公开(公告)号：US3600060A

公开(公告)日：1971-08-17

申请号：US3600060D

申请日：1968-02-23

申请人： NCR CO

发明人： CHURCHILL DONALD ,  CARTMELL JAMES V

IPC分类号： B41M5/28 ,  C09K19/54 ,  G02F1/1333 ,  G02F1/1334 ,  G09G3/00 ,  H01J29/10 ,  H01J29/14 ,  G02F1/28

CPC分类号： C09K19/544 ,  B41M5/281 ,  G02F1/1333 ,  G02F1/1334 ,  G09G3/001 ,  H01J29/10 ,  H01J29/14 ,  Y10T428/2987

摘要： This disclosure is directed to articles of manufacture, chiefly display devices, containing minute ''''naked'''' droplets or inclusions of cholesteric liquid crystal material in a substantially continuous polymeric matrix, said liquid crystal material changing color or shade of color not only upon application of an electric potential but also upon removal of the field. The image produced has a comparable outline to that of the path of the electric field. Three chromatic states are evident, the normal color (before the electric potential is applied), the color given off when the electric field is applied, and the color observed when the electric field is removed. All three chromatic states are readily discernible from one another. The polymer matrix protects the cholesteric liquid crystal droplets from aging and enhances electric field behavior because the third chromatic state (electric potential removed) has a greater longevity with the matrix-bound material versus unprotected material of identical composition but no polymeric matrix. Other advantages are also discussed.

公开(公告)号：US3585381A

公开(公告)日：1971-06-15

申请号：US3585381D

申请日：1969-04-14

申请人： NCR CO

发明人： HODSON THEODORE L ,  CARTMELL JAMES V ,  CHURCHILL DONALD ,  JONES JOE W

IPC分类号： C09D11/00 ,  B01J13/02 ,  B41M5/28 ,  C09K19/36 ,  C09K19/54 ,  G01K11/12 ,  G02F1/133 ,  G02F1/1333 ,  G11C13/04 ,  G01N21/00

CPC分类号： G02F1/132 ,  B41M5/281 ,  C09K19/544 ,  G11C13/048 ,  Y10S428/913 ,  Y10T428/239 ,  Y10T428/249997

摘要： The present disclosure is directed to articles of manufacture, e.g., display devices, having an encapsulated liquid-crystal member of enhanced color purity, color contrast and visual resolution due to an overlying essentially transparent top layer having a substantially smooth exterior surface. This essentially transparent layer has an index of refraction which approximates that of the capsule cell wall material and any polymeric or other binder used in conjunction with the encapsulated liquid crystals in the encapsulated liquid crystal layer or member.

公开(公告)号：US3916420A

公开(公告)日：1975-10-28

申请号：US46741774

申请日：1974-05-06

申请人： NCR CO

发明人： BROWN ROBERT W ,  CARTMELL JAMES V ,  CHURCHILL DONALD ,  KRESCH ALAN J

IPC分类号： B41J2/445 ,  G02F1/13 ,  G06C11/02 ,  G06C11/04 ,  G09F9/35 ,  G01D15/10 ,  B41B13/00

CPC分类号： G06C11/02 ,  G06C11/04

摘要： The present invention is directed to a printer and display system wherein the images from an optical character generator are directed along two separate optical paths. A planar light-to-heat transducer element is positioned in one of the optical paths to intercept the generated character images for thermal printing a permanent reproduction of the intercepted characters. A visual display is positioned in the other optical path to intercept the generated character images for forming viewable images of the generated character images.

摘要翻译： 本发明涉及一种打印机和显示系统，其中来自光学字符发生器的图像被引导沿着两个单独的光学路径。 平面光热传感器元件位于光路之一中，以拦截所生成的字符图像，用于热打印永久重放被截取的字符。 视觉显示器位于另一光路中以截取所生成的字符图像，以形成所生成的字符图像的可视图像。

公开(公告)号：US3674338A

公开(公告)日：1972-07-04

申请号：US3674338D

申请日：1970-08-05

申请人： NCR CO

发明人： CARTMELL JAMES V ,  CHURCHILL DONALD

IPC分类号： C09K19/48 ,  C09K19/52 ,  G03B21/62 ,  G03B21/56

CPC分类号： C09K19/48 ,  C09K19/52 ,  G03B21/62 ,  Y10T428/1055

摘要： A REAR PROJECTION SCREEN IS DISCLOSED WHEREIN ORGANIC NEMATIC MESOMORPHIC COMPOUNDS, I.E., LIQUID CRYSTALS, ARE EMPLOYED. THE LIQUID CRYSTALS HAVE A THRESHOLD ELECTRIC FIELD WHICH WHEN EXCEEDED CAUSES THE LIQUID CRYSTALS TO SCATTER LIGHT. A THIN FILM OF THE LIQUID CRYSTAL IN THE LIGHT SCATTERING MODE CAN BE USED FOR A SCREEN IN A REAR PROJECTION SYSTEM.

