Abstract: A keypad backlighting apparatus includes an electroluminescence layer for lighting an input device of an electronic apparatus. The input device may be a keypad and the electronic apparatus may be a mobile communications terminal. The terminal includes an upper case having a plurality of button holes formed in a predetermined pattern, electroluminescence (EL) keypad on a lower surface of the upper case and having buttons exposed through the button holes. A printed circuit board (PCB) installed adjacent the EL keypad includes a backlight driving circuit for supplying power to the EL keypad. A lower case of the terminal is coupled to the upper case and supports the EL keypad and the PCB.

Abstract: A keypad backlighting apparatus includes an electroluminescence layer for lighting an input device of an electronic apparatus. The input device may be a keypad and the electronic apparatus may be a mobile communications terminal. The terminal includes an upper case having a plurality of button holes formed in a predetermined pattern, electroluminescence (EL) keypad on a lower surface of the upper case and having buttons exposed through the button holes. A printed circuit board (PCB) installed adjacent the EL keypad includes a backlight driving circuit for supplying power to the EL keypad. A lower case of the terminal is coupled to the upper case and supports the EL keypad and the PCB.

Abstract: The present invention relates to a poly(2-vinylpyridine)-b-poly(n-hexylisocyanate) amphiphilic coil-rod block copolymer and a polymerization method thereof, more particularly to a poly(2-vinylpyridine)-b-poly(n-hexylisocyanate) amphiphilic coil-rod block copolymer polymerized by a process comprising synthesizing poly(2-vinylpyridine) having a narrow molecular weight distribution by living polymerization using potassium diphenylmethane (K-DPM) as initiator, adding sodium tetraphenylborate (NaBPh4) to replace the counter cation with a sodium ion (Na+) and adding n-hexylisocyanate and performing polymerization and a polymerization method thereof. According to the present invention, it is possible to control the molecular weight and the structure of each block of the copolymer. Therefore, coil-rod type amphiphilic block copolymers having a variety of structures can be obtained. The resultant block copolymer is a useful optical polymer material.

Abstract: Disclosed herein are a super formable high strength thin steel sheet suitable for use in various applications, e.g., automobiles, and a method for manufacturing the thin steel sheet. The thin steel sheet has a composition which comprises 0.010 wt % or less of C, 0.02 wt % or less of Si, 1.5 wt % or less of Mn, 0.030.15 wt % or less of P, 0.02 wt % or less of S, 0.030.40 wt % of Sol. Al, 0.004 wt % or less of N, 0.0050.040 wt % of Ti, 0.0020.020 wt % of Nb, one or both of 0.0001 0.02 wt % of B and 0.0050.02 wt % of Mo, and the balance of Fe and inevitable impurities, wherein the components P. Mn, Ti, Nb and B satisfy the relationship represented by the following Formulae 1-1 and 1-2, depending on a desired tensile strength: [Formula 1-1]—tensile strength: 35 kg and 40 kg grades 29.1+89.4P(%)+3.9Mn(%)−133.8Ti(%)+157.SNb(%)+0.18[B(ppm) or Mo(%)]15=3544.9 [Formula 1-2]—tensile strength: 45 kg grade 29.1+98.3P(%)+4.

Abstract: A keypad backlighting apparatus includes an electroluminescence layer for lighting an input device of an electronic apparatus. The input device may be a keypad and the electronic apparatus may be a mobile communications terminal. The terminal includes an upper case having a plurality of button holes formed in a predetermined pattern, electroluminescence (EL) keypad on a lower surface of the upper case and having buttons exposed through the button holes. A printed circuit board (PCB) installed adjacent the EL keypad includes a backlight driving circuit for supplying power to the EL keypad. A lower case of the terminal is coupled to the upper case and supports the EL keypad and the PCB.

Abstract: A method for interactively diagnosing and controlling a state of a remote facsimile device which communicates with a center facsimile device of an after-service center by using non-standard format by writing or reading data into or from memory includes the steps of: requesting entry of a telephone number of the remote facsimile device after determining a remote control mode exists when a function key is pressed; checking whether a memory reading or writing mode is selected and determining whether a remote diagnosis process, a name registration process, a telephone number registration process and an option reading process are selected. When the above processes are selected respectively, each process is performed and results are printed. If, however, the option reading process was not selected, the method proceeds to a memory reading process for repeatedly performing the foregoing steps.