| 摘要 |
An LCD device is provided to guide optical sheets during an external impact or vibration and prepare for the expansion of the optical sheets when the LCD device is operated at a high temperature and a normal temperature, thereby preventing the rumples of the optical sheets from being generated. An LCD(Liquid Crystal Display) device comprises an LCD panel, plural optical sheets(143), a mold frame(153), and an upper case and a lower case(152). The plural optical sheets are positioned in the lower surface of the LCD panel. At least one fastening portion(143a,143b) is formed by a part of a side end of the optical sheet protruded to the outside in the optical sheets. Fastening grooves(170a,170b) having first and second margins are formed in each fastening portion in a first direction and a second direction. The mold frame contains the plural optical sheets and the LCD panel. Fastening protrusions(153a,153b) are protruded to an upper direction in an upper stepped portion corresponding to the each fastening groove to fasten the plural optical sheets through the each fastening groove. The upper case and the lower case fix the LCD panel and the mold frame. |
