CN101958092A - Test conversion module and display screen test method - Google Patents
- ️Wed Jan 26 2011
CN101958092A - Test conversion module and display screen test method - Google Patents
Test conversion module and display screen test method Download PDFInfo
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- CN101958092A CN101958092A CN2009101601033A CN200910160103A CN101958092A CN 101958092 A CN101958092 A CN 101958092A CN 2009101601033 A CN2009101601033 A CN 2009101601033A CN 200910160103 A CN200910160103 A CN 200910160103A CN 101958092 A CN101958092 A CN 101958092A Authority
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Abstract
本发明涉及测试转换模块及显示屏测试方法，该测试转换模块包含程控切换电路、芯片驱动电路、驱动芯片和短路条测试电路。程控切换电路输入模拟信号和电平信号，芯片驱动电路电性连接该程控切换电路，并输入低压差分信号，驱动芯片电性连接该程控切换电路和该芯片驱动电路，并输出全测试信号，短路条测试电路电性连接该程控切换电路，输入该模拟信号，并输出短路条测试信号，其中，该程控切换电路的输出信号控制该驱动芯片和该短路条测试电路的输出。通过本发明，短路条测试和全测试模式可以切换，使得针对显示屏的多种测试可整合使用同一台测试机，既提高效率，又节约成本。
The invention relates to a test conversion module and a display screen test method. The test conversion module includes a program-controlled switching circuit, a chip drive circuit, a drive chip and a short-circuit bar test circuit. The program-controlled switching circuit inputs analog signals and level signals, the chip drive circuit is electrically connected to the program-controlled switching circuit, and inputs a low-voltage differential signal, the driver chip is electrically connected to the program-controlled switching circuit and the chip drive circuit, and outputs full test signals, short circuit The strip test circuit is electrically connected to the program-controlled switching circuit, inputs the analog signal, and outputs a short-circuit bar test signal, wherein the output signal of the program-controlled switch circuit controls the output of the driver chip and the short-circuit bar test circuit. Through the present invention, the short-circuit bar test and the full test mode can be switched, so that multiple tests for the display screen can be integrated and used with the same test machine, which not only improves efficiency, but also saves costs.
Description
Technical field
The present invention is about a kind of test conversion module and display screen method of testing, particularly relevant for a kind of test conversion module of changeable testing mode and use the display screen method of testing of this test conversion module.
Background technology
Panel display apparatus is at present in widespread use and the various electronic product.With the liquid crystal indicator is example, in the manufacture process of liquid crystal panel, need carry out multiple test, as liquid crystal cells test (celltesting), driving circuit test, burn-in test, functional test etc., various test links all will be used corresponding tester table.
At present, the output parameter of tester table fixedly installs, and adjusting parameter needs hardware modification or burning test procedure, very trouble again.And also (ComputerIntegrated Manufacturing, CIM) system's line do not make information such as test pattern and position coordinates directly to upload or to download from the CIM system to tester table with computer integrated manufacturing system.In addition, the test board that some test link (as the liquid crystal cells test) is used only is suitable for short-circuiting bar (shorting bar) test, at different model product needed burning formula again, and can not use same set of tester table with the test of liquid crystal module section, these have more increased the complexity and the testing cost of test job.
Summary of the invention
At above-mentioned technical matters, test conversion module provided by the invention comprises program control commutation circuit, chip drive circuit, chip for driving and short-circuiting bar test circuit.Program control commutation circuit input simulating signal and level signal.Chip drive circuit electrically connects this program control commutation circuit, and the input Low Voltage Differential Signal.Chip for driving electrically connects this program control commutation circuit and this chip drive circuit, and exports full test signal.The short-circuiting bar test circuit electrically connects this program control commutation circuit, imports this simulating signal, and output short-circuit bar test signal.Wherein, the output signal of this program control commutation circuit is controlled the output of this chip for driving and this short-circuiting bar test circuit.
According to test conversion module of the present invention, chip for driving is for covering brilliant film.
