CN106019647B - Liquid crystal module 1-wire writing system and method - Google Patents
Liquid crystal module 1-wire writing system and method Download PDFInfo
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- CN106019647B CN106019647B CN201610292040.7A CN201610292040A CN106019647B CN 106019647 B CN106019647 B CN 106019647B CN 201610292040 A CN201610292040 A CN 201610292040A CN 106019647 B CN106019647 B CN 106019647B
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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
Abstract
The present invention relates to liquid crystal module detection technique fields, more particularly to a kind of liquid crystal module 1-wire write-in and write-in functions test macro and method, it including man-machine module and is the system power supply module of system power supply, it further include main control module, D/A converter module and controllable electric power module, the controllable electric power module is used to power for the TCON plate of LCD module under test, the man-machine module is used to receive the vcom signal of main control module feedback and sends vcom operational order to main control module, and the main control module passes through I2Vcom operation signal is sent to D/A converter module by C-channel, and vcom operation signal is sent to the TCON plate of LCD module under test by 1-wire bus by the D/A converter module.Fuselage is lighter, and mobility is stronger, and convenient working person's operation, cost is relatively low.1-wire adjusting and write-in are carried out to mould group by keypad operation, tune, which writes data, can be displayed in LED display, display interface simple, intuitive.
Description
Technical field
The present invention relates to liquid crystal module detection technique fields, and in particular to a kind of liquid crystal module 1-wire writing system and side
Method.
Background technique
1-Wire bus is a simple signal circuit, can realize master controller by a shared data line
It is communicated with one or more from the half-duplex bidirectional between device.Liquid crystal module 1-Wire function is based on 1-wire bus
It reads and adjusts the function that write-in liquid crystal VCOM voltage has reached calibrating crystal mould group flicker level.
Liquid crystal module 1-wire write-in at present is required to connect PG module (picture signal generation module) one by one by computer
Mould group is written, and operation is relatively complicated, and takes a long time, and write efficiency is low.
And the detection for write-in functions, it is all to control liquid crystal module detection system by computer to be tested, such survey
There are following drawbacks for method for testing:
(1) computer controlled interface content is cumbersome, and operating process is complex, influences testing efficiency；
(2) not easily shifted since computer body is heavier, there is significant limitation for the operation of tester；
(3) computer higher cost may be needed to use multiple computers, be wanted to testing cost for the test of large batch of mould group
Ask very high.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of liquid crystal module 1-wire writing system and method, the device
It is able to achieve no write de-lay with method, and removes other function to the operation interference of tester, simplifies, makes 1-wire function
Detection mode and result it is simple and clear, solve to reduce testing cost since testing tool is to operator's bring limitation.
For a kind of liquid crystal module 1-wire writing system of the present invention, technical solution is, comprising: man-machine module and to be
The system power supply module of system power supply, further includes main control module, D/A converter module and controllable electric power module, the controllable electric power mould
Block be used for for LCD module under test TCON plate power, the man-machine module be used for receive main control module feedback vcom signal with
And vcom operational order is sent to main control module, the main control module passes through I2Vcom operation signal is sent to digital-to-analogue by C-channel
Vcom operation signal is sent to the TCON of LCD module under test by 1-wire bus by conversion module, the D/A converter module
Plate.
Further, the man-machine module includes operation panel and display screen, the vcom operational order of the main control module
The connection of the vcom operational order output end of input terminal and operation panel, the vcom signal output end and display screen of the main control module
Vcom signal input part connection.
Further, the vcom operation signal output end of the D/A converter module is connected with amplifier, the amplifier
Signal output end connect with 1-wire bus, the amplifier is any one in 1~N times of amplifier.
It further, further include time-sequence control module, the timing control signal input terminal of the time-sequence control module and master
The timing control signal output end connection of module is controlled, the time-sequence control module controls I according to timing control signal2C-channel is opened
It opens, the sequence that 1-wire bus is opened, controllable electric power module is amplifier and the power supply of LCD module under test TCON plate.
