Abstract:
An electron beam pumped semiconductor laser screen and an associated fabrication method are described which provide a display screen that has a relatively long operating lifetime, is less expensive to produce, and operates at lower electron voltages and near room temperature conditions. The laser screen includes a multi quantum well active gain region having quantum wells of GaInP and barrier layers of (AlxGa1nullx)Inp, thereby permitting operation in the visible, red spectrum. Moreover, the first layer epitaxially grown on the sacrificial substrate is an etch stop layer of (GaxAl1nullx)yIn1nullyP that acts as an etch stop during the subsequent etching of the sacrificial substrate and may also be used to adjust the cavity length to the correct resonance condition. The laser screen also includes an output mirror having alternating layers of two different compositions of GaxAl1nullxAs that are epitaxially grown on the multi quantum well active gain region. The output mirror can also include a thin, final layer of GaAs to cap the structure and prevent degradation of the GaxAl1nullxAs layers. The semiconductor laser screen also includes a carrier that is affixed to the output mirror. Further, the laser screen includes a metallic mirror and, in one embodiment, a hybrid metallic-dielectric mirror on the etch stop layer opposite the output mirror. As such, a laser cavity is defined between the output mirror and the metallic mirror. The semiconductor laser screen may be integrated into an electron beam pumped semiconductor laser which forms the basis for a projection display. A fabrication method is also provided.
Abstract translation:描述了电子束泵浦半导体激光屏幕和相关联的制造方法,其提供具有相对长的工作寿命的显示屏,制造成本较低,并且在较低的电子电压和接近室温条件下操作。 激光屏幕包括具有GaInP的量子阱和(Al x Ga 1-x)Inp的势垒层的多量子阱活性增益区域,从而允许在可见红色光谱中操作。 此外,在牺牲衬底上外延生长的第一层是(GaxAl1-x)yIn1-yP的蚀刻停止层,其在牺牲衬底的随后蚀刻期间用作蚀刻停止层,并且还可以用于将腔长度调整为 正确的共振条件。 激光屏幕还包括输出镜,其具有在多量子阱活性增益区上外延生长的两种不同组成的GaxAl1-xAs的交替层。 输出反射镜还可以包括薄的最终的GaAs层,以覆盖该结构并防止GaxAl1-xAs层的劣化。 半导体激光屏幕还包括固定到输出镜的载体。 此外,激光屏幕包括金属镜,并且在一个实施例中,在与输出镜相对的蚀刻停止层上的复合金属 - 电介质镜。 因此,在输出镜和金属镜之间限定激光腔。 半导体激光屏可以集成到形成投影显示基础的电子束泵浦半导体激光器中。 还提供了制造方法。
Abstract:
A screen composite provided on a face plate of a flat panel display device, said screen composite containing an aluminum layer and a metal layer formed on said aluminum layer for substantially reducing a halation phenomenon.
Abstract:
A bulb for a color cathode ray tube comprising a face plate and a color selection member having a plurality of opening portions, said bulb satisfying the following expressions (1) and (2), wherein X is a nominal diagonal inchage of the bulb, P (unit: mm) is a pitch of the opening portions along an electron beam sweep direction in the central portion of the bulb, GH (unit: mm) is a distance between an inner surface of the face plate and the color selection member in the central portion of the bulb, and LT is a value obtained by dividing a size (unit: mm) of the opening portion along the electron beam sweep direction in the central portion of the bulb by the pitch P (unit: mm). 0.0117Xnull0.0457
Abstract:
The present invention provides a formed type flat panel made of tinted glass, which is capable of satisfying the UL standard for implosion resistance thereof. The formed type flat panel of the present invention includes a substantially rectangular faceplate having an substantially flat external surface and a curved inner surface; a skirt portion extending backward from a periphery of the faceplate; a corner portion joining the faceplate and the skirt portion. The faceplate has a specially tailored thickness distribution so at to accomplish aforementioned capability.
Abstract:
Disclosed are a phosphor pattern which comprises a substrate having unevenness and a phosphor layer formed on the inner surface of a concave portion of the substrate, wherein the phosphor pattern thickness ratio (x)/(y) satisfies a range of 0.1 to 1.5, where when the length from the bottom of the concave portion to the top of a convex portion is L (nullm), (x) is a thickness of the phosphor pattern formed on an uneven wall surface at a position of 0.9nullL from the bottom of the concave portion toward the top of the convex portion, and (y) is a thickness of the phosphor pattern formed on the uneven wall surface at a position of 0.4nullL from the bottom of the concave portion toward the top of the convex portion, and processes for preparing the same.
Abstract:
A display device having a surface treating film formed on the outer surface of a substrate of the display device, said surface treating film having a property of changing light transmittance or refractive index by light or UV rays, and/or containing a compound which can be deposited by irradiation with light, shows excellent antireflective antistatic properties and low surface resistance, and can be applied to flat cathode-ray tubes.
Abstract:
A transfer film capable of transferring thin films such as a conducting film, a heat absorption film onto a display apparatus panel, a method for fabricating thin films for a display apparatus panel using the transfer film, and a display apparatus having thin films fabricated by the method are provided. The transfer film is constructed by forming a conducting film layer and an adhesion layer on a base film. The transfer film is disposed on the display apparatus, and a heat pressure adhesive bonding process is performed to transfer the conducting film layer to the display apparatus. A high quality display apparatus is realized by fabricating a high quality conducting film using the transferring process.
Abstract:
This is a cathode ray tube having a panel provided with a colored layer on an outer surface of a face portion, wherein an emission luminance ratio is 75% or higher in a lowest part relative to a highest part, and a diffuse reflectance ratio is 90% or higher in a lowest part relative to a highest part in an image display area of the face portion. Due to this configuration, a cathode ray tube with a natural appearance can be obtained in which a luminance difference or a contrast difference is not perceived in the entire area of the face portion.
Abstract:
A cathode ray tube and a method of manufacturing the cathode ray tube, wherein a black matrix layer and at least one phosphor layer is formed on inner surface of panel portion, a filming liquid containing an acrylic emulsion having methyl methacrylate as a major component is applied on the at least one phosphor layer, the filming liquid is dried to make an organic film resin on the at least one phosphor layer, a metal is metal deposited on the organic film, and the portion is baked to remove the organic film.
Abstract:
A cathode ray tube comprises a panel of which outer surface is substantially flat and inner surface has a designated radius of curvature, a shadow mask coupled to the panel, the shadow mask having electron beam passing holes, and a reinforcing band mounted on the outer surface of the panel, wherein a diagonal size of an effective surface of the panel is in the range of 571-610 mm, and a thickness at a central portion of the panel is in the range of 9.5-12.4 mm.