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Flexible electronics with fluid cavity design

A fluid cavity and fluid technology, applied in organic semiconductor devices, computing, circuits, etc., can solve the problem of long duration of image distortion

Active Publication Date: 2022-07-22
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the assembled layer deformation is fully recoverable, excessively long relaxation times can distort the image for too long

Method used

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  • Flexible electronics with fluid cavity design
  • Flexible electronics with fluid cavity design
  • Flexible electronics with fluid cavity design

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Embodiment Construction

[0014] The present invention is a design for a display device including a flexible strain / stress sensitive display, such as an organic light emitting diode (OLED) module, wherein the strain / stress sensitive display is allowed to be substantially free in a cavity filled with a fluid or fluid-like material float. Although this specification refers specifically to OLEDs, the present invention may also be applied to other strain / stress sensitive flexible display modules such as electrowetting, electrophoretic, MEMS or flexible liquid crystal display modules without departing from the intended scope of the present invention. The fluid cavity design of the present invention can also be used to protect other strain / stress sensitive elements that may be present in display devices, such as tactile sensors or photovoltaic layers that generate power for the device. Unlike current designs, in the construction of the present invention, the OLED module is mechanically isolated from the rest...

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Abstract

The present invention is a flexible display that includes a fluid chamber, a fluid within the fluid chamber, and a strain / stress sensitive module positioned within the fluid chamber. The strain / stress sensitive module includes a flexible substrate, a flexible encapsulation layer, and an OLED layer positioned between the flexible substrate and the flexible encapsulation layer.

Description

Background technique [0001] Manufacturers of mobile handsets are constantly looking for ways to differentiate their devices in the marketplace. Current trends have focused on thinner displays, higher resolution, higher contrast, and increased display area without making the device too large. More recently, curved displays or rounded display edges have been attempted to gain customer attention. With the adoption of organic light emitting diodes (OLEDs), and in particular flexible OLEDs, there is now a strong drive to produce as foldable or rollable devices, so that in addition to being compact, they can also be expandable to form more Large continuous display. [0002] One focus of current attempts to produce foldable or rollable devices is to make the device less resistant to folding by segmenting or corrugating a portion of the structure at specific locations. Because multilayer displays are subject to repeated folding and unfolding events, other attempts have focused on m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32G06F3/041G09F9/30H01L51/00H10K99/00
CPCG06F2203/04102G06F3/0412H10K59/40H10K77/111H10K2102/311G06F3/041G09F9/301Y02E10/549
Inventor 艾伯特·I·埃费拉茨费伊·T·萨蒙
Owner 3M INNOVATIVE PROPERTIES CO