Patent ID: 9016864
Filing Date: 2015-04-28
Classification: G02B,G03B,G09G,H04N

Abstract:
1. A projection-type display system comprising: a projection-type display apparatus configured to alternately switch between images for the left eye and images for the right eye and project the images onto an object, the projection-type display apparatus being disposed within a first housing comprising a first cable terminal; and an opening and closing control device configured to receive a control signal based on the display states of the images projected onto the object by the projection-type display apparatus and control switching apertures of stereoscopic image viewing glasses corresponding to left and right eyes, the opening and closing control device being disposed within a second housing separate from the first housing and comprising a second cable terminal, wherein: the stereoscopic image viewing glasses are adapted to be connected wirelessly to the opening and closing control device; and the first and the second terminals are adapted to allow an operational, hardwired connection to be formed therebetween via at least one cable; wherein the projection-type display apparatus is configured to transmit the control signal to the opening and closing control device through the at least one cable; wherein: the projection-type display apparatus includes a built-in opening and closing control device that is built into the projection-type display apparatus; and further comprising, a control unit configured to judge whether the opening and closing control device is connected to the projection-type display apparatus through the at least one cable, wherein: the control unit is configured to control the projection-type display apparatus so that, if the opening and closing device is connected to the projection-type display apparatus through the at least one cable, the projection-type display apparatus transmits the control signal to the opening and closing control device and refrains from transmitting the control signal to the built-in opening and closing control device; and, the control unit is further configured to control the projection-type display apparatus so that if the opening and closing device is not connected to the projection-type display apparatus through the at least one cable, the projection-type display apparatus transmits the control signal to the built-in opening and closing control device that is built into the projection-type display apparatus.