CN105717677B - Shorten the method for IPS screen flicker and the equipment with IPS screen - Google Patents
Shorten the method for IPS screen flicker and the equipment with IPS screen Download PDFInfo
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- CN105717677B CN105717677B CN201610273813.7A CN201610273813A CN105717677B CN 105717677 B CN105717677 B CN 105717677B CN 201610273813 A CN201610273813 A CN 201610273813A CN 105717677 B CN105717677 B CN 105717677B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
Abstract
The present invention relates to a kind of method for shortening IPS screen flicker and equipment with IPS screen, described method includes following steps, choose screen sample, and light the screen sample, after the flashing of the screen sample is stablized, the stabilization polarity of capacitor in liquid crystal electric field circuit in the screen sample is measured after stablizing；The starting voltage for driving the liquid crystal electric field is provided for screen；It is described to start the voltage interior positive pressure charging time T to the capacitor of preset time T from the outset when the stable polarity is anode1Greater than negative pressure charging time T2；It is described to start the voltage interior positive pressure charging time T to the capacitor of preset time T from the outset when the stable polarity is cathode1Less than negative pressure charging time T2.The method of above-mentioned shortening IPS screen flicker, therefore the charging time of capacitor is shortened, and then the time is stablized in the flashing for shortening screen, improves subsequent production efficiency.
Description
Technical field
The present invention relates to display fields, more particularly to a kind of method for shortening IPS screen flicker and have IPS screen
Equipment.
Background technique
With the development of science and technology the display screen of electronic product is increasing, display effect also becomes the concern of people
Emphasis.IPS (In-Plane Switching, plane conversion) screen is with its wide viewing angle, high contrast, and when stable state flashes
(Flicker) advantages such as smaller are widely used in each electronic product.
However due to the reasons in structure of IPS screen itself, compared to generation liquid crystal electric field in its screen of other kinds of screen
Circuit in have biggish capacitor, for the capacitor before charging terminates, the voltage stability in circuit is poor, so enable be located at liquid
Liquid crystal arrangement in brilliant electric field is irregular, generates flashing drifting problem.It is embodied in when screen is just lighted, flashes tighter
Weight, Flicker value is larger, and with the growth of lighting time, Flicker value is gradually decreased, finally stable in a lower value.
The process is according to different screens, and the duration is from tens seconds to a few minutes etc..
The drifting problem of Flicker significantly impacts the usage experience of user, specifically, for example using IPS screen
In use, since client can frequently light/close screen, the drifting problem of Flicker can make in visitor mobile phone/plate
Family needs to wait can just see a more stable picture the tens seconds time to a few minutes when lighting screen.
Currently in order to shorten Flicker drift time, it in process of production usually all can be to the driving mould of every a piece of screen
The compensation burning of block progress Flicker.However since the presence of Flicker drift needs if to accomplish effective burning
Flicker drift to every screen terminates after stablizing, then the searching and burning of specific offset are carried out for the piece screen,
After needing could stablize to a few minutes within tens seconds due to screen, cause production efficiency low.
Summary of the invention
Based on this, it is necessary to provide a kind of shortening IPS screen sudden strain of a muscle that can shorten flashing drift time, improve production efficiency
The equipment of bright method and the IPS screen with this method production.
A method of shortening IPS screen flicker, include the following steps,
Screen sample is chosen, and lights the screen sample, after the flashing of the screen sample is stablized, is measured after stablizing
In the screen sample in liquid crystal electric field circuit capacitor stabilization polarity；
The starting voltage for driving the liquid crystal electric field is provided for screen；When the stable polarity is anode, the starting
Voltage is from the outset to the positive pressure charging time T of the capacitor in preset time T1Greater than negative pressure charging time T2；When the stabilization
It is described to start the voltage interior positive pressure charging time T to the capacitor of preset time T from the outset when polarity is cathode1Less than negative
Press charging time T2。
The preset time T is less than or equal to 2s in one of the embodiments,.
