LED display device and LED display module

Abstract

The utility model discloses an LED display device and an LED display module, wherein the LED display device includes a metal circuit layer, a driver IC chip, a plurality of LED light-emitting chips, and a plurality of pins; the driver IC chip includes a plurality of pins, which are connected to the plurality of pins; the LED light-emitting chip includes three LED light-emitting chips, which are arranged in a triangle shape and surround the driver IC chip; any one of the LED light-emitting chips includes a first electrode and a second electrode, which are connected to the plurality of pins, and the second electrode of the LED light-emitting chip is connected to the plurality of pins and the plurality of pins. The LED display device provided by the utility model has a built-in driver IC chip, and is provided with LED light-emitting chips arranged in a triangle shape, which surround the driver IC chip, and can be applied to the reuse of an LED display module provided with a plurality of LED display devices, so as to improve the display effect and effectively reduce the cost.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display devices, in particular to an LED display device and an LED display module. Background Art

[0002] At present, the LED display devices with the largest share on the market use external driver IC chips to realize electrical display. Such devices often have problems such as complex structure, insufficient stability, and cumbersome manufacturing process. Therefore, an integrated circuit chip is added inside the device to control the electrical display of the corresponding device, that is, LED display devices with built-in driver IC chips came into being. However, the current LED display devices with built-in driver IC chips only control a single display device. In a module with multiple devices, there is no reuse between devices, resulting in poor display effects. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art. The utility model provides an LED display device and an LED display module, which has a built-in driver IC chip and is provided with LED light-emitting chips arranged in a triangular shape, surrounding the driver IC chip. The LED display module can be applied to multiplexing of LED display modules provided with multiple LED display devices, thereby improving display effects and effectively reducing costs.

[0004] The utility model provides an LED display device, which comprises a metal circuit layer, a driver IC chip, a plurality of LED light-emitting chips, and a plurality of pins, wherein the driver IC chip, the plurality of LED light-emitting chips, and the plurality of pins are arranged on the metal circuit layer;

[0005] The driver IC chip includes a plurality of pins, and the plurality of pins are correspondingly connected to the plurality of pins;

[0006] The plurality of LED light-emitting chips include a first LED light-emitting chip, a second LED light-emitting chip, and a third LED light-emitting chip, wherein the first LED light-emitting chip, the second LED light-emitting chip, and the third LED light-emitting chip are arranged in a triangle shape, surrounding the driver IC chip;

[0007] Any LED light-emitting chip includes a first electrode and a second electrode. The first electrode of the LED light-emitting chip is connected to the plurality of pins correspondingly, and the second electrode of the LED light-emitting chip is connected to the plurality of pins and the plurality of leads correspondingly.

[0008] Furthermore, the LED display device includes a power pin, a control signal input pin, a control signal output pin, and a ground pin;

[0009] The driver IC chip includes a power pin, a control signal input pin, a control signal output pin, a ground pin, a first LED light-emitting chip control pin, a second LED light-emitting chip control pin, and a third LED light-emitting chip control pin;

[0010] The power pin is connected to the power pin, the control signal input pin is connected to the control signal input pin, the control signal output pin is connected to the control signal output pin, the ground pin is connected to the ground pin, the first electrode of the first LED light-emitting chip is connected to the first LED light-emitting chip control pin, the first electrode of the second LED light-emitting chip is connected to the second LED light-emitting chip control pin, the first electrode of the third LED light-emitting chip is connected to the third LED light-emitting chip control pin, the second electrode of the first LED light-emitting chip, the second electrode of the second LED light-emitting chip, and the second electrode of the third LED light-emitting chip are respectively connected to the power pin and the power pin.

[0011] Further, the LED display device includes a power pin, a control signal pin, a first LED light-emitting chip power pin, a second LED light-emitting chip power pin, a third LED light-emitting chip power pin, and a ground pin;

[0012] The driver IC chip includes a power pin, a control signal pin, a ground pin, a first LED light-emitting chip control pin, a second LED light-emitting chip control pin, and a third LED light-emitting chip control pin;

[0013] The power pin is connected to the power pin, the control signal pin is connected to the control signal pin, the ground pin is connected to the ground pin, the first electrode of the first LED light-emitting chip is connected to the control pin of the first LED light-emitting chip, the first electrode of the second LED light-emitting chip is connected to the control pin of the second LED light-emitting chip, the first electrode of the third LED light-emitting chip is connected to the control pin of the third LED light-emitting chip, the second electrode of the first LED light-emitting chip is connected to the power connection pin of the first LED light-emitting chip, the second electrode of the second LED light-emitting chip is connected to the power connection pin of the second LED light-emitting chip, and the second electrode of the third LED light-emitting chip is connected to the power connection pin of the third LED light-emitting chip.

[0014] Further, the LED display device includes a power pin, a first control signal input pin, a second control signal input pin, a first control signal output pin, a second control signal output pin, and a ground pin;

[0015] The driver IC chip includes a power pin, a first control signal input pin, a second control signal input pin, a first control signal output pin, a second control signal output pin, a ground pin, a first LED light-emitting chip control pin, a second LED light-emitting chip control pin, and a third LED light-emitting chip control pin;

[0016] The power pin is connected to the power pin, the first control signal input pin is connected to the first control signal input pin, the second control signal input pin is connected to the second control signal input pin, the first control signal output pin is connected to the first control signal output pin, the second control signal output pin is connected to the second control signal output pin, the ground pin is connected to the ground pin, the first electrode of the first LED light-emitting chip is connected to the first LED light-emitting chip control pin, the first electrode of the second LED light-emitting chip is connected to the second LED light-emitting chip control pin, the first electrode of the third LED light-emitting chip is connected to the third LED light-emitting chip control pin, the second electrode of the first LED light-emitting chip, the second electrode of the second LED light-emitting chip, and the second electrode of the third LED light-emitting chip are respectively connected to the power pin and the power pin

[0017] Furthermore, the upper surface area of ​​the metal circuit layer is larger than the lower surface area.

[0018] Furthermore, the LED display device also includes a circuit substrate, and the metal circuit layer is arranged on the circuit substrate.

[0019] Furthermore, the LED display device also includes a bracket, which is arranged around the driver IC chip and the plurality of LED light-emitting chips.

[0020] Furthermore, the driver IC chip is a face-up chip or a flip-chip;

[0021] The LED light emitting chip is a face-up chip or a flip-up chip.

[0022] The utility model also provides an LED display module, which includes a controller and a plurality of the above-mentioned LED display devices, wherein the plurality of LED display devices are arranged in an array of m rows and n columns.

[0023] Furthermore, a power pin of any LED display device is connected to a power terminal of the controller, and a ground pin of any LED display device is connected to a ground terminal of the controller.

[0024] Further, the control signal input pin of the LED display device in the first row and the first column is connected to the control signal end of the controller, the control signal output pin of the LED display device in the first row and the first column is connected to the control signal input pin of the LED display device in the first row and the second column, and the control signal output pin of the LED display device in the first row and the second column is connected to the control signal input pin of the LED display device in the first row and the third column;

[0025] The control signal output pin of the LED display device in the first row and the n-2 column is connected to the control signal input pin of the LED display device in the first row and the n-1 column, and the control signal output pin of the LED display device in the first row and the n-1 column is connected to the control signal input pin of the LED display device in the first row and the n-2 column;

[0026] The control signal output pin of the LED display device in the mth row and the n-1th column is connected to the control signal input pin of the LED display device in the mth row and the nth column;

[0027] Wherein m is a positive integer, n is a positive integer, and n>2.

