LED display device and LED display module

Abstract

The LED display device comprises a support, a driving IC chip and three LED light-emitting chips, a bonding pad is arranged on the support, the driving IC chip and the three LED light-emitting chips are all arranged on the bonding pad, and the bonding pad is correspondingly connected with first electrodes of the three LED light-emitting chips; a pin is arranged on the surface of the driving IC chip, and the pin is correspondingly connected with the bonding pad and the second electrodes of the three LED light-emitting chips; the pins comprise more than two signal input pins and more than two signal output pins, and the more than one signal input pin and the more than one signal output pin are arranged on one side of the surface of the driving IC chip; the more than one signal input pin and the more than one signal output pin are arranged on the other side of the surface of the driving IC chip. The problem of display color cast is effectively solved, and the display consistency and the display effect of the LED display module based on splicing forming are improved.

Description

Technical Field

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

[0002] At present, LED display products that use the integrated lamp-driver driving method have voltage drop attenuation problems, which results in the length of a single finished LED display module being limited. Generally, the longest length is only about 1.5 meters. However, in some actual application scenarios, the size requirement exceeds 1.5 meters. Therefore, it is necessary to adopt the form of splicing to splice multiple LED display modules into an LED display module with a length of more than 1.5 meters and put it into use.

[0003] However, there is a problem with the current form of splicing LED display modules: due to the consistency of the driving direction, the two adjacent LED display modules need to be mounted at 180 degrees to each other. In actual application scenarios, since the two adjacent LED display modules are mounted at 180 degrees to each other, the LED display devices in the two LED display modules will also be mounted at 180 degrees, which will cause the arrangement order of the light-emitting chips of the LED display devices in the two LED display modules to change, which will lead to the problem of adjacent display color cast, poor display consistency, and poor display effect. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art. The present invention provides an LED display device and an LED display module, which effectively solve the problem of display color cast and improve the display consistency and display effect of the LED display module based on splicing molding.

[0005] The present invention provides an LED display device, comprising a bracket, a driver IC chip and three LED light-emitting chips, wherein the bracket is provided with a plurality of solder pads, the driver IC chip and the three LED light-emitting chips are all provided on the plurality of solder pads, and the plurality of solder pads are connected to the first electrodes of the three LED light-emitting chips correspondingly;

[0006] The surface of the driver IC chip is provided with a plurality of pins, and the plurality of pins are correspondingly connected to the plurality of pads and the second electrodes of the three LED light-emitting chips;

[0007] The plurality of pins include more than two signal input pins and more than two signal output pins, wherein one or more signal input pins and one or more signal output pins are arranged on one side of the surface of the driver IC chip, and one or more signal input pins and one or more signal output pins are arranged on the other side of the surface of the driver IC chip.

[0008] Furthermore, the plurality of pins also include a power pin, a ground pin, and three LED light-emitting chip control pins, and the three LED light-emitting chip control pins are respectively connected to the second electrodes of the three LED light-emitting chips in a one-to-one correspondence.

[0009] Furthermore, the plurality of pads include more than one signal input pad, more than one signal output pad, a power pad and a ground pad, the signal input pad is correspondingly connected to the signal input pin, the signal output pad is correspondingly connected to the signal output pin, the power pad is connected to the power pin, the ground pad is connected to the ground pin, and the power pad is correspondingly connected to the first electrodes of three LED light-emitting chips.

[0010] Furthermore, the bracket also includes a plurality of pins, including one or more signal input pins, one or more signal output pins, a power pin and a ground pin, the signal input pin is correspondingly connected to the signal input pad, the signal output pin is correspondingly connected to the signal output pad, the power pin is connected to the power pad, and the ground pin is connected to the ground pad.

[0011] Further, the plurality of pins include two signal input pins and two signal output pins;

[0012] The plurality of pads include a signal input pad and a signal output pad;

[0013] The plurality of pins include a signal input pin and a signal output pin.

[0014] Furthermore, one of the signal input pins and one of the signal output pins are located on one side of the surface of the driver IC chip, and one of the signal input pins and one of the signal output pins are located on the other side of the surface of the driver IC chip.

[0015] Further, the plurality of pins include three signal input pins and two signal output pins;

[0016] The plurality of pads include two signal input pads and one signal output pad;

[0017] The plurality of pins include two signal input pins and one signal output pin.

[0018] Furthermore, the two signal input pins and the one signal output pin are located on one side of the surface of the driver IC chip, and the one signal input pin and the one signal output pin are located on the other side of the surface of the driver IC chip.

[0019] Further, the plurality of pins include four signal input pins and four signal output pins;

[0020] The plurality of pads include two signal input pads and two signal output pads;

[0021] The plurality of pins include two signal input pins and two signal output pins.

[0022] Furthermore, the two signal input pins and the two signal output pins are located on one side of the surface of the driver IC chip, and the two signal input pins and the two signal output pins are located on the other side of the surface of the driver IC chip.

[0023] Furthermore, the plurality of pins also include spare pins.

[0024] Furthermore, the plurality of pads further include spare pads, the plurality of pins further include spare pins, and the spare pins, spare pads, and spare pins are connected to each other.

[0025] Furthermore, the three LED light-emitting chips include a red LED light-emitting chip, a green LED light-emitting chip and a blue LED light-emitting chip.

[0026] Furthermore, the red LED light emitting chip is arranged on the power supply pad.

[0027] The present invention also provides an LED display module, which includes a plurality of first display modules and a plurality of second display modules, wherein the first display modules and the second display modules are alternately spliced ​​together, wherein the first display module is provided with a plurality of the above-mentioned LED display devices, and the second display module is provided with a plurality of the above-mentioned LED display devices.

