Transflective Lcd Display Device
First Claim
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1. A transflective liquid crystal display (LCD) device, comprising:
- a liquid crystal display cell including an active layer (210);
a backlight system (240) for backlighting of said display cell, a partial mirror (224) for reflecting ambient light, provided with apertures (226) for passing light originating from the backlight system (240), and polarizing means comprising a patterned polarizer (222) between the active layer (210) and the backlight system (240), said patterned polarizer (222) extending substantially over an area of said apertures (226) in said partial mirror (224).
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Abstract
The invention relates to a transflective LCD incorporating a partial mirror (224) as the transflector. In the transmissive display mode, light from a backlight system (240) passes apertures (226) in the transflector (224). According to the invention, recycling of light to the backlight system (240) is improved by substantially only polarizing light that passes an aperture. This is achieved by means of a patterned polarizer (222) extending over the apertures in the partial mirror.
103 Citations
7 Claims
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1. A transflective liquid crystal display (LCD) device, comprising:
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a liquid crystal display cell including an active layer (210);
a backlight system (240) for backlighting of said display cell, a partial mirror (224) for reflecting ambient light, provided with apertures (226) for passing light originating from the backlight system (240), and polarizing means comprising a patterned polarizer (222) between the active layer (210) and the backlight system (240), said patterned polarizer (222) extending substantially over an area of said apertures (226) in said partial mirror (224). - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification