CN102568361B - Method and device for detecting XFPC (X Sustain Flexible Printed Circuit board) connection state - Google Patents
Method and device for detecting XFPC (X Sustain Flexible Printed Circuit board) connection state Download PDFInfo
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- CN102568361B CN102568361B CN201110455622.XA CN201110455622A CN102568361B CN 102568361 B CN102568361 B CN 102568361B CN 201110455622 A CN201110455622 A CN 201110455622A CN 102568361 B CN102568361 B CN 102568361B
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Abstract
The invention provides a method and device for detecting an XFPC (X Sustain Flexible Printed Circuit board) connection state. The method comprises the following steps of: detecting whether a flexible connector XFPC in a plasma display panel (PDP) module is normally connected or not; and when detecting that the XFPC in the PDP module is not normally connected, setting the PDP module at a non-operating state. According to the method and device provided by the invention, the problems in the relative technology that a temperature on a key path is raised and exceeds the standard and a face frame is burnt because certain XFPC is not connected are solved, so that the reliability of the PDP module is guaranteed and the reliability of the system is further improved.
Description
Technical field
The present invention relates to PDP (Plasma Display Panel, plasma display panel) module field, particularly, relate to detection method and the device of a kind of XFPC (XSUS Flexible Printed Circuit board maintains the flexible connector of drive circuit board) connection status.
Background technology
Along with PDP module is to thinner narrower trend development, the border width outside viewing area is more and more narrow, and the full electrode zone of X electrode side narrows, and therefore, makes electric conduction resistive large, in the case of same X electric current, causes shielding temperature rise.For fear of screen temperature rise, must optimize full electrode zone by screen structural design, to increase conductive path, thereby avoid shielding temperature rise, still, in the time optimizing full electrode zone with increase conductive path, the XFPC that must ensure both sides effectively connects, and exceeds standard otherwise must cause shielding temperature.
But, in current PDP module, great majority are good connections that the mode by manufacturing ensures XFPC, as shown in Figure 1, XSUS (the X Sustain of PDP module, maintaining driving circuit) plate is connected with XFPC by a network, in the time adopting the mode of manufacturing to ensure the good connection of XFPC, even if there is other XFPC to connect, PDP module also can normally carry out work, but under this scene, the electric current of X electrode will all be concentrated the FPC by connecting, cause the electric conduction resistive of the FPC in connection status large, and then cause the temperature in critical path raise so that exceed standard, thereby can easy burn surface frame.
Summary of the invention
The invention provides a kind of detection method and device of XFPC connection status, at least to solve raising and exceed standard and the problem of face frame burn because indivedual XFPC connect temperature in the critical path causing in correlation technique.
According to an aspect of the present invention, provide a kind of detection method of XFPC connection status, it comprises: whether the XFPC detecting in PDP module connects normally; Detecting XFPC malunion in PDP module when normal, PDP module is arranged on to off position.
Whether connect normal step comprise: by XSUS plate, logical circuit is connected with XFPC if preferably, detecting XFPC in PDP module; The logic state of decision logic circuit output, if the logic state of logical circuit output is low, judges that the XFPC in PDP module connects normal; If logic state is high, judge that the XFPC malunion in PDP module is normal.
Preferably, step logical circuit being connected with XFPC by XSUS plate comprises: the positive pole of diode and the first output terminal of XSUS plate as input end in optocoupler is connected, and the negative pole of diode is connected with the second output terminal of XSUS plate; Transistor AND gate logical circuit as output terminal in optocoupler is connected.
Preferably, the step of the logic state of decision logic circuit output comprises: at optocoupler, during in closed condition, it is low judging logic state; During in opening state, judge logic state for high at optocoupler.
Preferably, the step that PDP module is arranged on to off position comprises: obtain logic state; If logic state is high, forbid transmitting control signal to PDP module, so that PDP module is placed in to idle state; If logic state is low, transmit control signal to PDP module, make PDP module be placed in the state of work.
According to a further aspect in the invention, provide a kind of pick-up unit of XFPC connection status, it comprises: whether detection part, connect normally for detection of the XFPC in PDP module; Control assembly, in the time that the XFPC malunion that detects PDP module is normal, is arranged on off position by PDP module.
Preferably, detection part comprises: the first acquiring unit, for obtaining the logic state of the logical circuit output being connected with XFPC by XSUS plate; Wherein, if logic state is low, the XFPC in PDP module connects normal; If logic state is high, the XFPC malunion in PDP module is normal.