[0028] The present invention provides an LED display device and an LED display module. By adopting a windowing form on the pins on the surface of a driver IC chip, that is, increasing the number of signal input pins and signal output pins, the number is increased from the conventional one signal input pin and one signal output pin to more than two signal input pins and more than two signal output pins, and more than one signal input pin and more than one signal output pin are respectively arranged on the left and right sides of the surface of the driver IC chip. By different wire bonding connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180 degrees with each other, effectively solving the problem of display color cast, having stronger versatility, lower manufacturing cost, easier control of incoming material process, and improving the display consistency and display effect of the LED display module based on splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 is a schematic diagram of the front structure of the LED display device in the first embodiment of the present invention;

[0031] Figure 2 It is an enlarged schematic diagram of the front structure of the LED display device in the first embodiment of the present invention;

[0032] Figure 3 is a schematic diagram of the front structure of the LED display device in the second embodiment of the present invention;

[0033] Figure 4 is an enlarged schematic diagram of the front structure of the LED display device in the second embodiment of the present invention;

[0034] Figure 5 is a schematic diagram of the front structure of the LED display device in the third embodiment of the present invention;

[0035] Figure 6 It is an enlarged schematic diagram of the front structure of the LED display device in the third embodiment of the present invention;

[0036] Figure 7 is a schematic diagram of the back structure of the LED display device in the third embodiment of the present invention;

[0037] Figure 8 is a schematic diagram of the front structure of an LED display device in a fourth embodiment of the present invention;

[0038] Fig. 9 is an enlarged schematic diagram of the front structure of the LED display device in the fourth embodiment of the present invention;

[0039] Fig.10 is a schematic diagram of the back structure of the LED display device in the fourth embodiment of the present invention;

[0040] Fig.11 is a schematic diagram of the front structure of the LED display device in the fifth embodiment of the present invention;

[0041] Fig.12 is an enlarged schematic diagram of the front structure of the LED display device in the fifth embodiment of the present invention;

[0042] Fig.13 is a schematic diagram of the back structure of the LED display device in the fifth embodiment of the present invention;

[0043] Fig.14 is a schematic diagram of the front structure of an LED display device in Embodiment 6 of the present invention;

[0044] Fig.15 is an enlarged schematic diagram of the front structure of the LED display device in the sixth embodiment of the present invention;

[0045] Fig.16 is a schematic diagram of the back structure of the LED display device in the sixth embodiment of the present invention;

[0046] Fig.17 is a schematic diagram of the splicing structure of the LED display module in the seventh embodiment of the present invention;

[0047] Fig.18 is a schematic diagram of the splicing structure of the LED display module in the eighth embodiment of the present invention;

[0048] Fig.19 It is a schematic diagram of the LED display module splicing structure in the ninth embodiment of the present invention. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the present invention, it should be understood that terms such as "include" or "have" are intended to indicate the existence of features, numbers, steps, behaviors, components, parts or a combination thereof disclosed in the specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts or a combination thereof exist or are added.

[0051] It should also be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0052] Embodiment 1

[0053] Embodiment 1 of the present invention provides an LED display device, which includes a bracket, a driver IC chip and three LED light-emitting chips.

[0054] In an optional implementation of this embodiment, Figure 1 As shown, Figure 1A schematic diagram of the front structure of an LED display device in Embodiment 1 of the present invention is shown, wherein the LED display device comprises a bracket 11, a driver IC chip 12 and three LED light-emitting chips, wherein the three LED light-emitting chips comprise a first LED light-emitting chip 13, a second LED light-emitting chip 14 and a third LED light-emitting chip 15.

[0055] In an optional implementation of this embodiment, Figure 2 As shown, Figure 2 FIG. 1 shows an enlarged schematic diagram of the front structure of the LED display device in the first embodiment of the present invention. Figure 2 for Figure 1 As shown in the schematic diagram at a, nine pins are arranged on the surface of the driver IC chip 12, including two signal input pins and two signal output pins, the two signal input pins include a first signal input pin 21 and a second signal input pin 22, the two signal output pins include a first signal output pin 23 and a second signal output pin 24, wherein the first signal input pin 21 and the second signal output pin 24 are arranged on the left side of the surface of the driver IC chip 12, and the second signal input pin 22 and the first signal output pin 23 are arranged on the right side of the surface of the driver IC chip 12.

[0056] In an optional implementation of this embodiment, the pins also include a power pin 25, a ground pin 26 and three LED light-emitting chip control pins, including a first LED light-emitting chip control pin 27, a second LED light-emitting chip control pin 28 and a third LED light-emitting chip control pin 29.

[0057] In an optional implementation of the present embodiment, four pads are provided on the bracket 11, including a signal input pad and a signal output pad, including a first signal input pad 31, a first signal output pad 32, a power pad 33 and a ground pad 34, the driver IC chip 12 is provided on the ground pad 34, the first LED light-emitting chip 13 and the second LED light-emitting chip 14 are provided on the power pad 33, and the third LED light-emitting chip 15 is provided on the first signal output pad 32.

[0058] In an optional implementation of this embodiment, the power pad 33 is connected to the first electrode of the first LED light emitting chip 13 , the first electrode of the second LED light emitting chip 14 , and the first electrode of the third LED light emitting chip 15 .

[0059] In an optional implementation of the present embodiment, the first signal input pin 21 is connected to the first signal input pad 31, the first signal output pin 23 is connected to the first signal output pad 32, the power pin 25 is connected to the power pad 33, the ground pin 26 is connected to the ground pad 34, the first LED light-emitting chip control pin 27 is connected to the second electrode of the first LED light-emitting chip 13, the second LED light-emitting chip control pin 28 is connected to the second electrode of the second LED light-emitting chip 14, and the third LED light-emitting chip control pin 29 is connected to the second electrode of the third LED light-emitting chip 15.

[0060] In an optional implementation of the present embodiment, the bracket 11 also includes four pins, and the four pins include a signal input pin and a signal output pin, including a first signal input pin 16, a first signal output pin 17, a power pin 18 and a ground pin 19, the first signal input pin 16 is connected to the first signal input pad 31, the first signal output pin 17 is connected to the first signal output pad 32, the power pin 18 is connected to the power pad 33, and the ground pin 19 is connected to the ground pad 34.

[0061] In an optional implementation of this embodiment, the three LED light-emitting chips include a red LED light-emitting chip, a green LED light-emitting chip and a blue LED light-emitting chip.

[0062] Specifically, the first LED light emitting chip 13 is a red LED light emitting chip, the second LED light emitting chip 14 is a green LED light emitting chip, and the third LED light emitting chip 15 is a blue LED light emitting chip.

[0063] In an optional implementation of this embodiment, the red LED light emitting chip is disposed on the power supply pad 33 .

[0064] Specifically, since the first electrode of the red LED light emitting chip is arranged at the bottom of the chip, the red LED light emitting chip needs to be arranged on the power supply pad and connected to the power supply pad.

[0065] In an optional implementation of this embodiment, the driver IC chip is a front-mounted chip, the LED light-emitting chip is a front-mounted chip, and the pins on the surface of the driver IC chip, the electrodes of the LED light-emitting chip and the pads are connected based on bonding wires.

[0066] In summary, embodiment 1 of the present invention provides an LED display device, which adopts a window form on the pins on the surface of the driver IC chip, that is, increasing the number of signal input pins and signal output pins, from the conventional one signal input pin and one signal output pin to two signal input pins and two signal output pins, and respectively providing a signal input pin and a signal output pin on the left and right sides of the surface of the driver IC chip. Through different wire connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180° to each other, which effectively solves the problem of display color cast, has stronger versatility, lower manufacturing cost, and easier control of incoming material process, thereby improving the display consistency and display effect of LED display modules based on splicing molding.

[0067] Embodiment 2

[0068] A second embodiment of the present invention provides an LED display device, which includes a bracket, a driver IC chip and three LED light-emitting chips.

[0069] In an optional implementation of this embodiment, Figure 3 and Figure 4 As shown, Figure 3 FIG. 2 shows a schematic diagram of the front structure of an LED display device in Embodiment 2 of the present invention. Figure 4 FIG. 1 shows an enlarged schematic diagram of the front structure of the LED display device in the second embodiment of the present invention. Figure 4 for Figure 3 Schematic diagram at point a in the middle.

[0070] It should be noted that the structure of the LED display device in the second embodiment is basically the same as that in the first embodiment, except that:

[0071] The first signal input pad 31 in the first embodiment is the first signal output pad 32 in the second embodiment;

[0072] The first signal output pad 32 in the first embodiment is the first signal input pad 31 in the second embodiment;

[0073] The first signal input pin 21 in the first embodiment is connected to the first signal input pad 31. In the second embodiment, the first signal input pin 21 is not connected to the first signal input pad 31, but the second signal input pin 22 is connected to the first signal input pad 31.

[0074] The first signal output pin 23 in the first embodiment is connected to the first signal output pad 32. In the second embodiment, the first signal output pin 23 is not connected to the first signal output pad 32, but the second signal output pin 24 is connected to the first signal output pad 32.

[0075] The first signal input pin 16 in the first embodiment is the first signal output pin 17 in the second embodiment;

[0076] The first signal output pin 17 in the first embodiment is the first signal input pin 16 in the second embodiment.

[0077] Except for the above differences, the rest of the structure of the LED display device in the second embodiment is completely consistent with the structure of the LED display device in the first embodiment, and will not be described in detail here.

[0078] In summary, embodiment 2 of the present invention provides an LED display device, which adopts a window form on the pins on the surface of the driver IC chip, that is, increasing the number of signal input pins and signal output pins, from the conventional one signal input pin and one signal output pin to two signal input pins and two signal output pins, and respectively providing a signal input pin and a signal output pin on both sides of the surface of the driver IC chip. Through different wire connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180° to each other, which effectively solves the problem of display color cast, has stronger versatility, lower manufacturing cost, and easier control of incoming material process, thereby improving the display consistency and display effect of the LED display module based on splicing.

[0079] Embodiment 3

[0080] A third embodiment of the present invention provides an LED display device, which includes a bracket, a driver IC chip and three LED light-emitting chips.

[0081] In an optional implementation of this embodiment, Figure 5 As shown, Figure 5 A schematic diagram of the front structure of an LED display device in Embodiment 3 of the present invention is shown, wherein the LED display device comprises a bracket 41, a driver IC chip 42 and three LED light-emitting chips, wherein the three LED light-emitting chips comprise a first LED light-emitting chip 43, a second LED light-emitting chip 44 and a third LED light-emitting chip 45.

[0082] In an optional implementation of this embodiment, Figure 6 As shown, Figure 6 FIG. 1 shows an enlarged schematic diagram of the front structure of the LED display device in the third embodiment of the present invention. Figure 6 for Figure 5As shown in the schematic diagram at a in the middle, eleven pins are arranged on the surface of the driver IC chip 42, including three signal input pins and two signal output pins, the three signal input pins include a first signal input pin 501, a second signal input pin 502 and a third signal input pin 503, the two signal output pins include a first signal output pin 504 and a second signal output pin 505, wherein the first signal input pin 501, the second signal input pin 502 and the first signal output pin 504 are arranged on the left side of the surface of the driver IC chip 42, and the third signal input pin 503 and the second signal output pin 505 are arranged on the right side of the surface of the driver IC chip 42.

