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    Tiled electronic display structure
    3.
    发明授权
    Tiled electronic display structure 失效
    平铺电子显示结构

    公开(公告)号：US06897855B1

    公开(公告)日：2005-05-24

    申请号：US09250324

    申请日：1999-02-16

    申请人： Dennis Lee Matthies ,  Roger Green Stewart ,  James Harold Atherton ,  Dennis J. Bechis ,  Heinz H. Busta ,  Zilan Shen

    发明人： Dennis Lee Matthies ,  Roger Green Stewart ,  James Harold Atherton ,  Dennis J. Bechis ,  Heinz H. Busta ,  Zilan Shen

    IPC分类号： G02F1/1347 ,  G02F1/1333 ,  G02F1/1335 ,  G09F9/30 ,  G09G3/20 ,  G09G3/22 ,  G09G3/30 ,  G09G3/32 ,  H01J29/74 ,  H01J29/76 ,  H01J31/12 ,  H01J31/15 ,  H01L25/16 ,  H01L27/15 ,  H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H05B33/12 ,  G09G5/00

    CPC分类号： H01L51/5281 ,  G02F1/13336 ,  G02F1/133512 ,  G09G3/3208 ,  G09G2300/026 ,  G09G2300/0426 ,  G09G2320/048 ,  H01L25/167 ,  H01L27/156 ,  H01L27/3293 ,  H01L51/5262 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/00

    摘要： A tiled display device is formed from display tiles having picture element (pixel) positions defined up to the edge of the tiles. Each pixel position has an organic light-emitting diode (OLED) active area which occupies approximately 25 percent of the pixel area. Each tile includes a memory which stores display data, and pixel driving circuitry which controls the scanning and illumination of the pixels on the tile. The pixel driving circuitry is located on the back side of the tile and connections to pixel electrodes on the front side of the tile are made by vias which pass through portions of selected ones of the pixel areas which are not occupied by the active pixel material. The tiles are to formed in two parts, an electronics section and a display section. Each of these parts includes connecting pads which cover several pixel positions. Each connecting pad makes an electrical connection to only one row electrode or column electrode. The connecting pads on the display section are electrically connected and physically joined to corresponding connecting pads on the electronics section to form a complete tile. Each tile has a glass substrate on the front of the tile. Black matrix lines are formed on the front of the glass substrate and the tiles are joined by mullions which have the same appearance as the black-matrix lines. Alternatively, the black matrix lines may be formed on the inside surface of an optical integrating plate and the tiles may be affixed to the integrating plate such that the edges of the joined tiles are covered by the black-matrix lines. A cathodoluminescent tile structure is formed from individual tiles that have multiple phosphor areas, a single emissive cathode and horizontal and vertical electrostatic deflecting grids which deflect the electron beam produced by the single cathode onto multiple ones of the phosphor areas.

    摘要翻译： 平铺显示装置由具有限定到瓦片边缘的像素（像素）位置的显示瓦片形成。 每个像素位置具有占据像素面积的约25％的有机发光二极管（OLED）有源区。 每个瓦片包括存储显示数据的存储器和控制瓦片上的像素的扫描和照明的像素驱动电路。 像素驱动电路位于瓦片的背面，并且与瓦片前侧的像素电极的连接通过穿过未被活性像素材料占据的所选像素区域的部分的通孔制成。 瓷砖要形成两部分，一个电子部分和一个显示部分。 这些部件中的每一个包括覆盖几个像素位置的连接焊盘。 每个连接焊盘只与一个行电极或列电极进行电连接。 显示部分上的连接焊盘电连接并物理地连接到电子部件上的对应的连接焊盘以形成完整的瓦片。 每个瓦片在瓦片的前面具有玻璃基底。 黑色矩阵线形成在玻璃基板的前面，并且瓦片通过具有与黑矩阵线相同外观的竖框连接。 或者，黑矩阵线可以形成在光学积分板的内表面上，并且可以将瓷砖固定到积分板，使得连接的瓷砖的边缘被黑矩阵线覆盖。 阴极发光瓦片结构由具有多个荧光体区域的单个瓦片形成，单个发射阴极和水平和垂直静电偏转网格，其将由单个阴极产生的电子束偏转到多个荧光体区域上。

