Abstract: Disclosed are an optical film, a method for preparing the same, and a liquid crystal display including the same. The optical film is a single film of a non-liquid crystalline thermoplastic resin, and includes: first and second surface part placed on both surfaces of the film in a thickness direction; and an inner part of the film placed between the first and second surface part, wherein the first and second surface part are not aligned with a tilt in the thickness direction, and the inner part of the film is aligned with a tilt in the thickness direction.

Abstract: Disclosed are an optical film, a method for preparing the same, and a liquid crystal display including the same. The optical film is a single film of a non-liquid crystalline thermoplastic resin, and includes: first and second surface part placed on both surfaces of the film in a thickness direction; and an inner part of the film placed between the first and second surface part, wherein the first and second surface part are not aligned with a tilt in the thickness direction, and the inner part of the film is aligned with a tilt in the thickness direction.

Abstract: The present invention discloses a light diffuser film including a transparent thermoplastic resin, the light diffuser film having an embossed pattern on at least one side thereof, the embossed pattern having an average roughness (Ra) of about 1.5 ?m or less, and a peak count (Rpc) of about 100 peaks/cm or more.

Abstract: An electron emission device is disclosed. The electron emission device includes a resistance layer for electrically connecting a line electrode and isolate electrodes included in the cathode electrode. The cathode electrode can maintain a uniform voltage due to the resistance layer. A protection layer is located on the resistance layer. The protection layer prevents conductive elements contained in the resistance layer from diffusing over the protection layer. The protection layer also prevents the resistance layer from being oxidized.

Abstract: An electron emission device includes a substrate, first electrodes formed on the substrate, electron emission regions electrically connected to the first electrodes, and second electrodes placed over the first electrodes such that the second electrodes are insulated from the first electrodes. The second electrodes have openings to expose the electron emission regions. A third electrode is placed over the second electrodes such that the third electrode is insulated from the second electrodes. The third electrode has openings communicating with the openings of the second electrodes. Each of the electron emission regions and the second electrodes simultaneously satisfy the following conditions: D2/D1?0.579??(1), and D2?1 ???(2) where D1 indicates the width of each of the openings of the second electrode, and D2 indicates the width of each of the electron emission regions.

Abstract: An electron emission device is disclosed. The electron emission device includes a cathode electrode including a main electrode having an opening, ii) a plurality of isolated electrodes on each of which each of plurality of electron emission units is located, and iii) at least one resistance layer electrically connecting the main electrode and the plurality of isolated electrodes. The plurality of isolated electrodes are located within the opening and form gaps with the main electrode. A resistance between the main electrode and one of the plurality of isolated electrodes is different from that between the main electrode and the other isolated electrodes.

Abstract: An electron emission display includes an electron emission unit on a first substrate adapted to emit electron beams, a light emission unit on a second substrate, the light emission unit including a plurality of photoluminescent layers facing the electron and emission unit, a plurality of spacers between the first and second substrates along a first direction, wherein each photoluminescent layer of the plurality of photoluminescent layers satisfies a proviso that (a?b)/2>c, where “a” is a length of the photoluminescent layer in a second direction, “b” is a magnitude of an electron beam spot on the photoluminescent layer in the second direction, and “c” is a shifting distance of the electron beam spot in the second direction.

Abstract: A light emission device includes: first and second substrates facing each other and spaced apart from each other; an electron emission region on an inner surface of the first substrate; a driving electrode on the inner surface of the first substrate to control an electron emission of the electron emission region; a phosphor layer on an inner surface of the second substrate; and a heat generation member on the inner surface of the second substrate or an outer surface of the second substrate to increase a temperature of the second substrate.

Abstract: An electron emission device and an electron emission display having the electron emission device. The electron emission device includes a substrate, a cathode electrode disposed on the substrate, and an electron emission region electrically connected to the cathode electrode. The cathode electrode includes a sub-electrode disposed on the substrate, a sub-insulation layer disposed on the sub-electrode, a main electrode disposed on the sub-electrode and having an opening for exposing a portion of the sub-insulation layer at each of a plurality of unit pixels, a plurality of isolation electrodes disposed on the sub-insulation layer in the opening of the main electrode and spaced apart from the main electrode, and a resistive layer disposed between the main electrode and the isolation electrodes to electrically connect the main electrode to the isolation electrodes.

Abstract: An electron emission device includes a substrate, cathode and gate electrodes placed on the substrate in an insulated manner, and electron emission regions electrically connected to the cathode electrodes. Each of the cathode electrodes includes a line electrode having a groove at one lateral side surface thereof, and isolation electrodes formed on the substrate exposed through the groove such that the isolation electrodes are isolated from the line electrode. The electron emission regions are placed on the isolation electrodes and a resistance layer electrically connects the isolation electrodes to the line electrode.

