CN107450208A - A kind of MIPI liquid crystal modules OTP method for burn-recording - Google Patents
A kind of MIPI liquid crystal modules OTP method for burn-recording Download PDFInfo
- Publication number
- CN107450208A CN107450208A CN201710890246.4A CN201710890246A CN107450208A CN 107450208 A CN107450208 A CN 107450208A CN 201710890246 A CN201710890246 A CN 201710890246A CN 107450208 A CN107450208 A CN 107450208A
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- CN
- China
- Prior art keywords
- liquid crystal
- mipi
- crystal modules
- mipi liquid
- measured
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- 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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Classifications
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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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
-
- 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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
Abstract
The invention discloses a kind of MIPI liquid crystal modules OTP method for burn-recording, includes master controller, MIPI bridging chips, photoelectric conversion probe, voltage amplification arithmetic unit, AD conversion module, MIPI liquid crystal modules to be measured；Comprise the following steps：The master controller sends test parameter and gives MIPI bridging chips；The MIPI bridging chips receive test parameter and are transferred to MIPI liquid crystal modules to be tested after being changed；The MIPI liquid crystal modules to be measured are lit, and the picture of the MIPI liquid crystal modules to be measured switches to flicker degree picture；The value of the photoelectric conversion probe collection MIPI liquid crystal module flicker degrees, and it is converted into voltage signal；The voltage signal amplifies by voltage amplification arithmetic unit；Eliminate because human factor causes to the inconsistent of flicker degree minimum value criterion, reduce the error of manual operation, improve OTP burnings efficiency and accuracy rate.
Description
Technical field
The present invention relates to a kind of MIPI liquid crystal modules OTP method for burn-recording.
Background technology
, because operation principle determines, ficker scintillations always be present in display picture in liquid crystal module, and
When Flicker flicker degrees are bigger, the visual fatigue of people and other discomforts can be caused, and this flicker degree is mainly and liquid crystal mould
The internal magnitude of voltage VCOM of group is relevant.VCOM is a magnitude of voltage at liquid crystal module control panel end, and control drive circuit is deposited
In a positive and negative reversal voltage, Vcom needs to be arranged on the bosom point of this positive and negative reversal voltage, by adjusting Vcom value,
Flicker (flicker degree) value of module can be adjusted to minimum, module displays effect is reached best.
And during current optimal VCOM value OTP, it is necessary to operating personnel manually button constantly changes VCOM values, MIPI to be measured
The VCOM voltages of liquid crystal module are changed, and the Flicker flicker degrees of module are also accordingly changed, and operating personnel are observed by people
The change of flicker program of the MIPI liquid crystal modules now corresponding to VCOM numerical value is examined, the Flicker of MIPI liquid crystal modules is dodged
Optimum state is arrived in bright degree regulation, at the same again this optimal VCOM value of manual key OTP into module.Operating method originally is complicated,
High to producing line personnel requirement, personnel easily malfunction when adjusting optimal VCOM values, and after longevity of service, operating personnel easily occur
Visual fatigue, so as to mistake occur.
The content of the invention
Deficiency, it is an object of the invention to provide a kind of MIPI liquid crystal modules OTP method for burn-recording, is eliminated because of people for more than
Cause for factor to the inconsistent of flicker degree minimum value criterion, reduce the error of manual operation, improve OTP burnings efficiency and
Accuracy rate.
The purpose of the present invention is realized by such technical scheme, a kind of MIPI liquid crystal modules OTP method for burn-recording, is wrapped
Master controller, MIPI bridging chips, photoelectric conversion probe, voltage amplification arithmetic unit, AD conversion module, MIPI liquid crystal to be measured are included
Module；Comprise the following steps：
Step 1：The master controller sends test parameter and gives MIPI bridging chips；
Step 2：The MIPI bridging chips receive test parameter and are transferred to MIPI liquid crystal mould to be tested after being changed
Group；
Step 3：The MIPI liquid crystal modules to be measured are lit, and the picture of the MIPI liquid crystal modules to be measured switches to sudden strain of a muscle
Bright degree picture；
Step 4：The value of the photoelectric conversion probe collection MIPI liquid crystal module flicker degrees, and it is converted into voltage signal；
Step 5：The voltage signal amplifies by voltage amplification arithmetic unit；
Step 6：Voltage signal is converted to data signal by the AD conversion module, and data signal is fed back into master control
Device processed；
Step 7：The master controller is added from computing is subtracted, to control certainly by the VCOM values to MIPI liquid crystal modules to be measured
The value of the flicker degree of MIPI liquid crystal modules flicker degree picture to be measured is made, and the value of flicker degree is gathered by photoelectric conversion probe；
Step 8：The Computing obtains flicker degree minimum value and corresponding VCOM values, and automatic OTP is burnt to
MIPI liquid crystal modules to be measured.
Further, the master controller is ARM9 master controllers.
Further, the OTP flows of MIPI modules are by VCOM values programming to module driving IC.
