Abstract: The present disclosure relates to a ferrocene-based compound having high selectivity for sulfide ion. The ferrocene-based compound is obtained by reacting a ferrocene starting material with one or more organic compound selected from a nitrile, a methyl ester and an ethyl ester, and a chemical sensor in solution state is prepared by mixing the compound with an organic solvent. The chemical sensor according to the present disclosure has high selectivity and sensitivity for sulfide ion even at low concentration and may be used as a chemical sensor for detecting hydrogen sulfide in solution state by allowing visual inspection of sulfide ion.

Abstract: The present disclosure relates to a ferrocene-based compound having high selectivity for sulfide ion. The ferrocene-based compound is obtained by reacting a ferrocene starting material with one or more organic compound selected from a nitrile, a methyl ester and an ethyl ester, and a chemical sensor in solution state is prepared by mixing the compound with an organic solvent. The chemical sensor according to the present disclosure has high selectivity and sensitivity for sulfide ion even at low concentration and may be used as a chemical sensor for detecting hydrogen sulfide in solution state by allowing visual inspection of sulfide ion.

Abstract: An organic electroluminescent display (EL) device including a transparent substrate, a first electrode unit formed on the transparent substrate in a predetermined pattern and made of a transparent conductive material, an organic EL unit including organic layers having a predetermined pattern, stacked on the first electrode unit, a second electrode unit corresponding to the first electrode unit, formed on the organic EL unit in a predetermined pattern, and an encapsulation layer to encapsulate the first electrode unit, the organic EL unit and the second electrode unit to protect the same, the encapsulation layer including a first component and a second component made of one or more metals selected from the group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminium (Al), silver (Ag) and platinum (Pt).

Abstract: A plate for a plasma display panel includes a plate member formed of a transparent material, a series of electrodes formed in a predetermined pattern on the plate member, and a dielectric layer formed on the plate member to cover the electrodes, wherein the electrodes are formed of a dielectric first component, and a metallic second component of at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt).

Abstract: A functional film includes a transition layer having a first constituent and a second constituent having gradual content gradients according to a thickness of the functional film. The first constituent is at least one dielectric material selected from the group consisting of SiOx (x>1), MgF2, CaF2, Al2O3, SnO2, In2O3 and ITO, and the second constituent is at least one material selected from the group consisting of iron (Fe), cobalt (Co), titanium (Ti), vanadium (V), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W) and tantalum (Ta).

Abstract: A functional film including a transition layer including a first constituent selected from aluminum and silicon and at least one second constituent selected from oxygen and nitrogen, the first and second constituents having gradual content gradients according to a thickness of the functional film.

Abstract: An organic electroluminescent display (EL) device including a transparent substrate, a first electrode unit formed on the transparent substrate in a predetermined pattern and made of a transparent conductive material, an organic EL unit including organic layers having a predetermined pattern, stacked on the first electrode unit, a second electrode unit corresponding to the first electrode unit, formed on the organic EL unit in a predetermined pattern, and an encapsulation layer to encapsulate the first electrode unit, the organic EL unit and the second electrode unit to protect the same, the encapsulation layer including a first component and a second component made of one or more metals selected from the group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminium (Al), silver (Ag) and platinum (Pt).

Abstract: A functional film includes a transition layer having a first constituent having SiO as a dielectric material and at least one second constituent selected from aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W) and tantalum (Ta). The first and second constituents have corresponding gradual content gradients according to a thickness of the functional film.

Abstract: A plate for a plasma display panel includes a plate member formed of a transparent material, a series of electrodes formed in a predetermined pattern on the plate member, and a dielectric layer formed on the plate member to cover the electrodes, wherein the electrodes are formed of a dielectric first component, and a metallic second component of at least one metal selected from a group consisting of iron (Fe), cobalt (Co), vanadium (V), titanium (Ti), aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W), tantalum (Ta), copper (Cu), and platinum (Pt).

Abstract: A functional film including a transition layer including a first constituent selected from aluminum and silicon and at least one second constituent selected from oxygen and nitrogen, the first and second constituents having gradual content gradients according to a thickness of the functional film.

Abstract: A functional film includes a transition layer having a first constituent having SiO as a dielectric material and at least one second constituent selected from aluminum (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W) and tantalum (Ta). The first and second constituents have corresponding gradual content gradients according to a thickness of the functional film.

