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公开(公告)号：US4695772A
公开(公告)日：1987-09-22
申请号：US752266
申请日：1985-07-03
CPC分类号： H04L49/254 , H04N3/28 , H04L49/40
摘要： There is described a picture quality control system for use with a multi-beam cathode ray tube raster scan display device. The display device generates an image comprising a multiplicity of parallel, nonoverlaping bands of pixels, each band of pixels comprising a set of parallel lines of pixels.The control system includes a linearity correction circuit and a dynamic detwist correction circuit. The linearity correction circuit adjusts the distance between neighboring bands of pixels. The dynamic detwist correction circuit adjusts the relative positions of the electron beams generated by the cathode ray tube.The control system further includes a dynamic astigmatism correction circuit and a dynamic focus correction circuit for correcting astigmatism and focus imperfections in the image generated by said cathode ray tube. A dynamic size correction circuit adjusts the size of the pixels generated by the electron beams.The display is organized as an array of tiles. Each dynamic correction circuit in the control system includes a digital memory for storing a corresponding correction value for each said tile. Each correction value specifies the magnitude of the electromagnetic field to be generated by the corresponding coil or field generator when the cathode ray tube's electron beams are being deflected into the corresponding tile.
摘要翻译： 描述了与多光束阴极射线管光栅扫描显示装置一起使用的图像质量控制系统。 显示装置产生包括多个平行，非重叠的像素带的图像，每个像素带包括一组平行的像素线。 控制系统包括线性校正电路和动态校正电路。 线性校正电路调整相邻像素带之间的距离。 动态二维校正电路调节由阴极射线管产生的电子束的相对位置。 控制系统还包括动态像散校正电路和用于校正由所述阴极射线管产生的图像中的散光和聚焦缺陷的动态聚焦校正电路。 动态尺寸校正电路调节由电子束产生的像素的尺寸。 显示器以瓦片阵列的形式组织。 控制系统中的每个动态校正电路包括用于存储每个所述瓦片的相应校正值的数字存储器。 每个校正值指定当阴极射线管的电子束被偏转到相应的瓷砖中时由相应的线圈或场发生器产生的电磁场的幅度。
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公开(公告)号：US3930120A
公开(公告)日：1975-12-30
申请号：US55577475
申请日：1975-03-06
申请人： HUGHES AIRCRAFT CO
CPC分类号： H04N3/28
摘要： A system for producing a raster display having uniform line brightness is disclosed which is especially suitable for multibeam cathode ray tubes. A multi-beam or multi-gun cathode ray tube having N beams for painting N lines at a time to develop a first raster beginning at a first display line position. Subsequent rasters are developed by painting the same N number of lines at a time with a first line of that raster being scanned at a line position that is displaced between 1 and N-1 lines from the first line position painted in the preceding raster. The parallel input sources to the N beam is multiplexed for maintaining the video display at the proper position. That is, a line of input data is always presented on its corresponding display line position on the screen during successive rasters. By shifting the beams in each subsequent raster and by correspondingly switching (multiplexing) the input video data to the appropriate beams for each subsequent raster, the display appears to the eye to have a substantially uniform average line brightness. The invention herein described was made in the course of or under contract or subcontract thereunder (or grant) with the Department of the Navy.
摘要翻译： 公开了一种用于制造具有均匀线亮度的光栅显示器的系统，其特别适用于多光束阴极射线管。 一种具有N个光束的多光束或多枪阴极射线管，用于一次绘制N行以从第一显示线位置开始形成第一光栅。 随后的光栅通过一次绘制相同的N条线而开发，其中该光栅的第一行被扫描在从先前光栅中绘制的第一线位置在1和N-1线之间移位的线位置处。 多路复用用于N波束的并行输入源，以将视频显示保持在适当的位置。 也就是说，在连续光栅期间，一行输入数据总是在其对应的显示线位置上呈现在屏幕上。 通过在每个随后的光栅中移动光束并且通过相应地将输入视频数据切换（多路复用）到每个后续光栅的适当的光束，显示器对眼睛呈现为具有基本均匀的平均线亮度。 本文所述的发明是在与海军部合同或分包合同（或授予）下进行的。
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公开(公告)号：US3909525A
公开(公告)日：1975-09-30
申请号：US42362973
申请日：1973-12-10
发明人： FAGAN JAMES R
CPC分类号： H04N3/28 , G02B3/08 , H04N9/3147
摘要： An array of laterally-abutted Fresnel magnifying lenses in combination with an aligned array of image generators having particular spaced-apart objective images derived from an original image, displays such objective images for viewing as a unitary magnified original image without noticeable overlap or distortion throughout an appreciable theater space.
摘要翻译： 结合具有从原始图像导出的具有特定间隔开的客观图像的对准排列的图像发生器阵列的横向邻接的菲涅尔放大透镜阵列显示这样的客观图像，以便作为整体放大的原始图像观看，而不会在整个过程中发生明显的重叠或失真 明显的剧院空间。
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公开(公告)号：US20190132490A1
公开(公告)日：2019-05-02
申请号：US15871073
申请日：2018-01-15
发明人： Pin-Miao Liu , Ting-Wei Guo
IPC分类号： H04N3/28
摘要： A display device is provided. A data line includes a main line section, a first line section and a second line section spaced apart from one another. The first and second line sections respectively cross over a first scan line set to form first and second crossing regions. The main line section crosses over a second scan line set to form third crossing regions. The first line section is electrically connected to the main line section and one scan line of a third scan line set via a first switch element. The second line section is electrically connected to the main line section and another scan line of the third scan line set via a second switch element. First pixel units, second pixel units and third pixel units correspond respectively to the first crossing regions, the second crossing regions and the third crossing regions. Each of the first pixel units, the second pixel units and the third pixel units includes a switching element. The switching elements are respectively electrically connected to the first line section and one scan line of the first scan line set in the corresponding first crossing region, the second line section and one scan line of the first scan line set in the corresponding second crossing region, and the main line section and one scan line of the second scan line set in the corresponding third crossing region.
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公开(公告)号：US20180205854A1
公开(公告)日：2018-07-19
申请号：US15869830
申请日：2018-01-12
申请人： Hitachi, Ltd.
CPC分类号： H04N3/02 , G01S7/4817 , G01S7/4818 , G01S17/08 , G01S17/42 , G02B6/4206 , G02B6/4239 , H04N3/28
摘要： An optical scanning device for displaying or capturing an image is used, the device including: an optical scanning unit configured to scan emitted light while drawing a spiral trajectory, wherein the unit includes: a light guide path configured to guide incident light to output the emitted light from an emission end; and a vibration unit configured to vibrate the emission end; a light emission control unit configured to control light emission of the emitted light; a polar coordinate generation unit configured to generate a radius and a deflection angle relating to the spiral trajectory; a driving signal generation unit configured to generate a driving signal for driving the vibration unit; an angle correction unit configured to perform calculation for correcting an angle based on information from the driving signal generation unit and output an corrected angle; and a coordinate calculation unit configured to calculate coordinates of an image.
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公开(公告)号：US4603279A
公开(公告)日：1986-07-29
申请号：US537759
申请日：1983-09-30
CPC分类号： G09G1/20 , H01J29/563 , H04N3/28
摘要： A high definition page display system for graphics and text utilizing shaped beams in a CRT is disclosed. Information for the several lines which are written simultaneously is made available in parallel. The invention is described in terms of a character set and text generation, but the same principles apply to any other graphic or bit map and to storage in ROMs or loadable RAMs. Each beam of a multiple CRT tube is biased to generate a portion of a character or grahic as it scans across the tube. It takes 12 lines to scan a character with a N-beam tube, 12 over N character scans are therefore required. With the same scanning speed as with a single beam, this factor can be used to increase definition (i.e. number of lines.) Also the advantage of multiple beams can be used to reduce scanning speed, if this is useful to improve brightness or spot definition, or to increase the number of dots per line. Reduced scanning speed can also reduce costs, particularly if it brings the scan rate in line with standard components available commercially. Another way to use the advantages would be higher refresh rates.
摘要翻译： 公开了一种用于在CRT中使用成形光束的图形和文本的高清晰度页面显示系统。 同时写入的几条线的信息可以并行提供。 根据字符集和文本生成描述本发明，但是相同的原理适用于任何其他图形或位图，并且存储在ROM或可加载RAM中。 多个CRT管的每个光束被偏压以产生一个字符的部分或者当它扫过管时的大部分。 需要12行扫描带有N光束管的字符，因此需要12个N字符扫描。 以与单个光束相同的扫描速度，该因子可用于增加清晰度（即线数）。多光束的优点也可用于降低扫描速度，如果这对改善亮度或光斑定义有用 ，或者增加每行的点数。 降低扫描速度也可以降低成本，特别是如果扫描速度符合商业上可用的标准组件。 另一种使用优势的方法是更高的刷新率。
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公开(公告)号：US4160273A
公开(公告)日：1979-07-03
申请号：US852086
申请日：1977-11-16
申请人： Frank J. Marlowe , Robert H. Dawson
发明人： Frank J. Marlowe , Robert H. Dawson
CPC分类号： H04N3/28 , G06F1/03 , G09G1/20 , H03M1/1047
摘要： A digital memory may be addressed with an analog signal utilizing a circuit comprising a digital to analog converter. A comparator compares the output of the digital to analog converter to the analog address signal. The output of the comparator is coupled to means for incrementing and decrementing a digital number in response to that output. The digital number incrementing and decrementing means has an output which is coupled to the addressing input of the digital memory. Switch means alternately connects the input of the digital to analog converter to either the output of the random access memory or the output of the means for changing the digital number.
