摘要:
A liquid crystal display (LCD) panel includes a short-circuit ring formed of aluminum or an aluminum alloy during manufacture. The short-circuit ring is formed along a gate wiring line or a source wiring line. After the panel is inspected for defects, the short-circuit ring is removed. In the LCD manufacturing process, a glass substrate is cut outside the short-circuit ring made of aluminum, and thereafter the short-circuit ring is removed by grinding the short-circuit ring while spraying water having a low resistance on the substrate. The water may include carbon dioxide gas. Low resistance aluminum may be used as the gate wiring line and the short-circuit ring. This aluminum material, which is used as a current supply wiring line, can be subjected to an anodic oxidation process. Thus, it is not necessary to form a film of any metal other than aluminum. This can simplify or reduce the number of fabrication processes. Furthermore, because the aluminum is trimmed off by grinding, it is not clawed during cutting. In this manner, the aluminum short-circuit material is removed without causing short circuits between adjacent wiring lines and without slipping the tooth when scribing a scratch marking line by a scriber.
摘要:
A method of making thin film transistors such that the first conductive layer of a thin film transistor is formed with an aluminum system metal having a low electric resistance, and another metal capable of anodic oxidation is deposited to prevent the aluminum system metal from producing hillocks. The metal capable of anodic oxidation and part of the aluminum system metal are changed into an insulator by an anodic oxidation treatment. In all, the gate insulator of the thin film transistor comprises three layers of aluminum oxide, an oxide of the metal capable of anodic oxidation, and silicon nitride. The method makes it possible to form the lower-layer wiring and gate electrode having a low electric resistance and a flawless gate insulator having excellent insulative quality.
摘要:
A thin-film transistor array is suited for the manufacture of an image display utilizing liquid crystal. In the thin-film transistor array, a first electrically conductive layer made principally of aluminum is selectively formed on one surface of a substrate. The first electrically conductive layer contains, as an impurity, a high-melting point metal which can be anodized. An oxide layer is formed by an anodization process on the first electrically conductive layer, and the first insulating layer is formed on the oxide layer so as to overlay the substrate. Furthermore, a first semiconductor layer made principally of silicon is selectively formed on the insulating layer, and a pair of second semiconductor layers made principally of silicon containing phosphorus are formed on the first semiconductor layer. A pair of second electrically conductive layers are formed on the paired second semiconductor layers, respectively.
摘要:
A liquid crystal display panel includes a plurality of signal lines Yj (j=1-N: total signal line number N) and a plurality of scanning lines Xi (i=1-M) arranged in a matrix pattern of N.times.M, and thin film transistors for switching signal inputs between a display pixel electrode C (i, j) and signal wiring Yj, disposed to correspond to respective intersections of the signal lines and the scanning lines, and auxiliary capacitance Cadd formed in an electrically parallel relationship with the display pixel electrode C (i, j) composed of liquid crystal. The auxiliary capacitance Cadd is formed between the scanning line Xi-1 controlling the display pixel electrode C(i-1, j) at a previous stage of the display pixel electrode C (i, j) and display pixel electrode C (i, j), and disposed n such a positional relationship that the display pixel electrode C (i, j) completely covers the scanning line Xi-1 at the previous stage in a direction of its line width in terms of a cross sectional construction. By the above arrangement, variations of the display pixel signal due to a leaking electric field from the gate line may be reduced.
摘要:
A discharge lamp includes a luminous bulb in which a luminous material is enclosed and a pair of electrodes are opposed to each other in the luminous bulb; and a pair of sealing portions for sealing a pair of metal foils electrically connected to the pair of electrodes, respectively. The pair of metal foils have a pair of external leads on the side opposite to the side electrically connected to the pair of electrodes, respectively. At least one of the pair of external leads is joined to a lead wire for external connection that is to be electrically connected to an external circuit by the plastic flow of a caulking member.
