CN104297954A - Power-up aging test device for liquid crystal display module - Google Patents
Power-up aging test device for liquid crystal display module Download PDFInfo
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- CN104297954A CN104297954A CN201410482752.6A CN201410482752A CN104297954A CN 104297954 A CN104297954 A CN 104297954A CN 201410482752 A CN201410482752 A CN 201410482752A CN 104297954 A CN104297954 A CN 104297954A
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- test
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- data receiver
- ageing
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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
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- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention discloses a power-up aging test device for a liquid crystal display module. The power-up aging test device comprises a test board arranged outside an aging test chamber, and a data receiving board arranged in the aging test chamber. The test board and the data receiving board are connected through a serial port extension cord. The test board comprises a test data transmitting module and a first level switch module. The data receiving board comprises a second level switch module, a series-to-parallel module and a plurality of test interfaces used for being connected with the liquid crystal display module. According to the power-up aging test device for the liquid crystal display module, as the test board is arranged outside the aging test chamber, continuous operation of the test board is ensured, and the purpose of the power-up aging test is achieved; meanwhile, as the test board and the data receiving board are connected through the serial port extension cord, the distance between the test board and the data receiving board can be up to more than 15 meters, and the convenience of the aging test is greatly improved.
Description
Technical field
The present invention relates to LCM test device field, refer to that a kind of LCD MODULE powers up ageing test apparatus especially.
Background technology
At present, it is by test board that LCD MODULE powers up ageing test apparatus, test fixture, and LCD MODULE is put in ageing oven together, this just causes test unit also to carry out adding electrical ageing test with LCD MODULE together, obviously, this method is quite high to the requirement of test unit, be unfavorable for reducing costs, improve testing efficiency, simultaneously, this method of testing often there will be program and does not run, crystal oscillator not starting of oscillation, LCD MODULE is without problems such as displays, do not reach and add the successional object of electrical ageing test, in addition, length of cable when profit carries out adding voltage ageing in this way between test board and test fixture is maximum is no more than 30 centimetres, once exceed this length, easily cause the abnormal problem of display, this just brings inconvenience to aging test.
Summary of the invention
In view of this, the object of the invention is to propose that a kind of testing efficiency is high, test result accurately, the LCD MODULE of long service life powers up ageing test apparatus.
Ageing test apparatus is powered up based on above-mentioned purpose a kind of LCD MODULE provided by the invention, comprise the test board being arranged on ageing oven outside and the data receiver plate being arranged on ageing oven inside, described test board is connected by serial ports extended line with data receiver plate; Described test board comprises test data sending module and the first level switch module, and described data receiver plate comprises second electrical level modular converter, serioparallel exchange module and multiple test interface for being connected with tested LCD MODULE.
Preferably, described LCD MODULE powers up ageing test apparatus and comprises two described data receiver plates; Described test board comprises two the first level switch modules, and each described first level switch module is connected with a described data receiver plate by a serial ports extended line.
Preferably, described serial ports extended line is RS232 Serial Port Line.
Preferably, described first level switch module and second electrical level modular converter include malleation booster circuit and negative pressure booster circuit, for being changed between Transistor-Transistor Logic level and RS232 level by the signal of transmission.
Preferably, described test board also comprises monitoring, alarming module, for monitoring the connection status of described data receiver plate, and when there is connectivity problem, is reported to the police by the hummer that is connected with described monitoring, alarming module and/or pilot lamp.
As can be seen from above, LCD MODULE provided by the invention powers up ageing test apparatus, be provided separately providing the test board of test signal with the data receiver plate being connected tested LCD MODULE, test board is placed in normal temperature environment, data receiver plate and tested LCD MODULE is only had to be placed in aging test environment, ensure that the uninterrupted operation of test board, reach the object adding electrical ageing test, simultaneously, connected by serial ports extended line between test board and data receiver plate, therebetween distance can reach more than 15 meters, substantially increase the convenience of aging test, in addition, when the test board connection monitored therebetween goes wrong (as loose contact), then carry out sounding by corresponding module, luminous alarm, prompting testing crew checks, ensure that LCD MODULE adds the Stability and veracity of electrical ageing test further.
Accompanying drawing explanation
Fig. 1 is the theory diagram that the LCD MODULE of the embodiment of the present invention powers up ageing test apparatus.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
With reference to figure 1, the LCD MODULE for the embodiment of the present invention powers up the theory diagram of ageing test apparatus.
The LCD MODULE that the embodiment of the present invention provides powers up ageing test apparatus, it is characterized in that, comprise the test board 1 being arranged on ageing oven outside and the data receiver plate 2 being arranged on ageing oven inside, described test board is connected by serial ports extended line 3 with data receiver plate; Described test board 1 comprises test data sending module 101 and the first level switch module 102, and described data receiver plate 2 comprises second electrical level modular converter 201, serioparallel exchange module 202 and multiple test interface 203 for being connected with tested LCD MODULE.
