CN204288756U - GOA liquid crystal panel electrical property testing device - Google Patents
GOA liquid crystal panel electrical property testing device Download PDFInfo
- Publication number
- CN204288756U CN204288756U CN201420759178.XU CN201420759178U CN204288756U CN 204288756 U CN204288756 U CN 204288756U CN 201420759178 U CN201420759178 U CN 201420759178U CN 204288756 U CN204288756 U CN 204288756U
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- China
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- liquid crystal
- module
- crystal panel
- testing device
- electrical property
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- Expired - Fee Related
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The utility model provides a kind of GOA liquid crystal panel electrical property testing device, is intended to realize detecting liquid crystal display picture quality.This utility model comprises kernel control module, signal output module, power module and visualization interface module composition.In the utility model, realized the wave form output of different frequency by single chip control unit, to drive liquid crystal, different pictures is shown.This device has the advantage that cost is low, volume is little, output waveform frequency is high, output waveform is many, output waveform phase accuracy is high.Fig. 1 is the functional block diagram of the utility model GOA liquid crystal panel electrical property testing device.
Description
Technical field
The utility model relates to a kind of GOA liquid crystal panel electrical property testing device.
Background technology
At present, in the manufacture process of liquid crystal panel, include the operation that liquid crystal panel is detected.Whether the detection of liquid crystal panel is mainly detected it by liquid crystal panel detection device, meet the requirements to test liquid crystal image display quality.The principle that this liquid crystal panel detects, by producing the signal waveform needed for a series of liquid crystal display, drives liquid crystal panel display frame, and judge liquid crystal panel whether existing defects by the quality detecting liquid crystal panel display frame.
In traditional liquid crystal panel detection device, there is the shortcoming that waveform frequency is not high enough, wave form output few, waveform phase precision is not high, and GOA liquid crystal panel electrical property testing device can overcome above shortcoming, the waveform frequency of output is higher, wave form output is more, waveform phase is higher.
Utility model content
The purpose of this utility model is to provide a kind of GOA liquid crystal panel electrical property testing device, can solve high, the bulky shortcoming of present liquid crystal panel detection device cost, reduces cost and the volume of liquid crystal panel detection device.
The utility model provides a kind of GOA liquid crystal panel electrical property testing device, comprises kernel control module, signal output module, power module and visualization interface module; Described kernel control module comprises single chip control unit, D/A conversion unit, operation amplifier driver element; Described signal output module is connected with described operation amplifier driver element; Described power module is connected with described single chip control unit, D/A conversion unit, operation amplifier driver element respectively; Described visualization interface module is connected with described single chip control unit; Described D/A conversion unit is connected with described single chip control unit, operation amplifier driver element.
GOA liquid crystal panel electrical property testing device as above, described power module comprises circuit power processing unit, and described circuit power processing unit connects described single chip control unit, D/A conversion unit, operation amplifier driver element and visualization interface module respectively.
GOA liquid crystal panel electrical property testing device as above, described circuit power processing unit is divided into adjustable source part and unadjustable power unit.
GOA liquid crystal panel electrical property testing device as above, described adjustable source part and unadjustable power unit are DC voltage converter.
GOA liquid crystal panel electrical property testing device as above, described power module also comprises the power interface for connecting operate outside power supply.
GOA liquid crystal panel electrical property testing device as above, also comprise backlight control module, described backlight control module is connected with circuit power processing unit.
GOA liquid crystal panel electrical property testing device as above, also comprise button and select module, described input through keyboard module is connected with described single chip control unit.
GOA liquid crystal panel electrical property testing device as above, also comprise serial communication module, described serial communication module is connected with described kernel control module.
GOA liquid crystal panel electrical property testing device as above, serial communication module is USB interface.
The utility model GOA liquid crystal panel electrical property testing device, take single chip control unit as core control portions, pass through programming mode, control single chip computer controls the signal waveform produced, solve high, the bulky shortcoming of cost in available liquid crystal panel detection equipment, reduce cost and the volume of GOA panel checkout equipment.
Accompanying drawing explanation
Fig. 1 is the functional module structure schematic diagram of GOA liquid crystal panel electrical property testing device.
Fig. 2 is the electronic objects units structural representation of GOA liquid crystal panel electrical property testing device.
Fig. 3 is the display interface schematic diagram in kind of GOA liquid crystal panel electrical property testing device.
Description of reference numerals:
1-power module; 2-adjustable source part; The unadjustable power unit of 3-; 4-input through keyboard module; 5-serial communication module; 6-single chip control unit; 7-visualization interface module; 8-D/A converting circuit; 9-amplifier amplifies driver element; 10-grid voltage exports (even number line); 11-grid voltage exports (odd-numbered line); 12-; 13-data line exports; 14-reference voltage exports; 15-switch; 16-signal exports; 17-keyboard input module; 18-visualization interface region; 19-power light; 20-power interface; 21-serial communication interface; 22-parameter display region; 23-other viewing area; 24-mode selective region; 25-device name viewing area; 26-company phrase.
Embodiment
In GOA liquid crystal panel electrical property testing device, with the key control unit of single-chip microcomputer as checkout equipment, the signal waveform produced can be controlled by programming, make signal generating circuit more simple, and greatly reduce equipment cost and volume.
Fig. 1 is the functional module structure schematic diagram of GOA liquid crystal panel electrical property testing device.
Kernel control module comprises single chip control unit 6, D/A converter module 8, operation amplifier driver element 9.Wherein, one end of D/A converter module 8 connects single chip control unit 6, and driver element 9 is amplified in other end concatenation operation.Power module 1 respectively with single chip control unit 6, D/A converter module 8, operation amplifier driver element 9.Visualization interface module 7 is connected with single chip control unit 6.
Power module 1 comprises adjustable source part 2 and unadjustable power unit 3.Power module 1 can be connected with external power source, for system works provides voltage.Adjustable source part 2 and unadjustable power unit 3 can adopt high-performance direct current converter and DC-DC chip to realize voltage multiple-channel output, and output voltage inputs single chip control unit 6, D/A converter module 8, operation amplifier driver element 9 respectively.Whether power module also comprises power light 19 in addition, can indication mechanism power on.In this GOA liquid crystal panel electrical property testing device, be also provided with backlight control module, this module by arranging, can export backlight driving voltage.
Single chip control unit 6 is the core control portions of signal generating circuit, can produce a series of signal by the timer conter of its inside.Single chip control unit 6 logarithmic mode modular converter 8 carries out setting able to programme, makes it export a series of waveform customization, then amplifies through operation amplifier driver element 9, show in order to drive liquid crystal panel.Namely single chip control unit 6 can adjust signal by Control peripheral circuit, and the voltage, frequency etc. of such as signal waveform can be programmed by single chip control unit 6 and be arranged, with the demand of the tested GOA panel of satisfied difference.Use single chip control unit 6 as core control portions, namely ensure that the stability of function and signal, also simplify circuit structure, greatly reduce the volume of cost and equipment.
D/A converter module 8 have employed AD series high-performance D/C conversion chip, realizes 4 road analog signal outputs.The simulating signal exported, after operation amplifier driver element 9 amplifies, achieves the generation of tested GOA panel desired signal.By regulating the parameter of D/A converter module 8, the output voltage that can realize different output channels is different, thus achieves the output of multi-series signal.Operation amplifier driver element 9 Zhong You tetra-tunnel exports, and comprises VR, VB, VG and Vcom respectively, and wherein VR is that red source drives channel signal, VB is that blue sources drives channel signal, VG is that green source drives channel signal, Vcom is common electric voltage drive singal.The above each drive singal voltage is all arranged by single chip control unit 6.
The utility model GOA liquid crystal panel electrical property testing device also comprises input through keyboard module 4.This input through keyboard module 4 is connected with single chip control unit 6, make system equipment can have the selection function of switch, next width picture, a upper width picture, circulation pattern, these buttons after powering, as selection function, can be selected system output function.
Visualization interface module 7 is connected with single chip control unit 6, can be exported by single chip control unit 6 pairs of various parameters of system, the parameter outputed signal can be shown by liquid crystal, in addition, this visualization interface module can also show service regeulations and points for attention etc.
The utility model GOA liquid crystal panel electrical property testing device also comprises serial communication module 5, and the interface of this module is USB interface, can carry out communication, can revise system signal waveform at any time, to adapt to different GOA panel by data line and computer.
Signal output module in the utility model GOA liquid crystal panel electrical property testing device comprises data line signal output 13, reference voltage exports 14, grid voltage exports (even number line) 10 and grid voltage exports (odd-numbered line) 11.Wherein, export 14 be connected with low and high level change-over circuit according to line signal output 13, reference voltage; Grid voltage exports (even number line) 10 and is connected with operation amplifier driver element 9 with grid voltage output (odd-numbered line) 11.
