1. Use materials with high light transmittance: Using materials with high light transmittance can improve the brightness and color vividness of flexible displays and reduce energy loss.

2. Optimize the grating structure: The grating structure is an important part of adjusting the light transmission in the flexible display. By optimizing the parameters of grating structure, such as line width and line spacing, the light can be more focused and the light efficiency can be improved.

3. Using local optical enhancement technology: Local optical enhancement technology is a new optical technology, which can enhance the optical effect in a local area. Applying local optical enhancement technology to flexible display can improve its optical efficiency.

4. Optimize the circuit design: The circuit design also has a great influence on the optical efficiency of the flexible display. Using optimized circuit design can reduce light dissipation and improve light efficiency.