公开(公告)号：KR1020090125326A

公开(公告)日：2009-12-07

申请号：KR1020080051381

申请日：2008-06-02

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  정준호 ,  박지웅

IPC: G02F1/1343

CPC classification number: G02F1/134363 ,  G02F1/13718 ,  G02F2201/123

Abstract: PURPOSE: An IPS(In-Plane Switching) LCD(Liquid Crystal Display) using a cholesteric blue phase liquid crystal having optical homogeneity is provided to supply LCD having the driving voltage of many voltage by applying the liquid crystal in a two transistor IPS mode and stabilize cholesteric blue phase liquid crystal through UV(Ultraviolet) curing operation. CONSTITUTION: Transparency or an opaque common signal line(4) is formed on a lower transparent substrate on a layer such as a gate bus line(3). After the insulating layer is covered on the common signal line, a data bus line(1) is formed on the insulating layer. The pixel electrode separates in the formation of the pixel electrode from a first pixel electrode(6) and a second pixel electrode. The voltage of the different polarity is applied through a TFT(Thin Film Transistor) connected to each pixel electrode to the first pixel electrode and the second pixel electrode.

Abstract translation: 目的：提供使用具有光学均匀性的胆甾型蓝相液晶的IPS（平面切换）LCD（液晶显示器），通过以双晶体管IPS模式施加液晶来提供具有许多电压的驱动电压的LCD， 通过UV（紫外）固化操作稳定胆甾型蓝相液晶。 构成：在诸如栅极总线（3）的层上的下透明基板上形成透明度或不透明公共信号线（4）。 在公共信号线上覆盖绝缘层之后，在绝缘层上形成数据总线（1）。 像素电极在像素电极的形成中与第一像素电极（6）和第二像素电极分离。 通过连接到每个像素电极的TFT（薄膜晶体管）向第一像素电极和第二像素电极施加不同极性的电压。

公开(公告)号：KR1020090026840A

公开(公告)日：2009-03-16

申请号：KR1020070091869

申请日：2007-09-11

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  황성진 ,  정연학 ,  안영주

IPC: G02F1/1335

CPC classification number: G02F1/133555 ,  G02F1/133514 ,  G02F1/1343 ,  G02F1/136209

Abstract: A method of manufacturing a transflective liquid crystal display device is provided to increase a surface flatting degree in an upper display plate, thereby making liquid particles to move stably. A polarizing plate(10a) is positioned in the lowest part of an upper display plate. An upper insulating substrate(20a) is positioned on the polarizing plate of the upper display plate. A light shielding member(80) is positioned on the upper insulating substrate. An alignment film(50a) is positioned on a color filter. Liquid crystal positioned on the alignment layer is inserted into the liquid crystal layer(70).

Abstract translation: 提供半透射型液晶显示装置的制造方法，以增加上显示板的表面平坦化度，使液体粒子稳定地移动。 偏振板（10a）位于上显示板的最下部。 上绝缘基板（20a）位于上显示板的偏振片上。 遮光构件（80）位于上绝缘基板上。 取向膜（50a）位于滤色器上。 位于取向层上的液晶被插入到液晶层（70）中。

公开(公告)号：KR1020080101270A

公开(公告)日：2008-11-21

申请号：KR1020070047808

申请日：2007-05-16

Applicant: 삼성디스플레이 주식회사 ,  전북대학교산학협력단

Inventor： 이승희 ,  유재진 ,  유승후

IPC: G02F1/1343

CPC classification number: G02F1/134309 ,  G02F1/1337 ,  G02F1/134336 ,  G02F2001/133742 ,  G02F2201/40

Abstract: A liquid crystal display device is provided to improve the aperture ratio by reducing the signal delay and light leakage. A first substrate comprises a gate line(121), a data line(141) which are intersecting with the gate line, a switching element which are operated by the signal applied to the gate line and data line, and pixel electrode(161) which is connected to the switching element electrically. A second substrate comprises common electrode. The common electrode connects the pixel electrode and a first part(251a) which is facing the pixel electrode. One of the gate line and the data line is piled up with a second part(251b).

Abstract translation: 提供了一种通过减少信号延迟和漏光来提高开口率的液晶显示装置。 第一基板包括栅极线（121），与栅极线相交的数据线（141），由施加到栅极线和数据线的信号操作的开关元件和像素电极（161），其中 电连接到开关元件。 第二基板包括公共电极。 公共电极连接像素电极和面向像素电极的第一部分（251a）。 栅极线和数据线之一与第二部分（251b）堆积。

公开(公告)号：KR100865843B1

公开(公告)日：2008-10-29

申请号：KR1020070055821

申请日：2007-06-08

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  임영진 ,  정연학 ,  김미영

IPC: G02F1/1343

CPC classification number: G02F1/133555 ,  G02F1/133528 ,  G02F2001/133548 ,  G02F2001/134318 ,  G02F2001/134372