Abstract: A functional film includes a transition layer having a first constituent and a second constituent having gradual content gradients according to a thickness of the functional film. The first constituent is at least one dielectric material selected from the group consisting of SiOx (x>1), MgF2, CaF2, Al2O3, SnO2, In2O3 and ITO, and the second constituent is at least one material selected from the group consisting of iron (Fe), cobalt (Co), titanium (Ti), vanadium (V), aluminium (Al), silver (Ag), silicon (Si), germanium (Ge), yttrium (Y), zinc (Zn), zirconium (Zr), tungsten (W) and tantalum (Ta).

Abstract: A photolithography method includes applying to a substrate a coating of a film forming composition containing a bonding resin and a film forming material and drying to form a film; selectively coating the film with a photosensitive composition including a photosensitizer to form a film pattern; exposing the film with the film pattern; and developing the film. Therefore, a film in a pattern and having excellent characteristics can be manufactured easily and efficiently. The photolithography method can be applied to any product which requires the formation of a film in a pattern.

Abstract: A black matrix, a preparation method thereof and a display device employing the black matrix. The black matrix which is a black coating layer surrounding pixels of the display device, includes SiO which is a dielectric material and at least one metal selected from the group consisting of iron (Fe), cobalt (Co), vanadium (V) and titanium (Ti). The black matrix has excellent thermal and chemical stability and is environmentally desirous by using a mixture of a nontoxic metal and a dielectric material. Also, the black matrix exhibits excellent adhesion to a substrate without an annealing process, is excellent in mechanical characteristic due to the absence of internal stress and is capable of being micro-patterned to have a particle size of 1 &mgr;m or less. When applied to the substrate of the display device, the black matrix exhibits excellent external light absorbing effect. Therefore, a display device having improved luminance and contrast characteristics can be attained.

Abstract: A black matrix, a preparation method thereof and a display device employing the black matrix. The black matrix which is a black coating layer surrounding pixels of the display device, includes SiO which is a dielectric material and at least one metal selected from the group consisting of iron (Fe), cobalt (Co), vanadium (V) and titanium (Ti). The black matrix has excellent thermal and chemical stability and is environmentally desirous by using a mixture of a nontoxic metal and a dielectric material. Also, the black matrix exhibits excellent adhesion to a substrate without an annealing process, is excellent in mechanical characteristic due to the absence of internal stress and is capable of being micro-patterned to have a particle size of 1 &mgr;m or less. When applied to the substrate of the display device, the black matrix exhibits excellent external light absorbing effect. Therefore, a display device having improved luminance and contrast characteristics can be attained.

Abstract: A method of manufacturing a phosphor screen for a flickerless cathode ray tube comprising the steps of forming red and green phosphor layers on a panel for a cathode ray tube on which a black matrix is formed, forming a blue phosphor layer on said panel on which a black matrix is formed by coating the blue phosphor slurry and drying and forming a double phosphor layer by coating an ultraviolet phosphor slurry on said blue phosphor layer and drying, is provided.

Abstract: An improved red, green or blue phosphor complex produced by adhering chromium compound on the red, green or blue phosphor using a polymer binder or an inorganic binder, or without a binder, has high brightness without changing the characteristics of the phosphor

Abstract: Disclosed is a ferroelectric liquid crystal display projector employing a fluorescent screen, including a light source emitting light of a predetermined wavelength; a first condensing lens for converting the light radiated from the light source into beams; a polarizing beam splitter for selecting a predetermined directional light in the incident light passing through the first condensing lens and for polarizing the light; a ferroelectric liquid crystal shutter on/off operated according to the polarizing operation of the polarizing beam splitter, the ferroelectric liquid crystal shutter comprising a reflecting layer attached on a backside and RAM devices attached on each pixel of a ferroelectric liquid crystal (FLC); an optical system for magnifying, at a predetermined ratio, the light reflected from the ferroelectric liquid crystal shutter; and a fluorescent screen of a fluorescent material which radiates by light, passing through the optical system, at a predetermined wavelength.

Abstract: A double layer phosphor screen comprising a panel having black matrix for a CRT and red, green and blue phosphors on the panel, wherein the phosphor is formed on which the black matrix is not formed and the blue phosphor is formed in double layers, and the CIE Y color coordinate of the blue phosphor for a first layer formed on the panel is 0.045 to 0.065, the CIE Y color coordinate of the blue phosphor for a second layer formed on the first layer is 0.075 to 0.095, improves brightness, color reproducing range and contrast.

Abstract: A mixed green-emitting phosphorus manufactured by mixing InBO.sub.3 :Tb and one selected from ZnS:Cu,Au,Al and ZnS:Cu,Al, optionally with Zn.sub.2 SiO.sub.4 :Mn. A cathode ray tube adopting the mixed green-emitting phosphor not only has good luminance and color purity, but also enhanced afterglow and luminosity characteristics.