公开(公告)号：US06624592B1

公开(公告)日：2003-09-23

申请号：US10025084

申请日：2001-12-18

Applicant: James C. Dunphy ,  Donald J. Elloway

Inventor： James C. Dunphy ,  Donald J. Elloway

IPC: G09G310

CPC classification number: G09G3/22 ,  H01J9/44 ,  H01J2209/0223

Abstract: A method of removing contaminant particles from faceplates in newly fabricated field emission displays so that a uniform distribution of contaminants is achieved at the emitter sites of the display. During the initial operation of a field emission dislay device contaminants are removed from the display faceplate by electron induced desorption. The emission current profile at the emitter sites is selected so that the distribution of readsorbed contaminants is equalized. The variations in current emission compensate for shadowing effects due to spacer walls to produce a uniform readsorption distribution. The emitter sites may driven using an animated contrast image at a constant current for the display.

Abstract translation: 在新制造的场发射显示器中从面板去除污染物颗粒的方法，使得在显示器的发射器位置处实现污染物的均匀分布。 在场致发射装置的初始操作期间，通过电子诱导解吸从显示面板去除污染物。 选择发射极位置处的发射电流分布，使得吸附的污染物的分布相等。 电流发射的变化补偿由间隔壁产生的阴影效应以产生均匀的吸收分布。 发射器位置可以使用用于显示的恒定电流的动画对比度图像来驱动。

公开(公告)号：US06512335B1

公开(公告)日：2003-01-28

申请号：US09896402

申请日：2001-06-28

Applicant: James C. Dunphy ,  William J. Cummings ,  Colin D. Stanners ,  Lawrence S. Pan

Inventor： James C. Dunphy ,  William J. Cummings ,  Colin D. Stanners ,  Lawrence S. Pan

IPC: G09G310

CPC classification number: G09G3/22 ,  G09G2310/066 ,  H01J9/44 ,  H01J2209/0223

Abstract: Methods for performing cathode burn-in with respect to an FED display that avoid display non-uniformities near and around the spacer wall structures. In a first method, the anode is floated or receives a negative voltage with respect to the electron emitter. A positive voltage is then applied to the focus waffle structure with respect to the electron emitter. The cathode is then energized thereby preventing emitted electrons from escaping the focus well. Under these conditions, cathode burn-in conditioning can occur but electrons are energetically forbidden from hitting the anode or the spacer walls except for a small region near the focus waffle. Under the second method, the anode is grounded or allowed to float. A negative bias is applied to the focus waffle. This causes electrons to be collected at the M2 layer of the gate. Electrons are energetically forbidden from hitting any portion of the tube except the M2 layer. Under either method, no electrons hit the spacer walls and therefore display non-uniformities near and around the spacer wall structures are avoided.

Abstract translation: 相对于避免在间隔壁结构附近和周围显示不均匀性的FED显示器进行阴极老化的方法。 在第一种方法中，阳极漂浮或接收相对于电子发射器的负电压。 然后将正电压相对于电子发射器施加到焦点楔形结构。 然后使阴极通电，从而防止发射的电子逸出。 在这些条件下，可能会发生阴极老化调节，但除了靠近焦点华夫饼附近的小区域外，电子被大力禁止撞击阳极或间隔壁。 在第二种方法下，阳极接地或允许浮动。 对焦点华夫饼施加负偏压。 这导致电子在门的M2层被收集。 除了M2层之外，电子被大力禁止撞击管的任何部分。 在任一方法下，没有电子撞击间隔壁，因此避免了在间隔壁结构附近和周围显示不均匀性。

公开(公告)号：US06462484B2

公开(公告)日：2002-10-08

申请号：US09796868

申请日：2001-02-28

Applicant: James C. Dunphy ,  Ronald L. Hansen ,  Brian E. Lindberg ,  Jerome M. Truppa ,  Donald J. Elloway ,  Duke K. Amaniampong

Inventor： James C. Dunphy ,  Ronald L. Hansen ,  Brian E. Lindberg ,  Jerome M. Truppa ,  Donald J. Elloway ,  Duke K. Amaniampong

IPC: G09G310

CPC classification number: H01J9/44 ,  G09G3/22 ,  G09G2310/066 ,  H01J2209/0223

Abstract: A circuit and method for turning-on and turning-off elements of an field emission display (FED) device to protect against emitter electrode and gate electrode degradation. The circuit includes control logic having a sequencer which in one embodiment can be realized using a state machine. Upon power-on, the control logic sends an enable signal to a high voltage power supply that supplies voltage to the anode electrode. At this time a low voltage power supply and driving circuitry are disabled. Upon receiving a confirmation signal from the high voltage power supply, the control logic enables the low voltage power supply which supplies voltage to the driving circuitry. Upon receiving a confirmation signal from the low voltage power supply, or optionally after expiration of a predetermined time period, the control logic then enables the driving circuitry which drives the gate electrodes and the emitter electrodes which make up the rows and columns of the FED device. Upon power down, the control logic first disables the low voltage power supply, then the high voltage power supply. The above may occur upon each time the FED is powered-on and powered-off during the normal operational use of the display. By so doing, embodiments of the present invention reduce emitter electrode and gate electrode degradation by restricting electron emission from the emitter electrode directly to the gate electrode.

Abstract translation: 用于场致发射显示器（FED）器件的导通和关断元件的电路和方法，以防止发射极电极和栅极电极劣化。 电路包括具有定序器的控制逻辑，在一个实施例中可以使用状态机来实现。 上电时，控制逻辑向向阳极提供电压的高电压电源发送使能信号。 此时，低电压电源和驱动电路被禁用。 在从高电压电源接收到确认信号时，控制逻辑使能向驱动电路提供电压的低压电源。 当接收到来自低电压电源的确认信号时，或者可选地，在预定时间段期满之后，控制逻辑使能驱动构成FED装置的行和列的栅电极和发射电极的驱动电路 。 断电时，控制逻辑首先禁用低压电源，然后禁用高压电源。 上述可能在每次FED在显示器的正常操作使用期间通电和断电时发生。 通过这样做，本发明的实施例通过将发射电极的电子发射直接限制到栅电极来减少发射极电极和栅极电极的劣化。