EP2706397A1 - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
- Publication number
- EP2706397A1 EP2706397A1 EP11865403.7A EP11865403A EP2706397A1 EP 2706397 A1 EP2706397 A1 EP 2706397A1 EP 11865403 A EP11865403 A EP 11865403A EP 2706397 A1 EP2706397 A1 EP 2706397A1
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- EP
- European Patent Office
- Prior art keywords
- liquid crystal
- electrode
- crystal panel
- pixel
- common
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 135
- 239000003990 capacitor Substances 0.000 claims abstract description 71
- 239000010409 thin film Substances 0.000 claims description 18
- 230000003321 amplification Effects 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 abstract description 5
- 239000011159 matrix material Substances 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000003071 parasitic effect Effects 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3666—Control of matrices with row and column drivers using an active matrix with the matrix divided into sections
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/043—Compensation electrodes or other additional electrodes in matrix displays related to distortions or compensation signals, e.g. for modifying TFT threshold voltage in column driver
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than one capacitor
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0876—Supplementary capacities in pixels having special driving circuits and electrodes instead of being connected to common electrode or ground; Use of additional capacitively coupled compensation electrodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
Definitions
- the present invention relates to the field of display technology, in particular a liquid crystal screen.
- the liquid crystal display is a flat screen that is currently in widespread use.
- the working principle of the liquid crystal panel is to change the arrangement shape of the liquid crystal molecules in the liquid crystal layer with the voltage difference between two ends of the liquid crystal layer to change the light transmittance of the liquid crystal layer and then display the image together with the light source supplied from the back light module.
- FIG. 1 Fig. 12 is a schematic diagram of the circuit of the liquid crystal panel in the prior art.
- the liquid crystal panel has a liquid crystal panel 110, a common voltage generator 15, a scanner driver 17, and a data driver 16.
- the liquid crystal panel 110 has a plurality of scanning lines 9 and a plurality of data lines 14.
- the scan lines 9 and the data lines 14 cross each other in isolation and define a plurality of pixel units 100 arrayed in a matrix.
- each pixel unit 100 a thin film transistor 10, a liquid crystal capacitor 12 and a storage capacitor 13 are arranged.
- the liquid crystal capacitor 12 has a pixel electrode 121, a common electrode 122, and an intermediate liquid crystal layer disposed opposite to each other.
- the storage capacitor 13 has pixel electrodes 121, a storage electrode 132, and insulating material (not shown) between the pixel electrodes and the storage electrode, which are disposed opposite to each other.
- parasitic capacitors 11 are usually formed on the data lines 14, the common electrode 122, and the liquid crystal layer between the data lines and the common electrode.
- the thin film transistor 10 has a gate electrode, a source electrode, and a drain electrode.
- the gate electrode is connected to the scanning line 9, and the source electrode is connected to the data line 14, and the drain electrode is connected to the pixel electrode 121.
- the scanner driver 17 outputs a plurality of scanner signals to each scanning line 9 in the order.
- the scanner driver 17 outputs the scanner signal on one line scan line 9, the thin film transistor 10 connected to the scan line 9 is switched.
- the data driver 16 a plurality of gray level voltages to a plurality of data lines 14, so that the gray scale voltage is charged through the source and drain electrodes of the switched thin film transistor 10 on the pixel electrode 121.
- the common voltage generator 15 provides the common electrode 222 and the storage electrode 132 with the common voltage Vcom. After the gray scale voltage has been charged to the pixel electrode 121 via the source and drain electrodes of the switched thin film transistor 10 because of a voltage difference between the common voltage and the gray scale voltage across the liquid crystal capacitor 12, the liquid crystal deviates, so that the required gray level according to FIG the deviation angle of the liquid crystal is displayed.
- the function of the storage capacitor 13 is to maintain the gray scale voltage on the pixel electrode 121 so that the gray scale voltage is maintained at the pixel electrode 121 until the next gray scale voltage arrives.
- the arrangement of the pixel units 100 in a region in one embodiment of the liquid crystal panel is shown.
- the area is a pixel area of 3 * 3, A stands for the pixel units 100 in the middle, and B stands for the pixel units in the neighborhood.
- the voltage of the common electrode 122 of the pixel units B fluctuates, after which the voltage of the common electrode 122 of the bright pixel units A also fluctuates.
- the voltage of the common electrode 122 of the pixel units A will also fluctuately decrease.
- the main purpose of the present invention is to provide a liquid crystal panel for reducing the coupling noise and improving the display quality of the liquid crystal panel.
- the present invention provides a liquid crystal panel having a liquid crystal panel, the liquid crystal panel having a plurality of pixel units arranged in a matrix. Within each pixel unit is disposed a liquid crystal capacitor, the liquid crystal capacitor has a pixel electrode and a common electrode, which are arranged opposite to each other.
- the liquid crystal panel further includes a pixel voltage regulator, the pixel voltage regulator having a plurality of compensation capacitors and a gain amplifier. Within each pixel unit, an above compensation capacitor is arranged, and the compensation capacitor has an above pixel electrode and a back-coupling common electrode, which are arranged opposite to each other.
- the input of the amplification amplifier is connected to the common electrode, the output is connected to the feedback common electrode.
- the liquid crystal panel has a plurality of scan lines and a plurality of data lines, and a plurality of scan lines and a plurality of data lines traverse in an isolated manner to define the pixel units.
- Each pixel unit has a thin film transistor.
- the thin film transistor has a gate electrode, a source electrode and a drain electrode. The gate electrode is connected to a scan line, the source electrode is connected to a data line, and the drain electrode is connected to the pixel electrode.
- each pixel unit further has a storage capacitor, and the storage capacitor has an above pixel electrode and a storage electrode disposed opposite to each other.
- the storage electrode and the above common electrode receive the same common voltage.
- the liquid crystal panel further comprises a common voltage generator, the common voltage generator provides the common voltage to the storage electrode and the common electrode.
- the liquid crystal panel further comprises a scanner driver, the scanner driver provides the scanning signals with the scanner signal.
- the liquid crystal panel further comprises a data driver, the data driver provides the grayscale voltage to the data lines.
- the capacitance value of the compensation capacitor is twice as large as the capacitance value of the liquid crystal capacitor.
- the liquid crystal panel may be a liquid crystal panel whose size is equal to or smaller than 32 inches.
- the present invention further provides a liquid crystal panel having a liquid crystal panel, the liquid crystal panel having a plurality of pixel units arranged in a matrix. Within each pixel unit is disposed a liquid crystal capacitor, the liquid crystal capacitor has a pixel electrode and a common electrode, which are arranged opposite to each other.
- the liquid crystal panel further has a pixel voltage regulator, the pixel voltage regulator receives the common-voltage feedback from the common electrode, and adjusts the voltage of the pixel electrode according to the common-rail feedback voltage.