[0083] In an optional implementation of this embodiment, the pins also include a power pin 506, a ground pin 507 and three LED light-emitting chip control pins, including a first LED light-emitting chip control pin 508, a second LED light-emitting chip control pin 509 and a third LED light-emitting chip control pin 510.

[0084] In an optional implementation of this embodiment, the pins further include a spare pin 511 .

[0085] In an optional implementation of the present embodiment, six pads are provided on the bracket 41, including two signal input pads and one signal output pad, including a first signal input pad 61, a second signal input pad 62, a first signal output pad 63, a power pad 64 and a ground pad 65, the driver IC chip 42 is provided on the ground pad 65, the first LED light-emitting chip 43 and the second LED light-emitting chip 44 are provided on the power pad 64, and the third LED light-emitting chip 45 is provided on the first signal output pad 63.

[0086] In an optional implementation of this embodiment, the pads further include a spare pad 66 .

[0087] In an optional implementation of this embodiment, the power pad 64 is connected to the first electrode of the first LED light emitting chip 43 , the first electrode of the second LED light emitting chip 44 , and the first electrode of the third LED light emitting chip 45 .

[0088] In an optional implementation of the present embodiment, the first signal input pin 501 is connected to the first signal input pad 61, the second signal input pin 502 is connected to the second signal input pad 62, the second signal output pin 505 is connected to the first signal output pad 63, the power pin 506 is connected to the power pad 64, the ground pin 507 is connected to the ground pad 65, the first LED light-emitting chip control pin 508 is connected to the second electrode of the first LED light-emitting chip 43, the second LED light-emitting chip control pin 509 is connected to the second electrode of the second LED light-emitting chip 44, and the third LED light-emitting chip control pin 510 is connected to the second electrode of the third LED light-emitting chip 45.

[0089] In an optional implementation of this embodiment, Figure 7 As shown, Figure 7 A schematic diagram of the back structure of the LED display device in Example 3 of the present invention is shown, and the bracket 41 also includes six pins, and the six pins include two signal input pins and one signal output pin, including a first signal input pin 46, a second signal input pin 47, a first signal output pin 48, a power pin 49 and a ground pin 40, the first signal input pin 46 is connected to the first signal input pad 61, the second signal input pin 47 is connected to the second signal input pad 62, the first signal output pin 48 is connected to the first signal output pad 63, the power pin 49 is connected to the power pad 64, and the ground pin 40 is connected to the ground pad 65.

[0090] In an optional implementation of this embodiment, the pins further include a spare pin 67 .

[0091] In an optional implementation of this embodiment, the spare pin 511 , the spare pad 66 , and the spare lead 67 are connected to each other.

[0092] In an optional implementation of this embodiment, the three LED light-emitting chips include a red LED light-emitting chip, a green LED light-emitting chip and a blue LED light-emitting chip.

[0093] Specifically, the first LED light emitting chip 43 is a red LED light emitting chip, the second LED light emitting chip 44 is a green LED light emitting chip, and the third LED light emitting chip 45 is a blue LED light emitting chip.

[0094] In an optional implementation of this embodiment, the red LED light emitting chip is disposed on the power supply pad 64 .

[0095] Specifically, since the first electrode of the red LED light emitting chip is arranged at the bottom of the chip, the red LED light emitting chip needs to be arranged on the power supply pad and connected to the power supply pad.

[0096] In an optional implementation of this embodiment, the driver IC chip is a front-mounted chip, the LED light-emitting chip is a front-mounted chip, and the pins on the surface of the driver IC chip, the electrodes of the LED light-emitting chip and the pads are connected based on bonding wires.

[0097] In summary, embodiment three of the present invention provides an LED display device, which adopts a window form on the pins on the surface of the driver IC chip, that is, increasing the number of signal input pins and signal output pins, from the conventional one signal input pin and one signal output pin to three signal input pins and two signal output pins, and two signal input pins and one signal output pin are arranged on the left side of the surface of the driver IC chip, and one signal input pin and one signal output pin are arranged on the right side. Through different wiring connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180° to each other, which effectively solves the problem of display color cast, has stronger versatility, lower manufacturing cost, and easier control of incoming material process, thereby improving the display consistency and display effect of LED display modules based on splicing.

[0098] Embodiment 4

[0099] A fourth embodiment of the present invention provides an LED display device, which includes a bracket, a driver IC chip and three LED light-emitting chips.

[0100] In an optional implementation of this embodiment, Figure 8 , Fig. 9 and Fig.10 As shown, Figure 8 FIG. 4 shows a schematic diagram of the front structure of an LED display device in a fourth embodiment of the present invention. Fig. 9 FIG. 1 shows an enlarged schematic diagram of the front structure of the LED display device in the fourth embodiment of the present invention. Fig.10 FIG. 4 shows a schematic diagram of the back structure of an LED display device in a fourth embodiment of the present invention. Fig. 9 for Figure 8 Schematic diagram at point a in the middle.

[0101] It should be noted that the structure of the LED display device in the fourth embodiment is basically the same as that in the third embodiment, except that:

[0102] The second signal input pad 62 in the third embodiment is the first signal output pad 63 in the fourth embodiment;

[0103] The first signal output pad 63 in the third embodiment is the second signal input pad 62 in the fourth embodiment;

[0104] The second signal input pin 502 in the third embodiment is connected to the second signal input pad 62. In the fourth embodiment, the second signal input pin 502 is not connected to the second signal input pad 62, but the third signal input pin 503 is connected to the second signal input pad 62.

