In order to enhance the imaging quality of tomographic 3D display technique, the original light field was firstly reconstructed with acrylic panels and films before exerting adjustments. The freedom for adjusting display quality was expanded by adding layer weight and light field weight as factors, enabling the display quality to be changed while external factors remain stable. The mutual independence of line images under a horizontal parallax circumstance was confirmed, and thus a line division method was applied in the calculation to eliminate the time complexity of the fitting proceed. As the memory is saved and efficiency is enhanced, it is possible to achieve more accurate calculation in limited time. Given other factors are determined, the maximum resolution of images to be calculated under the original method is 900×1 200 pixel, but the line division method is able to calculate 1 800×2 400 pixel images without memory overflow. The evaluation standard of the effect of image reconstruction is established based on the image variance, under which it is found that increasing resolution and layer number, decreasing field of view or balancing layer weight can enhance holistic reconstruction quality, and the quality of a certain angle of view can be promoted by adding to its light field weight correspondingly. Parallax is observed in a fabricated 3-layer model with 1mm layer distance, denoting the distinguished advantage of tomographic 3D display in the reconstruction of light field.