    Contrast enhancement for an electronic display device by using a black matrix and lens array on outer surface of display
    4.
    发明授权
    Contrast enhancement for an electronic display device by using a black matrix and lens array on outer surface of display 有权

    公开(公告)号：US06476783B2

    公开(公告)日：2002-11-05

    申请号：US09250347

    申请日：1999-02-16

    申请人： Dennis Lee Matthies ,  Zilan Shen ,  Roger Green Stewart ,  James Harold Atherton

    发明人： Dennis Lee Matthies ,  Zilan Shen ,  Roger Green Stewart ,  James Harold Atherton

    IPC分类号： G09G332

    CPC分类号： H01L51/5284 ,  G02F1/13336 ,  G02F1/133512 ,  G09G3/3208 ,  G09G2300/026 ,  G09G2300/0426 ,  G09G2320/048 ,  H01L25/167 ,  H01L27/156 ,  H01L27/3281 ,  H01L27/3293 ,  H01L51/5262 ,  H01L51/5275 ,  H01L51/5281 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/00

    摘要： A display device having features which enhance the contrast of displayed images includes a pixel structure that defines an active pixel area and an inactive pixel area. The display device may be an emissive device such as an OLED or electroluminescent device, a transmissive device such as a liquid crystal light-valve device or a reflective device, such as a Bistable, Reflective Cholesteric (BRC) liquid crystal device. The ratio of the active pixel area to the total pixel area is less than 50 percent. The display device includes a transparent cover plate having a black matrix formed on the viewer side of the cover plate. The display device may be a tiled display in which case the black matrix is formed on an integrator plate to which the individual tiles are bound to form the complete display device. For reflective or emissive display materials, the display device includes an electronics section including a circuit board which provides driving signals for the pixels of the display device. The electronics section is bound to the display section by an adhesive. To provide a light-absorptive background for the active pixel elements, the circuit board or the adhesive are colored black. The individual pixel elements of the display device include four sub-pixel components separated by portions of the inactive pixel area, which four sub-pixel components together define the active area of the pixel. A lens system is provided on the viewer surface of the display to concentrate light emitted by the active area of the pixel elements into a smaller area, thus decreasing the aperture of the display. Areas between the lenses on the viewer surface of the display are coated with a black material to form a black matrix. A black material is selectively deposited on the front cover plate before applying the metal row electrodes to prevent the row electrodes from providing a reflective surface to the viewer.

    Sealing of large area display structures
    6.
    发明授权
    Sealing of large area display structures 有权
    密封大面积显示结构

    公开(公告)号：US06370019B1

    公开(公告)日：2002-04-09

    申请号：US09250329

    申请日：1999-02-16

    申请人： Dennis Lee Matthies ,  Zilan Shen ,  Roger Green Stewart ,  James Harold Atherton

    发明人： Dennis Lee Matthies ,  Zilan Shen ,  Roger Green Stewart ,  James Harold Atherton

    IPC分类号： H05K118

    CPC分类号： H01L27/3293 ,  G02F1/13336 ,  G02F1/133512 ,  G02F1/1345 ,  G09G3/3208 ,  G09G2300/026 ,  G09G2300/0426 ,  H01L25/167 ,  H01L27/156 ,  H01L27/3288 ,  H01L51/524 ,  H01L51/5246 ,  H01L51/5262 ,  H01L51/5281 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/00

    摘要： A plurality of sealing methods may be used either alone or in combination with each other to seal an electronic display structure. The display module includes a first substrate having a plurality of column electrodes. Each of a plurality of portions of a display material are coupled to one of the plurality of column electrodes and to one of a plurality of row electrodes. A pixel seal may be formed over the display material to encapsulate the display material. An area seal may be formed upon the first substrate to encapsulates the row electrodes, the column electrodes, and the portions of display material. A bead seal may be formed around the perimeter of the first substrate to couple it to a second substrate while sealing the internal display material. An edge seal may be formed by a banded structure spanning from the first substrate to the second substrate and extending around the perimeter of the substrates.

