Chen Jung Tsai
Chen Jung Tsai, Hong Kong HK
Patent application number | Description | Published |
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20080198235 | HIGH DYNAMIC RANGE IMAGE RECORDER - Methods and devices ( | 08-21-2008 |
20080291153 | IMAGE DISPLAY DEVICE AND METHOD - An image display device is presented to solve problems of high power consumption, insufficient contrast, image flicker, and distortion of image display devices. The image display device includes an image display management module which includes a backlight control unit. The backlight control unit includes an image brightness analyzer, generating a brightness value according to an input image data; a weight generator, generating a weight according to the brightness value; an image variation analyzer, analyzing the input image data to generate an image variance; and a backlight factor generator, coupled to the weight generator and the image variation analyzer to generate a backlight adjusting signal according to the weight and the image variance. By the backlight adjusting signal, the image display device achieves the power-saving and contrast enhancement effects. | 11-27-2008 |
20100170725 | TOUCH SURFACE AND SYSTEM AND METHOD OF DETECTING TOUCH INPUT - A system and method for touch detection and a touch-responsive surface are provided. According to one embodiment, a “virtual” touch-sensitive surface in is provided in that a plurality of transmitter-sensor devices receive and calculate a touch by detecting position and movement on a touch surface. The touch surface includes a planar surface; a first transmitter-sensor device located at a first position proximate to the planar surface and a second transmitter-sensor device located at a second position proximate to the planar surface, wherein each of the transmitter-sensors includes a light beam emitter and a scanning micromirror to reflect the light beam across the planar surface. A processing unit is in operable communication with the first transmitter-sensor device and the second transmitter-sensor device, and the processing unit is configured to calculate the position of a touch on the planar surface based on one or more times of refection of the light beams. | 07-08-2010 |
20100277436 | Sensing System for a Touch Sensitive Device - A sensing system for sensing a touch input on a touch sensitive device, the system including: a sensing plane; a well-collimated light source for generating a plurality of light rays along one or more planes different from the sensing plane; and a reflecting means adjacent one edge of the sensing plane for transforming at least a subset of the light rays into substantially parallel light rays and redirecting the subset of light rays along the sensing plane, at least one of the light rays along the sensing plane being interruptable by the touch input thereby allowing the sensing system to determine a position coordinate of the touch input. A related method of sensing a touch input on a touch sensitive device is also provided. | 11-04-2010 |
20120206784 | DEVICE FOR REDUCING SPECKLE EFFECT IN A DISPLAY SYSTEM - The present invention relates to a method and apparatus for speckle noise reduction in laser scanning projection display. In particular, a MEMS device with a vibrating membrane through which light rays are refracted with temporally varying angles is provided for reducing the effect of speckling. | 08-16-2012 |
Chen Jung Tsai, Hsinchu TW
Patent application number | Description | Published |
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20090001251 | Methods and apparatus for backlight calibration - Methods and apparatuses for backlight calibration are described. The apparatus | 01-01-2009 |
20090032923 | METHOD AND APPARATUS FOR STACKING ELECTRICAL COMPONENTS USING VIA TO PROVIDE INTERCONNECTION - An efficient chip stacking structure is described that includes a leadframe having two surfaces to each of which can be attached stacks of chips. A chip stack can be formed by placing a chip active surface on a back surface of another chip. Electrical connections between chips and leads on the leadframe are facilitated by bonding pads on chip active surfaces and by via that extend from the bonding pads through the chips to the back surfaces. | 02-05-2009 |
20090167670 | METHOD OF DETERMINING LUMINANCE VALUES FOR A BACKLIGHT OF AN LCD PANEL DISPLAYING AN IMAGE - A controller for a backlight for a liquid crystal display (LCD) panel has at least two methods for determining illumination value for the backlight. The controller selects between the two methods based on properties of the image being displayed. The properties of the image include its color and its intensity. | 07-02-2009 |
20090174049 | ULTRA THIN IMAGE SENSOR PACKAGE STRUCTURE AND METHOD FOR FABRICATION - An image sensor package having at least one chip supporting bar secured to a top surface of an image sensor chip. The thickness of the chip supporting bar is absorbed within a vertical dimension of wire loops that connect bonding pads to leads so that the chip supporting bar does not contribute to the thickness of the image sensor package. An exposed back surface of the image sensor chip enhances thermal dissipation. | 07-09-2009 |
Chen Jung Tsai, Judung TW
Patent application number | Description | Published |
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20090051642 | Backlight assembly, method of driving the same and display system having the same thereof - The present invention provides a backlight assembly and a display system having the same, characterized in that the backlight assembly comprises: a plurality of light emission units and a control unit. Each unit having M kinds of emission components, each of the M kinds of emission components emitting light of a spectrum which is different from each other, wherein M is a positive integer equal to or greater than two. The control unit receives a first signal and determines a second signal according to the color information of the first signal, and individually controls light emission of each emission component of the plurality of light emission units based on the second signal, wherein the light emissions from the plurality of light emission units generate a spatially-dependent spectrum distribution, and the light emission of each light emission unit forms a color gamut in a color space which is individually different from others. | 02-26-2009 |
20090122001 | Method and apparatus for image display with backlight illumination - An LCD display apparatus arranged to display image on an image display surface at an image frame rate of M image frames per second, the apparatus including a backlight arrangement comprising an LED backlight device for providing backlight illumination to said image display surface and a backlight controller for controlling the generation of backlight and intensity distribution of backlight illumination on said image display surface; wherein the backlight controller comprises a processor configured to generate a set of backlight illumination data with reference to the intensity distribution characteristics of the image content of said image frame according to a predetermined relationship, wherein said set of backlight illumination data contains information on the required intensity distribution of backlight on said image display surface for said image frame; and to generate a plurality of backlight illumination frames for each said image frame during the duration of said image frame based on said set of backlight illumination data; wherein the intensity aggregate of said plurality of backlight illumination frames generated during the duration of said image frame is equivalent to the required intensity distribution of backlight on said image display surface for said image frame. | 05-14-2009 |