Samsung Display Co., Ltd.

Samsung Displayco., Ltd.

Hyun Joon Oh

Sang-Il Park

Min-Hoon Choi

Hye-Jin Oh

Jeoung Sub Lee

Sang Hoon Kim

Heonjung Shin

Jeoungsub Lee

Heon Jung Shin

Bo A Kim

In Sun Hwang

Kyung Tae Kim

Daeho Yoon

Seung Hwan Kim

Sanghoon Kim

Junghoon Han

Taehyeog Jung

Su-Hyoung Kang

Jeong Woo Park

Seung Ho Kim

Woo Jin Cho

Hoi Kwan Lee

Boa Kim

Hee Kyun Shin

Kyungtae Kim

Jeongeun Kim

Cheol Min Park

Minhyuck Kang

Jung Woo Moon

Joohyeon Lee

An electronic apparatus includes an electronic panel foldable together with a window; and a first functional layer and a second functional layer each foldable together with the window and the electronic panel. The second functional layer is disposed farther from the window than the first functional layer, and has a thickness in a range from about micrometers to about 50 micrometers and a modulus in a range from about 3 gigapascals to about 8 gigapascals, and the first functional layer is disposed closer to the window than the second functional layer, and has both a thickness equal to or greater than that of the second functional layer, and a modulus less than that of the second functional layer.

Electronic apparatus

Disclosed is a display device including a display module that has at least one folding area, a first film disposed on the display module and having a first modulus, a second film disposed on the first film, being farther from the display module than the first film, and having a second modulus less than the first modulus, and a third film disposed on the second film, being farther from the display module than the second film, and having a third modulus less than the second modulus. The third modulus is equal to or less than about one-sixth of the first modulus.

Display device

A window for a display device includes: a film having flexibility; and at least one coating layer disposed on the film. As tensile stress acting on the film increases, the film is elastically deformed in a first range of strains of the film and plastically deformed in a second range of strains of the film greater than the first range, the first and second ranges being defined by a relationship between the tensile stress and a strain of the film in accordance with the tensile stress. The film has a yield strain in a third range from about 1.9% to about 2.25%, and the yield strain is defined as the strain of the film when a yield stress of the relationship in the first range is applied to the film.

Window and display device having the same

An electronic apparatus includes an electronic panel foldable together with a window; and a first functional layer and a second functional layer each foldable together with the window and the electronic panel. The second functional layer is disposed farther from the window than the first functional layer, and has a thickness in a range from about 30 micrometers to about 50 micrometers and a modulus in a range from about 3 gigapascals to about 8 gigapascals, and the first functional layer is disposed closer to the window than the second functional layer, and has both a thickness equal to or greater than that of the second functional layer, and a modulus less than that of the second functional layer.

An exemplary embodiment provides a cover window for a display device, including: a first film; a second film disposed on the first film; and an adhesive layer disposed between the first film and the second film, wherein the adhesive layer includes an elastic polymer, and wherein a ratio of a thickness of the second film to a thickness of the first film is in a range of 0.2 to 5.

Cover window for display device and display device including the same

A cover window for a display device includes: a first film; a second film on the first film; and an adhesive layer between the first film and the second film. The adhesive layer has a lap shear modulus in a range of 20 kPa to 50 kPa.

A cover window of a flexible display device includes a base film, a support layer on the base film, and a bead layer on the support layer. The bead layer includes a plurality of beads distributed at a surface of the cover window and a binder for binding the beads. A portion of at least one bead of the beads is exposed to outside.

Cover window of a flexible display device and method of manufacturing a cover window of a flexible display device

The present disclosure relates to a window for a flexible display device, including: a first film including a transparent base film and a plurality of holes passing through the transparent base film; a second film overlapping the first film; a buffer layer between the first film and the second film to attach a first side of the first film and a first side of the second film; and a hard coated layer on a second side of the second film.

Window for flexible display device and flexible display device having the same

A method of detecting defects of a glass substrate includes cutting a glass mother substrate into a plurality of glass substrates, penetrating ions into an incision surface of the glass substrate to visualize defects of the incision surface, and photographing the defects of the incision surface to determine a bending strength of the glass substrate based on a size of the defects.

Method for detecting defects of glass substrates

A flexible display device including a display panel configured to display an image, a touch screen panel on the display panel, and a window substrate covering the touch screen panel. The window substrate includes: a flexible base layer including a first surface facing an outside and a second surface facing the display panel in an opposite direction to the first surface; a first coating layer having hardness higher than that of the base layer and having a plurality of first coating tiles arranged on the first surface of the base layer thereof, at a first gap from each other; and a second coating layer having hardness higher than that of the base layer and having a plurality of second coating tiles arranged on a layer different from the first surface of the base layer thereof, at a second gap from each other.

Flexible window substrate and flexible display device having the same

A cover window for a display device includes a first film; a second film on the first film; an adhesive layer between the first film and the second film; a coating layer on the second film; and an inner anti-reflective layer between the first film and the coating layer.

There is provided a flexible display device including a display panel for displaying an image, and a window substrate covering the touch screen panel, the widow substrate including a flexible base layer including an externally facing first surface, and a second surface opposite the first surface and facing the display panel, a hard coating layer having a hardness that is larger than that of the base layer, and including a plurality of coating tiles on the first surface of the base layer that are spaced to have a gap between adjacent ones of the coating tiles, and a self-healing coating layer including a self-healing material and covering the hard coating layer on the base layer.

A display device according to one or more embodiments of the present invention includes: a flexible display panel that is configured to be widened or narrowed, the flexible display panel including a display part configured to display an image at a first surface of the flexible display panel, and a bending part configured to be folded in a direction away from the display part; and a driving unit including one or more rollers in close proximity to the bending part, and configured to rotate to widen or narrow the flexible display panel.

Growing community of inventors

Seongnam-si, South Korea

Hyun Joon Oh