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Voltage drop compensation method, device and display device

A compensation method and voltage drop technology, applied in static indicators, instruments, etc., can solve problems such as the inability to realize large-scale commercial use

Active Publication Date: 2016-03-16
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] It can be found that if compensation is performed for each sub-pixel, the calculation amount is astronomical. According to the existing display drive circuit design, large-scale commercial use cannot be achieved.

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  • Voltage drop compensation method, device and display device

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Embodiment Construction

[0068] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0069] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguis...

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Abstract

The invention provides a voltage drop compensation method, a voltage drop compensation device and a display device. The voltage drop compensation method includes the following steps that: voltage drop of power source signals corresponding to a sub pixel set is determined; a first equivalent brightness drop value corresponding to the voltage drop is determined; the initial brightness value of each sub pixel in the sub pixel set is calculated; the target brightness of each sub pixel in the sub pixel set is calculated, wherein the target brightness of each sub pixel in the sub pixel set is the sum value of the first equivalent brightness drop value corresponding to the sub pixel set and the initial brightness value; and the driving signals of each sub pixel are generated according to the target brightness of each sub pixel in the sub pixel set, and are outputted. With the voltage drop compensation method, the voltage drop compensation device and the display device of the invention adopted, the calculation amount of voltage drop compensation can be reduced, and accurate and fast voltage drop compensation can be realized.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a voltage drop compensation method and device, and a display device. Background technique [0002] Organic light emitting diode (Organic Light Emitting Display, OLED) display device has self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, nearly 180° viewing angle, wide operating temperature range, and can realize flexible display and large-area comprehensive display. With many advantages such as color display, it is recognized by the industry as the display device with the most development potential. [0003] With the progress of the times and technology, AMOLED display devices with large size and high resolution are gradually developed. However, in the AMOLED display device, the same power supply voltage (VDD) is used as the input voltage of all sub-pixel circuits. It is unavoidable that due to the resistance of...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3258
CPCG09G3/3233G09G3/3225G09G2320/0223G09G2330/02G09G2320/0233
Inventor 孟松宋丹娜周杨杨飞
Owner BOE TECH GRP CO LTD
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