Preferably, the first acquiring unit comprises: optocoupler, and the positive pole of diode and the first output terminal of XSUS plate as input end in optocoupler are connected, and the negative pole of diode is connected with the second output terminal of XSUS plate; Logical circuit, is connected with the transistor as output terminal in optocoupler.
Preferably, logical circuit comprises: logic state output port, and wherein, at optocoupler, during in closed condition, the logic state of logic state output port output is low; At optocoupler, during in opening state, the logic state of logic state output port output be height.
Preferably, control assembly comprises: second acquisition unit, for obtaining logic state; Control module, when being high in logic state, forbids transmitting control signal to PDP module, so that PDP module is placed in to idle state; , transmit control signal to PDP module while being low in logic state, make PDP module be placed in the state of work.
In the present invention, connection status to the XFPC in PDP module detects, in the time detecting that XFPC in PDP module effectively connects, PDP module is arranged on to off position, and when avoiding not connecting due to the XFPC in PDP module, X electrode current is intensively by the FPC connecting, to cause the temperature exceeding standard in the critical path of PDP module, opposite frame easily causes burn, thereby has ensured the reliability of PDP module, and then has improved the reliability of system.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the connected mode of the XSUS of correlation technique and XFPC;
Fig. 2 is the preferred structural drawing of one according to the pick-up unit of the XFPC connection status of the embodiment of the present invention;
Fig. 3 is the preferred structural drawing of another kind according to the pick-up unit of the XFPC connection status of the embodiment of the present invention;
Fig. 4 is the preferred circuit diagram of one connecting in circuit according to the optocoupler of the embodiment of the present invention;
Fig. 5 is according to the preferred schematic diagram of the one of the connected mode of the XSUS of the embodiment of the present invention and XFPC;
Fig. 6 is the preferred process flow diagram of one according to the detection method of the XFPC connection status of the embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
Embodiment 1
Fig. 2 is the preferred structural drawing of one according to the pick-up unit of the XFPC connection status of the embodiment of the present invention, and as shown in Figure 2, the pick-up unit of this XFPC connection status comprises: whether detection part 202, connect normally for detection of the XFPC in PDP module; Control assembly 204, is connected with detection part 202, in the time that the XFPC malunion that detects PDP module is normal, PDP module is arranged on to off position.
In above preferred embodiment, connection status to the XFPC in PDP module detects, in the time detecting that XFPC in PDP module effectively connects, PDP module is arranged on to off position, and when avoiding not connecting due to the XFPC in PDP module, X electrode current is intensively by the FPC connecting, to cause the temperature exceeding standard in the critical path of PDP module, opposite frame easily causes burn, thereby has ensured the reliability of PDP module, and then has improved the reliability of system.
On the basis of above preferred embodiment, the invention provides a kind of preferred control assembly 204, as shown in Figure 3, this control assembly 204 comprises: second acquisition unit 2041, for obtaining logic state; Control module 2042, is connected with second acquisition unit 2041, when being high in logic state, forbids transmitting control signal to PDP module, so that PDP module is placed in to idle state; , transmit control signal to PDP module while being low in logic state, make PDP module be placed in the state of work.In the present embodiment, judge whether PDP module to be placed in duty according to logic state, while avoiding the indivedual XFPC connection not yet in effect in PDP module, PDP module is placed in to duty, the electric current of X electrode is intensively by the FPC connecting, cause the temperature rising of the critical path of PDP module to exceed standard, even cause face frame burn, thereby improved the performance of PDP module.
On the basis of above-described embodiment, the invention provides a kind of preferred detection part 202, as shown in Figure 3, this detection part 202 comprises: the first acquiring unit 2021, the logic state of exporting for obtaining the logical circuit 400 that is connected with XFPC by XSUS plate; Wherein, if logic state is low, the XFPC in PDP module connects normal; If logic state is high, the XFPC malunion in PDP module is normal.In the present embodiment, the logic state of exporting according to logical circuit 400 judges the XFPC connection status in PDP module, detects the XFPC connection status in PDP module by circuit, has improved the accuracy of the connection status that judges the XFPC in PDP module.
On the basis of above-mentioned each preferred embodiment, the invention provides a kind of preferred the first acquiring unit 2021, as shown in Figure 4, this first acquiring unit 2021 comprises: optocoupler OP4001, in optocoupler OP4001 as the positive pole of diode of input end and the first output terminal of XSUS plate (for example, pin 1-10 on XSUS plate as shown in Figure 5) connect, the second output terminal of the negative pole of diode and XSUS plate (for example, the pin 11-12 on XSUS plate as shown in Figure 5) connects; Logical circuit 400, is connected with the transistor as output terminal in optocoupler.In the present embodiment, XSUS plate is connected with logical circuit 400 by optocoupler, the connection status of optocoupler is passed through after logical circuit 400, the output terminal output logic state of logical circuit 400, and realization can judge according to the output state of logical circuit 400 connection status of the XFPC in PDP module.
