Liquid optically clear adhesives for display applications

Lu, Di; Wang, J.; Li, C.; Yuan, Jiang; Sawanobori, Junichi; Lin, Jianming; Litke, A. M.; Levandoski, M.

doi:10.1109/icept-hdp.2012.6474653

Cited by 11 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The adhesive, which is interposed between a cover glass and a display panel, is one of the important parts in a display module. In addition to its function as an assembly adhesive, it improves optical clarity and legibility by preventing reflection of light from an external light source 2 . In a fabrication process of optoelectronic devices, a dry lamination method using pressure sensitive adhesive sheets has been widely applied.…”

Section: Introductionmentioning

confidence: 99%

69‐1: Inkjet‐Printable Optically Clear Silicone Resin for Display Fabrication

Yook

Gunn

Kyeong

et al. 2022

Symp Digest of Tech Papers

View full text Add to dashboard Cite

Inkjet‐printable optically clear silicone resins and fast photocurable optical silicone adhesive, exhibiting suitable viscosity for processability such as inkjet printing and dispensing, and excellent optical stability are described. The target utility of the optically clear resin is to provide a reliable solution for the fabrication of high quality display modules that require long‐term reliability.

show abstract

Section: Introductionmentioning

confidence: 99%

69‐1: Inkjet‐Printable Optically Clear Silicone Resin for Display Fabrication

Yook

Gunn

Kyeong

et al. 2022

Symp Digest of Tech Papers

View full text Add to dashboard Cite

show abstract

“…Optical encapsulation or bonding is one of the largest application areas for optically clear material, which is often called Optically Clear Resin (OCR) or Optically Clear Adhesive (OCA). [1] Acrylic resin has dominated the market because of optical clarity and ease of use. As the market and the applications evolve, silicone-based materials have been introduced into the market because of its softness, stable modulus over a wide range of temperatures, and photothermal stability.…”

Section: Introductionmentioning

confidence: 99%

36‐3: Novel Silicone Hotmelt Adhesive for Display Assembly Applications

Yamazaki

Ozaki

Imaizumi

et al. 2022

Symp Digest of Tech Papers

View full text Add to dashboard Cite

Silicone material is famous for its optical transparency and photothermal stability, for which it is often used in display assembly applications such as optical bonding or encapsulation. However, silicone material carries a limitation of CTE (Coefficient of Thermal Expansion) mismatching with most substrates, resulting in high thermal stress in the laminated body. In this presentation, a novel silicone hotmelt solution for these applications will be introduced. A newly developed silicone hotmelt adhesive provides excellent stress relaxation, mechanical toughness and adhesion capabilities for harsh reliability conditions; it also allows for unique methods of applying onto the substrate.

show abstract

“…In response to these changes, many different studies on the various elements of display devices, such as cover windows, touch sensors, substrates, transistors, and light-emitting layers, among others, have been conducted to ensure flexibility, leading to commercialization. − Among them, the optical adhesive film that bonds the substrates constituting the display also requires development to enhance its properties so that it can withstand external forces such as folding and rolling. Many studies have noted the advantages of the optical adhesive film in displays; it promotes accurate color and full-screen brightness of the image emitted from the light-emitting module while contributing to the high impact strength of the display by firmly attaching the substrate. − However, because of consumer demands for innovation, the form factor of electronic devices has changed and the thickness has decreased considerably, threatening the durability of the display itself. The thinner the object, the better the bending performance, as a lower radius of curvature can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Highly Stretchable and Transparent Optical Adhesive Films Using Hierarchically Structured Rigid-Flexible Dual-Stiffness Nanoparticles

Park

Byun

Lee

2020

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The demand for new forms of flexible electronic devices has led to the evolution of individual components comprising optical adhesive films that provide excellent optical transparency and high bonding strength while offering remarkable elasticity with high strain and recovery properties. Herein, a new type of highly elastic and transparent adhesive film is proposed using tailored rigid-flexible dual-stiffness nanoparticles (DSNs) composed of a rigid inorganic core and an elastic reactive coil shell. The hierarchically structured nanoparticles were prepared from SiO2 nanoparticles via the sequential surface modification with photoreactive flexible chains. The fabricated elastic adhesive film containing DSNs with an average diameter of 20 nm showed a high optical transmittance of 92% and adhesion strength of 19.9 N/25 mm. Increasing the content of the tailored nanoparticles in the adhesive film improved the elastic properties of the film such as elastic modulus (7.0 kPa), stress relaxation ratio (18.4%), and strain recovery rate (73.6%) due to the efficient elastic motion of the embedded DSNs. In addition, as the surface grafting density of elastic coil groups in the nanoparticle increased, a stronger bonding network was formed between the nanoparticles and the acrylic polymer matrix, thereby further improving the stress relaxation ratio (18.0%) and strain recovery rate (77.1%) of the optical film. Thus, the utilization of novel dual-stiffness nanoparticles produces optical adhesive films with high elasticity and optical transparency that are capable of withstanding external forces such as folding and stretching, which is essential for flexible electronic devices.

show abstract

Liquid optically clear adhesives for display applications

Cited by 11 publications

References 0 publications

69‐1: Inkjet‐Printable Optically Clear Silicone Resin for Display Fabrication

69‐1: Inkjet‐Printable Optically Clear Silicone Resin for Display Fabrication

36‐3: Novel Silicone Hotmelt Adhesive for Display Assembly Applications

Highly Stretchable and Transparent Optical Adhesive Films Using Hierarchically Structured Rigid-Flexible Dual-Stiffness Nanoparticles

Contact Info

Product

Resources

About