Abstract: A single gap transflective fringe-field switching display is provided to solve the different response time, between the reflective region and the light-transmitting region and double gamma curve by using the metal grid in the reflective region. A lower plate consists of a lower polarizing plate(9) and a lower glass substrate(8) positioned at the upper part of a lower polarizing plate. A common electrode is formed at an upper part of the lower glass substrate. A micro-pattern metal(4) is formed on a reflective region. An ITO(Indium-Tin Oxide)(7) is formed on a transmission region. A pixel electrode having the same grid exists in the reflective region and transmission region at the upper part of common electrodes. An insulating layer(6) is placed on between the pixel electrode and common electrode. An liquid crystal layer(3) is positioned on the upper part of pixel electrode. A top glass substrate(2) is positioned on the top of the liquid crystal layer, and an upper polarizing plate(1) exists on the top glass substrate. A grid shape common electrode of the reflective region has fringe field effect, as well as the effect of the wire grid polarizer.

Abstract translation: 提供单间隙半透反射条纹场切换显示器，以通过在反射区域中使用金属网格来解决反射区域和透光区域之间的不同响应时间和双伽马曲线。 下板由位于下偏振片的上部的下偏振板（9）和下玻璃基板（8）组成。 公共电极形成在下部玻璃基板的上部。 在反射区域上形成微图案金属（4）。 在透射区域上形成ITO（氧化铟锡）（7）。 具有相同栅格的像素电极存在于公共电极的上部的反射区域和透射区域中。 绝缘层（6）被放置在像素电极和公共电极之间。 液晶层（3）位于像素电极的上部。 顶部玻璃基板（2）位于液晶层的顶部，顶部玻璃基板上存在上偏振板（1）。 反射区域的栅格形状公共电极具有边缘场效应，以及线栅偏振器的影响。

公开(公告)号：KR1020080071255A

公开(公告)日：2008-08-04

申请号：KR1020070009228

申请日：2007-01-30

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  이지연 ,  류제우

IPC: G02F1/1343 ,  G02F1/133

CPC classification number: G02F1/134363 ,  G02F1/1362 ,  G02F2001/134372 ,  G02F2201/123 ,  H01L27/1214

Abstract: An FFS(Fringe Field Switching) LCD(Liquid Crystal Display) is provided to form a common electrode and a pixel electrode in the same plane with respect to first and second electrodes, thereby preventing deterioration of image quality caused by afterimages and flickers. An upper substrate uses a transparent glass substrate or a plastic substrate. A lower substrate uses a transparent glass substrate or a plastic substrate as facing the upper substrate. On the lower substrate, a transparent electrode is divided into upper and lower parts as leaving a space for a gate bus line(2). In one side, a first electrode is disposed as a common electrode(1a) of a plane form and a second electrode is disposed as a pixel electrode(8a) of a slit form. In the other side, a first electrode is disposed as a pixel electrode(8b) of a plane form and a second electrode is disposed as a common electrode(1b) of a slit form. A common bus line(3) is disposed to contact the first common electrode and a partial area directly. On the gate bus line, an active layer(6) is disposed and source/drain electrodes(5) and a data bus line(4) are formed. When applying a gate signal to a cell, signals having different polarities are applied at the first or second pixel electrode of the upper and lower sides within one sub pixel.

Abstract translation: 提供FFS（边缘场切换）LCD（液晶显示器），以在相对于第一和第二电极的同一平面中形成公共电极和像素电极，从而防止由残影和闪烁引起的图像质量的劣化。 上基板使用透明玻璃基板或塑料基板。 下基板使用透明玻璃基板或塑料基板面向上基板。 在下基板上，透明电极被分成上部和下部，留下用于栅极总线（2）的空间。 一方面，第一电极被设置为平面形式的公共电极（1a），并且第二电极被设置为狭缝形式的像素电极（8a）。 另一方面，第一电极被设置为平面形状的像素电极（8b），第二电极被设置为狭缝形式的公共电极（1b）。 公共总线（3）设置成直接接触第一公共电极和局部区域。 在栅极总线上设置有源层（6），形成源极/漏极（5）和数据总线（4）。 当向单元施加栅极信号时，在一个子像素内的上侧和下侧的第一或第二像素电极处施加具有不同极性的信号。

公开(公告)号：KR1020080071254A

公开(公告)日：2008-08-04

申请号：KR1020070009226

申请日：2007-01-30

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  황성한 ,  전연문 ,  류제우

IPC: G02B3/14 ,  G02B3/12

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

Abstract: A full color electrowetting display device is provided to increase an aperture ratio and a definition of the display device by representing colors by pushing oil to a boundary region of a pixel using water. A full color electrowetting display device includes an upper substrate(1), a transparent electrode(2), a pixel wall(3), a water layer(4), a black oil layer(5), a hydrophobic insulator(6), a RGBW color filter(7), a reflective electrode(8), and a lower substrate(9). The plane type transparent electrode is arranged under the upper substrate. The rectangular pixel wall surrounds RGBW pixel regions under the transparent electrode and separates water from oil. The water layer is arranged within the pixel wall. The black oil layer is arranged under the water layer. The hydrophobic insulator is arranged under the black oil layer. The RGBW color filter is arranged under the insulator. The reflective electrode arranged under the color filter. The lower substrate is arranged under the reflective electrode.