It further, further include that module occurs for picture signal, described image signal generating module is used to be liquid crystal mould to be measured
Group point screen, generates flashing picture.
Liquid crystal module 1-wire wiring method a kind of for the present invention, technical solution are that controllable electric power module is to be measured
The TCON plate of liquid crystal module is powered, and the IC type of LCD module under test TCON plate is selected by operation panel, is adjusted into vcom
Mode；
Vcom regulating command is sent to main control module by way of adding and subtracting vcom value on operation panel, main control module will
Vcom adjustment signal is sent to D/A converter module, and vcom adjustment signal is converted into corresponding analog voltage by D/A converter module
Waveform is simultaneously exported by 1-wire bus to LCD module under test TCON plate, and LCD module under test TCON plate carries out vcom voltage tune
The vcom value is subjected to write-in storage after section.
Further, connection image signal generating module lights LCD module under test, and LCD module under test is switched to sudden strain of a muscle
Bright picture, the IC type of LCD module under test TCON plate is selected by operation panel, into vcom shaping modes；
Vcom regulating command is sent to main control module by way of adding and subtracting vcom value on operation panel, main control module will
Vcom adjustment signal is sent to D/A converter module, and vcom adjustment signal is converted into corresponding analog voltage by D/A converter module
Waveform is simultaneously exported by 1-wire bus to LCD module under test, is observed LCD module under test screen flicker degree, is constantly adjusted
Section, until vcom value at this time is written LCD module under test when LCD module under test screen flicker degree reaches minimum.
Further, the LCD module under test TCON plate restarts LCD module under test TCON plate for after the write-in of vcom value,
Vcom shaping modes are again introduced into, if the vcom value that the vcom value that display screen is shown is sent before being operation panel, illustrates 1-
Wire write-in functions are good.
Further, the analog voltage waveform of the D/A converter module output is total through 1-wire after being amplified by amplifier
Line output.
Further, after connecting the LCD module under test TCON plate, time-sequence control module controls controllable electric power module
For the power supply of LCD module under test TCON plate；
After operation panel sends vcom regulating command to main control module, the time-sequence control module is believed according to timing control
Number I is opened in order2C-channel, 1-wire bus run and control controllable electric power module are amplifier power supply.
Beneficial effects of the present invention: this device is detached from PG module and directly carries out 1-wire adjusting to the TCON plate of liquid crystal module
With write-in, the time of connection PG module is saved, working efficiency is greatly improved.A variety of test journeys can be switched in program of device
Formula, puts a plurality of mould groups, and applicability is extensive.In addition, replacing computer using operation panel and display screen, fuselage is lighter, mobility
Relatively strong, convenient working person's operation, cost is relatively low for computer, can reduce testing cost.This system tune is write data and can be shown
Show in LED display, display interface simple, intuitive；PG can be detached from, screening directly is carried out to LCD module under test TCON plate,
Detect 1-wire write-in functions defective products.
Detailed description of the invention
Fig. 1 is that liquid crystal module 1-wire of the present invention adjusts write-in functions test macro connection schematic diagram；
In figure: 1-main control module, 2-D/A converter modules, 3-amplifiers, 4-operation panels, 5-display screens, 6-
System power supply module, 7-controllable electric power modules, 8-time-sequence control modules, 9-PG modules, 10-liquid crystal modules.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Write-in functions test system module connection figure is adjusted for liquid crystal module 1-wire as shown in Figure 1 comprising master control mould
Block 1, D/A converter module 2, amplifier 3, operation panel 4, display screen 5, system power supply module 6, controllable electric power module 7, timing
Control module 8, PG module 9, liquid crystal module 10.
