Power supply device and display device
AssigneesHkc Corporation Limited, Chongqing Hkc Optoelectronics Technology Co., Ltd.
InventorWei Fu
Life of this patent
Estimating the term…
Abstract
A power supply device (100) and a display device (200). The power supply device (100) comprises a drive unit (10), a power source unit (20) and a protection unit (30); the drive unit is configured to drive the display device (200); the power source unit (20) is electrically connected to the drive unit (10); the power source unit (20) is configured to provide electric energy; the protection unit (30) is electrically connected between the drive unit (10) and the power source unit (20); and the protection unit (30) is configured to prevent current recharge.
Claims18
A power supply device (100), comprising:
- a drive unit (10) configured to drive a display device;
- a power supply unit (20) electrically connected to the drive unit (10), configured to provide power;
- and
- a protection unit (30) electrically connected between the drive unit (10) and the power supply unit (20), configured to prevent current from recharging, wherein
- the protection unit (30) comprises an electronic switch unit (31), electrically connected to the power supply unit (20) and the drive unit (10), respectively;
- and a voltage dividing unit (32), a first end of the voltage dividing unit (32) is electrically connected to the electronic switch unit (31), a second end of the voltage dividing unit (32) is electrically connected between the power supply unit (20) and the drive unit (10), and the other end of the voltage dividing unit (32) is grounded.
A display device (200), comprising:
- a display module (210);
- a power supply device (100), comprising:
- a drive unit (10) electrically connected to the display module (210);
- a power supply unit (20) electrically connected to the drive unit (10);
- and
- an electronic switch unit (31) having an input terminal (311), a control terminal (312) and an output terminal (313), the input terminal (311) being electrically connected to the power supply unit (20), and the output terminal (313) being electrically connected to the drive unit (10);
- and
- a voltage dividing unit (32) electrically connected to the control terminal (312), an end of the voltage dividing unit (32) being electrically connected between the power supply unit (20) and the drive unit (10), and the other end of the voltage dividing unit (32) being grounded.
A power supply device (100), comprising:
- a drive unit (10) configured to drive a display module;
- a power supply unit (20) electrically connected to the drive unit (10) via a first wire and a second wire, wherein an operating voltage of the second wire is a half of an operating voltage of the first wire;
- a protection unit (30) electrically connected between the drive unit (10) and the power supply unit (20), and comprising:
- an electronic switch unit (31) having an input terminal (311), a control terminal (312), and an output terminal (313), wherein the input terminal (311) is electrically connected the power supply unit (20) via the second wire, the output terminal (312) is electrically connected to the drive unit (10) via the second wire;
- a first resistor (321), an end of the first resistor (321) being electrically connected to the first node (11) on the first wire;
- and
- a second resistor (322), an end of the second resistor (322) being electrically connected to the other end of the first resistor (321), a second node (12) being disposed between the first resistor (321) and the second resistor (322) to be electrically connected to the control terminal (312), and the other end of the second resistor (322) being grounded.
Dependencies are inferred from the claim text.