Patent ID: 8427746

Claim:
A stereoscopic image display system comprising an eye tracking module, a control module, a backlight module and a display module, wherein said eye tracking module is used for locating current 3D spatial positions of viewer's eyes and generating the information of 3D spatial positions of both left and right eyes; said control module is used for controlling said backlight module and said display module synchronously according to the information of 3D spatial positions of said both left and right eyes provided by said eye tracking module; said backlight module comprises a slit source, a light guiding unit, a light driving unit and a reflection module, and wherein said slit source and said light guiding unit are configured between the display module and the reflection module, and located on the side of the display module; said slit source is used for emitting linear light to said light guiding unit; said light guiding unit is used for altering the direction of the emergent light from said slit source and guiding the emergent light altered to said reflection module; and said light driving unit is used for driving said slit source and said light guiding unit respectively, said light driving unit sends out pulse-width modulation(PWM) signal so as to light on the said slit source at some points and light it off at another time points; said backlight module is used for forming an interleaved light source under control of said control module, and emitting said interleaved light source to said display module as a backlight source, said interleaved light source including luminous regions where light emits to said display module and non-luminous regions where hardly any light emits to said display module, said luminous regions and non-luminous regions being arrayed in an interleaved form; and said display module is used for displaying an interleaved image under the control of said control module, said interleaved image including black regions where light can't pass through and image regions where light can pass through, said black regions and image regions being arrayed in an interleaved form.