Patents by Inventor Wai Hon Ng
Wai Hon Ng 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: 11443680Abstract: The present invention provides a dithering and directional modulation-based frame rate conversion apparatus comprising: a directional delta modulation generator configured to receive a plurality of input color data representing a plurality of input color components of an input pixel color and generate a plurality of modulated data for the plurality of input color data respectively; and a plurality of dithering modules configured to perform K-bit dithering conversion on the plurality of input color data respectively to generate a plurality of output color data for representing a plurality of output color components of an output pixel color with a color depth of K bits per component, where K is an integer equal to or great than 1. The present invention can allow display to support frame rates higher than its standard configuration without observable color depth degradation.Type: GrantFiled: December 30, 2021Date of Patent: September 13, 2022Assignee: Solomon Systech (Shenzhen) LimitedInventors: Wing Chi Stephen Chan, Chi Wai Lee, Wai Hon Ng, Chen Jung Chuang
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Patent number: 11145696Abstract: A passive matrix organic light emitting diode (PMOLED) display which includes a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel in a direction and being perpendicular to the lower electrode pattern, and an organic compound layer interposed between the lower electrode pattern and the transparent electrode pattern and by time-sharing control period into a display control period and a touch sensor control period for each display frame to implement image output and touch sensing; the display includes: a plurality of mutual electrode patterns provided to the vicinity of a display area defined by the lower electrode pattern and the transparent electrode pattern; a display driving circuit; a multiplexer; and a touch driving circuit connected to the lower electrode pattern or the transparent electrode pattern through the multiplexer in the touch sensor control period.Type: GrantFiled: October 24, 2019Date of Patent: October 12, 2021Assignee: Solomon Systech (Shenzhen) Ltd.Inventors: Hong Jae Jang, Hyung-Cheol Shin, Il-Hyun Yun, Wai Hon Ng, Pui Yuen Lam
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Patent number: 10871854Abstract: A computing device for interacting with a user, comprising: a touch-sensing enabled display panel comprising one or more touch sensors for sensing an on-screen touch and one or more physical keys being positioned adjacent to edges of the display panel and configured to serve as off-screen keys for sensing an off-screen touch. The touch-sensing functionality is extended by coupling the touch screen with proximally positioned physical keys for detecting touch gesture such that additional gestures can be detected and in turn enhancing the computing device's user experience.Type: GrantFiled: May 13, 2019Date of Patent: December 22, 2020Assignee: Solomon Systech (Shenzhen) LimitedInventors: Wai Hon Ng, Wing Chi Stephen Chan, Chi Wai Lee, Chun Hung Lai, Johnkid Lo
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Publication number: 20200363897Abstract: A computing device for interacting with a user, comprising: a touch-sensing enabled display panel comprising one or more touch sensors for sensing an on-screen touch and one or more physical keys being positioned adjacent to edges of the display panel and configured to serve as off-screen keys for sensing an off-screen touch. The touch-sensing functionality is extended by coupling the touch screen with proximally positioned physical keys for detecting touch gesture such that additional gestures can be detected and in turn enhancing the computing device's user experience.Type: ApplicationFiled: May 13, 2019Publication date: November 19, 2020Inventors: Wai Hon NG, Wing Chi Stephen CHAN, Chi Wai LEE, Chun Hung LAI, Johnkid LO
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Patent number: 10707279Abstract: Provided is a method of sensing an illuminance in a passive matrix organic light emitting diode display, the display including a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel and being perpendicular to the lower electrode patterns, and an organic compound layer interposed between the lower electrode pattern and the transparent electrode pattern, the method comprising steps of: (a) forming a predetermined voltage difference between at least one electrode patterns of the transparent electrode patterns as anodes and the lower electrode patterns as cathodes; (b) measuring the magnitude of current formed by the transparent electrode pattern and the lower electrode pattern in the step (a); and (c) measuring an illuminance using the measured current, in which a voltage supplied to the lower electrode pattern is relatively higher than that of the transparent electrode pattern in the step (a).Type: GrantFiled: September 26, 2018Date of Patent: July 7, 2020Assignee: Solomon Systech (Shenzhen) LimitedInventors: Hong Jae Jang, Hyung-Cheol Shin, Il-Hyun Yun, Wai Hon Ng, Yi Nok Chan, King Ho Cheung, Yip Fai Li
