Abstract:
PROBLEM TO BE SOLVED: To provide a silicon thin film measuring method, a silicon thin film defect detection method, and a silicon thin film defect detector.SOLUTION: A silicon thin film measuring method for measuring crystallinity of a silicon thin film sample and life of a free carrier includes steps of: arranging a capacitive sensor on the silicon thin film sample to be separated therefrom by providing a predetermined air gap; measuring the size of the air gap by utilizing the capacitive sensor without operating an exciting light source module; operating the exciting light source module to irradiate the silicon thin film sample with excitation light of ultraviolet rays; measuring variation of electric conductivity of the silicon thin film sample by utilizing the capacitive sensor; and normalizing the variation of the electric conductivity on the basis of a measurement result of the air gap.
Abstract:
A laser machining device includes: a broadband light source, which generates a broadband laser beam; a first lens unit to which the broadband laser beam is incident and having a first effective focal length; a second lens unit spaced apart from the first lens unit in a first direction and having a second effective focal length; a beam splitter disposed between the first lens unit and the second lens unit, and which is movable in the first direction and a direction opposite to the first direction within the first effective focal length from the first lens unit, and splits the broadband laser beam passing through the first lens unit into a plurality of sub-laser beams; and a focusing lens spaced apart from the second lens unit in the first direction, and which focuses the sub-laser beams passing through the second lens unit on a substrate.
Abstract:
A method of manufacturing a glass includes forming a first etch protection layer on a first surface of a glass substrate, and forming a second etch protection layer on a second surface of the glass substrate; removing a part of the first protection layer and a part of the second protection layer by applying a laser pulse penetrating the glass substrate from above the first surface of the glass substrate; forming a cut part in the glass substrate by etching the glass substrate using an etching solution; and removing the first etch protection layer and the second etch protection layer. The second surface is opposite to the first surface.
Abstract:
A method of manufacturing a glass includes forming a first etch protection layer on a first surface of a glass substrate, and forming a second etch protection layer on a second surface of the glass substrate; removing a part of the first protection layer and a part of the second protection layer by applying a laser pulse penetrating the glass substrate from above the first surface of the glass substrate; forming a cut part in the glass substrate by etching the glass substrate using an etching solution; and removing the first etch protection layer and the second etch protection layer. The second surface is opposite to the first surface.
Abstract:
A foldable display device including: a flexible display module including a first area, a second area, and a foldable area between the first area and the second area; a first support part disposed under the flexible display module, and including a plurality of first carbon fibers extending in a first direction; and a second support part disposed under the first support part, and including a plurality of second carbon fibers extending in a second direction.