Liquid crystal display
OwnerZvi Yanivinventor
Life of this patent
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Abstract
An improved efficiency liquid crystal display device (10) includes at least two pairs of electrode disposed above and below, and on two sides of each display pixel (12). Each pair of electrodes is capable of applying an electrical field to a layer of liquid crystal material disposed therebetween. The applied electrical fields cause the liquid crystal materials to switch from a first to a second optical state corresponding to an opaque and transparent state. The result is a display device having higher optical efficiencies, and faster display response times. Multiple intermediate optical states are possible by applying varying amounts of electrical charge to the two pairs of electrodes at the same time. The desired optical effects are accomplished by employing in-plane-switching to said pairs of electrodes.
Claims13
A flat panel display device including a plurality of display pixel elements, each said pixel element comprising four electrodes, said display device comprising:
- a first display substrate having at least a first display electrode for each pixel element disposed thereon;
- a second display substrate having at least a second display electrode for each pixel element disposed thereon;
- a third and a fourth pixel element electrodes disposed between said first and second display substrates and electrically insulated from said first and second electrodes;
- and
- a layer of liquid crystal material disposed between said first and second display electrodes and said third and fourth display electrodes.
Dependencies are inferred from the claim text.