Fig. 2 is the electronic objects units structural representation of GOA liquid crystal panel electrical property testing device.Wherein, outlet 20 is used for and the connection of external power source, and whether pilot lamp 19 is used to refer to system and powers on.Switch 15 is used for the conducting of control system and external power source.Button is selected can pass through button in module 17, makes system carry out the work of different mode.Serial communication socket 22 is connected with computer, can carry out communication with system, makes system export user-defined waveform.Visualization interface module 18 i.e. LCDs, is used for showing various parameter.Output module 16 is exactly the output of signal, is used for driving the display of GOA panel.
Fig. 3 is the display interface schematic diagram in kind of GOA liquid crystal panel electrical property testing device.As can be seen from the figure, display interface can comprise parameter display region 22, other viewing area 23, mode selective region 24, device name viewing area 25, company phrase 26.Wherein, model selection can be carried out by mode selective region 24 when starting shooting, corresponding and keyboard input module 17.After pattern is selected, the information relevant to this module can be shown in parameter display region 22, such as, each road voltage, cycle and other shape informations etc.
Parameter display region 22 can show the parameters of current output signal waveform, such as, and the parameters such as each road voltage, cycle.
Device name viewing area 25 can display device title, in addition, company phrase 26 and other viewing area 23 in order to show various poster or other content of company, such as, Business Name, application notice etc.
The utility model GOA liquid crystal panel electrical property testing device, with single chip control unit as control core part, the signal waveform produced is controlled by programming mode, solve high, the bulky shortcoming of available liquid crystal panel detection equipment cost, reduce cost and the volume of GOA liquid crystal panel electrical property testing device, make to carry convenient, can adapt to carry with the occasion with production line practicality.
Claims (9)
1. a GOA liquid crystal panel electrical property testing device, is characterized in that, comprises kernel control module, signal output module, power module and visualization interface module;
Described kernel control module comprises single chip control unit, D/A conversion unit, operation amplifier driver element; Described signal output module and described operation amplifier driver element; Described power module is connected with described single chip control unit, D/A conversion unit, operation amplifier driver element respectively; Described visualization interface module is connected with described single chip control unit; Described D/A conversion unit is connected with described single chip control unit, operation amplifier driver element respectively.
2. GOA liquid crystal panel electrical property testing device according to claim 1, it is characterized in that, described power module comprises circuit power processing unit, and described circuit power processing unit connects described single chip control unit, D/A conversion unit, operation amplifier driver element respectively.
3. GOA liquid crystal panel electrical property testing device according to claim 2, is characterized in that, described circuit power processing unit is adjustable source part and unadjustable power unit.
4. GOA liquid crystal panel electrical property testing device according to claim 2, is characterized in that, described adjustable source part and unadjustable power unit are direct current converter.
5. GOA liquid crystal panel electrical property testing device according to claim 2, is characterized in that, described power module also comprises the power interface for connecting operate outside power supply.
6. GOA liquid crystal panel electrical property testing device according to claim 1, it is characterized in that, also comprise backlight control module, described backlight control module is connected with circuit power processing unit.
7. GOA liquid crystal panel electrical property testing device according to claim 1, is characterized in that, also comprise input through keyboard module, and described button selects module to be connected with described single chip control unit.
8. GOA liquid crystal panel electrical property testing device according to claim 1, it is characterized in that, also comprise serial communication module, described serial communication module is connected with described kernel control module.
9. GOA liquid crystal panel electrical property testing device according to claim 8, is characterized in that, serial communication module is USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420759178.XU CN204288756U (en) | 2014-12-05 | 2014-12-05 | GOA liquid crystal panel electrical property testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420759178.XU CN204288756U (en) | 2014-12-05 | 2014-12-05 | GOA liquid crystal panel electrical property testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204288756U true CN204288756U (en) | 2015-04-22 |
Family
ID=52871891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420759178.XU Expired - Fee Related CN204288756U (en) | 2014-12-05 | 2014-12-05 | GOA liquid crystal panel electrical property testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204288756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176200A (en) * | 2019-06-11 | 2019-08-27 | 苏州华兴源创科技股份有限公司 | A kind of production method and system of panel detection signal |
-
2014
- 2014-12-05 CN CN201420759178.XU patent/CN204288756U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176200A (en) * | 2019-06-11 | 2019-08-27 | 苏州华兴源创科技股份有限公司 | A kind of production method and system of panel detection signal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |