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

Display product electrode wire protection method and display product

A technology for displaying products and electrode wires, which is applied in the direction of circuits, electrical components, and electrical solid devices, and can solve problems such as bright and dark spots in the effective display area, lower product yields, and influence on the progress of mass production of products, so as to reduce display Defective problems, improve product yield, and ensure the effect of progress

Inactive Publication Date: 2019-12-31
BOE TECH GRP CO LTD +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the array (Array) process engineering, for the area of ​​the display product that is not covered by the unit area, the SD line has a phenomenon that the titanium layer above the aluminum layer is suspended due to the side erosion of the aluminum layer by acid and alkali.
After the titanium layer is suspended, the titanium layer on the top layer (Top layer) of the SD line will It is easy to fall off and fall into the active display area (AA area, Active Area) to form debris, which makes the anode line and the pixel unit (Pixel) short circuit, resulting in bright and dark spots in the active display area, resulting in poor display and lower product yield. Affect the progress of mass production of products

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
  • Display product electrode wire protection method and display product
  • Display product electrode wire protection method and display product
  • Display product electrode wire protection method and display product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] For display products, it includes at least a unit area and an IC binding area; the unit area includes an active display area (Active Area, referred to as AA area) and a marking and test area; the active display area includes anode lines and several pixel units. A part of the electrode line extends into the unit area, and the other part is in the IC binding area. Since the electrode line in the IC binding area is not covered by the thin film layer of the unit area, in the subsequent array process flow after the electrode line is prepared, The aluminum layer in the middle of the electrode line is easily etched by acid, alkali, etc. and the titanium layer above the aluminum layer is suspended, and the titanium layer of the electrode line is easy to fall off and fall into the effective display area when the electrode line is washed under high pressure, forming debris, resulting in pixel failure. The unit is damaged, causing bright and dark spots in the effective display area...

Embodiment 2

[0040] Figure 4 It is a schematic diagram of the structural design of the IC binding area of ​​a display product provided by Embodiment 2 of the present invention. Such as Figure 4 As shown, according to another aspect of the present invention, the present invention also provides a display product, including electrode lines 1, and further comprising: a protective layer 2 formed at least in the area where the electrode lines are not covered by the unit area of ​​the display product. In other words, there is a protective layer 2 on the part of the electrode lines 1 not covered by the display product unit area.

[0041] Further, the protective layer 2 is a silicon nitride insulating layer.

[0042] Further, the silicon nitride insulating layer has a thickness of 1000-5000A.

[0043] Further, in the IC binding area, the protective layer 2 corresponds to the shape of the electrode lines and covers all the electrode lines, and the width of the electrode lines covered by the pro...

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

No PUM Login to View More

Abstract

The invention provides a display product electrode wire protection method and a display product. The protection method is characterized in that a protection layer is formed at least in an area, whichis not covered by a display product unit area, of an electrode wire so as to protect the electrode wire which is not covered by the display product unit area. The protection method is advantaged in that the protection layer on the electrode wire which is not covered by the display product unit area is formed, so the electrode wire of the display product cannot be laterally etched by acid, alkali and other substances in the subsequent array process engineering, a problem of poor display caused by falling of a titanium layer of the electrode wire and falling into the effective display area of the display is reduced, the product yield is improved, and the mass production progress of the product is guaranteed.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for protecting electrode lines of a display product and a display product. Background technique [0002] At present, the IC bonding (IC Bonding) area in display products can also be called the gold finger area, whether it is a hard board (Panel) gold finger area or a flexible circuit board (Flexible Printed Circuit, referred to as FPC) binding gold finger Each region has electrode lines, which are also called SD (Source Drain, source and drain) lines. [0003] Please refer to figure 1 , figure 1 It is a structural schematic diagram of the SD line structure in the prior art and the aluminum layer in the SD line is undercut and the titanium layer is suspended. Such as figure 1 As shown, the structure of the SD wire is titanium (Ti) / aluminum (Al) / titanium (Ti), that is, two layers of titanium sandwich a layer of aluminum. In the array (Array) process engineering, for ...

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): H01L27/12
CPCH01L27/124H01L27/1244
Inventor 彭利满白妮妮张倩倩张国苹
Owner BOE TECH GRP CO LTD
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