Due to its low contrast ratio (CR), liquid crystal display (LCD) is greatly challenged by OLED. Dual-layer LCD can effectively reduce the light leakage and improve the CR. However, its two LC panels can display two layers of images, and displayed ghosts may appear in the case of oblique view, which deteriorates the display quality. To this end, we proposed a viewing-angle-compensation-based image segmentation algorithm. Then, the positions of light at different viewing angles that passed through the two LC panels were recorded and the mapping matrix was therefore established. The transmittance of the dual-layer LCDs was optimized to obtain the minimum error between the initial image and the reconstructed image at all the set viewing angles. The simulation results show that at five viewing angles, the proposed algorithm presents larger peak signal to noise ratio (PSNR) than the other existing algorithms, which proves that this algorithm can achieve a better tradeoff between image quality and viewing angles.