Image display device and manufacturing method thereof enabling easy installation of optical sensor

1. An image display device having an image display unit including a display for displaying images and a backlight arranged behind the display to illuminate the display, the image display device comprising:

an opening formed behind the image display unit;

an optical sensor which detects light passing through the opening; and

a sensor holder which holds the optical sensor,

wherein the opening includes a protruding diaphragm and a passage hole,

wherein a screw groove is formed at the passage hole.

2. The image display device according to claim 1 , wherein the passage hole is provided at a top of the diaphragm or near the top of the diaphragm.

3. The image display device according to claim 1 , wherein the opening is disposed at approximately a center of the image display unit.

4. The image display device according to claim 1 , wherein the sensor holder includes a sensor hole,

wherein the sensor hole is superposed on the passage hole in a front view.

5. A manufacturing method of an image display device,

the image display device having

an image display unit that includes a display for displaying images and a backlight arranged behind the display to illuminate the display,

an opening formed behind the image display unit,

an optical sensor which detects light passing through the opening, and

a sensor holder which holds the optical sensor,

the manufacturing method comprising:

mounting a positioning jig on the opening;

fixing the sensor holder positioned by the positioning jig to a backside of the image display unit; and

removing the positioning jig after the mounting and the fixing.