Patent Publication Number: US-10770852-B2

Title: Circuit interconnecting device for lighting detection

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application is based on International Application No. PCT/CN2017/083964, filed on Mary 11, 2017, which is based upon and claims priority to Chinese Patent Application No. 201620591408.5, titled “circuit interconnecting device” filed on Jun. 15, 2016, the entire contents of which are incorporated herein by reference. 
     TECHNICAL FIELD 
     The present disclosure relates to the field of display product detection technology, and more particularly to a circuit interconnecting device. 
     BACKGROUND 
     In the display field of TFT-LCD (Thin Film Transistor Liquid Crystal Display), OLED (Organic Light-Emitting Diode) and so on, it is necessary to perform a lighting detection on the display production during manufacturing and before leaving factory. Specifically, a display driving signal is transmitted from a pattern generator to a display device through a circuit interconnecting device, and then a detection person may detect the display screen. 
     In the related art, when a product is performed detection, the process of replacing the circuit interconnecting board is complex, resulting in a longer waiting time for the replacement, which badly affecting the detection efficiency, and in turn the production rate of production line. 
     SUMMARY 
     An objective of the present disclosure is to provide a circuit interconnecting device. 
     An embodiment of the present disclosure provides a circuit interconnecting device, including a circuit connection board and a circuit board which is detachable, wherein: the circuit connection board includes an input terminal, an output terminal and an onboard slot member, the input terminal is coupled to the onboard slot member through a first circuit, and the output terminal is coupled to the onboard slot member through a second circuit; and the circuit board is inserted into the onboard slot member to connect the first circuit and the second circuit. 
     When a lighting detection is performed on a display production by using the circuit interconnecting device provided by the embodiment of the present disclosure, if the model of display product is changed, it is only necessary to pull the circuit board out from the onboard slot member and reinsert a circuit board with a matched pin definition into the onboard slot member. In comparison with the related art, the operation is simple and convenient, which greatly increases the efficiency of a lighting detection performed on a display production, and in turn increases the production rate. 
     In an embodiment, the onboard slot member is perpendicular to a board body of the circuit connection board, and a socket is upward, which may facilitate the pulling and inserting of the circuit board effortlessly. 
     In an embodiment, the input terminal of the circuit connection board is an input slot member, and the output terminal of the circuit connection board is an output slot member. 
     In an embodiment, a socket of the input slot member and a socket of the output slot member face away from the onboard slot member. 
     In an embodiment, the circuit board includes a first wiring for transmitting a non-power supply signal and a second wiring for transmitting a power supply signal, a distance from an end of the second wiring to an insertion end plane of the circuit board is larger than a distance from an end of the first wiring to the insertion end plane of the circuit board. Therefore, a data transmission circuit for signal is connected firstly before the circuit board is connected to a power supply, which may effectively prevent data from being disturbed, and may realize a hot plugging. 
     In an embodiment, the first circuit includes a plurality of wirings arranged in parallel, and the second circuit includes a plurality of wirings arranged in parallel. With such design, the interference between the adjacent wirings may be reduced, and the wiring layout may be optimized, so that the structure of the circuit connection board is more compact. 
     In an embodiment, a surface of the circuit board is provided with a plurality of first side wirings which are insulated from each other, another surface of the circuit board is provided with a plurality of second side wirings which are insulated from each other, and the plurality of second side wirings are connected to the plurality of first side wirings one by one. A slot wall of the onboard slot member has a plurality of first connection terminals which are connected to the first circuit and connected to the plurality of first side wirings correspondingly, and a plurality of second connection terminals which are connected to the second circuit and connected to the plurality of second side wirings correspondingly. With such design, the structure of the circuit board may be optimized, and the interference between the adjacent wirings may be reduced, so that the connection between the circuit board and the onboard slot member is more reliable, which is favorable to the expansion of the circuit board. 
     In an embodiment, the first side wiring and the second side wiring corresponding to each other are connected through a vial hole in the circuit board. With such scheme, the shapes and positions of the first and second side wirings may be designed flexibly, and the connection is reliable. Further, the manufacture of the circuit board is relatively simple, which obtains a low cost. 
     In an embodiment, the first side wiring and the second side wiring corresponding to each other are connected through a printed circuit disposed on the circuit board. 
