公开(公告)号：US5382883A

公开(公告)日：1995-01-17

申请号：US98072

申请日：1993-07-28

申请人： Hsing-Yao Chen ,  Chun-Hsien Yeh

发明人： Hsing-Yao Chen ,  Chun-Hsien Yeh

IPC分类号： H01J29/48 ,  G09G1/00 ,  G09G1/20 ,  H01J29/50 ,  H01J29/51 ,  H01J29/70

CPC分类号： H01J29/70 ,  G09G1/002 ,  G09G1/20 ,  H01J29/50 ,  H01J2229/507

摘要： An inline electron gun for a color cathode ray tube (CRT) directs electron beams through an Einzel lens common to all of the beams for focusing the beams on a display screen across which the beams are scanned in horizontal scan lines in a raster-like manner. The electron gun includes a beam forming region (BFR) for forming the beams in a matrix array including a plurality of vertically spaced, horizontally aligned apertures, where each horizontally aligned group of apertures passes the primary color electron beams for one scan line on the display screen and vertically aligned apertures are grouped to pass common color electron beams which are horizontally deflected in synchronism over adjacent, vertically spaced scan lines on the display screen. All of the electron beams converge and cross over the electron gun's axis at the center of the Einzel lens, with the diverging beams then directed through a convergence arrangement which converges each group of the horizontally aligned beams to a common spot on a given scan line permitting video display information to be presented simultaneously on more than one scan line. The beam convergence arrangement equalizes the vertical and horizontal convergence effects on each of the beams in the matrix array of beams to deflect the outer beams inwardly while deflecting the upper and lower beams respectively downwardly and upwardly so that each group of horizontally aligned beams converge on the center beam of that group at the display screen.

摘要翻译： 用于彩色阴极射线管（CRT）的直列电子枪引导电子束通过所有光束共同的Einzel透镜，用于将光束聚焦在显示屏幕上，横向扫描线以光栅状扫描光束 。 电子枪包括用于将矩阵阵列中的波束形成的波束形成区域（BFR），该矩阵阵列包括多个垂直间隔开的水平对准的孔，其中每个水平排列的孔隙通过原色电子束，以在显示器上的一条扫描线 屏幕和垂直对准的孔被分组以通过在显示屏上的相邻的，垂直间隔的扫描线上水平偏转的普通彩色电子束。 所有电子束在Einzel透镜的中心会聚并交叉电子枪的轴线，发散光束然后被引导通过会聚装置，该会聚装置将每组水平对准的光束会聚到给定扫描线上的公共点，允许 视频显示信息将同时显示在多条扫描线上。 光束会聚装置使垂直和水平收敛效应平衡在矩阵阵列中的每个光束上，以使外光束向内偏转，同时分别向上和向下偏转上光束和下光束，使得每组水平对准的光束会聚在 该组的中心光束在显示屏幕上。

公开(公告)号：US5381252A

公开(公告)日：1995-01-10

申请号：US79900

申请日：1993-06-22

申请人： Hsing-Yao Chen

发明人： Hsing-Yao Chen

IPC分类号： G09G3/34 ,  H04N5/74 ,  G02F1/1335

CPC分类号： G09G3/342 ,  H04N5/7441 ,  G09G2310/024

摘要： A projection liquid crystal display (LCD) system includes a liquid crystal display panel including a first plurality of horizontally aligned transparent conductive scanning electrodes and a second plurality of vertically aligned transparent conductive signal electrodes disposed on opposed surfaces of the panel. Light directed onto the display panel's aft surface is transmitted through the panel as each horizontal linear array of electrodes is turned "ON", with the horizontal linear arrays sequentially turned on for vertically scanning the display panel in a stepwise manner. LCD backlighting is provided by a cathode ray tube (CRT) having a phosphorbearing faceplate which emits light when an electron beam is incident thereon. The CRT includes two electron beams which are directed onto the faceplate's inner phosphor layer and are deflected in opposed directions along a common horizontal scan line, where each horizontal scan line on the CRT's faceplate is traced in sequence by the two beams. Each horizontal scan of the CRT's faceplate by the two electron beams is synchronized with the turning on of the vertically spaced, horizontal arrays of the first scanning electrodes to provide a single line light source for illuminating only that portion of the display panel containing video information for improved video image contrast and more efficient LCD panel backlighting. The total electron beam energy at each faceplate pixel when integrated over an entire horizontal scan line period is essentially constant when both beams have equal Gaussian beam density distributions to provide uniform illumination over the entire horizontal scan line.

