CN105374337A - Liquid crystal display device and operation method thereof - Google Patents

Liquid crystal display device and operation method thereof Download PDF

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Publication number
CN105374337A
CN105374337A CN201511002576.2A CN201511002576A CN105374337A CN 105374337 A CN105374337 A CN 105374337A CN 201511002576 A CN201511002576 A CN 201511002576A CN 105374337 A CN105374337 A CN 105374337A
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CN
China
Prior art keywords
top rake
drive signal
gate drive
clock signal
signal
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Application number
CN201511002576.2A
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Chinese (zh)
Inventor
朱育纬
萧开元
李建锋
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AU Optronics Corp
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AU Optronics Corp
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Publication of CN105374337A publication Critical patent/CN105374337A/en
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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
    • 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
    • G09G2300/0469—Details of the physics of pixel operation
    • G09G2300/0478—Details of the physics of pixel operation related to liquid crystal pixels
    • G09G2300/0491—Use of a bi-refringent liquid crystal, optically controlled bi-refringence [OCB] with bend and splay states, or electrically controlled bi-refringence [ECB] for controlling the color
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • 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
    • 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
    • G09G3/3614—Control of polarity reversal in general
    • 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

Abstract

The liquid crystal display device comprises a display unit, a clock pulse control unit and a grid driving module, wherein the display unit is provided with a plurality of pixel units, the clock pulse control unit is used for generating clock pulse signals, the grid driving module is electrically coupled with the clock pulse control unit and comprises a grid driving unit and a chamfering circuit, the grid driving module is used for generating chamfering grid driving signals according to the clock pulse signals and transmitting the chamfering grid driving signals to the corresponding pixel units, and chamfering is carried out on the chamfering grid driving signals according to the clock pulse signals. The invention also discloses an operation method of the liquid crystal display device.

Description

Liquid crystal indicator and method of operating thereof
Technical field
The present invention relates to a kind of display device, particularly a kind of structure of liquid crystal indicator and method of operating thereof.
Background technology
Current liquid crystal display comprises multiple row pixel, and each row pixel receives a gate drive signal, and when the pixel of same row is opened because of gate drive signal, the pixel be unlocked can show according to received display data.And in order to reduce the film flicker that pixel causes because of stray capacitance, prior art often utilizes top rake circuit to make liquid crystal display have the gate drive signal of top rake to drive above-mentioned pixel.Again, opened by gate drive signal in the time of mistake in order to avoid pixel and show the display data of mistake, namely pixel is filled by mistake, need extra design, thus significantly can increase the routing region, inside of liquid crystal display and use number of elements, and then increasing the consumption of integral energy and cost.
Summary of the invention
Technical matters to be solved by this invention is the above-mentioned defect for prior art, provides a kind of liquid crystal indicator and method of operating thereof.
To achieve these goals, the invention provides a kind of liquid crystal indicator, it comprises display unit, clock pulse control module and grid electrode drive module, wherein, display unit has multiple pixel cell, clock pulse control module is in order to produce clock signal, grid electrode drive module and clock pulse control module electric property coupling, grid electrode drive module is in order to produce top rake gate drive signal according to clock signal and to be sent to corresponding multiple pixel cells, and top rake gate drive signal carries out top rake according to clock signal.
In the preferred embodiment, above-mentioned grid electrode drive module also comprises drive element of the grid and top rake circuit, drive element of the grid and clock pulse control module electric property coupling are to export gate drive signal according to clock signal, top rake circuit and multiple pixel cell, drive element of the grid and clock pulse control module electric property coupling, top rake circuit is in order to receive gate drive signal and clock signal and to carry out top rake to produce top rake gate drive signal according to clock signal to gate drive signal, top rake gate drive signal is also sent to corresponding multiple pixel cells by top rake circuit.
In the preferred embodiment, above-mentioned grid electrode drive module also comprises drive element of the grid and top rake circuit, top rake circuit and clock pulse control module electric property coupling, in order to receive clock signal and high voltage level, and according to clock signal, top rake is carried out to produce top rake high voltage level to high voltage level, drive element of the grid and top rake circuit, clock pulse control module and multiple pixel cell electric property coupling, drive element of the grid receives top rake high voltage level and clock signal, and produce top rake gate drive signal according to top rake high voltage level and clock signal, and top rake gate drive signal is sent to corresponding multiple pixel cells.
