Liquid crystal display

A liquid crystal display comprising:

• a lower receiving container which comprises:
• a bottom plate having an embossing portion
• sidewalls extending in a first direction from the bottom plate and
• a first through-hole formed in the embossing portion,
• wherein the embossing portion protrudes from the bottom plate in a second direction substantially opposite to the first direction;
• a plurality of light sources disposed within the lower receiving container;
• an optical sensor printed circuit board attached to the embossing portion, wherein the optical sensor printed circuit board covers the first through-hole within the lower receiving container;
• and
• an optical sensor mounted on the optical sensor printed circuit board.

A liquid crystal display comprising:

• a lower receiving container which comprises:
• a bottom plate;
• and
• sidewalls disposed on the bottom plate and which surround edges of the bottom plate;
• a first through-hole formed through the lower receiving container;
• a plurality of light sources disposed within the lower receiving container;
• an optical sensor printed circuit board attached to a bottom surface of the bottom plate, wherein the optical sensor printed circuit board covers the first through-hole;
• an optical sensor mounted on the optical sensor printed circuit board and inserted into the first through-hole;
• and
• a light-shielding film disposed under the bottom plate and which covers the optical sensor printed circuit board.

A liquid crystal display comprising:

• a lower receiving container which comprises:
• a bottom plate;
• sidewalls extending from the bottom plate;
• a first through-hole formed in the bottom plate;
• and
• a guide pole disposed on the bottom plate and which substantially surrounds the first through-hole;
• a plurality of light sources disposed within the lower receiving container;
• an optical sensor printed circuit board attached to a bottom surface of the bottom plate, wherein the optical sensor printed circuit board covers the first through-hole;
• an optical sensor mounted on the optical sensor printed circuit board and inserted into the first through-hole;
• an alignment plate disposed on the bottom plate and which includes a second through-hole located at a position aligned with the first through-hole;
• and
• wherein an upper surface of the alignment plate extends further from the bottom plate than an upper surface of the guide pole.