For the deficiency of existing test method, test unit is split as two parts by the embodiment of the present invention: test board 1 and data receiver plate 2.Test board 1 is for generation of the test signal driving tested LCD MODULE, and it is placed in the outside of ageing oven.Data receiver plate 2 is for receiving the test signal of test board 1 and being connected with tested LCD MODULE, and itself and tested LCD MODULE are all placed in the inside of ageing oven.Be connected by serial ports extended line 3 between test board 1 and data receiver plate 2.Visible, LCD MODULE is added the test resource part of electrical ageing test by the present embodiment, namely test board 1 is arranged on ageing oven outside, the data receiver plate 2 for receiving test signal and tested LCD MODULE is only had in ageing oven, pass through such scheme, effectively avoid in existing process of the test, because part of detecting is also placed in ageing oven, carry out aging test together and the problem such as the service life of equipment that causes shortens, test process is unstable.
As preferably, the serial ports extended line for connecting test plate 1 and data receiver plate 2 is RS232 Serial Port Line.The present embodiment mainly make use of RS232 Serial Port Line logic level and is ± characteristic of 12V, and improve signal to noise ratio (S/N ratio), be suitable for long range propagation.Concrete, for data (information code): the level of logical one (mark) is lower than-3V, and the level of logical zero (spacing) is higher than+3V; For control signal; On-state (ON) the i.e. effective level of signal is higher than+3V, off-state (OFF) the i.e. level of invalidating signal is lower than-3V, namely when the absolute value of transmission level is greater than 3V, circuit can check out effectively, and the voltage between-3 ~+3V is meaningless, also thinks meaningless lower than-15V or higher than the voltage of+15V, therefore, during real work, should ensure that level is between-3V ~-15V or+3V ~+15V, general employing ± 12V.
In the present embodiment, test board 1 comprises test data sending module 101 and the first level switch module 102.Test data sending module 101 generates the test signal driving tested LCD MODULE, i.e. test resource part, this part is prior art, no longer describes in detail in the embodiment of the present invention.First level switch module 102 is for being converted to the RS232 level being applicable to the transmission of RS232 Serial Port Line by the Transistor-Transistor Logic level generated in test data sending module 101.RS-232 carrys out presentation logic state with generating positive and negative voltage, different with the regulation of low and high level presentation logic state from TTL.Therefore, in order to connect with the TTL device of computer interface or terminal, the conversion by carrying out level and logical relation between RS-232 Serial Port Line and TTL circuit (test data sending module 101) is needed; Through above-mentioned conversion, also improve the antijamming capability of Signal transmissions accordingly, meanwhile, more than 15 meters can be transmitted when guaranteed rate requires.Concrete, the first level switch module 102 comprises malleation booster circuit and negative pressure booster circuit.Test data sending module 101 can export 0V to+5V level; When output level is 0V, be transformed to+12V level by described malleation booster circuit; When output level is+5V, be transformed to-12V level by described negative pressure booster circuit.
In the present embodiment, data receiver plate 2 comprises second electrical level modular converter 201, serioparallel exchange module 202 and test interface 203.Wherein, described second electrical level modular converter 201 is identical with the first level switch module 102 structure, and its effect is Transistor-Transistor Logic level by the RS232 level conversion received.Test interface 203 is for being connected with tested LCD MODULE, and in order to improve testing efficiency, test interface 203 is generally all provided with multiple, to carry out aging test to multiple LCD MODULE simultaneously.Due to, what transmit in former components is serial data (instruction), and data receiver plate 2 is connected to multiple tested LCD MODULE by multiple test interface 203, then further by described serioparallel exchange module 202, serial data (instruction) is combined into parallel data, play the effect of restoring data, serialized data (instruction) is reconfigured one by one to test interface, drives and light the brilliant display module of test solution.
As an embodiment, described test board also comprises a monitoring, alarming module, if there is the situation of bad connection between test board and data receiver plate, then hummer will send chimes of doom or by pilot lamp flash for prompting.Concrete connected mode is that a port on test board connects pull-up resistor, if do not connect data receiver plate, is then high level; Interface position corresponding on data receiver plate is received on the ground, once the two connects together through serial ports extended line, port then on test board pulled down to (for low level) on the ground, be considered to be connected well between test board with data receiver plate, otherwise just think bad connection, and report to the police.
In the embodiment of the present invention, with reference to figure 1, test board 1 includes the first level switch module 102 described in two, correspondingly, each first level switch module 102 all connects the data receiver plate 2 described in, just can carry out aging test to many LCD MODULE like this by the test data sending module 101 described in simultaneously.So that each described data receiver plate 2 to be provided with 30 test interfaces 203, so the test unit of the present embodiment just can add electrical ageing test to 60 LCD MODULE simultaneously.Further, multiple test board 1 can also be connected use, can further increase the quantity of simultaneously carrying out the LCD MODULE adding electrical ageing test.In actual applications, concrete test board 1, first level switch module 102 and test interface 203 choose quantity, determine according to the needs of user.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. LCD MODULE powers up an ageing test apparatus, it is characterized in that, comprise the test board being arranged on ageing oven outside and the data receiver plate being arranged on ageing oven inside, described test board is connected by serial ports extended line with data receiver plate; Described test board comprises test data sending module and the first level switch module, and described data receiver plate comprises second electrical level modular converter, serioparallel exchange module and multiple test interface for being connected with tested LCD MODULE.
