Method and system for driving displaying of display unit through analog and digital hybrid drive and drive circuit

Abstract

The invention discloses a method for driving displaying of a display unit through analog and digital hybrid drive. The method comprises the following steps that analog drive quantity controls the illumination brightness of the display unit; under the illumination brightness, digital drive quantity controls the illumination time of the display unit. The combination of the illumination brightness and the illumination time controls the illumination of the display unit, the rich gray scale and color are realized, the gray scale and color gradation expression ability of an image is obviously improved, the display of high contrast and high dynamic range is realized, and meanwhile, the system power dissipation and design requirements of a drive chip are reduced. The invention further discloses asystem for driving displaying of the display unit through analog and digital hybrid drive, and a drive circuit adopting analog and digital hybrid drive.

Description

technical field [0001] The invention relates to a display unit display method, system and drive circuit, in particular to a method, system and drive circuit for analog and digital hybrid drive display unit display. Background technique [0002] Active display devices such as traditional LEDs, QLEDs, OLEDs, Micro-LEDs, and Micro-OLEDs usually use analog drive methods, such as voltage drive or current drive, to drive the display of sub-pixels. In order to achieve high grayscale, high contrast, and high dynamic range image display, the traditional driving method requires that the driver chip must be divided into 256 levels through a high-precision digital-to-analog converter within a small driving voltage or driving current range. Even higher display grayscale. This puts high demands on the driver chip, manufacturing process and materials, and directly affects the yield rate of the product. At the same time, in the traditional analog driving method using voltage drive or curr...

AI Technical Summary

Problems solved by technology

At the same time, in the traditional analog driving method using voltage drive or current drive, the luminous time of each sub-pixel is the same, and even the sub-pixels with lower gray levels need to maintain the luminous time of almost one frame, which greatly increases the low-gray level image. The difficulty of grayscale control also causes waste of power consumption, which is not conducive to the power consumption control of active light-emitting display devices or equipment such as LED, OLED, QLED and Micro-OLED.

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