US Patent 11520183 Touch front light module and touch display device

A touch front light module includes a touch light-guiding unit, a light-emitting unit, and a protective layer. The touch light-guiding unit includes a glass board, a touch layer disposed on a top surface of the glass board, and a microstructure layer disposed on a bottom surface of the glass board and which has a plurality of microstructures for light scattering. The light-emitting unit is disposed on a lateral side of the touch light-guiding unit and is configured to emit light to be incident on the lateral surface of the glass board. The protective layer is disposed on the touch layer. A touch display device including a display module and the touch front light module disposed on the display module is also disclosed.