[0028] Further, the first control signal input pin of the LED display device in the first row and the first column is connected to the first control signal input end of the controller, the second control signal input pin of the LED display device in the first row and the first column is connected to the second control signal input end of the controller, the second control signal input pin of the LED display device in the first row and the second column is connected to the third control signal input end of the controller, the first control signal output pin of the LED display device in the first row and the first column is connected to the first control signal input pin of the LED display device in the first row and the second column, the second control signal output pin of the LED display device in the first row and the first column is connected to the second control signal input pin of the LED display device in the first row and the third column, the first control signal output pin of the LED display device in the first row and the second column is connected to the second control signal input pin of the LED display device in the first row and the fourth column;

[0029] The first control signal output pin of the LED display device in the first row and the n-2 column is connected to the first control signal input pin of the LED display device in the first row and the n-1 column, and the second control signal output pin of the LED display device in the first row and the n-1 column is connected to the second control signal input pin of the LED display device in the first row and the n-2 column;

[0030] The first control signal output pin of the LED display device in the mth row and n-2th column is connected to the first control signal input pin of the LED display device in the mth row and n-1th column, and the second control signal output pin of the LED display device in the mth row and n-1th column is connected to the second control signal input pin of the LED display device in the mth row and nth column;

[0031] Wherein m is a positive integer, n is a positive integer, and n>2.

[0032] Further, the first control signal input pin of the LED display device in the first row and first column is connected to the first control signal input terminal of the controller, the second control signal input pin of the LED display device in the first row and first column is connected to the second control signal input terminal of the controller, the first control signal output pin of the LED display device in the first row and first column is connected to the first control signal input pin of the LED display device in the first row and second column, and the second control signal output pin of the LED display device in the first row and first column is connected to the second control signal input pin of the LED display device in the first row and second column;

[0033] The first control signal output pin of the LED display device in the first row and the n-1 column is connected to the first control signal input pin of the LED display device in the first row and the n column, and the second control signal output pin of the LED display device in the first row and the n-1 column is connected to the second control signal input pin of the LED display device in the first row and the n column;

[0034] The first control signal output pin of the LED display device in the mth row and n-1th column is connected to the first control signal input pin of the LED display device in the mth row and nth column, and the second control signal output pin of the LED display device in the mth row and n-1th column is connected to the second control signal input pin of the LED display device in the mth row and nth column;

[0035] Wherein m is a positive integer, n is a positive integer, and n>2.

[0036] Further, the first control signal input pin of the LED display device in the first row and the first column is connected to the first control signal input terminal of the controller, the second control signal input pin of the LED display device in the first row and the second column is connected to the first control signal input terminal of the controller, the second control signal input pin of the LED display device in the first row and the first column is connected to the second control signal input terminal of the controller, and the first control signal output pin of the LED display device in the first row and the first column is connected to the first control signal input pin of the LED display device in the first row and the second column and the second control signal input and output pin of the LED display device in the first row and the third column;

[0037] The first control signal output pin of the LED display device in the first row and the n-2 column is connected to the first control signal input pin of the LED display device in the first row and the n-1 column and the second control signal input pin of the LED display device in the first row and the n-2 column;

[0038] The first control signal output pin of the LED display device in the mth row and n-2nd column is connected to the first control signal input pin of the LED display device in the mth row and n-1st column and the second control signal input and output pin of the LED display device in the mth row and nth column;

[0039] Wherein m is a positive integer, n is a positive integer, and n>2.

[0040] Furthermore, the first LED light-emitting chip power pin, the second LED light-emitting chip power pin, and the third LED light-emitting chip power pin of any LED display device are connected to the power supply end of the controller, and the control signal pin of any LED display device is connected to the control signal end of the controller.

[0041] The utility model provides an LED display device and an LED display module. The LED display device is provided with LED light-emitting chips arranged in a triangle shape, surrounding a driving IC chip, and can be applied to the reuse of an LED display module provided with multiple LED display devices, thereby enlarging the pixel point spacing, improving the display effect, and effectively reducing the cost; a substrate-free structure is provided, so that the overall thickness of the display device is reduced, which is conducive to the development of the ultra-thin trend; a special-shaped structure in which the upper surface area of ​​the metal circuit layer is larger than the lower surface area is provided, so that the air tightness of the display device is improved, thereby improving the reliability of the display device; the LED display module is provided with a variety of connection methods, adapted to different display devices and different application scenarios, with stronger applicability and better display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 This is a front view of the structure of the LED display device in the first embodiment of the present utility model;

[0044] Figure 2 This is a schematic diagram of the back side of the structure of the LED display device in the first embodiment of the utility model;

[0045] Figure 3This is a front view of the structure of the LED display device in the second embodiment of the present utility model;

[0046] Figure 4 It is a schematic diagram of the back structure of the LED display device in the second embodiment of the present utility model;

[0047] Figure 5 It is a schematic diagram of the structure of the LED display device in the third embodiment of the present utility model;

[0048] Figure 6 This is a schematic side view of the structure of the LED display device in the third embodiment of the present utility model;

[0049] Figure 7 It is a schematic diagram of the structure of the LED display device in the fourth embodiment of the present utility model;

[0050] Figure 8 It is a schematic side view of the structure of the LED display device in the fourth embodiment of the present utility model;

[0051] Fig. 9 It is a structural schematic diagram of the LED display device in the fifth embodiment of the present utility model;

[0052] Fig.10 This is a schematic diagram of the structure of the LED display module in the sixth embodiment of the present utility model;

[0053] Fig.11 This is a schematic diagram of the structure of the LED display module in the seventh embodiment of the present utility model;

[0054] Fig.12 This is a schematic diagram of the connection of the LED display module in the eighth embodiment of the present utility model;

[0055] Fig.13 This is a schematic diagram of the connection of the LED display module in the ninth embodiment of the present utility model;

[0056] Fig.14 This is a schematic diagram of the connection of the LED display module in the tenth embodiment of the present utility model;

[0057] Fig.15 This is a schematic diagram of the connection of the LED display module in the eleventh embodiment of the present utility model;

[0058] Fig.16 This is a schematic diagram of the connection of the LED display module in the twelfth embodiment of the present utility model. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0060] Embodiment 1

[0061] The utility model provides a LED display device, such as Figure 1 and Figure 2 As shown, Figure 1 The front view of the structure of the LED display device in the first embodiment of the utility model is shown. Figure 2 A schematic diagram of the back side of the structure of the LED display device in the first embodiment of the utility model is shown. The LED display device includes a metal circuit layer 14, a circuit substrate 15, a driver IC chip 11, three LED light-emitting chips, and four pins. The driver IC chip 11, three LED light-emitting chips, and four pins are arranged on the metal circuit layer 14, and the metal circuit layer 14 is arranged on the circuit substrate 15.

[0062] In an optional implementation of the present embodiment, the circuit substrate 15 includes a first surface and a second surface, the first surface and the second surface are arranged opposite to each other, the driver IC chip 11 and the three LED light-emitting chips are arranged on the first surface of the circuit substrate 15, and the four pins are arranged on the second surface of the circuit substrate 15.

[0063] In an optional implementation of the present embodiment, the driver IC chip 11 includes seven pins, namely a first LED light-emitting chip control pin 111, a second LED light-emitting chip control pin 112, a third LED light-emitting chip control pin 113, a power pin 114, a control signal input pin 115, a control signal output pin 116, and a ground pin 117.

[0064] In an optional implementation of the present embodiment, the three LED light-emitting chips include a first LED light-emitting chip 121, a second LED light-emitting chip 122, and a third LED light-emitting chip 123. The first LED light-emitting chip 121, the second LED light-emitting chip 122, and the third LED light-emitting chip 123 are arranged in a triangular shape, surrounding the driver IC chip 11.

