Liquid crystal display device and polarizing plate with a condensing element
First Claim
1. A liquid crystal display device, comprising a rear light source device, a rear polarizing plate, a liquid crystal cell including liquid crystal molecules that are substantially vertically aligned during black display, and a front polarizing plate, which are provided in the stated order, wherein:
- an absorption axis of a polarizer of the rear polarizing plate is perpendicular to an absorption axis of a polarizer of the front polarizing plate; and
condensed light in which a half-value angle in a direction perpendicular to the absorption axis of the polarizer of the rear polarizing plate is smaller than a half-value angle in a direction parallel to the absorption axis of the polarizer of the rear polarizing plate enters the rear polarizing plate.
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Abstract
A liquid crystal display device according to the present invention includes a rear light source device, a rear polarizing plate, a liquid crystal cell including liquid crystal molecules that are substantially perpendicularly aligned during black display, and a front polarizing plate, which are provided in the stated order, wherein: an absorption axis of a polarizer of the rear polarizing plate is perpendicular to an absorption axis of a polarizer of the front polarizing plate; and condensed light in which a half-value angle in a direction perpendicular to the absorption axis of the polarizer of the rear polarizing plate is smaller than a half-value angle in a direction parallel to the absorption axis of the polarizer of the rear polarizing plate enters the rear polarizing plate. According to the present invention, a liquid crystal display device having an excellent front contrast ratio, and a polarizing plate with a condensing element for realizing the liquid crystal display device having the excellent front contrast ratio may be provided.
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Citations
8 Claims
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1. A liquid crystal display device, comprising a rear light source device, a rear polarizing plate, a liquid crystal cell including liquid crystal molecules that are substantially vertically aligned during black display, and a front polarizing plate, which are provided in the stated order, wherein:
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an absorption axis of a polarizer of the rear polarizing plate is perpendicular to an absorption axis of a polarizer of the front polarizing plate; and condensed light in which a half-value angle in a direction perpendicular to the absorption axis of the polarizer of the rear polarizing plate is smaller than a half-value angle in a direction parallel to the absorption axis of the polarizer of the rear polarizing plate enters the rear polarizing plate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A polarizing plate with a condensing element, comprising a condensing element for converting incident light into condensed light, and a polarizing plate,
wherein a half-value angle of the condensed light in a direction perpendicular to an absorption axis of a polarizer of the polarizing plate is smaller than a half-value angle in a direction parallel to an absorption axis of a polarizer of the polarizing plate.
Specification