In one of the embodiments, when the stable polarity is anode, the positive pressure charging time T1It is born with described
Press charging time T2Ratio be 1:0.5, the preset time T be 1s~1.5s；
When the stable polarity is cathode, the positive pressure charging time T1With the negative pressure charging time T2Ratio be
0.5:1, the preset time T are 1s~1.5s.
In one of the embodiments, in preset time T, work as T1Or T2When being 0, the preset time T is less than or equal to
0.5s。
It in one of the embodiments, further include following steps,
After the preset time T of the starting voltage, the operating voltage is provided for the screen, the operating voltage is just
Press charging time T3Equal to negative pressure charging time T4；
The burning of flicker compensation value is carried out to the screen.
A kind of equipment with IPS screen, including screen and the drive module being connected with the screen,
The drive module is used to power for the screen, in preset time T of the drive module from starting power supply
The interior positive pressure charging time T to the capacitor in liquid crystal electric field circuit1With negative pressure charging time T2It is different.
The preset time T is less than or equal to 2s in one of the embodiments,.
The positive pressure charging time T in one of the embodiments,1With the negative pressure charging time T2Ratio be 1:0.5,
The preset time T is 1s~1.5s；
Or the positive pressure charging time T1With the negative pressure charging time T2Ratio be 0.5:1, the preset time T be 1s
~1.5s.
The drive module is direct current supply in one of the embodiments, and the preset time T is less than or equal to
0.5s。
The drive module is also used to after preset time T in one of the embodiments, provides work for the screen
Voltage, positive pressure charging time T of the operating voltage to the capacitor3Equal to negative pressure charging time T4。
The method of above-mentioned shortening IPS screen flicker, due within the charging time for the starting that screen lights, i.e. preset time
It is longer to the polarity charging time identical with the stabilization polarity of capacitor in T, i.e., enable the polarity of capacitor be easier to reach in charging process
Stabilization polarity when stable to the end, therefore the charging time of capacitor is shortened, and then the time is stablized in the flashing for shortening screen,
Improve subsequent production efficiency.
Detailed description of the invention
Fig. 1 is a preferred embodiment of the present invention the flow chart for shortening the method for IPS screen flicker；
Fig. 2 is the charging schematic diagram of one embodiment of the invention；
Fig. 3 is that time comparison diagram is stablized in the flashing of embodiment illustrated in fig. 2.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
As shown in Figure 1, it is a preferred embodiment of the present invention the flow chart for shortening the method for IPS screen flicker.
The method for shortening IPS screen flicker includes the following steps:
Step S201, screen sample is chosen, and lights institute's screen and states sample, after the flashing of screen sample is stablized, is measured
After stabilization in screen sample in liquid crystal electric field circuit capacitor stabilization polarity.
It is also understood that the sample for first choosing screen to be produced is tested before batch production, and obtain to be produced
In screen in liquid crystal electric field circuit capacitor stabilization polarity.
Due to differences such as material, production technologies, the polarity of capacitor of the different screens after flashing is stablized inside it is different,
I.e. it is different to stablize polarity for capacitor, but with a batch of screen after stabilization phase internal capacitance polarity be it is identical, therefore, we
Method needs first to test the sample of screen to be produced before batch production, and it is steady after flashing is stablized to obtain the batch screen
Determine polarity.
Step S202, the starting voltage of driving liquid crystal electric field is provided for screen, and lights screen；When the stabilization polarity of capacitor
When for anode, starting voltage is from the outset in preset time T, to the positive pressure charging time T of the capacitor in liquid crystal electric field circuit1Greatly
In negative pressure charging time T2；When stablizing polarity is cathode, starting voltage is from the outset in preset time T, to liquid crystal electric field
The positive pressure charging time T of capacitor in circuit1Less than negative pressure charging time T2。
It is also understood that after testing sample, then the batch screen is produced in batches.In production process
In, if step S201 measures the polarity of capacitor as anode, after bright screen is lighted, to liquid in the preset time T of initial time
Capacitor in brilliant electric field circuit persistently charges, and starts voltage to the positive pressure charging time T of capacitor1Greater than negative pressure charging time T2,
Wherein, T=T1+T2.If step S201 measure capacitor polarity be cathode when, after lighting screen, to liquid crystal in preset time T
Capacitor in electric field circuit persistently charges, and starts voltage to the positive pressure charging time T of capacitor1Less than negative pressure charging time T2,
In, T=T1+T2。
The method of above-mentioned shortening IPS screen flicker, due within the charging time for the starting that screen lights, i.e. preset time
It is longer to the polarity charging time identical with the stabilization polarity of capacitor in T, i.e., enable the polarity of capacitor be easier to reach in charging process
Stabilization polarity when stable to the end, therefore the charging time of capacitor is shortened, and then the time is stablized in the flashing for shortening screen,
Improve subsequent production efficiency.