2. LCD MODULE according to claim 1 powers up ageing test apparatus, it is characterized in that, comprises two described data receiver plates; Described test board comprises two the first level switch modules, and each described first level switch module is connected with a described data receiver plate by a serial ports extended line.
3. LCD MODULE according to claim 1 powers up ageing test apparatus, it is characterized in that, described serial ports extended line is RS232 Serial Port Line.
4. LCD MODULE according to claim 3 powers up ageing test apparatus, it is characterized in that, described first level switch module and second electrical level modular converter include malleation booster circuit and negative pressure booster circuit, for being changed between Transistor-Transistor Logic level and RS232 level by the signal of transmission.
5. LCD MODULE according to claim 1 powers up ageing test apparatus, it is characterized in that, described test board also comprises monitoring, alarming module, for monitoring the connection status of described data receiver plate, and when there is connectivity problem, reported to the police by the hummer that is connected with described monitoring, alarming module and/or pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410482752.6A CN104297954A (en) | 2014-09-16 | 2014-09-16 | Power-up aging test device for liquid crystal display module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410482752.6A CN104297954A (en) | 2014-09-16 | 2014-09-16 | Power-up aging test device for liquid crystal display module |
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| CN104297954A true CN104297954A (en) | 2015-01-21 |
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| CN201410482752.6A Pending CN104297954A (en) | 2014-09-16 | 2014-09-16 | Power-up aging test device for liquid crystal display module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652483A (en) * | 2016-03-16 | 2016-06-08 | 武汉精测电子技术股份有限公司 | Liquid crystal display optical parameter measurement method and device based on fiber transmission |
| CN105759140A (en) * | 2016-02-17 | 2016-07-13 | 柳州市乾阳机电设备有限公司 | Apparatus for monitoring aging of light transmit-receive integrated module |
| CN109298257A (en) * | 2018-09-06 | 2019-02-01 | 国营芜湖机械厂 | A kind of image display automatic testing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040020102A (en) * | 2002-08-29 | 2004-03-09 | (주)동아엘텍 | An aging test apparatus for a LCD module |
| WO2007014493A1 (en) * | 2005-08-04 | 2007-02-08 | Fujen Hsiao | Aging room used for the last assembling process of lcd panel modules |
| US20070229109A1 (en) * | 2005-03-29 | 2007-10-04 | Nec Lcd Technologies, Ltd. | Carriage for liquid crystal module |
| CN101114065A (en) * | 2007-07-17 | 2008-01-30 | 夏可瑜 | Wireless testing system used for LCD and LCD module |
| CN103675541A (en) * | 2013-12-05 | 2014-03-26 | 成都天志大行信息科技有限公司 | Auxiliary device for RFID reader-writer aging tests |
| CN204116749U (en) * | 2014-09-16 | 2015-01-21 | 冀雅(廊坊)电子有限公司 | A kind of LCD MODULE powers up ageing test apparatus |
-
2014
- 2014-09-16 CN CN201410482752.6A patent/CN104297954A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040020102A (en) * | 2002-08-29 | 2004-03-09 | (주)동아엘텍 | An aging test apparatus for a LCD module |
| US20070229109A1 (en) * | 2005-03-29 | 2007-10-04 | Nec Lcd Technologies, Ltd. | Carriage for liquid crystal module |
| WO2007014493A1 (en) * | 2005-08-04 | 2007-02-08 | Fujen Hsiao | Aging room used for the last assembling process of lcd panel modules |
| CN101114065A (en) * | 2007-07-17 | 2008-01-30 | 夏可瑜 | Wireless testing system used for LCD and LCD module |
| CN103675541A (en) * | 2013-12-05 | 2014-03-26 | 成都天志大行信息科技有限公司 | Auxiliary device for RFID reader-writer aging tests |
| CN204116749U (en) * | 2014-09-16 | 2015-01-21 | 冀雅(廊坊)电子有限公司 | A kind of LCD MODULE powers up ageing test apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105759140A (en) * | 2016-02-17 | 2016-07-13 | 柳州市乾阳机电设备有限公司 | Apparatus for monitoring aging of light transmit-receive integrated module |
| CN105652483A (en) * | 2016-03-16 | 2016-06-08 | 武汉精测电子技术股份有限公司 | Liquid crystal display optical parameter measurement method and device based on fiber transmission |
| CN105652483B (en) * | 2016-03-16 | 2019-07-16 | 武汉精测电子集团股份有限公司 | A kind of liquid crystal display optical parameter measurement method and device based on fiber optic conduction |
| CN109298257A (en) * | 2018-09-06 | 2019-02-01 | 国营芜湖机械厂 | A kind of image display automatic testing equipment |
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Application publication date: 20150121 |