- each pixel unit further includes a storage capacitor, the storage capacitor having an above pixel electrode and a storage electrode disposed opposite to each other.
- the storage electrode and the above common electrode receive the same common voltage.
- the pixel voltage regulator comprises a plurality of compensation capacitors and two amplification amplifiers.
- an above compensation capacitor is arranged, and the compensation capacitor has an above pixel electrode and a back-coupling common electrode, which are arranged opposite to each other.
- the liquid crystal screen consists of two vertically symmetrical parts.
- the input of a gain amplifier is connected to the common electrode of each pixel unit of the upper part, and the output is connected to the feedback common electrode of the compensation capacitor in each pixel unit of the upper part.
- the input of the other amplification amplifier is connected to the common electrode of each pixel unit of the lower part, and the output is connected to the feedback common electrode of the compensation capacitor in each pixel unit of the lower part.
- the liquid crystal panel has a plurality of scan lines and a plurality of data lines, and a plurality of scan lines and a plurality of data lines traverse in an isolated manner to define the pixel units.
- Each pixel unit has a thin film transistor.
- the thin film transistor has a gate electrode, a source electrode and a drain electrode. The gate electrode is connected to a scan line, the source electrode is connected to a data line, and the drain electrode is connected to the pixel electrode.
- the liquid crystal panel further comprises a common voltage generator, the common voltage generator provides the common voltage to the storage electrode and the common electrode.
- the liquid crystal panel further comprises a scanner driver, the scanner driver provides the scanning signals with the scanner signal.
- the liquid crystal panel further comprises a data driver, the data driver provides the grayscale voltage to the data lines.
- the capacitance value of the compensation capacitor is twice as large as the capacitance value of the liquid crystal capacitor.
- the liquid crystal panel may be a liquid crystal panel whose size is larger than 32 inches.
- the size of the liquid crystal panel is 37 inches or 40 inches.
- the liquid crystal panel of the present invention further comprises a pixel voltage regulator.
- the pixel voltage regulator may receive the common-rail feedback voltage from the common electrode and adjust the voltage of the pixel electrode according to the common-rail feedback voltage so that the voltage of the pixel electrode changes in synchronism with the common voltage, after which the fluctuation of the common voltage Vcom is equalized.
- the coupling noise phenomenon is effectively improved, and the display quality of the liquid crystal panel is improved.
- FIG. 3 Fig. 12 is the schematic diagram of the circuit of the first embodiment of the liquid crystal display according to the present invention.
- the liquid crystal panel has a liquid crystal panel 210, a common voltage generator 25, a pixel voltage regulator, a scanner driver 27, and a data driver 26.
- the pixel voltage regulator has a plurality of compensation capacitors 28 and a gain amplifier 29.
- the liquid crystal panel may include a liquid crystal panel whose size is equal to or less than 32 inches.
- the liquid crystal panel 210 has a plurality of scan lines 30 and a plurality of data lines 24.
- the scan lines 30 and the data lines 24 traverse in an isolated manner so that a plurality of pixel units 200 arranged in a matrix are defined.
- a thin film transistor 20 Within each pixel unit 200, a thin film transistor 20, a liquid crystal capacitor 22, a storage capacitor 23 and an above compensation capacitor 28 are arranged.
- the liquid crystal capacitor 22 has a pixel electrode 221, a common electrode 222, and an intermediate liquid crystal layer (not shown) disposed opposite to each other.
- the storage capacitor 23 has a pixel electrode 221, a storage electrode 232, and insulating material (not shown) between the pixel electrodes and the storage electrode, which are disposed opposite to each other.
- the compensation capacitor 28 has a pixel electrode 221, a feedback common electrode 282 and insulating material (not shown) between the pixel electrodes and the feedback common electrode, which are disposed opposite to each other.
- parasitic capacitors 21 are usually formed on the data lines 24, the common electrode 222, and the liquid crystal layer between the data lines and the common electrode.
- the input of a gain amplifier 29 is connected via feedback line 31 to the common electrode 222 of each pixel unit 200, and the output is connected to the feedback common electrode 282 of the compensation capacitor 28 within each pixel unit 200.
- the gain amplifier 29 receives from the common voltage 222 the feedback common voltage VCOM 'and increases the thrust of the current so that the voltage of the feedback common electrode 282 of the compensation capacitor 28 is rapidly charged or discharged to the feedback common voltage VCOM'.
- the thin film transistor 20 has a gate electrode, a source electrode, and a drain electrode.
- the gate electrode is connected to the scan lines 30, and the source electrode is connected to the data line 24, and the drain electrode is connected to the pixel electrode 221.
- the scanner driver 27 outputs a plurality of scanner signals to each scan line 30 in the order.
- the scanner driver 27 outputs the scanner signal on one line of scan line 30, the one with the Scanning line 30 connected thin-film transistor 20 connected.
- the data driver 26 supplies a plurality of gray-level voltages to a plurality of data lines 24, so that the gray-scale voltage is charged through the source and drain electrodes of the switched thin film transistor 20 on the pixel electrode 221.
- the common voltage generator 25 provides the common electrode 222 and the storage electrode 232 with the common voltage Vcom. After the gray scale voltage has been charged to the pixel electrode 221 via the source and drain electrodes of the switched thin film transistor 20 because of a voltage difference between the common voltage and the gray scale voltage on the liquid crystal capacitor 22, the liquid crystal therebetween deviates, so that the required Grayscale is displayed according to the deviation angle of the liquid crystal.
- the function of the storage capacitor 23 is to maintain the gray level voltage on the pixel electrode 221 so that the gray level voltage on the pixel electrode 221 is held until the next gray level voltage arrives.
- the capacitance value of the compensation capacitor 28 may be twice as large as the capacitance value of the liquid crystal capacitor 22.
- the liquid crystal panel of the present invention further comprises a pixel voltage regulator.
- a pixel voltage regulator When the provided gray scale voltage on the data lines 24 changes, the common voltage VCOM on the storage electrode 232 and the common electrode 222 fluctuates due to the presence of the parasitic capacitor 21.
- the pixel gain regulator gain amplifier 29 receives the feed back from the common electrode 222 common voltage VCOM 'and quickly couples the feedback common voltage VCOM' back to the feedback common electrode 282 of the compensation capacitor 28.
- the voltage of the compensation capacitor 28 of the pixel voltage regulator 28 can not change immediately, the voltage of the pixel electrode 221 of the pixel unit 200 also changes as the voltage of the feedback common electrode 282 changes, so that the voltage of the pixel electrode 221 becomes synchronous with that common voltage VCOM changes, whereafter the fluctuation of the common voltage Vcom is equalized, the coupling noise phenomenon is effectively improved, and the display quality of the liquid crystal panel is improved.
