Patent ID: 9601042
Date: 2017-03-21
CPC Classifications: G06F,G09G

Claim:
1. A light sensing touch panel, which comprises a driving circuit, wherein, the driving circuit at least comprises: a light sensor, which is used to measure the ambient light field intensity of the light sensing touch panel and output a light field signal; a touch signal amplifying controller, which is used to output an amplification signal adapting to a touch signal according to the intensity of the light field signal; and an amplifier, which is used to amplify the touch signal according to the amplification signal and drive the light sensing touch panel; wherein, the light sensor, the touch signal amplifying controller, and the amplifier are connected in sequence; wherein the touch signal amplifying controller comprises: a storage, which is used to store the amplification value; a determiner, which is used to consider the intensity of the light field signal according to the light field signal; and a selection controller, which is used to choose a magnification adapting to the touch signal, the storage and the determiner being respectively connected with the selection controller; wherein, the driving circuit of the light sensing touch panel is turned on when there is no touch and is turned off when there is touch; the determiner considers if the intensity of the light field signal is larger than the predetermined value of the stored light field signal, if it is YES, choose a first magnification from the stored amplification value to adapt to the touch signal; if it is No, choose a second magnification from the stored amplification value to adapt to the touch signal; wherein, the first magnification is larger than the second magnification.