Backlight driving board, backlight module, display apparatus and method for adjusting brightness and color temperature thereof

A backlight module, comprising:

• a backplane;
• the light source disposed on a side of the backplane;
• and
• a backlight driving board, the backlight driving board being disposed on a side of the backplane away from the light source, wherein:
• the backlight driving board includes:
• a main circuit board;
• a photosensitive device disposed on the main circuit board, the photosensitive device being configured to sense a brightness and a color temperature of a light source, and output brightness data and color temperature data;
• a backlight controller disposed on the main circuit board, the backlight controller being coupled to the photosensitive device, and configured to receive the brightness data and adjust a light-emitting brightness of the light source according to the brightness data;
• and
• a first port disposed on the main circuit board, the first port being coupled to the photosensitive device, and configured to be coupled to a system board, receive the color temperature data, and transmit the color temperature data to the system board, such that the system board adjusts a color temperature of a picture displayed by a display panel according to the color temperature data;
• and
• the backplane has an opening at a position corresponding to the photosensitive device of the backlight driving board, and a sensing end of the photosensitive device extends into the opening, so as to sense the brightness and the color temperature of the light source.