CN202084273U - Liquid crystal module testing connector and signal transfer circuit board - Google Patents
Liquid crystal module testing connector and signal transfer circuit board Download PDFInfo
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- CN202084273U CN202084273U CN 201120089680 CN201120089680U CN202084273U CN 202084273 U CN202084273 U CN 202084273U CN 201120089680 CN201120089680 CN 201120089680 CN 201120089680 U CN201120089680 U CN 201120089680U CN 202084273 U CN202084273 U CN 202084273U
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- crystal module
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Abstract
The utility model provides a liquid crystal module testing connector and a signal transfer circuit board. The liquid crystal module testing connector comprises the signal transfer circuit board and a signal transmitter; the signal transfer circuit board is provided with a first connecting interface, a second connecting interface and a third connecting interface; the first connecting interface can be connected with the input interface of a first model of liquid crystal module, and is provided with a plurality of first pins; the second connecting interface can be connected with the input interface of a second model of liquid crystal module, and is provided with a plurality of second pins; the third connecting interface can be connected with the input interface of a third model of liquid crystal module, and is provided with a plurality of third pins; any first pin and any second pin are connected to a third pin, the pins among the pins of the first connecting interface and the second connecting interface, which belong to different connecting interfaces but are defined alike, are connected to the same third pin, and the pins among the first pins and the second pins, which are defined differently, are connected with different third pins. The utility model increases the utilization rate of the liquid crystal module testing connector.
Description
Technical field
The utility model relates to the display device field tests, particularly a kind of liquid crystal module test connecting apparatus and signal converting circuit board.
Background technology
LCD is that a kind of liquid crystal that adopts is the display of material.Liquid crystal be between solid-state and liquid between organic compound.Under electric field action, the variation that liquid crystal molecule can be arranged, thus its light variation is passed through in influence, and the variation of this light can show as the variation of light and shade by the effect of polaroid.Like this, people change by the light and shade of the control of electric field finally having been controlled light, thereby reach the purpose of display image.
The LCD power consumption is very low, therefore gains great popularity, and is applicable to the electronic equipment that uses battery.
LCM (LCD Module) is that LCD shows module, liquid crystal module, is meant the assembly that peripheral circuits such as liquid crystal display device, web member, control and driving, PCB circuit board, backlight, structural member etc. are assembled together.
Whether LCM needs to test it and can correctly show through strict test before encapsulation.
In the prior art, test LCM can utilize a liquid crystal module test connecting apparatus, this liquid crystal module test connecting apparatus is provided with a connecting interface respectively at the two ends of a connection cable, connect the output interface of signal generator and the input interface of LCM, whether the signal that signal generator produces is input to the input interface of LCM by the liquid crystal module test connecting apparatus, can respond correctly the signal that signal generator produces to determine LCM.
Utility model designer finds that there is the shortcoming that application efficiency is low and cost is high at least in the connector of prior art, is described as follows in the process that realizes the utility model embodiment.
Generally speaking, LCM is divided into many models, though it is identical with the PIN quantity of 32 cun LCM input interface as 18.5 cun LCM, but the definition of some of PIN pin is also inequality, even the PIN quantity of the input interface of the LCM of some different model is all inequality, at this moment, the liquid crystal module test connecting apparatus can't be used for the test of the LCM of different model, and utilization factor is lower.
The utility model content
The purpose of the utility model embodiment is to provide a kind of liquid crystal module test connecting apparatus and signal converting circuit board, improves the utilization factor of liquid crystal module test connecting apparatus.
To achieve these goals, the utility model embodiment provides a kind of liquid crystal module test connecting apparatus, comprising:
The signal converting circuit board; With
The test signal that signal generator produces can be transferred to the signal transmitting apparatus of described signal converting circuit board;
Described signal converting circuit board is provided with:
Be used for first connecting interface that is connected with the liquid crystal module input interface of first model, have a plurality of first pins;
Be used for second connecting interface that is connected with the liquid crystal module input interface of second model, have a plurality of second pins;
Be used for receiving the 3rd connecting interface of described test signal, have a plurality of three-prongs from described signal transmitting apparatus;
Any one described first pin and second pin all are connected to a three-prong, in the pin of first connecting interface and second connecting interface, belong to different connecting interfaces, but define identical pin and be connected to same three-prong, the different pin of definition is connected with different three-prong in first pin and second pin.
