: 8385034Abstract: The invention discloses an electrostatic discharge protection circuit suitable for an integrated circuit system. The integrated circuit system includes a first power terminal, a second power terminal, an internal circuit and a reset signal wiring. The electrostatic discharge protection circuit includes a first transistor and a second transistor. The first transistor has a first gate, a first electrode and a second electrode. The first gate is coupled to the first power-source. The first electrode is electrically connected to the second power-source. The second transistor has a second gate, a third electrode and a fourth electrode, which are electrically connected to the second electrode, the first power-source and the reset signal wiring respectively. When the integrated circuit system is under an electrostatic discharge condition, the first and the second transistors are switched on, so as to equalize the voltage level of the reset signal wiring to the voltage level of the first power terminal.Type: GrantFiled: August 5, 2010Date of Patent: February 26, 2013Assignee: Raydium Semiconductor CorporationInventor: Shin-Tai Lo
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Patent number: 8134647Abstract: The invention provides an image processing method and apparatus thereof. The white component data is extracted from the input R, G, B color data which are the base components of the input image data. A maximum value is extracted from the R, G, B color data and a parameter is generated based on the white component data and the maximum value. The R, G, B color data are multiplied by the parameter to obtain a multiplication result. Subtract the white component data from the R, G, B color data to obtain a subtraction result. The multiplication result and the subtraction result are added together to generate the output R, G, B color data. The output R, G, B color data and the white component data form an output image data with higher brightness.Type: GrantFiled: November 9, 2007Date of Patent: March 13, 2012Assignee: Wintek CorporationInventors: Ching-Fu Hsu, Shin-Tai Lo, Ruey-Shing Weng, Jyun-Sian Li
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Patent number: 8022924Abstract: A field sequential driving method includes the following steps. First, a liquid crystal display (LCD) including a display unit and a backlight unit is provided. The display unit includes several pixel units. Next, a white light source of the backlight unit is enabled during a first sub-frame period of a frame period of the LCD. Then, red and blue sub-pixel data are provided to drive a first sub-pixel and a second sub-pixel in the pixel unit during the first sub-frame period. Next, a green light source of the backlight unit is enabled during a second sub-frame period of the frame period. Thereafter, green sub-pixel data is provided to drive a third sub-pixel of the pixel unit during the second sub-frame period.Type: GrantFiled: December 3, 2007Date of Patent: September 20, 2011Assignee: Wintek CorporationInventors: Ruey-Shing Weng, Shin-Tai Lo, Fa-Chen Wu
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Patent number: 7924254Abstract: A backlight processing system and a method thereof are provided. The gray level values of pixels in an input frame signal are adjusted and the brightness thereof is decreased correspondingly. During gray level value adjustment, the gray level values of the pixels in dark regions are reduced, and the gray level values of the pixels in bright regions are increased. During backlight adjustment, first, statistics information on distribution of the gray level value versus the number of pixels is obtained according to the gray level distribution of the original frame. The number of pixels at each gray level is accumulated. When the accumulation value reaches a certain value, a reference signal is obtained. The brightness of the backlight is then adjusted according to the reference signal.Type: GrantFiled: November 12, 2007Date of Patent: April 12, 2011Assignee: Wintek CorporationInventors: Ching-Fu Hsu, Ruey-Shing Weng, Jyun-Sian Li, Shin-Tai Lo
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Patent number: 7916968Abstract: An adjusting apparatus for enhancing the contrast of an image and a method therefor are provided. The adjusting apparatus includes a mask processor, a brightness detecting unit, a brightness adjusting unit, a ratio calculating unit and a contrast enhancing unit. The mask processor retrieves a pixel matrix from an original image according to its mask dimension, and outputs a specific pixel corresponding to a specific position in the pixel matrix. Then, the brightness detecting unit, the brightness adjusting unit and the ratio calculating unit are coupled in series to process the image according to relations of each sub-pixel of the pixel matrix, so as to obtain an adjusting ratio. Thereby, the contrast enhancing unit multiplies the value of the adjusted specific pixel by the adjusting ratio to enhance the contrast of the image.Type: GrantFiled: November 21, 2007Date of Patent: March 29, 2011Assignee: Wintek CorporationInventors: Jyun-Sian Li, Shin-Tai Lo, Ruey-Sing Weng, Ching-Fu Hsu
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Patent number: 7903066Abstract: Gray scale distribution of an input image signal is obtained through statistics to determine the contrast characteristic of the input image signal. Based on the gray scale distribution, by a look up table, corresponding gamma setting values are derived and stored in a register. The register outputs the stored gamma setting values to a gray scale voltage generation circuit to adjust the gray scale voltage. Therefore, the display contrast and display quality are improved.Type: GrantFiled: November 9, 2007Date of Patent: March 8, 2011Assignee: Wintek CorporationInventors: Ruey-Shing Weng, Shin-Tai Lo, Ching-Fu Hsu, Jyun-Sian Li
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Publication number: 20110038084Abstract: The invention discloses an electrostatic discharge protection circuit suitable for an integrated circuit system. The integrated circuit system includes a first power terminal, a second power terminal, an internal circuit and a reset signal wiring. The electrostatic discharge protection circuit includes a first transistor and a second transistor. The first transistor has a first gate, a first electrode and a second electrode. The first gate is coupled to the first power-source. The first electrode is electrically connected to the second power-source. The second transistor has a second gate, a third electrode and a fourth electrode, which are electrically connected to the second electrode, the first power-source and the reset signal wiring respectively. When the integrated circuit system is under an electrostatic discharge condition, the first and the second transistors are switched on, so as to equalize the voltage level of the reset signal wiring to the voltage level of the first power terminal.Type: ApplicationFiled: August 5, 2010Publication date: February 17, 2011Inventor: Shin-Tai LO
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Publication number: 20110007052Abstract: A driving circuit for an LCD system is provided. The LCD system includes a common electrode, a display electrode, and a capacitor. An AC voltage output terminal of the driving circuit is coupled to the common electrode via the capacitor. The display electrode and a charging/discharging unit in the driving circuit are respectively coupled to the AC voltage output terminal through a switch. According to requirements to change the electrical polarity of the common electrode, a control unit in the driving circuit turns on/off the two switches respectively so as to charge or discharge the AC voltage output terminal.Type: ApplicationFiled: March 22, 2010Publication date: January 13, 2011Inventors: Jun-Ren Shih, Shin-Tai Lo, Hung Li
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Patent number: 7808497Abstract: An AMOLED driving circuit and driving method adds an additional switching transistor to a 2T1C driving circuit. An additional switching transistor is connected to the high voltage source, a scan line and a node connected a source terminal of a driving transistor of the 2T1C driving circuit and the light-emitting device. The additional switching transistor and an original switching transistor of the 2T1C driving circuit are activated when the scan line outputs high voltage. At the time, a low voltage of a PWM voltage is added to the high voltage source not to drive the driving transistor, and a storage capacitor stores a voltage of the image data signal. When the two switching transistors turn off and a high voltage of the PWM voltage is provided to the high voltage source, the driving transistor is driven to generate a driving current to the light-emitting device.Type: GrantFiled: November 14, 2006Date of Patent: October 5, 2010Assignee: Wintek CorporationInventors: Shin-Tai Lo, Wen-Tui Liao, Ching-Fu Hsu
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Patent number: 7656375Abstract: An image-processing device and method for enhancing the luminance and the image quality of display panels, the device and method includes a color distribution calculating unit which classifies the original image-color data, and then calculates the ratio of the color data in block B2 to all input image-color data. A control-variable generating unit determines the value of the converting-control variable and the value of the backlight luminance-control variable according to the ratio. The converting-control variable will be output to a numerical converting unit so as to convert the original image-color (RGB) data to the new image-color (R?G?B?W?) data. The backlight luminance-control variable will be output to a backlight luminance-control unit so as to control the backlight luminance.Type: GrantFiled: December 12, 2005Date of Patent: February 2, 2010Assignee: Wintek CorporationInventors: Shin-Tai Lo, Ruey-Shing Weng, Ching-Fu Hsu
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Publication number: 20090251193Abstract: A level shifter consisting of first to fifth transistors is provided. First ends of the first and second transistors are coupled to a first supply voltage. Control ends of third and fourth transistors respectively receive first and second input signals. First ends of the third and fourth transistors are respectively coupled to control ends of the second and first transistors, and are respectively coupled to second ends of the first and second transistors. Second ends of the third and fourth transistors are coupled to a second supply voltage. The first ends of the third and fourth transistors respectively output first and second output signals. A first end and a control end of the fifth transistor are coupled to the control ends of one and the other of the first and second transistors. A second end of the fifth transistor is coupled to the second supply voltage.Type: ApplicationFiled: November 6, 2008Publication date: October 8, 2009Applicant: RAYDIUM SEMICONDUCTOR CORPORATIONInventors: Shin-Tai Lo, Shao-Ping Hung
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Publication number: 20080211757Abstract: Gray scale distribution of an input image signal is obtained through statistics to determine the contrast characteristic of the input image signal. Based on the gray scale distribution, by a look up table, corresponding gamma setting values are derived and stored in a register. The register outputs the stored gamma setting values to a gray scale voltage generation circuit to adjust the gray scale voltage. Therefore, the display contrast and display quality are improved.Type: ApplicationFiled: November 9, 2007Publication date: September 4, 2008Applicant: WINTEK CORPORATIONInventors: Ruey-Shing Weng, Shin-Tai Lo, Ching-Fu Hsu, Jyun-Sian Li
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Patent number: 7406147Abstract: A shift register includes multiple stages connected with each other in succession. The shift register stores the threshold voltage of an amorphous silicon thin-film transistor in a capacitor. During operation, the bias applied to the transistor is adjusted according to the threshold voltage stored in the capacitor.Type: GrantFiled: June 27, 2007Date of Patent: July 29, 2008Assignee: Wintek CorporationInventors: Shin-Tai Lo, Ching-Fu Hsu, Wen-Tui Liao
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Publication number: 20080158207Abstract: A field sequential driving method includes the following steps. First, a liquid crystal display (LCD) including a display unit and a backlight unit is provided. The display unit includes several pixel units. Next, a white light source of the backlight unit is enabled during a first sub-frame period of a frame period of the LCD. Then, red and blue sub-pixel data are provided to drive a first sub-pixel and a second sub-pixel in the pixel unit during the first sub-frame period. Next, a green light source of the backlight unit is enabled during a second sub-frame period of the frame period. Thereafter, green sub-pixel data is provided to drive a third sub-pixel of the pixel unit during the second sub-frame period.Type: ApplicationFiled: December 3, 2007Publication date: July 3, 2008Applicant: Wintek Corpo.rationInventors: Ruey-Shing Weng, Shin-Tai Lo, Fa-Chen Wu
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Publication number: 20080122984Abstract: The invention provides an image processing method and apparatus thereof. The white component data is extracted from the input R, G, B color data which are the base components of the input image data. A maximum value is extracted from the R, G, B color data and a parameter is generated based on the white component data and the maximum value. The R, G, B color data are multiplied by the parameter to obtain a multiplication result. Subtract the white component data from the R, G, B color data to obtain a subtraction result. The multiplication result and the subtraction result are added together to generate the output R, G, B color data. The output R, G, B color data and the white component data form an output image data with higher brightness.Type: ApplicationFiled: November 9, 2007Publication date: May 29, 2008Applicant: WINTEK CORPORATIONInventors: Ching-Fu Hsu, Shin-Tai Lo, Ruey-Shing Weng, Jyun-Sian Li
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Publication number: 20080123951Abstract: An image processing method used for enhancing the color saturation of an image is provided. The image comprises a pixel with a pixel data, wherein the pixel data has the data of three colors. The image processing method comprises the steps stated below. Firstly, a color purity of the pixel is calculated and a corresponding scale factor is generated according to the color purity, wherein the color purity is the difference between the maximum grayscale value and the minimum grayscale value of the data of the three colors. Then, a processed pixel data is generated according to an enhancement matrix and the pixel data, wherein the enhancement matrix is determined by the scale factor.Type: ApplicationFiled: November 8, 2007Publication date: May 29, 2008Applicant: Wintek CorporrationInventors: Jyun-Sian Li, Shin-Tai Lo, Ruey-Shing Weng, Ching-Fu Hsu
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Publication number: 20080117152Abstract: A backlight processing system and a method thereof are provided. The gray level values of pixels in an input frame signal are adjusted and the brightness thereof is decreased correspondingly. During gray level value adjustment, the gray level values of the pixels in dark regions are reduced, and the gray level values of the pixels in bright regions are increased. During backlight adjustment, first, statistics information on distribution of the gray level value versus the number of pixels is obtained according to the gray level distribution of the original frame. The number of pixels at each gray level is accumulated. When the accumulation value reaches a certain value, a reference signal is obtained. The brightness of the backlight is then adjusted according to the reference signal.Type: ApplicationFiled: November 12, 2007Publication date: May 22, 2008Applicant: WINTEK CORPORATIONInventors: Ching-Fu Hsu, Ruey-Shing Weng, Jyun-Sian Li, Shin-Tai Lo