公开(公告)号：KR1020090027038A

公开(公告)日：2009-03-16

申请号：KR1020070092209

申请日：2007-09-11

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  정연학 ,  임영진 ,  정은

IPC: G02F1/1335

CPC classification number: G02F1/133555 ,  G02F1/116 ,  G02F2001/133638 ,  G02F2001/134372

Abstract: A single gap transflective liquid crystal display is provided to manufacture the single gap transflective liquid crystal display by making initial phase delay values of liquid crystal of a transmitting area and a reflecting area different, thereby removing complexity of the manufacture. A transparent electrode(3) of a conductive electrode type is coated on only a reflecting region of an upper glass substrate lower part. A common electrode(11) of the conductive electrode type is put on a transmitting area of the lower glass substrate upper part. The common electrode is coated only on the transmitting area. Also, the common electrode is coated on the reflecting area to control Cst as much as desired. The TFT can be placed in one of the reflecting area or a transmitting area because a pixel electrode and the reflecting electrode are directly connected.

Abstract translation: 提供单间隙透反液晶显示器，通过使透射区域和反射区域的液晶的初始相位延迟值不同，制造单间隙透反射液晶显示器，从而消除制造的复杂性。 仅在上玻璃基板下部的反射区域上涂布导电电极型透明电极（3）。 导电电极类型的公共电极（11）放置在下部玻璃基板上部的透射区域上。 公共电极仅涂覆在透射区域上。 此外，公共电极被涂覆在反射区域上以根据需要尽可能多地控制Cst。 由于像素电极和反射电极直接连接，所以可以将TFT放置在反射区域或透射区域中的一个中。

公开(公告)号：KR1020090128927A

公开(公告)日：2009-12-16

申请号：KR1020080054915

申请日：2008-06-12

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  정은 ,  임영진

IPC: G02F1/1343

CPC classification number: G02F1/134309 ,  G02F2001/134372 ,  G02F2201/121 ,  G02F2201/123

Abstract: PURPOSE: A viewing angle control LCD using a single panel of an FFS mode is provided to control view angle of the LCD using single panel to wide-viewing angle and narrow visual field angle according to the use of a user without the reduction of the aperture ratio. CONSTITUTION: An upper plate(2) is located under an upper polarizing plate(1). A second common electrode(3) is located under the upper substrate. A vertical alignment layer locates under the second common electrode. A hybrid liquid crystal layer(4) locates under the vertical alignment layer. The top of the hybrid liquid crystal layer is perpendicularly aligned and aligns the lower part of the hybrid liquid crystal layer. The horizontal alignment layer locates under the hybrid liquid crystal layer.

Abstract translation: 目的：提供使用FFS模式的单面板的视角控制LCD，以根据用户的使用，使用单面到宽视角和窄视角控制LCD的视角，而不会减小光圈 比。 构成：上板（2）位于上偏振板（1）的下方。 第二公共电极（3）位于上基板的下方。 垂直取向层位于第二公共电极下方。 混合液晶层（4）位于垂直取向层下方。 混合液晶层的顶部垂直取向并对准混合液晶层的下部。 水平取向层位于混合液晶层的下方。

公开(公告)号：KR1020080071250A

公开(公告)日：2008-08-04

申请号：KR1020070009218

申请日：2007-01-30

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  황성한 ,  김연식 ,  정은

IPC: G02B3/14 ,  G02B3/12

CPC classification number: G02B3/14 ,  G02B26/005 ,  G02F1/133516 ,  G02F1/133555 ,  G02F1/13394 ,  G02F1/13439 ,  G02F1/13458

Abstract: An electrowetting display device is provided to represent a clear image with vivid colors by arranging a color filter on a lower substrate. An electrowetting display device includes an upper substrate(1), a transparent electrode(2), a pixel wall(4), a water layer(3), a black oil layer(5), a hydrophobic insulator(6), RGB color filter regions(7,8,9), a reflective electrode(10), and a lower substrate(11). The plane type transparent electrode is arranged under the upper substrate. The pixel wall surrounds the water and oil layers under the transparent electrode. The water layer is arranged between the upper and lower substrates. The black oil layer is arranged under the water layer. The hydrophobic insulator is arranged under the black oil layer. The RGB color filter regions are arranged under the insulator. The reflective electrode is patterned in a straight line on respective pixels under the color filter regions. The lower substrate is arranged under the reflective electrode.