Above-mentioned liquid crystal module test connecting apparatus, wherein, but described the 3rd connecting interface is connected with pluggable mode with described signal transmitting apparatus.
Above-mentioned liquid crystal module test connecting apparatus, wherein, described signal converting circuit board comprises a substrate, described first connecting interface and second connecting interface are arranged at the relative both sides of described substrate respectively.
To achieve these goals, the utility model embodiment also provides a kind of signal converting circuit board, comprising:
Be used for first connecting interface that is connected with the liquid crystal module input interface of first model, first pin with first quantity;
Be used for second connecting interface that is connected with the liquid crystal module input interface of second model, second pin with second quantity;
Be used for from the 3rd connecting interface of the test signal of signal transmitting apparatus received signal generator generation, three-prong with the 3rd quantity;
Any one described first pin and second pin all are connected to a three-prong, in the pin of first connecting interface and second connecting interface, belong to different connecting interfaces, but define identical pin and be connected to same three-prong, the different pin of definition is connected with different three-prong in described first pin and second pin.
Above-mentioned signal converting circuit board, wherein, but described the 3rd connecting interface can be connected with pluggable mode with described signal transmitting apparatus.
Above-mentioned signal converting circuit board, wherein, described signal converting circuit board comprises a substrate, described first connecting interface and second connecting interface are arranged at the relative both sides of described substrate respectively.
The technical scheme that the utility model embodiment provides,
Among the embodiment of the present utility model, this signal converting circuit board is provided with connecting interface corresponding with the LCM of different model more than 2 or 2, therefore this a set of equipment can be used for the test of the LCM of different model, owing to not be used in and change the liquid crystal module test connecting apparatus when changing the LCM type, improve the utilization factor of liquid crystal module test connecting apparatus, also improved testing efficiency.
In liquid crystal module test connecting apparatus of the present utility model, but described the 3rd connecting interface is connected with pluggable mode with described signal transmitting apparatus.Then when first connecting interface or second connecting interface go wrong, signal transmitting apparatus can also be used for other signal converting circuit board and realize the transmission of test signal, and signal transmitting apparatus is when going wrong, the also signal transmitting apparatus that can more renew, and the signal converting circuit board can not be scrapped, so always some can access effective utilization, and need not all scrap, fully improve the utilization factor of liquid crystal module test connecting apparatus, reduced testing cost.
Simultaneously, in the liquid crystal module test connecting apparatus of the present utility model, the part that is connected with LCM utilizes circuit board to realize, and is with respect to the connector mode that existing cable connects, more durable.
Description of drawings
Fig. 1 is the structural representation of liquid crystal module test connecting apparatus among the utility model embodiment.
Embodiment
For technical matters, technical scheme and advantage that the utility model embodiment will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The liquid crystal module test connecting apparatus of the utility model examples of implementation comprises as shown in Figure 1:
The signal converting circuit board; With
Be used for the test signal that signal generator produces is transferred to the signal transmitting apparatus of described signal converting circuit board;
Described signal converting circuit board is provided with:
Be used for first connecting interface that is connected with the liquid crystal module input interface of first model, have a plurality of first pin A1, A2, A3......An;
Be used for second connecting interface that is connected with the liquid crystal module input interface of second model, have a plurality of second pin B1, B2, B3......Bm;
Be used for receiving the 3rd connecting interface of described test signal, have a plurality of three-prong X1, X2, X3......Xl from described signal transmitting apparatus;
Any one described first pin and second pin all are connected to a three-prong, in the pin of first connecting interface and second connecting interface, belong to different connecting interfaces, but define identical pin and be connected to same three-prong, the different pin of definition is connected with different three-prong in described first pin and second pin.
