Abstract: A display device includes a first substrate including a first surface and a second surface, which are opposite to each other, where the first substrate includes a rigid material, a second substrate disposed on the first surface of the first substrate, where the second substrate includes a flexible material, and a plurality of light-emitting elements disposed on the second substrate, where the first substrate further include first side surfaces disposed between the first and second surfaces, and first inclined surfaces disposed between the first surface and the first side surfaces, where the first side surfaces and the first inclined surfaces are at edges of the first substrate in a bending area where the second substrate is bent, and the display device further includes a filler disposed between a bottom surface of the second substrate and the first side surfaces of the first substrate, in the bending area.

Abstract: A display device includes a first substrate including a first area, a second area, and a bending area that is between the first area and the second area, and including a second inclined surface facing the bending area, a light-emitting element at the first area, and a first bending-protection layer at the first area and the second area, not overlapping the bending area, and including a first inclined surface facing the bending area and aligned with the second inclined surface.

Abstract: The polyester copolymer according to the present disclosure is excellent in processability, particularly in shear thinning characteristics, and thus can be applied to the production of various transparent containers by an EBM process.

Abstract: The present invention relates to a method of prepairing a heat-resistant polyamide by carrying out condensation polymerization with a monomer mixture including a diester compound and a diamine compound. The present invention provides an economical method of prepairing a heat-resistant polyamide in that a monomer, a raw material, is simply and chiefly prepared, and the polymerizing reaction time is short because it does not need solvent separately.

Abstract: A polyester/polycarbonate blend having superior thermal stability and superior color stability is disclosed. The polyester/polycarbonate blend comprises: (a) P(ET-CT) (poly(ethylene terephthalate-co-1,4-cyclohexylene dimethylene terephthalate) which is copolymerized with 1,4-cyclohexanedimethanol (CHDM) of 40 to 90 mol % with respect to total diol components; (b) polyethylene terephthalate (PET); (c) polycarbonate (PC); and (d) germanium of 1 to 100 ppm (weight ratio) with respect to total polyester/polycarbonate blend, wherein with respect to total polyester/polycarbonate blend, the amount of the P(ET-CT) and PET is 50 to 90 weight %, the amount of the PET is 1 to 6 times in weight ratio with respect to the P(ET-CT), and the amount of the PC is 10 to 50 weight %.

Abstract: The present invention relates to a method of prepairing a heat-resistant polyamide by carrying out condensation polymerisation with a monomer mixture including a diester compound and a diamine compound. The present invention provides an economical method of prepairing a heat-resistant polyamide in that a monomer, a raw material, is simply and chiefly prepared, and the polymerizing reaction time is short because it does not need solvent separately.

Abstract: A polyester/polycarbonate blend having superior transparency and heat resistance which is useful for producing transparent polyester articles is disclosed. The blend of polyester and polycarbonate includes (a) polyethyleneterephthalate (PET) prepared with terephthalic acid component and ethylene glycol component, or copolymerized polyethyleneterephthalate prepared with terephthalic acid component and ethylene glycol component, and further copolymerized with 1 to 10 mol % of isophthalic acid, cyclohexane dimethanol (CHDM), di-ethylene glycol and/or alkylene glycol of 3 to 6 carbon atoms component with respect to acid or diol components; (b) polycarbonate (PC); and (c) CHDM modified PET prepared with 20 to 80 mol % CHDM with respect to diol components, wherein the amount of the PC is 10 to 60 wt % with respect to the mixture of (a) PET and (b) PC, and the amount of the (c) CHDM modified PET is 0.2 to 2.5 times by weight with respect to the amount of (b) PC.