公开(公告)号：US20080143667A1

公开(公告)日：2008-06-19

申请号：US12001211

申请日：2007-12-10

申请人： Yong Keun Jee ,  Hun Suk Yoo ,  Hwan Woong Lee ,  Sang Soo Hwang

发明人： Yong Keun Jee ,  Hun Suk Yoo ,  Hwan Woong Lee ,  Sang Soo Hwang

IPC分类号： G09G3/36

CPC分类号： H01J61/305 ,  G02F1/133602 ,  G09G3/342 ,  G09G2310/024 ,  G09G2320/064 ,  H01J65/04

摘要： There is a provided a surface light source device comprising: a light source body having an inner space therein in which a discharge gas is contained; a plurality of electrodes formed on the light source body in such a manner as to electrically divide the inner space into at least three blocks and applying discharge voltages to the blocks; and a driving unit sequentially applying the discharge voltages to the blocks through the electrodes in synchronization with a video signal of an external display device. The light source body may have a plurality of discharge spaces or a single discharge space therein. In accordance with the present invention, the surface light source device sequentially applies the discharge voltages to the blocks, and thereby can reduce an after-image occurring in a liquid crystal display device. Further, the surface light source device is driven with a duty ratio varied depending on brightness of the video signal, and thereby integrated power consumption can be reduced and a contrast ratio can be improved.

摘要翻译： 提供了一种表面光源装置，包括：光源体，其内部具有排出气体的内部空间; 多个电极，其形成在所述光源体上，以将所述内部空间电分为至少三个块并向所述块施加放电电压; 以及与外部显示装置的视频信号同步地通过电极将放电电压顺序地施加到块的驱动单元。 光源体可以具有多个放电空间或其中的单个放电空间。 根据本发明，面光源装置顺序地对各块施加放电电压，能够减少在液晶显示装置中产生的后期图像。 此外，由于根据视频信号的亮度而变化的占空比来驱动面光源装置，从而能够降低集成的电力消耗，提高对比度。