[0065] Specifically, the first LED light emitting chip 121 , the second LED light emitting chip 122 , and the third LED light emitting chip 123 are arranged in an equilateral triangle.

[0066] In an optional implementation of this embodiment, the first LED light emitting chip 121 is a red LED light emitting chip, the second LED light emitting chip 122 is a green LED light emitting chip, and the third LED light emitting chip 123 is a blue LED light emitting chip.

[0067] Furthermore, the first LED light emitting chip 121, the second LED light emitting chip 122, and the third LED light emitting chip 123 are respectively one red light chip, one green light chip, and one blue light chip.

[0068] In an optional implementation of this embodiment, any LED light-emitting chip includes a first electrode and a second electrode.

[0069] Specifically, the first electrode of the first LED light-emitting chip 121 is connected to the first LED light-emitting chip control pin 111, the first electrode of the second LED light-emitting chip 122 is connected to the second LED light-emitting chip control pin 112, and the first electrode of the third LED light-emitting chip 123 is connected to the third LED light-emitting chip control pin 113.

[0070] Furthermore, the second electrode of the first LED light emitting chip 121 , the second electrode of the second LED light emitting chip 122 , and the second electrode of the third LED light emitting chip 123 are connected in parallel to each other and are connected to the power pin 114 .

[0071] In an optional implementation of the present embodiment, the four pins include a power pin 131, a control signal input pin 132, a control signal output pin 133, and a ground pin 134, wherein the power pin 131 is connected to the power pin 114, the control signal input pin 132 is connected to the control signal input pin 115, the control signal output pin 133 is connected to the control signal output pin 116, and the ground pin 134 is connected to the ground pin 117.

[0072] In an optional implementation of this embodiment, the driver IC chip 11 , the first LED light emitting chip 121 , the second LED light emitting chip 122 , and the third LED light emitting chip 123 are all flip chips.

[0073] A built-in driver IC chip is provided here, and LED light-emitting chips are arranged in a triangular shape, which can be applied to the reuse of an LED display module provided with multiple LED display devices, amplifying the pixel pitch, improving the display effect, and effectively reducing the cost.

[0074] In summary, the first embodiment of the utility model provides an LED display device with a built-in driver IC chip and LED light-emitting chips arranged in a triangular shape. It can be applied to the reuse of an LED display module with multiple LED display devices, thereby enlarging the pixel pitch, improving the display effect, and effectively reducing the cost.

[0075] Embodiment 2

[0076] The second embodiment of the present utility model provides an LED display device, such as Figure 3 and Figure 4 As shown, Figure 3 The front view of the structure of the LED display device in the second embodiment of the present utility model is shown. Figure 4 A schematic diagram of the back side of the structure of the LED display device in the second embodiment of the utility model is shown, and the LED display device includes a metal circuit layer 24, a circuit substrate 25, a driver IC chip 21, three LED light-emitting chips, and six pins. The driver IC chip 21, three LED light-emitting chips, and six pins are arranged on the metal circuit layer 24, and the metal circuit layer 24 is arranged on the circuit substrate 25.

[0077] In an optional implementation of the present embodiment, the circuit substrate 25 includes a first surface and a second surface, the first surface and the second surface are arranged opposite to each other, the driver IC chip 21 and the three LED light-emitting chips are arranged on the first surface of the circuit substrate 25, and the six pins are arranged on the second surface of the circuit substrate 25.

[0078] In an optional implementation of the present embodiment, the driver IC chip 21 includes nine pins, namely a first LED light-emitting chip control pin 211, a second LED light-emitting chip control pin 212, a third LED light-emitting chip control pin 213, a power pin 214, a first control signal input pin 215, a first control signal output pin 216, a second control signal input pin 217, a second control signal output pin 218, and a ground pin 219.

[0079] In an optional implementation of the present embodiment, the three LED light-emitting chips include a first LED light-emitting chip 221, a second LED light-emitting chip 222, and a third LED light-emitting chip 223. The first LED light-emitting chip 221, the second LED light-emitting chip 222, and the third LED light-emitting chip 223 are arranged in a triangular shape, surrounding the driver IC chip 21.

[0080] Specifically, the first LED light emitting chip 221 , the second LED light emitting chip 222 , and the third LED light emitting chip 223 are arranged in an equilateral triangle.

[0081] In an optional implementation of this embodiment, the first LED light emitting chip 221 is a red LED light emitting chip, the second LED light emitting chip 222 is a green LED light emitting chip, and the third LED light emitting chip 223 is a blue LED light emitting chip.

[0082] Furthermore, the first LED light emitting chip 221, the second LED light emitting chip 222, and the third LED light emitting chip 223 are respectively one red light chip, one green light chip, and one blue light chip.

[0083] In an optional implementation of this embodiment, any LED light-emitting chip includes a first electrode and a second electrode.

[0084] Specifically, the first electrode of the first LED light-emitting chip 221 is connected to the first LED light-emitting chip control pin 211, the first electrode of the second LED light-emitting chip 222 is connected to the second LED light-emitting chip control pin 212, and the first electrode of the third LED light-emitting chip 223 is connected to the third LED light-emitting chip control pin 213.

[0085] Furthermore, the second electrode of the first LED light emitting chip 221 , the second electrode of the second LED light emitting chip 222 , and the second electrode of the third LED light emitting chip 223 are connected in parallel to each other and are connected to the power pin 214 .

[0086] In an optional implementation of the present embodiment, the six pins include a power pin 231, a first control signal input pin 232, a first control signal output pin 233, a second control signal input pin 234, a second control signal output pin 235, and a ground pin 236, wherein the power pin 231 is connected to the power pin 214, the first control signal input pin 232 is connected to the first control signal input pin 215, the first control signal output pin 233 is connected to the first control signal output pin 216, the second control signal input pin 234 is connected to the second control signal input pin 217, the second control signal output pin 235 is connected to the second control signal output pin 218, and the ground pin 236 is connected to the ground pin 219.

[0087] In an optional implementation of this embodiment, the driver IC chip 21 , the first LED light emitting chip 221 , the second LED light emitting chip 222 , and the third LED light emitting chip 223 are all flip chips.

[0088] A built-in driver IC chip is provided here, and LED light-emitting chips are arranged in a triangular shape, which can be applied to the reuse of an LED display module provided with multiple LED display devices, amplifying the pixel pitch, improving the display effect, and effectively reducing the cost.

[0089] In summary, the second embodiment of the utility model provides an LED display device with a built-in driver IC chip and LED light-emitting chips arranged in a triangular shape. It can be applied to the reuse of an LED display module with multiple LED display devices, thereby enlarging the pixel pitch, improving the display effect, and effectively reducing costs.

[0090] Embodiment 3

[0091] The third embodiment of the present utility model provides an LED display device, such as Figure 5 As shown, Figure 5 A schematic structural diagram of an LED display device in Embodiment 3 of the present invention is shown, wherein the LED display device comprises a metal circuit layer 34 , a driver IC chip 31 , three LED light-emitting chips, and four pins, wherein the driver IC chip 31 , three LED light-emitting chips, and four pins are arranged on the metal circuit layer 34 .

[0092] In an optional implementation of the present embodiment, the driver IC chip 31 includes seven pins, namely a first LED light-emitting chip control pin 311, a second LED light-emitting chip control pin 312, a third LED light-emitting chip control pin 313, a power pin 314, a control signal input pin 315, a control signal output pin 316, and a ground pin 317.