According to the actual situation, preset time T is less than or equal to 2s, for example, 1s, 0.7s etc..
Specifically, in preset time T, when driving power is direct current, i.e. T1Or T2When being 0, preset time T is less than
Or it is equal to 0.5s.It is also understood that if stablizing polarity is anode, at this time positive pressure charging time T1It is equal with preset time T, and
Less than or equal to 0.5s, negative pressure charging time T2It is 0；If stablizing polarity is cathode, at this time negative pressure charging time T2With it is default when
Between T-phase etc., and be less than or equal to 0.5s, positive pressure charging time T1It is 0.For example, preset time T is 0.4s.
In this way, the capacitor charging speed that liquid crystal electric field on the one hand can be enabled is faster, on the other hand, it can guarantee that liquid crystal will not
It is polarized due to direct current, the screen reliability for enabling this method produce is higher.
In preset time T, when driving power is non-straight galvanic electricity, i.e. T1、T2When not being 0, it is positive if stablizing polarity
Pole, T1With T2Ratio it is bigger, it is shorter that the time is stablized in the flashing of screen, i.e. positive pressure charging time T1Charging time is longer, screen
It is shorter to flash the stable time；If stablizing polarity is cathode, T1With T2Ratio it is smaller, it is shorter that the time is stablized in the flashing of screen, i.e., negative
Press charging time T2Charging time is longer, and it is shorter that the time is stablized in the flashing of screen.In this way, the electricity of liquid crystal electric field can not only be improved
Capacity charge speed, and can and liquid crystal be avoided to be polarized.
In the present embodiment, when it is positive for stablizing polarity, positive pressure charging time T1With negative pressure charging time T2Ratio be 1:
0.5, preset time T is 1s~1.5s；When stablizing polarity is cathode, positive pressure charging time T1With negative pressure charging time T2Ratio
For 0.5:1, preset time T is 1s~1.5s.
Please refer to figs. 2 and 3 together, is respectively the charging schematic diagram of one embodiment of the invention, and flashes and stablize the time
Comparison diagram.
Further, when it is positive for stablizing polarity, positive pressure charging time T in each charge cycle in preset time T1For
13 μ s, negative pressure charging time T2For 6.5 μ s；When stable polarity is cathode, positive pressure charging in each charge cycle in preset time T
Time T1For 6.5 μ s, negative pressure charging time T2For 13 μ s.And the duration is less than 1s.
As shown in figure 3, A is to flash stable curve graph using conventional method, the flashing of screen stablizes the time as 37s, and B is
Stable curve graph is flashed using this method, the flashing stabilization time of screen is 9s, when can be obviously shortened the flashing stabilization of screen
Between, improve production efficiency.
Referring to Fig. 1.
Step S203, after the preset time T for starting voltage, operating voltage is provided for screen, at this time the positive pressure of operating voltage
Charging time T3Equal to negative pressure charging time T4.After the preset time T that persistently charges, starting voltage is adjusted to operating voltage, and
The positive and negative charging time of operating voltage is equal, to carry out conventional electron.
In the present embodiment, the positive pressure charging time T in each period in preset time T1With the period each after preset time T
Positive pressure charging time T3It is equal.
