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Display device and screen power dissipation control method thereof

A screen and power consumption technology, which is applied in the field of display equipment and its screen power consumption control, can solve the problem of high power consumption, achieve the effects of extending standby time, avoiding unacceptable experience, and reducing battery capacity

Active Publication Date: 2019-03-19
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat generated by the independent power supply is serious, and the overheating of the product is unacceptable to the user. In summer, the experience brought by the heating wearable product to the customer is unimaginable
[0008] In summary, there is a technical problem of high power consumption in low power consumption mode in the prior art

Method used

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  • Display device and screen power dissipation control method thereof
  • Display device and screen power dissipation control method thereof
  • Display device and screen power dissipation control method thereof

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Embodiment Construction

[0051] In the prior art, AMOLED-based wearable display devices adopt a fixed screen refresh rate and an independent power supply mode, see figure 1 . Such as figure 1 As shown, the display panel is powered by an independent power supply. The display panel is an AMOLED panel. The independent power supply provides two supply voltages, one is positive voltage ELVDD, and the other is negative voltage ELVSS. The display panel is in high power consumption mode and low power consumption mode. The power supply voltage is provided by an independent power supply.

[0052] In addition, the screen refresh frequency f1 of the display panel in the high power consumption mode and the screen refresh frequency f2 of the display panel in the low power consumption mode are both fixed values. The screen refresh rate should be at least 15HZ. The screen refresh frequency in different modes is burned in the drive circuit through OTP, and burned in the drive circuit through a dynamic password (One...

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Abstract

The invention discloses a display device and a screen power dissipation control method thereof. The method comprises the steps that when a current frame is displayed on a display panel, a current monitoring module supplies display current to the display panel, the current monitoring module is arranged at a positive voltage input interface or a negative voltage input interface of the display paneland feeds back display current to a power selection module; the power selection module obtains the display current fed back by the current monitoring module, and when it is determined that a drive circuit can supply the display current, a power supply source of the display panel is switched from an independent power source into a drive circuit. When the display panel is in the low power dissipation mode, when it is determined that the drive circuit meets the power supply requirement of the display panel, the power supply selection module enables the drive circuit to supply power to the displaypanel, and compared with the prior art that an independent power source is adopted for supplying power to the display panel, the total power dissipation of a screen of the display panel can be lowered under the same outside condition.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a display device and a method for controlling power consumption of the screen. Background technique [0002] Active-matrix organic light emitting diode (AMOLED for short) display panel is a material mainly composed of organic semiconductors and light-emitting materials driven by an electric field through carrier injection and recombination. panel. Compared with traditional LCD, AMOLED display panel has the advantages of fast response, wide color gamut, high contrast, self-illumination and lower power consumption. [0003] With the rapid development of AMOLED technology, there are more and more types of wearable products, larger display ratio, lighter and thinner design will be the direction of future development, limited by the slow development of battery technology, reducing the display performance Power consumption will be a big challenge, and goo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2330/021
Inventor 杨永宾秦永亮
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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