Displays with organic light-emitting diode backlight structures
First Claim
1. A display, comprising:
- organic light-emitting diode backlight structures that generate backlight for the display;
display layers that include a layer of liquid crystal material that controls emission of the backlight from the display;
a polarizer layer that forms a layer of the organic light-emitting diode backlight structures, wherein the polarizer layer includes a circular polarizer and at least one additional polarizer, wherein the display layers comprise a display substrate interposed between the polarizer layer and the layer of liquid crystal material; and
at least one optical film interposed between the display substrate and the polarizer layer.
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Accused Products
Abstract
An electronic device may be provided with a display. The display may include a liquid crystal display cell and an organic light-emitting diode backlight unit. The liquid crystal display cell may include a color filter layer, a liquid crystal layer, and a thin-film transistor layer. The organic light-emitting diode backlight unit may include organic emissive material formed on a substrate. The organic emissive material may generate backlight for liquid crystal display cell. Display pixels in the liquid crystal display cell may control the emission of the backlight from the display. The organic light-emitting diode backlight unit may be attached to the display using adhesive, laminated to a polarizer layer of the display cell, or may be integrated into the liquid crystal display cell. The backlight unit may include conductive vias or bent extended edge portions for coupling the backlight unit to control circuitry.
24 Citations
28 Claims
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1. A display, comprising:
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organic light-emitting diode backlight structures that generate backlight for the display; display layers that include a layer of liquid crystal material that controls emission of the backlight from the display; a polarizer layer that forms a layer of the organic light-emitting diode backlight structures, wherein the polarizer layer includes a circular polarizer and at least one additional polarizer, wherein the display layers comprise a display substrate interposed between the polarizer layer and the layer of liquid crystal material; and at least one optical film interposed between the display substrate and the polarizer layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display, comprising
a plurality of display layers that include a liquid crystal layer and a thin-film-transistor layer; -
organic light-emitting diode backlight structures that are laminated to a surface of the plurality of display layers, wherein the organic light-emitting diode backlight structures provide backlight to the plurality of display layers; at least one conductive via that electrically couples the organic light-emitting diode backlight structures to the thin-film-transistor layer; and a polarizer layer interposed between the thin-film transistor layer and the organic light-emitting diode backlight structures, wherein the at least one conductive via passes through the polarizer layer. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A display, comprising:
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a substrate having thin-film-transistor circuitry formed thereon; organic emissive material on the substrate; a layer of liquid crystal material, wherein the organic emissive material is interposed between the substrate and the layer of liquid crystal material; thin-film transistor electrodes interposed between the layer of liquid crystal material and the organic emissive material; a planarization layer interposed between the thin-film transistor electrodes and the organic emissive material; a polarizer interposed between the organic emissive material and the planarization layer; and at least one conductive via that couples conductive structures on the substrate to the thin-film-transistor electrodes. - View Dependent Claims (18, 19, 20, 21)
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22. A display comprising:
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a liquid crystal display cell comprising an array of display pixels; and an organic light-emitting diode backlight unit having a plurality of backlight pixels that share a common organic light-emitting diode layer and that provide white backlight to the entire array of display pixels, wherein each backlight pixel provides white backlight to a single corresponding display pixel in the array of display pixels, wherein each backlight pixel includes a plurality of color backlight sub-pixels and wherein, in combination, the plurality of color backlight sub-pixels in each backlight pixel are configured to generate the white backlight having a color temperature that is within a predetermined range of a desired color temperature. - View Dependent Claims (23, 24)
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25. A display comprising:
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a liquid crystal display cell having an array of display pixels, wherein the liquid crystal display cell comprises a thin-film transistor layer having thin-film transistors on a substrate and a color filter layer with a plurality of color filter elements that have associated transmission peak wavelengths; an organic light-emitting diode backlight unit having an organic light-emitting diode layer comprising thin-film transistors on an additional substrate that receive control signals from the thin-film transistor layer in the liquid crystal display cell, wherein the organic light-emitting diode layer includes a plurality of backlight pixels that provide backlight to the entire array of display pixels, wherein each backlight pixel includes a plurality of color backlight sub-pixels and wherein, in combination, the plurality of color backlight sub-pixels are configured to generate backlight having a spectrum that includes emission peaks at emission peak wavelengths that correspond to the transmission peak wavelengths of the color filter elements; and a polarizer interposed between the liquid crystal display cell and the organic light-emitting diode layer, wherein the thin-film transistors on the additional substrate receive the control signals from the thin-film transistor layer in the liquid crystal display cell through a via that extends through the polarizer. - View Dependent Claims (26, 27, 28)
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Specification