| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal display device improving a manufacturing yield by reducing mistakes in assembling operations and further reducing a manufacturing cost by reducing the number of components. SOLUTION: Grooves 12, 13, 14 are arranged on a peripheral surface of the first frame 51 holding an optical sheet 200. Also protrusions 101, 102, 103 on respective peripheral parts of an upper side diffusion plate 1, a prism lens sheet 2 and a lower side diffusion plate 3 are provided in mutually different positions. Furthermore, the structure comprises the protrusion 101 of the upper side diffusion plate 1 joining to the groove 12, the protrusion 102 of the prism lens sheet 2 joining to the groove 13 and the protrusion 103 of the lower side diffusion plate 3 joining to the groove 14. |
