Patent ID: 7709760

Claim:
A light-emitting keyboard, comprising: a light guide having a light entrance surface, a bottom surface and a light exit surface; a light source provided on one side of the light entrance surface of the light guide; a first reflector disposed underneath the bottom surface of the light guide to reflect light originated from the light source to enter into said light guide; a second reflector disposed on top of said light exit surface of the light guide; a membrane circuit board disposed on top of said second reflector, said membrane circuit board being provided with an elastic member; a supporting plate disposed on top of the membrane circuit board, said supporting plate further including a first opening corresponding to the elastic member of the membrane circuit board; a scissor assembly engaged with said supporting plate and provided thereon; a keycap supported by and disposed on top of said scissor assembly; and wherein said first reflector provided underneath the bottom surface of the light guide prevents the light emitted by the light source from escaping from the bottom surface of the light guide by reflecting said light towards the light exit surface of the light guide; and said second reflector permits a portion of the light originated from the light source to penetrate therethrough and reflects another portion of the light originated from the light source back towards the light exit surface of the light guide; wherein a reinforcement board having at least one fastener is further provided on top of the second reflector.