摘要翻译： 投影液晶显示（LCD）系统包括：液晶显示面板，包括第一多个水平对准的透明导电扫描电极和设置在面板的相对表面上的第二多个垂直对准的透明导电信号电极。 当每个水平线性阵列的电极“接通”时，指向显示面板的后表面的光被透射通过面板，水平线性阵列依次打开以逐步地垂直扫描显示面板。 LCD背光源由阴极射线管（CRT）提供，该阴极射线管具有在电子束入射时发光的荧光屏面板。 CRT包括两个电子束，其被引导到面板的内部荧光体层上并沿着共同的水平扫描线在相反的方向上偏转，其中CRT面板上的每个水平扫描线由两个光束依次跟踪。 通过两个电子束对CRT面板的每个水平扫描与第一扫描电极的垂直间隔的水平阵列的导通同步，以提供单线光源，用于仅照亮包含视频信息的显示面板的那部分， 改进的视频图像对比度和更有效的LCD面板背光。 当两个光束具有相等的高斯光束密度分布以在整个水平扫描线周期上提供均匀的照明时，在整个水平扫描线周期上积分时，每个面板像素处的总电子束能量基本上是恒定的。

公开(公告)号：US5182492A

公开(公告)日：1993-01-26

申请号：US885880

申请日：1992-05-20

申请人： Hsing-Yao Chen

发明人： Hsing-Yao Chen

IPC分类号： H01J29/48

CPC分类号： H01J29/488

摘要： Energetic electrons emitted by heated cathodes in a multi-beam color cathode ray tube (CRT) are directed to a low voltage beam forming region (BFR) of an electron gun, with the thus formed electron beams then directed through a high voltage main focus lens for focusing the beams on a display screen of the CRT. The BFR includes a G.sub.2 electron having three spaced inline apertures each disposed within an essentially electrostatic field-free region and through each of which a respective electron beam passes. Each G.sub.2 aperture intercepts an outer portion of an associated electron beam to provide an electron beam cross sectional shape which compensates for the asymmetric focusing effect of the main focus lens in correcting for beam spherical aberration to provide a rotationally symmetric electron beam spot on the display screen. The invention is also adapted for use in a monochrome, single electron beam CRT to provide a desired electron beam spot shape for optimum display pixel density and/or to eliminate display discontinuities and provide a smooth video image display.

摘要翻译： 在多光束彩色阴极射线管（CRT）中由加热阴极发射的能量电子被引导到电子枪的低电压波束形成区域（BFR），由此形成的电子束然后被引导通过高压主聚焦透镜 用于将光束聚焦在CRT的显示屏上。 BFR包括具有三个间隔开的在线孔径的G2电子，其各自设置在基本上无静电的区域内，并且通过各自的电子束通过。 每个G2孔径截取相关联的电子束的外部部分以提供电子束横截面形状，其补偿主聚焦透镜在校正束球面像差中的不对称聚焦效应，以在显示屏上提供旋转对称的电子束斑点 。 本发明还适用于单色单电子束CRT，以提供期望的电子束斑点形状，以获得最佳显示像素密度和/或消除显示不连续性并提供平滑的视频图像显示。

公开(公告)号：US4388553A

公开(公告)日：1983-06-14

申请号：US282230

申请日：1981-07-10

申请人： Hsing-Yao Chen

发明人： Hsing-Yao Chen

IPC分类号： H01J29/50 ,  H01J29/62

CPC分类号： H01J29/62 ,  H01J29/503

摘要： An improved color picture tube has an inline electron gun for generating and directing three electron beams, a center beam and two side beams, along coplanar paths toward a screen of the tube. The gun includes a main focus lens for focusing the electron beams. The main focus lens is formed by two spaced electrode members each having three separate inline apertures therein. Each electrode also includes a peripheral rim. The peripheral rims of the two electrodes face each other. The apertured portion of each electrode is within a recess set back from the rim. The main focus lens electrode closest to the screen includes a slot on the side facing the screen. The slot extends in the direction of the three electron beam paths and includes means for providing a weaker stigmator effect on the two side beams than on the center beam.

