US 5,771,039 A · Direct view display device integration techniques

Abstract

Display device integration techniques and structures are disclosed that improve display performance, usability, and reduce system cost. The improved designs and techniques involve direct view display devices, pen/stylus input devices, Integrated Circuit (IC) driver units (74), backlight devices (41) and fiberoptic faceplates (3, 6). The types of display devices, included in the inventions, may involve Cathode Ray Tube (CRT) displays, Liquid Crystal Displays (LCD), as well as other type of displays, including flat panel displays. The pen/stylus input device consists of a pen/stylus (5), a sensor/emitter film (4), and pen encoding electronics (20). One or more fiberoptic faceplates may be included. The inside surface of the fiberoptic faceplate may be reticulated, having reflective structures (28) and phosphor dots (12) applied. Distributed Index planar micro lens arrays may be incorporated instead of fiberoptic faceplates. The backlight device may include several light sources (41A, 41B), a fiber backplate (45) and several pig tail regions (56, 58). A new micro tip semiconductor tunneling technology is disclosed for the interconnection of two or more IC units or display sub-panels, without actual physical conductor-to-conductor contact.

Claims13

Dependent claims

An optical micro lens array sheet for use with a display device, wherein the micro lens array sheet provides improved viewing characteristics and wherein the display device defines a multiplicity of pixels and viewing screen, the optical micro lens array sheet comprising:

a. a first planar micro lens array layer made of a multiplicity of transparent micro lenses fabricated into a substrate;
b. a second planar micro lens array layer made of a multiplicity of transparent micro lenses fabricated into a substrate, wherein each micro lens of the first and second array layers are placed adjacent with their plane surfaces facing each other roughly aligned, such that each micro lens pair acts as an equivalent convex-wnvex converging micro lens;
c. said micro lenses pairs are adapted so that the second array layer has a focal length on the image side defining an image distance, and the first array layer has a focal length on the object side, defining an object distance that is greater than the thickness of the first array layer;
and
d. said first and second planar micro lens array layers together act as an equivalent single micro lens array sheet to be placed over the display viewing screen with its object distance defined by the focal lengths of the micro lens pairs on the object side adapted to be roughly equal to the distance to the pixels of the display device.

2 more elements

An apparatus for display of information having a display screen with a planar micro lens array sheet placed over the display screen, the display apparatus comprising:

a. a display device defining a multiplicity of pixels and a transparent viewing screen;
b. a first planar micro lens array sheet made of transparent micro lenses fabricated into a substrate, which is placed over the surface of the display device viewing screen;
c. a second planar micro lens array sheet made of transparent micro lenses fabricated into a substrate, wherein the plane surfaces the micro lenses of the first and second array sheets are placed facing each other and are roughly aligned, such that each micro lens pair acts an equivalent convex-convex converging micro lens;
d. said micro lens pairs are adapted so that one side has a focal length defining its image distance, and the other side has a focal length that is greater than the thickness of the first array sheet;
and
e. said first and second planar micro lens array sheet combination is placed over the display screen with object distance roughly equal to the distance to the pixels of the display device.

3 more elements

Dependencies are inferred from the claim text.

Direct view display device integration techniques

Life of this patent

Direct view display device integration techniques

Life of this patent

Abstract

Claims13