Unlock instant, AI-driven research and patent intelligence for your innovation.

Thin film transistor, manufacturing method for thin film transistor, array substrate and organic light-emitting display panel

A thin-film transistor and array substrate technology, applied in the display field, can solve problems such as complex process, low yield, and unsuitability for flexible substrates

Active Publication Date: 2014-04-30
BEIJING BOE OPTOELECTRONCIS TECH CO LTD +1
View PDF7 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing conditions for manufacturing low-temperature polysilicon TFTs are relatively harsh. Specifically, for the production of low-temperature polysilicon TFTs, it is generally necessary to deposit amorphous silicon first, then perform hydrogen removal treatment, and then perform laser annealing after treatment, and then expose and etch. The steps need to go through at least 3-4 mask processes, the process is complicated and the yield is relatively low
In addition, the temperature of making low-temperature polysilicon TFT is relatively high, which is not suitable for making on flexible substrates

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
  • Thin film transistor, manufacturing method for thin film transistor, array substrate and organic light-emitting display panel
  • Thin film transistor, manufacturing method for thin film transistor, array substrate and organic light-emitting display panel
  • Thin film transistor, manufacturing method for thin film transistor, array substrate and organic light-emitting display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1: thin film transistor.

[0059] the following to figure 1 As an example, the thin film transistor provided by the embodiment of the present invention is introduced, such as figure 1 As shown, the thin film transistor includes at least an active layer 35, and also includes a first conductive layer 36 and a second conductive layer 37 located on the upper and lower sides of the active layer 35 and in contact with the active layer 35, that is to say, the active layer 35 is sandwiched between the first conductive layer 36 and the second conductive layer 37; wherein, the active layer 35 is made of carbon nanotubes with semiconductor properties or graphene materials with semiconductor properties; the first conductive layer 36 and the second conductive layer The conductive layer 37 is composed of a secondary electron emission layer having an electron multiplication function.

[0060] Of course, the TFT usually also includes a gate 31, a gate insulating layer 32 a...

Embodiment 2

[0071] Embodiment 2: array substrate.

[0072] The array substrate provided by Embodiment 2 of the present invention is similar to the prior art, and includes a substrate and a plurality of pixel units arranged in a matrix on the substrate, and each pixel unit includes at least one thin film transistor, and the thin film transistor is The thin film transistor provided in the above embodiments.

[0073] The arrangement of the thin film transistor and the organic light emitting device OLED in the organic light emitting display panel will be described below.

[0074] see figure 2 The array substrate provided by Embodiment 2 of the present invention further includes an organic light-emitting device OLED located in each pixel unit. The light-emitting layer 43 between the anodes 42, the anode 42 is connected to the drain 34 in the thin film transistor; wherein, at least one of the cathode 41 and the anode 42 is made of carbon nanotube or graphene material with conductive properti...

Embodiment 3

[0084] Embodiment 3: an organic light emitting display panel.

[0085] An embodiment of the present invention also provides an organic light emitting display panel, including the above-mentioned array substrate. The organic light-emitting display panel may be any product or component with a display function such as electronic paper, OLED panel, digital photo frame, mobile phone, and tablet computer.

[0086] In the organic light-emitting display panel provided by the embodiment of the present invention, the active layer in the thin film transistor is composed of carbon nanotubes with semiconductor properties or graphene materials with semiconductor properties, so that the carrier mobility of the semiconductor is relatively high, so that the organic light-emitting The stability of the display device is higher; at the same time, the first conductive layer and the second conductive layer are made respectively on the upper and lower sides of the active layer, and the first conduct...

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
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a thin film transistor, a manufacturing method for the thin film transistor, an array substrate and an organic light-emitting display panel, and provides the thin film transistor which is simple in structure and manufacturing technology. The thin film transistor at least comprises an active layer which is made of a carbon nano tube material with characteristics of a semiconductor or a graphene material with characteristics of the semiconductor, and further comprises a first conducting layer and a second conducting layer, wherein the first conducting layer and the second conducting layer are located on the upper side and the lower side of the active layer, are in contact with the active layer and are composed of secondary electron emission layers with the electronic multiplication function.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a thin film transistor and a manufacturing method thereof, an array substrate and an organic light-emitting display panel. Background technique [0002] The organic light-emitting display panel refers to a panel including organic light-emitting devices, such as OLED (Organic Light Emitting Diode, organic light-emitting diode) or other organic electroluminescent elements EL (Electro Luminescent, electroluminescent elements). The most commonly used light emitting device is OLED. An organic light emitting display panel is a panel using an organic light emitting display device. Each pixel structure of the panel includes an organic light emitting device. Since the organic light emitting device is a self-luminous display device, there is no need for a backlight source in this type of panel. Due to the advantages of thinness, lightness, self-illumination, wide viewing angle, high defi...

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
IPC IPC(8): H01L29/786H01L27/32
CPCH01L29/0603H01L29/66045H01L29/78687H10K59/1201H10K59/80518H10K59/80517H10K59/80524H01L29/45H01L29/66742H01L29/66969H01L29/78684H01L29/78696H10K59/125H10K59/1213H10K85/221H10K10/486H10K10/466H10K77/111H10K59/123H10K50/82H10K50/818H10K59/122H10K71/00H10K50/81H10K50/828H10K2102/00H10K2102/311H01L29/1606
Inventor 田宗民谢振宇陈旭
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD