Liquid crystal display panel with micro-lens array and liquid crystal display device
AssigneeSharp Kabushiki Kaisha
InventorNaru Usukura
Life of this patent
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Abstract
A liquid crystal display panel includes a liquid crystal panel having a plurality of pixels; a microlens array provided on a light-incident side of the liquid crystal panel; a first polarizing plate and a first optical compensation element provided on a light-outgoing side of the liquid crystal panel; and a second polarizing plate and a second optical compensation element provided on a light-incident side of the microlens array. The retardation of the first optical compensation element along the thickness direction is greater than the retardation of the second optical compensation element along the thickness direction.
Claims6
A liquid crystal display device comprising:
- a liquid crystal panel having a plurality of pixels;
- a microlens array provided on a light-incident side of the liquid crystal panel;
- a first polarizing plate and a first optical compensation element provided on a light-outgoing side of the liquid crystal panel;
- a second polarizing plate and a second optical compensation element provided on a light-incident side of the microlens array,
- a backlight provided on a light-incident side of the second polarizing plate, the backlight having higher directivity along a first direction than along a second direction which is orthogonal to the first direction, and wherein,
- the first optical compensation element comprises a positive substantially monoaxial phase difference film having substantial retardation in an in-plane direction but substantially no retardation in a thickness direction, and a negative substantially monoaxial viewing angle compensation film having a retardation of from 200-300 nm in the thickness direction and substantially no retardation in an in-plane direction;
- the second optical compensation element comprises a positive substantially monoaxial phase difference film having substantial retardation in an in-plane direction but substantially no retardation in a thickness direction, but no viewing angle compensation film having a retardation of from 200-300 nm in the thickness direction and substantially no retardation in an in-plane direction is provided on the light-incident side of the microlens array, so that a retardation of the first optical compensation element along the thickness direction is greater than a retardation of the second optical compensation element along the thickness direction.
Dependencies are inferred from the claim text.