公开(公告)号：US20090066882A1

公开(公告)日：2009-03-12

申请号：US11920323

申请日：2006-05-09

申请人： Janez Pirs ,  Silvija Pirs ,  Bojan Marin ,  Andrej Vrecko

发明人： Janez Pirs ,  Silvija Pirs ,  Bojan Marin ,  Andrej Vrecko

IPC分类号： G02F1/1347

CPC分类号： G02F1/1397 ,  G02F1/13471

摘要： A new concept of the LCD light-switching optical filter allowing for very high, electrically controlled, continuously variable light attenuation (up to ≧100,000) optimized/symmetrized for the light incidence along the normal to the LCD plane is proposed. The new LCD light-switching optical filter also exhibits very low light attenuation dependence for the oblique incidence of light within a limited cone of angles off the normal incidence direction in compliance with the international safety and quality regulation EN 379 for personal protection equipment.According to the invention the problem is solved by specific, novel modification of the general principle of highly twisted nematic LCDs, allowing for the adaptation of the light transmission/driving voltage characteristics to specific requirements of the driving electronics as well as “symmetrizing” the overall optical birefringent properties, which in turn results in a high degree of their angular compensation.

摘要翻译： 提出了一种新的LCD开关光学滤波器的概念，其允许对于沿着LCD平面法线的光入射进行优化/对称化，具有非常高的，电控制的，持续可变的光衰减（高达> = 100,000）的新概念。 新型LCD开关光学滤波器对于根据符合国际安全和个人防护设备质量规范EN 379的正常入射方向的有限圆锥内的倾斜入射光，也表现出非常低的光衰弱依赖性。 根据本发明，通过对高扭曲向列型液晶显示器的一般原理的具体的，新颖的修改来解决问题，从而允许将光传输/驱动电压特性适应于驱动电子设备的特定要求以及整体的“对称化” 光学双折射性质，这又导致高度的角度补偿。

公开(公告)号：US08026998B2

公开(公告)日：2011-09-27

申请号：US11920323

申请日：2006-05-09

申请人： Janez Pirs ,  Silvija Pirs ,  Bojan Marin ,  Andrej Vrecko

发明人： Janez Pirs ,  Silvija Pirs ,  Bojan Marin ,  Andrej Vrecko

IPC分类号： G02F1/1335

CPC分类号： G02F1/1397 ,  G02F1/13471

摘要： A new concept of the LCD light-switching optical filter allowing for very high, electrically controlled, continuously variable light attenuation (up to ≧100.000) optimized/symmetrized for the light incidence along the normal to the LCD plane is proposed. The new LCD light-switching optical filter also exhibits very low light attenuation dependence for the oblique incidence of light within a limited cone of angles off the normal incidence direction in compliance with the international safety and quality regulation EN 379 for personal protection equipment.According to the invention the problem is solved by specific, novel modification of the general principle of highly twisted nematic LCDs, allowing for the adaptation of the light transmission/driving voltage characteristics to specific requirements of the driving electronics as well as “symmetrizing” the overall optical birefringent properties, which in turn results in a high degree of their angular compensation.

摘要翻译： 提出了一种新的LCD开关光学滤波器的概念，其允许对沿着LCD平面法线的光入射进行优化/对称化的非常高的，电控制的，连续可变的光衰减（高达≥100000）。 新型LCD开关光学滤波器对于根据符合国际安全和个人防护设备质量规范EN 379的正常入射方向的有限圆锥内的倾斜入射光，也表现出非常低的光衰弱依赖性。 根据本发明，通过对高扭曲向列型液晶显示器的一般原理的具体的，新颖的修改来解决问题，从而允许将光传输/驱动电压特性适应于驱动电子设备的特定要求以及整体的“对称化” 光学双折射性质，这又导致高度的角度补偿。

公开(公告)号：US07420631B2

公开(公告)日：2008-09-02

申请号：US10556763

申请日：2004-04-14

申请人： Janez Pirs ,  Matej Bazec ,  Silvija Pirs ,  Bojan Marin ,  Andrej Vrecko

发明人： Janez Pirs ,  Matej Bazec ,  Silvija Pirs ,  Bojan Marin ,  Andrej Vrecko

IPC分类号： G02F1/1335

CPC分类号： G02F1/1397 ,  G02F1/13306 ,  G02F1/13363 ,  G02F2001/133531 ,  G02F2413/01 ,  G02F2413/11 ,  G02F2413/14

摘要： A new concept of the normally open LCD light switching element is proposed, which allows for the superior angular compensation for the light attenuation by using a single simple negative bireffingent c-plate compensation layer. The concept is based on the simultaneous use of highly angularly symmetric STN LC-configuration (preferably 180° twist) and maximal use of the single (preferably ordinary ray) light propagation mode. The solution is best suitable for various light switching applications like LCD automatic protective welding light filters, as well as for multi-segment large display panels, where it provides for excellent uniformity of the light-attenuation in the “dark” state.

摘要翻译： 提出了常开LCD光开关元件的新概念，通过使用单个简单的负双色C板补偿层，可以实现对光衰减的优异角补偿。 该概念基于同时使用高度角度对称的STN LC配置（优选180°扭曲）和最大程度地使用单个（优选普通光线）光传播模式。 该解决方案最适用于各种光开关应用，如LCD自动保护焊接光滤波器，以及多段大显示面板，可在“暗”状态下提供优异的光衰均匀均匀性。

公开(公告)号：US20070273811A1

公开(公告)日：2007-11-29

申请号：US10556763

申请日：2004-04-14

申请人： Janez Pirs ,  Matej Bazec ,  Silvija Pirs ,  Bojan Marin ,  Andrej Vrecko

发明人： Janez Pirs ,  Matej Bazec ,  Silvija Pirs ,  Bojan Marin ,  Andrej Vrecko

IPC分类号： G02F1/1335

CPC分类号： G02F1/1397 ,  G02F1/13306 ,  G02F1/13363 ,  G02F2001/133531 ,  G02F2413/01 ,  G02F2413/11 ,  G02F2413/14

摘要： A new concept of the normally open LCD light switching element is proposed, which allows for the superior attenuation by using a single simple negative bireffingent c-plate compensation layer. The concept is based on the simultaneous use of highly angularly symmetric S LC-configuration (preferably 180° twist) and maximal use of the single (preferably ordinary ray) light propagation mode. The solution is best suitable for various light switching applications like LCD automatic protective welding light filters, as well as for multi-segment large display panels, where it provides for excellent uniformity of the light-attenuation in the “dark” state.

摘要翻译： 提出了一种常开LCD开关元件的新概念，通过使用单个简单的负双色C板补偿层，可以实现优异的衰减。 该概念基于同时使用高度角度对称的S LC配置（优选180°扭曲）和最大程度地使用单个（优选普通光线）光传播模式。 该解决方案最适用于各种光开关应用，如LCD自动保护焊接光滤波器，以及多段大显示面板，可在“暗”状态下提供优异的光衰均匀均匀性。