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Publication number: 20200161381Abstract: A passive matrix organic light emitting diode (PMOLED) display which includes a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel in a direction and being perpendicular to the lower electrode pattern, and an organic compound layer interposed between the lower electrode pattern and the transparent electrode pattern and by time-sharing control period into a display control period and a touch sensor control period for each display frame to implement image output and touch sensing; the display includes: a plurality of mutual electrode patterns provided to the vicinity of a display area defined by the lower electrode pattern and the transparent electrode pattern; a display driving circuit; a multiplexer; and a touch driving circuit connected to the lower electrode pattern or the transparent electrode pattern through the multiplexer in the touch sensor control period.Type: ApplicationFiled: October 24, 2019Publication date: May 21, 2020Inventors: Hong Jae Jang, Hyung-Cheol Shin, Il-Hyun Yun, Wai Hon Ng, Pui Yuen Lam
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Patent number: 10643519Abstract: A method is provided that allows the use of monochrome PMOLED display driver to generate grayscale patterns without the need to change the resolution of the 1-bit digital-to-analog converter (DAC) on the data line (SEG). The method further allows the elimination of extra frame buffer display memory needed by conventional techniques. This is achieved by swapping display memory space for display image pixel color (grayscale) depth in the expense of display resolution. The method further allows grayscale pattern data to be written into frame buffer only once without additional control from the host controller. The method further allows the dynamic application of grayscale on selectable whole or portion of a scan line such that full grayscale image display or a mixture of monochrome and grayscale image display in a single display panel is possible.Type: GrantFiled: July 24, 2017Date of Patent: May 5, 2020Assignee: Solomon Systech (Shenzhen) LimitedInventors: Chi Wai Lee, Chun Hung Lai, Wai Hon Ng, Yuen Pat Lau, Ling Sum Leung
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Patent number: 10347174Abstract: A system enabling compressed frame scanning for a display and a method thereof are described herein. A pixel having a maximum pixel data in a row of the plurality of rows corresponding to a frame is identified. The maximum pixel data identified in the row is assigned as a pixel data for the row. A scan time for the row is computed based upon the pixel data of the row and a scanning time associated with a unit of the brightness index. An aggregate scan time for the frame is determined based upon the scan time computed for each of the plurality of rows corresponding to the frame. Finally, the frame is scanned based upon the aggregate scan time determined for the frame thereby enabling compressed scanning of the frame. The method is further implemented for randomly assigned rows of the frame to two or more sub-frames of the frame.Type: GrantFiled: November 6, 2017Date of Patent: July 9, 2019Assignee: Solomon Systech LimitedInventors: Wai Hon Ng, Chi Wai Lee, Wing Chi Stephen Chan, Ling Sum Leung
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Patent number: 10318085Abstract: A PMOLED touch-sensing display panel using anodes as in-cell touch sensors is provided. The anodes and the cathodes are respectively and correspondingly configured into two or more electrically isolated areas of cathodes and anodes such that the heavy parasitic capacitance due to close proximity of the anode layer and the cathode layer is eliminated, hence providing a full dynamic range in sensing the changes in capacitance due to finger touches.Type: GrantFiled: October 26, 2017Date of Patent: June 11, 2019Assignee: SOLOMON SYSTECH (SHENZHEN) LIMITEDInventors: Wing Chi Stephen Chan, Wai Hon Ng, Sing Ng, Hon Sheung Liu, Yip Fai Li, Wai Lan Ng, Johnkid Lo
