LED display module

Abstract

The present invention discloses an LED display module, comprising one or more LED display devices with built-in driver IC chips and one or more LED display devices without built-in driver IC chips; the common electrode pins of the LED display devices with built-in driver IC chips are correspondingly connected to the common electrode pins of the LED display devices without built-in driver IC chips; and / or the LED light-emitting chip control pins of the LED display devices with built-in driver IC chips are correspondingly connected to the LED light-emitting chip control pins of the LED display devices without built-in driver IC chips. By correspondingly connecting the common electrode pins and LED light-emitting chip control pins of the LED display devices with built-in driver IC chips and the LED display devices without built-in driver IC chips, the present invention enables the LED display module to simultaneously take into account the two advantages of static driving and scanning driving in the integrated packaging of built-in driver IC chips, thereby improving market competitiveness.

Description

Technical Field

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

[0002] At present, LED display modules are mainly divided into two modes. The first is that an external row and column driver IC chip drives the LED light-emitting chip through a scanning drive mode to achieve the display effect. In this mode, the LED light-emitting chip and the driver IC chip are separately packaged, the packaging cost is high, and the external driver IC chip is easily affected by the external environment and has poor reliability. The second is an LED display device using a built-in driver IC chip. The driver IC chip drives the LED light-emitting chip through a static drive mode to achieve the display effect. In this mode, the driver IC chip is used in large quantities, the cost is high, and it is difficult to achieve industrialization. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art. The present invention provides an LED display module, which is simultaneously provided with an LED display device with a built-in driver IC chip and an LED display device without a built-in driver IC chip, and the common pole pin and LED light-emitting chip control pin of the LED display device with a built-in driver IC chip and the common pole pin and LED light-emitting chip control pin of the LED display device without a built-in driver IC chip are correspondingly connected, so that the LED display module can take into account the two major advantages of static driving and scanning driving of the integrated packaging of the built-in driver IC chip, thereby improving market competitiveness.

[0004] The present invention provides an LED display device, comprising at least one LED display device with a built-in driver IC chip and at least one LED display device without a built-in driver IC chip;

[0005] The common electrode pin of the LED display device with a built-in driver IC chip is connected to the common electrode pin of the LED display device without a built-in driver IC chip; and / or

[0006] The LED light emitting chip control pins of the LED display device with a built-in driver IC chip are correspondingly connected to the LED light emitting chip control pins of the LED display device without a built-in driver IC chip.

[0007] Furthermore, each of the one or more LED display devices with built-in driver IC chips includes a circuit substrate, a driver IC chip, and one or more LED light-emitting chips;

[0008] The circuit substrate includes a first surface and a second surface, the first surface and the second surface are arranged opposite to each other, and the driver IC chip and the one or more LED light-emitting chips are arranged on the first surface of the circuit substrate;

[0009] The driver IC chip includes one or more common electrode pins and one or more groups of LED light emitting chip control pins, and each group of LED light emitting chip control pins includes three LED light emitting chip control pins;

[0010] The second surface of the circuit substrate is provided with one or more common electrode pins and one or more groups of LED light emitting chip control pins, and each group of LED light emitting chip control pins includes three LED light emitting chip control pins;

[0011] The common electrode pins are electrically connected to the common electrode pins, and the LED light-emitting chip control pins are electrically connected to the LED light-emitting chip control pins.

[0012] Furthermore, the driver IC chip further includes a data input pin, a data output pin, one or more power pins, and a power ground pin;

[0013] The second surface of the circuit substrate is also provided with a data input pin, a data output pin, one or more power pins, and a power ground pin;

[0014] The data input pin is electrically connected to the data input pin, the data output pin is electrically connected to the data output pin, the power pin is electrically connected to the power pin correspondingly, and the power ground pin is electrically connected to the power ground pin.

[0015] Furthermore, each group of the LED light-emitting chips includes three LED light-emitting chips, and each of the LED light-emitting chips includes a first electrode and a second electrode;

[0016] The LED light emitting chip control pin is electrically connected to the first electrode of the corresponding LED light emitting chip on the first surface of the circuit substrate;

[0017] The second electrodes of the three LED light-emitting chips in the same group of LED light-emitting chips are connected in parallel and electrically connected to the corresponding common electrode pins.

[0018] Furthermore, each group of LED light emitting chip control pins includes a red tube LED light emitting chip control pin, a green tube LED light emitting chip control pin, and a blue tube LED light emitting chip control pin;

[0019] Each group of LED light-emitting chips includes a red tube LED light-emitting chip, a green tube LED light-emitting chip, and a blue tube LED light-emitting chip;

[0020] Each group of LED light emitting chip control pins includes a red tube LED light emitting chip control pin, a green tube LED light emitting chip control pin, and a blue tube LED light emitting chip control pin.