Certainly, above-mentioned signal converting circuit board also has a substrate, first, second and third above-mentioned connecting interface all is arranged on the above-mentioned substrate, far away as much as possible for the position that makes the win connecting interface and second connecting interface, then first connecting interface and second connecting interface can be arranged at the relative both sides of substrate respectively.
In specific embodiment of the utility model, in the pin of first connecting interface and second connecting interface, belong to different connecting interfaces, to be connected to same three-prong can be two kinds of connected modes but define identical pin, as:
2 GND pin A1 and A2 are arranged in first pin, and 3 GND pin B1, B2 and B3 are arranged in second pin, these 5 GND pins can be connected to the pin X1 in the 3rd connecting interface, and this pin X is connected with the GND signal output pin of signal generator;
And for example, suppose 2 GND pin A1 and A2 are arranged in first pin, and 3 GND pin B1, B2 and B3 are arranged in second pin, wherein pin A1 can be connected with the pin X1 in the 3rd connecting interface with pin B1, pin A2 can be connected with the pin X2 in the 3rd connecting interface with pin B2, pin A3 can be connected with the pin X3 in the 3rd connecting interface, and as long as pin X1, X2 all are connected with the GND signal output pin of signal generator with X3.
Among the utility model embodiment, this signal converting circuit board is provided with connecting interface corresponding with the LCM of different model more than 2 or 2, therefore this a set of equipment can be used for the test of the LCM of different model, owing to not be used in and change the liquid crystal module test connecting apparatus when changing the LCM type, improve the utilization factor of liquid crystal module test connecting apparatus, also improved testing efficiency.
Consider that all LCM modules of dispatching from the factory all need test, and existing liquid crystal module test connecting apparatus need be connected with LCM with pluggable mode, this just causes the liquid crystal module test connecting apparatus to be very easy to damage, consumption is very big, and if in case transmission line is fixedlyed connected with interface, then any part is wherein damaged, and all will cause whole liquid crystal module test connecting apparatus to be scrapped, and has improved testing cost.
In order to address the above problem, in liquid crystal module test connecting apparatus of the present utility model, but described the 3rd connecting interface is connected with pluggable mode with described signal transmitting apparatus.Then when first connecting interface or second connecting interface go wrong, signal transmitting apparatus can also be used for other signal converting circuit board and realize the transmission of test signal, and signal transmitting apparatus is when going wrong, the also signal transmitting apparatus that can more renew, and the signal converting circuit board can not be scrapped, so always some can access effective utilization, and need not all scrap, fully improve the utilization factor of liquid crystal module test connecting apparatus, reduced testing cost.
Simultaneously, in the liquid crystal module test connecting apparatus of the present utility model, the part that is connected with LCM utilizes circuit board to realize, and is with respect to the connector mode that existing cable connects, more durable.
Test with the LCM of the LCM of 18.5 cun of certain brands and 32 cun is the use that example illustrates the liquid crystal module test connecting apparatus of the utility model embodiment below.
Following table is the interface pin definition contrast table of the LCM of 18.5 cun LCM and 32 cun:
Can find that from above two tables there are the identical PIN of a large amount of definition in 18.5 cun LCM with 32 cun LCM, as:
18.5 12,13,15,16,18,19,24, No. 25 pins of 5,6,8,9,11,12,17, No. 18 pins of very little LCM and 32 cun LCM all are LVDS differential data input pins;
18.5 21, No. 21 pins of 14, No. 15 pins of very little LCM and 32 cun LCM all are LVDS clock input pins;
18.5 5,6,7,8,11,14,17,20,23,26,29 and No. 30 pins of 4,7,10,13,16,19,23,24, No. 25 pins of very little LCM and 32 cun LCM all are ground pin.
Be that example illustrates being connected of first connecting interface and second connecting interface and the 3rd connecting interface with LVDS clock pin and LVDS differential data input pin below.