Abstract translation: 提供一种电润湿显示装置，通过在下基板上布置滤色器来表现具有鲜艳色彩的清晰图像。 一种电润湿显示装置，包括上基板（1），透明电极（2），像素壁（4），水层（3），黑油层（5），疏水绝缘体（6） 过滤器区域（7,8,9），反射电极（10）和下基板（11）。 平面型透明电极设置在上基板的下方。 像素壁围绕透明电极下面的水和油层。 水层布置在上下基板之间。 黑色油层布置在水层下面。 疏水绝缘子布置在黑色油层下方。 RGB滤色器区域布置在绝缘体下方。 反射电极在滤色器区域下方的各像素上以直线图案化。 下基板布置在反射电极下方。

公开(公告)号：KR100752501B1

公开(公告)日：2007-08-27

申请号：KR1020060064667

申请日：2006-07-11

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  임영진 ,  정은

IPC: G02F1/1335

Abstract: An LCD(Liquid Crystal Display) for controlling a viewing angle is provided to adequately control a wide viewing angle and a narrow viewing angle of a predetermined screen by controlling a tilt angle of liquid crystal molecules through a vertical electric field. A first upper substrate is disposed under an upper polarizing plate. A first common electrode is formed under the first upper substrate. A horizontally aligned liquid crystal layer is disposed under the first common electrode and has a phase retardation value from 0.10 micrometer to 0.60 micrometer. A first lower substrate is disposed under the horizontally aligned liquid crystal layer. A first pixel electrode is disposed on the first lower substrate. A second upper substrate is disposed under the first pixel electrode. A second common electrode is formed under the second upper substrate. A vertically aligned liquid crystal layer is disposed under the second common electrode and has a phase retardation value from 0.20 micrometer to 0.55 micrometer. A second lower substrate is disposed under the horizontally aligned liquid crystal layer. A second pixel electrode is disposed on the second lower substrate. A negative C plate film is disposed under the second pixel electrode. A lower polarizing plate is disposed under the negative C plate film.

Abstract translation: 提供用于控制视角的LCD（液晶显示器），以通过经由垂直电场控制液晶分子的倾斜角度来适当地控制预定屏幕的宽视角和窄视角。 第一上基板设置在上偏光板下方。 第一公共电极形成在第一上基板下方。 水平排列的液晶层设置在第一公共电极下方并具有0.10微米到0.60微米的相位延迟值。 第一下基板设置在水平排列的液晶层下方。 第一像素电极设置在第一下基板上。 第二上基板设置在第一像素电极下方。 第二公共电极形成在第二上基板下方。 垂直取向的液晶层设置在第二公共电极下方，并具有从0.20微米到0.55微米的相位延迟值。 第二下基板设置在水平排列的液晶层下面。 第二像素电极设置在第二下基板上。 在第二像素电极下方设置负C板膜。 负C板下设置下偏光板。

公开(公告)号：KR100966230B1

公开(公告)日：2010-06-25

申请号：KR1020080054915

申请日：2008-06-12

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  정은 ,  임영진

IPC: G02F1/1343

Abstract: 본 발명은 하이브리드 배향된 액정을 사용한 프린지 필드 스위칭(FFS: Fringe-Field Switching) 모드의 단일 패널을 이용한 시야각 조절 액정 표시 장치 대해 개시한다. 개시된 본 발명은 기존 FFS 모드의 전극구조에 상부기판에 상부 공통전극이 추가적으로 배치되어 있는 구조로, 하부기판의 액정들은 수평배열이고 상부기판의 액정들은 수직배열로 하이브리드 배향된 액정층으로 이루어져 있다. 하부 기판의 화소전극과 하부 공통전극에 의해 구동될 시에는 하이브리드 배열된 액정의 좁은 시야각 특성으로 인해 협시야각이 나타나고, 상부 공통전극과 하부 공통전극 사이의 발생한 수직 전기장에 의해 유전율 이방성이 음인 액정이 기판에 평행하게 누운 상태에서 하부기판에 위치한 화소전극과 하부 공통전극에 의해 구동 될 시에는 광시야각이 나타나게 되는 원리이다. 본 시야각 조절 액정 표시 장치는 단일 패널을 이용하였기 때문에 두께가 얇고, 경량이며, 개구율 감소 없이 시야각 조절이 가능하다는 것을 그 장점으로 한다.
시야각 조절, 액정 표시 장치, 단일 패널, 광시야각, 협시야각

公开(公告)号：KR100928146B1

公开(公告)日：2009-11-24

申请号：KR1020070092209

申请日：2007-09-11

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  정연학 ,  임영진 ,  정은

IPC: G02F1/1335

Abstract: A single gap transflective liquid crystal display is provided to manufacture the single gap transflective liquid crystal display by making initial phase delay values of liquid crystal of a transmitting area and a reflecting area different, thereby removing complexity of the manufacture. A transparent electrode(3) of a conductive electrode type is coated on only a reflecting region of an upper glass substrate lower part. A common electrode(11) of the conductive electrode type is put on a transmitting area of the lower glass substrate upper part. The common electrode is coated only on the transmitting area. Also, the common electrode is coated on the reflecting area to control Cst as much as desired. The TFT can be placed in one of the reflecting area or a transmitting area because a pixel electrode and the reflecting electrode are directly connected.

Abstract translation: 通过使透射区域和反射区域的液晶的初始相位延迟值不同，提供单间隙透反式液晶显示器来制造单间隙半透射反射式液晶显示器，从而消除了制造的复杂性。 导电电极型的透明电极（3）仅涂布在上玻璃基板下部的反射区域上。 导电电极型的公共电极（11）被放置在下玻璃基板上部的透射区域上。 公共电极只涂在透射区域。 而且，公共电极涂覆在反射区域上以根据需要控制Cst。 由于像素电极和反射电极直接连接，TFT可以被放置在反射区域或透射区域中的一个中。

公开(公告)号：KR100851743B1

公开(公告)日：2008-08-11

申请号：KR1020060132311

申请日：2006-12-22

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  임영진 ,  정은

IPC: G02F1/1343 ,  G02F1/1335

Abstract: 본 발명은 패턴 된 수직배향(PVA: patterned vertical alignment) 액정디스플레이의 시야각 조절 장치에 관한 것으로, 소정 화상를 표현하는 전극과 시야각 조절용 전극을 하나의 기판에 따로 패턴 하는 방식을 적용하였다. 전극 구조에 있어서, 상부기판의 일부 영역에 소정화면을 표현하는 제 1 공통전극을 일반적인 PVA 모드의 전극을 패턴 하는 방식으로 형성하였고, 나머지 시야각을 조절하는 부분은 평면형태로 제 2 공통전극을 형성하였다. 이때, 두 공통전극은 연결되어 있다. 상부기판과 마주보도록 하부 기판이 대응되어 있고, 이 기판의 제 1 공통 전극과 마주보고 있는 일부 영역에 제 1 화소 전극이 상부 제 1 공통전극과 같은 방식으로 형성되어 있고, 제 2 공통전극과 마주보고 있는 나머지 영역에 제 2 화소 전극은 액정 방향자가 좌우나 상하로 눕도록 전극을 패턴하여 형성한다. 이러한 액정 표시장치의 제 1 공통전극과 제 2 공통전극에 같은 크기의 일정한 전압을 인가시키고, 제 1 화소 전극에 전압을 다양하게 인가함으로써 제 1 공통전극과 제 1 화소 전극의 전압 차에 의해 생기는 수직 전기장에의해 액정 디스플레이를 구현하고, 제 2 화소 전극에 전압을 조절함으로써 제 2 화소 전극과 제 2 공통전극의 전압 차에 의해 생기는 수직전기장에 의해 광시야각 또는 협소한 시야각을 적절히 조절할 수 있다.
패턴된 수직배향 액정 디스플레이, 광시야각, 협시야각, 시야각 조절