The vcom operational order input terminal of main control module 1 is connect with the vcom operational order output end of operation panel 4, master control
The vcom signal output end of module 1 is connect with the vcom signal input part of display screen 5.The vcom operation signal of main control module 1 is defeated
Outlet passes through I2C-channel is connect with the vcom operation signal input terminal of D/A converter module 2, the vcom behaviour of D/A converter module 2
Make signal output end to connect with amplifier 3, is connected to LCD module under test 10 finally by 1-wire bus.220v alternating current warp
AC-DC module is converted to DC power supply (3.3v), and is exported respectively to system power supply module 6 and controllable electric power module 7, system electricity
Source module 6 is that main control module 1 provides basic operating voltage (such as 5v, 3.3v, 1.8v), and controllable electric power module 7 is mould group TCON
Plate provides 5v/12v voltage, and provides 15v voltage in vcom write-in.Wherein, amplifier 3 can according to need 1~n times of selection
Amplifier.
1-wire adjusting, write-in and the write-in functions of LCD module under test are detected, it can be right based on PG module 9
LCD module under test is detected, can also the TCON plate individually to LCD module under test detect.The first embodiment
To be detected based on PG module 9 to LCD module under test, process is as follows:
Connection PG module 9 lights LCD module under test 10, LCD module under test 10 is switched to flashing picture, connecting this is
System selects the IC type (such as IML7991) of LCD module under test 10TCON plate by operation panel 4, into vcom shaping modes,
Main control module 1 obtains the current vcom value of LCD module under test 10 and is sent to the display output of display screen 5 simultaneously.If obtain at
Function, then display screen 5 shows current VCOM value, and wire rod connection failure is prompted if unsuccessful.
After showing that screen display 5 shows current VCOM value, RS232 is used by way of adding and subtracting vcom value on operation panel 4
Communication protocol sends vcom regulating command to main control module 1, after main control module 1 receives vcom regulating command, to timing control
8 transmission timing of module controls signal, and time-sequence control module 8 successively opens I according to timing control signal in order2C-channel, 1-
Wire bus run and control controllable electric power module 8 are that amplifier 3 provides 12V voltage.Main control module 1 passes through I2C-channel will
Vcom adjustment signal is sent to D/A converter module 2, and vcom adjustment signal is converted into simulating electricity accordingly by D/A converter module 2
Corrugating is simultaneously exported by 1-wire bus to LCD module under test 10, if 10 screen of LCD module under test flashes, is said
The 1-wire regulatory function of bright LCD module under test 10 is normal, and the vcom value is written after adjusting, and by the vcom
Value feeds back to display screen display output.
After confirming that regulatory function is normal, restarts LCD module under test 10, be again introduced into vcom shaping modes, if display screen 5
The vcom value that the vcom value of display is sent before being operation panel 4, then illustrate the 1-wire write-in functions of LCD module under test 10
Normally.It can also stand in client check or whether switchback to flashing picture observation vcom value is written success again.
During the vcom voltage value to LCD module under test is adjusted, operation panel 4 is operated, adds and subtracts vcom value
Minimum to module displays flicker degree, this optimum value is written in operation operation panel 4, and the debugging of mould group optimum state may be implemented.
Second of embodiment is to be detached from PG module, and individually LCD module under test TCON plate is written and is detected,
Process is as follows:
System and LCD module under test TCON plate are connected, individually detection mould group TCON template die is selected on operation panel 4
Formula selects the IC type of LCD module under test 10TCON plate by operation panel 4, into vcom shaping modes.Main control module 1 is given
8 transmission timing of time-sequence control module controls signal, and it is LCD module under test that time-sequence control module 8, which controls controllable electric power module 7,
TCON plate exports 5v or 12v voltage, while main control module 1 obtains the current vcom value of LCD module under test 10 and is sent to display
5 display output of screen；
After display screen 5 shows current VCOM value, RS232 is used by way of adding and subtracting vcom value on operation panel 4
Communication protocol sends vcom regulating command to main control module 1, after main control module 1 receives vcom regulating command, to timing control
8 transmission timing of module controls signal, and time-sequence control module 8 successively opens I according to timing control signal in order2C-channel, 1-
Wire bus run and control controllable electric power module 7 are that amplifier 3 provides 12V voltage.Main control module 1 passes through I2C-channel will
Vcom adjustment signal is sent to D/A converter module 2, and vcom adjustment signal is converted into simulating electricity accordingly by D/A converter module 2
Corrugating is simultaneously exported by 1-wire bus to LCD module under test TCON plate, this vcom is written in LCD module under test TCON plate
Value, and the vcom value is fed back into display screen display output.
