Patent ID: 9552753
Date: 2017-01-24
CPC Classifications: G09G

Claim:
1. A display device, comprising: a display panel, defining a plurality of pixels in a pixel matrix; a controller configured to control the pixels of the display panel, the controller comprising a processor and a non-volatile memory storing computer executable codes, wherein the codes, when executed at the processor, is configured to a transparent photon collection panel attached to the display panel, wherein the transparent photon collection panel is configured to receive the light displayed by the area and to generate an analog signal in response to the light; and an analog to digital (A/D) converter electrically connected to the transparent photon collection panel and the controller, wherein the A/D converter is configured to receive the analog signal from the transparent photon collection panel, to convert the analog signal to the photon current value, and to send the photon current value to the controller.