公开(公告)号：KR100835112B1

公开(公告)日：2008-06-03

申请号：KR1020070009222

申请日：2007-01-30

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  임영진 ,  정은

IPC: G02F1/1343

CPC classification number: G02F1/134309 ,  G02F1/133528 ,  G02F1/133707 ,  G02F2001/133531 ,  G02F2001/134345 ,  G02F2001/134372

Abstract: A fringe-field switching LCD(Liquid Crystal Display) is provided to minimize a degree of color shift in a viewing angle direction by differently patterning a size and direction of a pixel electrode of two domains. A lower substrate uses a transparent glass substrate or a plastic substrate. A common electrode(1) patterns a transparent electrode of a first layer, disposed in an upper part of the lower substrate, in a plane form. A pixel electrode(2) is patterned on the common electrode as leaving a space for an insulating layer so as for a second transparent electrode to have different angles and directions based on the center of a pixel horizontal direction. An inclination angle of the pixel electrode of one domain is about 1 to 44 degrees based on a gate bus line. An inclination angle of the pixel electrode of the other domain is about -2 to -45 degrees. The inclination angles of the pixel electrode of the two domains are asymmetric, and the pixel electrode is patterned to have a different absolute value. An upper substrates uses a transparent glass substrate or a plastic substrate. Horizontal LC alignment layers are coated on the both substrates and rubbed in opposite or the same direction. A cell gap between the upper and lower substrates is about 2-6mum. A retardation value of LC is about 0.2-0.5mum. A width of the pixel electrode is 2-10mum. A distance between the pixel electrodes is about 3-15mum. A thickness of the transparent electrode is thinner than 2000Å. A thickness of the insulating layer between electrodes is thicker than 1000Å. A polarizing plate where transmission axes are crossed is used for the upper and lower substrates. One of the two axes is consistent with an optical axis of the LC.

Abstract translation: 提供边缘场切换LCD（液晶显示器）以通过不同地构图两个畴的像素电极的尺寸和方向来最小化视角方向上的色移程度。 下基板使用透明玻璃基板或塑料基板。 公共电极（1）以平面形式设置在下基板的上部的第一层的透明电极。 在公共电极上形成像素电极（2），留下用于绝缘层的空间，以使第二透明电极基于像素水平方向的中心具有不同的角度和方向。 基于栅极总线，一个畴的像素电极的倾斜角为约1至44度。 另一个畴的像素电极的倾斜角为约-2至-45度。 两个畴的像素电极的倾斜角度是不对称的，并且像素电极被图案化以具有不同的绝对值。 上基板使用透明玻璃基板或塑料基板。 将水平LC取向层涂覆在两个基底上并在相反或相同的方向摩擦。 上下基板之间的电池间隙约为2-6μm。 LC的延迟值约为0.2-0.5μm。 像素电极的宽度为2-10μm。 像素电极之间的距离约为3-15μm。 透明电极的厚度小于2000。 电极之间的绝缘层厚度大于1000。 上下基板使用透射轴交叉的偏光板。 两个轴之一与LC的光轴一致。

公开(公告)号：KR1020080084196A

公开(公告)日：2008-09-19

申请号：KR1020070025536

申请日：2007-03-15

Applicant: 전북대학교산학협력단

Inventor： 정연학 ,  이승희 ,  임영진 ,  정은

IPC: G02F1/1335 ,  G02F1/1337

CPC classification number: G02F1/133555 ,  G02F1/133707 ,  G02F1/133753 ,  G02F2001/133638 ,  G02F2001/133742