公开(公告)号：US3700306A

公开(公告)日：1972-10-24

申请号：US3700306D

申请日：1971-09-22

申请人： NCR CO

发明人： CARTMELL JAMES V ,  CHURCHILL DONALD ,  KOOPMAN DONALD E

IPC分类号： G03B9/08 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1337 ,  G09F9/35 ,  G02F1/16

CPC分类号： G02F1/133784 ,  G02F1/133345 ,  G02F1/133553

摘要： An electro-optic shutter employing nematic liquid crystal material is disclosed. The electrodes of the shutter of this invention are protected with a thin overcoat of an insulating material such as glass. This thin overcoat essentially prevents rapid electrode failure due to conduction of current through the liquid crystal material.

摘要翻译： 公开了一种采用向列型液晶材料的电光快门。 本发明的活门的电极用诸如玻璃的绝缘材料的薄的外涂层保护。 这种薄的外涂层基本上防止了由于通过液晶材料的电流传导引起的快速电极故障。

公开(公告)号：US3697297A

公开(公告)日：1972-10-10

申请号：US3697297D

申请日：1970-10-22

申请人： NCR CO

发明人： CHURCHILL DONALD ,  CARTMELL JAMES V ,  MILLER ROBERT E

IPC分类号： C09K19/36 ,  C09K19/54 ,  G01K11/16

CPC分类号： C09K19/36 ,  C09K19/544 ,  Y10T428/2984

摘要： A TEMPERATURE-RESPONSIVE DISPLAY DEVICE OR COMPOSITION, COMPRISING MESOMORPHIC ("LIQUID CRYSTAL") MATERIALS(S) CONTAINED IN MINUTE CAPSULES AS THE TEMPERATURERESPONSIVE COMPONENT, IS PROVIDED. THE MINUTE CAPSULES, WHEN PLACED IN HEAT-CONDUCTIVE RELATION WITH A HEAT SOURCE TOGETHER WITH AN ASSOCIATED THERMAL GRADIENT PATTERN TO BE DISPLAYED, EXHIBIT AN IRIDENSCENCE INDICATIVE OF A CERTAIN CHARACTERISTIC TEMPERATURE RANGE, WHICH TEMPERATURE RANGE VARIES ACCORDING TO THE TYPES AND MIXTURES OF MESOMORPHIC MATERIALS AFFORDS PHYSICAL AND CHEMICAL PROTECTION FROM VARIOUS KINDS OF DEGRADATION AND ALLOWS THEIR USE IN PRACTICAL AND EFFICIENT THERMAL-GRADIENT DISPLAY SYSTEMS.

公开(公告)号：US3578844A

公开(公告)日：1971-05-18

申请号：US3578844D

申请日：1968-02-23

申请人： NCR CO

发明人： CHURCHILL DONALD ,  CARTMELL JAMES V

IPC分类号： B41M5/28 ,  C09K19/54 ,  G02F1/1333 ,  G02F1/1334 ,  G09G3/00 ,  H01J29/10 ,  H01J29/14 ,  G02F1/34

CPC分类号： H01J29/10 ,  B41M5/28 ,  C09K19/544 ,  G02F1/1333 ,  G02F1/1334 ,  G09G3/001 ,  H01J29/14 ,  Y10T428/249997 ,  Y10T428/2984 ,  Y10T428/2987

摘要： This disclosure is directed to articles of manufacture, chiefly display devices, containing encapsulated cholesteric liquid crystals which change color or shade of color not only upon application of an electric potential but also upon removal of the field. The image produced has a comparable outline to that of the path of the electric field. Three chromatic states are evident, the normal color (before the electric potential is applied), the color given off when the electric field is applied, and the color observed when the electric field is removed. All three chromatic states are readily discernible from one another. The encapsulation of the cholesteric liquid crystal provides an unusual advantage regarding electric field behavior because the third chromatic state (electric potential removed) has a much greater longevity with the encapsulated material versus unencapsulated material of identical composition. Other advantages are also discussed.