Methods and apparatus for backlight calibration
    11.
    发明申请
    Methods and apparatus for backlight calibration 有权
    用于背光校准的方法和装置

    公开(公告)号:US20090001251A1

    公开(公告)日:2009-01-01

    申请号:US11819372

    申请日:2007-06-27

    IPC分类号: G01J1/32

    摘要: Methods and apparatuses for backlight calibration are described. The apparatus 100 comprises a backlight unit 102 comprising a plurality of light sources 120, at least one photo-sensor 103 adapted to measure the light emitted by the backlight unit 102, a photo-sensor controller 112 coupled to the photo-sensor 103 for controlling the photo-sensor(s) 103, a backlight driving circuit 104 coupled to the light sources 120 for providing individual driving on each light source, a signal generator 114 coupled to the photo-sensor controller 112 and the backlight driving circuit 104 for controlling the operation timing of photo-sensors 103 and each of the light source 120 such that lighting conditions from each of the light source can be acquired, and a processing unit 111 coupled to the photo-sensor 103 and the backlight driving circuit 104 for analyzing the measurement data from the photo-sensors 103 and providing an adjustment signal to the backlight driving circuit 104 to achieve uniform lighting conditions of the backlight unit 102. Also described is a method comprising the steps of providing saved settings for backlight driver, providing a modified timing sequence to backlight driver and photo sensor 202, measuring light conditions of each individual light source or each individual group of light sources in backlight unit 203, comparing measurement data with predefined light conditions 205, calculating the adjustment required on backlight drivel to achieve desired light conditions, and saving calculated adjustment as new settings for backlight driver 207.

    摘要翻译: 描述用于背光校准的方法和装置。 装置100包括背光单元102,其包括多个光源120,适于测量由背光单元102发射的光的至少一个光电传感器103,耦合到光传感器103的光传感器控制器112,用于控制 光传感器103,耦合到光源120的用于在每个光源上提供单独驱动的背光驱动电路104,耦合到光传感器控制器112的信号发生器114和用于控制光电传感器的背光驱动电路104 光传感器103的操作时间和光源120中的每一个使得可以获取来自每个光源的照明条件,以及耦合到光传感器103和背光驱动电路104的处理单元111,用于分析测量 来自光传感器103的数据,并向背光驱动电路104提供调节信号,以实现背光单元102的均匀照明条件。还描述了 方法包括以下步骤:为背光驱动器提供保存的设置,向背光驱动器和光传感器202提供经修改的定时序列,测量背光单元203中的每个单独光源或每个单独的光源组的光条件,将测量数据与预定义的 光条件205,计算背光驱动所需的调节以实现期望的光条件,并将计算出的调整值保存为背光驱动器207的新设置。

    Image display apparatus
    12.
    发明申请
    Image display apparatus 审中-公开
    图像显示装置

    公开(公告)号:US20080122832A1

    公开(公告)日:2008-05-29

    申请号:US11605526

    申请日:2006-11-29

    IPC分类号: G09G5/00 G09G5/10

    摘要: Methods and apparatuses for image display are disclosed. There is provided an image display apparatus. The apparatus includes a plurality of display modules including display elements manufactured from different bins; a plurality of driving circuits providing different driving conditions for the display modules, at least one driving circuit for each display module; and a control circuit controlling the driving circuits to compensate each display module for variation of characteristics amongst modules of bins. The driving control circuit may include a look up table storing information about one or more characteristics of each display module.

    摘要翻译: 公开了用于图像显示的方法和装置。 提供了一种图像显示装置。 该装置包括多个显示模块,包括由不同的箱体制造的显示元件; 为显示模块提供不同驱动条件的多个驱动电路,每个显示模块的至少一个驱动电路; 以及控制电路,控制驱动电路以补偿每个显示模块用于箱的模块之间的特性的变化。 驱动控制电路可以包括存储关于每个显示模块的一个或多个特性的信息的查找表。

    Backlighting apparatus and manufacturing process
    13.
    发明申请
    Backlighting apparatus and manufacturing process 有权
    背光装置及制造工艺

    公开(公告)号:US20080144315A1

    公开(公告)日:2008-06-19

    申请号:US11640587

    申请日:2006-12-18

    IPC分类号: F21V29/00 F21V19/00 H01J9/00

    摘要: Apparatuses for backlighting and manufacturing processes thereof are disclosed. There is provided a backlight module. The backlight module comprises a double-sided circuit board with thermal conducting material as one of the core layers; a plurality of light source components mounted on the first surface of the circuit board; and, a plurality of electronic components mounted on the second surface of the circuit board. The thermal conducting core layer discharges heat generated by the light source components. The circuit board has at least one window on the surface layer at the second surface to expose the thermal conducting core layer for thermal dissipation. As such, the component heights on the illuminating side of the circuit board are unified, and the reflector can be made as a smooth planar sheet to provide a more uniform backlight illumination compared to a single-side circuit board design. Further, such an arrangement reduces the complexity in manufacturing the reflector and hence the cost thereof.

    摘要翻译: 公开了用于背光及其制造方法的装置。 提供背光模组。 背光模块包括具有导热材料作为芯层之一的双面电路板; 安装在电路板的第一表面上的多个光源组件; 以及安装在电路板的第二表面上的多个电子部件。 导热芯层对由光源部件产生的热量进行放电。 电路板在第二表面的表层上具有至少一个窗口,以露出导热芯层以进行散热。 因此,电路板的照明侧的部件高度是一体的,并且与单面电路板设计相比,反射器可以制成平滑的平面片材以提供更均匀的背光照明。 此外,这种布置降低了制造反射器的复杂性并因此降低了其成本。

    Backlighting apparatus and manufacturing process
    14.
    发明授权
    Backlighting apparatus and manufacturing process 有权
    背光装置及制造工艺

    公开(公告)号:US07607790B2

    公开(公告)日:2009-10-27

    申请号:US11640587

    申请日:2006-12-18

    IPC分类号: G09F13/04 G02F1/13

    摘要: Apparatuses for backlighting and manufacturing processes thereof are disclosed. There is provided a backlight module. The backlight module comprises a double-sided circuit board with thermal conducting material as one of the core layers; a plurality of light source components mounted on the first surface of the circuit board; and, a plurality of electronic components mounted on the second surface of the circuit board. The thermal conducting core layer discharges heat generated by the light source components. The circuit board has at least one window on the surface layer at the second surface to expose the thermal conducting core layer for thermal dissipation. As such, the component heights on the illuminating side of the circuit board are unified, and the reflector can be made as a smooth planar sheet to provide a more uniform backlight illumination compared to a single-side circuit board design. Further, such an arrangement reduces the complexity in manufacturing the reflector and hence the cost thereof.

    摘要翻译: 公开了用于背光及其制造方法的装置。 提供背光模组。 背光模块包括具有导热材料作为芯层之一的双面电路板; 安装在电路板的第一表面上的多个光源组件; 以及安装在电路板的第二表面上的多个电子部件。 导热芯层对由光源部件产生的热量进行放电。 电路板在第二表面的表层上具有至少一个窗口,以露出导热芯层以进行散热。 因此,电路板的照明侧的部件高度是一体的,并且与单面电路板设计相比,反射器可以制成平滑的平面片材以提供更均匀的背光照明。 此外,这种布置降低了制造反射器的复杂性并因此降低了其成本。

    PROJECTION LED MODULE AND METHOD OF MAKING A PROJECTION LED MODULE
    15.
    发明申请
    PROJECTION LED MODULE AND METHOD OF MAKING A PROJECTION LED MODULE 审中-公开
    投影LED模块和制作投影LED模块的方法

    公开(公告)号:US20110057557A1

    公开(公告)日:2011-03-10

    申请号:US12555327

    申请日:2009-09-08

    IPC分类号: H01L33/60 H01J9/00

    摘要: A projection light emitting diode (LED) module is provided. According to one embodiment, the LED module converts LED light to polarized light and emits the polarized light. One embodiments of the LED module includes a reflective polarizer positioned in a light emission path of the LED light, wherein the reflective polarizer polarizes the LED light, and the reflective polarizer further transmits the first polarization state light and reflects the second polarization state light; and a polarization conversion element bonded to the reflective polarizer, the polarization conversion element positioned between the LED light and the reflective polarizer, wherein the polarization conversion element coverts the second polarization state light to a desired polarization state light. A reflecting cup may be provided to increase the reflection of light back through the polarization conversion element and the reflective polarizer. The LED module may be configured for use with commercially available LED packages.

    摘要翻译: 提供投影发光二极管(LED)模块。 根据一个实施例,LED模块将LED光转换成偏振光并发射偏振光。 LED模块的一个实施例包括位于LED光的发光路径中的反射偏振器,其中反射偏振器偏振LED光,并且反射偏振器还透射第一偏振状态光并反射第二偏振状态光; 以及偏振转换元件,其结合到所述反射偏振器,所述偏振转换元件位于所述LED光和所述反射偏振器之间,其中所述偏振转换元件将所述第二偏振状态光覆盖到期望的偏振状态光。 可以提供反射杯以增加通过偏振转换元件和反射偏振器的光的反射。 LED模块可以被配置为与市售的LED封装一起使用。