It should be noted that after preset time T, the flashing of screen reaches stable state in the present embodiment.Other embodiments
In, after preset time T, the flashing of screen can also be not up to stable state, and reach stable under conventional electron mode, i.e., just
Press charging time T3Equal to negative pressure charging time T4。
Step S204, after starting voltage being switched to operating voltage, the burning of flicker compensation value is carried out to screen.
In the present embodiment, screen carries out flicker compensation value burning to it after flashing is stablized.
Using the equipment of the screen after burning, normal operating voltage directly can be provided for it after striking, due to carrying out
Burning, therefore compared to the screen of burning is not carried out under conventional operating voltage and, it is shorter that the time is stablized in screen flicker.
The above method time before not only shortening burning, improves production efficiency, and ensure that the reliable of burning
Property, improve product yield.
The equipment of IPS screen with above method production, including screen and the drive module being connected with screen.Its
In, the power supply that drive module is used for as screen provides liquid crystal electric field, and screen is driven to light.In drive module from starting to power
To the positive pressure charging time T of the capacitor in liquid crystal electric field circuit in the preset time T risen1With negative pressure charging time T2It is different.Its
In, the equipment with IPS screen can show equipment for mobile phone, tablet computer etc..
Specifically, the flashing of i.e. screen is steady if being anode after capacitor charging in liquid crystal electric field circuit in screen
Capacitor is anode after fixed, then positive pressure charging time T1Greater than negative pressure charging time T2；If the electricity in liquid crystal electric field circuit in screen
It is cathode after capacity charge, i.e., capacitor is cathode after the flashing of screen is stablized, then positive pressure charging time T1It charges less than negative pressure
Time T2。
In the present embodiment, preset time T is less than or equal to 2s.For example, positive pressure charging time T1With negative pressure charging time T2's
Than for 1:0.5, preset time T is 1s~1.5s；Or positive pressure charging time T1With negative pressure charging time T2Ratio be 0.5:1, preset
Time T is 1s~1.5s.Specifically, positive pressure charging time T in each charge cycle in preset time T1For 13 μ s, negative pressure charging
Time T2For 6.5 μ s；Or positive pressure charging time T in each charge cycle in preset time T1For 6.5 μ s, negative pressure charging time T2
For 13 μ s.
In other embodiments, drive module may be direct current supply, i.e. T1Or T2One of them is 0, when presetting at this time
Between T be less than or equal to 0.5s.In this way, can further shorten flashing stablizes the time.
According to the actual situation, in the present embodiment, drive module is also used to after preset time T, provides work for the screen
Make voltage, positive pressure charging time T of the operating voltage to capacitor3Equal to negative pressure charging time T4.Specifically, by drive module
Register realize.
Further, in the present embodiment, the positive pressure charging time T in each period in preset time T1With preset time T it
The positive pressure charging time in each period is equal afterwards.That is, in preset time T, T1For 13 μ s, T2For 6.5 μ s, after preset time T,
The positive/negative-pressure charging time is 13 μ s.
The above-mentioned equipment with IPS screen, after drive module driving screen is lighted, to screen in the preset time T of starting
The positive pressure charging time T of capacitor in curtain1With negative pressure charging time T2Difference after preset time T, restores normal power supply, i.e. positive pressure is filled
Electric time T3With negative pressure charging time T4It is identical.
There is the charging time of the capacitor of the equipment of IPS screen shorter in this way, that is, reach that flash the stable time shorter, in turn
Improve the usage experience of user.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of method for shortening IPS screen flicker, which is characterized in that include the following steps,
Screen sample is chosen, and lights the screen sample, after the flashing of the screen sample is stablized, is measured described after stablizing
In screen sample in liquid crystal electric field circuit capacitor stabilization polarity；
The starting voltage for driving the liquid crystal electric field is provided for screen；When the stable polarity is anode, the starting voltage
From the outset to the positive pressure charging time T of the capacitor in preset time T1Greater than negative pressure charging time T2；When the stable polarity
When for cathode, the starting voltage is from the outset to the positive pressure charging time T of the capacitor in preset time T1It is filled less than negative pressure
Electric time T2。
2. it is according to claim 1 shorten IPS screen flicker method, which is characterized in that the preset time T be less than or
Equal to 2s.