- FIG. 4 Fig. 12 is a schematic diagram of the circuit of the second embodiment of the liquid crystal display according to the present invention.
- the liquid crystal panel may be a liquid crystal panel larger than 32 inches in size, such as 37 inches, 40 inches.
- the liquid crystal panel of the second embodiment is substantially the same as the liquid crystal panel of the first embodiment, the difference being: the pixel voltage regulator of the liquid crystal panel of the second embodiment has two amplification amplifiers, and the liquid crystal panel is composed of two vertically symmetric pieces (not shown), the upper portion pixel units 300 share a common gain amplifier 39, and the lower portion pixel units 300 share the other common gain amplifier 39.
- the storage capacitor 38 has a pixel electrode 381, a feed back common electrode 382, and insulating material (not shown) between the pixel electrodes and the feed back common electrode 382, which are disposed opposite to each other.
- a gain amplifier 39 through feedback line 41 is connected to the common electrode 322 of each pixel unit 300 of the upper part, and the output is connected to the feedback common electrode 382 of the compensation capacitor 38 in each pixel unit 300 of the upper part.
- the input of the other gain amplifier 39 is connected through feedback line 41 to the common electrode 322 of each pixel unit 300 of the lower part, and the output is connected to the feedback common electrode 382 of the compensation capacitor 38 in each pixel unit 300 of the lower part.
- the liquid crystal panel of the present invention is not limited to the first embodiment and the second embodiment.
- the number of amplification amplifiers is not limited to one or two, but may be increased according to the size of the liquid crystal panel, and the arrangement and position of the amplification amplifier may also be adjusted as required.
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Abstract
Die vorliegende Erfindung offenbart einen Flüssigkristallbildschirm, aufweisend ein Flüssigkristallpaneel, das eine Vielzahl von matrixartig angeordneten Pixeleinheiten aufweist. Innerhalb jeder Pixeleinheit ist ein Flüssigkristall-Kondensator angeordnet, der Flüssigkristall-Kondensator weist eine Pixelelektrode und eine gemeinsame Elektrode auf, die einander gegenüberliegend angeordnet sind. Der Flüssigkristallbildschirm weist ferner einen Regler für Pixelspannung auf. Der Regler für Pixelspannung empfängt von der gemeinsamen Elektrode die rückkoppelnde gemeinsame Spannung und stellt gemäß der rückkoppelnden gemeinsamen Spannung die Spannung der Pixelelektrode ein. Der Flüssigkristallbildschirm der vorliegenden Erfindung und dessen Pixeleinheiten reduzieren das Koppelgeräusch und verbessern die Anzeigequalität des Flüssigkristallbildschirms.The present invention discloses a liquid crystal panel comprising a liquid crystal panel having a plurality of pixel units arrayed in a matrix. Within each pixel unit is disposed a liquid crystal capacitor, the liquid crystal capacitor has a pixel electrode and a common electrode, which are arranged opposite to each other. The liquid crystal panel further includes a pixel voltage regulator. The pixel voltage regulator receives, from the common electrode, the feedback common voltage and adjusts the voltage of the pixel electrode according to the feedback common voltage. The liquid crystal panel of the present invention and its pixel units reduce the coupling noise and improve the display quality of the liquid crystal panel.
Description
Die vorliegende Erfindung betrifft das Gebiet der Bildschirmtechnik, insbesondere einen Flüssigkristallbildschirm.The present invention relates to the field of display technology, in particular a liquid crystal screen.
Mit den Vorteilen, dass sie dünn und energiesparend ist und niedrige Strahlung hat, ist der Flüssigkristallbildschirm (Liquid Crystal Display, LCD) ein Flachbildschirm, das zur Zeit verbreitet verwendet wird. Das Arbeitsprinzip des Flüssigkristallbildschirms ist, mit der Spannungsdifferenz zwischen zwei Enden der Flüssigkristallschicht die Anordnungsform der Flüssigkristall-Moleküle in der Flüssigkristallschicht zu ändern, um die Lichtdurchlässigkeit der Flüssigkristallschicht zu ändern und dann zusammen mit der vom Hintergrundbeleuchtungsmodul versorgten Lichtquelle das Bild anzuzeigen.With the advantages of being thin and energy efficient and having low radiation, the liquid crystal display (LCD) is a flat screen that is currently in widespread use. The working principle of the liquid crystal panel is to change the arrangement shape of the liquid crystal molecules in the liquid crystal layer with the voltage difference between two ends of the liquid crystal layer to change the light transmittance of the liquid crystal layer and then display the image together with the light source supplied from the back light module.
In
Innerhalb jeder Pixel-Einheit 100 sind ein Dünnschichttransistor 10, ein Flüssigkristall-Kondensator 12 und ein Speicherkondensator 13 angeordnet. Der Flüssigkristall-Kondensator 12 weist eine Pixelelektrode 121, eine gemeinsame Elektrode 122 und eine dazwischen liegende Flüssigkristallschicht, die einander gegenüberliegend angeordnet sind. Der Speicherkondensator 13 weist Pixelelektroden 121, eine Speicherelektrode 132 und isolierendes Material (nicht dargestellt) zwischen den Pixelelektroden und der Speicherelektrode auf, die einander gegenüberliegend angeordnet sind. Darüber hinaus sind parasitäre Kondensatoren 11 üblicherweise auf den Datenleitungen 14, der gemeinsamen Elektrode 122 und der Flüssigkristallschicht zwischen den Datenleitungen und der gemeinsamer Elektrode ausgebildet.Within each
Der Dünnschichttransistor 10 weist eine Gate-Elektrode, eine Source-Elektrode und eine Drain-Elektrode auf. Die Gate-Elektrode ist mit der Abtastlinie 9 verbunden, und die Source-Elektrode ist mit der Datenleitung 14 verbunden, und die Drain-Elektrode ist mit der Pixel-Elektrode 121 verbunden.The
Der Scanner-Treiber 17 gibt nach der Reihenfolge mehrere Scanner-Signale auf jede Abtastlinie 9 aus. Wenn der Scanner-Treiber 17 das Scanner-Signal auf eine Zeile Abtastlinie 9 ausgibt, ist der mit der Abtastlinie 9 verbundene Dünnschichttransistor 10 geschaltet. Gleichzeitig führt der Daten-Treiber 16 mehreren Datenleitungen 14 mehrere Graustufenspannungen zu, so dass die Graustufenspannung durch die Source- und Drain-Elektroden des geschalteten Dünnschichttransistors 10 auf der Pixelelektrode 121 geladen wird.The scanner driver 17 outputs a plurality of scanner signals to each
