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Display device and driving method thereof

A display device and gate drive technology, applied to static indicators, instruments, etc., can solve the problems of short charging time, high data transmission broadband requirements, and inability to support high resolution, so as to avoid color shift and long charging time Effect

Inactive Publication Date: 2020-07-31
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, traditional pulse width modulation has the problems of short charging time, high bandwidth requirements for data transmission, and inability to support high resolution

Method used

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  • Display device and driving method thereof
  • Display device and driving method thereof
  • Display device and driving method thereof

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Embodiment Construction

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0051] see image 3 , which is a schematic diagram of a display device in an embodiment of the present application. The display device 10 includes a timing controller 100 , a first gate driving unit 101 , a second gate driving unit 102 , a first source driving unit 103 , a second source driving unit 104 and a display panel 105 . The timing controller 100 is electrically connected to the first gate driving unit 101 , the second gate driving unit 102 and the first source driving ...

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Abstract

The invention provides a display device and a driving method thereof. The time sequence controller converts the image gray scale data into a first time sequence control signal for controlling a firstgrid driving unit to output a pulse width modulation scanning signal and a third time sequence control signal for controlling the first source driving unit to output a pulse width modulation data signal; the time sequence controller outputs a second time sequence control signal for controlling the second grid driving unit to output a pulse amplitude modulation scanning signal; the second source driving unit outputs a pulse amplitude modulation data signal; a pixel circuit is used for controlling the light-emitting duration of a light-emitting element according to the pulse width modulation scanning signal, the pulse width modulation data signal and the pulse width modulation control signal, and the driving current value of the light-emitting element is controlled according to the pulse amplitude modulation scanning signal and the pulse amplitude modulation data signal. The display device avoids the color shift problem of traditional pulse amplitude modulation driving, and has the advantages of long sub-pixel charging time, general data bandwidth requirement and high resolution.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a display device and a driving method thereof. Background technique [0002] Such as figure 1 As shown, it is a traditional pulse-width modulation (Pulse-Width Modulation, PWM) 3T1C drive circuit for driving inorganic light-emitting diodes, where Scan1 is the charge scan signal, Vdata is the charge data signal, Scan2 is the discharge scan signal, and Vini is the reference voltage Signal, T1 is a charging transistor, T2 is a discharging transistor, T3 is a driving transistor, Cst is a storage capacitor, LED is an inorganic light-emitting diode, OVDD is a high level terminal, and OVSS is a low level terminal. figure 1 When the driving circuit shown is working, the charge transistor T1 charges the voltage at point g, and the discharge transistor T2 discharges the voltage at point g, and cuts out the gray scale in a pulse width modulation manner. [0003] Such as figur...

Claims

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Application Information

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IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 杨波黄泰钧梁鹏飞
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD