Power-saving display device applying power-saving back light cell and power-saving type portable electronic apparatus

A technology for electronic devices and backlight units, which is applied to electrical components, selection devices, telephone communications, etc., and can solve the problems of fast battery power consumption and power waste
CN1270563CInactive Publication Date: 2006-08-16INVENTEC APPLIANCES CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
INVENTEC APPLIANCES CORP
Publication Date
2006-08-16
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a brownout backlight unit. It is suited for a portable electric device with a primary display panel and a secondary display panel which are connecting back to back. The first area set on the primary display panel includes: the first light emitting device and the second light emitting device. When the portable electric device is in the state of receiving or sending, the portable electric device simultaneously devices the first light emitting device and the second light emitting device to supply light sources for the first area and the second area of the primary display panel. When the portable electric device is in the state of shutdown, the portable electric device only drives the first light emitting to supply light source for the secondary display panel. Moreover, the display device and the portable electric device using the brownout backlight unit could be revealed together.
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Description

technical field

[0001] The present invention relates to a backlight unit, in particular to a power-saving backlight unit applied to two display panels; wherein, a display device and a portable electronic device using the power-saving backlight unit are also disclosed. Background technique

[0002] figure 1 A schematic diagram of a phone with dual screens is shown. As shown in the figure, the mobile phone includes: a top cover 10 and a bottom cover 12, with a main display panel 14 on the front of the top cover 10, and a secondary display panel 16 on the back of the top cover 10; The cover 10 will be in close contact with the lower cover 12, and the secondary display panel 16 will be lit to display the time or caller ID; Light on, but the user will not use the secondary display panel 16 when using the mobile phone to talk or set other functions, but when the general mobile phone is in use, the main display panel 14 and the secondary display panel 16 will all be lit. Cause t...

Claims

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