Der Generator der gemeinsamen Spannung 15 stellt der gemeinsamen Elektrode 222 und der Speicherelektrode 132 die gemeinsame Spannung Vcom zur Verfügung. Nachdem die Graustufenspannung über die Source- und Drain-Elektroden des geschalteten Dünnschichttransistors 10 auf die Pixelelektrode 121 geladen wurde, weil ein Spannungsunterschied zwischen der gemeinsamen Spannung und der Graustufenspannung am Flüssigkristall-Kondensator 12 besteht, weicht das Flüssigkristall ab, so dass die erforderliche Graustufe gemäß dem Abweichungswinkel des Flüssigkristalls angezeigt wird. Die Funktion des Speicherkondensators 13 ist, die Graustufenspannung an der Pixel-Elektrode 121 zu halten, so dass die Graustufenspannung an der Pixelelektrode 121 gehalten wird, bis die nächste Graustufenspannung ankommt.The
Wie in
Eine Pixeleinheit A betrachtend, wenn die Graustufe des von den Pixeleinheiten B um die Pixeleinheiten A anzuzeigenden Bildes sich ändert, wird die bereitgestellte Graustufenspannung an den Datenleitungen 14 der Pixeleinheiten B sich gewiss ändern. Da jetzt die Spannung des parasitären Kondensators 11 der Pixeleinheiten B sich nicht sofort ändern kann, wird die Spannung der gemeinsamen Spannung der Pixeleinheiten B schwanken. Aber die gemeinsame Elektrode 122 jeder Pixeleinheit ist miteinander geschaltet, wonach wird die Spannung der gemeinsamen Elektrode 122 der Pixeleinheiten A auch schwanken. Z.B. den Flüssigkristallbildschirm des konstant hellen Typs betrachtend, wenn die Pixeleinheiten B um die helle Pixeleinheit A vom hellen Zustand gedimmt wird, erhöht sich die Graustufenspannung an den Datenleitungen 12 der Pixeleinheiten B. Da die Spannung des parasitären Kondensators 11 der Pixeleinheiten B sich nicht sofort ändern kann, erhöht sich die Spannung der gemeinsamen Elektrode 122 der Pixeleinheiten B schwankend, wonach wird die die Spannung der gemeinsamen Elektrode 122 der hellen Pixeleinheiten A auch sich schwankend erhöhen. Wenn die Pixeleinheiten B um die helle Pixeleinheit A vom dunklen Zustand hell wird, wird die Spannung der gemeinsamen Elektrode 122 der Pixeleinheiten A auch schwankend sinken.Considering a pixel unit A, when the gray level of the image to be displayed by the pixel units B around the pixel units A changes, the provided gray scale voltage on the
Ebenso besteht bei einer Vielzahl von einzelnen Pixeleinheiten 100 des Flüssigkristallbildschirms das Problem, dass die Spannung der allgemeinen Elektrode 122 sich schwankend erhöht oder sinkt. Die gemeinsame Elektroden 122 jeder Pixeleinheit 100 miteinander verbunden, wonach führt das Problem, dass die gemeinsame Spannung der allgemeinen Elektroden 122 des Flüssigkristallbildschirms sich schwankend erhöht oder sinkt, was leicht zum Phänomen vom Koppelgeräusch führt, so dass die Anzeigequalität des Flüssigkristallbildschirms stark beeinträchtigt wird.Also, with a plurality of
Der Hauptzweck der vorliegenden Erfindung ist es, einen Flüssigkristallbildschirm bereitzustellen, um das Koppelgeräusch zu reduzieren und die Anzeigequalität des Flüssigkristallbildschirms zu verbessern.The main purpose of the present invention is to provide a liquid crystal panel for reducing the coupling noise and improving the display quality of the liquid crystal panel.
Die vorliegende Erfindung stellt einen Flüssigkristallbildschirm, aufweisend ein Flüssigkristallpaneel, das Flüssigkristallpaneel weist eine Vielzahl von matrixartig angeordneten Pixeleinheiten auf. Innerhalb jeder Pixeleinheit ist ein Flüssigkristall-Kondensator angeordnet, der Flüssigkristall-Kondensator weist eine Pixelelektrode und eine gemeinsame Elektrode auf, die einander gegenüberliegend angeordnet sind. Der Flüssigkristallbildschirm weist ferner einen Regler für Pixelspannung auf, der Regler für Pixelspannung weist eine Vielzahl von Kompensationskondensatoren und einen Verstärker mit Verstärkungsfaktor auf. Innerhalb jeder Pixeleinheit ist ein obiger Kompensationskondensator angeordnet, und der Kompensationskondensator weist eine obige Pixelelektrode und eine rückkoppelnde gemeinsame Elektrode auf, die einander gegenüberliegend angeordnet sind. Der Eingang des Verstärkers mit Verstärkungsfaktor ist mit der gemeinsamen Elektrode verbunden, der Ausgang ist mit der rückkoppelnden gemeinsamen Elektrode verbunden.The present invention provides a liquid crystal panel having a liquid crystal panel, the liquid crystal panel having a plurality of pixel units arranged in a matrix. Within each pixel unit is disposed a liquid crystal capacitor, the liquid crystal capacitor has a pixel electrode and a common electrode, which are arranged opposite to each other. The liquid crystal panel further includes a pixel voltage regulator, the pixel voltage regulator having a plurality of compensation capacitors and a gain amplifier. Within each pixel unit, an above compensation capacitor is arranged, and the compensation capacitor has an above pixel electrode and a back-coupling common electrode, which are arranged opposite to each other. The input of the amplification amplifier is connected to the common electrode, the output is connected to the feedback common electrode.
Bevorzugt weist das Flüssigkristallpaneel eine Vielzahl von Abtastlinien und eine Vielzahl von Datenleitungen auf, und eine Vielzahl von Abtastlinien und eine Vielzahl von Datenleitungen überqueren sich in einer isolierten Weise, um die Pixeleinheiten zu definieren. Jede Pixeleinheit weist einen Dünnschichttransistor auf. Der Dünnschichttransistor weist eine Gate-Elektrode, eine Source-Elektrode und eine Drain-Elektrode auf. Die Gate-Elektrode ist mit einer Abtastlinie verbunden, die Source-Elektrode ist mit einer Datenleitung verbunden, und die Drain-Elektrode ist mit der Pixelelektrode verbunden.Preferably, the liquid crystal panel has a plurality of scan lines and a plurality of data lines, and a plurality of scan lines and a plurality of data lines traverse in an isolated manner to define the pixel units. Each pixel unit has a thin film transistor. The thin film transistor has a gate electrode, a source electrode and a drain electrode. The gate electrode is connected to a scan line, the source electrode is connected to a data line, and the drain electrode is connected to the pixel electrode.