It is powered on again after the power-off of LCD module under test TCON plate, into vcom shaping modes, if the vcom that display screen 5 is shown
The vcom value that value is sent before being operation panel 4, then illustrate that the 1-wire write-in functions of LCD module under test 10 are normal.
The above description is merely a specific embodiment, it is noted that anyone skilled in the art exists
Disclosed herein technical scope in, any changes or substitutions that can be easily thought of, should all cover protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of liquid crystal module 1-wire writing system including man-machine module and is the system power supply module (6) of system power supply,
It is characterized in that: further including main control module (1), D/A converter module (2) and controllable electric power module (7), the main control module (1) is logical
Cross I2Vcom operation signal is sent to D/A converter module (2) by C-channel, and the D/A converter module (2) is total by 1-wire
Vcom operation signal is sent to the TCON plate of LCD module under test (10) by line, and the controllable electric power module (7) is used to be to be measured
The TCON plate of liquid crystal module (10) is powered, the man-machine module be used to receive main control module (1) feedback vcom signal and to
Main control module (1) sends vcom operational order；The man-machine module includes operation panel (4) and display screen (5), the master control mould
The vcom operational order input terminal of block (1) is connect with the vcom operational order output end of operation panel (4), the main control module
(1) vcom signal output end is connect with the vcom signal input part of display screen (5).
2. liquid crystal module 1-wire writing system as described in claim 1, it is characterised in that: the D/A converter module (2)
Vcom operation signal output end be connected with amplifier (3), the signal output end of the amplifier (3) and 1-wire bus connect
It connects, the amplifier (3) is any one in 1~N times of amplifier.
3. liquid crystal module 1-wire writing system as claimed in claim 2, it is characterised in that: further include time-sequence control module
(8), the timing control signal output end of the timing control signal input terminal of the time-sequence control module (8) and main control module (1)
Connection, the time-sequence control module (8) control I according to timing control signal2C-channel is opened, 1-wire bus is opened, controllable electric
The sequence that source module (7) is amplifier (3) and LCD module under test TCON plate is powered.
4. liquid crystal module 1-wire writing system as described in claim 1, it is characterised in that: further include that mould occurs for picture signal
Block (9), described image signal generating module (9) are used for as LCD module under test (10) point screen, generation flashing picture.
5. a kind of liquid crystal module 1-wire wiring method, it is characterised in that: for implementing the write-in side the liquid crystal module 1-wire
The liquid crystal module 1-wire writing system of method includes main control module (1), D/A converter module (2) and operation panel (4)；
It powers for the TCON plate of LCD module under test (10), selects LCD module under test (10) TCON plate by operation panel (4)
IC type, into vcom shaping modes；
Vcom regulating command, main control module are sent to main control module (1) by way of adding and subtracting vcom value on operation panel (4)
(1) vcom adjustment signal is sent to D/A converter module (2), vcom adjustment signal is converted into phase by D/A converter module (2)
The analog voltage waveform answered simultaneously is exported by 1-wire bus to LCD module under test TCON plate, LCD module under test TCON plate into
The vcom value is subjected to write-in storage after the adjusting of row vcom voltage.