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Publication number: 20190103446Abstract: Provided is a method of sensing an illuminance in a passive matrix organic light emitting diode display, the display including a plurality of lower electrode patterns arranged in parallel, a plurality of transparent electrode patterns arranged in parallel and being perpendicular to the lower electrode patterns, and an organic compound layer interposed between the lower electrode pattern and the transparent electrode pattern, the method comprising steps of: (a) forming a predetermined voltage difference between at least one electrode patterns of the transparent electrode patterns as anodes and the lower electrode patterns as cathodes; (b) measuring the magnitude of current formed by the transparent electrode pattern and the lower electrode pattern in the step (a); and (c) measuring an illuminance using the measured current, in which a voltage supplied to the lower electrode pattern is relatively higher than that of the transparent electrode pattern in the step (a).Type: ApplicationFiled: September 26, 2018Publication date: April 4, 2019Inventors: Hong Jae JANG, Hyung-Cheol SHIN, Il-Hyun YUN, Wai Hon NG, Yi Nok CHAN, King Ho Cheung, Yip Fai LI
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Publication number: 20190027084Abstract: A method is provided that allows the use of monochrome PMOLED display driver to generate grayscale patterns without the need to change the resolution of the 1-bit digital-to-analog converter (DAC) on the data line (SEG). The method further allows the elimination of extra frame buffer display memory needed by conventional techniques. This is achieved by swapping display memory space for display image pixel color (grayscale) depth in the expense of display resolution. The method further allows grayscale pattern data to be written into frame buffer only once without additional control from the host controller. The method further allows the dynamic application of grayscale on selectable whole or portion of a scan line such that full grayscale image display or a mixture of monochrome and grayscale image display in a single display panel is possible.Type: ApplicationFiled: July 24, 2017Publication date: January 24, 2019Inventors: Chi Wai Lee, Chun Hung Lai, Wai Hon Ng, Yuen Pat Lau, Ling Sum Leung
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Publication number: 20190018515Abstract: A PMOLED touch-sensing display panel using anodes as in-cell touch sensors is provided. The anodes and the cathodes are respectively and correspondingly configured into two or more electrically isolated areas of cathodes and anodes such that the heavy parasitic capacitance due to close proximity of the anode layer and the cathode layer is eliminated, hence providing a full dynamic range in sensing the changes in capacitance due to finger touches.Type: ApplicationFiled: October 26, 2017Publication date: January 17, 2019Inventors: Wing Chi Stephen Chan, Wai Hon Ng, Sing Ng, Hon Sheung Liu, Yip Fai Li, Wai Lan Ng, Johnkid Lo
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Publication number: 20180190188Abstract: A system enabling compressed frame scanning for a display and a method thereof are described herein. A pixel having a maximum pixel data in a row of the plurality of rows corresponding to a frame is identified. The maximum pixel data identified in the row is assigned as a pixel data for the row. A scan time for the row is computed based upon the pixel data of the row and a scanning time associated with a unit of the brightness index. An aggregate scan time for the frame is determined based upon the scan time computed for each of the plurality of rows corresponding to the frame. Finally, the frame is scanned based upon the aggregate scan time determined for the frame thereby enabling compressed scanning of the frame. The method is further implemented for randomly assigned rows of the frame to two or more sub-frames of the frame.Type: ApplicationFiled: November 6, 2017Publication date: July 5, 2018Inventors: Wai Hon Ng, Chi Wai Lee, Wing Chi Stephen Chan, Ling Sum Leung
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Patent number: 8314779Abstract: A controller for detection of touches by a single finger or multiple fingers on a touch panel, the touch panel including a first group of electrodes arranged in a first direction and a second group of electrodes arranged in a second direction, thereby forming a plurality of crossover points.Type: GrantFiled: February 23, 2009Date of Patent: November 20, 2012Assignee: Solomon Systech LimitedInventors: Wing Chi Stephen Chan, Wai Pak Choi, Wai Kin Cheng, Kwok Wah Chu, Siu Hong Lui, Yao Lu, Wai Hon Ng
