Liquid crystal display apparatus
First Claim
1. A liquid crystal display apparatus, comprising:
- a liquid crystal display panel comprising a plurality of liquid crystal capacitors, a plurality of pixel units, an upper alignment film layer and a lower alignment film layer, wherein the liquid crystal impedance is larger than or equal to 1013 ohm/cm, and an alignment-film impedance of the liquid crystal display panel is larger than or equal to ten times of the liquid crystal impedance; and
a driving circuit comprising a display refresh rate, the driving circuit being configured for casting the image information on the liquid crystal display panel;
a plurality of pixel driving circuits, disposed corresponding to the pixel units, the pixel driving circuits comprising a plurality of storage capacitors, wherein the storage capacitors respectively correspond to the liquid crystal capacitors, a capacitance of the storage capacitors is larger than or equal to ten times of that of the liquid crystal capacitors,wherein each of the driving circuits comprises two or more thin film transistor switches, a dual-gate thin film transistor or a lightly doped drain thin film transistor corresponding to each pixel unit, and an off-state leakage current of the driving circuit is less than or equal to 10−
12 ampere,wherein each of the plurality of pixel units of the liquid crystal display panel at least corresponds to one of the liquid crystal capacitors and one of the storage capacitors, each pixel unit comprises a first electrode layer, a second electrode layer and a third electrode layer sequentially disposed on a lower substrate, the second electrode layer comprises an extension layer of a drain layer, the third electrode layer comprises a pixel electrode layer, dielectric layer materials are respectively disposed between the first electrode layer and the second electrode layer, and between the second electrode layer and the third electrode layer, the first electrode layer comprises a gate layer and/or a common electrode conductive layer, and the extension layer of the drain layer is connected with the pixel electrode layer, and/or the common electrode conductive layer is electrically connected with a common transparent electrode layer of a upper substrate, wherein the liquid crystal capacitor is formed between the common transparent electrode layer and the pixel electrode layer of the lower substrate, and the storage capacitor is disposed between the common electrode conductive layer of the first electrode layer and the extension layer of the second electrode layer, and/or between the common electrode conductive layer of the first electrode layer and the pixel electrode layer, and/or between the gate layer of the first electrode layer and the pixel electrode layer.
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Abstract
The invention discloses a liquid crystal display apparatus and a pixel element design thereof. The liquid crystal display apparatus includes a register, a liquid crystal display panel, a driving circuit, a dynamic frequency adjustment unit and a control circuit. The liquid crystal display panel includes a plurality of liquid crystal capacitors and a plurality of pixel units. The driving circuit includes a plurality of storage capacitors corresponding to the liquid crystal capacitors. A capacitance of the storage capacitors far exceeds a capacitance of the liquid crystal capacitors. The driving circuit casts the image information on the liquid crystal display panel. The dynamic frequency adjustment unit computes and judges based on an image characteristic classification of the image information, so as to generate a display mode control signal dynamically.
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Citations
14 Claims
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1. A liquid crystal display apparatus, comprising:
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a liquid crystal display panel comprising a plurality of liquid crystal capacitors, a plurality of pixel units, an upper alignment film layer and a lower alignment film layer, wherein the liquid crystal impedance is larger than or equal to 1013 ohm/cm, and an alignment-film impedance of the liquid crystal display panel is larger than or equal to ten times of the liquid crystal impedance; and a driving circuit comprising a display refresh rate, the driving circuit being configured for casting the image information on the liquid crystal display panel; a plurality of pixel driving circuits, disposed corresponding to the pixel units, the pixel driving circuits comprising a plurality of storage capacitors, wherein the storage capacitors respectively correspond to the liquid crystal capacitors, a capacitance of the storage capacitors is larger than or equal to ten times of that of the liquid crystal capacitors, wherein each of the driving circuits comprises two or more thin film transistor switches, a dual-gate thin film transistor or a lightly doped drain thin film transistor corresponding to each pixel unit, and an off-state leakage current of the driving circuit is less than or equal to 10−
12 ampere,wherein each of the plurality of pixel units of the liquid crystal display panel at least corresponds to one of the liquid crystal capacitors and one of the storage capacitors, each pixel unit comprises a first electrode layer, a second electrode layer and a third electrode layer sequentially disposed on a lower substrate, the second electrode layer comprises an extension layer of a drain layer, the third electrode layer comprises a pixel electrode layer, dielectric layer materials are respectively disposed between the first electrode layer and the second electrode layer, and between the second electrode layer and the third electrode layer, the first electrode layer comprises a gate layer and/or a common electrode conductive layer, and the extension layer of the drain layer is connected with the pixel electrode layer, and/or the common electrode conductive layer is electrically connected with a common transparent electrode layer of a upper substrate, wherein the liquid crystal capacitor is formed between the common transparent electrode layer and the pixel electrode layer of the lower substrate, and the storage capacitor is disposed between the common electrode conductive layer of the first electrode layer and the extension layer of the second electrode layer, and/or between the common electrode conductive layer of the first electrode layer and the pixel electrode layer, and/or between the gate layer of the first electrode layer and the pixel electrode layer. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A liquid crystal display apparatus, comprising:
