Abstract:
A top emission type organic light emitting display includes an organic light emitting diode in which an anode, a light emitting layer and a transparent cathode are successively deposited. The cathode has a sandwiched structure in which a transparent oxide layer is inserted between the metal layers. Exemplary embodiments of the cathode of the present invention have better electric conductivity than a conventional cathode of an organic light emitting diode device, and thus has lower power consumption than a conventional top emission organic light emitting display with similar light transmission.
Abstract:
An organic light emitting display and a manufacturing method thereof include an improved encapsulation layer. The encapsulation layer of the organic light emitting display includes an organic layer uniformly covering bank portions and light emitting areas on a substrate; and an inorganic layer formed thicker on the light emitting areas than on the bank portions. In the organic light emitting display, the inorganic layer is thick on the light emitting area in which a sealing ability is required and the bank portion is thin in order to provide flexibility. Therefore, the encapsulation layer can be formed more easily compared to an encapsulation layer on a device in which the organic layer and inorganic layer are alternately formed at least 10 times.
Abstract:
An organic light emitting display including an ultraviolet protecting layer and a method of manufacturing the same include a lower substrate; an ultraviolet hardening adhesive formed on the lower substrate; a driving unit and a light emitting unit deposited on the lower substrate and surrounded by the ultraviolet hardening adhesive; an encapsulation layer covering the driving unit and light emitting unit and preventing moisture and oxygen penetration from an outside; an upper substrate arranged on the encapsulation layer facing the lower substrate and fixed by the ultraviolet hardening adhesive; and an ultraviolet ray blocking film formed in a region to block the driving unit and the light emitting unit from being irradiated by UV rays radiated to harden the ultraviolet hardening adhesive. The ultraviolet ray blocking film is disposed in the encapsulation layer or on the upper substrate to protect the driving unit and light emitting unit from ultraviolet rays.
Abstract:
An inline electron gun includes three inline cathodes arranged in a same plane, a prefocus lens and a main focus lens which includes a plurality of electrodes for converging or diverging a thermion emitted by the cathodes to form electron beams. Focus lenses include a rim or a lip at opposite ends to form a large aperture. The main focus lens may include a focus electrode, an anode electrode and a subsidiary electrode arranged between the focus electrode and the anode electrode to define a beam course of respective red, green and blue electron beams. The focus electrode has symmetrical rectangular slots in its wall to define a green aperture of the subsidiary electrode, whereby the slots decrease influence of the electric field to the electron beam passing through the green aperture so that the red, green and blue spots on the screen have a uniform vertical diameter.
Abstract:
A flat panel display device including a display area where an image is displayed and a non-display area located at an outside of the display area includes bank portions arranged in a pattern in the display area and partitioning a plurality of openings, emission elements located in the openings, dummy bank portions formed in the non-display area and integrated therewith, and a sealing passivation layer having a multi-layered structure of organic films and inorganic films alternately arranged, one organic film being located at an interface directly contacting the emission element and one inorganic film located firstly on an outermost portion of the dummy bank portions when the sealing passivation layer extends from the display area to the non-display area.
Abstract:
A voltage transfer method and apparatus using an organic thin film transistor (“TFT”) and an organic light emitting diode (OLED) display device including the same to increase response speed of the organic TFT. The voltage transmission method includes turning on the organic TFT, applying a first voltage having a plurality of different levels to one side of the organic TFT while the organic thin film transistor is turned on, and outputting a second voltage from the other side of the organic TFT.
Abstract:
A field emission type backlight device can include upper and lower substrates facing each other with a gap between them, an anode electrode on a lower side of the upper substrate, a fluorescent layer on a lower side of the anode electrode, a lower gate electrode on an upper side of the lower substrate, an insulating layer on an upper side of the lower gate electrode, a cathode electrode on an upper side of the insulating layer, and a gate electrode that is provided on an upper side of the insulating layer and electrically connected to the lower gate electrode.
Abstract:
An electron gun for a color cathode ray tube for realizing a high-quality image includes a triode having a cathode, a control electrode, and a screen electrode, and a main lens system having first to fourth focusing electrodes and an anode. The first focusing electrode and the fourth focusing electrode are electrically connected to each other, and the second focusing electrode and the third focusing electrode are electrically connected to the control electrode and the screen electrode, respectively. By forming a multistep auxiliary lens, the influence of spherical aberration and astigmatism on the electron beams are decreased and, in turn, a high-quality image can be realized.
Abstract:
An electron gun heater supporting structure includes a pair of supporting pieces respectively mounted on separate opposed glass beads of an electron gun and U-shaped connecting pieces disposed between the pair of supporting pieces for welding terminals of a heater thereto, the connecting pieces including position determining elements for determining the positions of the connecting pieces relative to the supporting pieces for welding them together. According to the present invention, the welding positions can be exactly determined and the uniformity of heater positions can be realized.
Abstract:
A flat panel display device includes a display area in which a desired image is displayed, and a non-display area arranged outside the display area and bordering the display area, and further includes bank portions arranged in a pattern in the display area and partitioning a plurality of first openings, emission elements arranged at the first openings, dummy bank portions formed in the non-display area in substantially a same pattern as the bank portions and partitioning a plurality of second openings, an absorbing material layer for removing oxygen/moisture located at the second openings, and a sealing passivation layer isolating the emission elements from the outside air and including a structure having at least two layers comprising an organic film and an inorganic film deposited alternately. Thus, the emission elements are prevented from being oxidized or corroded by a harmful material, and in a manner that minimizes additional processes.