Further, AD conversion module is converted to voltage signal the data signal of sixteen bit described in the step 6.
Further, the step 8 Computer contrasts to obtain flicker degree minimum value and corresponding VCOM by computing
Value.
Further, the VCOM values are a magnitude of voltage at liquid crystal module control panel end.
Due to using above-mentioned technical proposal, the present invention has the advantage that：Test ginseng is sent by ARM9 master controllers
Number gives MIPI bridging chips, and MIPI bridging chips are transferred to MIPI liquid crystal modules to be tested, now MIPI to be measured after conversion
Liquid crystal module is lit, and the picture of MIPI liquid crystal modules to be measured is switched into flicker degree picture, and now photoelectric conversion probe gathers
The value of MIPI liquid crystal module flicker degrees, and voltage signal is converted into, after the amplification of voltage amplification arithmetic unit, into AD conversion
Module is converted to data signal, feeds back to ARM9 master controllers.ARM9 master controllers by VCOM values from plus from subtracting computing,
To control the value of the flicker degree of MIPI liquid crystal modules Flicker pictures to be measured so that eliminate because human factor causes to flicker degree
Minimum value criterion it is inconsistent, reduce the error of manual operation, improve OTP burnings efficiency and accuracy rate.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can be wanted by following specification and right
Book is sought to realize and obtain.
Brief description of the drawings
The brief description of the drawings of the present invention is as follows.
Fig. 1 is flow chart of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figure 1, the invention discloses a kind of MIPI liquid crystal modules OTP method for burn-recording, including ARM9 master controllers,
MIPI bridging chips, photoelectric conversion probe, voltage amplification arithmetic unit, AD conversion module, MIPI liquid crystal modules to be measured.
Because liquid crystal module is in display picture, because operation principle determines, ficker scintillations always be present, and
When Flicker flicker degrees are bigger, the visual fatigue of people and other discomforts can be caused, and this flicker degree is mainly and liquid crystal mould
The internal magnitude of voltage VCOM of group is relevant.VCOM (public electrode voltages) is a magnitude of voltage at liquid crystal module control panel end, control
There is a positive and negative reversal voltage in making sheet drive circuit, Vcom needs to be arranged on the bosom point of this positive and negative reversal voltage, lead to
Adjustment Vcom value is crossed, flicker (flicker degree) value of module can be adjusted to minimum, module displays effect is reached best.
Flicker degree is adjusted to optimum value by adjusting the VCOM voltages of module in module production process, according still further to MIPI modules
OTP flows make liquid crystal module directly invoke optimal VCOM values at work by optimal VCOM values programming to module driving IC, from
And ensureing that the flicker degree of module is minimum, display effect is best.
The present invention takes following methods；Main frame is powered, and ARM9 master controllers send test parameter and give MIPI bridging chips,
MIPI bridging chips are transferred to MIPI liquid crystal modules to be tested after conversion, and now MIPI liquid crystal modules to be measured are lit, will
The picture of MIPI liquid crystal modules to be measured switches to Flicker pictures, now the flicker of photoelectric conversion probe collection MIPI liquid crystal modules
The value of degree, and it is converted into voltage signal；
Again after the amplification of voltage amplification arithmetic unit, data signal is converted into AD conversion module, feeds back to ARM9 master
Controller.ARM9 master controllers pass through adding certainly from computing is subtracted, to control MIPI liquid crystal modules Flicker to be measured to draw to VCOM values
The Flicker (flicker degree) in face value, and Flicker values are gathered by photoelectric conversion probe, eventually pass through internal arithmetic contrast
Flicker minimum values and corresponding optimal VCOM values are obtained, and automatic OTP is burnt to MIPI liquid crystal modules to be measured.
Further, the OTP flows of MIPI modules are by VCOM values programming to module driving IC.
AD conversion module is converted to voltage signal the data signal of sixteen bit.
Computer contrasts to obtain flicker degree minimum value and corresponding VCOM values by computing.
VCOM values are a magnitude of voltage at liquid crystal module control panel end.
This method is used to eliminate because human factor causes to the inconsistent of Flicker minimum value criterion, reduces artificial
The error of operation, improve OTP burnings efficiency and accuracy rate.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should cover in the present invention
Right among.
Claims (6)
- A kind of 1. MIPI liquid crystal modules OTP method for burn-recording, it is characterised in that：Include master controller, MIPI bridging chips, photoelectricity Conversion probe, voltage amplification arithmetic unit, AD conversion module, MIPI liquid crystal modules to be measured；Comprise the following steps：Step 1：The master controller sends test parameter and gives MIPI bridging chips；Step 2：The MIPI bridging chips receive test parameter and are transferred to MIPI liquid crystal modules to be tested after being changed；Step 3：The MIPI liquid crystal modules to be measured are lit, and the picture of the MIPI liquid crystal modules to be measured switches to flicker degree Picture；Step 4：The value of the photoelectric conversion probe collection MIPI liquid crystal module flicker degrees, and it is converted into voltage signal；Step 5：The voltage signal amplifies by voltage amplification arithmetic unit；Step 6：Voltage signal is converted to data signal by the AD conversion module, and data signal is fed back into master controller；Step 7：The master controller, from plus from subtract computing, is treated by the VCOM values to MIPI liquid crystal modules to be measured to control The value of the flicker degree of MIPI liquid crystal module flicker degree pictures is surveyed, and the value of flicker degree is gathered by photoelectric conversion probe；Step 8：The Computing obtains flicker degree minimum value and corresponding VCOM values, and automatic OTP be burnt to it is to be measured MIPI liquid crystal modules.