[0093] In an optional implementation of the present embodiment, the three LED light-emitting chips include a first LED light-emitting chip 321, a second LED light-emitting chip 322, and a third LED light-emitting chip 323. The first LED light-emitting chip 321, the second LED light-emitting chip 322, and the third LED light-emitting chip 323 are arranged in a triangular shape, surrounding the driver IC chip 31.

[0094] Specifically, the first LED light emitting chip 321 , the second LED light emitting chip 322 , and the third LED light emitting chip 323 are arranged in an equilateral triangle.

[0095] In an optional implementation of this embodiment, the first LED light emitting chip 321 is a red LED light emitting chip, the second LED light emitting chip 322 is a green LED light emitting chip, and the third LED light emitting chip 323 is a blue LED light emitting chip.

[0096] Furthermore, the first LED light emitting chip 321 , the second LED light emitting chip 322 , and the third LED light emitting chip 323 are respectively one red light chip, one green light chip, and one blue light chip.

[0097] In an optional implementation of this embodiment, any LED light-emitting chip includes a first electrode and a second electrode.

[0098] Specifically, the first electrode of the first LED light-emitting chip 321 is connected to the first LED light-emitting chip control pin 311, the first electrode of the second LED light-emitting chip 322 is connected to the second LED light-emitting chip control pin 312, and the first electrode of the third LED light-emitting chip 323 is connected to the third LED light-emitting chip control pin 313.

[0099] Furthermore, the second electrode of the first LED light emitting chip 321 , the second electrode of the second LED light emitting chip 322 , and the second electrode of the third LED light emitting chip 323 are connected in parallel to each other and are connected to the power pin 314 .

[0100] In an optional implementation of this embodiment, the four pins include a power pin 331, a control signal input pin 332, a control signal output pin 333, and a ground pin 334, wherein the power pin 331 is connected to the power pin 314, the control signal input pin 332 is connected to the control signal input pin 315, the control signal output pin 333 is connected to the control signal output pin 316, and the ground pin 334 is connected to the ground pin 317.

[0101] In an optional implementation of this embodiment, the driver IC chip 31 , the first LED light emitting chip 321 , the second LED light emitting chip 322 , and the third LED light emitting chip 323 are all flip chips.

[0102] A built-in driver IC chip is provided here, and LED light-emitting chips are arranged in a triangular shape, which can be applied to the reuse of an LED display module provided with multiple LED display devices, amplifying the pixel pitch, improving the display effect, and effectively reducing the cost.

[0103] In an optional implementation of this embodiment, the upper surface area of ​​the metal wiring layer 34 is larger than the lower surface area.

[0104] Specifically, Figure 6 As shown, Figure 6 The figure shows a schematic side view of the structure of the LED display device in the third embodiment of the present utility model. Figure 6Schematic diagrams of the structures of various types of LED display devices are given in FIG. 3 . The upper surface area of ​​the metal circuit layer 34 is larger than the lower surface area, and the upper surface covers the lower surface. The shape of the metal circuit layer 34 is not limited.

[0105] Here, a special-shaped structure is set on the side of the device to increase the airtightness of the device and improve the reliability of the device.

[0106] In summary, the third embodiment of the utility model provides an LED display device with a built-in driver IC chip and a P-shaped LED light-emitting chip, which can be applied to the reuse of an LED display module provided with multiple LED display devices, amplifying the pixel pitch, improving the display effect, and effectively reducing the cost; a substrate-free structure is provided, so that the overall thickness of the display device is reduced, which is conducive to the development of ultra-thinness; a special-shaped structure in which the upper surface area of ​​the metal circuit layer is larger than the lower surface area is provided, so as to improve the airtightness of the display device and thereby improve the reliability of the display device.

[0107] Embodiment 4

[0108] The fourth embodiment of the present utility model provides an LED display device, such as Figure 7 As shown, Figure 7 A structural schematic diagram of an LED display device in a fourth embodiment of the utility model is shown, wherein the LED display device comprises a metal circuit layer 44, a driver IC chip 41, three LED light-emitting chips, and six pins, wherein the driver IC chip 41, three LED light-emitting chips, and six pins are arranged on the metal circuit layer 44.

[0109] In an optional implementation of this embodiment, the driver IC chip 41 includes six pins, namely a first LED light-emitting chip control pin 411, a second LED light-emitting chip control pin 412, a third LED light-emitting chip control pin 413, a power pin 414, a control signal pin 415, and a ground pin 416.

[0110] In an optional implementation of the present embodiment, the three LED light-emitting chips include a first LED light-emitting chip 421, a second LED light-emitting chip 422, and a third LED light-emitting chip 423. The first LED light-emitting chip 421, the second LED light-emitting chip 422, and the third LED light-emitting chip 423 are arranged in a triangular shape, surrounding the driver IC chip 41.

[0111] Specifically, the first LED light emitting chip 421 , the second LED light emitting chip 422 , and the third LED light emitting chip 423 are arranged in an equilateral triangle.

[0112] In an optional implementation of this embodiment, the first LED light emitting chip 421 is a red LED light emitting chip, the second LED light emitting chip 422 is a green LED light emitting chip, and the third LED light emitting chip 423 is a blue LED light emitting chip.

[0113] Furthermore, here, the first LED light emitting chip 421, the second LED light emitting chip 422, and the third LED light emitting chip 423 are respectively one red light chip, one green light chip, and one blue light chip.

[0114] In an optional implementation of this embodiment, any LED light-emitting chip includes a first electrode and a second electrode.

[0115] Specifically, the first electrode of the first LED light-emitting chip 421 is connected to the first LED light-emitting chip control pin 411, the first electrode of the second LED light-emitting chip 422 is connected to the second LED light-emitting chip control pin 412, and the first electrode of the third LED light-emitting chip 423 is connected to the third LED light-emitting chip control pin 413.

[0116] In an optional implementation of the present embodiment, the six pins include a first LED light-emitting chip power connection pin 431, a second LED light-emitting chip power connection pin 432, a third LED light-emitting chip power connection pin 433, a power pin 434, a control signal pin 435, and a ground pin 436, wherein the power pin 434 is connected to the power pin 414, the control signal pin 435 is connected to the control signal pin 415, and the ground pin 436 is connected to the ground pin 416.

[0117] In an optional implementation of the present embodiment, the second electrode of the first LED light-emitting chip 421 is connected to the first LED light-emitting chip power pin 431, the second electrode of the second LED light-emitting chip 422 is connected to the second LED light-emitting chip power pin 432, and the second electrode of the third LED light-emitting chip 423 is connected to the third LED light-emitting chip power pin 433.

[0118] In an optional implementation of this embodiment, the driver IC chip 41 , the first LED light emitting chip 421 , the second LED light emitting chip 422 , and the third LED light emitting chip 423 are all flip chips.

[0119] A built-in driver IC chip is provided here, and LED light-emitting chips are arranged in a triangular shape, which can be applied to the reuse of an LED display module provided with multiple LED display devices, amplifying the pixel pitch, improving the display effect, and effectively reducing the cost.

[0120] In an optional implementation of this embodiment, the upper surface area of ​​the metal circuit layer 44 is larger than the lower surface area.

[0121] Specifically, Figure 8 As shown, Figure 8 The schematic diagram of the structure of the LED display device in the fourth embodiment of the present utility model is shown. Figure 8 Schematic diagrams of the structures of various types of LED display devices are given in FIG. 4 . The upper surface area of ​​the metal circuit layer 44 is larger than the lower surface area, and the upper surface covers the lower surface. The shape of the metal circuit layer 44 is not limited.

[0122] Here, a special-shaped structure is set on the side of the device to increase the airtightness of the device and improve the reliability of the device.

