Lg Chem, Ltd

Areum Kim

Joonhyung Kim

Jaehyun Yoo

Sungeun Park

An infrared transmitting ink composition for inkjet, a method of forming a bezel pattern using the same, a bezel pattern manufactured thereby, and a display substrate comprising the same are disclosed. The ink composition may check alignment marks using an infrared camera and detect pressure marks by non-destructive inspection even after the bezel pattern thereof is printed on a display substrate, and also may improve the adhesion to the substrate and the performance of inkjet process. The infrared ray transmitting ink composition for ink jet comprises a lactam black pigment, a dispersant, an epoxy compound, a vinyl ether compound, an oxetane compound, a photopolymerization initiator and an organic solvent.

Infrared ray transmittance ink composition for inkjet, method for preparing a bezel pattern using the same, the bezel pattern using the same method and display panel comprising the bezel pattern

The present invention relates to an ultraviolet curable ink composition including a colorant, an epoxy monomer, an oxetane monomer, a cationic photopolymerization initiator, and a polymerization inhibitor, wherein the weight ratio of epoxy monomer:oxetane monomer is 1:0.5 to 1:6, to a method for forming a bezel pattern by using the same, to a bezel pattern manufactured thereby, and to a display substrate having the same.

Ultraviolet curable ink composition, method for manufacturing bezel pattern in display substrate by using same, and bezel pattern manufactured thereby

A photopolymerizable composition for forming a bezel pattern developed to be applied on a display substrate, a method for forming a bezel pattern using the same, a bezel pattern manufactured thereby, a display substrate comprising a bezel pattern manufactured thereby, and a rework method for removing a bezel pattern having a defective printed pattern are disclosed herein. In some embodiments, the composition includes a colorant, an epoxy monomer, an oxetane monomer, a vinyl monomer, a cationic photopolymerization initiator, an adhesion promoter and a diluting solvent, the oxetane monomer comprises a monofunctional oxetane monomer and a difunctional oxetane monomer. The composition is suitable for manufacturing a bezel pattern that is easily removed, has sufficient adhesion to a display substrate, and good curing sensitivity and pencil hardness, without requiring a high-temperature heating process.

Photopolymerizable composition for forming bezel pattern, method for forming bezel pattern using same, and bezel pattern manufactured thereby

Disclosed are an infrared transmitting ink composition for an ink jet, a method for forming a bezel pattern by using the same, a bezel pattern formed thereby, and a display substrate comprising the same, wherein the infrared transmitting ink composition enables the check of align markers through an infrared camera and the detection of pressure marks through non-destructive inspection even after the bezel pattern is printed on the display substrate, has excellent storage stability, curing sensitivity, and adhesion with a basic material, and can improve an ink jet process performance. The infrared transmitting ink composition for an ink jet comprises: a lactam black pigment, a perylene black pigment, or a combination thereof; a dispersant; an epoxy compound; an oxetane compound; a photo-polymerization initiator; and an organic solvent.

Infrared transmitting ink composition for ink jet, method for forming bezel pattern by using same, bezel pattern formed thereby, and display substrate comprising same

An ultraviolet curable composition and a waveguide manufactured from the same are disclosed herein. In an embodiment, an ultraviolet curable composition for light shielding of a waveguide, comprises a colorant, an acrylate monomer, a urethane acrylate oligomer, an organosilane and a photopolymerization initiator, wherein adhesion between the cured composition and a glass substrate is 5B or greater by a ASTM D3359 standard and/or is 1,500 mN or greater by a microscratch test (MST).

Waveguide edge light shielding composition having excellent adhesive strength

An ultraviolet curable black ink composition, a bezel pattern forming method using the same, a bezel pattern produced by the method, and a display substrate including the bezel pattern; are disclosed herein. In some embodiments, an ultraviolet curable ink composition includes a black pigment, a dispersant, an epoxy compound, an oxetane compound, a light diffusing agent, a photopolymerization initiator, and an organic solvent. The ultraviolet curable black ink composition is developed to be applied to a cover window film of a foldable display, has excellent light shielding properties and folding properties at a thin thickness, and as a light diffusing agent is applied to the ink, prevents surface wrinkles from generating due to a difference in the curing rate of the upper and power portions of a bezel, by means of UV curing alone without a pretreatment process.

Ultraviolet curable black ink composition for foldable display and bezel pattern forming method using same

A waveguide and a method for manufacturing the same are disclosed herein. In an embodiment, the waveguide includes a waveguide tube and a light-shielding film disposed on a cutsurface of the rim side of the waveguide tube. The light-shielding film has a thickness of 2 to 120 &#x3bc;m, an optical density (OD) of 0.01 to 0.7 on the basis of a light-shielding film thickness of 1.0 &#x3bc;m, and a hardness of 3H or more in accordance with ASTM D3363 standard.

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Daejeon, South Korea

Areum Kim