- 2. MIPI liquid crystal modules OTP method for burn-recording according to claim 1, it is characterised in that：The master controller is ARM9 master controllers.
- 3. MIPI liquid crystal modules OTP method for burn-recording according to claim 1, it is characterised in that：The MIPI liquid crystal modules OTP flows by VCOM values be burnt to module driving IC in.
- 4. MIPI liquid crystal modules OTP method for burn-recording according to claim 1, it is characterised in that：Described in the step 6 AD conversion module is converted to voltage signal the data signal of sixteen bit.
- 5. MIPI liquid crystal modules OTP method for burn-recording according to claim 1, it is characterised in that：Calculated in the step 8 Machine contrasts to obtain flicker degree minimum value and corresponding VCOM values by computing.
- 6. MIPI liquid crystal modules OTP method for burn-recording according to claim 1, it is characterised in that：The VCOM values are liquid crystal One magnitude of voltage at panel module control board end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710890246.4A CN107450208A (en) | 2017-09-27 | 2017-09-27 | A kind of MIPI liquid crystal modules OTP method for burn-recording |
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| CN201710890246.4A CN107450208A (en) | 2017-09-27 | 2017-09-27 | A kind of MIPI liquid crystal modules OTP method for burn-recording |
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| CN107450208A true CN107450208A (en) | 2017-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491317A (en) * | 2019-07-09 | 2019-11-22 | 深圳市汉弘达电子科技有限公司 | Automatic burning device and method are managed in TFT flashing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001004446A (en) * | 1999-06-18 | 2001-01-12 | Leader Electronics Corp | Method and apparatus for measuring flicker of liquid crystal panel |
| CN103018934A (en) * | 2012-12-07 | 2013-04-03 | 京东方科技集团股份有限公司 | Liquid crystal module testing device |
| CN103606361A (en) * | 2013-11-30 | 2014-02-26 | 无锡博一光电科技有限公司 | Method and device for automatically regulating flickers of liquid crystal display module |
| CN103616775A (en) * | 2013-11-22 | 2014-03-05 | 武汉精立电子技术有限公司 | Method for automatically adjusting Auto-Flicker of liquid crystal module on basis of machine vision |
| CN104517554A (en) * | 2014-12-17 | 2015-04-15 | 武汉精测电子技术股份有限公司 | Vcom (voltage of common electrode) adjustment device and method of MIPI (mobile industry processor interface) liquid crystal module on basis of FPGA (field programmable gate array) |
| CN105607314A (en) * | 2016-03-17 | 2016-05-25 | 浙江新力光电科技有限公司 | Method and device for calibrating flicker degree of liquid crystal display module |
-
2017
- 2017-09-27 CN CN201710890246.4A patent/CN107450208A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001004446A (en) * | 1999-06-18 | 2001-01-12 | Leader Electronics Corp | Method and apparatus for measuring flicker of liquid crystal panel |
| CN103018934A (en) * | 2012-12-07 | 2013-04-03 | 京东方科技集团股份有限公司 | Liquid crystal module testing device |
| CN103616775A (en) * | 2013-11-22 | 2014-03-05 | 武汉精立电子技术有限公司 | Method for automatically adjusting Auto-Flicker of liquid crystal module on basis of machine vision |
| CN103606361A (en) * | 2013-11-30 | 2014-02-26 | 无锡博一光电科技有限公司 | Method and device for automatically regulating flickers of liquid crystal display module |
| CN104517554A (en) * | 2014-12-17 | 2015-04-15 | 武汉精测电子技术股份有限公司 | Vcom (voltage of common electrode) adjustment device and method of MIPI (mobile industry processor interface) liquid crystal module on basis of FPGA (field programmable gate array) |
| CN105607314A (en) * | 2016-03-17 | 2016-05-25 | 浙江新力光电科技有限公司 | Method and device for calibrating flicker degree of liquid crystal display module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491317A (en) * | 2019-07-09 | 2019-11-22 | 深圳市汉弘达电子科技有限公司 | Automatic burning device and method are managed in TFT flashing |
| CN110491317B (en) * | 2019-07-09 | 2024-01-30 | 深圳市汉弘达电子科技有限公司 | LCM flash control automatic burning device and LCM flash control automatic burning method |
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Application publication date: 20171208 |