Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Carbon nanotube thin-film transistor, AMOLED (active matrix organic light emitting diode) pixel flexible driving circuit and manufacturing method thereof

A carbon nanotube thin film and carbon nanotube technology are applied in AMOLED pixel flexible driving circuit and its production, carbon nanotube thin film transistor and its production field, which can solve the problem that the OLED light-emitting requirements cannot be met, and the transistor mobility is low and cannot be guaranteed. Flexibility and other issues, to avoid layer jump connections, low operating voltage, and low hysteresis

Inactive Publication Date: 2015-04-29
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
View PDF12 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a carbon nanotube thin film transistor and its manufacturing method, AMOLED pixel flexible drive circuit and its manufacturing method, which solves the problem of low transistor mobility in the prior art, which cannot meet the needs of OLED light emission, and the problem in the prior art. Active layer materials are difficult to deposit on flexible materials or cannot guarantee flexibility

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Carbon nanotube thin-film transistor, AMOLED (active matrix organic light emitting diode) pixel flexible driving circuit and manufacturing method thereof
  • Carbon nanotube thin-film transistor, AMOLED (active matrix organic light emitting diode) pixel flexible driving circuit and manufacturing method thereof
  • Carbon nanotube thin-film transistor, AMOLED (active matrix organic light emitting diode) pixel flexible driving circuit and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The inventors have confirmed through a large number of test results that the performance of the inorganic thin film transistor device with carbon nanotubes as the active layer is well beyond the basic requirements of OLED light emission. And the performance of the polymer-separated semiconductor large-diameter carbon nanotubes used in the present invention has been greatly improved, which is no worse than that of silicon-based semiconductor transistors. Carbon nanotube conductive materials can be solubilized, and flexible drive circuits can be prepared by printing, so the solubilized carbon nanotubes can be deposited on flexible substrate materials by inkjet printing, screen printing or roller printing, avoiding the traditional patterning processing method. The OLED luminescent material itself can also be made into a solution, and a flexible display device can be prepared by printing. Therefore, the present invention can promote the integration of the flexible driving ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

A thin film transistor (TFT), AMOLED pixel flexible drive circuit and manufacturing method; the AMOLED pixel flexible drive circuit comprises a switching TFT and a driving TFT; both the switching TFT and the driving TFT comprise: a substrate (1), and a gate electrode (6), a source electrode (2), a drain electrode (3), an active conductive layer (4) and a dielectric layer (5) all formed on the substrate (1); the active conductive layer (4) is a carbon nano tube; and the drain electrode of the switching TFT is electrically connected to the gate electrode of the driving TFT. The carbon nano tube thin film transistor has a great mobility ratio and a high switch ratio, thus better satisfying the requirements on light emission of OLED pixels. In addition, the present invention realizes manufacturing of an AMOLED pixel drive circuit on a flexible substrate, has a simple process, easy operation, low costs and good repeatability, and is suitable for large-scale industrial production, thus establishing a foundation for large-area printing of a flexible display.

Description

technical field [0001] The invention belongs to the field of displays, in particular to a carbon nanotube thin film transistor and a manufacturing method thereof, an AMOLED pixel flexible driving circuit and a manufacturing method thereof. Background technique [0002] A general flat-panel display is composed of two basic parts, the display pixel and the driving circuit. In a liquid crystal display, the display pixels are an array of cells filled with liquid crystal material. The driver circuit is a transistor circuit that controls the switching (lighting, flipping) of each pixel. Organic Light Emitting Diode (OLED) has unique advantages such as high brightness, high contrast, ultra-light and ultra-thin, wide viewing angle, fast response, low power consumption, and all-solid-state. Therefore, it has received wide attention in the flat panel display industry and is considered to be the most likely display device to replace LCD. Its driving circuit is the same as LCD, and i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L29/786H01L29/49H01L21/336C01B31/02G09G3/32H10K99/00
CPCH10K59/125H10K85/221H10K10/484Y02E10/549Y02P70/50H01L21/02606H01L29/0669H01L29/12H01L29/786H01L29/78618H01L29/78696H10K77/111
Inventor 徐文亚赵建文钱龙苏文明崔铮
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com