Backlight module and three-dimensional display device
A stereoscopic display and backlight module technology, which is applied to instruments, optics, nonlinear optics, etc., can solve the problems of inaccurate projection of odd-numbered pixel images and even-numbered pixel images, and halving of resolution and brightness.
Active Publication Date: 2012-11-21
AU OPTRONICS (SUZHOU) CORP LTD +1
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Problems solved by technology
[0006] However, the disadvantage of this stereoscopic display is that the alignment between the lenticular lens or the parallax barrier and the LCD panel must be very precise, otherwise the odd pixel images and the even pixel images will not be accurately projected to the user's eyes
In addition, since the stereoscopic display divides the pixels of the liquid crystal panel into image pairs, the resolution and brightness of the stereoscopic display are halved compared to flat displays.
Method used
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[0058] Several implementations of the present invention will be disclosed below with the accompanying drawings. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplification of the drawings, some conventional structures and components are simply shown in the drawings.
[0059] figure 1A schematic diagram of a backlight module 100 according to an embodiment of the present invention is shown. As shown in the figure, a backlight module 100 includes a light guide plate 110 , a first light source 120 , a second light source 130 and a controller 140 . The light guide plate 110 has at least one groove 112 on its light incident side 115 , and the groove 112 includes a first side 111 and a second si...
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The invention discloses a backlight back plate and a three-dimensional display device. A backlight module which can provide directional backlight against a first eye target point and a second eye target point comprises a light guide plate, a first light source, a second light source and a controller. The light guide plate is provided with at least one groove on the light incident side, and the groove comprises a first side surface and a second side surface. The first side surface is opposite to the first eye target point. The second side surface is connected with the first side surface, and the second side surface is opposite to the second eye target point. A light-emitting surface of the first light source is arranged on the first side surface, so that the light-emitting surface of the first light source is opposite to the first eye target point. The light-emitting surface of the second light source is arranged on the second side surface, so that the light-emitting surface of the second light source is opposite to the second eye target point. The controller is used for lighting up the first light source and the second light source alternately.
Description
technical field [0001] The present invention relates to an optical assembly, and more particularly to a stereoscopic display. Background technique [0002] The optical principles of stereoscopic displays have been developed for more than 60 years. Basically, a stereoscopic display utilizes the parallax between two eyes of human beings to provide different images to the two eyes to generate a three-dimensional effect. Conventional stereoscopic displays can be roughly classified into glasses-wearing types and naked-eye types. Wearing glasses can be subdivided into Polarization Glasses, Anaglyph Glasses, Shutter Glasses and Head Mounted Displays (HMD). [0003] However, no matter what kind of glasses-wearing stereoscopic display, users must wear special glasses or helmets when watching, and these glasses or helmets often hinder human's natural vision. In addition, for a user who usually wears myopia glasses, the user either has to wear two pairs of glasses at the same time, ...
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IPC IPC(8): G02F1/13357
Inventor 吴永荣
Owner AU OPTRONICS (SUZHOU) CORP LTD