Further, as shown in Figure 4, the concrete connected mode of optocoupler OP4001 in above-described embodiment is that the positive pole of diode and first output terminal of XSUS plate of the input end of optocoupler OP4001 is connected, as shown in Figure 5, the first output terminal of XSUS plate is the 1-10 pin of the XSUS plate output terminal obtaining that is connected together, the negative pole of diode is connected with the second output terminal of XSUS plate, as shown in Figure 5, the second output terminal of XSUS plate is 11 of XSUS plate, the 12 pins output terminal obtaining that is connected together, therefore, realize all pins of XSUS plate are connected with the diode of the form of two networks and the input end of OP4001, if the 1-10 pin of the XSUS plate output terminal obtaining that is connected together is network 1, 11 of XSUS plate, the 12 pins output terminal obtaining that is connected together is network 2, can realize by judging whether network 1 and network 2 are connected the conducting state of the diode of the input end that judges optocoupler OP4001.In the time that XFPC is not connected with XSUS plate, network 1 is not connected each other with network 2, and in the time that XFPC is normally connected to XSUS plate, network 1 connects together by XFPC with network 2, judges as shown in table 1 below to the logic of XFPC connection status:
Table 1
| XFPC connection status | The logic state of OUTPUT output |
| Connect | L |
| Do not connect | H |
Certainly, above-mentioned table 1 is the preferred example of one of decision logic state just, when output logic state can also be XFPC connection, the logic state of the output terminal OUTPUT output in Fig. 4 is high (H), when XFPC does not connect, the logic state of OUTPUT output is low (L), and the present invention does not limit this.
In addition, the transistor of the output terminal of optocoupler OP4001 can be triode, the emitter of triode is connected with ground, and the collector of triode is connected with logical circuit 400 by resistance, and then realizes and can pass through logical circuit 400 output logic states according to the conducting state of optocoupler.
Further, below in conjunction with Fig. 4 to being further described according to the principle of the conducting state output logic state of optocoupler OP4001, particularly:
In the time that PDP module is normally worked, XFPC connects normal, now, the diode both end voltage of optocoupler OP4001 input end is 0, the duty of the diode of optocoupler OP4001 input end is for closing, and the triode of optocoupler OP4001 output terminal is not open-minded, and the logic state of optocoupler OP4001 is high, and triode Q4017 duty is conducting, the logic state that logical circuit 400 is exported is L (low).
When XFPC connection not yet in effect in PDP module, the negative pole of the diode of optocoupler OP4001 input end passes through resistance eutral grounding, the positive pole of the diode of optocoupler OP4001 input end is connected with the output terminal of XSUS plate, in the time of start, by XSUS plate, the positive pole of the diode of optocoupler OP4001 input end has voltage and adds, now the input logic state of optocoupler OP4001 is high, optocoupler is operated in opening state, after optocoupler OP4001 opens, the triode conducting of optocoupler OP4001 output terminal, the logic state of optocoupler OP4001 output terminal is L, triode Q4017 is after base stage input low level, triode Q4017 is operated in opening state, the logic state of triode Q4017 is high, now, the logic state that logical circuit 400 is exported is H.
On the basis of above-described embodiment, as shown in Figure 4, at optocoupler, during in closed condition, the logic state of the logic state output port output of logical circuit 400 is low; At optocoupler, during in opening state, the logic state of the logic state output port output of logical circuit 400 be height.Like this, can judge the logic state that logical circuit 400 is exported according to the conducting state of optocoupler, to judge the connection status of the XFPC in PDP module according to the logic state of output.
Embodiment 2
On the basis of Fig. 2-5, the invention provides a kind of detection method of XFPC connection status, as shown in Figure 6, the detection method of this XFPC connection status comprises:
S602: whether the XFPC detecting in PDP module connects normally;
S604: detecting XFPC malunion in PDP module when normal, PDP module is arranged on to off position.
In above preferred embodiment, connection status to the XFPC in PDP module detects, in the time detecting that XFPC in PDP module effectively connects, PDP module is arranged on to off position, and when avoiding not connecting due to the XFPC in PDP module, X electrode current is intensively by the FPC connecting, to cause the temperature exceeding standard in the critical path of PDP module, opposite frame easily causes burn, thereby has ensured the reliability of PDP module, and then has improved the reliability of system.
