FLAT PANEL DISPLAY DEVICE
First Claim
1. A flat panel display device comprising in order a first waveguide, a transition waveguide and a second waveguide and display panel, wherein said second waveguide and display panel has a display surface and a substantially wedged shape and wherein the surface profile of said second waveguide and display panel compensates the distortions in the displayed image generated by the light path of incident image rays in said first waveguide and said transition waveguide.
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Abstract
The invention discloses a method to design the optical profile of a flat panel display device comprising a first waveguide, a transition waveguide and a waveguide/display, wherein the waveguide/display has a display surface and a substantially wedged shape, comprising the steps of: determining the optical profile of the first waveguide and the transition waveguide; selecting major light paths/angles, calculating to obtain the surface profile of the sections in the waveguide/display corresponding to the respectively selected light paths/angles, to compensate the distortions in the displayed image.
39 Citations
35 Claims
- 1. A flat panel display device comprising in order a first waveguide, a transition waveguide and a second waveguide and display panel, wherein said second waveguide and display panel has a display surface and a substantially wedged shape and wherein the surface profile of said second waveguide and display panel compensates the distortions in the displayed image generated by the light path of incident image rays in said first waveguide and said transition waveguide.
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15. A method to determine the optical profile of a flat panel display device comprising in order a first waveguide, a transition waveguide and a second waveguide and display panel, wherein said second waveguide and display panel has a display surface and a substantially edged shape, said method comprising the steps of:
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determining optical profile of said first waveguide and said transition waveguide; selecting major incident angles of lights, and calculating to obtain surface profile of sections in said second waveguide and display panel corresponding respectively to said selected light angles, to compensate distortions in displayed image generated by said selected lights'"'"' paths in said first waveguide. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method for determination of the surface profile of a flat panel display device comprising a first waveguide, a transition waveguide and a second waveguide and display panel, comprising the steps of:
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determining optical profile of said first waveguide and said transition waveguide; determining a desired range of exit angles for said image rays; selecting a first incident light angle and calculating optical paths of incoming image rays with said first incident angles in said first waveguide and said transition waveguide to obtain surface profile of a first section of said second waveguide and display panel most adjacent to said transition waveguide, such that image rays of said first incident angle exit said display surface with said desired range of exit angles; selecting a second incident light angle for said incoming image rays and calculating to obtain surface profile of a second section of said second waveguide and display panel following said first section; repeating previous step until said selected incident light angles are all calculated; and determining surface profile of said fist waveguide, said transition waveguide and said second waveguide and display panel according to results so obtained. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A method to prepare a flat panel display device comprising in order a first waveguide, a transition waveguide and a second waveguide and display panel, wherein said second waveguide and display panel has a display surface and a substantially edged shape, said method comprising the steps of:
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determining optical profile of said flat panel display device comprising the substeps of; determining optical profile of said first waveguide and said transition waveguide; selecting major incident angles of lights, and calculating to obtain surface profile of sections in said second waveguide and display panel corresponding respectively to said selected light angles, to compensate distortions in displayed image generated by said selected lights'"'"' paths in said first waveguide; and preparing said flat panel display device using optical profile information so determined. - View Dependent Claims (29, 30, 31, 32)
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33. A method for the preparation of a flat panel display device comprising a first waveguide, a transition waveguide and a second waveguide and display panel, comprising the steps of:
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determining optical profile of said flat panel display device using the substeps of; determining optical profile of said first waveguide and said transition waveguide; determining a desired range of exit angles for incoming image rays; selecting a first incident light angle for said incoming image rays and calculating optical paths of said incoming image rays with said first incident angles in said first waveguide and said transition waveguide to obtain surface profile of a first section of said second waveguide and display panel most adjacent to said transition waveguide, such that said image rays of said first incident angle exit said display surface with said desired exit angles; selecting a second incident light angle for said incoming image rays and calculating to obtain surface profile of a next section of said second waveguide and display panel following said first section; repeating previous step until all said selected incident light angles are calculated; and determining surface profile of said fist waveguide, said transition waveguide and said second waveguide and display panel according to results so obtained; and preparing said flat panel display device using optical profile information so obtained. - View Dependent Claims (34, 35)
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Specification