[0105] The second signal output pin 505 in the third embodiment is connected to the first signal output pad 63. In the fourth embodiment, the second signal output pin 505 is not connected to the first signal output pad 63, but the first signal output pin 504 is connected to the first signal output pad 63.

[0106] The second signal input pin 47 in the third embodiment is the first signal output pin 48 in the fourth embodiment;

[0107] The first signal output pin 48 in the third embodiment is the second signal input pin 47 in the fourth embodiment.

[0108] Except for the above differences, the rest of the structure of the LED display device in the fourth embodiment is completely consistent with the structure of the LED display device in the third embodiment, and will not be described in detail here.

[0109] In summary, embodiment 4 of the present invention provides an LED display device, which adopts a window form on the pins on the surface of the driver IC chip, that is, increasing the number of signal input pins and signal output pins, from the conventional one signal input pin and one signal output pin to three signal input pins and two signal output pins, and two signal input pins and one signal output pin are arranged on the left side of the surface of the driver IC chip, and one signal input pin and one signal output pin are arranged on the right side. Through different wire connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180° to each other, which effectively solves the problem of display color cast, has stronger versatility, lower manufacturing cost, and easier control of incoming material process, thereby improving the display consistency and display effect of LED display modules based on splicing.

[0110] Embodiment 5

[0111] Embodiment 5 of the present invention provides an LED display device, which includes a bracket, a driver IC chip and three LED light-emitting chips.

[0112] In an optional implementation of this embodiment, Fig.11 As shown, Fig.11A schematic diagram of the front structure of the LED display device in the fifth embodiment of the present invention is shown, wherein the LED display device comprises a bracket 71, a driver IC chip 72 and three LED light-emitting chips, wherein the three LED light-emitting chips comprise a first LED light-emitting chip 73, a second LED light-emitting chip 74 and a third LED light-emitting chip 75.

[0113] In an optional implementation of this embodiment, Fig.12 As shown, Fig.12 FIG. 1 shows an enlarged schematic diagram of the front structure of the LED display device in the fifth embodiment of the present invention. Fig.12 for Fig.11 As shown in the schematic diagram at a in the middle, fourteen pins are arranged on the surface of the driver IC chip 72, including four signal input pins and four signal output pins, the four signal input pins include a first signal input pin 801, a second signal input pin 802, a third signal input pin 803 and a fourth signal input pin 804, the four signal output pins include a first signal output pin 805, a second signal output pin 806, a third signal output pin 807 and a fourth signal output pin 808, wherein the first signal input pin 801, the second signal input pin 802, the first signal output pin 805 and the second signal output pin 806 are arranged on the left side of the surface of the driver IC chip 72, and the third signal input pin 803, the fourth signal input pin 804, the third signal output pin 807 and the fourth signal output pin 808 are arranged on the right side of the surface of the driver IC chip 72.

[0114] In an optional implementation of this embodiment, the pins also include a power pin 809, a ground pin 810 and three LED light-emitting chip control pins, including a first LED light-emitting chip control pin 811, a second LED light-emitting chip control pin 812 and a third LED light-emitting chip control pin 813.

[0115] In an optional implementation of this embodiment, the pins further include a spare pin 814 .

[0116] In an optional implementation of the present embodiment, six pads are provided on the bracket 71, including two signal input pads and two signal output pads, including a first signal input pad 91, a second signal input pad 92, a first signal output pad 93, a second signal output pad 94, a power pad 95 and a ground pad 96, the driver IC chip 72 is arranged on the ground pad 96, the first LED light-emitting chip 73 and the second LED light-emitting chip 74 are arranged on the power pad 95, and the third LED light-emitting chip 75 is arranged on the first signal output pad 93.

[0117] In an optional implementation of this embodiment, the power pad 95 is connected to the first electrode of the first LED light emitting chip 73 , the first electrode of the second LED light emitting chip 74 , and the first electrode of the third LED light emitting chip 75 .

[0118] In an optional implementation of the present embodiment, the first signal input pin 801 is connected to the first signal input pad 91, the second signal input pin 802 is connected to the second signal input pad 92, the third signal output pin 807 is connected to the first signal output pad 93, the fourth signal output pin 808 is connected to the second signal output pad 94, the power pin 809 is connected to the power pad 95, the ground pin 810 is connected to the ground pad 96, the first LED light-emitting chip control pin 811 is connected to the second electrode of the first LED light-emitting chip 73, the second LED light-emitting chip control pin 812 is connected to the second electrode of the second LED light-emitting chip 74, and the third LED light-emitting chip control pin 813 is connected to the second electrode of the third LED light-emitting chip 75.

[0119] In an optional implementation of this embodiment, Fig.13 As shown, Fig.13 A schematic diagram of the back structure of the LED display device in Example 5 of the present invention is shown, the bracket 71 also includes six pins, the six pins include two signal input pins and two signal output pins, including a first signal input pin 76, a second signal input pin 77, a first signal output pin 78, a second signal output pin 79, a power pin 70 and a ground pin 97, the first signal input pin 76 is connected to the first signal input pad 91, the second signal input pin 77 is connected to the second signal input pad 92, the first signal output pin 78 is connected to the first signal output pad 93, the second signal output pin 79 is connected to the second signal output pad 94, the power pin 70 is connected to the power pad 95, and the ground pin 97 is connected to the ground pad 96.

[0120] In an optional implementation of this embodiment, the three LED light-emitting chips include a red LED light-emitting chip, a green LED light-emitting chip and a blue LED light-emitting chip.

[0121] Specifically, the first LED light emitting chip 73 is a red LED light emitting chip, the second LED light emitting chip 74 is a green LED light emitting chip, and the third LED light emitting chip 75 is a blue LED light emitting chip.

