公开(公告)号：US20070058108A1

公开(公告)日：2007-03-15

申请号：US11518313

申请日：2006-09-11

申请人： Shin-ichi Uehara ,  Goroh Saitoh

发明人： Shin-ichi Uehara ,  Goroh Saitoh

IPC分类号： G02F1/1333

CPC分类号： G02F1/133555 ,  G02B6/0016 ,  G02B6/002 ,  G02B6/0038 ,  G02B6/005 ,  G02B6/0053 ,  G02B6/0068 ,  G02B6/0076 ,  G02F2001/133626

摘要： In a display device, white LEDs and bluish white LEDs are arranged in alternating fashion on the light-incident surface side of a light-guide plate. On the light-exit side of the light-guide plate is disposed a transparent/scattering switching element switchable between a state of scattering incident light, and a state of transmitting light unchanged without scattering. During a narrow-angle display, only the white LEDs are lit, and the transparent/scattering switching element is placed in the transparent state, while during a wide-angle display, both the white LEDs and the bluish white LEDs are lit, and the transparent/scattering switching element is placed in the scattering state.

摘要翻译： 在显示装置中，白色LED和蓝白色LED以交替的方式排列在导光板的光入射表面侧上。 在导光板的光出射侧配置有透射/散射切换元件，其可以在散射入射光的状态和不发散光的状态下发光。 在窄角度显示期间，只有白色LED点亮，并且透明/散射开关元件处于透​​明状态，而在广角度显示期间，白色LED和蓝色白色LED都点亮，并且 透明/散射开关元件处于散射状态。