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    • 4. 发明授权
    • Liquid crystal display apparatus and method of driving the same
    • 液晶显示装置及其驱动方法
    • US07764267B2
    • 2010-07-27
    • US11696103
    • 2007-04-03
    • Seong-Sik ShinJong-Seo LeeJoo-Young LeeTae-Jong JunJung-Suk Han
    • Seong-Sik ShinJong-Seo LeeJoo-Young LeeTae-Jong JunJung-Suk Han
    • G09G3/36
    • G09G3/3413G09G3/342G09G2310/024G09G2320/0242
    • A liquid crystal display (LCD) apparatus time-divides a frame into a plurality of fields, in which lights having a color different from each other, are generated. The LCD apparatus includes a backlight unit. The backlight unit includes n of light-generating units sequentially generating the lights in the fields. An initial light-generating time of an nth light-generating unit being delayed by a predetermined time gap relative to the (n−1)th light-generating unit so that each of the fields includes a first period, in which one of the lights is generated, and a second period, in which at least two of the lights are generated. The light-generating units generate a peak light having a peak intensity in the first period. Thus, the intensity of light or the time period for which the light is generated, is controlled so that color mixing is minimized and color purity is improved.
    • 液晶显示器(LCD)装置将帧分割成具有彼此不同的颜色的光的多个场。 LCD装置包括背光单元。 背光单元包括在场中顺序产生光的n个发光单元。 第n发光单元的初始发光时间相对于第(n-1)个发光单元被延迟预定的时间间隔,使得每个场包括第一周期,其中一个光 以及产生至少两个光的第二周期。 光产生单元产生在第一周期中具有峰值强度的峰值光。 因此,控制光的强度或产生光的时间段,使得混色最小化并提高色纯度。
    • 5. 发明授权
    • Light emitting diode and lens for the same
    • 发光二极管和镜头相同
    • US07572036B2
    • 2009-08-11
    • US11120666
    • 2005-05-03
    • Ju-Young YoonGi-Cherl KimJong-Seo LeeChun-Ho SongSe-Ki ParkSang-Gil LeeSeock-Hwan Kang
    • Ju-Young YoonGi-Cherl KimJong-Seo LeeChun-Ho SongSe-Ki ParkSang-Gil LeeSeock-Hwan Kang
    • F21V5/00
    • F21V5/04F21V5/008F21Y2115/10G02B3/04G02B19/0014G02B19/0061G02F1/133603H01L33/54H01L33/58
    • A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. In addition, when an obtuse angle formed between a main axis of the lens and a tangent line of a point of the curved centermost surface is A1, and an acute angle formed between a straight line linking the center of the base to the point of the curved centermost surface and the main axis of the lens is A 2, the lens satisfies the equation: A1+A2
    • 用折射率为n的材料形成用于发光二极管的透镜,透镜包括基底,从基底延伸的第一弯曲圆周表面,从第一弯曲圆周表面延伸的弯曲的中心边缘表面, 以及从弯曲的中心边缘表面延伸的弯曲的中心表面。 基座包括用于在其中接收发光芯片的凹槽。 在透镜中,从基部的中心到弯曲的中心边缘表面的点的距离总是短于弯曲的中心边缘表面的点的曲率半径。 弯曲的中心表面相对于基部具有凹形。 此外,当形成在透镜的主轴与弯曲的最中心表面的点的切线之间的钝角为A1时,并且在连接基座的中心与直线的中心的直线之间形成锐角 弯曲的最中心的表面和透镜的主轴是A 2,透镜满足等式:A1 + A2 <90 + sin-1(1 / n)。