摘要翻译： 一种改进的彩色显像管具有一个一字形电子枪，用于沿着朝向管的屏幕的共面路径产生和引导三束电子束，中心光束和两个侧光束。 枪包括用于聚焦电子束的主聚焦透镜。 主聚焦透镜由两个间隔开的电极构件形成，每个电极构件在其中具有三个单独的内联孔。 每个电极还包括外围边缘。 两个电极的外围边缘彼此面对。 每个电极的有孔部分在从边缘回退的凹部内。 最靠近屏幕的主聚焦透镜电极包括在面对屏幕的一侧的槽。 槽沿三个电子束路径的方向延伸，并且包括用于在两侧梁上提供比在中心梁上更弱的标示器作用的装置。

公开(公告)号：US06815881B2

公开(公告)日：2004-11-09

申请号：US10073560

申请日：2002-02-11

申请人： Hsing-Yao Chen ,  Hsiang-Lin Chang

发明人： Hsing-Yao Chen ,  Hsiang-Lin Chang

IPC分类号： H01J2951

CPC分类号： H01J29/503 ,  H01J29/58 ,  H01J2229/4844

摘要： An electron gun includes plural aligned charged grids each having an aperture (in a monochrome CRT) or plural apertures (in a color CRT) through which an electron beam (or beams) is directed. The beams emitted by a cathode sequentially transit a beam forming region (BFR), a dynamic focus lens and a main focus lens prior to being incident on the CRT's display screen. The electron beam tends to expand in diameter in the direction of the CRT's display screen. This results in an increase in the focusing effect on the electron beam of the electron gun's grids in proceeding from the BFR toward the display screen where the beam passing apertures in the various grids are of the same size. To increase electron beam focusing sensitivity while reducing the beam's dynamic focus voltage, the beam passing apertures in the gun's dynamic focus lens are provided with progressively reduced size in proceeding toward the electron gun's cathode.

公开(公告)号：US06528934B1

公开(公告)日：2003-03-04

申请号：US09583218

申请日：2000-05-30

申请人： Hsing-Yao Chen ,  Shunlu Xiao

发明人： Hsing-Yao Chen ,  Shunlu Xiao

IPC分类号： H01J2950

CPC分类号： H01J29/56 ,  H01J29/488

摘要： An electron gun for use in a cathode ray tube (CRT) includes a source of energetic electrons, i.e., a cathode, a beam forming region for forming the energetic electrons into a narrow beam, an arrangement for deflecting the beam over a display screen, and a focus arrangement for focusing the beam on the display screen in the form of a small spot in forming a video image. The beam forming region includes a G1 control grid, a G2 screen grid and a portion of a G3 grid in facing relation to the G2 grid, where each grid includes a respective aperture through which the electron beam is directed, with the apertures aligned along a common axis. The size of the aperture on the side of the G2 grid in facing relation to the G1 grid forms a first focusing lens and is smaller than the size of the aperture on the opposed side of the G2 grid in facing relation to the G3 grid which forms a second focusing lens. The larger size of the G2 aperture in facing relation to the G3 grid reduces electron beam convergence and spherical aberration of a video image formed by the beam on the display screen. The aperture of the G2 grid may increase in diameter in proceeding from the low side, i.e., the G1 control grid facing side, to the high side, i.e., the G3 grid facing side, in a step-wise manner or in the general shape of a cone. The invention is adapted for use in a single beam projection CRT as well as in a multi-beam color CRT.

摘要翻译： 用于阴极射线管（CRT）的电子枪包括能量电子源，即阴极，用于将能量电子形成为窄波束的波束形成区域，用于使波束偏转在显示屏上的布置， 以及用于在形成视频图像中以小斑点的形式将光束聚焦在显示屏上的聚焦装置。 波束形成区域包括G1控制网格，G2屏幕网格和与G2网格面对的G3网格的一部分，其中每个网格包括相应的孔，电子束通过该孔径沿着 共轴。 与G2格栅相对的G2格栅侧面上的孔径尺寸形成第一聚焦透镜，并且小于G2格栅相对侧上与G3格栅面对面的孔径尺寸 第二聚焦透镜。 与G3格栅相对的G2孔径的较大尺寸减小了由显示屏上的光束形成的视频图像的电子束会聚和球面像差。 G2栅格的孔径可以从低侧（即，G1控制栅格面向侧）向高侧（即，G3栅格面向侧）以逐步的方式或以一般形状 的锥体。 本发明适用于单光束投影CRT以及多光束彩色CRT。