On the basis of above-described embodiment, whether the XFPC the invention provides in a kind of preferred detection PDP module connects normal method, particularly, whether the XFPC in this detection PDP module connects normal method and comprises: by XSUS plate, logical circuit is connected with XFPC; The logic state of decision logic circuit output, if the logic state of logical circuit output is low, judges that the XFPC in PDP module connects normal; If logic state is high, judge that the XFPC malunion in PDP module is normal.In the present embodiment, judge the XFPC connection status in PDP module according to the logic state of logical circuit output, detect the XFPC connection status in PDP module by circuit, improved the accuracy of the connection status that judges the XFPC in PDP module.
On the basis of above-mentioned each preferred embodiment, the invention provides a kind of preferred scheme logical circuit being connected with XFPC by XSUS plate, particularly, scheme that should logical circuit was connected with XFPC by XSUS plate comprises: using in optocoupler as the positive pole of diode of input end and the first output terminal of XSUS plate (for example, pin 1-10 on XSUS plate as shown in Figure 5) connect, and the second output terminal of the negative pole of diode and XSUS plate (for example, the pin 11-12 on XSUS plate as shown in Figure 5) is connected; Transistor AND gate logical circuit as output terminal in optocoupler is connected.In the present embodiment, XSUS plate is connected with logical circuit by optocoupler, the connection status of optocoupler is passed through after logical circuit, the output terminal output logic state of logical circuit, and realization can judge according to the output state of logical circuit the connection status of the XFPC in PDP module.
Further, as shown in Figure 4, the concrete connected mode of optocoupler OP4001 in above-described embodiment is that the positive pole of diode and first output terminal of XSUS plate of the input end of optocoupler OP4001 is connected, as shown in Figure 5, the first output terminal of XSUS plate is the 1-10 pin of the XSUS plate output terminal obtaining that is connected together, the negative pole of diode is connected with the second output terminal of XSUS plate, as shown in Figure 5, the second output terminal of XSUS plate is 11 of XSUS plate, the 12 pins output terminal obtaining that is connected together, therefore, realize all pins of XSUS plate are connected with the diode of the input end of optocoupler OP4001 with the form of two networks, if the 1-10 pin of the XSUS plate output terminal obtaining that is connected together is network 1, 11 of XSUS plate, the 12 pins output terminal obtaining that is connected together is network 2, can realize by judging whether network 1 and network 2 are connected the conducting state of the diode of the input end that judges optocoupler OP4001, in the time that XFPC is not connected with XSUS plate, network 1 is not connected with network 2, in the time that XFPC is normally connected to XSUS plate, network 1 connects together by XFPC with network 2, the logic of XFPC connection status is judged as shown in Table 1 above, certainly, above-mentioned table 1 is the preferred example of one of decision logic state just, when output logic state can also be XFPC connection, the logic state of the output terminal OUTPUT output in Fig. 4 is high (H), when XFPC does not connect, the logic state of OUTPUT output is low (L), the present invention does not limit this.
In addition, the transistor of the output terminal of optocoupler OP4001 can be triode, the emitter of triode is connected with ground, and the collector of triode is connected with logical circuit by resistance, and then realizes and can pass through logical circuit output logic state according to the conducting state of optocoupler.
Further, below in conjunction with Fig. 4 to being further described according to the principle of the conducting state output logic state of optocoupler OP4001, particularly:
In the time that PDP module is normally worked, XFPC connects normal, now, the diode both end voltage of optocoupler OP4001 input end is 0, the duty of the diode of optocoupler OP4001 input end is for closing, and the triode of optocoupler OP4001 output terminal is not open-minded, and the logic state of optocoupler OP4001 is high, and triode Q4017 duty is conducting, the logic state of logical circuit output is L (low);
When XFPC connection not yet in effect in PDP module, the negative pole of the diode of optocoupler OP4001 input end passes through resistance eutral grounding, the positive pole of the diode of optocoupler OP4001 input end is connected with the output terminal of XSUS plate, in the time of start, the positive pole of the diode by XSUS plate optocoupler OP4001 input end has voltage and adds, now the input logic state of optocoupler OP4001 is high, optocoupler is operated in opening state, after optocoupler OP4001 opens, the triode conducting of optocoupler OP4001 output terminal, the logic state of optocoupler OP4001 output terminal is L (low), triode Q4017 is after base stage input low level, triode Q4017 is operated in opening state, the logic state of triode Q4017 is high, now, the logic state of logical circuit output is H (height).
On the basis of above-mentioned each preferred embodiment, as shown in Figure 4, at optocoupler, during in closed condition, the logic state of the logic state output port output of logical circuit is low; At optocoupler, during in opening state, the logic state of the logic state output port output of logical circuit be height.Like this, can realize the logic state of judging logical circuit output according to the conducting state of optocoupler, to judge the connection status of the XFPC in PDP module according to the logic state of output.
