Touch panel and touch display device provided with touch panel

Touch panel and touch display device provided with touch panel

  • CN 101,667,084 A
  • Filed: 08/24/2009
  • Published: 03/10/2010
  • Est. Priority Date: 08/24/2009
  • Status: Active Application
First Claim
Patent Images

1. a contact panel is characterized in that, comprising:

  • One light guide plate, it has a upper surface, a lower surface, a plurality of side surface and a plurality of incidence surface;

    A plurality of light sources, be arranged at respectively on those incidence surfaces of this light guide plate, those light sources have a light bag total reflection angle (α

    ) and a light bag vertical divergence angle (β

    ) with respect to those incidence surfaces of this light guide plate, θ



    α



    60 °

    wherein, θ

    is the critical angle of the angle of total reflection of this light guide plate, and β



    50 °

    , α

    is a light bag total reflection angle, β

    is a light bag vertical divergence angle;

    A plurality of detecting devices, the position of its corresponding those light sources is provided with, to receive the light bag signal from those light sources were sent.

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