3. the method according to claim 1 for shortening IPS screen flicker, which is characterized in that when the stable polarity is positive
When pole, the positive pressure charging time T1With the negative pressure charging time T2Ratio be 1:0.5, the preset time T be 1s~
1.5s；
When the stable polarity is cathode, the positive pressure charging time T1With the negative pressure charging time T2Ratio be 0.5:1,
The preset time T is 1s~1.5s.
4. the method according to claim 1 for shortening IPS screen flicker, which is characterized in that in preset time T, work as T1Or
T2When being 0, the preset time T is less than or equal to 0.5s.
5. the method according to claim 1 for shortening IPS screen flicker, which is characterized in that it further include following steps,
After the preset time T of the starting voltage, operating voltage is provided for the screen, when the positive pressure of the operating voltage charges
Between T3Equal to negative pressure charging time T4；
The burning of flicker compensation value is carried out to the screen.
6. a kind of equipment with IPS screen, which is characterized in that including screen and the driving mould being connected with the screen
Block,
The drive module is used to power for the screen, in the drive module in the preset time T from starting power supply, when
When being anode after the capacitor charging in liquid crystal electric field circuit, to the positive pressure charging time T of the capacitor1It charges greater than negative pressure
Time T2；When being cathode after the capacitor charging in liquid crystal electric field circuit, to the positive pressure charging time T of the capacitor1It is less than
Negative pressure charging time T2。
7. the equipment according to claim 6 with IPS screen, which is characterized in that the preset time T is less than or equal to
2s。
8. the equipment according to claim 6 with IPS screen, which is characterized in that
The positive pressure charging time T1With the negative pressure charging time T2Ratio be 1:0.5, the preset time T be 1s~1.5s；
Or the positive pressure charging time T1With the negative pressure charging time T2Ratio be 0.5:1, the preset time T be 1s~
1.5s。
9. the equipment according to claim 6 with IPS screen, which is characterized in that the drive module is direct current supply,
The preset time T is less than or equal to 0.5s.
10. the equipment according to claim 6 with IPS screen, which is characterized in that the drive module is also used to pre-
If after time T, providing operating voltage, positive pressure charging time T of the operating voltage to the capacitor for the screen3Equal to negative
Press charging time T4。
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| CN201610273813.7A CN105717677B (en) | 2016-04-27 | 2016-04-27 | Shorten the method for IPS screen flicker and the equipment with IPS screen |
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| CN201610273813.7A CN105717677B (en) | 2016-04-27 | 2016-04-27 | Shorten the method for IPS screen flicker and the equipment with IPS screen |
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|---|---|---|---|---|
| CN101231837A (en) * | 2004-06-23 | 2008-07-30 | 钰瀚科技股份有限公司 | Apparatus and method for speedup driving liquid crystal display device |
| CN104303225A (en) * | 2012-06-01 | 2015-01-21 | 夏普株式会社 | Method for driving liquid crystal display device, liquid crystal display device, and mobile instrument provided with same |
| CN104347048A (en) * | 2014-11-21 | 2015-02-11 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and gray scale voltage compensating method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3918399B2 (en) * | 2000-04-28 | 2007-05-23 | 富士通株式会社 | Liquid crystal element |
| TWI253051B (en) * | 2004-10-28 | 2006-04-11 | Quanta Display Inc | Gate driving method and circuit for liquid crystal display |
-
2016
- 2016-04-27 CN CN201610273813.7A patent/CN105717677B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231837A (en) * | 2004-06-23 | 2008-07-30 | 钰瀚科技股份有限公司 | Apparatus and method for speedup driving liquid crystal display device |
| CN104303225A (en) * | 2012-06-01 | 2015-01-21 | 夏普株式会社 | Method for driving liquid crystal display device, liquid crystal display device, and mobile instrument provided with same |
| CN104347048A (en) * | 2014-11-21 | 2015-02-11 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and gray scale voltage compensating method thereof |
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