Bevorzugt weist jede Pixeleinheit ferner einen Speicherkondensator auf, und der Speicherkondensator weist eine obige Pixelelektrode und eine Speicherelektrode auf, die einander gegenüberliegend angeordnet sind. Die Speicherelektrode und die obige gemeinsame Elektrode empfangen gleiche gemeinsame Spannung.Preferably, each pixel unit further has a storage capacitor, and the storage capacitor has an above pixel electrode and a storage electrode disposed opposite to each other. The storage electrode and the above common electrode receive the same common voltage.
Bevorzugt weist der Flüssigkristallbildschirm ferner einen Generator der gemeinsamen Spannung auf, der Generator der gemeinsamen Spannung stellt der Speicherelektrode und der gemeinsamen Elektrode die gemeinsame Spannung zur Verfügung.Preferably, the liquid crystal panel further comprises a common voltage generator, the common voltage generator provides the common voltage to the storage electrode and the common electrode.
Bevorzugt weist der Flüssigkristallbildschirm ferner einen Scanner-Treiber auf, der Scanner-Treiber stellt den Abtastlinien das Scanner-Signal zur Verfügung.Preferably, the liquid crystal panel further comprises a scanner driver, the scanner driver provides the scanning signals with the scanner signal.
Bevorzugt weist der Flüssigkristallbildschirm ferner einen Daten-Treiber auf, der Daten-Treiber stellt den Datenleitungen die Graustufenspannung zur Verfügung.Preferably, the liquid crystal panel further comprises a data driver, the data driver provides the grayscale voltage to the data lines.
Bevorzug ist der Kapazitätswert des Kompensationskondensators zweimal so groß wie der Kapazitätswert des Flüssigkristall-Kondensators.Preferably, the capacitance value of the compensation capacitor is twice as large as the capacitance value of the liquid crystal capacitor.
Bevorzugt kann der Flüssigkristallbildschirm ein Flüssigkristallbildschirm sein, dessen Größe gleich oder kleiner als 32 Zoll ist.Preferably, the liquid crystal panel may be a liquid crystal panel whose size is equal to or smaller than 32 inches.
Die vorliegende Erfindung stellt ferner einen Flüssigkristallbildschirm bereit, aufweisend ein Flüssigkristallpaneel, das Flüssigkristallpaneel weist eine Vielzahl von matrixartig angeordneten Pixeleinheiten auf. Innerhalb jeder Pixeleinheit ist ein Flüssigkristall-Kondensator angeordnet, der Flüssigkristall-Kondensator weist eine Pixelelektrode und eine gemeinsame Elektrode auf, die einander gegenüberliegend angeordnet sind. Der Flüssigkristallbildschirm weist ferner einen Regler für Pixelspannung auf, der Regler für Pixelspannung empfängt von der gemeinsamen Elektrode die rückkoppelnde gemeinsame Spannung und stellt gemäß der rückkoppelnden gemeinsamen Spannung die Spannung der Pixelelektrode ein.The present invention further provides a liquid crystal panel having a liquid crystal panel, the liquid crystal panel having a plurality of pixel units arranged in a matrix. Within each pixel unit is disposed a liquid crystal capacitor, the liquid crystal capacitor has a pixel electrode and a common electrode, which are arranged opposite to each other. The liquid crystal panel further has a pixel voltage regulator, the pixel voltage regulator receives the common-voltage feedback from the common electrode, and adjusts the voltage of the pixel electrode according to the common-rail feedback voltage.
Bevorzugt weist jede Pixeleinheit ferner einen Speicherkondensator auf, der Speicherkondensator weist eine obige Pixelelektrode und eine Speicherelektrode auf, die einander gegenüberliegend angeordnet sind. Die Speicherelektrode und die obige gemeinsame Elektrode empfangen gleiche gemeinsame Spannung.Preferably, each pixel unit further includes a storage capacitor, the storage capacitor having an above pixel electrode and a storage electrode disposed opposite to each other. The storage electrode and the above common electrode receive the same common voltage.
Bevorzugt weist der Regler für Pixelspannung eine Vielzahl von Kompensationskondensatoren und zwei Verstärker mit Verstärkungsfaktor auf. Innerhalb jeder Pixeleinheit ist ein obiger Kompensationskondensator angeordnet, und der Kompensationskondensator weist eine obige Pixelelektrode und eine rückkoppelnde gemeinsame Elektrode auf, die einander gegenüberliegend angeordnet sind. Der Flüssigkristallbildschirm besteht aus zwei vertikalsymmetrischen Teilen. Dabei ist der Eingang eines Verstärkers mit Verstärkungsfaktor mit der gemeinsamen Elektrode jeder Pixeleinheit des oberen Teils verbunden, und der Ausgang ist mit der rückkoppelnden gemeinsamen Elektrode des Kompensationskondensators in jeder Pixeleinheit des oberen Teils verbunden. Der Eingang des anderen Verstärkers mit Verstärkungsfaktor ist mit der gemeinsamen Elektrode jeder Pixeleinheit des unteren Teils verbunden, und der Ausgang ist mit der rückkoppelnden gemeinsamen Elektrode des Kompensationskondensators in jeder Pixeleinheit des unteren Teils verbunden.Preferably, the pixel voltage regulator comprises a plurality of compensation capacitors and two amplification amplifiers. Within each pixel unit, an above compensation capacitor is arranged, and the compensation capacitor has an above pixel electrode and a back-coupling common electrode, which are arranged opposite to each other. The liquid crystal screen consists of two vertically symmetrical parts. Here, the input of a gain amplifier is connected to the common electrode of each pixel unit of the upper part, and the output is connected to the feedback common electrode of the compensation capacitor in each pixel unit of the upper part. The input of the other amplification amplifier is connected to the common electrode of each pixel unit of the lower part, and the output is connected to the feedback common electrode of the compensation capacitor in each pixel unit of the lower part.
Bevorzugt weist das Flüssigkristallpaneel eine Vielzahl von Abtastlinien und eine Vielzahl von Datenleitungen auf, und eine Vielzahl von Abtastlinien und eine Vielzahl von Datenleitungen überqueren sich in einer isolierten Weise, um die Pixeleinheiten zu definieren. Jede Pixeleinheit weist einen Dünnschichttransistor auf. Der Dünnschichttransistor weist eine Gate-Elektrode, eine Source-Elektrode und eine Drain-Elektrode auf. Die Gate-Elektrode ist mit einer Abtastlinie verbunden, die Source-Elektrode ist mit einer Datenleitung verbunden, und die Drain-Elektrode ist mit der Pixelelektrode verbunden.Preferably, the liquid crystal panel has a plurality of scan lines and a plurality of data lines, and a plurality of scan lines and a plurality of data lines traverse in an isolated manner to define the pixel units. Each pixel unit has a thin film transistor. The thin film transistor has a gate electrode, a source electrode and a drain electrode. The gate electrode is connected to a scan line, the source electrode is connected to a data line, and the drain electrode is connected to the pixel electrode.
