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1.发明授权Active matrix liquid crystal display systems and methods of operating such systems 失效有源矩阵型液晶显示装置和操作该装置的方法
公开(公告)号：EP0487140B1
公开(公告)日：1996-03-06
申请号：EP91202929.5
申请日：1991-11-12
IPC分类号： G09G3/36
CPC分类号： G09G3/3648 , G09G2320/0247 , G09G2320/0252 , G09G2340/0435
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公开(公告)号：EP0491436A3
公开(公告)日：1993-02-10
申请号：EP91203273.7
申请日：1991-12-12
CPC分类号： G06F3/0412
摘要： An active matrix liquid crystal display device comprising an array of picture elements (12) which include respective switching means (20), e.g. TFTs, and which are driven a row at a time by drive signals supplied via sets of row and column address conductors (14,16) further includes an array of active addressed sensing elements (18) each consisting of a photosensitive element (26), e.g. a thin film photoresistor or photodiode, charge storage means (25) and a switching device (24), e.g. a TFT, connected to respective row and column address conductors (14,16). The charge storage means are periodically charged through operation of their associated switching devices by said drive signals and are selectively discharged upon their associated photosensitive element being illuminated by, for example, a light pen (41). The states of the charge storage means of all the sensing elements are determined, one row at a time, by a detection circuit (40) connected to the column address conductors (16) during each display field period in synchronism with the driving of the rows of picture elements.
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3.发明公开Method of driving a matrix display device and a matrix display device operable by such a method 失效一种用于控制矩阵显示器和通过该方法矩阵显示控制方法。
公开(公告)号：EP0489459A2
公开(公告)日：1992-06-10
申请号：EP91203100.2
申请日：1991-11-27
发明人： Knapp, Alan George , Sandoe, Jeremy Noel , Annis, Alexander David, c/o Philips Electronics , Wolfs, Peter Bas Anton
IPC分类号： G09G3/36
CPC分类号： G09G3/367 , G09G3/3614 , G09G2310/0248
摘要： In operation of an active matrix display device comprising an array of display elements (12), for example liquid crystal elements, each connected in series with an associated two terminal non-linear switching device (30), e.g. a MIM, between row and column address conductors (22,24), and row and column driver circuits (40,43) for applying selection signals to each row conductor in turn and data signals to the column conductors, the data signals are applied for part only of the row address period and a row selection signal commences prior to the data signal and while a reference potential is applied to the column conductors whereby during a row address period a display element is initially charged to a level approaching the lower end of the display element's operational range of voltages and thereafter charged to the required level according to the data signal. Vertical cross-talk is reduced and peak current density through the non-linear devices is kept low, thereby avoiding the risk of damage.
摘要翻译： 在有源矩阵显示装置，包括显示元件的阵列（12），对于实施例的液晶元件的外科手术中，每个串联连接在相关联的两个终端的非线性开关装置（30），E. G. 一个MIM，行和列地址导线（22,24），并且行和列驱动器电路（40,43），用于将选择信号到每个行导线反过来和数据信号到列导体之间，该数据信号被施加于 之前的数据信号仅行地址周期和行选择信号的一部分开始，并同时参考电势被施加到列导体，由此在一个行地址周期的显示元件初始充电到接近的下端的水平 显示元件的电压的和业务范围，随后装入到所需水平雅丁到数据信号。 垂直串扰被降低，并通过非线性器件的峰值电流密度保持低，从而避免损坏的风险。
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公开(公告)号：EP0131335B1
公开(公告)日：1988-03-02
申请号：EP84200973.0
申请日：1984-07-05
发明人： Woodhead, Alfred Walters , Gill, Ronald William Arthur , Knapp, Alan George , Lamport, Daphne Louise , Washington, Derek
CPC分类号： H01J31/124 , H01J43/22
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公开(公告)号：EP0240076A2
公开(公告)日：1987-10-07
申请号：EP87200554.1
申请日：1987-03-24
CPC分类号： H04N9/26
摘要： A colour display system including a cathode ray display tube (10) of the kind which has an electron multiplier (16) arranged adjacent a luminescent screen (14) comprising a repeating pattern of three different colour phosphor elements and pairs of colour selection electrodes (38, 40) associated with each channel of the multiplier operable to control the direction of the electron beam from the channels for colour selection purposes uses a switching bridge circuit comprising semiconductor switching devices (52, 54, 56, 58), e.g. MOSFETs, connected between voltage supplies for switching the voltage applied to each one of the pair of electrodes between three respective levels in synchronism to achieve a predetermined colour selection sequence. The semiconductor devices are controlled by synchronised waveforms from a pulse generating circuit (86) via optocouplers (88) enabling the switching bridge circuit to be floated at a high potential. The switching voltages applied to one of the selection electrodes may be offset with respect to those applied to the other electrode.
