WEDGE BACKLIGHT WITH DIFFRACTION GRATING
First Claim
Patent Images
1. A display panel system, comprising:
- a display panel comprising a plurality of pixels;
an optical wedge disposed optically upstream of the display panel such that light emerging from the optical wedge backlights the display panel;
one or more light sources configured to introduce light into the optical wedge; and
a diffraction grating disposed optically between the one or more light sources and the display panel.
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Abstract
Embodiments are disclosed herein that relate to backlighting a display panel comprising color filters via an optical wedge. For example, one disclosed embodiment provides a display panel comprising a plurality of pixels, and also comprising an optical wedge disposed optically upstream of the display panel such that light emerging from the light output interface backlights the display panel. The display system further comprises one or more light sources configured to introduce light into the optical wedge, and a diffraction grating disposed optically between the light sources and the display panel.
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Citations
20 Claims
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1. A display panel system, comprising:
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a display panel comprising a plurality of pixels; an optical wedge disposed optically upstream of the display panel such that light emerging from the optical wedge backlights the display panel; one or more light sources configured to introduce light into the optical wedge; and a diffraction grating disposed optically between the one or more light sources and the display panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A liquid crystal display system, comprising:
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a liquid crystal display panel comprising a plurality of pixels, each pixel comprising a plurality of color filters; an optical wedge disposed optically upstream of the liquid crystal display panel such that light emerging from the optical wedge backlights the liquid crystal display panel; a plurality of white light sources each configured to introduce white light into the optical wedge; a diffraction grating located optically between the optical wedge and the color filters of the liquid crystal display panel; and a lens array located optically between the diffraction grating and the color filters of the display panel. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method of operating a display system, comprising:
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introducing white light from a light source into an optical wedge; emitting the white light from the optical wedge; turning the white light toward a display panel; diffracting the white light to produce a plurality of bands of colored light; and passing the plurality of bands of colored light through the display panel such that the plurality of bands of colored light pass through corresponding color filters of the display panel. - View Dependent Claims (20)
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Specification