According to test conversion module of the present invention, this short-circuiting bar test signal comprises odd gates signal, even number signal, common electric voltage signal and rgb signal.
According to test conversion module of the present invention, also comprise power supply unit, provide each circuit required power supply.
Display screen method of testing provided by the invention comprises following steps.Display screen integration testing machine is provided, and this test machine comprises above-mentioned test conversion module, and by this test conversion module, this test machine can switch between short-circuiting bar test pattern and full test pattern.Carry out liquid crystal cells first test, this test machine switches to this short-circuiting bar test pattern.Carry out liquid crystal cells second test, this test machine switches to this full test pattern.
According to display screen method of testing of the present invention, when test machine switched to the short-circuiting bar test pattern, the test conversion module was exported monochromatic pattern.Further, this monochrome pattern comprises red, green, blue, black and white pattern.
According to display screen method of testing of the present invention, when test machine switched to full test pattern, the test conversion module was exported panchromatic pattern.
According to display screen method of testing of the present invention, also comprise network and be connected in data bank, test required program or pattern are uploaded or downloaded to test machine.Further, this test machine also comprises parameter setting interface, sets required program of this test or pattern by this parameter setting interface editor.
By the present invention, short-circuiting bar test and full test pattern can switch, so the multiple test of display screen can be integrated same test machine of use.The network connectivity function makes things convenient for material upload and download, and output parameter can be set from edlin, has increased defective and has blocked the inspection success ratio.
Description of drawings
Fig. 1 is the synoptic diagram of the test conversion module of one embodiment of the invention;
Fig. 2 is the principle schematic of display screen method of testing of the present invention;
Fig. 3 is the process flow diagram of the display screen method of testing of one embodiment of the invention.
Embodiment
For making purpose of the present invention, structure, feature and function thereof there are further understanding, cooperate embodiment to be described in detail as follows now.
See also Fig. 1, Fig. 1 is the synoptic diagram of the
test conversion module1 of one embodiment of the invention.
Test conversion module1 comprises program control commutation circuit 11, chip drive circuit 12, chip for driving 13 and short-circuiting bar test circuit 14.Program control commutation circuit 11 input simulating signal AS and level signal TTL.Chip drive circuit 12 electrically connects program control commutation circuit 11, and input Low Voltage Differential Signal LVDS.Chip for driving 13 electrically connects program control commutation circuit 11 and chip drive circuit 12, and exports full test signal FC.Short-circuiting bar test circuit 14 electrically connects program control commutation circuit 11, input simulating signal AS, and output short-circuit bar test signal SB.Wherein, the output signal controlling and driving chip 13 of program control commutation circuit 11 and the output of short-circuiting bar test circuit 14.
In one embodiment, chip for driving 13 for cover brilliant film (chip on film, COF).Short-circuiting bar test signal SB comprises odd gates signal GO, even number signal GE, common electric voltage signal Vcom and rgb signal.In actual applications,
test conversion module1 also comprises power supply unit 15, provides each circuit required power supply.
See also Fig. 2 and Fig. 3, Fig. 2 is the principle schematic of display screen method of testing of the present invention, and Fig. 3 is the process flow diagram of the display screen method of testing of one embodiment of the invention.Display screen method of testing provided by the invention comprises following steps.S31, display screen
integration testing machine2 is provided, this
test machine2 comprises above-mentioned
test conversion module1, by this
test conversion module1, this
test machine2 can switch between the first pattern M1 and the second pattern M2, this first pattern M1 is short-circuiting bar test (shorting bar) pattern, and this second pattern M2 is full test (full contact) pattern.S33 carries out liquid crystal cells (cell) first test, and this
test machine2 switches to this short-circuiting bar test pattern.S35 carries out liquid crystal cells (cell) second test, and this
test machine2 switches to this full test pattern.
In one embodiment, when
test machine2 switched to the short-circuiting bar test pattern, the test conversion module was exported monochromatic pattern.Further, this monochrome pattern comprises red (R), green (G), blue (B), black (black) and white (white) Color Pattern (pattern).When
test machine2 switched to full test pattern, the test conversion module was exported panchromatic pattern (full pattern).
In actual applications, also comprise network and be connected in
data bank3, test required program or pattern are uploaded or downloaded to test machine 2.Further, this
test machine2 also comprises
parameter setting interface21, and 21 editors set this test required program or pattern by this parameter setting interface.
By the present invention, short-circuiting bar test and full test pattern can switch, so the multiple test of display screen can be integrated same test machine of use.The network connectivity function makes things convenient for material upload and download, and output parameter can be set from edlin, has increased defective and has blocked the inspection success ratio.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.On the contrary, change of being done and retouching without departing from the spirit and scope of the present invention all belongs to scope of patent protection of the present invention.
Claims (10)
1.一种测试转换模块，其特征在于包含：1. A test conversion module, characterized in that it comprises: 程控切换电路，输入模拟信号和电平信号；Program-controlled switching circuit, input analog signal and level signal; 芯片驱动电路，电性连接该程控切换电路，并输入低压差分信号；The chip drive circuit is electrically connected to the program-controlled switching circuit and inputs a low-voltage differential signal; 驱动芯片，电性连接该程控切换电路和该芯片驱动电路，并输出全测试信号；The driver chip is electrically connected to the program-controlled switching circuit and the chip driver circuit, and outputs full test signals; 短路条测试电路，电性连接该程控切换电路，输入该模拟信号，并输出短路条测试信号；A shorting bar test circuit, electrically connected to the program-controlled switching circuit, inputting the analog signal, and outputting a shorting bar test signal; 其中，该程控切换电路的输出信号控制该驱动芯片和该短路条测试电路的输出。Wherein, the output signal of the program-controlled switching circuit controls the output of the driving chip and the shorting bar testing circuit. 2.如权利要求1所述的测试转换模块，其特征在于：该驱动芯片为覆晶薄膜。2. The test conversion module according to claim 1, wherein the driving chip is a chip-on-chip. 3.如权利要求1所述的测试转换模块，其特征在于：该短路条测试信号包含奇数栅极信号、偶数栅极信号、共通电压信号和RGB信号。3. The test conversion module as claimed in claim 1, wherein the short bar test signal comprises an odd gate signal, an even gate signal, a common voltage signal and RGB signals. 4.如权利要求1所述的测试转换模块，其特征在于还包含：电源供应器，提供各电路所需电源。4. The test conversion module according to claim 1, further comprising: a power supply, which provides power required by each circuit. 5.一种显示屏测试方法，其特征在于包含：5. A display method for testing, characterized in that it comprises: 提供显示屏整合测试机，该测试机包含如权利要求1-4中任一项所述的测试转换模块，通过该测试转换模块，该测试机可在短路条测试模式和全测试模式之间切换；Display screen integrated testing machine is provided, the testing machine comprises the test conversion module as described in any one of claims 1-4, by the test conversion module, the testing machine can be switched between the short bar test mode and the full test mode ; 进行液晶单元第一测试，该测试机切换到该短路条测试模式；Carrying out the first test of the liquid crystal unit, the tester switches to the short-circuit bar test mode; 进行液晶单元第二测试，该测试机切换到该全测试模式。To carry out the second test of the liquid crystal unit, the tester switches to the full test mode. 6.如权利要求5所述的显示屏测试方法，其特征在于：当该测试机切换到该短路条测试模式时，该测试转换模块输出单色图样。6 . The display screen testing method according to claim 5 , wherein when the testing machine switches to the short-circuit bar testing mode, the test conversion module outputs a monochrome pattern. 7 . 7.如权利要求6所述的显示屏测试方法，其特征在于：该单色图样包含红、绿、蓝、黑或白色图样。7. The display screen testing method as claimed in claim 6, wherein the monochrome pattern comprises red, green, blue, black or white patterns. 8.如权利要求5所述的显示屏测试方法，其特征在于：当该测试机切换到该全测试模式时，该测试转换模块输出全色图样。8. The display screen testing method according to claim 5, wherein when the testing machine is switched to the full-test mode, the test conversion module outputs a full-color pattern. 9.如权利要求5所述的显示屏测试方法，其特征在于还包含：网络连接于资料库，该测试机上传或者下载测试所需的程序或图样。9. The display screen testing method according to claim 5, further comprising: connecting to a database through a network, and the testing machine uploads or downloads programs or patterns required for testing. 10.如权利要求9所述的显示屏测试方法，其特征在于：该测试机还包含参数设定界面，通过该参数设定界面编辑设定该测试所需的程序或图样。10. The display screen testing method according to claim 9, wherein the testing machine further comprises a parameter setting interface, through which the program or pattern required for the test can be edited and set.
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| CN2009101601033A CN101958092A (en) | 2009-07-17 | 2009-07-17 | Test conversion module and display screen test method |
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Cited By (6)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509532A (en) * | 2011-09-20 | 2012-06-20 | 友达光电股份有限公司 | Detection circuit, driving chip, display module and detection method of transmission interface |
| CN102646382A (en) * | 2012-04-27 | 2012-08-22 | 深圳市华星光电技术有限公司 | Method and device for detecting anomaly of liquid crystal display module differential signal receiving terminal |
| CN104034995A (en) * | 2014-05-15 | 2014-09-10 | 武汉精测电子技术股份有限公司 | LVDS signal open-circuit and short-circuit detection device and open-circuit and short-circuit detection method |
| CN104181373A (en) * | 2014-07-23 | 2014-12-03 | 武汉精测电子技术股份有限公司 | ShortingBar voltage output automation acquisition method and device of OLED |
| US8907695B2 (en) | 2012-04-27 | 2014-12-09 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Detecting method and detecting device of abnormality of differential signal receiving terminal of liquid crystal displaying module |
| CN108039140A (en) * | 2017-11-21 | 2018-05-15 | 友达光电股份有限公司 | Display panel test system and display panel test method |
-
2009
- 2009-07-17 CN CN2009101601033A patent/CN101958092A/en active Pending
Cited By (9)
* Cited by examiner, † Cited by third party| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509532A (en) * | 2011-09-20 | 2012-06-20 | 友达光电股份有限公司 | Detection circuit, driving chip, display module and detection method of transmission interface |
| CN102509532B (en) * | 2011-09-20 | 2014-04-16 | 友达光电股份有限公司 | Detection circuit, driving chip, display module and detection method of transmission interface |
| CN102646382A (en) * | 2012-04-27 | 2012-08-22 | 深圳市华星光电技术有限公司 | Method and device for detecting anomaly of liquid crystal display module differential signal receiving terminal |
| WO2013159421A1 (en) * | 2012-04-27 | 2013-10-31 | 深圳市华星光电技术有限公司 | Method and device for detecting anomaly in differential signal receiving terminal of liquid crystal display module |
| US8907695B2 (en) | 2012-04-27 | 2014-12-09 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Detecting method and detecting device of abnormality of differential signal receiving terminal of liquid crystal displaying module |
| CN104034995A (en) * | 2014-05-15 | 2014-09-10 | 武汉精测电子技术股份有限公司 | LVDS signal open-circuit and short-circuit detection device and open-circuit and short-circuit detection method |
| CN104034995B (en) * | 2014-05-15 | 2016-09-21 | 武汉精测电子技术股份有限公司 | LVDS signal is opened short-circuit detecting device and opens method for detecting short circuit |
| CN104181373A (en) * | 2014-07-23 | 2014-12-03 | 武汉精测电子技术股份有限公司 | ShortingBar voltage output automation acquisition method and device of OLED |
| CN108039140A (en) * | 2017-11-21 | 2018-05-15 | 友达光电股份有限公司 | Display panel test system and display panel test method |
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