公开(公告)号：US20080143667A1

公开(公告)日：2008-06-19

申请号：US12001211

申请日：2007-12-10

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

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

IPC: G09G3/36

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08907585B2

公开(公告)日：2014-12-09

申请号：US13241338

申请日：2011-09-23

Applicant: Seung-Wan Kim ,  Won-Sik Oh ,  Young-Sup Kwon ,  Hwan-Woong Lee

Inventor： Seung-Wan Kim ,  Won-Sik Oh ,  Young-Sup Kwon ,  Hwan-Woong Lee

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0842

Abstract: A method of driving a light source includes receiving an alternating current (“AC”) voltage from outside, generating a first direct current (“DC”) voltage based on the AC voltage, generating a second DC voltage, corresponding to a difference between a driving voltage of a light source part and the first DC voltage, based on the first DC voltage, and outputting a sum of the first DC voltage and the second DC voltage to the light source part.

Abstract translation: 驱动光源的方法包括从外部接收交流（“AC”）电压，基于交流电压产生第一直流电压（“DC”），产生与第一直流电压 基于第一直流电压对光源部的驱动电压和第一直流电压进行输出，并将第一直流电压和第二直流电压之和输出到光源部。

公开(公告)号：US20120038691A1

公开(公告)日：2012-02-16

申请号：US13192037

申请日：2011-07-27

Applicant: Hwan-Woong LEE ,  Moon-Shik KANG ,  Young-Sup KWON

Inventor： Hwan-Woong LEE ,  Moon-Shik KANG ,  Young-Sup KWON

IPC: G09G5/10

CPC classification number: H04N13/356 ,  H04N13/341

Abstract: A method of driving a light source, which comprises a first light-emitting module including first to k-th light source blocks and disposed at a first edge of a light guide plate, and a second light-emitting module including first to m-th light source blocks and disposed at a second edge of the light guide plate, wherein k and m are natural numbers, includes generating a plurality of duty control signals corresponding to the first to k-th top light source blocks and the first to m-th bottom light source blocks based on an image signal, and selectively generating first to k-th top driving signals and first to m-th bottom driving signals using the plurality of duty control signals based on a three-dimensional image enable signal, where the first to k-th top driving signals drive the first light-emitting module, and the first to m-th bottom driving signals drive the second light-emitting module

Abstract translation: 一种驱动光源的方法，包括：第一发光模块，其包括第一至第k光源块，并设置在导光板的第一边缘;以及第二发光模块，包括第一至第m 光源块并且设置在所述导光板的第二边缘处，其中k和m是自然数，包括产生对应于第一至第k顶部光源块和第一至第m顶部光源块的多个占空比控制信号 基于图像信号的底部光源块，并且基于三维图像使能信号，使用多个占空比控制信号选择性地产生第一至第k顶部驱动信号和第一至第m下部驱动信号，其中第一 到第k顶驱动信号驱动第一发光模块，并且第一至第m底驱动信号驱动第二发光模块

公开(公告)号：US20070247070A1

公开(公告)日：2007-10-25

申请号：US11785031

申请日：2007-04-13

Applicant: Chung Soo Kim ,  Do Young Cho ,  Jong Lee Park ,  Hwan Woong Lee

Inventor： Chung Soo Kim ,  Do Young Cho ,  Jong Lee Park ,  Hwan Woong Lee

IPC: H01J65/00

CPC classification number: H01J61/305 ,  G02F1/133604 ,  H01J65/00

Abstract: A flat fluorescent lamp which can be used with an LCD display includes a plurality of discharge channels. Pairs of electrodes are formed on both ends of the discharge channels. Each of the plurality of channels has an emitting section at the middle, and electrode sections on both ends thereof. A width of the electrode sections is the same as that of the emitting section. However, a height of the electrode sections is greater than a height of the emitting section, resulting in the electrode section having a cross-sectional area that is larger than that of the emitting section.

Abstract translation: 可以与LCD显示器一起使用的平面荧光灯包括多个放电通道。 一对电极形成在排出通道的两端。 多个通道中的每一个在中间具有发射部分，其两端具有电极部分。 电极部的宽度与发光部的宽度相同。 然而，电极部分的高度大于发射部分的高度，导致电极部分的横截面面积大于发射部分的横截面面积。

公开(公告)号：US07084583B2

公开(公告)日：2006-08-01

申请号：US10481110

申请日：2001-06-25

Applicant: Jeong-Wook Hur ,  Jong-Lee Park ,  Hwan-Woong Lee ,  Sung-Kyoo Lim

Inventor： Jeong-Wook Hur ,  Jong-Lee Park ,  Hwan-Woong Lee ,  Sung-Kyoo Lim

IPC: H05B37/02 ,  G05F1/00

CPC classification number: H01J61/307 ,  G02F1/133604 ,  G02F2001/133612 ,  H01J61/26 ,  H05B41/00 ,  H05B41/2806 ,  H05B41/2824 ,  Y02B20/186 ,  Y02B20/22

Abstract: The present invention relates to an external electrode fluorescent lamp which can provide higher degree of and more improved uniformity of brightness than those of conventional ones, and to a LCD back light unit using the external electrode fluorescent lamp. The present invention also relates to an equipment and a driving device to adapt the LCD back light unit. The external electrode fluorescent lamp of the present invention is comprising: an upper panel of lamp which is serpentine shaped; a lower panel which is planar shaped and to be combined with the upper panel to make channels between the upper panel and the low panel; and external electrodes which are located at the two extreme sides at the surface of the upper panel.

Abstract translation: 本发明涉及能够提供比常规亮度更高程度和更好的亮度均匀性的外部电极荧光灯以及使用外部电极荧光灯的LCD背光单元。 本发明还涉及一种适应LCD背光单元的设备和驱动装置。 本发明的外部电极荧光灯包括：蜿蜒形状的灯的上面板; 下面板是平面形状并与上板组合以在上板和低板之间形成通道; 以及位于上面板表面的两个极端侧的外部电极。