Patent ID: 7244966

Claim:
A display device comprising: a liquid crystal panel; at least one optical sheet which comprises a light diffusion sheet and a prism sheet; and a case formed by resin molding, wherein the at least optical sheet is disposed between the liquid crystal panel and the case, and the liquid crystal panel comprises a first edge extending along a first direction and a second edge extending along a second direction which is transverse to the first direction, wherein the at least one optical sheet comprises a first side extended along the first direction comprising a first projection portion protruding from the first side and a second side comprising a second projection portion protruding from the second side, the first projection portion has a first opening and the second projection portion comprises a second opening; wherein the case comprises a first columnar member passing through the first opening of the at least one optical sheet and a second columnar member passing through the second opening of the at least one optical sheet, the first columnar member and the second columnar member are formed integrally with the case, and the columnar member serves as a guide for positioning the liquid crystal panel; wherein a length of the first edge of the liquid crystal panel is shorter than a length of the second edge of the crystal panel, and a length of the second opening extending in a first direction is shorter than a length of the second opening extending in a second direction; and wherein the display device further comprises at least one linear lamp extending along the second direction, and the second side extends in the second direction.