公开(公告)号：US08502942B2

公开(公告)日：2013-08-06

申请号：US13679932

申请日：2012-11-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hee-Wook Do ,  Ki-Chul Shin ,  Kwang-Hyun Kim ,  Ji-Hoon Kim

IPC: G02F1/1335

CPC classification number: G02F1/13362 ,  G02F1/13363 ,  G02F1/1393

Abstract: A flat panel display device is provided with an increased viewing angle having good dark versus light imaging contrast. The display device includes a display panel, a first optical unit, and a second optical unit. The display panel includes a liquid crystal layer that is driven in a vertical alignment mode. The first optical unit includes a negative C-plate and a first polarizer having a first absorption axis. The second optical unit includes a biaxial compensation plate having a refractive indices coefficient, (nx−nz)/(nx−ny) of more than 0.45 and less than 0.55, and a second polarizer having a second absorption axis crossing the first absorption axis. The biaxial compensation plate has a refractive indices relationship of nx>nz>ny such that dispersion of polarization states of colored light rays passed through the C-plate and the liquid crystal layer may be minimized and gathered about an extinction point, thereby improving contrast at side viewing angles.

Abstract translation: 平板显示装置具有增强的视角，具有良好的暗对比光成像对比度。 显示装置包括显示面板，第一光学单元和第二光学单元。 显示面板包括以垂直对准模式驱动的液晶层。 第一光学单元包括负C板和具有第一吸收轴的第一偏振器。 第二光学单元包括折射率系数（nx-nz）/（nx-ny）大于0.45且小于0.55的双轴补偿板，以及具有与第一吸收轴交叉的第二吸收轴的第二偏振器。 双轴补偿板的折射率关系为nx> nz> ny，使得通过C板和液晶层的有色光的偏振态的分散可以最小化并聚集在消光点附近，从而改善了对比度 侧视角。

公开(公告)号：US08803777B2

公开(公告)日：2014-08-12

申请号：US13853481

申请日：2013-03-29

Applicant: Samsung Display Co., Ltd.

Inventor： Hee-Wook Do ,  Seung-Beom Park ,  Hoon Kim ,  Hye-Ran You ,  Jian Gang Lu ,  Hee-Seop Kim ,  Young-Chol Yang ,  Seoung-Hoon Lee

IPC: G09G3/36

CPC classification number: G09G3/3659 ,  G09G3/3614 ,  G09G2300/0876 ,  G09G2320/028

Abstract: In a display apparatus having a plurality of pixel parts, each pixel part receives a data signal in response to a present gate signal and charges first and second pixel voltages having the same voltage level. A plurality of voltage controllers includes a level-down part to lower a voltage level of the second pixel voltage using a previous pixel voltage charged in a previous frame in response to a next gate signal and a level-up part to receive the lowered second pixel voltage in response to the next gate signal to boost up a voltage level of the first pixel voltage.

Abstract translation: 在具有多个像素部分的显示装置中，每个像素部分响应于当前的栅极信号接收数据信号，并对具有相同电压电平的第一和第二像素电压充电。 多个电压控制器包括电平降低部分，以响应于下一个栅极信号使用先前的帧中充电的先前像素电压降低第二像素电压的电压电平，以及用于接收降低的第二像素的电平上升部分 响应于下一个栅极信号的电压以升高第一像素电压的电压电平。

公开(公告)号：US20140146273A1

公开(公告)日：2014-05-29

申请号：US14017672

申请日：2013-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： SANG-JAE KIM ,  Boo-Kan Ki ,  Ji-Hye Kim ,  Hee-Wook Do ,  Jae-Won Park ,  Duck-Jong Suh ,  Jung-Hun Lee ,  Hyoung-Joo Lee ,  Seon-Ah Cho ,  Hyo-Sung Hong

IPC: G02F1/1335

CPC classification number: G02F1/133536 ,  G02F1/133524 ,  G02F2001/133531

Abstract: A display panel includes a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer and a viewing angle control layer. The second substrate faces the first substrate. A liquid crystal layer is disposed between the first substrate and the second substrate. A first polarizer is disposed on a lower surface of the first substrate and includes a first polarizing layer and a second polarizing layer stacked on each other. A second polarizer is disposed on an upper surface of the second substrate. A viewing angle control layer is disposed on the first polarizer and is configured to control a viewing angle of a column direction of the display panel.

Abstract translation: 显示面板包括第一基板，第二基板，液晶层，第一偏振器，第二偏振器和视角控制层。 第二基板面向第一基板。 液晶层设置在第一基板和第二基板之间。 第一偏振器设置在第一基板的下表面上，并且包括彼此堆叠的第一偏振层和第二偏振层。 第二偏振器设置在第二基板的上表面上。 视角控制层设置在第一偏振片上，并配置成控制显示面板的列方向的视角。

公开(公告)号：US09436034B2

公开(公告)日：2016-09-06

申请号：US14017672

申请日：2013-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Sang-Jae Kim ,  Boo-Kan Ki ,  Ji-Hye Kim ,  Hee-Wook Do ,  Jae-Won Park ,  Duck-Jong Suh ,  Jung-Hun Lee ,  Hyoung-Joo Lee ,  Seon-Ah Cho ,  Hyo-Sung Hong

IPC: G02F1/1335

CPC classification number: G02F1/133536 ,  G02F1/133524 ,  G02F2001/133531

Abstract: A display panel includes a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer and a viewing angle control layer. The second substrate faces the first substrate. A liquid crystal layer is disposed between the first substrate and the second substrate. A first polarizer is disposed on a lower surface of the first substrate and includes a first polarizing layer and a second polarizing layer stacked on each other. A second polarizer is disposed on an upper surface of the second substrate. A viewing angle control layer is disposed on the first polarizer and is configured to control a viewing angle of a column direction of the display panel.

Abstract translation: 显示面板包括第一基板，第二基板，液晶层，第一偏振器，第二偏振器和视角控制层。 第二基板面向第一基板。 液晶层设置在第一基板和第二基板之间。 第一偏振器设置在第一基板的下表面上，并且包括彼此堆叠的第一偏振层和第二偏振层。 第二偏振器设置在第二基板的上表面上。 视角控制层设置在第一偏振片上，并配置成控制显示面板的列方向的视角。