Quantum dot colored film structure of wedge-shaped substrate

The invention provides a quantum dot colored film structure of a wedge-shaped substrate. Blue light of a backlight module can be used efficiently. A red sub-pixel part and a green sub-pixel part of the colored film structure are provided with transparent substrates, and the transparent substrates are in contact with quantum dots through transparent wedge-shaped microstructures; the blue light of the backlight module is totally reflected in the wedge-shaped microstructures when passing through a lower polarizer, a liquid crystal and an upper polarizer and then entering the wedge-shaped microstructures and used for exciting the quantum dots at contact parts between the wedge-shaped microstructures and the quantum dots. The quantum dot colored film structure can effectively improve the purityof emitted light, increase the light utilization rate and reduce the use number of the quantum dots. 本发明提出种楔形基板的量子点彩膜结构，可以高效地利用背光模组的蓝光，所述彩模结构的红色子像素部位、绿色子像素部位处设有透明基板，透明基板以透明的楔形微结构与量子点接触；背光模组的蓝光经过下偏振片、液晶和上偏振片然后进入楔形微结构时，在楔形微结构内