Abstract: A method for programming extended display identification data (EDID) adapted to a display device is provided. The display device has at least one EDID chip, a microcontroller unit chip, and a flash memory chip. in the method, a first EDID corresponding to the EDID chip is written into a firmware stored in the flash memory chip. The display device is powered on. The first EDID in the firmware is automatically written into the corresponding EDID chip as a second EDID by the microcontroller unit chip.

Abstract: The light guide plate has a flat body. At least one of the light emission plane and the light reflection plane of the light guide plate has a number of linear reflection structures arranged in parallel along the surface. The reflection structures have a V-shaped cross section pointing outward from or inward into the surface. Each reflection structure further has at least one of its end surfaces slanting towards the other end. It is the reflection structures' slant end surfaces that provide additional collimation and enhancement to the light beams traveling through the light guide plate.