Abstract: A high aperture and wide viewing single gap transflective LCD(Liquid Crystal Display) is provided to improve an aperture ratio by disposing secondary capacitance in a voltage-reflectance curve, thereby maximizing aperture ratios of the voltage-reflectance curve and a voltage-transmittance curve. One pixel is divided into a voltage-reflectance curve and a voltage-transmittance curve. A cell gap of the voltage-reflectance curve and the voltage-transmittance curve is almost equally formed. A reflectance plate(2) functioning as a counter electrode and plural transparent pixel electrodes(4) of slit and bar types are formed in upper end of the voltage-reflectance curve as leaving a space for a passivation layer(3). A fringe field is formed according as a vertical filed component and a horizontal field component coexist when voltage is applied. In the voltage-transmittance curve, a pixel electrode of a plate shape is formed in a lower array substrate(1). In an upper substrate(9), a transparent counter electrode(8) is formed in a location of the voltage-transmittance curve. By coating vertical alignment layers to both of the upper and lower substrates, LC is vertically erected before applying initial voltage. The LC has negative dielectric anisotropy.

Abstract translation: 提供了一种高孔径和宽视角单隙透反射LCD（液晶显示器），通过在电压反射曲线中设置二次电容来提高开口率，从而最大化电压 - 反射率曲线和电压 - 透射率曲线的开口率。 一个像素被分为电压反射曲线和电压透过率曲线。 电压反射曲线和电压 - 透射率曲线的单元间隙几乎相等地形成。 在电压反射曲线的上端形成有用作对置电极的反射板（2）和多个狭缝和棒状透明像素电极（4），留下用于钝化层（3）的空间。 当施加电压时，根据垂直场分量形成条纹场，并且水平场分量共存。 在电压 - 透射率曲线中，在下部阵列基板（1）中形成板状的像素电极。 在上基板（9）中，在电压 - 透射率曲线的位置形成透明对电极（8）。 通过将垂直取向层涂覆到上基板和下基板两者，LC在施加初始电压之前垂直竖立。 LC具有负介电各向异性。

公开(公告)号：KR1020080058541A

公开(公告)日：2008-06-26

申请号：KR1020060132311

申请日：2006-12-22

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  임영진 ,  정은

IPC: G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/1343 ,  G02F1/1323 ,  G02F1/133514 ,  G02F1/1337 ,  G02F2201/121 ,  G02F2201/123

Abstract: A controllable viewing angle patterned vertical alignment LCD(Liquid Crystal Display) is provided to divide the area of a panel into an area for displaying a predetermined screen and an area for controlling a viewing angle. A lower substrate uses a transparent glass substrate or a plastic substrate. The first pixel electrode(15) is patterned to an upper partial area of the lower substrate at a constant angle. The second pixel electrode(15') is patterned on the remnant areas of the lower substrate toward left and right or up and down directions. A vertical alignment layer is located at the upper portion of the first and second pixel electrodes. A liquid crystal layer is arrayed vertically on the upper portion of the vertical alignment layer and has a negative permittivity anisotropy. The first common electrode is patterned on the lower portion of an upper substrate and has an electrode with the same size of the first pixel electrode. The second common electrode is formed on the remnant lower portion of the upper substrate by a plane shape and not separated from the first common electrode. A vertical alignment layer is located at the upper portion of the first and second common electrodes. Two pair of transistors are driven by two signal lines(11,11').

Abstract translation: 提供了可控视角图案化的垂直对准LCD（液晶显示器），以将面板的面积划分为用于显示预定屏幕的区域和用于控制视角的区域。 下基板使用透明玻璃基板或塑料基板。 第一像素电极（15）以恒定角度被图案化到下基板的上部部分区域。 第二像素电极（15'）在下基板的残留区域上朝向左右或上下方向图案化。 垂直取向层位于第一和第二像素电极的上部。 液晶层垂直排列在垂直取向层的上部，具有负介电常数各向异性。 第一公共电极在上基板的下部被图案化并且具有与第一像素电极具有相同尺寸的电极。 第二公共电极通过平面形状形成在上基板的残留下部，并且不与第一公共电极分离。 垂直取向层位于第一和第二公共电极的上部。 两对晶体管由两根信号线（11,11'）驱动。