Abstract: A display device including a panel having a display area and first, second, third and fourth non-display areas formed at an outer portion of the display area, said first non-display area facing the second non-display area, and the third non-display area facing the fourth non-display area; a data driver disposed in the first non-display area, and configured to drive a plurality of data lines provided in a first direction in the display area; a gate driver disposed in the second non-display area and configured to drive a plurality of gate lines provided in a second direction vertical to the first direction in the display area; a timing controller configured to drive the data driver and the gate driver; and a plurality of link lines in the display area and extending from the gate driver and provided in parallel to the data lines respectively connected to the gate lines.

Abstract: A data driving apparatus for a liquid crystal display device includes an output buffer for buffering and outputting a data voltage input from a digital-analog converter, wherein the output buffer includes an input amplifier for amplifying and outputting current proportional to the data voltage, an outputter for supplying a data voltage corresponding to the input data voltage to an output channel using charging and discharging current proportional to output current from the input amplifier, a control switch unit connected between the input amplifier and the outputter, for driving the outputter in a switching mode to precharge the output channel in a precharge period prior to a data supplying period in which the outputter outputs the data voltage, and a mode controller for controlling the control switch unit in response to an input control signal.

Abstract: A data driving apparatus for a liquid crystal display device includes an output buffer for buffering and outputting a data voltage input from a digital-analog converter, wherein the output buffer includes an input amplifier for amplifying and outputting current proportional to the data voltage, an outputter for supplying a data voltage corresponding to the input data voltage to an output channel using charging and discharging current proportional to output current from the input amplifier, a control switch unit connected between the input amplifier and the outputter, for driving the outputter in a switching mode to precharge the output channel in a precharge period prior to a data supplying period in which the outputter outputs the data voltage, and a mode controller for controlling the control switch unit in response to an input control signal.

Abstract: A display device including a panel having a display area and first, second, third and fourth non-display areas formed at an outer portion of the display area, said first non-display area facing the second non-display area, and the third non-display area facing the fourth non-display area; a data driver disposed in the first non-display area, and configured to drive a plurality of data lines provided in a first direction in the display area; a gate driver disposed in the second non-display area and configured to drive a plurality of gate lines provided in a second direction vertical to the first direction in the display area; a timing controller configured to drive the data driver and the gate driver; and a plurality of link lines in the display area and extending from the gate driver and provided in parallel to the data lines respectively connected to the gate lines.

Abstract: A cathode ray tube with a panel includes an inside surface having a designated curvature; a central portion having a transmission rate of 45–75%; and an outside surface being substantially flat with a flatness ratio (F) satisfying a mathematical formula of F = Ro Sd × 1.767 , where Ro denotes a diagonal curvature radius of the outside surface, Sd denotes a diagonal length of an effective surface of the panel, and the flatness ratio (F) of the outside surface is greater than 17. The dimensions of the panel are such that the thickness at the central portion of the panel (CFT), the thickness of a vertical axis end (Tv), and the thickness of a diagonal end (Td) satisfy conditions of 1.4<Td/CFT<2.2, and 0.85<Tv/Td<1.0.

Abstract: A frame for supporting a tension-type shadow mask of a color CRT, which can increase the contact force of a damper wire at the peripheral portion of the shadow mask thus to improve the howling phenomenon is disclosed. The frame comprises a pair of first frames, each having a portion for supporting a shadow mask, respectively; and a pair of second frames combined with the first frames for applying elastic force to the shadow mask, wherein each of the portions for supporting in the first frames has inflection points where the curvature of the portions for supporting is increased at peripheral portions thereof after the first frames are compressed, for supporting the shadow mask and increasing a friction force for a damper wire at the periphery of the shadow mask.

Abstract: A cathode ray tube with a panel includes an inside surface having a designated curvature; a central portion having a transmission rate of 45-75%; and an outside surface being substantially flat with a flatness ratio (F) satisfying a mathematical formula of 1 F = Ro Sd × 1.

Abstract: Disclosed is a flat type color cathode ray tube of high quality, which is capable of maintaining a brightness and brightness uniformity of an image while improving contrast, thereby ensuring flatness and visual distinction of the image. The flat type color cathode ray tube comprises a panel having an outer surface which is substantially flat and an inner surface which takes a predetermined curvature. The panel possesses at a center part thereof a transmittance of 45%˜75%, and the inner surface of the panel possesses an on-diagonal-axis curvature RD which satisfies a correlation, 3.5R≦RD≦8.0R where R is a product of 1.767 and a diagonal length of an effective surface along a diagonal axis.

Abstract: Shadow mask in a color cathode ray tube, which provides an appropriate picture quality for a set resolution and has an increased overall strength by a bi-curvatured structure with a reinforced center portion, including a curvature structure formed according to a curvature function g1(x, y), the curvature function g1(x, y) including a peripheral curvature function f1(x, y) of the shadow mask having a predetermined curvature and a central curvature function f2(x, y) having an almost flat curvature, both the predetermined curvature and the almost flat curvature being formed according to an inside surface curvature of a panel, and a curvature function f3(x, y) having a curvature which is stable in view of structure.

Abstract: Shadow mask in a cathode ray tube including an effective surface, and a non-effective surface, wherein the effective surface includes elongated slots each extended in full length of the effective surface without bridges between slots in a vertical direction at left and right outermost sides of the shadow mask or outer side slots adjacent to the outermost side slots, thereby preventing wrinkles from being formed at sides of an effective surface to enhance a color purity of the picture.

Abstract: A structure for preventing howling of a shadow mask in a cathode ray tube. The tube includes a panel having a fluorescent material screen on an inside surface, a shadow mask for selecting a color of electron beams emitted from an electron gun, and frames each fastened to a long side of the shadow mask to support the shadow mask on the panel through connecting members for applying a tension to the shadow mask in a vertical direction. The shadow mask includes an effective surface having holes for selecting the color of the electron beams, non-effective surfaces which form no screen, and howling prevention members bent along short side edges of the non-effective surfaces in a horizontal front-to-back direction. This provides a high quality picture because howling is improved even at edge portions of the shadow mask owing to the enhanced moment of inertia and higher natural frequency of the edge portions of the shadow mask.

Abstract: Disclosed is a flat type color cathode ray tube of high quality, which is capable of maintaining a brightness and brightness uniformity of an image while improving contrast, thereby ensuring flatness and visual distinction of the image. The flat type color cathode ray tube comprises a panel having an outer surface which is substantially flat and an inner surface which takes a predetermined curvature. The panel possesses at a center part thereof a transmittance of 45%˜75%, and the inner surface of the panel possesses an on-diagonal-axis curvature RD which satisfies a correlation, 3.5R≦RD≦8.0R where R is a product of 1.767 and a diagonal length of an effective surface along a diagonal axis.

Abstract: A tension-type shadow mask supporting frame for a color CRT is comprises a pair of main frames having a supporting part for supporting a shadow mask, respectively; and a pair of sub frames combined with the main frames for applying elastic force to the shadow mask; wherein the curvature structure of each one of the supporting parts in the main frames after the elastic force is removed satisfies the equation &Dgr;R/R=0.95˜1.05, where R is a radius of curvature obtained by connecting a center of and both ends each one of the supporting parts in the main frames, and &Dgr;R is a radius of curvature obtained by connecting three arbitrary positions each one of the supporting parts in the main frames.

Abstract: Shadow mask in a cathode ray tube including an effective surface, and a non-effective surface, wherein the effective surface includes elongated slots each extended in full length of the effective surface without bridges between slots in a vertical direction at left and right outermost sides of the shadow mask or outer side slots adjacent to the outermost side slots, thereby preventing wrinkles from being formed at sides of an effective surface to enhance a color purity of the picture.