公开(公告)号：US5479187A

公开(公告)日：1995-12-26

申请号：US200345

申请日：1994-02-23

申请人： Hsing-Yao Chen

发明人： Hsing-Yao Chen

IPC分类号： G09G3/34 ,  G09G3/36

CPC分类号： G09G3/342 ,  G09G2310/024

摘要： A video display system includes a passive display panel such as a liquid crystal display (LCD) panel including a first plurality of horizontally aligned transparent conductive scanning electrodes and a second plurality of vertically aligned transparent conductive signal electrodes disposed on opposed surfaces of the panel. Light directed onto the aft surface of the display panel is transmitted through the panel as each horizontal linear array of first scanning electrodes is turned "ON" with the horizontal linear arrays sequentially turned on for vertically scanning the display panel in a step wise manner. Video image information is provided to the vertically aligned electrodes. Liquid crystal display backlighting is provided by an elongated, linear lamp disposed within a first concave reflector for directing the beam onto a second reflector which reflects the beam onto the display panel's aft surface in the form of a thin, elongated line extending the width of the display panel. The second reflector displaces the beam over the display panel in the disclosed embodiment from top to bottom synchronously with scanning of the horizontally aligned scanning electrodes in the panel such that the beam illuminates only the horizontal linear array of the scanning electrodes which is turned "ON", i.e. only that portion of the display panel containing video information, for improved video image contrast and more efficient backlighting of the display panel.

摘要翻译： 视频显示系统包括诸如液晶显示器（LCD）面板的无源显示面板，其包括第一多个水平排列的透明导电扫描电极和布置在面板的相对表面上的第二多个垂直对准的透明导电信号电极。 导向到显示面板的后表面的光通过每个水平线性阵列的第一扫描电极的“水平线性阵列”顺序地接通以逐步地垂直扫描显示面板的“ON”被传送通过面板。 将视频图像信息提供给垂直排列的电极。 液晶显示器背光由设置在第一凹面反射器内的细长线性灯提供，用于将光束引导到第二反射器上，所述第二反射器将光束以细长的线形式呈现在显示面板的后表面上， 显示面板。 第二反射器在所公开的实施例中将光束从显示面板上方移位，同时扫描面板中的水平排列的扫描电极，使得光束仅照亮被打开的扫描电极的水平线性阵列 即仅包含显示面板的包含视频信息的部分，以提高显示面板的视频图像对比度和更有效的背光。

公开(公告)号：US5303054A

公开(公告)日：1994-04-12

申请号：US61552

申请日：1993-05-17

申请人： Hsing-Yao Chen

发明人： Hsing-Yao Chen

IPC分类号： H04N5/74

CPC分类号： H04N9/3141

摘要： A projection liquid crystal display (LCD) system includes an LCD panel including a first plurality of horizontally aligned transparent conductive scanning electrodes and a second plurality of vertically aligned transparent conductive signal electrodes disposed on opposed surfaces of the panel. Light directed onto the aft surface of the display panel is transmitted through the panel as each horizontal linear array of first scanning electrodes is turned "ON", with the horizontal linear arrays sequentially turned on for vertically scanning the display panel in a stepwise manner. Liquid crystal display backlighting is provided by a cathode ray tube (CRT) having a phosphor-bearing faceplate which emits light when energetic electrons in the form of a horizontal, linear, elongated beam are incident thereon. An electron beam source in the CRT including, in combination, an elongated, linear wire-like cathode and a focusing concave charged electrode disposed about the cathode and having an electron-passing slot extending substantially the entire length thereof directs an elongated, linear, horizontally aligned electron beam across the width of the CRT's faceplate. A pair of spaced, charged plates disposed adjacent the electron-passing slot in the focusing electrode deflect the electron beam vertically over the faceplate in a stepwise manner and synchronously with actuation of the scanning electrodes to illuminate only that portion of the display panel containing video information for improved video image contrast and more efficient backlighting.

摘要翻译： 投影液晶显示（LCD）系统包括：LCD面板，包括第一多个水平排列的透明导电扫描电极和布置在面板的相对表面上的第二多个垂直对准的透明导电信号电极。 当第一扫描电极的每个水平线性阵列变为“接通”时，指向显示面板的后表面的光被透射通过面板，水平线性阵列依次打开以逐步地垂直扫描显示面板。 液晶显示器背光由具有荧光体支承面板的阴极射线管（CRT）提供，当具有水平线性细长光束的形式的高能电子入射时，发射光。 CRT中的电子束源组合包括细长的线状线状阴极和设置在阴极周围的聚焦凹形带电电极，并具有基本上延伸整个长度延伸的电子通过狭槽，其引导细长的线性水平 对准的电子束横跨CRT面板的宽度。 配置在聚焦电极的电子通过狭缝附近的一对间隔开的充电板以逐步的方式使电子束垂直偏转在面板上并与扫描电极的致动同步，仅照亮包含视频信息的显示面板的那部分 用于改善视频图像对比度和更有效的背光。

公开(公告)号：US5220239A

公开(公告)日：1993-06-15

申请号：US804297

申请日：1991-12-09

申请人： Hsing-Yao Chen

发明人： Hsing-Yao Chen

IPC分类号： H01J29/48

CPC分类号： H01J29/488

摘要： The low voltage beam forming region (BFR) of an electron gun such as used in a cathode ray tube (CRT) includes a reduced aperture in an electrostatic field-free region of the gun's G.sub.2 screen grid. The electron gun's G.sub.1 control grid is provided with an enlarged aperture to allow more electrons to enter the BFR from the cathode for increased electron beam peak current densities and enhanced video display brightness. The limiting aperture in the G.sub.2 grid intercepts outer electrons in the electron beam as well as those electrons having a high velocity transverse to the beam axis for limiting beam spot size and eliminating undesirable "halo" about the electron beam spot on the CRT's display screen. In another embodiment, the spacing between the electron gun's cathode and its G.sub.1 control grid is increased to allow the introduction of more electrons in the beam for higher peak electron beam current density while the G.sub.2 limiting aperture maintains a small beam spot size for increased video display brightness and improved beam spot resolution. The enlarged G.sub.1 aperture may be combined with the increased cathode-G.sub.1 control grid spacing in a CRT with a G.sub.2 limiting aperture for further improvement in video display brightness and beam spot resolution.

摘要翻译： 诸如在阴极射线管（CRT）中使用的电子枪的低电压波束形成区域（BFR）包括枪的G2屏幕网格的无静电场区域中的减小的孔径。 电子枪的G1控制栅格具有放大的孔径，以允许更多的电子从阴极进入BFR以增加电子束峰值电流密度和增强的视频显示亮度。 G2栅格中的限制孔径截取电子束中的外部电子以及横向于光束轴线的高速度的电子，以限制束斑尺寸并消除CRT显示屏上电子束斑点的不利影响。 在另一个实施例中，电子枪的阴极与其G1控制栅极之间的间距增加以允许在光束中引入更多的电子以获得较高的峰值电子束电流密度，而G2限制孔径维持较小的光束斑点尺寸以增加视频显示 亮度和光束点分辨率得到改善。 放大的G1光圈可以与具有G2限制孔径的CRT中增加的阴极-G1控制栅格间距组合，以进一步提高视频显示亮度和光束点分辨率。

公开(公告)号：US5055749A

公开(公告)日：1991-10-08

申请号：US579128

申请日：1990-09-06

申请人： Hsing-Yao Chen ,  Richard M. Gorski

发明人： Hsing-Yao Chen ,  Richard M. Gorski

IPC分类号： H01J29/50 ,  H01J29/51 ,  H01J29/62

CPC分类号： H01J29/628 ,  H01J29/503 ,  H01J29/51 ,  H01J2229/4841 ,  H01J2229/4865 ,  H01J2229/4872 ,  H01J2229/4879 ,  H01J2229/4893

摘要： Apparatus in a three-beam inline electron gun system for a color cathode ray tube, wherein the tube has a screen and a partially self-converging yoke which partially, but incompletely, converges the three beams and undesirably imparts astigmatism to the beams in off-center regions of the screen, applies a field-strength-dependent asymmetrical field to the two outer beams to provide partial dynamic convergence. The apparatus includes an electron beam source for developing three electron beams, a focusing lens portion for focusing the three electron beams at the tube screen, an astigmatism correcting lens portion for developing an astigmatic field component in the path of each of the beams, and a modulated voltage source for modulating the strength of the astigmatic field component as a function of beam deflection angle to at least partially compensate for the yoke-induced astigmatism and for modulating focus field strength in providing partial dynamic electron beam convergence. The astigmatism correcting lens portion includes an electrode having outer beam apertures shaped to create field-strength-dependent asymmetric outer beam fields and to produce partial dynamic convergence, with the dynamic convergence effects of the yoke, the focusing lens portion, and the astigmatism correcting lens portion combining additively.

摘要翻译： 用于彩色阴极射线管的三光束一字形电子枪系统中的装置，其中管具有部分但不完全地会聚三束光束的屏幕和部分自会聚磁轭，并且不期望地将光束散射到离散光束， 屏幕的中心区域将场强依赖的不对称场应用于两个外束，以提供部分动态收敛。 该装置包括用于显影三个电子束的电子束源，用于将三个电子束聚焦在管屏上的聚焦透镜部分，用于在每个光束的路径中显影散光场分量的像散校正透镜部分，以及 调制电压源，用于调制像散电场分量的强度作为光束偏转角的函数，以至少部分地补偿轭引起的散光并用于在提供部分动态电子束会聚时调制聚焦场强。 像散校正透镜部分包括具有外光束孔径的电极，其具有形状以产生场强依赖的非对称外束场并且产生部分动态会聚，其中轭，聚焦透镜部分和像散校正透镜的动态收敛效应 部分组合。