Bevorzugt weist der Flüssigkristallbildschirm ferner einen Generator der gemeinsamen Spannung auf, der Generator der gemeinsamen Spannung stellt der Speicherelektrode und der gemeinsamen Elektrode die gemeinsame Spannung zur Verfügung.Preferably, the liquid crystal panel further comprises a common voltage generator, the common voltage generator provides the common voltage to the storage electrode and the common electrode.
Bevorzugt weist der Flüssigkristallbildschirm ferner einen Scanner-Treiber auf, der Scanner-Treiber stellt den Abtastlinien das Scanner-Signal zur Verfügung.Preferably, the liquid crystal panel further comprises a scanner driver, the scanner driver provides the scanning signals with the scanner signal.
Bevorzugt weist der Flüssigkristallbildschirm ferner einen Daten-Treiber auf, der Daten-Treiber stellt den Datenleitungen die Graustufenspannung zur Verfügung.Preferably, the liquid crystal panel further comprises a data driver, the data driver provides the grayscale voltage to the data lines.
Bevorzugt ist der Kapazitätswert des Kompensationskondensators zweimal so groß wie der Kapazitätswert des Flüssigkristall-Kondensators ist.Preferably, the capacitance value of the compensation capacitor is twice as large as the capacitance value of the liquid crystal capacitor.
Bevorzugt kann der Flüssigkristallbildschirm ein Flüssigkristallbildschirm sein, dessen Größe größer als 32 Zoll ist.Preferably, the liquid crystal panel may be a liquid crystal panel whose size is larger than 32 inches.
Bevorzugt ist die Größe des Flüssigkristallbildschirms 37 Zoll oder 40 Zoll.Preferably, the size of the liquid crystal panel is 37 inches or 40 inches.
Im Vergleich mit dem Stand der Technik weist der Flüssigkristallbildschirm der vorliegenden Erfindung ferner einen Regler für Pixelspannung auf. Der Regler für Pixelspannung kann die rückkoppelnde gemeinsame Spannung von der gemeinsamen Elektrode empfangen und gemäß der rückkoppelnden gemeinsamen Spannung die Spannung der Pixelelektrode einstellen, so dass die Spannung der Pixelelektrode sich synchron zu der gemeinsamen Spannung ändert, wonach wird die Schwankung der gemeinsamen Spannung Vcom ausgeglichen, das Phänomen des Koppelgeräusch wird effektiv verbessert und die Anzeigequalität des Flüssigkristallbildschirms wird verbessert.In comparison with the prior art, the liquid crystal panel of the present invention further comprises a pixel voltage regulator. The pixel voltage regulator may receive the common-rail feedback voltage from the common electrode and adjust the voltage of the pixel electrode according to the common-rail feedback voltage so that the voltage of the pixel electrode changes in synchronism with the common voltage, after which the fluctuation of the common voltage Vcom is equalized. The coupling noise phenomenon is effectively improved, and the display quality of the liquid crystal panel is improved.
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Figur 1 ist eine schematische Darstellung der Schaltung des Flüssigkristallanzeigers im Stand der Technik.FIG. 1 Fig. 12 is a schematic diagram of the circuit of the liquid crystal display in the prior art. -
Figur 2 ist eine Ansicht für Pixel-Anordnung eines bestimmten Bereichs einer Ausführungsform des Flüssigkristallanzeigers inFigur 1 .FIG. 2 FIG. 12 is a pixel arrangement view of a specific area of an embodiment of the liquid crystal display in FIGFIG. 1 , -
Figur 3 ist eine schematische Darstellung der Schaltung der ersten Ausführungsform des Flüssigkristallanzeigers gemäß der vorliegenden Erfindung.FIG. 3 Fig. 12 is a schematic diagram of the circuit of the first embodiment of the liquid crystal display according to the present invention. -
Figur 4 ist eine schematische Darstellung der Schaltung der zweiten Ausführungsform des Flüssigkristallanzeigers gemäß der vorliegenden Erfindung.FIG. 4 Fig. 12 is a schematic diagram of the circuit of the second embodiment of the liquid crystal display according to the present invention.
Im Zusammenhang mit den Ausführungsformen und den Figuren werden die Realisierung, die Funktionsmerkmale und die Vorteile der vorliegenden Erfindung näher erläutert.In connection with the embodiments and the figures, the realization, the features and the advantages of the present invention will be explained in more detail.
Es versteht sich, dass die hier beschriebenen Ausführungsformen keine Beschränkung der vorliegenden Erfindung ist, sondern die Erläuterung der vorliegenden Erfindung darstellen.It should be understood that the embodiments described herein are not a limitation of the present invention but are illustrative of the present invention.
Das Flüssigkristallpaneel 210 weist eine Vielzahl von Abtastlinien 30 und eine Vielzahl von Datenleitungen 24 auf. Die Abtastlinien 30 und die Datenleitungen 24 überqueren sich in einer isolierten Weise, so dass eine Vielzahl von matrixartig angeordneten Pixeleinheiten 200 definiert wird. Innerhalb jeder Pixeleinheit 200 sind ein Dünnschichttransistor 20, ein Flüssigkristall-Kondensator 22, ein Speicherkondensator 23 und ein obiger Kompensationskondensator 28 angeordnet. Der Flüssigkristall-Kondensator 22 weist eine Pixelelektrode 221, eine gemeinsame Elektrode 222 und eine dazwischen liegende Flüssigkristallschicht (nicht dargestellt), die einander gegenüberliegend angeordnet sind.The
Der Speicherkondensator 23 weist eine Pixelelektrode 221, eine Speicherelektrode 232 und isolierendes Material (nicht dargestellt) zwischen den Pixelelektroden und der Speicherelektrode auf, die einander gegenüberliegend angeordnet sind. Der Kompensationskondensator 28 weist eine Pixelelektrode 221, eine rückkoppelnde gemeinsame Elektrode 282 und isolierendes Material (nicht dargestellt) zwischen den Pixelelektroden und der rückkoppelnden gemeinsamen Elektrode auf, die einander gegenüberliegend angeordnet sind. Darüber hinaus sind parasitäre Kondensatoren 21 üblicherweise auf den Datenleitungen 24, der gemeinsamen Elektrode 222 und der Flüssigkristallschicht zwischen den Datenleitungen und der gemeinsamer Elektrode ausgebildet.The storage capacitor 23 has a pixel electrode 221, a storage electrode 232, and insulating material (not shown) between the pixel electrodes and the storage electrode, which are disposed opposite to each other. The compensation capacitor 28 has a pixel electrode 221, a feedback