In the preferred embodiment, above-mentioned clock signal, top rake gate drive signal and data drive signal all have one first kenel and trigger edge and one second kenel triggering edge, second kenel of data drive signal triggers the first kenel that edge is later than clock signal and top rake gate drive signal and triggers edge, and the second kenel of data drive signal triggers edge and triggers edge early than the second kenel of clock signal and top rake gate drive signal.
In order to realize above-mentioned purpose better, present invention also offers a kind of method of operating of liquid crystal indicator, liquid crystal indicator comprises multiple pixel cell, clock pulse control module and grid electrode drive module, clock pulse control module is in order to export clock signal and data drive signal, and the method for operating of liquid crystal indicator comprises the following steps: make grid electrode drive module receive clock signal and produce top rake gate drive signal according to this; And make multiple pixel cell receive top rake gate drive signal, wherein, top rake gate drive signal carries out top rake according to clock signal.
In the preferred embodiment, above-mentioned grid electrode drive module also comprises drive element of the grid and top rake circuit, and the method for operating of liquid crystal indicator also comprises: make drive element of the grid receive clock signal and export a gate drive signal according to this; Top rake circuit is made to receive clock signal and gate drive signal and carry out top rake to export a top rake gate drive signal with clock signal to gate drive signal.
In the preferred embodiment, above-mentioned grid electrode drive module also comprises drive element of the grid and top rake circuit, the method of operating of liquid crystal indicator also comprises: make top rake circuit receive clock signal and high voltage level, and carry out top rake to produce a top rake high voltage level according to clock signal to high voltage level; Make drive element of the grid receive clock signal and top rake high voltage level, and produce top rake gate drive signal according to clock signal and top rake high voltage level.
In the preferred embodiment, above-mentioned clock signal, top rake gate drive signal and data drive signal all have one first kenel and trigger edge and one second kenel triggering edge, second kenel of data drive signal triggers the first kenel that edge is later than clock signal and top rake gate drive signal and triggers edge, and the second kenel of data drive signal triggers edge and triggers edge early than the second kenel of clock signal and top rake gate drive signal.
Technique effect of the present invention is:
The situation that the present invention can effectively avoid mistake to fill occurs, and therefore the present invention obviously can effectively reduce element trace region and number of elements, significantly reduces the consumption of integral energy and cost.
Also describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Figure 1A is liquid crystal indicator embodiment one schematic diagram of the present invention;
Figure 1B is the time diagram of liquid crystal indicator embodiment one of the present invention;
Fig. 2 A is liquid crystal indicator embodiment two schematic diagram of the present invention;
Fig. 2 B is the time diagram of liquid crystal indicator embodiment two of the present invention;
Fig. 3 A is liquid crystal indicator embodiment one method of operating flow chart of steps of the present invention;
Fig. 3 B is liquid crystal indicator embodiment two method of operating flow chart of steps of the present invention.
