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Flexible display and manufacturing method therefor

A flexible display and manufacturing method technology, which is applied to electric solid-state devices, semiconductor devices, electrical components, etc., can solve problems such as defects, abnormal display, uneven surface, etc., so as to improve the problem of surface protrusions of the film layer and increase the process yield , the effect of good display quality

Active Publication Date: 2019-01-29
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing flexible displays include a multi-layer structure. However, in the process of manufacturing a flexible display, bubbles generated by the heat treatment process are likely to form in the multi-layer structure to make the surface uneven, so it is easy to produce defects when forming subsequent film layers. And then lead to abnormal display problems

Method used

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  • Flexible display and manufacturing method therefor
  • Flexible display and manufacturing method therefor
  • Flexible display and manufacturing method therefor

Examples

Experimental program
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Effect test

experiment example 1

[0042] The following will introduce examples 1 to 6 and their comparisons using different first curing temperatures (hereinafter represented by T1) and second curing temperatures (hereinafter represented by T2) to respectively cure the first flexible layer and the second flexible layer. The flexible displays of Example 1 to Comparative Example 2. Moreover, the measurement of the number of air bubbles between the first flexible layer and the buffer layer was carried out 3 times in three process stages for the flexible displays of Examples 1 to 6 and Comparative Examples 1 to 2, wherein the three process stages They are: 1) after curing the first flexible layer and before forming the buffer layer; 2) after performing the heat treatment process on the amorphous silicon layer and before performing the excimer laser annealing process; 3) after performing the heat treatment process on the interlayer insulating material layer and before forming the second metal layer. The above-ment...

experiment example 2

[0052] Please refer to figure 2 , figure 2 Static thermomechanical analysis spectra of the second flexible layer of the flexible display of Examples 7 to 9 and Comparative Example 3 are shown. exist figure 2 The x coordinate in is the deformation of the second flexible layer (in ppm), the y coordinate is the ambient temperature (in °C), and the slope is the coefficient of thermal expansion (in ppm / °C). In addition, in figure 2 Among them, the second flexible layer respectively has a temperature lower than the first glass transition temperature ( figure 2 The first coefficient of thermal expansion at Tg1), between the first glass transition temperature and the second glass transition temperature ( figure 2 The second coefficient of thermal expansion when it is between Tg2 and the third coefficient of thermal expansion that is greater than the second glass transition temperature.

[0053] Table 4 shows the parameter information used to prepare the second flexible laye...

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Abstract

The invention provides a method of manufacturing a flexible display and the flexible display. The present invention provides a method of manufacturing a flexible display comprising the following steps. A first layer of flexible material is formed on the carrier. The first layer of flexible material is cured at a first curing temperature to form a first flexible layer. A buffer layer is formed on the first flexible layer. A second layer of flexible material is formed on the buffer layer. The second layer of flexible material is cured at a second curing temperature to form a second flexible layer. The second curing temperature is less than the first curing temperature. An array of elements is formed on the second flexible layer.

Description

technical field [0001] The present invention relates to a display and a manufacturing method thereof, and in particular to a flexible (flexible, flexible) display and a manufacturing method thereof. Background technique [0002] With the widespread application of portable displays, the development of flexible displays is becoming more and more active, so as to achieve the purpose of displaying under different curved surfaces. Existing flexible displays include a multi-layer structure. However, in the process of manufacturing a flexible display, bubbles generated during the heat treatment process are likely to form in the multi-layer structure to make the surface uneven, so it is easy to produce defects when forming subsequent film layers. This leads to abnormal display problems. Contents of the invention [0003] At least one embodiment of the present invention provides a method for manufacturing a flexible display, which can improve the process yield of the flexible disp...

Claims

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Application Information

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IPC IPC(8): H01L27/32
CPCH10K59/12H10K59/1201
Inventor 陈发祥江丞伟陈泊如詹志诚林世亮
Owner AU OPTRONICS CORP
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