[0123] In summary, the fourth embodiment of the utility model provides an LED display device with a built-in driver IC chip and a P-shaped LED light-emitting chip, which can be applied to the reuse of an LED display module provided with multiple LED display devices, amplify the pixel pitch, improve the display effect, and effectively reduce the cost; a substrate-free structure is provided, so that the overall thickness of the display device is reduced, which is conducive to the development of ultra-thinness; a special-shaped structure in which the upper surface area of ​​the metal circuit layer is larger than the lower surface area is provided, so as to improve the airtightness of the display device and thereby improve the reliability of the display device.

[0124] Embodiment 5

[0125] The fifth embodiment of the present utility model provides an LED display device, such as Fig. 9 As shown, Fig. 9 A schematic structural diagram of an LED display device in a fifth embodiment of the present invention is shown, wherein the LED display device comprises a metal circuit layer 54, a driver IC chip 51, three LED light-emitting chips, and six pins, wherein the driver IC chip 51, three LED light-emitting chips, and six pins are arranged on an even-numbered metal circuit layer 54.

[0126] In an optional implementation of this embodiment, the LED display device further includes a bracket 55 , and the bracket 55 is arranged around the driver IC chip 51 and the three LED light-emitting chips.

[0127] Specifically, the bracket 55 can be a plastic bracket or a plate bracket, such as a PCB material, a BT board, etc.

[0128] In an optional implementation of this embodiment, the driver IC chip 51 includes six pins, namely a first LED light-emitting chip control pin 511, a second LED light-emitting chip control pin 512, a third LED light-emitting chip control pin 513, a power pin 514, a control signal pin 515, and a ground pin 516.

[0129] In an optional implementation of the present embodiment, the three LED light-emitting chips include a first LED light-emitting chip 521, a second LED light-emitting chip 522, and a third LED light-emitting chip 523. The first LED light-emitting chip 521, the second LED light-emitting chip 522, and the third LED light-emitting chip 523 are arranged in a triangular shape, surrounding the driver IC chip 51.

[0130] Specifically, the first LED light emitting chip 521 , the second LED light emitting chip 522 , and the third LED light emitting chip 523 are arranged in an equilateral triangle.

[0131] In an optional implementation of this embodiment, the first LED light emitting chip 521 is a red LED light emitting chip, the second LED light emitting chip 522 is a green LED light emitting chip, and the third LED light emitting chip 523 is a blue LED light emitting chip.

[0132] Furthermore, here, the first LED light emitting chip 521, the second LED light emitting chip 522, and the third LED light emitting chip 523 are respectively one red light chip, one green light chip, and one blue light chip.

[0133] In an optional implementation of this embodiment, any LED light-emitting chip includes a first electrode and a second electrode.

[0134] Specifically, the first electrode of the first LED light-emitting chip 521 is connected to the first LED light-emitting chip control pin 511, the first electrode of the second LED light-emitting chip 522 is connected to the second LED light-emitting chip control pin 512, and the first electrode of the third LED light-emitting chip 523 is connected to the third LED light-emitting chip control pin 513.

[0135] In an optional implementation of the present embodiment, the six pins include a first LED light-emitting chip power connection pin 531, a second LED light-emitting chip power connection pin 532, a third LED light-emitting chip power connection pin 533, a power pin 534, a control signal pin 535, and a ground pin 536, wherein the power pin 534 is connected to the power pin 514, the control signal pin 535 is connected to the control signal pin 515, and the ground pin 536 is connected to the ground pin 516.

[0136] In an optional implementation of the present embodiment, the second electrode of the first LED light-emitting chip 521 is connected to the first LED light-emitting chip power pin 531, the second electrode of the second LED light-emitting chip 522 is connected to the second LED light-emitting chip power pin 532, and the second electrode of the third LED light-emitting chip 523 is connected to the third LED light-emitting chip power pin 533.

[0137] In an optional implementation of this embodiment, the driver IC chip 51 , the first LED light-emitting chip 521 , the second LED light-emitting chip 522 , and the third LED light-emitting chip 523 are all front-mounted chips.

[0138] A built-in driver IC chip is provided here, and LED light-emitting chips are arranged in a triangular shape, which can be applied to the reuse of an LED display module provided with multiple LED display devices, amplifying the pixel pitch, improving the display effect, and effectively reducing the cost.

[0139] In summary, the fifth embodiment of the utility model provides an LED display device with a built-in driver IC chip and LED light-emitting chips arranged in a triangular shape. It can be applied to the reuse of an LED display module provided with multiple LED display devices, thereby enlarging the pixel pitch, improving the display effect, and effectively reducing the cost.

[0140] Embodiment 6

[0141] The sixth embodiment of the present utility model provides an LED display module, such as Fig.10 As shown, Fig.10 A schematic diagram of the structure of an LED display module in a sixth embodiment of the present utility model is shown. The LED display module includes four LED display devices in the first embodiment, and the four LED display devices are arranged in a 2*2 array.

[0142] In an optional implementation of this embodiment, Fig.10 As shown, the first LED display device 61 and the second LED display device 62 are placed forward, and the third LED display device 63 and the fourth LED display device 64 are placed reversely, that is, the first LED display device 61, the second LED display device 62 and the third LED display device 63, the fourth LED display device 64 are placed crosswise forward and reversely.

[0143] In an optional implementation of this embodiment, when multiplexing is required, multiplexing can be performed in both the horizontal direction and the vertical direction, or in either the horizontal direction or the vertical direction.

[0144] Specifically, when multiplexing is selected in the horizontal direction, two adjacent devices in the horizontal direction are placed in a cross-shaped forward and reversed state, as shown by the first LED display device 61 and the third LED display device 63 .

[0145] Furthermore, when multiplexing in the vertical direction is selected, two adjacent devices in the vertical direction can be placed in the forward direction or in the reverse direction, wherein the forward direction is shown as the first LED display device 61 and the second LED display device 62 .

[0146] Here, when multiplexing is performed in the horizontal and vertical directions at the same time, the dot pitch can be magnified by 1 times in both directions. At this time, under the condition of the same dot pitch, the usage of the driver IC chip is one-fourth of the original non-multiplexed one, and the cost is reduced by 75%.

[0147] In summary, the sixth embodiment of the utility model provides an LED display module, including four LED display devices in the first embodiment, which can be reused in the horizontal and vertical directions. When the same number of driver IC chips are used, the dot pitch is multiplied. When the same dot pitch is used, the number of driver IC chips used is saved, so that the circuit layout space is increased, the process level of the circuit board is reduced, the cost is effectively reduced, and the display effect is improved.

[0148] Embodiment 7

[0149] The seventh embodiment of the present utility model provides an LED display module, such as Fig.11 As shown, Fig.11 A schematic diagram of the structure of an LED display module in Embodiment 7 of the present invention is shown. The LED display module includes four LED display devices in Embodiment 3, which are arranged in a 2*2 array.

[0150] In an optional implementation of this embodiment, Fig.11 As shown, the first LED display device 71 and the second LED display device 72 are placed forward, and the third LED display device 73 and the fourth LED display device 74 are placed reversely, that is, the first LED display device 71, the second LED display device 72 and the third LED display device 73, the fourth LED display device 74 are placed crosswise forward and reversely.

[0151] In an optional implementation of this embodiment, when multiplexing is required, multiplexing can be performed in both the horizontal direction and the vertical direction, or in either the horizontal direction or the vertical direction.

[0152] Specifically, when multiplexing is selected in the horizontal direction, two adjacent devices in the horizontal direction are placed in a cross-shaped forward and reversed state, as shown by the first LED display device 71 and the third LED display device 73 .

