| 摘要 |
PROBLEM TO BE SOLVED: To prevent the temperature of a lamp from rising by forming a slit for heat radiation in a lamp cover. SOLUTION: A liquid crystal panel 1 and a light guide plate unit 4 are supported by frame bodies 7a and 7b and further the unit 4 is fixed to the frame body 7b by a reverse cover 6 with, for example, a screw 8. A reflector 5 is fitted to a lamp unit 2 itself or light guide plate unit 4 while covering the lamp unit 2. The lamp unit 2 is protected and fixed by the lamp cover 10 provided with the slit 9 while supported on the frame body 7b. The slit 9 is a through hole which can radiate heat, and the lamp unit 2 is only protected to maintain sufficient strength of the cover 10 itself and actualize a small light leak. The heat generated by the lamp is radiated from the slit 9 for heat radiation formed in the lamp cover 10 to prevent the temperature of the lamp from rising, thereby obtaining an image with high luminance at all times. |
