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A balanced method for driving oled panels with low power consumption

A balanced method and low power consumption technology, applied to static indicators, instruments, electrical components, etc., can solve problems such as consumption and large dynamic current, and achieve the effect of reducing dynamic current and low power consumption

Active Publication Date: 2022-04-19
晟合微电子(肇庆)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the display of the red image is driven, the D1 and D3 lines will drive the panel in blue (B0) and red (R255) for each H line, and the D2 and D4 lines will remain constant without changing to green (G0), But the D1 line and D3 line will consume a lot of dynamic current

Method used

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  • A balanced method for driving oled panels with low power consumption
  • A balanced method for driving oled panels with low power consumption
  • A balanced method for driving oled panels with low power consumption

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Embodiment Construction

[0018] The present invention will be further described now in conjunction with accompanying drawing. These drawings are simplified schematic diagrams only to illustrate the basic structure of the present invention in a schematic way, so they only show the components relevant to the present invention.

[0019] Embodiment of the present invention, a kind of equalization method of driving OLED panel with low power consumption, such as figure 1 As shown, the output terminal of the channel amplifier AMP of the OLED panel is connected to the pixel block of the OLED panel after the ELVDD_EQ switch is connected in series, the access point of the panel power supply voltage ELVDD is connected to the pixel block of the OLED panel after the ELVDD_EQ switch is connected in series, and the ELVDD_EQ switch It is the access switch of panel supply voltage ELVDD.

[0020] ELVDD_set_level is the voltage conversion value of the panel power supply voltage ELVDD; compare the input value of the ch...

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Abstract

The invention relates to an equalization method for driving an OLED panel with low power consumption, specifically, the equalization method is: optionally connected to a panel power supply voltage ELVDD for driving so that the channel amplifier AMP of the OLED panel is optionally not working. When the input data of the channel amplifier AMP changes greatly, it is driven by the panel power supply voltage ELVDD, and the channel amplifier AMP does not work to reduce the dynamic current of the panel. When the input data of the channel amplifier AMP changes very little, the panel power supply voltage ELVDD is not connected, and the channel amplifier AMP works to drive, reducing unnecessary access to the panel power supply voltage ELVDD, and further reducing power consumption. The invention can reduce the dynamic current of the panel data line which accounts for a large part of the current consumption when driving the OLED panel, and realize driving the OLED panel with lower power consumption.

Description

technical field [0001] The invention relates to an equalization method for driving an OLED panel with low power consumption. Background technique [0002] In recent years, the resolution of mobile phones has increased. In addition, mobile phones are used more for entertainment purposes, such as watching videos, playing games, etc., rather than making calls. Therefore, there is an urgent need for a low-power drive system that can use batteries for a long time. Currently, the RGBG array method is widely used as an OLED panel array method, but the RGBG method consumes a large amount of dynamic current when driven by the panel physical sub-pixel layout. Such as figure 2 As shown, the pixel array structure of the RGBG panel, D1-D8 represent the data of the panel. In line D1, red and blue sub-pixels alternate with each H line; in line D2, green one and green two sub-pixels alternate with each H line; in line D3, contrary to D1, blue and red sub-pixels alternate with each H lin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208H05B45/30
Inventor 李咏柱何传龙
Owner 晟合微电子(肇庆)有限公司
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