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

Flexible printed circuit board and display device

A flexible printed circuit and flexible printing technology, which is applied in the direction of printed circuit, printed circuit manufacturing, printed circuit components, etc., can solve the problems that the panel is prone to vibration, prone to failure, and the conductive layer of the flexible printed circuit board is broken, etc., to achieve improved Anti-fragmentation and adaptability, the effect of avoiding fracture or deformation

Active Publication Date: 2016-01-20
HEFEI BOE OPTOELECTRONICS TECH +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the flexible printed circuit board includes a base layer A, a conductive layer B, a green oil protection layer (SR layer) C and an IC component D, and the surfaces of all film layer structures are planar designs, and the conductive layer is arranged between the base layer and the Between the SR layers, during the anti-vibration test, vibration test and transportation process of the module, due to the gap between the panel and the plastic frame, the panel is prone to vibration, which drives the flexible printed circuit board to be twisted by force. When the circuit board is twisted and deformed by external force, it cannot be effectively buffered and protected, which may easily cause the conductive layer of the flexible printed circuit board to break, resulting in abnormal signals input to the panel, resulting in a high probability of failure
[0003] In existing flexible display devices, planar flexible printed circuit boards are usually used. Due to the special type and functionality of flexible display devices, flexible display devices are often bent and subjected to external forces (such as stretching or extrusion) during use. ), the planar flexible printed circuit board cannot provide effective cushioning for the external force received, and for multiple bending of the flexible display device, it is prone to failure, thus affecting the quality and service life of the flexible display device

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
  • Flexible printed circuit board and display device
  • Flexible printed circuit board and display device
  • Flexible printed circuit board and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 2 As shown, a corrugated flexible printed circuit board according to an embodiment of the present invention includes a base layer A, a conductive layer B above the base layer A, an SR layer C above the conductive layer B, and an IC component D in the middle, etc., the base layer A, The conductive layer B, the SR layer C and the IC component D are closely connected. The corrugated structure is respectively arranged on both sides of the IC. The corrugations are two continuous waves. Allocation, the protective layer covers the corrugated flexible printed circuit board, the amplitude and wavelength of the corrugation are determined according to the characteristics of the external force, and those skilled in the art can perform various transformations according to needs.

Embodiment 2

[0029] A corrugated flexible printed circuit board according to an embodiment of the present invention, the corrugated flexible printed circuit board includes a base layer A, a conductive layer B, an SR layer C and an IC component D, etc., the base layer A, the conductive layer B, the SR layer C and The IC components D are tightly connected, and the corrugated flexible printed circuit board is provided with a corrugated structure around the corrugated flexible printed circuit board. The corrugated waves are continuous multiple waves. Overlaid on the corrugated flexible printed circuit board, the amplitude and wavelength of the corrugation are determined according to the characteristics of the external force. Adopting this structure can implement buffering and protection in all directions of the corrugated flexible printed circuit board, and adopting a continuous multiple wave design can play a better and more stable protective role, thereby improving the overall fracture resist...

Embodiment 3

[0031] A corrugated flexible printed circuit board according to an embodiment of the present invention has basically the same structure as that of Embodiment 2, except that the corrugations are multiple groups of non-continuous corrugations, and this structure can realize the step-by-step buffering of external force, Make it less affected by external forces during the period.

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 discloses a corrugated flexible printed circuit board and a display device. The corrugated flexible printed circuit board is provided with a corrugated structure, the surface of the corrugated flexible printed circuit board is covered with a protective layer, and the corrugated structure Used for buffering when the corrugated flexible printed circuit board is subjected to external force, the display device includes the corrugated flexible printed circuit board. Using the corrugated flexible printed circuit board and display device of the present invention, a corrugated structure is arranged on the flexible printed circuit board, and a protective layer is covered on the surface of the flexible printed circuit board. When an external force is applied, the protective layer first plays a protective role, and then The corrugated structure is used for buffering, thereby protecting the flexible printed circuit board and the display device, effectively protecting the conductive layer of the flexible printed circuit board, preventing the conductive layer from being broken or deformed, and improving the anti-breaking and adaptability of the device.

Description

technical field [0001] The invention relates to the field of image display, in particular to a flexible printed circuit board and a display device. Background technique [0002] COF (ChipOnFilm, thin film chip integration) flexible printed circuit board is an important component connecting the panel and the printed circuit board in the thin film field effect display device. Such as figure 1 As shown, the flexible printed circuit board includes a base layer A, a conductive layer B, a green oil protection layer (SR layer) C and an IC component D, and the surfaces of all film layer structures are planar designs, and the conductive layer is arranged between the base layer and the Between the SR layers, during the anti-vibration test, vibration test and transportation process of the module, due to the gap between the panel and the plastic frame, the panel is prone to vibration, which drives the flexible printed circuit board to be twisted by force. When the circuit board is dis...

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 Patents(China)
IPC IPC(8): H05K1/02
CPCH01L23/4985H05K1/0281H05K1/189H05K3/284H01L2924/0002H01L2924/00H05K1/0271H05K1/028H05K1/181H05K5/0017
Inventor 夏龙
Owner HEFEI BOE OPTOELECTRONICS TECH