6. a kind of liquid crystal module 1-wire wiring method, it is characterised in that: for implementing the write-in side the liquid crystal module 1-wire
The liquid crystal module 1-wire writing system of method includes main control module (1), D/A converter module (2) and operation panel (4) and image
Signal generating module (9)；
LCD module under test (10) are lighted in connection image signal generating module (9), select liquid crystal mould to be measured by operation panel (4)
The IC type of group (10) TCON plate, into vcom shaping modes；
Vcom regulating command, main control module are sent to main control module (1) by way of adding and subtracting vcom value on operation panel (4)
(1) vcom adjustment signal is sent to D/A converter module (2), vcom adjustment signal is converted into phase by D/A converter module (2)
The analog voltage waveform answered simultaneously is exported by 1-wire bus to LCD module under test (10), and LCD module under test (10) screen is observed
Curtain flicker degree, is constantly adjusted, until when LCD module under test (10) screen flicker degree reaches minimum, LCD module under test
(10) vcom value at this time is written.
7. liquid crystal module 1-wire wiring method as claimed in claim 5, it is characterised in that: the liquid crystal module 1-wire writes
Entering system includes that LCD module under test TCON is restarted after vcom value is written the LCD module under test TCON plate in display screen (5)
Plate is again introduced into vcom shaping modes, if the vcom value that the vcom value of display screen (5) display is sent before being operation panel (4),
Then illustrate that 1-wire write-in functions are good.
8. liquid crystal module 1-wire wiring method as claimed in claim 5, which is characterized in that the liquid crystal module 1-wire writes
Entering system includes amplifier (3), after the analog voltage waveform of D/A converter module (2) output is amplified by amplifier (3)
It is exported through 1-wire bus.
9. liquid crystal module 1-wire wiring method as claimed in claim 8, it is characterised in that: the liquid crystal module 1-wire writes
Entering system includes controllable electric power module (7) and time-sequence control module (8)；
After connecting the LCD module under test TCON plate, it is prepare liquid that time-sequence control module (8), which controls controllable electric power module (7),
Brilliant mould group TCON plate power supply；
After operation panel (4) sends vcom regulating command to main control module (1), the time-sequence control module (8) is according to timing
Control signal opens I in order2C-channel, 1-wire bus run and control controllable electric power module (7) are amplifier (3) power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292040.7A CN106019647B (en) | 2016-05-05 | 2016-05-05 | Liquid crystal module 1-wire writing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292040.7A CN106019647B (en) | 2016-05-05 | 2016-05-05 | Liquid crystal module 1-wire writing system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106019647A CN106019647A (en) | 2016-10-12 |
| CN106019647B true CN106019647B (en) | 2019-06-07 |
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ID=57081222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610292040.7A Active CN106019647B (en) | 2016-05-05 | 2016-05-05 | Liquid crystal module 1-wire writing system and method |
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| CN (1) | CN106019647B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106997743A (en) * | 2017-06-02 | 2017-08-01 | 江苏久正光电有限公司 | A kind of test device of Thin Film Transistor-LCD |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100422166B1 (en) * | 2003-07-23 | 2004-03-11 | (주)테이크시스템즈 | Inverter for checking lcd module |
| CN1916699A (en) * | 2005-08-19 | 2007-02-21 | 群康科技(深圳)有限公司 | System and method for testing image plane on liquid crystal |
| CN201765405U (en) * | 2010-05-18 | 2011-03-16 | 创维液晶器件(深圳)有限公司 | Liquid crystal module testing device and liquid crystal module tester |
| CN201804530U (en) * | 2010-09-10 | 2011-04-20 | 京东方科技集团股份有限公司 | Liquid crystal display panel detecting device |
| CN103366657B (en) * | 2013-07-17 | 2016-07-13 | 青岛海信电器股份有限公司 | Flicker regulates system |
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2016
- 2016-05-05 CN CN201610292040.7A patent/CN106019647B/en active Active
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Address after: 430070 Hubei Province, Wuhan city Hongshan District Road No. 48 bookstore (North Industrial Park) 1 building 11 layer Applicant after: Wuhan fine test electronics group Limited by Share Ltd Address before: 430070 Hongshan entrepreneurship center, No. 53, Nanhu Avenue, Hongshan District, Wuhan, Hubei Province, 4 Applicant before: Wuhan Jingce Electronic Technology Co., Ltd. |
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