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    • 5. 发明申请
    • Liquid crystal display
    • 液晶显示器
    • US20070296903A1
    • 2007-12-27
    • US11640308
    • 2006-12-18
    • Chang Ho LeeYong Kon LeeOh Sang Kwon
    • Chang Ho LeeYong Kon LeeOh Sang Kwon
    • G02F1/1343
    • G02F1/133608
    • A liquid crystal display device includes a liquid crystal display panel, a plurality of lamps for irradiating light onto the liquid crystal display panel, a cover bottom that houses the plurality of lamps, an inverter printed circuit board having a first surface and a second surface opposite to the first surface with an insulation base layer between the first and second surfaces, wherein the second surface is adjacent to the cover bottom, a transformer on the first surface of the inverter printed circuit board, and a metal shielding pattern on the second surface of the inverter printed circuit board directly between the transformer and the cover bottom.
    • 一种液晶显示装置,包括液晶显示面板,用于将光照射到液晶显示面板上的多个灯,容纳多个灯的盖底部,具有第一表面和第二表面的反相印刷电路板 在所述第一表面和所述第一表面和所述第二表面之间具有绝缘基底层,其中所述第二表面与所述盖底部相邻,所述逆变器印刷电路板的第一表面上的变压器和所述反相印刷电路板的第二表面上的金属屏蔽图案 逆变器印刷电路板直接在变压器和盖底之间。
    • 10. 发明授权
    • Limited current circuit of digital inverter for LCD backlight
    • LCD背光数字逆变器有限电流电路
    • US07911147B2
    • 2011-03-22
    • US11646720
    • 2006-12-27
    • Oh-Sang KwonChang-Ho LeeYong-Kon Lee
    • Oh-Sang KwonChang-Ho LeeYong-Kon Lee
    • H05B37/00
    • H05B41/2858Y02B20/186
    • A limited current circuit of this invention comprising: a transformer that raises an alternating current (AC) power supplied from the digital inverter to an AC voltage of a high voltage to light a lamp; a voltage/current detection unit that detects at least one of the current and voltage supplied to the lamp; an A/D converter that converts the detected voltage/current value of analog to a digital value; and a microcontroller unit (MCU) that induces an LCC check point after the start of a striking process, compares at least one of the output current value and voltage value from the transformer with a preset reference value on the basis of an output signal of the A/D converter and then shuts down the inverter when the output current value or voltage value is determined to be abnormal, wherein the reference value comprises at least one of the current value and voltage value measured at the LCC check point when an object having noninductive resistance is not contacted to the inverter.
    • 本发明的有限电流电路包括:变压器,其将从数字逆变器提供的交流电(AC)电力提高到高电压的AC电压以点亮灯; 电压/电流检测单元,其检测提供给所述灯的电流和电压中的至少一个; A / D转换器,其将检测到的模拟电压/电流值转换为数字值; 以及在触发过程开始之后引起LCC检查点的微控制器单元(MCU),将来自变压器的输出电流值和电压值中的至少一个与预设的参考值进行比较,基于输出信号 A / D转换器,然后当输出电流值或电压值被确定为异常时,关闭逆变器,其中参考值包括当具有非导体的物体时在LCC检查点测量的电流值和电压值中的至少一个 电阻不接触逆变器。