Abstract: The present invention discloses a keyboard comprising light emitting devices, each respectively disposed below a key to lighten the top surface of the key; and a micro controller unit transmitting signals generated by each key to the computer, having switches for controlling the light emitting devices, and controlling switches according to signals transmitted from the computer, and a method of selecting the colors of the keys of the same.

Abstract: An LED display apparatus according to one exemplary embodiment is disclosed. The LED display apparatus may include: a first LED substrate in which a plurality of LED elements capable of emitting a first-wavelength light are arranged in rows and columns; a second LED substrate in which a plurality of LED elements capable of emitting a second-wavelength light are arranged, the second LED substrate being provided on the first LED substrate and having a first light transmitting portion formed by punching a partial region of the second LED substrate; and a third LED substrate which is provided on the second LED substrate and in which a plurality of LED elements capable of emitting a third-wavelength light are arranged, the third LED substrate being provided on the second LED substrate and having a second light transmitting portion formed by punching a partial region of the third LED substrate.

Abstract: The present invention discloses a keyboard comprising light emitting devices, each respectively disposed below a key to lighten the top surface of the key; and a micro controller unit transmitting signals generated by each key to the computer, having switches for controlling the light emitting devices, and controlling switches according to signals transmitted from the computer, and a method of selecting the colors of the keys of the same.

Abstract: The present invention discloses a keyboard comprising light emitting devices, each respectively disposed below a key to lighten the top surface of the key; and a micro controller unit transmitting signals generated by each key to the computer, having switches for controlling the light emitting devices, and controlling switches according to signals transmitted from the computer, and a method of selecting the colors of the keys of the same.

Abstract: Disclosed is a method for manufacturing a chip scale package (CSP) for a light-emitting diode (LED). The method may include a light-emitting device mounting step for mounting a plurality of light-emitting devices on a substrate strip, a phosphor forming step for forming a phosphor on the plurality of light-emitting devices, a reflective member forming step for forming a reflective member on the substrate strip to surround the phosphor, and a package singulation step for singulating unit packages by cutting the substrate strip and the reflective member.

Abstract: An LED display device according to one embodiment of the present invention is disclosed.

Abstract: A light-emitting-device package according to one aspect of the present invention includes: a metal substrate; a light emitting device disposed on a first surface of the metal substrate and configured to emit at least ultraviolet light; a pair of electrodes disposed to be spaced apart from each other on at least the first surface of the metal substrate, and electrically connected to the light emitting device; and an insulating layer provided between the metal substrate and the pair of electrodes. UV reflectance of the first surface of the metal body is higher than UV reflectance of the pair of electrodes.

Abstract: A semiconductor light emitting diode is disclosed. The semiconductor light emitting diode includes a first conductive semiconductor layer, a second conductive semiconductor layer, an active layer disposed between the first conductive semiconductor layer and the second conductive semiconductor layer, a transparent electrode formed on the second conductive semiconductor layer, a non-conductive reflection film covering the circumferential surface of the transparent electrode and having one or more via-holes formed therein, a reflective electrode formed on the non-conductive reflection film, interconnection electrodes filled in the via-holes and electrically connecting the reflective electrode to the transparent electrode, and ohmic contact layers formed between the transparent electrode and the interconnection electrodes and filled in recesses formed at positions of the transparent electrode corresponding to the via-holes by etching or extending through the via-holes from the recesses.

Abstract: A light-emitting-device package according to one aspect of the present invention includes: a metal substrate; a light emitting device disposed on a first surface of the metal substrate and configured to emit at least ultraviolet light; a pair of electrodes disposed to be spaced apart from each other on at least the first surface of the metal substrate, and electrically connected to the light emitting device; and an insulating layer provided between the metal substrate and the pair of electrodes. UV reflectance of the first surface of the metal body is higher than UV reflectance of the pair of electrodes.

Abstract: Provided an LED display apparatus including: an LED substrate in which a plurality of LED elements emitting first-wavelength light are arranged in rows and columns; a first wavelength conversion sheet provided on the LED substrate and converting the first-wavelength light into second-wavelength light; and a second wavelength conversion sheet provided on the first wavelength conversion sheet and converting the first-wavelength light or the second-wavelength light into third-wavelength light.

Abstract: A light-emitting-device package according to one aspect of the present invention includes: a metal substrate; a light emitting device disposed on a first surface of the metal substrate and configured to emit at least ultraviolet light; a pair of electrodes disposed to be spaced apart from each other on at least the first surface of the metal substrate, and electrically connected to the light emitting device; and an insulating layer provided between the metal substrate and the pair of electrodes. UV reflectance of the first surface of the metal body is higher than UV reflectance of the pair of electrodes.

Abstract: A semiconductor light emitting diode is disclosed. The semiconductor light emitting diode includes a first conductive semiconductor layer, a second conductive semiconductor layer, an active layer disposed between the first conductive semiconductor layer and the second conductive semiconductor layer, a transparent electrode formed on the second conductive semiconductor layer, a non-conductive reflection film covering the circumferential surface of the transparent electrode and having one or more via-holes formed therein, a reflective electrode formed on the non-conductive reflection film, interconnection electrodes filled in the via-holes and electrically connecting the reflective electrode to the transparent electrode, and ohmic contact layers formed between the transparent electrode and the interconnection electrodes and filled in recesses formed at positions of the transparent electrode corresponding to the via-holes by etching or extending through the via-holes from the recesses.

Abstract: Provided an LED display apparatus including: an LED substrate in which a plurality of LED elements emitting first-wavelength light are arranged in rows and columns; a first wavelength conversion sheet provided on the LED substrate and converting the first-wavelength light into second-wavelength light; and a second wavelength conversion sheet provided on the first wavelength conversion sheet and converting the first-wavelength light or the second-wavelength light into third-wavelength light.

Abstract: A light-emitting-device package according to one aspect of the present invention includes: a metal substrate; a light emitting device disposed on a first surface of the metal substrate and configured to emit at least ultraviolet light; a pair of electrodes disposed to be spaced apart from each other on at least the first surface of the metal substrate, and electrically connected to the light emitting device; and an insulating layer provided between the metal substrate and the pair of electrodes. UV reflectance of the first surface of the metal body is higher than UV reflectance of the pair of electrodes.

Abstract: The present invention discloses a keyboard comprising light emitting devices, each respectively disposed below a key to lighten the top surface of the key; and a micro controller unit transmitting signals generated by each key to the computer, having switches for controlling the light emitting devices, and controlling switches according to signals transmitted from the computer, and a method of selecting the colors of the keys of the same.

Abstract: Disclosed is a method for manufacturing a chip scale package (CSP) for a light-emitting diode (LED). The method may include a light-emitting device mounting step for mounting a plurality of light-emitting devices on a substrate strip, a phosphor forming step for forming a phosphor on the plurality of light-emitting devices, a reflective member forming step for forming a reflective member on the substrate strip to surround the phosphor, and a package singulation step for singulating unit packages by cutting the substrate strip and the reflective member.

Abstract: A method for manufacturing a chip scale package (CSP) for a light-emitting diode (LED). The method may include a light-emitting device mounting step for mounting a plurality of light-emitting devices on a substrate strip, a phosphor forming step for forming a phosphor on the plurality of light-emitting devices, a reflective member forming step for forming a reflective member on the substrate strip to surround the phosphor, and a package singulation step for singulating unit packages by cutting the substrate strip and the reflective member.

Abstract: The present invention discloses a keyboard comprising light emitting devices, each respectively disposed below a key to lighten the top surface of the key; and a micro controller unit transmitting signals generated by each key to the computer, having switches for controlling the light emitting devices, and controlling switches according to signals transmitted from the computer, and a method of selecting the colors of the keys of the same.

Abstract: The present invention discloses a III-nitride compound semiconductor light emitting device including an active layer for generating light by recombination of an electron and a hole between an n-type nitride compound semiconductor layer and a p-type nitride compound semiconductor layer. The active layer is disposed over the n-type nitride compound semiconductor layer. The III-nitride compound semiconductor light emitting device includes a masking film made of MgN and grown on the p-type nitride compound semiconductor layer, and at least one nitride compound semiconductor layer grown after the growth of the masking film made of MgN.

Abstract: The present invention discloses a III-nitride compound semiconductor light emitting device having an n-type nitride compound semiconductor layer, an active layer grown on the n-type nitride compound semiconductor layer, for generating light by recombination of electron and hole, and a p-type nitride compound semiconductor layer grown on the active layer. The III-nitride compound semiconductor light emitting device includes a plurality of semiconductor layers including a nitride compound semiconductor layer with a pinhole structure grown on the p-type nitride compound semiconductor layer.