Image display apparatus
An image display apparatus comprising a light guide plate, a light-emitting diode (LED), a first transparent substrate and a second transparent substrate is provided. Light generated from the LED is guided into the light guide plate through the edge thereof, and outwardly projected through the two opposite surfaces of the light guide plate. Thus, a pattern being disposed in front of the first transparent substrate or the second transparent substrate would be lighted up.
1. An image display apparatus, comprising:
a light guide plate having a first light emitting surface, a second light emitting surface opposite to the first light emitting surface, and an edge;
a light-emitting diode (LED) disposed adjacent to the edge of the light guide plate for projecting light towards the light guide plate;
a first transparent substrate disposed adjacent to the first light emitting surface of the light guide plate;
a second transparent substrate disposed adjacent to the second light emitting surface of the light guide plate;
a transparent film, disposed outside the first transparent substrate or the second transparent substrate, wherein a pattern is formed on the transparent film; and
a frame, defining a receiving space where the light guide plate, the LED, the first transparent substrate and the second transparent substrate are disposed therein, the frame comprising a replacement structure, in which the transparent film is adapted to be disposed on or removed from the image display apparatus through the replacement structure;
wherein the light is adapted to be guided into the light guide plate from the edge thereof, and outwardly projected through the first light emitting surface and the second light emitting surface; thereby the pattern presented in front of one of the first transparent substrate and the second transparent substrate is capable of being lighted up.
2. The image display apparatus as claimed in claim 1 , further comprising a circuit board electrically connected to the LED.
3. The image display apparatus as claimed in claim 2 , wherein the LED is directly disposed on the circuit board.
4. The image display apparatus as claimed in claim 2 , further comprising an optical film disposed between the first transparent substrate and the light guide plate, or the second transparent substrate and the light guide plate.
5. The image display apparatus as claimed in claim 4 , wherein the optical film is selected from the group consisting of: a diffusion film, a polarization film, and a brightness enhancement film.
6. The image display apparatus as claimed in claim 2 , wherein the circuit board is disposed in the receiving space formed by the frame.
7. The image display apparatus as claimed in claim 6 , wherein the frame is made of a thermal conductive material.
8. The image display apparatus as claimed in claim 7 , wherein the thermal conductive material is a metallic material.