Abstract:
A flexible substrate for a display element of the present invention comprises: a matrix; a reinforcing member impregnated in the matrix; and a buffer layer formed on at least one side of the matrix, wherein during a mandrel bend test, a diameter of a bar having a crack is 7mm or less. The flexible substrate for the display element according to embodiments of the present invention improves a surface roughness, has outstanding moisture permeability, low thermal expansion coefficient, flexibility, and durability; and no cracks are generated.
Abstract:
본 발명은 매트릭스 및 상기 매트릭스에 함침된 보강재를 포함하고, 광 조사 전의 모듈러스(A)에 대한 광 조사 후의 모듈러스(B)의 비(B/A)가 1 미만이고, 광 조사 후의 유리전이온도가 250℃ 이상인, 이를 포함하는 표시 소자용 기판 및 이를 포함하는 디스플레이 장치에 관한 것이다.
Abstract:
PURPOSE: A flexible circuit board is provided to offer excellent transparency, flexibility, lightweight properties, and heat-resisting properties. CONSTITUTION: A flexible circuit board (10) comprises a matrix (1) and a reinforcing material (2) impregnated in the matrix. The matrix includes the copolymer of polyorganosiloxane resins and polysilsesquioxane. Weight change ratios, which are displayed as a first formula in a thermogravimetric analysis, of the flexible circuit board is under one percentage in 300°C. The polysilsesquioxane and the polyorganosiloxane are polymerized according to the weight ratio of 20:80 to 80:20.
Abstract:
PURPOSE: A flexible substrate is provided to reduce cyclization deformation and pyrolysis under a high temperature environment and increase transparency, flexibility, lightness and heat resistance. CONSTITUTION: A flexible substrate (10) comprises a matrix (1) and reinforcing material (2) which is included in the matrix. When the flexible substrate measured by thermogravimetric analysis (TGA), a weight change rate represented by an equation 1 is less than 1% at a temperature of 300°C. The weight change rate is 0.2-1%. The matrix comprises polyorganosiloxane resin replaced by halogen. The display device comprises the flexible substrate.
Abstract:
PURPOSE: A substrate for a display device is provided to reduce flatness and moisture permeability and to improve flex resistance, flexibility, and durability. CONSTITUTION: A substrate for a display device comprises a matrix(2), a reinforcing agent(1) impregnated in a matrix, a coating layer formed on at least one side of the matrix, and a barrier layer(4) formed on one side of the coating layer. If the elastic modulus of the matrix is E2 at 25°C and the elastic modulus of the coating layer is E3 at 25°C, E3/E2 is 5 x 10^4 or less. The coating layer has a gradient elastic modulus structure. The elastic modulus of the matrix at 25°C is 0.1GPa or less. The elastic modulus of the coating layer is 0.1GP-10GPa. The elastic modulus of the barrier layer is 10GPa or more. The coating layer comprises one or more selected from an acrylic-based resin, epoxy-based resin, silicon-based resin, urethane-based resin, and unsaturated polyester-based resin.
Abstract:
The present invention relates to a composite sheet which includes a matrix and a reinforcing material soaked in the matrix wherein the surficial energy at 25 °C of at least one among the upper surface and the lower surface of the matrix is 24 dyne/cm or more, and the surface roughness (Ra) of the matrix is 410 nm or less, to a method for manufacturing the composite sheet, to a substrate for a display device comprising the same, and to a displaying apparatus comprising the same.
Abstract:
The present invention relates to a composite sheet and a display device including the same, wherein the composite sheet includes a matrix and a reinforcing material impregnated in the matrix. The reinforcing material includes fiber glass with an aspect ratio of 1-10 which is the ratio of the longest diameter against the shortest diameter among diameters of a cross section or its composite.