[0021] Furthermore, the driver IC chip and the LED light-emitting chip are arranged on the first surface of the circuit substrate in a face-up structure or a flip-down structure;

[0022] The first electrode and the second electrode of the LED light-emitting chip in the upright structure are located on the light-emitting surface of the LED light-emitting chip, and the first electrode and the second electrode of the LED light-emitting chip in the flip-chip structure are located on the backlight surface of the LED light-emitting chip.

[0023] Furthermore, when the driver IC chip and the LED light-emitting chip are arranged in a vertical structure on the first surface of the circuit substrate, a plurality of intermediate pads and a plurality of connecting lines are arranged on the first surface of the circuit substrate, the LED light-emitting chip control pin is electrically connected to the first electrode of the LED light-emitting chip based on the intermediate pad and the connecting line, the second electrode of the LED light-emitting chip is electrically connected to the common electrode pin based on the intermediate pad and the connecting line, the data input pin is electrically connected to the data input pin based on the intermediate pad and the connecting line, the data output pin is electrically connected to the data output pin based on the intermediate pad and the connecting line, and the power ground pin is electrically connected to the power ground pin based on the intermediate pad and the connecting line.

[0024] Furthermore, when the driver IC chip and the LED light-emitting chip are arranged in a flip-chip structure on the first surface of the circuit substrate, all pins of the driver IC chip, the first electrode and the second electrode of the LED light-emitting chip, and all pins arranged on the second surface of the circuit substrate are electrically connected based on the electrical connection parts arranged on the circuit substrate.

[0025] Furthermore, each of the one or more LED display devices without a built-in driver IC chip includes one or more common electrode pins and one or more LED light-emitting chip control pins.

[0026] Furthermore, the LED display module includes: an LED display device with a built-in driver IC chip and an LED display device without a built-in driver IC chip;

[0027] The data input pin of the LED display device with a built-in driver IC chip is used to receive a driving signal from a processor;

[0028] The common electrode pin of the LED display device with a built-in driver IC chip is connected to the common electrode pin of the LED display device without a built-in driver IC chip;

[0029] The LED light emitting chip control pins of the LED display device with a built-in driver IC chip are correspondingly connected to the LED light emitting chip control pins of the LED display device without a built-in driver IC chip.

[0030] Furthermore, the LED display module includes: an LED display device with a built-in driver IC chip and a plurality of LED display devices without a built-in driver IC chip;

[0031] The data input pin of the LED display device with a built-in driver IC chip is used to receive a driving signal from a processor;

[0032] The common electrode pin of the LED display device with a built-in driver IC chip is connected to the common electrode pins of the plurality of LED display devices without a built-in driver IC chip; and / or

[0033] The LED light emitting chip control pins of the LED display device with a built-in driver IC chip are correspondingly connected to the LED light emitting chip control pins of the plurality of LED display devices without a built-in driver IC chip.

[0034] Furthermore, the LED display module includes: a plurality of LED display devices with built-in driver IC chips and a plurality of LED display devices without built-in driver IC chips, wherein the plurality of LED display devices with built-in driver IC chips and the plurality of LED display devices without built-in driver IC chips form an M*N rectangular array, wherein:

[0035] The plurality of LED display devices with built-in driver IC chips are arranged along a first preset direction, where the first preset direction is an M-row direction or an N-column direction; a data input pin of a first LED display device with a built-in driver IC chip among the plurality of LED display devices with built-in driver IC chips is used to receive a driving signal from a processor; and between adjacent LED display devices with built-in driver IC chips arranged along the first preset direction, starting from the first LED display device with built-in driver IC chip, a data output pin of the LED display device with a built-in driver IC chip of a starting point among two adjacent LED display devices with built-in driver IC chips is connected to a data input pin of the LED display device with a built-in driver IC chip of the starting point;

[0036] The plurality of LED display devices without built-in driver IC chips are arranged on one side of the plurality of LED display devices with built-in driver IC chips along a second preset direction, and the second preset direction is orthogonal to the first preset direction;

[0037] Each of the plurality of LED display devices without a built-in driver IC chip comprises one or more common electrode pins and one or more LED light-emitting chip control pins;

[0038] The common electrode pin of each LED display device with a built-in driver IC chip among the plurality of LED display devices with a built-in driver IC chip is correspondingly connected to the common electrode pins of the plurality of LED display devices without a built-in driver IC chip in the second preset direction; and / or

[0039] The LED light emitting chip control pin of each LED display device with a built-in driver IC chip among the several LED display devices with built-in driver IC chips is correspondingly connected to the LED light emitting chip control pins of multiple LED display devices without built-in driver IC chips in the second preset direction.