[0153] Furthermore, when multiplexing in the vertical direction is selected, two adjacent devices in the vertical direction can be placed in the forward direction or in the reverse direction, wherein the forward direction is shown as the first LED display device 71 and the second LED display device 72 .

[0154] Here, when multiplexing is performed in the horizontal and vertical directions at the same time, the dot pitch can be magnified by 1 times in both directions. At this time, under the condition of the same dot pitch, the usage of the driver IC chip is one-fourth of the original non-multiplexed one, and the cost is reduced by 75%.

[0155] In summary, the seventh embodiment of the utility model provides an LED display module, including four LED display devices in the third embodiment, which can be reused in the horizontal and vertical directions. When the same number of driver IC chips are used, the dot pitch is multiplied. When the same dot pitch is used, the number of driver IC chips used is saved, so that the circuit layout space is increased, the process level of the circuit board is reduced, the cost is effectively reduced, and the display effect is improved.

[0156] Embodiment 8

[0157] Embodiment 8 of the present invention provides an LED display module, which includes a controller and a plurality of LED display devices in Embodiment 1 or Embodiment 3, wherein the plurality of LED display devices are arranged in an array of m rows and n columns.

[0158] In an optional implementation of this embodiment, Fig.12 As shown, Fig.12 The figure shows a connection diagram of an LED display module in an eighth embodiment of the present utility model, wherein the LED display module comprises a controller and four LED display devices arranged in the same row.

[0159] In an optional implementation of this embodiment, a power pin VCC of any LED display device is connected to a power terminal VCC of the controller, and a ground pin GND of any LED display device is connected to a ground terminal GND of the controller.

[0160] Specifically, the power pins VCC of the four LED display devices in the figure are all connected to the power terminal VCC of the controller, and the ground pins GND of the four LED display devices are all connected to the ground terminal GND of the controller.

[0161] In an optional implementation of this embodiment, the control signal output pin DO of the LED display device in the mth row and n-1th column is connected to the control signal input pin DI of the LED display device in the mth row and nth column, where m is a positive integer, n is a positive integer, and n>2.

[0162] Specifically, Fig.12As shown, the control signal input pin DI of the LED display device in the 1st row and 1st column is connected to the control signal terminal D of the controller, the control signal output pin DO of the LED display device in the 1st row and 1st column is connected to the control signal input pin DI of the LED display device in the 1st row and 2nd column, the control signal output pin DO of the LED display device in the 1st row and 2nd column is connected to the control signal input pin DI of the LED display device in the 1st row and 3rd column, and so on for the remaining LED display devices.

[0163] Furthermore, the control signal output pin DO of the LED display device in the 1st row and the n-2nd column is connected to the control signal input pin DI of the LED display device in the 1st row and the n-1st column, and the control signal output pin DO of the LED display device in the 1st row and the n-1st column is connected to the control signal input pin DI of the LED display device in the 1st row and the n-2nd column.

[0164] In summary, Embodiment 8 of the present invention provides an LED display module, including a controller and several LED display devices in Embodiment 1 or Embodiment 3, and provides a connection method, which is applied to the multiplexing of LED display modules provided with multiple LED display devices, amplifying the pixel pitch, improving the display effect, and effectively reducing the cost.

[0165] Embodiment 9

[0166] Embodiment 9 of the present invention provides an LED display module, which includes a controller and a plurality of LED display devices in Embodiment 2, wherein the plurality of LED display devices are arranged in an array of m rows and n columns.

[0167] In an optional implementation of this embodiment, Fig.13 As shown, Fig.13 The figure shows a connection diagram of an LED display module in a ninth embodiment of the present utility model, wherein the LED display module comprises a controller and six LED display devices arranged in the same row.

[0168] In an optional implementation of this embodiment, a power pin VCC of any LED display device is connected to a power terminal VCC of the controller, and a ground pin GND of any LED display device is connected to a ground terminal GND of the controller.

[0169] Specifically, the power pins VCC of the six LED display devices in the figure are all connected to the power terminal VCC of the controller, and the ground pins GND of the six LED display devices are all connected to the ground terminal GND of the controller.

[0170] In an optional implementation of the present embodiment, the first control signal output pin DO0 of the LED display device in the mth row and n-2 column is connected to the first control signal input pin DI0 of the LED display device in the mth row and n-1 column, and the second control signal output pin DO1 of the LED display device in the mth row and n-1 column is connected to the second control signal input pin DI1 of the LED display device in the mth row and n-1 column, where m is a positive integer, n is a positive integer, and n>2.

[0171] Specifically, Fig.13 As shown, the first control signal input pin DI0 of the LED display device in the 1st row and 1st column is connected to the first control signal input terminal D0 of the controller, the second control signal input pin DI1 of the LED display device in the 1st row and 1st column is connected to the second control signal input terminal D1 of the controller, the second control signal input pin DI1 of the LED display device in the 1st row and 2nd column is connected to the third control signal input terminal D2 of the controller, the first control signal output pin DO0 of the LED display device in the 1st row and 1st column is connected to the first control signal input pin DI0 of the LED display device in the 1st row and 2nd column, the second control signal output pin DO1 of the LED display device in the 1st row and 1st column is connected to the second control signal input pin DI1 of the LED display device in the 1st row and 3rd column, the first control signal output pin DO0 of the LED display device in the 1st row and 2nd column is connected to the first control signal input pin DI0 of the LED display device in the 1st row and 3rd column, and the second control signal output pin DO1 of the LED display device in the 1st row and 2nd column is connected to the second control signal input pin DI1 of the LED display device in the 1st row and 4th column.

[0172] Furthermore, the first control signal output pin DO0 of the LED display device in the 1st row and n-2nd column is connected to the first control signal input pin DI0 of the LED display device in the 1st row and n-1st column, and the second control signal output pin DO1 of the LED display device in the 1st row and n-1st column is connected to the second control signal input pin DI1 of the LED display device in the 1st row and n-1st column.

[0173] In summary, Embodiment 9 of the present invention provides an LED display module, including a controller and several LED display devices in Embodiment 2, and provides a connection method, is provided with a main line and a backup line, has dual input and dual output, improves reliability, and is applied to the multiplexing of LED display modules provided with multiple LED display devices, amplifies the pixel pitch, improves the display effect, and effectively reduces the cost.

[0174] Embodiment 10

[0175] Embodiment 10 of the present invention provides an LED display module, which includes a controller and a plurality of LED display devices in Embodiment 2, wherein the plurality of LED display devices are arranged in an array of m rows and n columns.

[0176] In an optional implementation of this embodiment, Fig.14 As shown, Fig.14 The LED display module connection diagram in the tenth embodiment of the present utility model is shown. The LED display module includes a controller and four LED display devices arranged in the same row.

[0177] In an optional implementation of this embodiment, a power pin VCC of any LED display device is connected to a power terminal VCC of the controller, and a ground pin GND of any LED display device is connected to a ground terminal GND of the controller.

[0178] Specifically, the power pins VCC of the four LED display devices in the figure are all connected to the power terminal VCC of the controller, and the ground pins GND of the four LED display devices are all connected to the ground terminal GND of the controller.

[0179] In an optional implementation of the present embodiment, the first control signal output pin DO0 of the LED display device in the mth row and n-1 column is connected to the first control signal input pin DI0 of the LED display device in the mth row and n column, and the second control signal output pin DO1 of the LED display device in the mth row and n-1 column is connected to the second control signal input pin DI1 of the LED display device in the mth row and n column, where m is a positive integer, n is a positive integer, and n>2.