    摘要翻译： 多个密封方法可以单独使用或彼此组合使用以密封电子显示结构。 显示模块包括具有多个列电极的第一基板。 显示材料的多个部分中的每一个耦合到多个列电极中的一个和多个行电极中的一个。 可以在显示材料上形成像素密封以封装显示材料。 可以在第一基板上形成区域密封以封装行电极，列电极和显示材料的部分。 可以在第一基板的周边周围形成边缘密封，以将其密封到第二基板，同时密封内部显示材料。 边缘密封可以由跨越第一基底到第二基底的带状结构形成并围绕基底的周边延伸。

    Method and apparatus for calibrating display devices and automatically compensating for loss in their efficiency over time
    7.
    发明授权
    Method and apparatus for calibrating display devices and automatically compensating for loss in their efficiency over time 有权
    用于校准显示设备的方法和设备，并自动补偿其随时间的效率损失

    公开(公告)号：US06414661B1

    公开(公告)日：2002-07-02

    申请号：US09610159

    申请日：2000-07-05

    申请人： Zilan Shen ,  Dennis Lee Matthies ,  James H. Atherton ,  Roger Green Stewart

    发明人： Zilan Shen ,  Dennis Lee Matthies ,  James H. Atherton ,  Roger Green Stewart

    IPC分类号： G09G300

    CPC分类号： G09G3/3208 ,  G09G2300/026 ,  G09G2300/08 ,  G09G2310/027 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/048 ,  G09G2320/0693 ,  G09G2360/145

    摘要： A method and associated system that compensates for long-term variations in the light-emitting efficiency of individual organic light emitting diodes (OLEDs) in an OLED display device, calculates and predicts the decay in light output efficiency of each pixel based on the accumulated drive current applied to the pixel and derives a correction coefficient that is applied to the next drive current for each pixel. In one exemplary embodiment of the invention, the calculation is based the accumulated current that has been passed through the device. In another exemplary embodiment, the calculation is based on a difference in voltage across the pixel at two instants. The compensation system is best used after the display device has been calibrated to provide uniform light output. The present invention further provides a method for calibrating a display device comprising an array of individually adjustable discrete light emitting devices (pixels) using a camera having an array of radiation sensors or a single photodetector. According to this method, the camera captures respective images of substantially equal-sized first sub-areas and adjusts the driving current for each of said pixels within said first sub-areas to achieve a desired light output. Next, the camera captures images of a plurality of second sub-areas, each of the second sub-areas including multiple ones of the first sub-areas second-level sub-areas are adjusted such that each of the first-level sub areas provide substantially equal light output. In an alternative embodiment, each of the first level sub-areas overlaps and, after adjusting a first sub-area to a desired brightness level, the invention adjusts the pixels in each overlapping sub-area to have the same brightness as the overlapping pixels.

    摘要翻译： 补偿OLED显示装置中的各个有机发光二极管（OLED）的发光效率的长期变化的方法和相关系统基于累积的驱动来计算和预测每个像素的光输出效率的衰减 电流被施加到像素并且导出施加到每个像素的下一个驱动电流的校正系数。 在本发明的一个示例性实施例中，该计算基于已经通过设备的累积电流。 在另一示例性实施例中，该计算基于两个时刻的像素上的电压差。 在校准显示设备以提供均匀的光输出之后，补偿系统最好使用。 本发明还提供了一种校准显示装置的方法，该显示装置包括使用具有辐射传感器阵列或单个光电检测器的相机的单独调节的分立发光装置（像素）的阵列。 根据该方法，摄像机拍摄大致相等尺寸的第一子区域的各个图像，并且调整所述第一子区域内的每个所述像素的驱动电流以实现期望的光输出。 接下来，摄像机拍摄多个第二子区域的图像，调整包括多个第一子区域二级子区域中的每一个的第二子区域，使得每个第一级子区域提供 基本相等的光输出。 在替代实施例中，每个第一级子区域重叠，并且在将第一子区域调整到期望的亮度水平之后，本发明调整每个重叠子区域中的像素具有与重叠像素相同的亮度。

