公开(公告)号：US4696860A

公开(公告)日：1987-09-29

申请号：US780583

申请日：1985-09-26

申请人： David L. Epperson

发明人： David L. Epperson

IPC分类号： H01H11/00 ,  G06F3/033 ,  G06F3/041 ,  G06F3/045 ,  H01H13/02 ,  H01H13/702 ,  H01H13/703 ,  H01H13/712 ,  B32B19/04 ,  B32B5/16

CPC分类号： G06F3/045 ,  H01H13/702 ,  H01H13/703 ,  H01H2209/038 ,  H01H2209/06 ,  H01H2209/082 ,  H01H2231/004 ,  Y10T428/252 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/31616 ,  Y10T428/31645

摘要： Fine particles, preferably of brown alumina (approximately 96% Al.sub.2 O.sub.3), are disposed between closely spaced and normally parallel surfaces of two adjacent transparent layers, such as are typically found in a touch sensitive overlay (TSO). The particles are preferably of a size within the range 3-100 microns, and are distributed in a density preferably in the range 300-3,000 particles per square inch, so that the larger particles are in simultaneous contact with both the parallel surfaces. Local pressure on a TSO panel with this distribution of particles of non-uniform size allows operation of the panel without the generation of distracting Newton rings between the surfaces contacting the particles. These particles may be conveniently sprayed onto either of the parallel surfaces in suspension with a fluid carrier that evaporates to leave the particles adhering to the sprayed surface.

摘要翻译： 细颗粒，优选棕色氧化铝（约96％的Al 2 O 3）被布置在两个相邻的透明层的紧密间隔和平行平行的表面之间，例如通常存在于触敏覆盖层（TSO）中。 颗粒的尺寸优选在3-100微米的范围内，并且分布密度优选为每平方英寸300-3,000颗颗粒，使得较大的颗粒同时与两个平行表面接触。 在具有不均匀尺寸的颗粒分布的TSO面板上的局部压力允许操作面板，而不会在与颗粒接触的表面之间产生分散的牛顿环。 这些颗粒可以方便地喷洒在悬浮液中的任一平行表面上，其中流体载体蒸发以使颗粒附着在喷涂表面上。

公开(公告)号：US4965421A

公开(公告)日：1990-10-23

申请号：US269749

申请日：1988-11-08

申请人： David L. Epperson

发明人： David L. Epperson

IPC分类号： H01H13/702 ,  H01H13/703

CPC分类号： H01H13/702 ,  H01H13/703 ,  H01H2209/038 ,  H01H2209/06 ,  H01H2209/082 ,  H01H2211/01 ,  Y10T428/252

摘要： Fine particles, of predetermined composition and sized to be within a predetermined size range, are deposited on, and thereafter adhere in random distribution to, one of two adjacent surfaces, serving to keep the surfaces uniformly spaced apart except when an external force causes them to make local contact. The particles are conveniently applied in the form of a spray of a suspension of particles and a fluid carrier material, preferably water with alumina particles, or an aqueous solution of a chloride salt of an alkaline earth metal such as calcium, potassium or sodium when small glass beads are used as the particles. Brown alumina particles (approximately 96% Al.sub.2 O.sub.3) in the size range 3-50 microns, so utilized, are found well suited as parallel surface spacers in optically transparent touch sensitive overlay (TSO) panels. Particle distribution densities in the range 300-1,000 particles per inch are satisfactory for TSO panels, with the higher particle density requiring a higher actuation pressure to be applied.

摘要翻译： 预定组成并且尺寸设定在预定尺寸范围内的细颗粒沉积在两个相邻表面之一上并随后粘附到两个相邻表面之一中，用于保持表面均匀间隔开，除非外力使它们 进行本地联系。 颗粒方便地以颗粒和流体载体材料的悬浮液的喷雾形式施用，优选水为氧化铝颗粒，或碱土金属氯化物盐如钙，钾或钠的水溶液，当小 玻璃珠用作颗粒。 发现如此利用的尺寸范围为3-50微米的褐色氧化铝颗粒（约96％的Al 2 O 3）非常适合作为光学透明触敏覆盖层（TSO）面板中的平行表面间隔物。 对于TSO面板，每英寸300-1,000个颗粒的颗粒分布密度是令人满意的，其中更高的颗粒密度需要施加更高的致动压力。