公开(公告)号：KR1020110015921A

公开(公告)日：2011-02-17

申请号：KR1020090073372

申请日：2009-08-10

Applicant: 엘지디스플레이 주식회사 ,  포항공과대학교 산학협력단

Inventor： 송민섭 ,  전진환 ,  임종호 ,  강익현 ,  양회윤 ,  강봉구 ,  윤재중 ,  최형진

IPC: G02F1/13357 ,  G09G3/36

Abstract: PURPOSE: An edge-type back light unit and a liquid crystal display using the same which is available for local dimming are provided to be manufactured more slimmer and lighter and increase display quality by using a edge-type back light. CONSTITUTION: A back light unit is composed of an upper light guiding plates(LGP1~LGP2), a first reflective body, an upper light source arrays(LED1~4), a lower light guiding plates, a lower light arrays(LED5~8). The upper light guiding plates are partitioned. The first reflective body is formed on at least one side surface among sides facing the upper adjacent light guiding plates. The upper light source arrays illuminates the light to side surface of light guiding plate by being arranged to face the side surface of the light guiding plates. The upper light guiding plates are arranged under the upper light guides and are partitioned into four. The second reflective body is formed on at least one side among sides facing the adjacent lower light guiding plates. The lower light source arrays illuminates the light on one side of the lower light guiding plates by being arranged to face side surface of the lower guiding plates.

Abstract translation: 目的：通过使用边缘型背光，可以制造边缘型背光单元和使用该背光单元的液晶显示器，其可用于局部调光，以使其更薄更轻，并且增加显示质量。 构成：背光单元由上导光板（LGP1〜LGP2），第一反射体，上光源阵列（LED1〜4），下导光板，下光阵列（LED5〜8 ）。 上部导光板被分隔。 第一反射体形成在面向上部相邻导光板的侧面中的至少一个侧面上。 上光源阵列通过布置成面对导光板的侧表面照亮导光板的光到侧表面。 上部导光板配置在上部导光体的下方，分为四部分。 第二反射体形成在面向相邻的下导光板的侧面中的至少一个侧面上。 下部光源阵列通过布置成面向下导向板的侧表面照亮下导光板的一侧的光。

公开(公告)号：KR1020100061241A

公开(公告)日：2010-06-07

申请号：KR1020080120165

申请日：2008-11-28

Applicant: 엘지디스플레이 주식회사 ,  포항공과대학교 산학협력단

Inventor： 박용규 ,  강봉구 ,  송민섭 ,  임종호 ,  정규봉

IPC: G02F1/133 ,  H05B41/288

CPC classification number: Y02B20/202

Abstract: PURPOSE: A backlight unit reducing the power consumption with local drive is provided to implement local drive by dividing lamps along a length direction. CONSTITUTION: A plurality of lamp driving PCB(Printed Circuit Board)(160) is respectively arranged in the lower part of a plurality of lamps(150). A plurality of sections is respectively arranged in a lower part of lamps. High voltage external electrodes are installed on a plurality of sections. A plurality of base-voltage external electrodes is arranged in the other side corresponded to a plurality of high voltage outer electrodes. A switch performs a plurality of base-voltage external electrodes.

Abstract translation: 目的：使用本地驱动器降低功耗的背光单元可通过沿长度方向分隔灯来实现本地驱动。 构成：多个灯（150）的下部分别配置有多个灯驱动PCB（印刷电路板）160。 多个部分分别布置在灯的下部。 高压外部电极安装在多个部分上。 多个基极电压外部电极配置在与多个高压外部电极对应的另一侧。 开关执行多个基极电压外部电极。

公开(公告)号：KR1020090106229A

公开(公告)日：2009-10-08

申请号：KR1020080031796

申请日：2008-04-04

Applicant: 포항공과대학교 산학협력단

Inventor： 박기현 ,  정성훈 ,  김동언 ,  강봉구

IPC: H03M1/66

CPC classification number: H03M1/662 ,  H03M2201/61 ,  H03M2201/62 ,  H03M2201/625 ,  H03M2201/932

Abstract: PURPOSE: A digital to analog converter with high resolution is provided to reduce the area of a circuit by a layout and a manufacturing cost by simplifying a circuit configuration. CONSTITUTION: A first DAC(110) receives a first digital signal and outputs a first analog signal. A second DAC(120) receives a second digital signal and outputs a second digital signal. An attenuator(140) attenuates the second analog signal. A signal synthesizer(150) synthesizes the first analog signal and the attenuated second analog signal.

Abstract translation: 目的：提供高分辨率的数模转换器，通过简化电路配置，通过布局和制造成本降低电路面积。 构成：第一DAC（110）接收第一数字信号并输出​​第一模拟信号。 第二DAC（120）接收第二数字信号并输出​​第二数字信号。 衰减器（140）衰减第二模拟信号。 信号合成器（150）合成第一模拟信号和衰减的第二模拟信号。