Wherein, Reference numeral
10 liquid crystal indicators
11 clock pulse control modules
12 grid electrode drive modules
121 drive element of the grid
122 top rake circuit
13 data drive unit
14 display units
141 pixel cells
CLK clock signal
STB, STB1, STB2 data drive signal
G oUT, G oUT1g oUTntop rake gate drive signal
G 1, G 2g ngate drive signal
V gHhigh voltage level
V gHMtop rake high voltage level
T, T 1, T 2period
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and principle of work are described in detail:
Refer to Figure 1A, Figure 1A is liquid crystal indicator 10 embodiment 1 of the present invention, and liquid crystal indicator 10 comprises clock pulse control module 11, grid electrode drive module 12, data drive unit 13 and display unit 14.Clock pulse control module 11 and grid electrode drive module 12 and data drive unit 13 electric property coupling, clock pulse control module 11 produces clock signal CLK and data drive signal STB.Data drive unit 13 and clock pulse control module 11 electric property coupling receive data drive signal STB and according to data drive signal STB output display data to the display unit 14 of electric property coupling.Display unit 14 comprises multiple pixel cell 141, each pixel cell 141 all with data drive unit 13 and grid electrode drive module 12 electric property coupling, each pixel cell 141 is the top rake gate drive signal G in order to export according to grid electrode drive module 12 oUTdetermine whether show the display data received by data drive unit 13.Grid electrode drive module 12 comprises drive element of the grid 121 and top rake circuit 122, drive element of the grid 121 and clock pulse control module 11 and top rake circuit 122 electric property coupling, drive element of the grid 121 receives above-mentioned clock signal CLK, and produce the gate drive signal corresponding to often row pixel cell 141 according to clock signal CLK, G as shown in Figure 1A 1, G 1g n, top rake circuit 122 and clock pulse control module 11 and drive element of the grid 121 electric property coupling, top rake circuit 122 receives above-mentioned clock signal CLK and gate drive signal G 1g n, and according to clock signal CLK to the gate drive signal G received 1g ncarry out top rake and produce corresponding top rake gate drive signal G oUT1g oUTn, as shown in Figure 1A, top rake circuit 122 by the top rake gate drive signal G after top rake oUT1g oUTnbe sent to the pixel cell 141 of respective column, make to receive corresponding top rake gate drive signal G oUT1g oUTnpixel cell 141 can open according to this and show received display data.
Then please refer to Figure 1B, Figure 1B is above-mentioned clock signal CLK, data drive signal STB, gate drive signal G 1g nand top rake gate drive signal G oUT1g oUTntime diagram, gate drive signal G in this embodiment 1g nwith gate drive signal G 1and gate drive signal G 2for example, top rake gate drive signal G oUT1g oUTnwith top rake gate drive signal G oUT1and top rake gate drive signal G oUT2for example.Following elder generation is with gate drive signal G 1and top rake gate drive signal G oUT1for example illustrates the sequential relationship between each signal.Clock signal CLK, data drive signal STB, gate drive signal G 1, and top rake gate drive signal G oUTall there is one first kenel trigger edge and one second kenel and trigger edge, the first kenel trigger edge can be rising edge or falling edge one of them, the second kenel triggering edge can be rising edge or falling edge wherein another, gate drive signal G 1and top rake gate drive signal G oUT1the first kenel trigger edge and the second kenel and trigger edge there is the roughly the same activation time, first kenel of clock signal CLK triggers edge and gate drive signal G 1and top rake gate drive signal G oUT1first kenel trigger edge there is the roughly the same activation time, clock signal CLK second kenel trigger edge then early than gate drive signal G 1and top rake gate drive signal G oUT1, first kenel of data drive signal STB triggers edge and clock signal CLK, gate drive signal G 1and top rake gate drive signal G oUT1the first kenel trigger edge there is the identical activation time, second kenel of data drive signal STB triggers activation time of edge then early than clock signal CLK, gate drive signal G 1and top rake gate drive signal G oUT1second kenel trigger edge.
Then the following How It Works that will coordinate Figure 1A and Figure 1B that liquid crystal indicator 10 embodiment 1 of the present invention is described.First at period T, drive element of the grid 121 receives clock signal CLK and starts to export gate drive signal G according to this 1, and with gate drive signal G 1second kenel of corresponding data drive signal STB1 triggers edge and is then later than gate drive signal G 1the time that first kenel triggers edge is enabled, and data drive unit 13 triggers edge output display data in pixel cell 141 according to second kenel of data drive signal STB1 again.In addition, top rake circuit 122 receives clock signal CLK and gate drive signal G 1.As can be seen from Figure 1B, in period T 1in, top rake circuit 122, when clock signal CLK is a low voltage level (being such as logic low potential), utilizes the low voltage level of clock signal CLK by gate drive signal G 1carry out top rake to produce top rake gate drive signal G oUT1, and by top rake gate drive signal G oUT1be sent to corresponding pixel cell 141.Wherein, with top rake gate drive signal G oUT2for example, as top rake gate drive signal G oUT2the first kenel trigger edge when being enabled, corresponding top rake gate drive signal G oUT2data drive signal STB2 first kenel trigger edge be also enabled simultaneously, but second kenel of data drive signal STB2 triggers edge and is not yet enabled, right data drive unit 13 triggers edge according to second kenel of data drive signal STB to activate with the pixel cell 141 display reportedly being delivered to electric property coupling, that is, trigger edge in first kenel of data drive signal STB2 to be enabled but the second kenel triggers the interval that is not yet enabled of edge, the namely period T of Figure 1B 2time, by top rake gate drive signal G oUT2the pixel cell 141 of activation receives by top rake gate drive signal G oUT1the display data that the pixel cell 141 of activation receives, namely the display data that receive of previous column pixel cell 141, though by top rake gate drive signal G in this is interval oUT2the pixel cell 141 of activation have received the display data of previous column pixel cell 141, so when the second kenel triggering edge of data drive signal STB2 is enabled, correct display data can cover previous the received display data of pixel cell 141 immediately, therefore by top rake gate drive signal G oUT2the pixel cell 141 of activation still can normally show the data that should show fast.
Refer to Fig. 2 A, Fig. 2 A is that the difference of liquid crystal indicator 10 embodiment 2, Fig. 2 A and Figure 1A of the present invention is, the top rake circuit 122 of Fig. 2 A receives clock signal CLK and high voltage level V gH(being such as logic high potential), top rake circuit 122 also carries out top rake to produce top rake high voltage level V according to clock signal CLK to high voltage level gHM, top rake circuit 122 is again by top rake high voltage level V gHMbe sent to drive element of the grid 121.The drive element of the grid 121 of Fig. 2 A receives clock signal CLK and top rake high voltage level V gHM, and according to clock signal CLK and top rake high voltage level V gHMproduce top rake gate drive signal G oUT1g oUTn, drive element of the grid 121 is again by top rake gate drive signal G oUT1g oUTnbe sent to corresponding pixel cell 141, as shown in Figure 2 A.
Refer to Fig. 2 B, Fig. 2 B is above-mentioned clock signal CLK, data drive signal STB, high voltage level V gH, top rake high voltage level V gHMand top rake gate drive signal G oUT1g oUTntime diagram, top rake gate drive signal G in this embodiment oUT1g oUTnwith top rake gate drive signal G oUT1and top rake gate drive signal G oUT2for example.Following elder generation is with top rake gate drive signal G oUT1for example illustrates the sequential relationship between each signal.Clock signal CLK, data drive signal STB and top rake gate drive signal G oUTall have one first kenel and trigger edge and one second kenel triggering edge, first kenel of clock signal CLK triggers edge and top rake gate drive signal G oUT1first kenel trigger edge there is the identical activation time, clock signal CLK second kenel trigger edge then early than top rake gate drive signal G oUT1the second kenel trigger edge, first kenel of data drive signal STB triggers edge and clock signal CLK and top rake gate drive signal G oUT1the first kenel trigger edge there is the identical activation time, second kenel of data drive signal STB triggers activation time of edge then early than clock signal CLK and top rake gate drive signal G oUT1second kenel trigger edge.