[0122] In an optional implementation of this embodiment, the red LED light emitting chip is disposed on the power supply pad 95 .

[0123] Specifically, since the first electrode of the red LED light emitting chip is arranged at the bottom of the chip, the red LED light emitting chip needs to be arranged on the power supply pad and connected to the power supply pad.

[0124] In an optional implementation of this embodiment, the driver IC chip is a front-mounted chip, the LED light-emitting chip is a front-mounted chip, and the pins on the surface of the driver IC chip, the electrodes of the LED light-emitting chip and the pads are connected based on bonding wires.

[0125] In summary, embodiment 5 of the present invention provides an LED display device, which adopts a window form on the pins on the surface of the driver IC chip, that is, increasing the number of signal input pins and signal output pins, from the conventional one signal input pin and one signal output pin to four signal input pins and four signal output pins, and two signal input pins and two signal output pins are respectively arranged on the left and right sides of the surface of the driver IC chip. Through different wire connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180° to each other, which effectively solves the problem of display color cast, has stronger versatility, lower manufacturing cost, and easier control of incoming material process, thereby improving the display consistency and display effect of the LED display module based on splicing.

[0126] Embodiment 6

[0127] Embodiment 6 of the present invention provides an LED display device, which includes a bracket, a driver IC chip and three LED light-emitting chips.

[0128] In an optional implementation of this embodiment, Fig.14 , Fig.15 and Fig.16 As shown, Fig.14 FIG. 1 shows a schematic diagram of the front structure of an LED display device in Embodiment 6 of the present invention. Fig.15 FIG. 1 shows an enlarged schematic diagram of the front structure of the LED display device in the sixth embodiment of the present invention. Fig.16 FIG. 1 shows a schematic diagram of the back structure of an LED display device in Embodiment 6 of the present invention. Fig.15 for Fig.14 Schematic diagram at point a in the middle.

[0129] It should be noted that the structure of the LED display device in the sixth embodiment is basically the same as that in the fifth embodiment, except that:

[0130] The first signal input pad 91 in the fifth embodiment is the first signal output pad 93 in the sixth embodiment;

[0131] The second signal input pad 92 in the fifth embodiment is the second signal output pad 94 in the sixth embodiment;

[0132] The first signal output pad 93 in the fifth embodiment is the first signal input pad 91 in the sixth embodiment;

[0133] The second signal output pad 94 in the fifth embodiment is the second signal input pad 92 in the sixth embodiment;

[0134] The first signal input pin 801 in the fifth embodiment is connected to the first signal input pad 91. In the sixth embodiment, the first signal input pin 801 is not connected to the first signal input pad 91, but the third signal input pin 803 is connected to the first signal input pad 91.

[0135] The second signal input pin 802 in the fifth embodiment is connected to the second signal input pad 92. In the sixth embodiment, the second signal input pin 802 is not connected to the second signal input pad 92, but the fourth signal input pin 804 is connected to the second signal input pad 92.

[0136] The first signal output pin 805 in the fifth embodiment is connected to the first signal output pad 93. In the sixth embodiment, the first signal output pin 805 is not connected to the first signal output pad 93, but the third signal output pin 807 is connected to the first signal output pad 93.

[0137] The second signal output pin 806 in the fifth embodiment is connected to the second signal output pad 94. In the sixth embodiment, the second signal output pin 806 is not connected to the second signal output pad 94, but the fourth signal output pin 808 is connected to the second signal output pad 94.

[0138] The first signal input pin 76 in the fifth embodiment is the first signal output pin 78 in the sixth embodiment;

[0139] The second signal input pin 77 in the fifth embodiment is the second signal output pin 79 in the sixth embodiment;

[0140] The first signal output pin 78 in the fifth embodiment is the first signal input pin 76 in the sixth embodiment;

[0141] The second signal output pin 79 in the fifth embodiment is the second signal input pin 77 in the sixth embodiment.

[0142] Except for the above differences, the rest of the structure of the LED display device in the sixth embodiment is completely consistent with the structure of the LED display device in the fifth embodiment, and will not be described in detail here.

[0143] In summary, embodiment six of the present invention provides an LED display device, which adopts a window form on the pins on the surface of the driver IC chip, that is, increasing the number of signal input pins and signal output pins, from the conventional one signal input pin and one signal output pin to four signal input pins and four signal output pins, and two signal input pins and two signal output pins are respectively arranged on the left and right sides of the surface of the driver IC chip. Through different wire connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180° to each other, which effectively solves the problem of display color cast, has stronger versatility, lower manufacturing cost, and easier control of incoming material process, thereby improving the display consistency and display effect of the LED display module based on splicing.

[0144] Embodiment 7

[0145] Embodiment 7 of the present invention provides an LED display module, which includes a plurality of first display modules and a plurality of second display modules, wherein the first display modules and the second display modules are formed by alternately splicing together, wherein the first display module is provided with a plurality of LED display devices described in Embodiment 1, and the second display module is provided with a plurality of LED display devices described in Embodiment 2.

[0146] In an optional implementation of this embodiment, Fig.17 As shown, Fig.17The schematic diagram of the splicing structure of the LED display module in the seventh embodiment of the present invention is shown, the three LED display devices on the left are LED display devices arranged on the first display module, which are the LED display devices in the first embodiment, the three LED display devices on the right are LED display devices arranged on the second display module, which are the LED display devices in the second embodiment, the first display module on the left and the second display module on the right are spliced ​​and formed, the mounting direction of the LED display devices on the first display module is consistent with the mounting direction of the LED display devices on the second display module, the power pins VDD of all LED display devices are connected in parallel, the ground pins GND are connected in parallel, the first signal output pin DO of the LED display device on the left side of the first display module is connected to the first signal input pin DI of the adjacent LED display device on the right side, the first signal input pin DI of the leftmost LED display device is connected to the signal driver, the first signal output pin DO of the LED display device on the right side of the second display module is connected to the first signal input pin DI of the adjacent LED display device on the left side, and the first signal input pin DI of the rightmost LED display device is connected to the signal driver.

