Power-saving display device applying power-saving back light cell and power-saving type portable electronic apparatus
A technology of electronic devices and backlight units, which is applied to electrical components, selection devices, telephone communications, etc., and can solve problems such as power waste and fast battery power consumption
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[0020] figure 2 A first embodiment of the power saving type backlight unit of the present invention is shown. As shown in the figure, the backlight unit 20 has a main display panel 14 and a secondary display panel 16, the secondary display panel 16 is back to back with the main display panel 14, and is arranged on the first region R1 of the main display panel 14, including : a first light-emitting device A, set corresponding to the first area R1 of the main display panel 14 and the secondary display panel 16, to provide light source to the first area of the main display panel 14 and the secondary display panel 16; the second light emitting device A The device B is disposed corresponding to the second region R2 where the main display panel 14 does not overlap with the secondary display panel 16 , for providing light to the second region R2 of the main display panel 14 .
[0021] The secondary display panel 16 can be placed in any area shown on the back of the main display p...
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