[0180] Specifically, Fig.14 As shown, the first control signal input pin DI0 of the LED display device in the 1st row and 1st column is connected to the first control signal input terminal D0 of the controller, the second control signal input pin DI1 of the LED display device in the 1st row and 1st column is connected to the second control signal input terminal D1 of the controller, the first control signal output pin DO0 of the LED display device in the 1st row and 1st column is connected to the first control signal input pin DI0 of the LED display device in the 1st row and 2nd column, and the second control signal output pin DO1 of the LED display device in the 1st row and 1st column is connected to the second control signal input pin DI1 of the LED display device in the 1st row and 2nd column.

[0181] Furthermore, the first control signal output pin DO0 of the LED display device in the 1st row and n-1th column is connected to the first control signal input pin DI0 of the LED display device in the 1st row and nth column, and the second control signal output pin DO1 of the LED display device in the 1st row and n-1th column is connected to the second control signal input pin DI1 of the LED display device in the 1st row and nth column.

[0182] In summary, embodiment ten of the utility model provides an LED display module, including a controller and several LED display devices in embodiment two, and provides a connection method, with a main line and a backup line, the main line and the backup line are connected in parallel to improve reliability, and are applied to the multiplexing of LED display modules provided with multiple LED display devices, to enlarge the pixel pitch, to improve the display effect, and to effectively reduce costs.

[0183] Embodiment 11

[0184] The eleventh embodiment of the present invention provides an LED display module, which includes a controller and a plurality of LED display devices in the second embodiment, wherein the plurality of LED display devices are arranged in an array of m rows and n columns.

[0185] In an optional implementation of this embodiment, Fig.15 As shown, Fig.15 The figure shows a connection diagram of an LED display module in the eleventh embodiment of the present utility model, wherein the LED display module comprises a controller and four LED display devices arranged in the same row.

[0186] In an optional implementation of this embodiment, a power pin VCC of any LED display device is connected to a power terminal VCC of the controller, and a ground pin GND of any LED display device is connected to a ground terminal GND of the controller.

[0187] Specifically, the power pins VCC of the four LED display devices in the figure are all connected to the power terminal VCC of the controller, and the ground pins GND of the four LED display devices are all connected to the ground terminal GND of the controller.

[0188] In an optional implementation of the present embodiment, the first control signal output pin DO0 of the LED display device in the mth row and n-2 column is connected to the first control signal input pin DI0 of the LED display device in the mth row and n-1 column and the second control signal input and output pin of the LED display device in the mth row and n column, where m is a positive integer, n is a positive integer, and n>2.

[0189] Specifically, Fig.15As shown, the first control signal input pin DI0 of the LED display device in the 1st row and 1st column is connected to the first control signal input terminal D0 of the controller, the second control signal input pin DI1 of the LED display device in the 1st row and 2nd column is connected to the first control signal input terminal D1 of the controller, the second control signal input pin DI1 of the LED display device in the 1st row and 1st column is connected to the second control signal input terminal D1 of the controller, and the first control signal output pin DO0 of the LED display device in the 1st row and 1st column is connected to the first control signal input pin DI0 of the LED display device in the 1st row and 2nd column and the second control signal input pin DI1 of the LED display device in the 1st row and 3rd column.

[0190] Furthermore, the first control signal output pin DO0 of the LED display device in the 1st row and the n-2nd column is connected to the first control signal input pin DI0 of the LED display device in the 1st row and the n-1st column and the second control signal input pin DI1 of the LED display device in the 1st row and the nth column.

[0191] In summary, embodiment eleven of the utility model provides an LED display module, including a controller and several LED display devices in embodiment two, and provides a connection method, is provided with a main line and a backup line, dual input and single output, improves reliability, and is applied to the multiplexing of LED display modules provided with multiple LED display devices, amplifies the pixel pitch, improves the display effect, and effectively reduces the cost.

[0192] Embodiment 12

[0193] The twelfth embodiment of the present invention provides an LED display module, which includes a controller and a plurality of LED display devices according to the fourth embodiment or the fifth embodiment, wherein the plurality of LED display devices are arranged in an array of m rows and n columns.

[0194] In an optional implementation of this embodiment, Fig.16 As shown, Fig.16 A connection diagram of an LED display module in a twelfth embodiment of the present utility model is shown, wherein the LED display module comprises a controller and four LED display devices arranged in the same row.

[0195] In an optional implementation of this embodiment, a power pin VCC of any LED display device is connected to a power terminal VCC of the controller, and a ground pin GND of any LED display device is connected to a ground terminal GND of the controller.

[0196] Specifically, the power pins VCC of the four LED display devices in the figure are all connected to the power terminal VCC of the controller, and the ground pins GND of the four LED display devices are all connected to the ground terminal GND of the controller.

[0197] In an optional implementation of the present embodiment, the first LED light-emitting chip power pin R+, the second LED light-emitting chip power pin G+, and the third LED light-emitting chip power pin B+ of any LED display device are connected to the power supply terminal VCC of the controller, and the control signal pin DATA of any LED display device is connected to the control signal terminal DATA of the controller.

[0198] In summary, the twelfth embodiment of the utility model provides an LED display module, including a controller and several LED display devices in the fourth or fifth embodiment, and provides a connection method, control signals are transmitted in parallel, and reliability is improved. It is applied to the multiplexing of LED display modules provided with multiple LED display devices, amplifies the pixel pitch, improves the display effect, and effectively reduces the cost.

[0199] The above is a detailed introduction to an LED display device and an LED display module provided by an embodiment of the utility model. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. An LED display device, characterized in that: The LED display device comprises a metal circuit layer, a driver IC chip, a plurality of LED light-emitting chips, and a plurality of pins, wherein the driver IC chip, the plurality of LED light-emitting chips, and the plurality of pins are arranged on the metal circuit layer; The driver IC chip includes a plurality of pins, and the plurality of pins are correspondingly connected to the plurality of pins; The plurality of LED light-emitting chips include a first LED light-emitting chip, a second LED light-emitting chip, and a third LED light-emitting chip, wherein the first LED light-emitting chip, the second LED light-emitting chip, and the third LED light-emitting chip are arranged in a triangle shape, surrounding the driver IC chip; Any LED light-emitting chip includes a first electrode and a second electrode. The first electrode of the LED light-emitting chip is connected to the plurality of pins correspondingly, and the second electrode of the LED light-emitting chip is connected to the plurality of pins and the plurality of leads correspondingly.

2. The LED display device according to claim 1, characterized in that: The LED display device includes a power pin, a control signal input pin, a control signal output pin, and a ground pin; The driver IC chip includes a power pin, a control signal input pin, a control signal output pin, a ground pin, a first LED light-emitting chip control pin, a second LED light-emitting chip control pin, and a third LED light-emitting chip control pin; The power pin is connected to the power pin, the control signal input pin is connected to the control signal input pin, the control signal output pin is connected to the control signal output pin, the ground pin is connected to the ground pin, the first electrode of the first LED light-emitting chip is connected to the first LED light-emitting chip control pin, the first electrode of the second LED light-emitting chip is connected to the second LED light-emitting chip control pin, the first electrode of the third LED light-emitting chip is connected to the third LED light-emitting chip control pin, the second electrode of the first LED light-emitting chip, the second electrode of the second LED light-emitting chip, and the second electrode of the third LED light-emitting chip are respectively connected to the power pin and the power pin.