On the basis of above-mentioned each preferred embodiment, the invention provides a kind of method that preferably PDP module is arranged on to off position, particularly, this method that PDP module is arranged on to off position comprises: obtain logic state; If logic state is high, forbid transmitting control signal to PDP module, so that PDP module is placed in to idle state; If logic state is low, transmit control signal to PDP module, make PDP module be placed in the state of work.In the present embodiment, judge whether PDP module to be placed in duty according to logic state, while avoiding the indivedual XFPC connection not yet in effect in PDP module, PDP module is placed in to duty, the electric current of X electrode is intensively by the FPC connecting, cause the temperature rising of the critical path of PDP module to exceed standard, even cause face frame burn, thereby improved the performance of PDP module.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in memory storage and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. a detection method for XFPC connection status, is characterized in that, comprising:
Whether the flexible connector XFPC that maintains drive circuit board detecting in plasma display panel PDP module connects normally;
Detecting XFPC malunion in described PDP module when normal, described PDP module is arranged on to off position;
Whether connect normal step comprise: by maintaining driving circuit XSUS plate, logical circuit is connected with described XFPC if wherein, detecting XFPC in PDP module; Judge the logic state of described logical circuit output, if the logic state of described logical circuit output is low, judge that the XFPC in described PDP module connects normal; If described logic state is high, judge that the XFPC malunion in described PDP module is normal;
Wherein, by XSUS plate, logical circuit is comprised with the step that described XFPC is connected: the positive pole of diode and the first output terminal of described XSUS plate as input end in optocoupler is connected, and the negative pole of described diode is connected with the second output terminal of described XSUS plate; To in described optocoupler, connect as logical circuit described in the transistor AND gate of output terminal.
2. method according to claim 1, is characterized in that, judges that the step of the logic state of described logical circuit output comprises:
At described optocoupler, during in closed condition, it is low judging described logic state;
During in opening state, judge described logic state for high at described optocoupler.
3. method according to claim 1 and 2, is characterized in that, the step that described PDP module is arranged on to off position comprises:
Obtain described logic state;
If described logic state is high, forbid transmitting control signal to described PDP module, so that described PDP module is placed in to idle state;
If described logic state is low, transmit control signal to described PDP module, make described PDP module be placed in the state of work.
4. a pick-up unit for XFPC connection status, is characterized in that, comprising:
Whether detection part, connect normally for detection of the flexible connector XFPC that maintains drive circuit board in PDP module;
Control assembly, in the time that the XFPC malunion that detects described PDP module is normal, is arranged on off position by described PDP module;
Wherein, described detection part comprises: the first acquiring unit, for obtaining the logic state by maintaining the logical circuit output that driving circuit XSUS plate is connected with described XFPC; Wherein, if described logic state is low, the XFPC in described PDP module connects normal; If described logic state is high, the XFPC malunion in described PDP module is normal;
Wherein, described the first acquiring unit comprises: optocoupler, and the positive pole of diode and the first output terminal of described XSUS plate as input end in described optocoupler are connected, and the negative pole of described diode is connected with the second output terminal of described XSUS plate; Described logical circuit, is connected with the transistor as output terminal in described optocoupler.
5. device according to claim 4, is characterized in that, described logical circuit comprises: logic state output port, and wherein, at described optocoupler, during in closed condition, the logic state of described logic state output port output is low; At described optocoupler, during in opening state, the described logic state of described logic state output port output be height.
6. according to the device described in claim 4 or 5, it is characterized in that, described control assembly comprises:
Second acquisition unit, for obtaining described logic state;
Control module, when being high in described logic state, forbids transmitting control signal to described PDP module, so that described PDP module is placed in to idle state; , transmit control signal to described PDP module while being low in described logic state, make described PDP module be placed in the state of work.
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| CN201110455622.XA CN102568361B (en) | 2011-12-30 | 2011-12-30 | Method and device for detecting XFPC (X Sustain Flexible Printed Circuit board) connection state |
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Effective date of registration: 20170525 Address after: 519090 Guangdong province Zhuhai Sanzao Management District Jinwan District Gimhae Industrial City fourth layer Patentee after: ZHUHAI DINGXIE ELECTRONICS CO.,LTD. Address before: Changhong Industrial Park, 186 No. 621000 Sichuan city in Mianyang Province Economic Development Zone Avenue in the middle of mianzhou Patentee before: SICHUAN COC DISPLAY DEVICES Co.,Ltd. |
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