Der Eingang eines Verstärkers mit Verstärkungsfaktor 29 ist über Rückkopplungsleitung 31 mit der gemeinsamen Elektrode 222 jeder Pixeleinheit 200 verbunden, und der Ausgang ist mit der rückkoppelnden gemeinsamen Elektrode 282 des Kompensationskondensators 28 innerhalb jeder Pixeleinheit 200 verbunden. Der Verstärker mit Verstärkungsfaktor 29 empfängt von der gemeinsamen Spannung 222 die rückkoppelnde gemeinsame Spannung VCOM' und vergrößert die Schubkraft des Stroms, so dass die Spannung der rückkoppelnden gemeinsamen Elektrode 282 des Kompensationskondensators 28 schnell aufgeladen oder auf die rückkoppelnde gemeinsame Spannung VCOM' entladen wird.The input of a
Der Dünnschichttransistor 20 weist eine Gate-Elektrode, eine Source-Elektrode und eine Drain-Elektrode auf. Die Gate-Elektrode ist mit der Abtastlinien 30 verbunden, und die Source-Elektrode ist mit der Datenleitung 24 verbunden, und die Drain-Elektrode ist mit der Pixel-Elektrode 221 verbunden.The
Der Scanner-Treiber 27 gibt nach der Reihenfolge mehrere Scanner-Signale auf jede Abtastlinie 30 aus. Wenn der Scanner-Treiber 27 das Scanner-Signal auf eine Zeile Abtastlinie 30 ausgibt, ist der mit der Abtastlinie 30 verbundene Dünnschichttransistor 20 geschaltet. Gleichzeitig führt der Daten-Treiber 26 mehreren Datenleitungen 24 mehrere Graustufenspannungen zu, so dass die Graustufenspannung durch die Source- und Drain-Elektroden des geschalteten Dünnschichttransistors 20 auf der Pixelelektrode 221 geladen wird.The
Der Generator der gemeinsamen Spannung 25 stellt der gemeinsamen Elektrode 222 und der Speicherelektrode 232 die gemeinsame Spannung Vcom zur Verfügung. Nachdem die Graustufenspannung über die Source- und Drain-Elektroden des geschalteten Dünnschichttransistors 20 auf die Pixelelektrode 221 geladen wurde, weil ein Spannungsunterschied zwischen der gemeinsamen Spannung und der Graustufenspannung am Flüssigkristall-Kondensator 22 besteht, weicht das dazwischen liegende Flüssigkristall ab, so dass die erforderliche Graustufe gemäß dem Abweichungswinkel des Flüssigkristalls angezeigt wird. Die Funktion des Speicherkondensators 23 ist, die Graustufenspannung an der Pixel-Elektrode 221 zu halten, so dass die Graustufenspannung an der Pixelelektrode 221 solange gehalten wird, bis die nächste Graustufenspannung ankommt.The
In der Ausführungsform kann der Kapazitätswert des Kompensationskondensators 28 zweimal so groß wie der Kapazitätswert des Flüssigkristall-Kondensators 22 sein.In the embodiment, the capacitance value of the compensation capacitor 28 may be twice as large as the capacitance value of the
Im Vergleich mit dem Stand der Technik weist der Flüssigkristallbildschirm der vorliegenden Erfindung ferner einen Regler für Pixelspannung auf. Wenn die bereitgestellte Graustufenspannung an den Datenleitungen 24 sich ändert, schwankt die gemeinsame Spannung VCOM an der Speicherelektrode 232 und der gemeinsamen Elektrode 222 wegen des Vorhandenseins des parasitären Kondensators 21. Der Verstärker mit Verstärkungsfaktor 29 des Reglers für Pixelspannung empfängt von der gemeinsamen Elektrode 222 die rückkoppelnde gemeinsame Spannung VCOM' und koppelt die rückkoppelnde gemeinsame Spannung VCOM' schnell an die rückkoppelnde gemeinsame Elektrode 282 des Kompensationskondensators 28 rück. Da die Spannung des Kompensationskondensators 28 des Reglers für Pixelspannung sich nicht sofort ändern kann, ändert sich die Spannung der Pixelelektrode 221 der Pixeleinheit 200 auch, wenn die Spannung der rückkoppelnden gemeinsamen Elektrode 282 sich ändert, so dass die Spannung der Pixelelektrode 221 sich synchron zu der gemeinsamen Spannung VCOM ändert, wonach wird die Schwankung der gemeinsamen Spannung Vcom ausgeglichen, das Phänomen des Koppelgeräusch wird effektiv verbessert und die Anzeigequalität des Flüssigkristallbildschirms wird verbessert.In comparison with the prior art, the liquid crystal panel of the present invention further comprises a pixel voltage regulator. When the provided gray scale voltage on the data lines 24 changes, the common voltage VCOM on the storage electrode 232 and the common electrode 222 fluctuates due to the presence of the
Der Speicherkondensator 38 weist eine Pixelelektrode 381, eine rückkoppelnde gemeinsame Elektrode 382 und isolierendes Material (nicht dargestellt) zwischen den Pixelelektroden und der rückkoppelnde gemeinsame Elektrode 382 auf, die einander gegenüberliegend angeordnet sind. Dabei ist der Eingang eines Verstärkers mit Verstärkungsfaktor 39 durch Rückkoppelungsleitung 41 mit der gemeinsamen Elektrode 322 jeder Pixeleinheit 300 des oberen Teils verbunden, und der Ausgang ist mit der rückkoppelnden gemeinsamen Elektrode 382 des Kompensationskondensators 38 in jeder Pixeleinheit 300 des oberen Teils verbunden. Der Eingang des anderen Verstärkers mit Verstärkungsfaktor 39 ist durch Rückkoppelungsleitung 41 mit der gemeinsamen Elektrode 322 jeder Pixeleinheit 300 des unteren Teils verbunden, und der Ausgang ist mit der rückkoppelnden gemeinsamen Elektrode 382 des Kompensationskondensators 38 in jeder Pixeleinheit 300 des unteren Teils verbunden.The
Der Flüssigkristallbildschirm der vorliegenden Erfindung ist nicht auf die erste Ausführungsform und die zweite Ausführungsform beschränkt. Die Anzahl vom Verstärker mit Verstärkungsfaktor beschränkt sich nicht auf eins oder zwei, sondern kann gemäß der Größe des Flüssigkristallbildschirms erhöht werden, und die Anordnung und die Position des Verstärkers mit Verstärkungsfaktor können auch nach Bedarf eingestellt werden.The liquid crystal panel of the present invention is not limited to the first embodiment and the second embodiment. The number of amplification amplifiers is not limited to one or two, but may be increased according to the size of the liquid crystal panel, and the arrangement and position of the amplification amplifier may also be adjusted as required.
Das Obige ist nur eine bevorzugte Ausführungsform der vorliegenden Erfindung und keine Beschränkung des Patentumfangs der vorliegenden Erfindung. Alle gleichwertigen Strukturen oder äquivalenten Verfahrensumwandlungen, oder direkte oder indirekte Verwendungen in den anderen relevanten technischen Gebieten auf der Grundlage der Beschreibung und Zeichnungen der vorliegenden Erfindung gehören zum Schutzumfang der vorliegenden Erfindung.The above is only a preferred embodiment of the present invention and not a limitation on the scope of the present invention. All equivalent structures or equivalent process transformations, or direct or indirect uses in the other relevant technical fields, based on the description and drawings of the present invention, are within the scope of the present invention.
Claims (18)
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| CN2011101186466A CN102183852B (en) | 2011-05-09 | 2011-05-09 | Liquid crystal display |
| PCT/CN2011/074349 WO2012151761A1 (en) | 2011-05-09 | 2011-05-19 | Liquid crystal display |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120079354A (en) * | 2011-01-04 | 2012-07-12 | 삼성모바일디스플레이주식회사 | Shutter control system and image apparatus comprising the system |
| US9135882B2 (en) | 2012-12-14 | 2015-09-15 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Data driver circuit having compensation module, LCD device and driving method |
| CN103065594B (en) * | 2012-12-14 | 2017-04-12 | 深圳市华星光电技术有限公司 | Data driving circuit, liquid crystal display device and driving method |
| CN103257498B (en) * | 2013-05-07 | 2016-04-13 | 京东方科技集团股份有限公司 | A kind of dot structure and driving method, display device |
| KR102305323B1 (en) * | 2014-09-10 | 2021-09-28 | 엘지디스플레이 주식회사 | Touch sensing device |
| CN104795036B (en) * | 2015-04-28 | 2018-02-27 | 京东方科技集团股份有限公司 | A kind of compensation circuit, drive circuit and its method of work, display device |
| JP6531313B2 (en) * | 2015-05-01 | 2019-06-19 | 凸版印刷株式会社 | Liquid crystal display |
| TWI549113B (en) * | 2015-05-29 | 2016-09-11 | 鴻海精密工業股份有限公司 | Display device |
| US9740349B2 (en) * | 2015-09-01 | 2017-08-22 | Himax Technologies Limited | Touch driving apparatus, touch driving method and touch display system |
| KR102342357B1 (en) * | 2015-09-30 | 2021-12-24 | 엘지디스플레이 주식회사 | Display device and driving method of the same |
| CN105301858B (en) * | 2015-11-06 | 2018-09-18 | 深圳市华星光电技术有限公司 | The preparation method and array substrate of a kind of display panel, display panel |
| CN105575356A (en) | 2016-03-21 | 2016-05-11 | 京东方科技集团股份有限公司 | Pixel electrode voltage processing circuit and display apparatus |
| CN108735174B (en) * | 2018-05-28 | 2020-07-28 | 深圳市华星光电技术有限公司 | Pixel driving circuit, pixel driving method and display device |
| CN110544460B (en) * | 2018-05-28 | 2022-02-22 | 奇景光电股份有限公司 | Liquid crystal display and dynamic compensation system of common electrode voltage thereof |
| CN109377967B (en) * | 2018-12-25 | 2020-07-10 | 惠科股份有限公司 | Display panel correction method and display device |
| CN109445148A (en) * | 2019-01-11 | 2019-03-08 | 惠科股份有限公司 | The adjusting method and pixel voltage value regulating system of dot structure |
| CN115083364B (en) * | 2022-06-23 | 2023-06-30 | 惠科股份有限公司 | Pixel circuit, array substrate and display panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040169627A1 (en) * | 2002-12-17 | 2004-09-02 | Samsung Electronics Co., Ltd. | Liquid crystal display having common voltages |
| US20100060558A1 (en) * | 2008-09-05 | 2010-03-11 | Samsung Electronics Co., Ltd. | Liquid crystal display |
| US20100225831A1 (en) * | 2006-03-06 | 2010-09-09 | Masanori Takeuchi | Active-matrix substrate, display device, and television receiver |
| US20100277399A1 (en) * | 2009-05-04 | 2010-11-04 | Hui-Lung Yu | Common-voltage compensation circuit and compensation method for use in a liquid crystal display |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995000874A1 (en) * | 1993-06-18 | 1995-01-05 | Hitachi, Ltd. | Liquid crystal matrix display device and method of driving the same |
| KR100448936B1 (en) * | 1997-09-25 | 2004-11-16 | 삼성전자주식회사 | Circuit for driving liquid crystal display device to compensate gate off voltage and method for driving the same, especially supplying common voltage from a common electrode to a gate line |
| KR100806906B1 (en) * | 2001-09-25 | 2008-02-22 | 삼성전자주식회사 | Liquid crystal display and driving apparatus and method thereof |
| JP2006189473A (en) * | 2004-12-28 | 2006-07-20 | Koninkl Philips Electronics Nv | Active matrix liquid crystal display device |
| TWI339378B (en) | 2007-05-11 | 2011-03-21 | Chimei Innolux Corp | Liquid crystal display device and method for driving the same |
| CN101320170B (en) * | 2007-06-08 | 2010-09-29 | 群康科技(深圳)有限公司 | LCD device |
| CN102034443A (en) * | 2009-09-30 | 2011-04-27 | 北京京东方光电科技有限公司 | Method for improving accuracy of pixel electrode voltage and array substrate |
-
2011
- 2011-05-09 CN CN2011101186466A patent/CN102183852B/en active Active
- 2011-05-19 US US13/145,909 patent/US8576149B2/en active Active
- 2011-05-19 EP EP11865403.7A patent/EP2706397B1/en active Active
- 2011-05-19 WO PCT/CN2011/074349 patent/WO2012151761A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040169627A1 (en) * | 2002-12-17 | 2004-09-02 | Samsung Electronics Co., Ltd. | Liquid crystal display having common voltages |
| US20100225831A1 (en) * | 2006-03-06 | 2010-09-09 | Masanori Takeuchi | Active-matrix substrate, display device, and television receiver |
| US20100060558A1 (en) * | 2008-09-05 | 2010-03-11 | Samsung Electronics Co., Ltd. | Liquid crystal display |
| US20100277399A1 (en) * | 2009-05-04 | 2010-11-04 | Hui-Lung Yu | Common-voltage compensation circuit and compensation method for use in a liquid crystal display |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2012151761A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2706397A4 (en) | 2015-03-18 |
| EP2706397B1 (en) | 2020-02-12 |
| CN102183852A (en) | 2011-09-14 |
| CN102183852B (en) | 2013-07-17 |
| WO2012151761A1 (en) | 2012-11-15 |
| US20120287107A1 (en) | 2012-11-15 |
| US8576149B2 (en) | 2013-11-05 |
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