Then the following How It Works that will coordinate Fig. 2 A and Fig. 2 B that liquid crystal indicator 10 embodiment 2 of the present invention is described.First at period T, top rake circuit 122 receives clock signal CLK and high voltage level V gH, top rake circuit 122 according to clock signal CLK to high voltage level V gHcarry out top rake, i.e. Fig. 2 B period T1, with the low voltage level of clock signal CLK to high voltage level V gHcarry out top rake to produce top rake high voltage level V gHM, drive element of the grid 121 receives clock signal CLK and top rake high voltage level V gHMand export top rake gate drive signal G according to this oUT1, and with gate drive signal G 1second kenel of corresponding data drive signal STB1 triggers edge and is later than gate drive signal G 1the time that first kenel triggers edge is enabled, and data drive unit 13 triggers edge output display data in pixel cell 141 according to second kenel of data drive signal STB1.Wherein, with top rake gate drive signal G oUT2for example, as top rake gate drive signal G oUT2the first kenel trigger edge when being enabled, corresponding top rake gate drive signal G oUT2data drive signal STB2 first kenel trigger edge be also enabled simultaneously, but second kenel of data drive signal STB2 triggers edge and is not yet enabled, right data drive unit 13 triggers edge according to second kenel of data drive signal STB to activate with the pixel cell 141 display reportedly being delivered to electric property coupling, that is, trigger edge in first kenel of data drive signal STB2 to be enabled but the second kenel triggers the interval that is not yet enabled of edge, the namely period T of Fig. 2 B 2time, by top rake gate drive signal G oUT2the pixel cell 141 of activation receives by top rake gate drive signal G oUT1the display data that the pixel cell 141 of activation receives, though by top rake gate drive signal G at this moment oUT2the pixel cell 141 of activation have received the display data of previous column pixel cell 141, so when the second kenel triggering edge of data drive signal STB2 is enabled, correct display data can cover previous the received display data of pixel cell 141 immediately, therefore by top rake gate drive signal G oUT2the pixel cell 141 of activation still can normally show the data that should show fast.
According to above-mentioned content, the present invention also can converge whole go out the method for operating of liquid crystal indicator 10.Refer to Fig. 3 A and Figure 1A, Fig. 3 A is the method for operating embodiment of liquid crystal indicator 10 embodiment one, below and with gate drive signal G 1and top rake gate drive signal G oUT1for example illustrates, its step comprises: make drive element of the grid 121 receive clock signal CLK and export gate drive signal G according to clock signal CLK 1(step 301); Then top rake circuit 122 is made to receive clock signal CLK and gate drive signal G 1, and with clock signal CLK to gate drive signal G 1carry out top rake to export top rake gate drive signal G oUT1(step 302); Make data drive unit 13 trigger edge according to second kenel of data drive signal STB and export multiple display data individual pixel cell 141 (step 303) at the most; Pixel cell 141 is made to receive display according to this and top rake gate drive signal G oUT1, pixel cell 141 is because top rake gate drive signal G oUT1and open, and show the display data (step 304) received.Refer to Fig. 3 B and Figure 1B, Fig. 3 B is the method for operating embodiment of liquid crystal indicator 10 embodiment two, and its step comprises: make top rake circuit 122 receive clock signal CLK and high voltage level V gH, and according to clock signal CLK to high voltage level V gHcarry out top rake to produce top rake high voltage level V gHM(step 311); Drive element of the grid 121 is made to receive clock signal CLK and top rake high voltage level V gHM, and according to clock signal CLK and top rake high voltage level V gHMproduce top rake gate drive signal G oUT1(step 312); Make data drive unit 13 trigger edge according to second kenel of data drive signal STB and export multiple display data individual pixel cell 141 (step 313) at the most; Pixel cell 141 is made to receive display according to this and top rake gate drive signal G oUT1, pixel cell 141 is because top rake gate drive signal G oUT1and open, and show the display data (step 304) received.
In sum, the present invention is because substituting extra outside top rake signal to carry out top rake with clock signal CLK, the situation still can effectively avoiding mistake to fill occurs, and therefore the present invention obviously can effectively reduce element trace region and number of elements, and then significantly reduces the consumption of integral energy and cost.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.

Claims (10)

1. a liquid crystal indicator, is characterized in that, comprising:
One display unit, it has multiple pixel cell;
One clock pulse control module, in order to produce a clock signal; And
One grid electrode drive module, with this clock pulse control module electric property coupling, this grid electrode drive module is in order to produce a top rake gate drive signal according to this clock signal and to be sent to corresponding the plurality of pixel cell, and wherein, this top rake gate drive signal carries out top rake according to this clock signal.
2. liquid crystal indicator as claimed in claim 1, it is characterized in that, this grid electrode drive module also comprises:
One drive element of the grid, with this clock pulse control module electric property coupling, this drive element of the grid is in order to export a gate drive signal according to this clock signal; And
One top rake circuit, with the plurality of pixel cell, this drive element of the grid and this clock pulse control module electric property coupling, this top rake circuit is in order to receive this gate drive signal and this clock signal and to carry out top rake to produce this top rake gate drive signal according to this clock signal to this gate drive signal, and this top rake gate drive signal is also sent to corresponding the plurality of pixel cell by this top rake circuit.
