Shutter control system and image apparatus including the same

Abstract

An image apparatus with reduced three-dimensional (3D) crosstalk includes a shutter control system including an infrared (IR) signal transmitter configured to receive from a display device for displaying two or more light-off sections and two or more light-on sections arranged alternately in one image frame, information corresponding to the light-off sections and the light-on sections, and to output an IR signal corresponding to the information, the IR signal corresponding to a start of a first light-off section of the light-off sections in the image frame, and a shutter controller configured to receive the IR signal, and to control opening or closing of a left shutter and a right shutter in accordance with the IR signal.

What is claimed is: 
     
         1 . A shutter control system comprising:
 an infrared (IR) signal transmitter configured to receive from a display device for displaying two or more light-off sections and two or more light-on sections arranged alternately in one image frame, information corresponding to the light-off sections and the light-on sections, and to output an IR signal corresponding to the information, the IR signal corresponding to a start of a first light-off section of the light-off sections in the image frame; and   a shutter controller configured to receive the IR signal, and to control opening or closing of a left shutter and a right shutter in accordance with the IR signal.   
     
     
         2 . The shutter control system of  claim 1 , wherein the one image frame comprises the first light-off section, a first light-on section, a second light-off section, and a second light-on section arranged sequentially in this order, and wherein a rising edge of the IR signal corresponds to the start of the first light-off section. 
     
     
         3 . The shutter control system of  claim 2 , wherein the shutter controller is configured to control the left shutter to be opened while controlling the right shutter to be closed when the IR signal is in a high state, and is configured to control the right shutter to be opened while controlling the left shutter to be closed when the IR signal is in a low state. 
     
     
         4 . The shutter control system of  claim 3 , wherein a section in which the left shutter is opened while the right shutter is closed overlaps the first light-off section, and a section in which the right shutter is opened while the left shutter is closed overlaps the second light-off section. 
     
     
         5 . An image apparatus comprising:
 a voltage generator configured to generate a first voltage and a second voltage, the second voltage having two or more high states and two or more low states in one image frame;   a display unit comprising a plurality of pixels configured to receive the first and second voltages, a data signal, and a gate signal, and configured to be lit or unlit corresponding to the first and second voltages, the data signal, and the gate signal;   a controller configured to receive information about a delay time from a user and to output a feedback signal corresponding to the information;   an IR signal transmitter configured to receive the feedback signal and to output an IR signal, the IR signal corresponding to at least one of a rising edge or a falling edge of the second voltage; and   shutter glasses comprising a left shutter, a right shutter, and a shutter controller configured to receive the IR signal, and to control opening or closing of the left shutter and the right shutter corresponding to the IR signal.   
     
     
         6 . The image apparatus of  claim 5 , wherein each of the pixels is configured to be unlit when receiving the second voltage in the high state, and is configured to be lit when receiving the second voltage in the low state. 
     
     
         7 . The image apparatus of  claim 6 , wherein the first voltage comprises ELVDD, and the second voltage comprises ELVSS. 
     
     
         8 . The image apparatus of  claim 5 , wherein the controller is configured to receive user inputted information corresponding to the delay time in units of 0.01 to 0.05 ms. 
     
     
         9 . The image apparatus of  claim 8 , wherein, the controller is configured to output the feedback signal upon receiving the user inputted information, the feedback signal being shifted from a starting point of the image frame by the delay time.