摘要翻译： 一种彩色显示系统，包括这样的阴极射线显示管（10），该阴极射线显示管具有邻近荧光屏（14）布置的电子倍增器（16），该电子倍增器包括三个不同颜色的磷光体元件和一对选色电极（38）的重复图案 ，40），其可操作以控制来自所述通道的电子束的方向用于颜色选择目的的每个通道，使用包括半导体开关器件（52,54,56,58）的开关桥电路，例如 MOSFET，连接在用于在三个相应电平之间同步地施加到一对电极中的每一个上的电压的电压源之间，以实现预定的颜色选择序列。 半导体器件通过经由光耦合器（88）的来自脉冲发生电路（86）的同步波形来控制，使得开关桥式电路能够浮置在高电位。 施加到选择电极之一的开关电压可以相对于施加到另一个电极的那些偏移。
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6.发明公开
公开(公告)号：EP0219914A2
公开(公告)日：1987-04-29
申请号：EP86201801.7
申请日：1986-10-17
CPC分类号： H01J9/02 , H01J29/803
摘要： The invention relates to methods of making colour selection deflection electrode structures for use in colour picture display tubes having a channel plate electron multiplier arranged adjacent a screen, the deflection electrode structure being disposed intermediate the multiplier and screen and consisting of pairs of elongate, rectangular electrodes aligned with rows of output apertures of the multiplier and operable to control the direction of an electron beam emanating from those apertures so as to impinge upon a selected one of a plurality of different colour phosphors in repeating pattern comprising the screen. The methods involve the steps of forming slits (1) in a pair of thin metal sheets, e.g. by etching, to define the required deflection electrodes (3) together with margins (7, 8) and interconnecting supporting strips (4, 5), bonding the two sheets together using an insulative bonding glass material with respective electrodes thereof in registration to form an integral assembly, and rotating the electrodes (3) through around 90° with respect to the plane of the sheets. Spacing elements determine spacing between opposed electrodes and margins.
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公开(公告)号：EP0131999A1
公开(公告)日：1985-01-23
申请号：EP84200972.2
申请日：1984-07-05
CPC分类号： H01J29/023 , H01J29/80
摘要： A colour display tube (10) which has a channel plate electron multiplier (22) for multiplying a low voltage, low current electron beam (18) and thereby obtaining an amplified output beam (60) for producing an image on a screen (24) formed of a plurality of different phosphors arranged as dots, each of which is surrounded by at least one ring. In order to form the output beam (60) into well defined dots and rings to obtain good colour purity, the source-to-screen distance of the output beam (60) is varied in a predertermined manner. A means for doing this comprises additional electrodes (50), (52) and (54) mounted on the output side of the electron multiplier (22).
摘要翻译： 一种彩色显像管（10），其具有用于乘以低电压，低电流电子束（18）的通道板电子倍增器（22），从而获得用于在屏幕（24）上产生图像的放大输出光束（60） 由排列成点的多个不同的荧光体形成，每个荧光体被至少一个环包围。 为了将输出光束（60）形成良好限定的点和环以获得良好的色纯度，输出光束（60）的源到屏幕距离以预先的方式变化。 用于这样做的手段包括安装在电子倍增器（22）的输出侧上的附加电极（50），（52）和（54）。
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公开(公告)号：EP0131336A1
公开(公告)日：1985-01-16
申请号：EP84200974.8
申请日：1984-07-05
发明人： Woodhead, Alfred Walters , Gill, Ronald William Arthur , Knapp, Alan George , Lamport, Daphne Louise , Washington, Derek
CPC分类号： H01J31/124
摘要： @ In order to reduce contrast degradation in an electrostatically scanned flat cathode ray tube (10) having a channel plate electron multiplier (44), due to back-scattered electrons (46) entering channels remote from their origin, steps are taken to restrict the acceptance angle of the channel plate electron multiplier. In one arrangement means are provided on the input surface to restrict the angle of entry to a range normally associated with the addressing electron beam (arrow A). In another arrangement (Figures 9A and 9B or Figure 10) the ready emission of secondary electrons is restricted to a predetermined arcuate portion of the input of each channel of the electron multiplier. In either arrangement stray electrons (arrows B and C) are unable to impinge upon the secondary emitting material (481 or surface in the channels and in consequence produce many fewer back-scattered electrons.
Optionally a material (50) having a low back-scatter coefficient and a microscopically rough surface texture may be applied to the exposed surfaces, apart from the apertures, of the input side of the electron multiplier (44).摘要翻译： 为了减小具有通道板电子倍增器（44）的静电扫描平面阴极射线管（10）中的对比度降低，由于背散射电子（46）进入远离其原点的通道，采取步骤来限制 通道板电子倍增器的接受角度。 在一个布置中，在输入表面上提供装置以将进入的角度限制到通常与寻址电子束（箭头A）相关联的范围。 在另一种布置中（图9A和9B或图10），二次电子的准备发射被限制在电子倍增器的每个通道的输入的预定弧形部分。 在任一种排列中，杂散电子（箭头B和C）不能撞击二次发射材料（481或通道中的表面），并因此产生更少的后向散射电子。可选地，具有低后向散射 系数和微观上粗糙的表面纹理可以施加到电子倍增器（44）的输入侧的除孔之外的暴露表面上。
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公开(公告)号：EP0123348A1
公开(公告)日：1984-10-31
申请号：EP84200518.3
申请日：1984-04-12
CPC分类号： H01J31/208 , H01J29/96 , H01J2229/964
摘要： A display apparatus which comprises a display tube (10) having a channel plate electron multiplier (38) and a penetron screen (40) with an electrode (42) (thereinafter termed the screen electrode) thereon by which an accelerating field is provided between the electron multiplier and the screen.
In orderto obtain rapid switching of the voltage applied to the screen electrode (42), an EHT power supply has a thermionic valve (70) included within the display tube envelope (20) to shunt current to ground when switching from a high voltage to a low voltage. The anode (72) and cathode (76) of the valve (70) are connected respectively to the screen electrode (42) and the electron gun cathode (28). The valve (70) may be a triode or tetrode. A feedback arrangement is disclosed which enables the voltage on the screen electrode (42) to remain substantially constant in spite of variations in screen current. Figure 1 illiustrated shows an electromagnetically deflected display tube and Figure 2 (not shown) shows an embodiment of an apparatus having a flat, electrostatically deflected, display tube.-
公开(公告)号：EP0397244B1
公开(公告)日：1995-12-13
申请号：EP90201103.0
申请日：1990-05-02
发明人： Knapp, Alan George
CPC分类号： G06F3/044
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