Pixel unit circuit, pixel circuit, driving method and display device

Abstract

The invention provides a pixel unit circuit, a pixel circuit, a driving method and a display device. The pixel unit circuit includes a light emitting element, a storage capacitor module, a driving transistor, a light emitting control module, a charging compensation control module, and a voltage control module. A first end of the light emitting element is connected with a first voltage input end. The control end of the light emitting control module is connected with a light emitting control line, a first end is connected with a second voltage input end, and a second end is connected with a second pole of the driving transistor. The light emitting control module controls whether the second pole of the driving transistor is connected with the second voltage input end under the control of the light emitting control line. The charging compensation control module controls whether the gate of the driving transistor is connected with a data line under the control of a gate line. The voltage control module is connected with the first voltage input end, and is used for controlling the voltage value of a first voltage input to the first voltage input end. The brightness of the light emitting element can be adjusted, and switching between a high-brightness mode and a high-contrast mode can be realized.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a pixel unit circuit, a pixel circuit, a driving method and a display device. Background technique [0002] Silicon-based OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) microdisplay is at the intersection of microelectronics technology and optoelectronic technology, combining OLED technology and CMOS (Complementary Metal Oxide Semiconductor, Complementary Metal Oxide Semiconductor) technology. The cross-integration with the microelectronics industry has promoted the development of a new generation of micro-displays, and also promoted the research and development of organic electronics on silicon, and even molecular electronics on silicon. [0003] Existing silicon-based OLED microdisplays cannot effectively adjust the brightness of the Micro (micro) OLED itself, there is a dynamic afterimage, and the data voltage range on the data line is narrow so tha...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a pixel unit circuit, a pixel circuit, a driving method and a display device to solve the problem that the existing pixel unit circuit cannot effectively adjust the brightness of the light-emitting element itself and cannot switch between high brightness and high contrast modes The problem

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