3. The LED display device according to claim 1, characterized in that: The LED display device includes a power pin, a control signal pin, a first LED light-emitting chip power pin, a second LED light-emitting chip power pin, a third LED light-emitting chip power pin, and a ground pin; The driver IC chip includes a power pin, a control signal pin, a ground pin, a first LED light-emitting chip control pin, a second LED light-emitting chip control pin, and a third LED light-emitting chip control pin; The power pin is connected to the power pin, the control signal pin is connected to the control signal pin, the ground pin is connected to the ground pin, the first electrode of the first LED light-emitting chip is connected to the control pin of the first LED light-emitting chip, the first electrode of the second LED light-emitting chip is connected to the control pin of the second LED light-emitting chip, the first electrode of the third LED light-emitting chip is connected to the control pin of the third LED light-emitting chip, the second electrode of the first LED light-emitting chip is connected to the power connection pin of the first LED light-emitting chip, the second electrode of the second LED light-emitting chip is connected to the power connection pin of the second LED light-emitting chip, and the second electrode of the third LED light-emitting chip is connected to the power connection pin of the third LED light-emitting chip.

4. The LED display device according to claim 1, characterized in that: The LED display device comprises a power pin, a first control signal input pin, a second control signal input pin, a first control signal output pin, a second control signal output pin, and a ground pin; The driver IC chip includes a power pin, a first control signal input pin, a second control signal input pin, a first control signal output pin, a second control signal output pin, a ground pin, a first LED light-emitting chip control pin, a second LED light-emitting chip control pin, and a third LED light-emitting chip control pin; The power pin is connected to the power pin, the first control signal input pin is connected to the first control signal input pin, the second control signal input pin is connected to the second control signal input pin, the first control signal output pin is connected to the first control signal output pin, the second control signal output pin is connected to the second control signal output pin, the ground pin is connected to the ground pin, the first electrode of the first LED light-emitting chip is connected to the first LED light-emitting chip control pin, the first electrode of the second LED light-emitting chip is connected to the second LED light-emitting chip control pin, the first electrode of the third LED light-emitting chip is connected to the third LED light-emitting chip control pin, and the second electrode of the first LED light-emitting chip, the second electrode of the second LED light-emitting chip, and the second electrode of the third LED light-emitting chip are respectively connected to the power pin and the power pin.

5. The LED display device according to any one of claims 2 to 4, characterized in that: The upper surface area of ​​the metal circuit layer is larger than the lower surface area.

6. The LED display device according to any one of claims 2 to 4, characterized in that: The LED display device further comprises a circuit substrate, and the metal circuit layer is arranged on the circuit substrate.

7. The LED display device according to claim 1, characterized in that: The LED display device further comprises a bracket, and the bracket is arranged around the driving IC chip and the plurality of LED light-emitting chips.

8. The LED display device according to claim 7, characterized in that: The driver IC chip is a face-up chip or a flip-chip; The LED light emitting chip is a face-up chip or a flip-up chip.

9. An LED display module, characterized in that: The LED display module comprises a controller and a plurality of LED display devices according to any one of claims 1 to 8, wherein the LED display devices are arranged in an array of m rows and n columns; Wherein m is a positive integer, n is a positive integer, and n>2.

10. The LED display module according to claim 9, characterized in that: A power pin of any LED display device is connected to a power terminal of the controller, and a ground pin of any LED display device is connected to a ground terminal of the controller.

11. The LED display module according to claim 10, characterized in that: The control signal input pin of the LED display device in the first row and the first column is connected to the control signal terminal of the controller, the control signal output pin of the LED display device in the first row and the first column is connected to the control signal input pin of the LED display device in the first row and the second column, and the control signal output pin of the LED display device in the first row and the second column is connected to the control signal input pin of the LED display device in the first row and the third column; The control signal output pin of the LED display device in the first row and the n-2 column is connected to the control signal input pin of the LED display device in the first row and the n-1 column, and the control signal output pin of the LED display device in the first row and the n-1 column is connected to the control signal input pin of the LED display device in the first row and the n-2 column; The control signal output pin of the LED display device in the mth row and the n-1th column is connected to the control signal input pin of the LED display device in the mth row and the nth column; Wherein m is a positive integer, n is a positive integer, and n>2.

12. The LED display module according to claim 10, characterized in that: The first control signal input pin of the LED display device in the first row and the first column is connected to the first control signal input terminal of the controller, the second control signal input pin of the LED display device in the first row and the first column is connected to the second control signal input terminal of the controller, the second control signal input pin of the LED display device in the first row and the second column is connected to the third control signal input terminal of the controller, the first control signal output pin of the LED display device in the first row and the first column is connected to the first control signal input pin of the LED display device in the first row and the second column, the second control signal output pin of the LED display device in the first row and the first column is connected to the second control signal input pin of the LED display device in the first row and the third column, the first control signal output pin of the LED display device in the first row and the second column is connected to the second control signal input pin of the LED display device in the first row and the fourth column; The first control signal output pin of the LED display device in the first row and the n-2 column is connected to the first control signal input pin of the LED display device in the first row and the n-1 column, and the second control signal output pin of the LED display device in the first row and the n-1 column is connected to the second control signal input pin of the LED display device in the first row and the n-2 column; The first control signal output pin of the LED display device in the mth row and n-2th column is connected to the first control signal input pin of the LED display device in the mth row and n-1th column, and the second control signal output pin of the LED display device in the mth row and n-1th column is connected to the second control signal input pin of the LED display device in the mth row and nth column; Wherein m is a positive integer, n is a positive integer, and n>2.

13. The LED display module according to claim 10, characterized in that: The first control signal input pin of the LED display device in the first row and the first column is connected to the first control signal input terminal of the controller, the second control signal input pin of the LED display device in the first row and the first column is connected to the second control signal input terminal of the controller, the first control signal output pin of the LED display device in the first row and the first column is connected to the first control signal input pin of the LED display device in the first row and the second column, and the second control signal output pin of the LED display device in the first row and the first column is connected to the second control signal input pin of the LED display device in the first row and the second column; The first control signal output pin of the LED display device in the first row and the n-1 column is connected to the first control signal input pin of the LED display device in the first row and the n column, and the second control signal output pin of the LED display device in the first row and the n-1 column is connected to the second control signal input pin of the LED display device in the first row and the n column; The first control signal output pin of the LED display device in the mth row and n-1th column is connected to the first control signal input pin of the LED display device in the mth row and nth column, and the second control signal output pin of the LED display device in the mth row and n-1th column is connected to the second control signal input pin of the LED display device in the mth row and nth column; Wherein m is a positive integer, n is a positive integer, and n>2.

14. The LED display module according to claim 10, characterized in that: The first control signal input pin of the LED display device in the first row and the first column is connected to the first control signal input terminal of the controller, the second control signal input pin of the LED display device in the first row and the second column is connected to the first control signal input terminal of the controller, the second control signal input pin of the LED display device in the first row and the first column is connected to the second control signal input terminal of the controller, and the first control signal output pin of the LED display device in the first row and the first column is connected to the first control signal input pin of the LED display device in the first row and the second column and the second control signal input and output pin of the LED display device in the first row and the third column; The first control signal output pin of the LED display device in the first row and the n-2 column is connected to the first control signal input pin of the LED display device in the first row and the n-1 column and the second control signal input pin of the LED display device in the first row and the n-2 column; The first control signal output pin of the LED display device in the mth row and n-2nd column is connected to the first control signal input pin of the LED display device in the mth row and n-1st column and the second control signal input and output pin of the LED display device in the mth row and nth column; Wherein m is a positive integer, n is a positive integer, and n>2.

15. The LED display module according to claim 10, characterized in that: The first LED light-emitting chip power pin, the second LED light-emitting chip power pin and the third LED light-emitting chip power pin of any LED display device are connected to the power supply end of the controller, and the control signal pin of any LED display device is connected to the control signal end of the controller.

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