| Pixel Qi Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20100225857 | BACKLIGHT RECIRCULATION IN TRANSFLECTIVE LIQUID CRYSTAL DISPLAYS - Techniques are provided to recycle light from a backlight unit that is otherwise blocked in a reflective part of a pixel in a transflective LCD. The light is redirected into a transmissive part of the pixel and hence enhances light efficiency and luminance of the pixel. The techniques can be used in a transflective LCD that transmits light in a circularly polarized state, or a linearly polarized state. | 09-09-2010 |
| 20100225855 | NORMALLY BLACK TRANSFLECTIVE LIQUID CRYSTAL DISPLAYS - Techniques are provided for normally black multi-mode LCDs using homogeneously aligned liquid crystal materials which optical birefringence is electrically controllable. A light recycling/redirecting film may be added between a BLU and a nearby polarization layer to recycle backlight from a reflective part of an LCD unit structure into a transmissive part of the same structure to increase the optical output efficiency of the BLU. Electrodes for the transmissive part and the reflective part may be separately driven in various operating modes. Benefits include high transmittance, high reflectance, wide view angles, improved optical recycling efficiency, and low manufacturing costs. | 09-09-2010 |
| 20100020276 | TRANSFLECTIVE DISPLAY WITH WHITE TUNING - In an embodiment, a multi-mode LCD comprises pixels, each comprising sub-pixels, each sub-pixel comprising a first polarizing layer; a second polarizing layer; a first substrate layer and an oppositely oriented second substrate layer, the first and second substrate layers are between the first and second polarizing layers; a liquid crystal material between the first and second substrate layers; a first reflective layer that is adjacent to the first substrate layer and comprises at least one opening that forms a transmissive part of the sub-pixel and wherein a remainder of the first reflective layer that forms a reflective part of the sub-pixel; a first filter of a first color opposite to and covering the transmissive part with an area larger than that of the transmissive part; a second filter of a second color opposite to and partially covering the reflective part, wherein the second color is different from the first color. | 01-28-2010 |
| 20100020054 | TRIPLE MODE LIQUID CRYSTAL DISPLAY - In an embodiment, a system comprises an LCD comprising a plurality of pixels each comprising a transmissive part; a reflective part; and a latched driving circuit. The driving circuit comprises a transmissive section comprising a transmissive data input coupled to the transmissive part of the pixel, and is configured to drive a transmissive data value from the transmissive data input and to set the transmissive part to a transmissive display state based on the transmissive data value; a reflective section comprising a reflective data input (independent of the transmissive data input) coupled to the reflective part of the pixel, and is configured to drive a reflective data value from the reflective data input and to set the reflective part to a reflective display state based on the reflective data value. | 01-28-2010 |
