A fixture for preventing deformation of a glass panel of a display module, for receiving and fixing a light guide plate and a glass panel. It comprises an array cell and a color filter cell. The array cell is provided with a metal routing layer. The color filter cell is provided with a color resist layer. The fixture consists and a lower fixing end, with upper ends, the array cell and the color filter cell received in the upper fixing end, while lower ends thereof received in the lower fixing end, so the color resist layer in the color filter cell and the metal routing layer in the array cell are aligned in parallel. By a gap between the glass panel and the inner side face and bottom surface, the glass panel fine tunes properly for quick recovery by virtue of its gravity when deformation occurs.