Suppose that first connecting interface is to be connected with 18.5 cun LCM, and second connecting interface is to be connected with 32 cun LCM, in this moment first connecting interface
And simultaneously, the 1-10 pin of the 3rd connecting interface is connected with the 1-10 pin of signal generator respectively one by one by signal transmitting apparatus, and the 1-10 pin of signal generator is respectively:
Negative LVDS differential data input pin
Positive LVDS differential data input pin
Negative LVDS differential data input pin
Positive LVDS differential data input pin
Negative LVDS clock signal input pin
Positive LVDS clock signal input pin
Negative LVDS differential data input pin
Positive LVDS differential data input pin
Negative LVDS differential data input pin
Positive LVDS differential data input pin
In this case, the identical pin of definition is connected with same three-prong in described first pin and second pin, can be connected to same three-prong as the PIN 5 of first connecting interface and the PIN 12 of second connecting interface, promptly be defined as the pin one of negative LVDS differential data input pin in the 3rd connecting interface.
Therefore, 5,6,8,9,11,12,17, No. 18 pins of first connecting interface can connect one to one with the 1-4 and the 7-10 pin of the 3rd connecting interface, and 12,13,15,16,18,19,24, No. 25 pins of second connecting interface can connect one to one with the 1-4 and the 7-10 pin of the 3rd connecting interface.
14 and No. 15 pins of first connecting interface can connect one to one with 5 and No. 6 pins of the 3rd connecting interface, and 21 and No. 22 pins of second connecting interface can connect one to one with 5 and No. 6 pins of the 3rd connecting interface, realize the transmission of LVDS clock signal.
When 18.5 cun LCM of test, signal generator can generate the LVDS differential data that is fit to 18.5 cun LCM, be transferred to 18.5 cun LCM by the 1-4 of the 3rd connecting interface and 5,6,8,9,11,12,17, No. 18 pins of the 7-10 pin and first connecting interface, and when 32 cun LCM of test, signal generator can generate the LVDS differential data that is fit to 18.5 cun LCM, is transferred to 32 cun LCM by the 1-4 of the 3rd connecting interface and 12,13,15,16,18,19,24, No. 25 pins of the 7-10 pin and second connecting interface.
Certainly,, then be connected to pins different in the 3rd connecting interface, illustrate as follows for the different pin of definition in first connecting interface and second connecting interface.
As the CE_V that exists among 32 cun LCM
COMAnd CTL_V
COM, then need in the 3rd connecting interface for this PIN is provided with independently pin, and can not be shared.
And as for the GND pin, can be that each independent GND distributes a pin in first connecting interface from the pin of the 3rd connecting interface, also can be the same pin that all GND pins in first connecting interface all are connected to the 3rd connecting interface, and this pin be connected with the ground signalling output pin of signal generator.
For other pin, the explanation no longer one by one of its connected mode.
In specific embodiment of the utility model, be to be the explanation that example is carried out, but should be understood that, on switching circuit board with two interfaces, the more interface corresponding with different model LCM can be set, so that can be used for the more test of the LCM of polytypic simultaneously.
Signal converting circuit board of the present utility model comprises:
Be used for first connecting interface that is connected with the liquid crystal module input interface of first model, first pin with first quantity;
Be used for second connecting interface that is connected with the liquid crystal module input interface of second model, second pin with second quantity;
Be used for from the 3rd connecting interface of the test signal of signal transmitting apparatus received signal generator generation, three-prong with the 3rd quantity;
Any one described first pin and second pin all are connected to a three-prong, in the pin of first connecting interface and second connecting interface, belong to different connecting interfaces, but define identical pin and be connected to same three-prong, the different pin of definition is connected with different three-prong in described first pin and second pin.
But described the 3rd connecting interface can be connected with pluggable mode with described signal transmitting apparatus.
Described signal converting circuit board comprises a substrate, and described first connecting interface and second connecting interface are arranged at the relative both sides of described substrate respectively.
The above is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a liquid crystal module test connecting apparatus is characterized in that, comprising:
The signal converting circuit board; With
The test signal that signal generator produces can be transferred to the signal transmitting apparatus of described signal converting circuit board;
Described signal converting circuit board is provided with:
Be used for first connecting interface that is connected with the liquid crystal module input interface of first model, have a plurality of first pins;
Be used for second connecting interface that is connected with the liquid crystal module input interface of second model, have a plurality of second pins;
Be used for receiving the 3rd connecting interface of described test signal, have a plurality of three-prongs from described signal transmitting apparatus;
Any one described first pin and second pin all are connected to a three-prong, in the pin of first connecting interface and second connecting interface, belong to different connecting interfaces, but define identical pin and be connected to same three-prong, the different pin of definition is connected with different three-prong in described first pin and second pin.
2. liquid crystal module test connecting apparatus according to claim 1 is characterized in that, but described the 3rd connecting interface is connected with pluggable mode with described signal transmitting apparatus.
3. liquid crystal module test connecting apparatus according to claim 1 and 2 is characterized in that, described signal converting circuit board comprises a substrate, and described first connecting interface and second connecting interface are arranged at the relative both sides of described substrate respectively.
4. a signal converting circuit board is characterized in that, comprising:
Be used for first connecting interface that is connected with the liquid crystal module input interface of first model, first pin with first quantity;
Be used for second connecting interface that is connected with the liquid crystal module input interface of second model, second pin with second quantity;
Be used for from the 3rd connecting interface of the test signal of signal transmitting apparatus received signal generator generation, three-prong with the 3rd quantity;
Any one described first pin and second pin all are connected to a three-prong, in the pin of first connecting interface and second connecting interface, belong to different connecting interfaces, but define identical pin and be connected to same three-prong, the different pin of definition is connected with different three-prong in described first pin and second pin.
5. signal converting circuit board according to claim 4 is characterized in that, but described the 3rd connecting interface can be connected with pluggable mode with described signal transmitting apparatus.
6. according to claim 4 or 5 described signal converting circuit boards, it is characterized in that described signal converting circuit board comprises a substrate, described first connecting interface and second connecting interface are arranged at the relative both sides of described substrate respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120089680 CN202084273U (en) | 2011-03-30 | 2011-03-30 | Liquid crystal module testing connector and signal transfer circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120089680 CN202084273U (en) | 2011-03-30 | 2011-03-30 | Liquid crystal module testing connector and signal transfer circuit board |
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| CN202084273U true CN202084273U (en) | 2011-12-21 |
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| CN 201120089680 Expired - Lifetime CN202084273U (en) | 2011-03-30 | 2011-03-30 | Liquid crystal module testing connector and signal transfer circuit board |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103345916A (en) * | 2013-06-21 | 2013-10-09 | 深圳市华星光电技术有限公司 | All-purpose circuit board of short-circuiting bar |
| 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 |
| CN104201526A (en) * | 2014-07-15 | 2014-12-10 | 上海微小卫星工程中心 | Universal signal switching device |
| WO2015089861A1 (en) * | 2013-12-20 | 2015-06-25 | 深圳市华星光电技术有限公司 | Signal plugboard for checking picture of liquid crystal display device |
-
2011
- 2011-03-30 CN CN 201120089680 patent/CN202084273U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103345916A (en) * | 2013-06-21 | 2013-10-09 | 深圳市华星光电技术有限公司 | All-purpose circuit board of short-circuiting bar |
| WO2014201722A1 (en) * | 2013-06-21 | 2014-12-24 | 深圳市华星光电技术有限公司 | Universal circuit board of short-circuiting bar |
| CN103345916B (en) * | 2013-06-21 | 2016-05-04 | 深圳市华星光电技术有限公司 | A kind of omnipotent circuit board of short bar |
| WO2015089861A1 (en) * | 2013-12-20 | 2015-06-25 | 深圳市华星光电技术有限公司 | Signal plugboard for checking picture of liquid crystal display device |
| CN104201526A (en) * | 2014-07-15 | 2014-12-10 | 上海微小卫星工程中心 | Universal signal switching device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |