Liquid crystal display driving IC

Abstract

The utility model relates to the technical field of liquid crystal display driving ICs, in particular to a liquid crystal display driving IC, which comprises a circuit board, a driving IC and a protective shell. Compared with the prior art, the circuit board serves as a main body, installation positions are conveniently provided for the driving IC, the first connector and the second connector, the bottom end of the protection shell is fixedly connected with the multiple welding strips, then a safety barrier is formed outside the driving IC, the first connector and the second connector, on one hand, protection is improved, and on the other hand, the protection effect is improved. And on the other hand, electromagnetic shielding is carried out, the three heat conduction pads are arranged and located over the driving IC, the first connector and the second connector respectively, so that pressure is conveniently applied to the first flat cable and the second flat cable, and the first flat cable and the second flat cable are stably matched with the first connector and the second connector; and loosening caused by external influence is avoided, so that the problems existing in the prior art are effectively solved, the overall structure is simple, and application and popularization are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display driver IC, in particular to a liquid crystal display driver IC. Background Art

[0002] The driver IC is actually a set of integrated circuit chip devices, which is used to adjust and control the phase, peak value, frequency, etc. of the potential signal on the transparent electrode, establish a driving electric field, and finally realize the information display of the liquid crystal. The display driver IC is the main part of the display imaging system, which integrates components such as resistors, regulators, comparators and power transistors, including LCD modules and display subsystems.

[0003] Liquid crystal display driver usually consists of a driver board and a driver IC, and then is electrically connected to an external liquid crystal display screen through a cable. The traditional liquid crystal display driver IC is directly welded on the driver board and installed as a whole inside the shell of the machine, but there is no corresponding protective structure on the outside, and during the use process, the cable plug is affected by vibration factors and is prone to loosening, which affects signal transmission. Based on this, a liquid crystal display driver IC is proposed. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a liquid crystal display driver IC, which effectively solves the deficiencies of the prior art.

[0005] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a liquid crystal display driver IC, including a circuit board, a driver IC and a protective shell, a plurality of solder contacts are arranged on one side of the top surface of the circuit board, the driver IC is fixedly connected to the plurality of solder contacts by soldering, welding strips are arranged on the four sides of the top surface of the circuit board, the bottom end of the protective shell is fixedly connected to the welding strips by solder, a first connector is fixedly connected to the middle part of the top surface of the circuit board, a second connector is fixedly connected to the other side of the top surface of the circuit board, the outer walls of the first connector and the second connector are respectively provided with a first row of wires and a second row of wires, and both pass through the protective shell respectively.

[0006] Preferably, one side of the circuit board close to the top surface of the driver IC is provided with four raised portions, the outer shapes of the four raised portions are all L-shaped, and the four are slidably connected to the four corners of the driver IC respectively. By using this scheme, it is convenient to limit the placement of the driver IC, so that the wiring pins on the driver IC correspond one by one to multiple welding contacts, which is convenient for stabilizing the position of the driver IC during the welding process.

[0007] Preferably, any of the above schemes is that a metal cover plate is provided on the top surface of the driver IC, and a gap is left between the top surface of the metal cover plate and the top wall of the protective shell. By using this scheme, the metal cover plate is convenient for covering the top surface of the driver IC, thereby increasing its contact area with the external air. At the same time, through the thermal pad, the heat generated by the driver IC during operation is conveniently conducted to the protective shell, thereby facilitating heat dissipation.

[0008] Preferably, any of the above schemes is that three thermal pads are respectively provided on the top surface of the inner wall of the protective shell, and the three thermal pads are respectively located directly above the driver IC, the first connector and the second connector. By using this scheme, it is convenient to apply pressure to the first and second cables, so that the two can be stably matched with the first connector and the second connector to avoid looseness due to external influences.

[0009] Preferably, any of the above schemes has through grooves on the sides of the protective shell close to the first and second rows of cables. By using this scheme, the first and second rows of cables can be led out to the outside through the through grooves, thereby facilitating electrical connection with an external LCD screen and a power drive, thereby providing electrical energy support for the LCD screen.

[0010] The utility model has the following advantages:

[0011] 1. The liquid crystal display driver IC is provided with a circuit board as the main body, so as to provide an installation position for the driver IC, the first connector and the second connector. The bottom end of the protective shell is fixedly connected to a plurality of welding strips, so as to form a safety barrier outside the driver IC, the first connector and the second connector. On the one hand, the protection is improved, and on the other hand, it is used for electromagnetic shielding. Three thermal pads are provided, and the three thermal pads are respectively located above the driver IC, the first connector and the second connector, so as to apply pressure to the first and second cables, so that the two can be stably matched with the first connector and the second connector to avoid loosening due to external influences, thereby effectively solving the problems existing in the prior art. The overall structure is simple and convenient for popularization and use.

[0012] 2. The liquid crystal display driver IC is provided with a plurality of welding contacts, so that the wiring pins of the driver IC are respectively welded and connected with the plurality of welding contacts to achieve electrical connection. By providing four protrusions, the placement of the driver IC can be limited before welding, so that the wiring pins of the driver IC correspond one by one with the plurality of welding contacts, which is convenient for users to use welding tools for subsequent welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0014] Figure 2This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0015] Figure 3 This is a schematic diagram of the circuit board structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the protective shell structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the structure of the driver IC of the utility model.

[0018] In the figure: 1-circuit board, 2-first row of wires, 3-protective shell, 4-second row of wires, 5-metal cover, 6-welding bar, 7-second connector, 8-first connector, 9-driver IC, 10-raised portion, 11-welding contact point, 12-thermal pad, 13-through groove. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0020] like Figures 1 to 5 As shown, a liquid crystal display driver IC includes a circuit board 1, a driver IC 9 and a protective shell 3. A plurality of solder contacts 11 are arranged on one side of the top surface of the circuit board 1. The driver IC 9 is fixedly connected to the plurality of solder contacts 11 by soldering. Welding bars 6 are arranged on the four sides of the top surface of the circuit board 1. The bottom end of the protective shell 3 is fixedly connected to the welding bars 6 by soldering. A first connector 8 is fixedly connected to the middle of the top surface of the circuit board 1. A second connector 7 is fixedly connected to the other side of the top surface of the circuit board 1. The outer walls of the first connector 8 and the second connector 7 are respectively provided with a first row of cables 2 and a second row of cables 4, and both pass through the protective shell 3 respectively.

[0021] Four protrusions 10 are provided on one side of the circuit board 1 close to the top surface of the driver IC9. The four protrusions 10 are all L-shaped in shape, and are slidably connected to the four corners of the driver IC9 respectively. As an optional technical solution of the utility model, this facilitates the placement of the driver IC9 to limit the position, so that the wiring pins on the driver IC9 correspond one by one to the multiple welding contacts 11, which is convenient for stabilizing the position of the driver IC9 during the welding process.

[0022] A metal cover plate 5 is provided on the top surface of the driver IC 9, and a gap is left between the top surface of the metal cover plate 5 and the top wall of the protective shell 3. As an optional technical solution of the utility model, the metal cover plate 5 is convenient for covering the top surface of the driver IC 9 to increase its contact area with the external air. At the same time, through the thermal pad 12, the heat generated by the driver IC 9 during operation is conveniently conducted to the protective shell 3 for heat dissipation.

[0023] Three thermal pads 12 are respectively arranged on the top surface of the inner wall of the protective shell 3. The three thermal pads 12 are respectively located directly above the driver IC 9, the first connector 8 and the second connector 7. As an optional technical solution of the utility model, it is convenient to apply pressure to the first cable 2 and the second cable 4 so that the two can be stably matched with the first connector 8 and the second connector 7 to avoid loosening due to external influences.

[0024] The protective shell 3 is provided with through grooves 13 on the sides close to the first row of cables 2 and the second row of cables 4. As an optional technical solution of the present invention, the first row of cables 2 and the second row of cables 4 can be led out to the outside through the through grooves 13, so as to be electrically connected to the external LCD screen and power drive, so as to provide power support for the LCD screen.

[0025] In summary, when the user uses it, the circuit board 1 is set as the main body, which is convenient for providing an installation position for the driver IC 9, the first connector 8 and the second connector 7, and the bottom end of the protective shell 3 is fixedly connected to the plurality of welding strips 6, thereby forming a safety barrier outside the driver IC 9, the first connector 8 and the second connector 7, which improves protection on the one hand and is used for electromagnetic shielding on the other hand. By setting three thermal pads 12, and the three thermal pads 12 are respectively located directly above the driver IC 9, the first connector 8 and the second connector 7, it is convenient to apply pressure to the first cable 2 and the second cable 4, so that The two are stably matched with the first connector 8 and the second connector 7 to avoid looseness due to external influences, thereby effectively solving the problems existing in the prior art. The overall structure is simple and easy to promote and use. By setting a plurality of welding contacts 11, it is convenient for the wiring pins of the driver IC9 to be respectively welded and connected with the plurality of welding contacts 11 to achieve electrical connection. By setting four protrusions 10, it is convenient to limit the placement of the driver IC9 before welding, so that the wiring pins of the driver IC9 correspond one by one to the plurality of welding contacts 11, which is convenient for users to use welding tools for subsequent welding.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid crystal display driver IC, characterized in that: The invention comprises a circuit board (1), a driver IC (9) and a protective shell (3), wherein a plurality of soldering contacts (11) are arranged on one side of the top surface of the circuit board (1), the driver IC (9) is fixedly connected to the plurality of soldering contacts (11) by soldering, welding strips (6) are arranged on four sides of the top surface of the circuit board (1), the bottom end of the protective shell (3) is fixedly connected to the welding strips (6) by soldering, a first connector (8) is fixedly connected to the middle of the top surface of the circuit board (1), and a second connector (7) is fixedly connected to the other side of the top surface of the circuit board (1), and the outer walls of the first connector (8) and the second connector (7) are respectively provided with a first row of wires (2) and a second row of wires (4), and both of them pass through the protective shell (3) respectively.

2. A liquid crystal display driver IC according to claim 1, characterized in that: Four protrusions (10) are provided on one side of the circuit board (1) close to the top surface of the driver IC (9); the four protrusions (10) are all L-shaped in appearance, and are respectively slidably connected to the four corners of the driver IC (9).

3. A liquid crystal display driver IC according to claim 2, characterized in that: A metal cover plate (5) is provided on the top surface of the driver IC (9), and a gap is left between the top surface of the metal cover plate (5) and the top wall of the protective shell (3).

4. A liquid crystal display driver IC according to claim 3, characterized in that: Three thermal conductive pads (12) are respectively arranged on the top surface of the inner wall of the protective shell (3), and the three thermal conductive pads (12) are respectively located directly above the driver IC (9), the first connector (8) and the second connector (7).

5. A liquid crystal display driver IC according to claim 4, characterized in that: The side surfaces of the protective shell (3) close to the first row of cables (2) and the second row of cables (4) are provided with through grooves (13).

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