TRANSFLECTIVE LIQUID CRYSTAL DISPLAY DEVICE
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Accused Products
Abstract
An IPS-mode transflective LCD device includes an array of pixels each including a reflective region and a transmissive region juxtaposed. The reflective region operates in a normally-white mode, and the transmissive region operates in a normally-black mode. A common data signal is supplied to the reflective region and transmissive region, whereas the common electrode signal in the transmissive region is an inverted signal of the common electrode signal in the reflective region, to thereby obtain similar gray-scale levels.
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Citations
29 Claims
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1-3. -3. (canceled)
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4. A transflective liquid crystal display (LCD) device comprising first and second polarizing films having polarizing axes perpendicular to one another, a liquid crystal (LC) layer interposed between said first polarizing film and said second polarizing film, said LC layer defining an array of pixels each including a reflective region and a transmissive region juxtaposed, wherein:
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LC molecules of said LC layer have a longer axis extending parallel to or normal to the polarization direction of the light incident onto said LC layer in said reflective region; and each of said pixels includes a pixel electrode receiving a pixel signal which is common between said reflective region and said transmissive region, a first common electrode receiving a first common signal which is common among said reflective regions of a plurality of said pixels, and a second common electrode receiving a second common signal which is common among said transmissive regions of said plurality of said pixels, wherein said pixel electrode includes a first pixel electrode in said reflective region and a second pixel electrode in said transmissive region, and each of said pixels is associated with a first switching device for coupling a data line to said first pixel electrode, and a second switching device for coupling said data line to said second pixel electrode, and wherein said reflective region includes therein a reflection film having a potential substantially equal to a median between a potential of said first pixel electrode and a potential of said first common electrode. - View Dependent Claims (5, 6, 7, 8)
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9-10. -10. (canceled)
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11. A transflective liquid crystal display (LCD) device comprising a liquid crystal (LC) layer defining an array of pixels arranged in a matrix, each of said pixels including therein a reflective region and a transmissive region juxtaposed, wherein:
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each of said pixels includes a first pixel electrode in said reflective region, and a second pixel electrode in said transmissive region; and each of said pixels is associated with a first switching device for coupling together said first electrode to and a data line supplying a data signal, and a second switching device for coupling together said second electrode and said data line, further comprising a first common electrode including a plurality of common electrodes connected in common and disposed in said reflective regions of a plurality of said pixels, and a second common electrode including a plurality of common electrodes connected in common and disposed in said transmissive regions of a plurality of said pixels, wherein said first and second switching devices are connected to a common data line.
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12. (canceled)
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13. A transflective liquid crystal display (LCD) device comprising a liquid crystal (LC) layer defining an array of pixels arranged in a matrix each of said pixels including therein a reflective region and a transmissive region juxtaposed, wherein:
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each of said pixels includes a first pixel electrode in said reflective region, and a second pixel electrode in said transmissive region; and each of said pixels is associated with a first switching device for coupling together said first electrode to and a data line supplying a data signal, and a second switching device for coupling together said second electrode and said data line, further comprising a first gate line for controlling said first switching devices and a second gate line for controlling said second switching devices, wherein said first and second switching devices are connected to said data line in common. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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14. A transflective liquid crystal display (LCD) device comprising a liquid crystal (LC) layer defining an array of pixels arranged in a matrix, each of said pixels including therein a reflective region and a transmissive region juxtaposed, wherein:
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each of said pixels includes a first pixel electrode in said reflective region, and a second pixel electrode in said transmissive region; and each of said pixels is associated with a first switching device for coupling together said first electrode to and a data line supplying a data signal, and a second switching device for coupling together said second electrode and said data line, wherein said data line for each column includes a first data line connected to said first switching devices, and a second data line connected to said second switching devices.
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22. A method for driving a transflective liquid crystal display device (LCD) including a reflective region and a transmissive region in each of pixels arranged in an array, said method comprising the steps of:
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generating a first data signal and a second data signal having therebetween a specific potential relationship; and applying said first data signal and said second data signal to said reflective region and said transmissive region, respectively. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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Specification