摘要:
A fill material 201 enclosed in an arc tube 201 with an inner diameter of 10.8 mm includes ScI3, argon, and mercury. A distance between electrodes 202 is set at 2.2 mm, and a distance between the inner wall of the arc tube 201 and the electrodes 202 is set at approximately 5.4 mm, which is approximately twice the distance between the electrodes 202. The lamp of the present invention is capable of forming thin arc and thereby achieving high luminance since only the metallic elements having an ionization potential of 6 eV or higher is contained in the fill material 207. The restriction of the short distance between the electrodes serves to stabilize arc. Scandium in the fill material serves to achieve a good color reproduction characteristic.
摘要:
In a conventional electrodeless discharge lamp, a large amount of magnetic field leaks from at light-transparent envelope, and the efficiency of conversion from electric power to light energy is low. In a electrodeless discharge lamp in which light-emitting gases in a light-transparent envelope are excited with a magnetic field generated from a coil, end portions of a magnetic material included in the coil are substantially axially disposed in the light-transparent envelope. As a result, the magnetic flux which leaks outside the light-transparent envelope is decreased so the density of the magnetic flux in the envelope is increased and the efficiency of the lamp is improved.
摘要:
A method and apparatus for operating a high pressure discharge lamp is disclosed. Oscillation in the discharge arc periphery, a problem that occurs with high frequency operation, is eliminated. A high pressure discharge lamp is operated by applying thereto a dc or rectangular wave current to which is superposed an ac component shaped by a high frequency ripple signal that has been amplitude modulated by a modulation signal for inducing instantaneous fluctuations in the power supply input to both ends of the arc gap. The ripple level is thereby temporally varied, and stable operating is possible even exceeding the ripple level at which oscillation in the arc periphery begins.
摘要:
A method for manufacturing a high-pressure discharge lamp of the double-ended type having excellent resistance to high-pressure and wherein the internal diameter of a portion of the high-pressure discharge lamp where a light-emitting section and a side tube are adjacent can be reduced without restricting the maximum diameter of an electrode on a side where it projects into the light-emitting section. An electrode assembly 105 is arranged within an evacuated glass bulb 2 such that an end of electrode 102 where a coil 102b is wound is positioned within the light-emitting section 3. In this condition, the portion where the light-emitting section 3 and the side tube 4a (4b) are adjacent is heated by a burner 300. The internal diameter of the side tube 4a (4b) can thereby be formed with a reduced-diameter section 7, whose diameter is smaller than that of the electrode rod 102a without restricting the diameter at the location of the coil 102b.
摘要:
In a metal halide lamp which includes a discharge tube (2) retaining a fill of mercury and at least one metal halide added as a luminous material, an energy density of the arc discharge portion (3) represented by a product E.times.j is in the range of 70.0.ltoreq.E.times.j.ltoreq.150.0 (VA/mm.sup.3) where E=V/d, j=I/S, assuming that I is a lamp current in amperes with a lamp voltage of V volts applied between the paired discharge electrodes in a stable lighting condition of the lamp and that each of the electrodes has a tip face (1a, 1a') of which a cut area in section is S mm.sup.2 and the gap distance is d in millimeters, and thus a high luminous flux retention rate and high luminance of an arc discharge portion can be accomplished with a longer life of the lamp, suppressing a lamp voltage varying rate, and avoiding a change in color temperature, which remarkably improves additional merits when in utilization as a light source in various display apparatuses such as optical projection systems.
摘要翻译:在包括保持汞填充物的放电管(2)和作为发光材料添加的至少一种金属卤化物的金属卤化物灯中,由产物Exj表示的电弧放电部(3)的能量密度在 的70.0 = Exj 150.0(VA / mm3)其中E = V / d,j = I / S,假设I是在成对放电电极之间施加V伏特灯电压的灯电流, 在灯的稳定照明条件下,每个电极具有切割面积为S mm2且间隙距离d为毫米的尖端面(1a,1a'),因此高光束保持力 可以在灯的寿命更长,抑制灯电压变化率以及避免色温变化的情况下实现电弧放电部分的高亮度和高亮度,这在各种显示器中用作光源时显着提高附加优点 诸如光学投影系统的装置。