公开(公告)号：US20140362092A1

公开(公告)日：2014-12-11

申请号：US13912626

申请日：2013-06-07

Applicant: Pixtronix, Inc.

Inventor： Xiang-Dong Mi ,  Jignesh Gandhi ,  Jianru Shi

IPC: F21V8/00

CPC classification number: G02B6/0068 ,  G02B6/0016 ,  G02B6/002 ,  G02B6/0073 ,  G02B6/0085

Abstract: This disclosure provides systems, methods and apparatus for reducing hotspots in backlit displays. Hotspot artifacts in multi-color backlit displays can be reduced by incorporating optical structures along the edges of light guides incorporated into the backlights. The optical structures are positioned adjacent to light emitting modules that emit light into the light guide. Light emitted from the light emitting modules passes through the optical structures before entering the light guide. Hotspot size can be reduced by appropriately configuring the shapes and sizes of these optical structures. In some implementations, the optical structures may include serrations along the side of the light guide adjacent to the light sources. In some other implementations, the optical structures may include dimples. Size of hotspots may also be reduced by reducing the distance between adjacent light sources of the same color.

Abstract translation: 本公开提供了用于减少背光显示器中的热点的系统，方法和装置。 多色背光显示器中的热点伪像可以通过结合到背光源中的光导入口的边缘并入光学结构来减少。 光学结构被定位成与将光发射到光导中的发光模块相邻。 从发光模块发出的光在进入光导之前通过光学结构。 通过适当地配置这些光学结构的形状和尺寸可以减少热点大小。 在一些实施方案中，光学结构可以包括沿着与光源相邻的光导侧面的锯齿状。 在一些其他实现中，光学结构可以包括凹坑。 也可以通过减少相同颜色的相邻光源之间的距离来减小热点的尺寸。

公开(公告)号：US20140168278A1

公开(公告)日：2014-06-19

申请号：US13713158

申请日：2012-12-13

Applicant: PIXTRONIX, INC.

Inventor： Jianru Shi ,  Edward Buckley ,  Jignesh Gandhi

IPC: G02B26/02 ,  G09G5/10

CPC classification number: G02B26/02 ,  G02B26/04 ,  G09G3/346 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2310/0264 ,  Y10T29/49002

Abstract: Displays having a plurality of shutter assemblies with movable shutters. Typically, the shutter assemblies are arranged in a grid of rows and columns, and the grid has a horizontal axis aligned with a horizontal axis of the display. The shutter assembly is aligned within the grid to have the axis of motion of respective shutters extend at an angle relative to the horizontal axis of the grid. In certain implementations, the shutter assemblies have a rectangular peripheral edge, and are arranged in the grid to have the square peripheral edge disposed at an angle relative to the horizontal axis of the grid. This can arrange the shutter assemblies into a diamond layout within the grid and place the shutter assemblies of adjacent columns into spatially offset rows of the grid. In some implementations, this increases the pixels per inch of the display, in other implementations, increases the aperture ratio.

Abstract translation: 具有多个具有活动快门的快门组件的显示器。 通常，快门组件布置成行和列的网格，并且网格具有与显示器的水平轴对准的水平轴线。 快门组件在网格内对准以使各个快门的运动轴线相对于网格的水平轴线成一定角度延伸。 在某些实施方案中，闸门组件具有矩形周边边缘，并且布置在格栅中，以使得相对于网格的水平轴线成一定角度的方形周边边缘。 这可以将快门组件布置在网格内的菱形布局中，并将相邻列的快门组件放置在网格的空间偏移行中。 在一些实现中，这增加了显示器的每英寸的像素，在其他实现中，增加了开口率。

公开(公告)号：US20130250619A1

公开(公告)日：2013-09-26

申请号：US13891492

申请日：2013-05-10

Applicant: PIXTRONIX, INC.

Inventor： Je Hong Kim ,  Jignesh Gandhi

IPC: F21V7/04

CPC classification number: F21V7/04 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0053 ,  G02B6/0061

Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.