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a liquid crystal display panel comprising a plurality of liquid crystal capacitors, a plurality of pixel units, an upper alignment film layer and a lower alignment film layer, wherein the liquid crystal impedance is larger than or equal to 1013 ohm/cm, and an alignment-film impedance of the liquid crystal display panel is larger than or equal to ten times of the liquid crystal impedance; and a driving circuit comprising a display refresh rate, the driving circuit being configured for casting the image information on the liquid crystal display panel; a plurality of pixel driving circuits, disposed corresponding to the pixel units, the pixel driving circuits comprising a plurality of storage capacitors, wherein the storage capacitors respectively correspond to the liquid crystal capacitors, a capacitance of the storage capacitors is larger than or equal to ten times of that of the liquid crystal capacitors, wherein each of the driving circuit comprises two or more thin film transistor switches, a dual-gate thin film transistor or a lightly doped drain thin film transistor corresponding to each pixel unit, and an off-state leakage current of the driving circuit is less than or equal to 10−
12 ampere,wherein each of the pixel units of the liquid crystal display panel at least corresponds to one of the liquid crystal capacitors and one of the storage capacitors, each pixel unit comprises a gate layer of a first electrode layer, a second electrode layer and a common electrode layer of a third electrode layer sequentially disposed on the lower substrate, a dielectric layer material is respectively disposed there between, the second electrode layer comprises a source layer, a drain layer and a pixel electrode layer connected with the drain layer, wherein the pixel electrode layer of the second electrode layer and the common electrode layer of the third electrode layer are of a comb-shaped or grid-shaped electrode architecture, or a curving comb-shaped or grid-shaped electrode architecture, and no common electrode layer is disposed on the upper substrate, wherein the liquid crystal capacitor is formed in the curving electric field between the pixel electrode layer of the second electrode layer and the common electrode layer of the third electrode layer, and the storage capacitor is disposed between the pixel electrode layer of the second electrode layer and the common electrode layer of the third electrode layer. - View Dependent Claims (8, 9, 10)
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11. A liquid crystal display apparatus, comprising:
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a liquid crystal display panel comprising a plurality of liquid crystal capacitors, a plurality of pixel units, an upper alignment film layer and a lower alignment film layer, wherein the liquid crystal impedance is larger than or equal to 1013 ohm/cm, and an alignment-film impedance of the liquid crystal display panel is larger than or equal to ten times of the liquid crystal impedence; and a driving circuit comprising a display refresh rate, the driving circuit being configured for casting the image information on the liquid crystal display panel; a plurality of pixel driving circuits, disposed corresponding to the pixel units, the pixel driving circuits comprising a plurality of storage capacitors, wherein the storage capacitors respectively correspond to the liquid crystal capacitors, a capacitance of the storage capacitors is larger than or equal to ten times of that of the liquid crystal capacitors, wherein each of the driving circuit comprises two or more thin film transistor switches, a dual-gate thin film transistor or a lightly doped drain thin film transistor corresponding to each pixel unit, and an off-state leakage current of the driving circuit is less than or equal to 10−
12 ampere,wherein each of the pixel units of the liquid crystal display panel at least corresponds to one of the liquid crystal capacitors and one of the storage capacitors, each pixel unit comprises a first electrode layer and a second electrode layer sequentially disposed on the lower substrate, a dielectric layer material is respectively disposed there between, the first electrode layer comprises a gate layer and a common electrode layer, the second electrode layer comprises a source layer, a drain layer and a pixel electrode layer connected with the drain layer, the common electrode layer of the first electrode layer and the pixel electrode layer of the second electrode layer are of a comb-shaped or grid-shaped electrode architecture, or a curving comb-shaped or grid-shaped electrode architecture, and no common electrode layer is disposed on the upper substrate, wherein the liquid crystal capacitor is formed in the in plane switching field between the common electrode layer of the first electrode layer and the pixel electrode layer of the second electrode layer, and the storage capacitor is disposed between the common electrode layer of the first electrode layer and the pixel electrode layer of the second electrode layer. - View Dependent Claims (12, 13, 14)
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Specification