     In an embodiment, the circuit interconnecting device further includes a jig body, an input circuit and an output circuit, wherein the circuit connection board is fixed on the jig body, the input circuit is connected to the input terminal of the circuit connection board, and the output circuit is connected to the output terminal of the circuit connection board. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic diagram of a circuit interconnecting device in the related art; 
         FIG. 2  is schematic diagram of a circuit interconnecting device according to an embodiment of the present disclosure; 
         FIG. 3  is schematic diagram of a circuit board according to an embodiment of the present disclosure; 
         FIG. 4  is schematic diagram of a circuit connection board according to an embodiment of the present disclosure; and 
         FIG. 5  is schematic diagram of a circuit board according to another embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The embodiments of the present disclosure provide a circuit interconnecting device to increase the efficiency of a lighting detection performed on a display production, and in turn to increase the production rate. In order to make the objective, technical solutions and advantages of the present disclosure more clear, the present disclosure will be described below with reference to the exemplary embodiments. 
     As shown in  FIG. 1 , in the related art, the circuit interconnecting board  31  is generally fixed to a jig body  32  through screws (provided at screw holes  37 ). The circuit interconnecting board  31  has an input slot member  33  and an output slot member  34 . An input flexible circuit board  35 , which may be connected to a pattern generator, is inserted into the input slot member  33 . An output flexible circuit board  36 , which may be connected to a display device, is inserted into the output slot member  34 . 
     With the rapid development of the display technology, more and more display product models are put forward. Since display products of different models correspond to different pin definitions on the circuit interconnecting board, the circuit interconnecting board should be replaced frequently during the detection of the display production. Specifically, the input flexible circuit board  35  and the output flexible circuit board  36  are pulled out; the screws are unbolted to remove the circuit interconnecting board  31  from the jig body  32 ; a circuit interconnecting board with a matched pin definition is fixed to the jig body through the screws; and the input flexible circuit board  35  and the output flexible circuit board  36  are inserted into the input slot member  33  and the output slot member  34  respectively. For the circuit interconnecting device shown in  FIG. 1 , the replacement of the circuit interconnecting board is complicated during the production detection. 
     As shown in  FIG. 2 , an embodiment of the present disclosure provides a circuit interconnecting device, including a circuit connection board  2  and a circuit board  5  which is detachable. The circuit connection board  2  includes an input terminal  6 , an output terminal  7  and an onboard slot member  8 , the input terminal  6  is coupled to the onboard slot member  8  through a first circuit  9 , and the output terminal  7  is coupled to the onboard slot member  8  through a second circuit  10 . The circuit board  5  is inserted into the onboard slot member  8  to make the first circuit  9  and the second circuit  10  electrically connected. The first circuit  9  and the second circuit  10  are conducting through the circuit board  5 . 
     In the embodiment shown in  FIG. 2 , the circuit interconnecting device may further include a jig body  1 , an input circuit  3  and an output circuit  4 . The circuit connection board  2  is fixed on the jig body  1 , the input circuit  3  is connected to the input terminal  6  of the circuit connection board  2 , and the output circuit  4  is connected to the output terminal of the circuit connection board  2 . The shape of the jig body  1  is not limited, and may be square or rectangular. The circuit connection board  2  is preferably fixed to the jig body  1  by a screw (provided at a screw hole  13  in the drawing and the screw is not shown in the drawing). If necessary, the circuit connection board  2  may be dismounted to be repaired and replaced. The types of the input circuit  3  and the output circuit  4  are not limited, and may be, for example, a printed circuit board or a flexible printed circuit board and so on. 
     The circuit interconnecting device provided by the embodiments of the present disclosure may be applied to the lighting detection of display products of various types including but not limited to a TFT-LCD display assembly and an OLED display assembly. During detection, it is necessary to use a circuit board that matching the pin definition of the display product. 
     When a lighting detection is performed on a display production by using the circuit interconnecting device provided by the above embodiment, if the model of display product is changed, it is only necessary to pull the circuit board out from the onboard slot member and reinsert a circuit board with a matched pin definition into the onboard slot member. In comparison with the related art, the operation is simple and convenient, which greatly increases the efficiency of a lighting detection performed on a display production, and in turn increases the production rate. 
     The disposing position of the onboard slot member  8  is not limited, and a socket thereof may be directed upwardly, toward a horizontal direction or toward other directions. Still referring to  FIG. 2 , in a preferable embodiment, the onboard slot member  8  is perpendicular to the board body of the circuit connection board  2 , and the socket is upward, which may facilitate the pulling and inserting of the circuit board  5  effortlessly. 
     In the embodiment as shown in  FIG. 2 , the input terminal  6  of the circuit connection board  2  is an input slot member, and the output terminal  7  of the circuit connection board  7  is an output slot member. The input and output circuits  3  and  4  are inserted into the input and output slot members respectively, so that the operation of the pulling or inserting of the input and output circuits  3  and  4  are convenient, and the input and output circuits  3  and  4  are in protection. 
     In the above embodiment, sockets of the input slot member and the output slot member face away from the onboard slot member  8 . In addition, the input slot member and the output slot member may be disposed at a same side with the sockets being directed towards a same direction. The disposing positions of the input slot member, the output slot member and the onboard slot member  8  are related to the layout of the first and second circuits  9  and  10  on the circuit connection board  2 , which need to be designed according to practical situations. 
     As shown in  FIG. 3 , in a preferable embodiment of the present disclosure, the circuit board  5  includes a first wiring  11  for transmitting a non-power supply signal and a second wiring  12  for transmitting a power supply signal. A distance L 1  from an end of the second wiring  12  to an insertion end plane of the circuit board  5  is larger than a distance L 2  from an end of the first wiring  11  to the insertion end plane of the circuit board  5 . Therefore, a data transmission circuit for signal may be connected firstly before the circuit board  5  is connected to a power supply, which may effectively prevent data from being disturbed, and may realize a hot plugging. 
     As shown in  FIG. 4 , in a preferable embodiment, the first circuit  9  includes a plurality of wirings arranged in parallel, and the second circuit  10  includes a plurality of wirings arranged in parallel. With such design, the interference between the adjacent wirings may be reduced, and the wiring layout may be optimized, so that the structure of the circuit connection board  2  is more compact. 
     As shown in  FIGS. 4 and 5 , in a preferable embodiment, a surface of the circuit board  5  is provided with a plurality of first side wirings  14  which are insulated from each other, another surface of the circuit board  5  is provided with a plurality of second side wirings  15  which are insulated from each other, and the plurality of second side wirings  15  are connected to the plurality of first side wirings  14  one by one. A slot wall of the onboard slot member  8  has a plurality of first connection terminals (which are not shown with a reference sign in the drawing) which are connected to the first circuit  9  and connected to the plurality of first side wirings  14  correspondingly, and a plurality of second connection terminals (which are not shown with a reference sign in the drawing) which are connected to the second circuit  10  and connected to the plurality of second side wirings  15  correspondingly. 
     With such design, the structure of the circuit board  5  may be optimized, and the interference between the adjacent wirings may be reduced, so that the connection between the circuit board  5  and the onboard slot member  8  is more reliable, which is favorable to the expansion of the circuit board. 
     The connection structure of the first side wiring  14  and the second side wiring  15  corresponding to each other is not limited. For example, in an embodiment, the first side wiring and the second side wiring corresponding to each other are connected through a printed circuit disposed on a board body of the circuit board. 
     Still referring to  FIG. 5 , in an embodiment, the first side wiring  14  and the second side wiring  15  corresponding to each other are connected through a vial hole  16  in the circuit board  5 . With such scheme, the shapes and positions of the first and second side wirings  14  and  15  may be designed flexibly (the shapes of the first and second side wirings  14  and  15  may be the same or may be different, and the pin sequences of the first and second side wirings  14  and  15  may be the same or different), and the connection is reliable. Further, the manufacture of the circuit board  5  is relatively simple, which obtains a low cost. 
     Based on the above, when a lighting detection is performed on a display production by using the circuit interconnecting device provided by the above embodiments, the efficiency of a lighting detection performed on a display production may be increased, and the production rate may be increased, which is favorable to extending the service life of the input circuit, the output circuit and the circuit interconnecting device. 
     It will be apparent to those skilled in the art that various changes and modifications may be made to the present disclosure without departing from the spirit and scope of the present disclosure. In this way, if the modifications and variations of the present disclosure are within the scope of the claims of the present disclosure and the equivalents thereof, the present disclosure is intended to include such modifications and variations