3. liquid crystal indicator as claimed in claim 1, it is characterized in that, this grid electrode drive module also comprises:
One top rake circuit, with this clock pulse control module electric property coupling, in order to receive this clock signal and a high voltage level, and carries out top rake to produce a top rake high voltage level according to this clock signal to this high voltage level; And
One drive element of the grid, with this top rake circuit, this clock pulse control module and the plurality of pixel cell electric property coupling, this drive element of the grid is in order to receive this top rake high voltage level and this clock signal, and produce this top rake gate drive signal according to this top rake high voltage level and this clock signal, and this top rake gate drive signal is sent to corresponding the plurality of pixel cell.
4. liquid crystal indicator as claimed in claim 1, it is characterized in that, this liquid crystal indicator also comprises a data drive unit, the data drive signal that this data drive unit produces in order to receive this clock pulse control module, and export the plurality of pixel cell of display data to electric property coupling according to this data drive signal.
5. liquid crystal indicator as claimed in claim 4, it is characterized in that, this clock signal, this top rake gate drive signal and this data drive signal all have one first kenel and trigger edge and one second kenel triggering edge, this second kenel of this data drive signal triggers this first kenel that edge is later than this clock signal and this top rake gate drive signal and triggers edge, and this second kenel of this data drive signal triggers edge and triggers edge early than this second kenel of this clock signal and this top rake gate drive signal.
6. the method for operating of a liquid crystal indicator, it is characterized in that, this liquid crystal indicator comprises multiple pixel cell, a clock pulse control module and a grid electrode drive module, this clock pulse control module is in order to export a clock signal and a data drive signal, and the method for operating of this liquid crystal indicator comprises the following steps:
This grid electrode drive module is made to receive this clock signal and produce a top rake gate drive signal according to this; And
The plurality of pixel cell is made to receive this top rake gate drive signal;
Wherein, this top rake gate drive signal carries out top rake according to this clock signal.
7. the method for operating of liquid crystal indicator as claimed in claim 6, it is characterized in that, this grid electrode drive module also comprises a drive element of the grid and a top rake circuit, makes this grid electrode drive module receive this clock signal and the step producing a top rake gate drive signal according to this also comprises:
This drive element of the grid is made to receive this clock signal and export a gate drive signal according to this;
This top rake circuit is made to receive this clock signal and this gate drive signal and carry out top rake to export a top rake gate drive signal with this clock signal to this gate drive signal.
8. the method for operating of liquid crystal indicator as claimed in claim 6, this grid electrode drive module also comprises a drive element of the grid and a top rake circuit, makes this grid electrode drive module receive this clock signal and the step producing a top rake gate drive signal according to this also comprises:
Make this top rake circuit receive this clock signal and a high voltage level, and according to this clock signal, top rake is carried out to produce a top rake high voltage level to this high voltage level; And
Make this drive element of the grid receive this clock signal and this top rake high voltage level, and produce this top rake gate drive signal according to this clock signal and this top rake high voltage level.
9. the method for operating of liquid crystal indicator as claimed in claim 6, it is characterized in that, this liquid crystal indicator further comprises a data drive unit, and the method for operating of this display panel is further comprising the steps of:
This data drive unit is made to export multiple display data to the plurality of pixel cell according to this data drive signal.
10. the method for operating of liquid crystal indicator as claimed in claim 6, it is characterized in that, this clock signal, this top rake gate drive signal and this data drive signal all have one first kenel and trigger edge and one second kenel triggering edge, this second kenel of this data drive signal triggers this first kenel that edge is later than this clock signal and this top rake gate drive signal and triggers edge, and this second kenel of this data drive signal triggers edge and triggers edge early than this second kenel of this clock signal and this top rake gate drive signal.
CN201511002576.2A 2015-11-17 2015-12-28 Liquid crystal display device and operation method thereof Pending CN105374337A (en)

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