[0147] To sum up, the LED display devices in the adjacent first display module and the second display module do not need to be mounted at 180°, which will not cause the arrangement order of the light-emitting chips of the LED display devices in the two display modules to change, nor will it cause the adjacent display color cast problems, poor display consistency, and poor display effect in the spliced ​​LED display panel.

[0148] In summary, embodiment seven of the present invention provides an LED display module, comprising a first display module and a second display module, the first display module is provided with the LED display device in embodiment one, and the second display module is provided with the LED display device in embodiment two, by adopting a windowing form on the pins on the surface of the driver IC chip, that is, increasing the number of signal input pins and signal output pins, from the conventional one signal input pin and one signal output pin to two signal input pins and two signal output pins, and providing a signal input pin and a signal output pin on each of the left and right sides of the surface of the driver IC chip, through different wiring connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180° to each other, effectively solving the display color cast problem, with stronger versatility, lower manufacturing cost, easier control of incoming material process, and improving the display consistency and display effect of the LED display module based on splicing.

[0149] Embodiment 8

[0150] Embodiment 8 of the present invention provides an LED display module, which includes a plurality of first display modules and a plurality of second display modules, wherein the first display modules and the second display modules are formed by alternately splicing together, wherein the first display module is provided with a plurality of LED display devices described in Embodiment 3, and the second display module is provided with a plurality of LED display devices described in Embodiment 4.

[0151] In an optional implementation of this embodiment, Fig.18 As shown, Fig.18 A schematic diagram of the splicing structure of the LED display modules in the eighth embodiment of the present invention is shown, the three LED display devices on the left are the LED display devices arranged on the first display module, which are the LED display devices in the third embodiment, the three LED display devices on the right are the LED display devices arranged on the second display module, which are the LED display devices in the fourth embodiment, the first display module on the left and the second display module on the right are spliced ​​and formed, the mounting direction of the LED display devices on the first display module is consistent with the mounting direction of the LED display devices on the second display module, the power pins VDD of all the LED display devices are connected in parallel, the ground pins GND are connected in parallel, the first signal output pin DO of the LED display device on the left side of the first display module is connected to the first signal output pin DO of the adjacent first LED display device on the right side A signal input pin DI0 is connected and connected to the second signal input pin DI1 of the second adjacent LED display device on the right, the first signal input pin DI0 of the leftmost LED display device is connected to the signal driver and connected to the second signal input pin DI1 of the first adjacent LED display device on the right, the first signal output pin DO of the LED display device on the right in the second display module is connected to the first signal input pin DI0 of the first adjacent LED display device on the left, and connected to the second signal input pin DI1 of the second adjacent LED display device on the left, the first signal input pin DI0 of the rightmost LED display device is connected to the signal driver and connected to the second signal input pin DI1 of the first adjacent LED display device on the left.

[0152] To sum up, the LED display devices in the adjacent first display module and the second display module do not need to be mounted at 180°, which will not cause the arrangement order of the light-emitting chips of the LED display devices in the two display modules to change, nor will it cause the adjacent display color cast problems, poor display consistency, and poor display effect in the spliced ​​LED display panel.

[0153] In summary, embodiment eight of the present invention provides an LED display module, including a first display module and a second display module, the first display module is provided with the LED display device in embodiment three, and the second display module is provided with the LED display device in embodiment four, by adopting a window form on the pins on the surface of the driver IC chip, that is, increasing the number of signal input pins and signal output pins, from the conventional one signal input pin and one signal output pin to three signal input pins and two signal output pins, and two signal input pins and one signal output pin are provided on the left side of the surface of the driver IC chip, and one signal input pin and one signal output pin are provided on the right side, through different wiring connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180° to each other, effectively solving the display color cast problem, with stronger versatility, lower manufacturing cost, easier control of incoming material process, and improving the display consistency and display effect of the LED display module based on splicing.

[0154] Embodiment 9

[0155] Embodiment 9 of the present invention provides an LED display module, which includes a plurality of first display modules and a plurality of second display modules, wherein the first display modules and the second display modules are formed by alternately splicing together, wherein the first display module is provided with a plurality of LED display devices described in embodiment 5, and the second display module is provided with a plurality of LED display devices described in embodiment 6.

[0156] In an optional implementation of this embodiment, Fig.19 As shown, Fig.19The schematic diagram of the splicing structure of the LED display module in the ninth embodiment of the present invention is shown. The three LED display devices on the left are LED display devices arranged on the first display module, which are the LED display devices in the fifth embodiment. The three LED display devices on the right are LED display devices arranged on the second display module, which are the LED display devices in the sixth embodiment. The first display module on the left and the second display module on the right are spliced ​​and formed. The mounting direction of the LED display device on the first display module is consistent with the mounting direction of the LED display device on the second display module. The power supply pins VDD of all LED display devices are connected in parallel, and the ground pins GND are connected in parallel. The first signal output pin DO0 of the LED display device on the left side of the first display module is connected to the adjacent LED display device on the right side. The first signal input pin DI0 of the LED display device on the left is connected, the second signal output pin DO1 of the LED display device on the right is connected to the second signal input pin DI1 of the adjacent LED display device on the right, the first signal input pin DI0 and the second signal input pin DI1 of the leftmost LED display device are connected to the signal driver, the first signal output pin DO0 of the LED display device on the right in the second display module is connected to the first signal input pin DI0 of the adjacent LED display device on the left, the second signal output pin DO1 of the LED display device on the right is connected to the second signal input pin DI1 of the adjacent LED display device on the left, and the first signal input pin DI0 and the second signal input pin DI1 of the rightmost LED display device are connected to the signal driver.

