Patent ID: 7466375

Claim:
A liquid crystal display device comprising: a light source including a blue-emitting phosphor configured to emit blue light, a green-emitting phosphor configured to emit green light, and a red-emitting phosphor configured to emit red light; and a liquid crystal display panel including color filters configured to control the transmittance of light from the light source and to transmit one of blue, green, and red light on a pixel basis, wherein the green-emitting phosphor is represented by a compositional formula of (La 1−x−y ,Tb x ,Ce y )PO 4 , wherein “x” and “y” are compositional ratios satisfying both the following conditions (1) and (2): 0.500<( x+y )<0.700 (1) 1.20<( y/x )<2.00 (2).