Flexible display screen and manufacturing method thereof

A technology for flexible display screens and manufacturing methods, applied to identification devices, instruments, etc., can solve problems such as lower yield rate, loose FPC binding, abnormal display, etc., to reduce the number of bending times, avoid film layer breakage, and avoid bending The effect of too small a radius

Inactive Publication Date: 2018-06-26
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] First, since the OLB area is a soft substrate, the binding end will be affected when bending, which will easily cause the FPC binding to loosen, resulting in abnormal display and lower yield;
[0005] Second, when bending the OLB area, the bending radius is too small, which may easily cause the film layer to break when the metal wiring is bent, resulting in line disconnection

Method used

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  • Flexible display screen and manufacturing method thereof
  • Flexible display screen and manufacturing method thereof
  • Flexible display screen and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a flexible display screen 1, which can be referred to Figure 1 ~ Figure 3 As shown, it includes a front 11 for display and a back 12 provided with a circuit board, a display area is set on the front 11, and the flexible display 1 also includes:

[0043] Outer Lead Bonding (OLB for short) zone 2, connected to the end of the front surface 11;

[0044] The binding area 22 is set on the outer lead welding area 2;

[0045] The bending part 21 is arranged on the outer lead welding area 2, and is located in the display area (the display area basically covers the area of ​​the front 11 except the edge, so the front 11 can be regarded as the display area equivalently in the figure) and the binding between zone 22;

[0046] A flexible printed circuit (FPC for short) 3 is fixed on the binding area 22;

[0047] The supporting member 4 is arranged on the back surface 12 of the flexible display screen 1;

[0048] Wherein, the flexible circuit board 3 is ...

Embodiment 2

[0052] This embodiment provides a method for manufacturing a flexible display screen, referring to Figure 1 ~ Figure 3 As shown, the flexible display screen 1 includes a front side 11 for display and a back side 12 provided with a circuit board, and a display area is arranged on the front side 11. After the glass substrate is removed from the mold, the flexible display is bent; the specific manufacturing method includes:

[0053] Provide an outer lead welding area 2, which is arranged at the end of the front surface 11;

[0054] Provide a binding area 22, set on the outer lead welding area 2;

[0055] A bending portion 21 is provided, which is arranged on the outer lead welding area 2, and is located between the binding area 22 and the display area (the display area basically covers the area of ​​the front side 11 except the edge, so the front side 11 can be viewed equivalently in the figure. for the display area);

[0056] Provide a flexible circuit board 3, fixed on the ...

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Abstract

The invention relates to the technical field of flexible display, and particularly relates to a flexible display screen and a manufacturing method thereof. The manufacturing method uses a bending fixture to fix an outer lead weld zone and a flexible circuit board of the flexible display screen, and then bends the bending fixture, so that the outer lead weld zone is bent as the bending fixture is bent; in addition, plastic supporting film having a certain stiffness is bonded between the flexible circuit board and the back surface of the flexible display screen, and the bent flexible circuit board is bonded to the back surface of the display screen through the supporting film; on the one hand, the supporting film can fix the flexible circuit board to avoid looseness of the flexible circuit board bound in a binding area in the bending and reduce the number of times of unnecessary bending of metal wires on the outer lead weld zone; on the other hand, the bending radius of the outer lead weld zone is adjusted through adjustment of the gap generated by the thickness of the supporting film, so that a metal wire film layer on the outer lead weld zone can be effectively prevented from beingbroken.

Description

technical field [0001] The invention relates to the technical field of flexible displays, in particular to a flexible display screen and a manufacturing method thereof. Background technique [0002] The bendability of the flexible display makes the flexible display have more advantages than the flat glass display technology, which greatly expands the terminal application of the flexible display. The size and shape diversity of flexible displays has great advantages for products, but it is also a challenge for structural design. Different from the traditional simple bending of FPC (Flexible Printed Circuit), the current market has put forward the demand for bending of the OLB (Outer Lead Bonding) area of ​​the PIN end of the FPC. [0003] The current bending method for the OLB area of ​​the PIN terminal is: directly bend the OLB area of ​​the flexible substrate after binding the FPC. This bending method has the following technical defects: [0004] First, since the OLB area...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/30
Inventor 李园园盛晨航
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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