BACKLIGHT MODULE
First Claim
1. A backlight module, comprising:
- a control unit;
a backlight driving unit, electrically connected to the control unit, wherein the backlight driving unit is controlled by the control unit to generate a driving command;
a first light source set, electrically connected to the backlight driving unit, wherein the first light source set is turned on/off by the driving command; and
a second light source set, electrically connected to the backlight driving unit, wherein the second light source set is turned on/off by the driving command;
wherein the control unit controls the backlight driving unit to generate the driving command according to a predetermined value, in order to drive the first light source set and the second light source by turns.
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Accused Products
Abstract
A backlight module including a control unit, a backlight driving unit, a first light source set, and a second light source set is provided. The backlight driving unit is controlled by the control unit to generate a driving command to light on/off the light source sets. Therefore, the first and second light source set can be lighted on or off by turns according to a predetermined value, e.g., a time interval, times of power on operations. Otherwise, the second light source set may be used to compensate a brightness loss of the first light sources set when the displaying brightness is not enough, so as to maintain the displaying brightness within a predetermined range. Therefore, a longer lifetime of the backlight module can be obtained.
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Citations
11 Claims
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1. A backlight module, comprising:
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a control unit; a backlight driving unit, electrically connected to the control unit, wherein the backlight driving unit is controlled by the control unit to generate a driving command; a first light source set, electrically connected to the backlight driving unit, wherein the first light source set is turned on/off by the driving command; and a second light source set, electrically connected to the backlight driving unit, wherein the second light source set is turned on/off by the driving command; wherein the control unit controls the backlight driving unit to generate the driving command according to a predetermined value, in order to drive the first light source set and the second light source by turns. - View Dependent Claims (2, 3, 4, 5)
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6. A backlight module, comprising:
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a control unit; a backlight driving unit, electrically connected to the control unit, wherein the backlight driving unit is controlled by the control unit to generate a driving command; a first light source set, electrically connected to the backlight driving unit; and a second light source set, electrically connected to the backlight driving unit; wherein the backlight driving unit drives the first light source set, and the control unit determines whether to light on the second light source set or not according to a predetermined value simultaneouly, in order to compensate a brightness loss of the first light source set, thus maintaining a brightness of the backlight module within a predetermined range. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification