Device integrating built-in Zener, capacitor and driving IC and display screen

Abstract

The utility model relates to a built-in Zener, capacitor and driving IC integrated device and a display screen, the device comprises a substrate, the front surface of the substrate is provided with a display driving IC, a Zener, a capacitor and an RGB LED chip group which are electrically connected, and the display driving IC, the Zener, the capacitor, the RGB LED chip group and the substrate are packaged into a whole; a first connecting end connected with a VDD pin of the display driving IC, a second connecting end connected with a GND pin of the display driving IC, an input connecting end connected with an input pin of the display driving IC and an output connecting end connected with an output pin of the display driving IC are arranged at the position, close to the edge, of the back face of the substrate. According to the utility model, the miniaturization design of the device can be realized, and the installation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of LED devices, in particular to a device and a display screen with built-in Zener, capacitor and driver IC integrated into one. Background Art

[0002] With the development of science and technology, LED is widely used in lighting equipment or display screens. At present, in the application market of LED display screens, the driving circuit module of COB module is mainly composed of LED control circuit formed by IC driving components, etc. The LED control circuit formed by IC driving components is distributed on one side of the circuit board, and the rest of the circuit is distributed on the other side of the circuit board. The electrical connection on both sides is mainly connected through vias or pads, which makes the electronic circuits on the module circuit board very dense and complicated. The LED light-emitting chip and the driver IC chip are separately packaged, and the packaging cost is high. In addition, the external driver IC chip is easily affected by the external environment, and the reliability is poor. The weight of the formed product will also be large. During installation, a protective shell needs to be set at the bottom layer to protect the driver IC chip at the bottom layer to avoid exposing the driver IC chip and other components, which may affect their lifespan, thereby causing the equipment to be unreliable. In addition, in such a structure, there will be excessive loss of low-frequency signals, resulting in unstable display colors. Utility Model Content

[0003] In view of the existing deficiencies, the utility model provides a device and a display screen with a built-in Zener, a capacitor and a driving IC in one.

[0004] The utility model adopts the following technical solution to solve the technical problem: a device with a built-in Zener, a capacitor and a driver IC in one, comprising a substrate, on the front side of which an electrically connected display driver IC, a Zener, a capacitor and an RGB LED chipset are arranged, and the display driver IC, the Zener, the capacitor and the RGB LED chipset are packaged as one with the substrate; on the back side of the substrate, a first connection end connected to a VDD pin of the display driver IC, a second connection end connected to a GND pin of the display driver IC, an input connection end connected to an input pin of the display driver IC and an output connection end connected to an output pin of the display driver IC are arranged at a position adjacent to an edge.

[0005] Preferably, the first connection end and the second connection end are arranged diagonally on the back side of the substrate.

[0006] Preferably, the input connection end and the output connection end are each provided with one, and form four vertices of a quadrilateral with the first connection end and the second connection end.

[0007] Preferably, at least one third connection terminal is provided between the input connection terminal and the first connection terminal, and at least one fourth connection terminal is provided between the output connection terminal and the second connection terminal; the third connection terminal and the first connection terminal are connected in parallel to the VDD pin of the display driver IC, and the fourth connection terminal and the second connection terminal are connected in parallel to the GND pin of the display driver IC.

[0008] Preferably, the capacitor and the Zener are connected in parallel between the VDD pin and the GND pin of the display driver IC.

[0009] Preferably, the RGB LED chipset comprises a red LED chip, a green LED chip and a blue LED chip, and the red LED chip, the green LED chip and the blue LED chip are connected in parallel to a display driver IC.

[0010] Preferably, the surface of the Zener and / or capacitor is coated with a white reflective adhesive layer.

[0011] Preferably, a groove for mounting capacitors and Zener is formed on the front side of the substrate.

[0012] A display screen adopts a device as described above that integrates a built-in Zener, a capacitor and a driver IC.

[0013] The beneficial effect of the utility model is that the utility model packages the Zener, capacitor, driver IC chip and RGB LED chipset into an integrated structure on the same surface of the substrate, and sets connection terminals on the other surface, so as to form a structure in which all electronic components are built-in. During installation, no additional protective shell is needed to protect the electronic components, so the installation is convenient. At the same time, such a structure simplifies the electrical connection structure between the electronic components on the device, thus reducing the weight of the device and realizing the miniaturization of the device. During use, the electronic components are no longer affected by the external environment, so the reliability is improved, and the performance of the product is improved while reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the front side of the first embodiment of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the back side of the first embodiment of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the back side of the second embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of multiple devices connected in the first embodiment of the utility model;

[0018] Component names and serial numbers in the figure: 1-substrate 10-first connection end 11-second connection end 12-input connection end 13-output connection end 14-third connection end 15-fourth connection end 2-display driver IC 3-Zener 4-capacitor 5-RGB LED chipset 50-red LED chip 51-green LED chip 52-blue LED chip. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the embodiments, and a clear and complete description will be given. It should be understood that these embodiments are used to illustrate the present invention and are not limited to the scope of the present invention. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of the specific manufacturer, and the unspecified implementation conditions are usually the conditions in the conventional experiments. In addition, the directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", etc., are only referenced to the directions of the attached diagrams. The directional terms used are for better and clearer explanation and understanding of the present invention, rather than indicating or implying the orientation that the present invention must have, and therefore cannot be understood as limitations on the present invention.

[0020] The utility model is implemented as follows Figures 1 to 4As shown in the figure, a device with built-in Zener, capacitor and driver IC in one body comprises a substrate 1, on the front side of the substrate 1 are arranged display driver IC 2, Zener 3, capacitor 4 and RGB LED chipset 5 which are electrically connected, the display driver IC 2, Zener 3, capacitor 4 and RGB LED chipset 5 are packaged into one body with the substrate 1, the Zener 3, capacitor 4 and display driver IC 2 and RGB LED chipset 5 are arranged on the same side of the substrate after solid crystal, baking and wire welding, and then packaged into an integrated structure with the substrate by molding, so as to form an LED device with built-in electronic components, when forming a display screen for installation, no additional protective shell is required to protect the back side thereof, the Zener 3 is a Zener diode, which can withstand a higher voltage in a reverse bias state, and allow a large amount of current to flow in the reverse direction when a specific reverse voltage (Zener voltage) is reached to keep the voltage passing through the chip in a stable state, and also increase the antistatic ability of the device, and the capacitor 4 is a chip capacitor, and the capacitor 4 can realize functions such as oscillation, filtering, phase shift, bypass, coupling, etc., and can realize stable display, at this time RGB The LED chipset 5 comprises a red LED chip 50, a green LED chip 51 and a blue LED chip 52, and the red LED chip 50, the green LED chip 51 and the blue LED chip 52 are connected in parallel to the display driver IC 2, that is, the red LED chip 50, the green LED chip 51 and the blue LED chip 52 are connected in parallel between the VDD pin and the GND pin of the display driver IC 2, and the capacitor 4 and the Zener 3 are also connected in parallel between the VDD pin and the GND pin of the display driver IC 2; the back side of the substrate 1 is provided with a first connection terminal 10 connected to the VDD pin of the display driver IC 2, a second connection terminal 11 connected to the GND pin of the display driver IC 2, an input connection terminal 12 connected to the input pin of the display driver IC 2 and a capacitor 4 and a Zener 3 connected in parallel between the VDD pin and the GND pin of the display driver IC 2 at a position adjacent to the edge. 2, the first connection terminal 10 constitutes the VDD terminal of the device, the second connection terminal 11 constitutes the GND terminal of the device, the input connection terminal 12 constitutes the D1 terminal of the device input, and the output connection terminal 13 constitutes the D0 terminal of the device output. Figure 4As shown in , during production, the D0 end of one device can be connected to the D1 end of another device, and multiple devices can be connected in sequence to form a long strip display device group for display. At the same time, the VDD ends of multiple devices in the long strip display device group are electrically connected together, and the GND ends of multiple devices are also electrically connected together. When in use, the long strip display device group can be cut according to the required length. The substrate 1 is a square structure, and the first connection end 10 and the second connection end 11 are diagonally arranged on the back of the substrate 1. The input connection end 12 and the output connection end 13 are each provided with one and form the four vertices of a quadrilateral with the first connection end 10 and the second connection end 11. The four connection ends are located at the four corners of the substrate 1, which facilitates the connection between devices.

[0021] Further improvements, such as Figure 3 As shown in the figure, at least one third connection terminal 14 is further provided between the input connection terminal 12 and the first connection terminal 10, and at least one fourth connection terminal 15 is further provided between the output connection terminal 13 and the second connection terminal 11; the third connection terminal 14 and the first connection terminal 10 are connected in parallel to the VDD pin of the display driver IC 2, and the fourth connection terminal 15 and the second connection terminal 11 are connected in parallel to the GND pin of the display driver IC 2, the third connection terminal 14 constitutes the input D2 terminal of the device, and the fourth connection terminal 15 constitutes the output D0′ terminal of the device. When the two devices are connected, the D1 terminal and the D2 terminal of the second device are connected to the D0 terminal of the first device, and the D1 terminal and the D2 terminal of the second device are connected to the D0′ terminal of the first device. In this way, when there is a problem in the connection between two terminals of the two devices, the normal operation of the devices can be ensured by conducting other connections.

[0022] As a further improvement, the surface of the Zener 3 and / or capacitor 4 is wrapped with a white reflective adhesive layer (not shown in the figure), and the white reflective adhesive layer covers the Zener diode and capacitor 4, so that a reflective layer with high reflectivity can be formed on the surface of the Zener 3 and capacitor 4, which can effectively reduce the absorption of the light emitted by the RGB LED chipset 5 by the Zener diode and capacitor 4, increase the light output, and improve the light output efficiency. At this time, a groove (not shown in the figure) for installing the capacitor 4 and the Zener 3 is concave on the front of the substrate 1, and the capacitor 4 and the Zener 3 are installed in the groove, and then covered with white reflective adhesive to form a white reflective adhesive layer, so that the plane where the capacitor 4 and the Zener 3 are located is lower than the plane where the RGB LED chipset 5 is located, avoiding the blocking and absorption of light, thereby increasing the luminous brightness and reducing energy consumption.

[0023] A display screen adopts a device with built-in Zener, capacitor and driver IC as described above, and assembles the above multiple devices into an LED display screen of a certain size. The number of devices is selected according to the size of the display screen.

[0024] Although the utility model has been described in detail above with general descriptions and specific implementation schemes, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A device with a built-in Zener, capacitor and driver IC, characterized in that: The invention comprises a substrate, wherein a display driver IC, a Zener, a capacitor and an RGB LED chipset which are electrically connected are arranged on the front side of the substrate, and the display driver IC, the Zener, the capacitor and the RGB LED chipset are packaged as one body with the substrate; and a first connection terminal connected to a VDD pin of the display driver IC, a second connection terminal connected to a GND pin of the display driver IC, an input connection terminal connected to an input pin of the display driver IC and an output connection terminal connected to an output pin of the display driver IC are arranged on the back side of the substrate at a position adjacent to an edge.

2. The device according to claim 1, wherein the device has a built-in Zener, a capacitor and a driver IC, characterized in that The first connection end and the second connection end are arranged diagonally on the back side of the substrate.

3. The device with built-in Zener, capacitor and driver IC as claimed in claim 2, characterized in that The input connection end and the output connection end are each provided with one and form four vertices of a quadrilateral with the first connection end and the second connection end.

4. The device with built-in Zener, capacitor and driver IC as claimed in claim 3, characterized in that : At least one third connection terminal is also arranged between the input connection terminal and the first connection terminal, and at least one fourth connection terminal is also arranged between the output connection terminal and the second connection terminal; the third connection terminal and the first connection terminal are connected in parallel to the VDD pin of the display driver IC, and the fourth connection terminal and the second connection terminal are connected in parallel to the GND pin of the display driver IC.

5. The device according to claim 1, wherein the device has a built-in Zener, a capacitor and a driver IC, characterized in that : The capacitor and Zener are connected in parallel between the VDD pin and the GND pin of the display driver IC.

6. The device with built-in Zener, capacitor and driver IC as claimed in claim 1, characterized in that :The RGBLED chipset includes a red LED chip, a green LED chip and a blue LED chip, and the red LED chip, the green LED chip and the blue LED chip are connected in parallel on a display driver IC.

7. The device with built-in Zener, capacitor and driver IC as claimed in claim 1, characterized in that The surface of the Zener and / or capacitor is coated with a white reflective adhesive layer.

8. The device with built-in Zener, capacitor and driver IC as claimed in claim 7, characterized in that The front side of the substrate is provided with a recessed groove for mounting capacitors and Zener.

9. A display screen, characterized in that: A device integrating a built-in Zener, a capacitor and a driver IC as described in any one of claims 1 to 8 is used.

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