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Patent number: 8228264Abstract: Method and apparatus are provided for driving segments of a bistable display. The method may include providing, at the same time, a plurality of independent waveforms corresponding to display data for driving a plurality of segments of the display. The method may include selecting, for each segment, one of the independent driving waveforms. The method may also include determining whether an update of display data has occurred for one of the segments. The method may include selecting a different one of the waveforms to drive the segment if an update has occurred. The method may further include maintaining a currently selected waveform to drive the segment if an update has not occurred.Type: GrantFiled: March 28, 2007Date of Patent: July 24, 2012Assignee: Solomon Systech LimitedInventors: Chi Wai Ng, Siu Kei Wong, Wai Hon Ng, Man Chun Wong, Jimmy Chiu
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Patent number: 7907116Abstract: A drive system for a display having segment and common lines is provided. The system may include a first charge pump; a first storage capacitor coupled to the first charge pump at a first pumped voltage level; a second charge pump, including an input terminal coupled to the first storage capacitor; and a second storage capacitor coupled to a pump output terminal at the second pumped voltage level. The system may also include a controller coupled to the first and second storage capacitors, coupled to segment and common lines of an associated display; and a control circuit operating a plurality of switching devices to selectively connect the segment output terminal to the first and second storage capacitors to supply charge to the segment output terminal during a first phase and to return charge from the segment output terminal to the second storage capacitor during a second phase.Type: GrantFiled: May 3, 2007Date of Patent: March 15, 2011Assignee: Solomon Systech LimitedInventors: Wai Hon Ng, Man Chun Wong, Chi Wai Ng, Siu Kei Wong, Jimmy Chiu
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Patent number: 7791575Abstract: A driving circuit for driving a display panel including a plurality of pixels. The driving circuit includes a selecting signal generator to generate a plurality of selecting signals according to a first and a second pixel data, a voltage divider to provide a plurality of sub-transition voltages, and a voltage selector coupled to receive the plurality of sub-transition voltages and the selecting signal, and to selectively output a plurality of sub-transition voltages serially according to the selecting signals. A drive buffer is coupled to receive the outputted sub-transition voltages serially and to serially generate a plurality of sub-transition driving voltages according to the outputted sub-transition voltages during a transition time period.Type: GrantFiled: July 15, 2005Date of Patent: September 7, 2010Assignee: Solomon Systech LimitedInventors: Yuen Pat Lau, Wai Hon Ng, Stephen Wai-Yan Lai
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Publication number: 20100214232Abstract: A controller for detection of touches by a single finger or multiple fingers on a touch panel, the touch panel including a first group of electrodes arranged in a first direction and a second group of electrodes arranged in a second direction, thereby forming a plurality of crossover points.Type: ApplicationFiled: February 23, 2009Publication date: August 26, 2010Inventors: Wing Chi Stephen CHAN, Wai Pak CHOI, Wai Kin CHENG, Kwok Wah CHU, Siu Hong LUI, Yao LU, Wai Hon NG
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Patent number: 7522443Abstract: The integrated circuit memory comprises a memory array including a plurality of memory cells in rows and columns, the memory array being divided into a plurality of blocks of the memory cells.Type: GrantFiled: July 15, 2005Date of Patent: April 21, 2009Assignee: Solomon Systech LimitedInventors: Wai Hon Ng, Chi Wai Lee, Ka Wai Cheung, Yin Li
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Publication number: 20080273007Abstract: A drive system for a flat panel display having segment and common lines is provided. The system may include a first charge pump, including an input terminal for receiving electric charge at an input voltage level and a circuit for generating a first pumped voltage level. The system may also include a first storage capacitor coupled to the first charge pump for storing electric charge at the first pumped voltage level. The system may include a second charge pump, including an input terminal coupled to the first storage capacitor for receiving electric charge at the first pumped voltage level; a pump output terminal; and a circuit for generating a second pumped voltage level at the pump output terminal. The system may further include a second storage capacitor coupled to the pump output terminal for storing electric charge at the second pumped voltage level.Type: ApplicationFiled: May 3, 2007Publication date: November 6, 2008Inventors: Wai Hon Ng, Man Chun Wong, Chi Wai Ng, Siu Kei Wong, Jimmy Chiu