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公开(公告)号：US5389855A
公开(公告)日：1995-02-14
申请号：US16590
申请日：1993-02-10
申请人： Hsing-Yao Chen
发明人： Hsing-Yao Chen
CPC分类号： H04N5/68 , H01J29/488 , H04N3/28 , H01J2229/507
摘要： A multi-beam electron gun for use in a monochrome cathode ray tube (CRT) such as used in a black and white television receiver, a projection television receiver, or a computer monitor includes G1 control and G2 screen grids each having a plurality of vertically aligned apertures for forming electron beams which are deflected in unison across the CRT's display screen to simultaneously trace a plurality of vertically spaced, horizontal scan lines with each display screen sweep. The electron beams are deflected across the screen in a raster-like manner with each beam containing video information for each adjacent scan line. The G1 control grid includes a plurality of discrete conductive portions each including a respective beam passing aperture and each coupled to a respective video signal source, with the video signal sources including memory for storing video signal information for subsequent display. This permits plural adjacent scanning electron beams to simultaneously provide adjacent portions of the same frame of a video image on the display screen. The grids in the main lens portion of the electron gun include vertically elongated, common apertures for focusing each of the electron beams on the display screen, with the electron beams deflected by a vertically oriented, self-convergent magnetic deflection yoke. In another embodiment, each of a plurality of vertically aligned apertures in the G1 grid has an associated cathode, with a respective video signal provided to each of the cathodes for simultaneously writing video information on adjacent horizontal scan lines on the video display.
摘要翻译： 用于黑白电视接收机，投影电视接收机或计算机监视器的单色阴极射线管（CRT）的多光束电子枪包括G1控制和G2屏幕格栅，每个具有多个垂直 用于形成电子束的对准孔，它们在CRT的显示屏上同时偏转，以同时跟踪每个显示屏扫描的多个垂直间隔的水平扫描线。 电子束以栅格状的方式在屏幕上偏转，每个波束包含每个相邻扫描线的视频信息。 G1控制栅格包括多个分立的导电部分，每个分立的导电部分包括相应的光束通过孔径，并且各自耦合到相应的视频信号源，视频信号源包括用于存储用于后续显示的视频信号信息的存储器。 这允许多个相邻的扫描电子束在显示屏上同时提供视频图像的相同帧的相邻部分。 电子枪的主透镜部分中的栅格包括用于将每个电子束聚焦在显示屏上的垂直细长的公共孔，电子束由垂直取向的自会聚磁偏转轭偏转。 在另一个实施例中，G1格栅中的多个垂直对准的孔中的每一个具有相关联的阴极，其中提供给每个阴极的相应视频信号用于在视频显示器上的相邻水平扫描线上同时写入视频信息。
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公开(公告)号：US4521802A
公开(公告)日：1985-06-04
申请号：US440985
申请日：1982-11-12
申请人： Yasunari Ikeda
发明人： Yasunari Ikeda
摘要： A double-scanning non-interlace color television receiver which receives an interlace color television signal having alternating odd and even fields of scanned lines which are normally interlaced, as displayed, comprises a receiver circuit which receives the interlace color television signal and includes a circuit which generates respective chroma and luminance scanning line signals in response thereto, a visual display apparatus, and a non-interlace converting circuit with a luminance double-scanning circuit which generates an averaged luminance scanning line signal from each two consecutive luminance scanning line signals of the same field, and which supplies the consecutive luminance scanning line signals and the averaged luminance scanning line signal to the visual display apparatus for display by the latter of each averaged luminance scanning line signal between the respective two consecutive luminance scanning line signals, and a circuit which supplies to the visual display apparatus color difference signals derived from the chroma scanning line signal corresponding to one of the two consecutive luminance scanning line signals for display in synchronism with the averaged luminance scanning line signal.
摘要翻译： 一种双扫描的非隔行彩色电视接收机，其接收如所显示的正常交织的具有扫描线的交替奇数和偶数场的隔行彩色电视信号，包括一接收电路，该接收电路接收隔行彩色电视信号， 产生相应的色度和亮度扫描线信号，视觉显示装置和具有亮度双重扫描电路的非隔行转换电路，其产生来自其每个两个连续的亮度扫描线信号的平均亮度扫描线信号 场，并且将连续的亮度扫描线信号和平均的亮度扫描线信号提供给可视显示装置，用于由相应的两个连续的亮度扫描线信号之间的每个平均亮度扫描线信号的后者显示;以及电路， 到视觉显示器 从对应于两个连续的亮度扫描线信号之一的色度扫描线信号导出的atus色差信号，用于与平均的亮度扫描线信号同步显示。
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10.发明授权System for compensating for intensity variations and beam landing errors in flat panel display devices 失效用于补偿平板显示设备中的强度变化和光束着陆误差的系统
公开(公告)号：US4376260A
公开(公告)日：1983-03-08
申请号：US311258
申请日：1981-10-14
申请人： John P. Russell
发明人： John P. Russell
摘要： A system for correcting for intensity variations and electron beam landing errors in a flat panel display device includes two compensation means. The first compensation means applies a continuously varying voltage to the modulation electrodes to add a varying current to the electron beam current. The compensation current offsets the intensity variations of the electron beam. The second compensation means applies an averaged position signal to the modulation electrodes to compensate for beam landing errors of the electron beam.
摘要翻译： 用于校正平板显示装置中的强度变化和电子束着落误差的系统包括两个补偿装置。 第一补偿装置对调制电极施加连续变化的电压，以向电子束电流增加变化的电流。 补偿电流抵消电子束的强度变化。 第二补偿装置将平均位置信号施加到调制电极以补偿电子束的束着陆误差。
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