Abstract: An electron emission device that includes a substrate, at least one electron emission region, and at least one cathode electrode disposed on the substrate and electrically connected to the electron emission region, wherein the cathode electrode has a first electrode, a plurality of second electrodes on the first electrode, a sub-insulation layer between the first and second electrodes, and a resistive layer electrically connected to the first and second electrodes.

Abstract: An electron emission device includes i) a substrate, ii) a cathode electrode on the substrate, having a first opening, and comprising an ultraviolet non-transmitting material, iii) an electron emission region in the first opening and for emitting electrons, and iv) a gate electrode electrically insulated from the cathode electrode and having a second opening through which the electrons emitted from the electron emission region pass. The ultraviolet transmittance of the gate electrode is about 30% or more. A distance between a first imaginary line passing through a center of the electron emission region and normal to a plane surface of the substrate, and a second imaginary line passing through a center of the second opening and normal to the plane surface of the substrate is about 0.5 ?m or less.

Abstract: An electron emission display includes a first substrate and a second substrate facing each other, a side member formed along the edges of the first substrate and the second substrate to form a vacuum envelope together with the first substrate and the second substrate, an electron emission unit provided on the first substrate, a light emission unit provided on the second substrate to emit visible light when impacted by electrons from the electron emission unit, and a thermal conduction member connecting the first substrate and the second substrate.

Abstract: An electron emission device includes a substrate, a cathode electrode located on the substrate and having a first opening, the cathode electrode including a material that substantially blocks ultraviolet rays, an electron emission region that is located in the first opening and adapted to emit electrons, a gate electrode that is electrically insulated from the cathode electrode, the gate electrode including a material that substantially blocks ultraviolet rays, and a plurality of insulation layers located between the cathode and gate electrodes. The plurality of insulation layers includes first and second insulation layers adjacent to each other. The first insulation layer has a first etching rate that is different from a second etching rate of the second insulation layer.

Abstract: An electron emission device and a display device having the electron emission device are provided. The electron emission device includes a plurality of driving electrodes located on a substrate and a plurality of electron emission regions electrically coupled to the driving electrodes. Each of the driving electrodes includes a first metal layer, a second metal layer, and a third metal layer. Here, the following condition is satisfied: T3/T1?1.0, where T1 is a thickness of the first metal layer and T3 is a thickness of the third metal layer.

Abstract: An electron emission display includes an electron emission unit on a first substrate adapted to emit electron beams, a light emission unit on a second substrate, the light emission unit including a plurality of photoluminescent layers facing the electron and emission unit, a plurality of spacers between the first and second substrates along a first direction, wherein each photoluminescent layer of the plurality of photoluminescent layers satisfies a proviso that (a?b)/2>c, where “a” is a length of the photoluminescent layer in a second direction, “b” is a magnitude of an electron beam spot on the photoluminescent layer in the second direction, and “c” is a shifting distance of the electron beam spot in the second direction.

Abstract: An electron emission device includes a substrate, cathode electrodes and gate electrodes formed on the substrate crossing one another to thereby form a plurality of crossed regions, and electron emission regions, each electrically coupled to one of the cathode electrodes. Each of the cathode electrodes includes a resistive layer formed with first openings, and a conductive layer disposed on one surface of the resistive layer, and formed with second openings. The second openings are spatially communicated respectively with the first openings, and circumferential wall portions of the conductive layer defining the second openings maintain a predetermined spacing from circumferential wall portions of the resistive layer defining the first openings. The electron emission regions are then disposed in the first openings.

Abstract: An electron emission device is disclosed. The electron emission device includes a cathode electrode including a main electrode having an opening, ii) a plurality of isolated electrodes on each of which each of plurality of electron emission units is located, and iii) at least one resistance layer electrically connecting the main electrode and the plurality of isolated electrodes. The plurality of isolated electrodes are located within the opening and form gaps with the main electrode. A resistance between the main electrode and one of the plurality of isolated electrodes is different from that between the main electrode and the other isolated electrodes.

Abstract: A light emission device includes: first and second substrates facing each other and spaced apart from each other; an electron emission region on an inner surface of the first substrate; a driving electrode on the inner surface of the first substrate to control an electron emission of the electron emission region; a phosphor layer on an inner surface of the second substrate; and a heat generation member on the inner surface of the second substrate or an outer surface of the second substrate to increase a temperature of the second substrate.

Abstract: An electron emission device and an electron emission display having the electron emission device. The electron emission device includes a substrate, a cathode electrode disposed on the substrate, and an electron emission region electrically connected to the cathode electrode. The cathode electrode includes a sub-electrode disposed on the substrate, a sub-insulation layer disposed on the sub-electrode, a main electrode disposed on the sub-electrode and having an opening for exposing a portion of the sub-insulation layer at each of a plurality of unit pixels, a plurality of isolation electrodes disposed on the sub-insulation layer in the opening of the main electrode and spaced apart from the main electrode, and a resistive layer disposed between the main electrode and the isolation electrodes to electrically connect the main electrode to the isolation electrodes.