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    • 1. 发明申请
    • APPARATUS AND METHOD FOR CONTROLLING WHITE BALANCE OF LASER DISPLAY SYSTEM
    • 控制激光显示系统白平衡的装置和方法
    • WO2010013907A3
    • 2010-04-22
    • PCT/KR2009003997
    • 2009-07-20
    • LG ELECTRONICS INCKIM YONG KISEO JUNG HOON
    • KIM YONG KISEO JUNG HOON
    • H04N5/57
    • H04N9/73H04N9/3129H04N9/3155H04N9/3161H04N9/3182
    • The present invention relates to an apparatus and a method capable of controlling the white balance of a laser display system in consideration of the properties of laser beams. The apparatus comprises: a thermal sensing unit for sensing the current temperature of a laser beam source; a detection unit for measuring the optical output intensity of the laser beam source; a storage unit for storing a reference value including the allowable current range and the optical output intensity according to temperature; a search unit for searching the allowable current range corresponding to the sensed current temperature or the reference value corresponding to the measured optical output intensity; a control value generating unit for generating a control value by comparing the measurement value of the optical output intensity obtained from the detection unit with the reference value obtained by the search unit; a laser beam source driving unit for controlling the optical output intensity of the corresponding laser beam source according to the current value within the allowable current range or the generated control value; and a control unit for controlling the search unit, the control value generating unit and the laser beam source driving unit.
    • 本发明涉及一种能够考虑激光束的性质来控制激光显示系统的白平衡的装置和方法。 该装置包括:用于感测激光束源的当前温度的热感测单元; 用于测量激光束源的光输出强度的检测单元; 存储单元,用于根据温度存储包括容许电流范围和光输出强度的参考值; 搜索单元,用于搜索与所检测的当前温度相对应的容许电流范围或与测量的光输出强度对应的参考值; 控制值产生单元,用于通过将从检测单元获得的光输出强度的测量值与由搜索单元获得的参考值进行比较来产生控制值; 激光束源驱动单元,用于根据在允许电流范围内的当前值或所生成的控制值来控制相应激光束源的光输出强度; 以及控制单元,用于控制搜索单元,控制值生成单元和激光束源驱动单元。
    • 3. 发明申请
    • APPARATUS AND METHOD FOR DRIVING LIGHT SCANNER
    • 驱动光扫描仪的装置和方法
    • WO2009139606A3
    • 2010-05-27
    • PCT/KR2009002599
    • 2009-05-15
    • LG ELECTRONICS INCSEO JUNG HOONKIM JAE SUNGKWON JAE WOOK
    • SEO JUNG HOONKIM JAE SUNGKWON JAE WOOK
    • H04N9/31G02B26/10
    • H04N9/3129H04N9/3194
    • An apparatus for driving a light scanner and method thereof are disclosed. The present invention includes an apparatus for driving a light scanner, which scans an image 5 on a screen, the apparatus comprising the light scanner (11 ) driven by a drive signal, a sensing unit (13) sensing a driving of the light scanner, a pixel clock signal generating unit (15) generating a pixel clock signal by detecting a 90-degree phase difference between the drive signal and a sensing 10 signal sensed by the sensing unit (13), a sync signal adjusting unit (17) adjusting vertical and horizontal sync signals of an input video according to the pixel clock signal and a driving unit (19) driving the light scanner (11 ) according to the adjusted horizontal and vertical sync signals.
    • 公开了一种用于驱动光扫描器的装置及其方法。 本发明包括一种用于驱动光扫描器的装置,其对屏幕上的图像5进行扫描,该装置包括由驱动信号驱动的光扫描器(11),感测光扫描器的驱动的感测单元(13) 像素时钟信号生成单元,用于通过检测所述驱动信号与所述感测单元检测到的感测10信号之间的90度相位差来生成像素时钟信号;同步信号调整单元, 和根据像素时钟信号的输入视频的水平同步信号和根据调整的水平和垂直同步信号驱动光扫描器(11)的驱动单元(19)。
    • 4. 发明申请
    • LASER PROJECTION DISPLAY AND IMAGE DISTORTION CORRECTION METHOD FOR THE SAME
    • 激光投影显示和图像畸变矫正方法
    • WO2010011066A3
    • 2010-05-14
    • PCT/KR2009003996
    • 2009-07-20
    • LG ELECTRONICS INCSEO JUNG HOONCHOI JUNG HWANKWON JAE WOOK
    • SEO JUNG HOONCHOI JUNG HWANKWON JAE WOOK
    • H04N9/64
    • H04N9/3185H04N9/3129
    • The present invention relates to a laser projection display and an image distortion correction method for the same. The image distortion correction method comprises the steps of: displaying a picture containing a red image, a green image, and a blue image; selecting one of the red image, the green image, and the blue image for the pixel alignment of the picture; computing pixel coordinate values x + dx and y + dy (wherein, x is the x-coordinate value before alignment, y is the y-coordinate value before alignment, dx is the x-coordinate value which is varied after alignment, and dy is the y-coordinate value which is varied after alignment); and computing distortion correction coordinate values X' and Y' corresponding to the pixel coordinate values x + dx and y + dy; and mapping the distortion correction coordinate values X' and Y' to correct the distortion of the selected image.
    • 激光投影显示器及其图像畸变校正方法本发明涉 该图像失真校正方法包括以下步骤:显示包含红色图像,绿色图像和蓝色图像的图片; 选择红色图像,绿色图像和蓝色图像中的一个用于图像的像素对准; 计算像素坐标值x + dx和y + dy(其中,x是对齐前的x坐标值,y是对齐前的y坐标值,dx是对齐后变化的x坐标值,并且dy是 对齐后变化的y坐标值); 并计算与像素坐标值x + dx和y + dy相对应的失真校正坐标值X'和Y'; 并且映射畸变校正坐标值X'和Y'以校正所选图像的畸变。