Patent ID: 9721534
Date: 2017-08-01
CPC Classifications: G09G

Claim:
1. A display apparatus, comprising: a backlight module, a light-emitting device of the backlight module comprising a first light-emitting unit and a second light-emitting unit, wherein a photoelectric conversion efficiency of the first light-emitting unit is higher than a photoelectric conversion efficiency of the second light-emitting unit, and a covering color gamut of the second light-emitting unit is larger than a covering color gamut of the first light-emitting unit; an input unit, generating an input signal; and a processing unit, coupled to the input unit, configured to receive the input signal generated by the input unit, and coupled to the backlight module, and dynamically adjusting respective light intensity ratios of the first light-emitting unit and the second light-emitting unit according to the received input signal, wherein the input unit comprises a brightness determination module, and the brightness determination module determines a brightness of an ambient environment of the display apparatus and provides brightness information of the ambient environment to serve as the input signal, wherein the processing unit receives the brightness information, and when the brightness information is lower than a brightness predetermined value, the processing unit adjusts the light intensity ratio of the second light-emitting unit to serve as a brightness of the backlight module, and disables the first light-emitting unit; and when the brightness information is higher than the brightness predetermined value, the processing unit adjusts the light intensity ratio of the second light-emitting unit to the maximum, and dynamically adjusts the light intensity ratio of the first light-emitting unit to serve as the brightness of the backlight module.