[0040] Furthermore, the LED display module includes: a plurality of LED display devices with built-in driver IC chips and a plurality of LED display devices without built-in driver IC chips, wherein the plurality of LED display devices with built-in driver IC chips and the plurality of LED display devices without built-in driver IC chips form an M*N rectangular array, wherein:

[0041] M LED display devices with built-in driver IC chips among the plurality of LED display devices with built-in driver IC chips are arranged along a first preset direction, and N LED display devices with built-in driver IC chips among the plurality of LED display devices with built-in driver IC chips are arranged along a second preset direction, and the first preset direction and the second preset direction are arranged orthogonally;

[0042] Each of the plurality of LED display devices without a built-in driver IC chip comprises one or more common electrode pins and one or more LED light-emitting chip control pins;

[0043] The driving signal of the processor is received at a data input pin of an LED display device with a built-in driver IC chip at an orthogonal point between the first preset direction and the second preset direction. Between adjacent LED display devices with built-in driver IC chips arranged along the first preset direction, starting from the LED display device with built-in driver IC chips at the orthogonal point, the data output pin of the LED display device with built-in driver IC chips at the starting point among two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with built-in driver IC chips at the starting point.

[0044] In a second preset direction, a data input pin of an LED display device with a built-in driver IC chip adjacent to an orthogonal point receives a driving signal from the processor, and between adjacent LED display devices with built-in driver IC chips arranged along the second preset direction, starting from the LED display device with a built-in driver IC chip adjacent to the orthogonal point, a data output pin of the LED display device with a built-in driver IC chip at the starting point among two adjacent LED display devices with built-in driver IC chips is connected to a data input pin of the LED display device with a built-in driver IC chip at the starting point;

[0045] The common electrode pin of each LED display device with a built-in driver IC chip arranged in the second preset direction is correspondingly connected to the common electrode pins of multiple LED display devices without a built-in driver IC chip arranged in the first preset direction; and / or

[0046] The LED light emitting chip control pins of each LED display device with a built-in driver IC chip arranged in the first preset direction are correspondingly connected to the LED light emitting chip control pins of multiple LED display devices without built-in driver IC chips in the second preset direction.

[0047] Furthermore, the first preset direction includes a first positive direction and a first negative direction, and the second preset direction includes a second positive direction and a second negative direction;

[0048] The driving signal of the processor is received at a data input pin of an LED display device with a built-in driver IC chip at a point where the first preset direction and the second preset direction intersect. Between adjacent LED display devices with built-in driver IC chips arranged along the first positive direction, starting from the LED display device with built-in driver IC chips at the point where the first preset direction intersects, the data output pin of the LED display device with built-in driver IC chips at the starting point among two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with built-in driver IC chips at the starting point.

[0049] Between adjacent LED display devices with built-in driver IC chips arranged along the first negative direction, starting from the LED display device with built-in driver IC chips adjacent to the orthogonal point, the data output pin of the LED display device with built-in driver IC chips at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with built-in driver IC chips at the starting point;

[0050] In the second positive direction, the data input pin of the LED display device with a built-in driver IC chip adjacent to the orthogonal point receives the driving signal of the processor, and between the adjacent LED display devices with built-in driver IC chips arranged along the second positive direction, starting from the LED display device with a built-in driver IC chip adjacent to the orthogonal point, the data output pin of the LED display device with a built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with a built-in driver IC chip at the starting point;

[0051] In the second negative direction, the data input pin of the LED display device with a built-in driver IC chip adjacent to the orthogonal point receives the driving signal of the processor, and between the adjacent LED display devices with built-in driver IC chips arranged along the second negative direction, starting from the LED display device with a built-in driver IC chip adjacent to the orthogonal point, the data output pin of the LED display device with a built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with a built-in driver IC chip at the starting point.

[0052] The LED display module provided by the present invention is provided with one or more LED display devices with built-in driver IC chips and one or more LED display devices without built-in driver IC chips. The common electrode pins and LED light-emitting chip control pins of the LED display devices with built-in driver IC chips are correspondingly connected with the common electrode pins and LED light-emitting chip control pins of the LED display devices without built-in driver IC chips. This enables the LED display module to simultaneously take into account the two major advantages of static driving and scanning driving of the integrated package of built-in driver IC chips, thereby improving market competitiveness. The number of LED display devices with built-in driver IC chips and LED display devices without built-in driver IC chips can be flexibly selected according to needs to design a suitable LED display module. The simultaneous use of LED display devices with built-in driver IC chips and LED display devices without built-in driver IC chips can reduce costs while improving product performance. The LED display device with built-in driver IC chips integrates the driver IC chip and the LED light-emitting chip into a simple design structure, which can effectively improve display performance and the protection capability of the driver IC chip. According to actual needs, multiple LED light-emitting chips can be driven by one driver IC chip, and a face-up or flip-chip, common cathode or common anode structure can be selected. A circuit substrate can be shared, reducing production costs, and having high flexibility, high reliability, and high application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0054] Figure 1 This is a schematic diagram of the front structure of the LED display device in Example 1 of the present invention;

