CONTROLLING POLARIZATION FOR LIQUID CRYSTAL DISPLAYS
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Abstract
Certain embodiments of liquid crystal display protection panels and liquid crystal display protection panel integrals have low reflection for outdoor applications. Various embodiments also have the advantage of being able to provide increased contrast and brightness for certain convenient viewing directions for outdoor viewers wearing polarized sunglasses.
64 Citations
53 Claims
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1-24. -24. (canceled)
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25. A polarized functional part module for integrating with a liquid crystal display, said functional part module defining vertical and horizontal axes, said functional part module having a module rear surface that may be positioned forward a front surface of said liquid crystal display and a module front surface through which light from said liquid crystal display may exit to a viewer, said module comprising:
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an EMI shielding functional part; and a linear polarizer, PB, wherein said module front surface comprises an anti-reflection treatment. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A polarized functional part module for integrating with a liquid crystal display, said functional part module defining vertical and horizontal axes, said functional part module having a module rear surface that may be positioned forward a front surface of said liquid crystal display and a module front surface through which light from said liquid crystal display may exit to a viewer, said module comprising:
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a polarized functional part comprising a linear polarizer PB and one of a capacitive type of touch panel, a saw touch panel, a near field image touch panel, and an IR touch panel; a retarder layer RB rearward said polarizer PB, said retarder layer RB having a retardance of about (2n+1)λ
/4 and a slow axis RBX;a retarder layer RA rearward said retarder layer RB, said retarder RA having a retardance of about (2m+1)λ
/4 and a slow axis RAX; andan anti-reflection treatment on said module front surface, wherein said slow axis RBX is set at an angle other than 0 or 90 degree with respect to said horizontal axis. - View Dependent Claims (43, 44, 45)
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46. A polarized functional part module for integrating with a liquid crystal display, said functional part module defining vertical and horizontal axes, said functional part module having a module rear surface that may be positioned forward a front surface of said liquid crystal display and a module front surface through which light from said liquid crystal display may exit to a viewer, said module comprising:
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a polarized functional part comprising a linear polarizer PB and one of a capacitive type of touch panel, a saw touch panel, a near field image touch panel, and an IR touch panel; a retarder layer RB rearward said polarizer, said retarder layer RB having a retardance of about (2n+1)λ
/4 and a slow axis RBX;a retarder layer RA rearward said retarder layer RB, said retarder RA having a retardance of about (2m+1)λ
/4 and a slow axis RAX; andan anti-reflection treatment on said module front surface, wherein said slow axis RBX is approximately perpendicular to or parallel to said slow axis RAX. - View Dependent Claims (47, 48, 49)
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50. A reflective functional part integrated display comprising:
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a liquid crystal display module defining vertical and horizontal axes and having a module front surface that can selectively output linearly polarized light oriented along a first linear polarization axis, said liquid crystal display module comprising, a liquid crystal cell, a linear polarizer PA, and a light module; a polarized reflective functional part forward said liquid crystal display module, said polarized reflective functional part having a rear surface and comprising a second linear polarizer PB having a second linear polarization axis, and comprising at least two of a touch panel, an EMI shield, an infrared filter and an LCD heater; and a display front surface through which light from said light module exits, wherein said display front surface comprises an anti-reflection treatment. - View Dependent Claims (51, 52, 53)
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Specification