Samsung Electronics Co., Ltd.

Jin-Hyuk Yun

Kee-Han Uh

Dae-Ho Choo

Ho-Min Kang

Akira Hirai

Min-Soo Park

Young-Joo Park

Eung-Sang Lee

A phase delay element includes a brightness enhancement layer intermediate a reflection layer and an artificial light. The brightness enhancement layer is defined by a first surface and an opposite second surface. The first surface faces the reflection layer. A first light from the artificial light is incident on the second surface. A phase of the first light is delayed by about 1/4 phase (&#x3bb;/4) so that a second light is emitted from the first surface toward the reflection layer. The second light is reflected from the reflection layer so that a third light is emitted from the reflection layer toward the first surface. A phase of the third light is delayed by about 1/4 phase (&#x3bb;/4) so that a fourth light is emitted from the second surface. Therefore, a portion of the artificial light, which is reflected from the reflection layer, is recycled to improve a luminance of an LCD apparatus.

Phase delay element for transmissive and reflective type liquid crystal display

In a method of transforming light, an optical film for performing the method and a display device having the optical film, an optical film includes an anisotropic film, an isotropic film, a &#x3bb;/4 phase difference film and a &#x3bb;/2 phase difference film. The anisotropic film having a first refractive index with respect to a first ray and a second refractive index with respect to a second ray. A refractive index of the isotropic film is substantially identical to the first refractive index. The &#x3bb;/4 phase difference film delays wavelengths of the first and second rays by about &#x3bb;/4. The &#x3bb;/2 phase difference film delays the wavelength of the second ray by about &#x3bb;/2.

Method of transforming a light beam, optical film for performing the method, and display device having the optical film

A display apparatus includes first and second display panels, a driver chip and a first flexible printed circuit. The first display panel displays a first image in response to first driving signals. The second display panel displays a second image in response to second driving signals. The driver chip is disposed between the first and second display panels, and the driver chip provides the first and second driving signals to the first and second display panels. The first flexible printed circuit is disposed between the first and second display panels, and the first flexible printed circuit applies the second driving signal generated from the driver chip to the second display panel. Therefore, an electrical resistance is reduced, so that a signal delay is prevented to enhance display qualities.

Display apparatus

A phase delay element includes a brightness enhancement layer intermediate a reflection layer and an artificial light. The brightness enhancement layer is defined by a first surface and an opposite second surface. The first surface faces the reflection layer. A first light from the artificial light is incident on the second surface. A phase of the first light is delayed by about &#xbc; phase (&#x3bb;/4) so that a second light is emitted from the first surface toward the reflection layer. The second light is reflected from the reflection layer so that a third light is emitted from the reflection layer toward the first surface. A phase of the third light is delayed by about &#xbc; phase (&#x3bb;/4) so that a fourth light is emitted from the second surface. Therefore, a portion of the artificial light, which is reflected from the reflection layer, is recycled to improve a luminance of an LCD apparatus.

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Seoul, South Korea

Jin-Hyuk Yun