[0157] To sum up, the LED display devices in the adjacent first display module and the second display module do not need to be mounted at 180°, which will not cause the arrangement order of the light-emitting chips of the LED display devices in the two display modules to change, nor will it cause the adjacent display color cast problems, poor display consistency, and poor display effect in the spliced ​​LED display panel.

[0158] In summary, embodiment nine of the present invention provides an LED display module, including a first display module and a second display module, the first display module is provided with the LED display device in embodiment five, and the second display module is provided with the LED display device in embodiment six, by adopting a window form on the pins on the surface of the driver IC chip, that is, increasing the number of signal input pins and signal output pins, from the conventional one signal input pin and one signal output pin to four signal input pins and four signal output pins, and two signal input pins and two signal output pins are respectively provided on the left and right sides of the surface of the driver IC chip, through different wire connection methods, adjacent spliced ​​LED display modules do not need to be mounted at 180° to each other, effectively solving the display color cast problem, with stronger versatility, lower manufacturing cost, easier control of incoming material process, and improving the display consistency and display effect of the LED display module based on splicing.

[0159] The above is a detailed introduction to an LED display device and an LED display module provided by the present invention. A person skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium may include: a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0160] In addition, the embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An LED display device, characterized in that: The LED display device comprises a bracket, a driver IC chip and three LED light-emitting chips, the bracket is provided with a plurality of pads, the driver IC chip and the three LED light-emitting chips are all provided on the plurality of pads, and the plurality of pads are connected to the first electrodes of the three LED light-emitting chips correspondingly; The surface of the driver IC chip is provided with a plurality of pins, and the plurality of pins are correspondingly connected to the plurality of pads and the second electrodes of the three LED light-emitting chips; The plurality of pins include more than two signal input pins and more than two signal output pins, wherein one or more signal input pins and one or more signal output pins are arranged on one side of the surface of the driver IC chip, and one or more signal input pins and one or more signal output pins are arranged on the other side of the surface of the driver IC chip.

2. The LED display device according to claim 1, characterized in that: The plurality of pins further include a power pin, a ground pin, and three LED light emitting chip control pins. The three LED light emitting chip control pins are respectively connected to the second electrodes of the three LED light emitting chips in a one-to-one correspondence.

3. The LED display device according to claim 2, characterized in that: The plurality of pads include more than one signal input pad, more than one signal output pad, a power pad and a ground pad. The signal input pad is connected to the signal input pin accordingly, the signal output pad is connected to the signal output pin accordingly, the power pad is connected to the power pin, the ground pad is connected to the ground pin, and the power pad is connected to the first electrodes of three LED light-emitting chips accordingly.

4. The LED display device according to claim 3, characterized in that: The bracket also includes a plurality of pins, including one or more signal input pins, one or more signal output pins, a power pin and a ground pin. The signal input pin is connected to the signal input pad accordingly, the signal output pin is connected to the signal output pad accordingly, the power pin is connected to the power pad, and the ground pin is connected to the ground pad.

5. The LED display device according to claim 4, characterized in that: The plurality of pins include two signal input pins and two signal output pins; The plurality of pads include a signal input pad and a signal output pad; The plurality of pins include a signal input pin and a signal output pin.

6. The LED display device according to claim 5, characterized in that: One of the signal input pins and one of the signal output pins are located on one side of the surface of the driver IC chip, and one of the signal input pins and one of the signal output pins are located on the other side of the surface of the driver IC chip.

7. The LED display device according to claim 4, characterized in that: The plurality of pins include three signal input pins and two signal output pins; The plurality of pads include two signal input pads and one signal output pad; The plurality of pins include two signal input pins and one signal output pin.

8. The LED display device according to claim 7, characterized in that: The two signal input pins and the one signal output pin are located on one side of the surface of the driver IC chip, and the one signal input pin and the one signal output pin are located on the other side of the surface of the driver IC chip.

9. The LED display device according to claim 4, characterized in that: The plurality of pins include four signal input pins and four signal output pins; The plurality of pads include two signal input pads and two signal output pads; The plurality of pins include two signal input pins and two signal output pins.

10. The LED display device according to claim 9, characterized in that: The two signal input pins and the two signal output pins are located on one side of the surface of the driver IC chip, and the two signal input pins and the two signal output pins are located on the other side of the surface of the driver IC chip.

11. The LED display device according to claim 4, characterized in that: The plurality of pins also include spare pins.

12. The LED display device according to claim 11, characterized in that: The plurality of pads further include spare pads, the plurality of pins further include spare pins, and the spare pins, spare pads, and spare pins are connected to each other.

13. The LED display device according to claim 3, characterized in that: The three LED light-emitting chips include a red LED light-emitting chip, a green LED light-emitting chip and a blue LED light-emitting chip.

14. The LED display device according to claim 13, characterized in that: The red LED light emitting chip is arranged on the power supply pad.

15. An LED display module, characterized in that: The LED display module includes a plurality of first display modules and a plurality of second display modules, the first display modules and the second display modules are formed by alternately splicing together, the first display module is provided with a plurality of LED display devices as described in any one of claims 1 to 14, and the second display module is provided with a plurality of LED display devices as described in any one of claims 1 to 14.

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