Abstract translation: 提供全彩色电润湿显示装置，通过使用水将像素的边界区域推入油来表示颜色来增加显示装置的开口率和定义。 全彩电润湿显示装置包括上基板（1），透明电极（2），像素壁（3），水层（4），黑油层（5），疏水绝缘体（6） RGBW滤色器（7），反射电极（8）和下基板（9）。 平面型透明电极设置在上基板的下方。 矩形像素壁围绕透明电极下的RGBW像素区域，并将水与油分离。 水层布置在像素壁内。 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。 RGBW滤色器布置在绝缘体下方。 反射电极布置在滤色器下方。 下基板布置在反射电极下方。

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：KR1020080040304A

公开(公告)日：2008-05-08

申请号：KR1020060108068

申请日：2006-11-03

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  이지연 ,  류제우

IPC: G02F1/1343

CPC classification number: G02F1/134309 ,  G02F1/136286 ,  G02F2001/134372 ,  G02F2201/123

Abstract: A fringe-field switching LCD(Liquid Crystal Display) is provided to differentiate a width of a pixel electrode and a distance between two pixel electrodes according to a location, thereby preventing a narrow rubbing process margin and a mura fault caused by variation of an electrode width occurring in a process of etching the electrode. A lower substrate uses a transparent glass substrate or a plastic substrate. A common electrode(4) is formed on the lower substrate in a plane or pattern form. A gate electrode(3), an insulating film, a semiconductor layer(5), a signal line(1), a source/drain layer(2) and an insulating layer are formed. A pixel electrode(6) is patterned on the common electrode as leaving a space for the insulating layer. A horizontal LC alignment layer is collated lass than thousands Å on both substrates, and rubbed in directions opposite to each other or in the same direction. A cell gap between the upper and lower substrates is in a range of 2~6mum. A phase retardation value of LC is in a range of 0.2~0.5mum. A width(8) of the pixel electrode is in a range of 2~10mum, and a distance(7) between the pixel electrodes is in a range of 2~15mum. A thickness of a transparent electrode is thinner than 2000 Å. The insulating film between the electrodes is thicker than 1000 Å. A tilt angle of the pixel electrode is in a range of 1~45 degrees. In the upper and lower substrate, a polarizing plate where transmitting axes cross is used. One of the axes is consistent with an optical axis of the LC. The width of the pixel electrode and the distance between the pixel electrodes are different according to a location.

Abstract translation: 提供了一种边缘场切换LCD（液晶显示器），以根据位置来区分像素电极的宽度和两个像素电极之间的距离，从而防止由电极的变化引起的较小的摩擦处理余量和毛面故障 在蚀刻电极的过程中发生宽度。 下基板使用透明玻璃基板或塑料基板。 公共电极（4）以平面或图案形式形成在下基板上。 形成栅电极（3），绝缘膜，半导体层（5），信号线（1），源/漏层（2）和绝缘层。 在公共电极上形成像素电极（6），留下用于绝缘层的空间。 水平LC取向层在两个基板上比成千上万的相互比较，并且在彼此相反的方向上或沿相同的方向摩擦。 上下基板之间的电池间隙在2〜6μm的范围内。 LC的相位延迟值在0.2〜0.5μm的范围内。 像素电极的宽度（8）在2〜10μm的范围内，像素电极之间的距离（7）在2〜15μm的范围内。 透明电极的厚度小于2000埃。 电极之间的绝缘膜厚于1000。 像素电极的倾斜角度在1〜45度的范围内。 在上下基板中，使用透射轴交叉的偏振片。 其中一个轴与LC的光轴一致。 像素电极的宽度和像素电极之间的距离根据位置而不同。

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：KR1020070023248A

公开(公告)日：2007-02-28

申请号：KR1020050077594

申请日：2005-08-24

Applicant: 전북대학교산학협력단

Inventor： 이승희 ,  유인호

IPC: G02F1/1343

CPC classification number: G02F1/134309 ,  G02F1/133784 ,  G02F1/1341 ,  G02F2001/134372

Abstract: 본 발명은 프린즈필드스위칭(FFS:Fringe-Field Switching) 모드를 이용한 액정표시소자(LCD: Liquid Crystal Display)에 관한 것으로서, FFS 모드의 두층의 투명전극 구조에 있어서, 하나의 구조가 plane형태를 띠고 다른 하나의 구조가 닫힌 "日" 형태의 slit 또는 finger형태의 전극 구조를 가질 때 전극 구석 부분에서 reverse twist가 발생하고 이로 인하여 빛이 투과되지 않는 disclination line이 발생한다. 이는 투과율 저하와 구동전압의 상승을 가져오는데, 본 발명에서는 slit전극 구조를 열린 형태의 "ㄹ" 자 구조 형태를 채택하여 종래 disclination line의 발생율을 반으로 줄여 투과율 상승과 구동전압 저하 효과를 가져왔다.
액정디스플레이, fringe-field switching, 투과율, reverse twist