    Thin-film transistor circuitry with reduced sensitivity to variance in transistor threshold voltage
    9.
    发明授权
    Thin-film transistor circuitry with reduced sensitivity to variance in transistor threshold voltage 有权
    薄膜晶体管电路对晶体管阈值电压的变化灵敏度降低

    公开(公告)号：US06307322B1

    公开(公告)日：2001-10-23

    申请号：US09473504

    申请日：1999-12-28

    申请人： Robin Mark Adrian Dawson ,  Zilan Shen ,  Alfred Charles Ipri ,  Roger Green Stewart ,  Michael Gillis Kane

    发明人： Robin Mark Adrian Dawson ,  Zilan Shen ,  Alfred Charles Ipri ,  Roger Green Stewart ,  Michael Gillis Kane

    IPC分类号： G09G330

    CPC分类号： H01L27/12 ,  H01S5/042

    摘要： A circuit design technique polysilicon thin-film transistor (TFT) circuitry produces circuits that are relatively less sensitive to threshold variations among the TFT's than circuits designed using conventional techniques. The circuit is designed such that thin-film transistors that are sensitive to threshold variations are made larger than other thin-film transistors in the circuitry to minimize threshold variations among similar transistors implemented in the circuit. In one embodiment, a pixel structure for an active matrix display device implemented in polysilicon includes two transistors, a select transistor and a drive transistor. The drive transistor in the pixel structure is a thin film metal oxide silicon (MOS) transistor that includes a gate to source capacitance sufficient to hold an electrical potential which keeps the transistor in a conducting state for an image field interval. One embodiment of the pixel structure includes only the select transistor and the drive transistor. The pixel storage capacitance is entirely realized by the gate to source capacitance of the drive transistor. Another embodiment of the pixel structure includes a capacitor which is much smaller than the capacitor of a conventional active matrix pixel structure. This capacitor holds the pixel in a non-illuminated state when the drive transistor is turned off. This pixel structure may be used with any display technology that uses an active matrix and stores image data on a capacitance in the pixel, including without limitation, organic light emitting diodes, electroluminescent devices, and inorganic light emitting diodes.

    摘要翻译： 电路设计技术多晶硅薄膜晶体管（TFT）电路产生对于TFT之间的阈值变化比对使用常规技术设计的电路相对较不敏感的电路。 电路被设计成使得对阈值变化敏感的薄膜晶体管比在电路中的其它薄膜晶体管大得多，以最小化在电路中实现的类似晶体管之间的阈值变化。 在一个实施例中，用于在多晶硅中实现的有源矩阵显示装置的像素结构包括两个晶体管，一个选择晶体管和一个驱动晶体管。 像素结构中的驱动晶体管是薄膜金属氧化物硅（MOS）晶体管，其包括足以保持电位的栅极 - 源极电容，其将晶体管保持在用于图像场间隔的导通状态。 像素结构的一个实施例仅包括选择晶体管和驱动晶体管。 像素存储电容完全由驱动晶体管的栅极到源极电容来实现。 像素结构的另一实施例包括比常规有源矩阵像素结构的电容器小得多的电容器。 当驱动晶体管关闭时，该电容器将像素保持在非照亮状态。 该像素结构可以与使用有源矩阵的任何显示技术一起使用，并且将图像数据存储在像素中的电容上，包括但不限于有机发光二极管，电致发光器件和无机发光二极管。