Patent ID: 6654088
Filing Date: 2003-11-25
Classification: G02F

Abstract:
A liquid crystal display device formed by the steps of:preparing a first substrate having a first main surface having a color filter formed thereon; overlaying a second substrate having a second main surface on the first substrate so that the first main surface is opposed to the second main surface with a gap therebetween and bonding the peripheral portion of the first substrate to the peripheral portion of the second substrate with a sealing material; and filling a space surrounded by the first main surface, the second main surface, and the sealing material with a liquid crystal material, and comprising: a liquid crystal display element having two substrates opposed to each other and a liquid crystal layer sandwiched between the two substrates; a plurality of light sources disposed opposite to the display surface of the liquid crystal display element and radiating light to the liquid crystal display element; an optical member interposed between the liquid crystal display element and the plurality of light sources; and a reflection member disposed opposite to the liquid crystal display element of the plurality of light sources, characterized in that the reflection member has protrusions protruding to the plurality of light sources and arranged along the direction of extension of the plurality of light sources in the regions between the plurality of light sources, and that the protrusion is triangular in cross section when it is cut by a plane perpendicular to the direction of extension of the plurality of light sources, and that assuming that the distance between the center portions of the plurality of light sources is L, the distance between the reflection member and the center portions of the plurality of light sources being d1, the height of the protrusion being h, and an angle formed by two sides of the protrusion protruding to the plurality of light sources being &thgr;, these factors satisfies the following relations h&gE;d1, tanâˆ’1(2(h+d1))/L&gE;90Â°âˆ’&thgr;.