[0055] Figure 2 1 is a schematic diagram of the back structure of the LED display device in Example 1 of the present invention;

[0056] Figure 3 This is a schematic diagram of the principle of the driver IC chip in the first embodiment of the present invention;

[0057] Figure 4 This is a schematic diagram of the connection principle of the LED light-emitting chip in the first embodiment of the present invention;

[0058] Figure 5 This is a schematic diagram of the back pins of the LED display device in Example 1 of the present invention;

[0059] Figure 6 This is a schematic diagram of the front structure of the LED display device in the second embodiment of the present invention;

[0060] Figure 7 2 is a schematic diagram of the back structure of the LED display device in the second embodiment of the present invention;

[0061] Figure 8 Schematic diagram of the structure of the driver IC chip in the second embodiment of the present invention;

[0062] Figure 9 This is a schematic diagram of the connection principle of the LED light-emitting chip in the second embodiment of the present invention;

[0063] Figure 10 This is a schematic diagram of the back pins of the LED display device in the second embodiment of the present invention;

[0064] Figure 11 A schematic diagram of the structure of an LED display module in a third embodiment of the present invention;

[0065] Figure 12 A schematic structural diagram of an LED display module in a fourth embodiment of the present invention;

[0066] Figure 13 A schematic diagram of the structure of an LED display module in a fifth embodiment of the present invention;

[0067] Figure 14A schematic diagram of the structure of an LED display module in a sixth embodiment of the present invention;

[0068] Figure 15 Schematic diagram of the structure of the LED display module in Example 7 of the present invention. DETAILED DESCRIPTION

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0070] In the present invention, it should be understood that terms such as "include" or "have" are intended to indicate the presence of features, numbers, steps, behaviors, components, parts or their combinations disclosed in this specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts or their combinations exist or are added.

[0071] 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.

[0072] Example 1

[0073] In an optional implementation of this embodiment, as Figure 1 and Figure 2 As shown, Figure 1 FIG2 shows a schematic diagram of the front structure of an LED display device with a built-in driver IC chip in the first embodiment of the present invention. Figure 2 The back structure diagram of the LED display device with built-in driver IC chip in the first embodiment of the present invention is shown, wherein the LED display device with built-in driver IC chip includes a circuit substrate 1, a driver IC chip 2, and four groups of LED light-emitting chips.

[0074] In an optional implementation of this embodiment, the circuit substrate 1 includes a first surface and a second surface, the first surface and the second surface are arranged opposite to each other, and the driver IC chip 2 and the four groups of LED light-emitting chips are arranged on the first surface of the circuit substrate 1.

[0075] In an optional implementation of this embodiment, the driver IC chip 2 includes a data input pin, a data output pin, a red tube power pin, a blue-green tube power pin, a power ground pin, four common electrode pins, and four groups of LED light-emitting chip control pins. Each group of LED light-emitting chip control pins includes three LED light-emitting chip control pins, namely, a red tube LED light-emitting chip control pin, a green tube LED light-emitting chip control pin, and a blue tube LED light-emitting chip control pin.

[0076] In an optional implementation of this embodiment, the driver IC chip 2 is disposed on the first surface of the circuit substrate 1 in a flip-chip structure.

[0077] Specifically, such as Figure 3 As shown, Figure 3 The schematic diagram of the principle of the driver IC chip in the first embodiment of the present invention is shown. The driver IC chip in this embodiment is provided with 21 pins, including a data input pin SDI, a data output pin SDO, a red tube power pin VDDR, a blue and green tube power pin VDDGB, a power ground pin GND, four common electrode pins (rgb0-, rgb1-, rgb2-, rgb3-), and four groups of LED light-emitting chip control pins (R0+, G0+, B0+; R1+, G1+, B1+; R2+, G2+, B2+; R3+, G3+, B3+), wherein the common electrode pins include a first common electrode pin rgb0-, a second common electrode pin rgb1-, and a third common electrode pin rgb0-. Pin RGB2-, the fourth common electrode pin RGB3-, the four groups of LED light-emitting chip control pins include the first group of LED light-emitting chip control pins R0+, G0+, B0+; the second group of LED light-emitting chip control pins R1+, G1+, B1+; the third group of LED light-emitting chip control pins R2+, G2+, B2+; the fourth group of LED light-emitting chip control pins R3+, G3+, B3+, the first group of LED light-emitting chip control pins include the first red tube LED light-emitting chip control pin R0+, the first green tube LED light-emitting chip control pin G0+, the first blue tube LED light-emitting chip control pin B0+, the second, third, and fourth groups of LED light-emitting chip control pins and so on, Figure 3 The pin positions of the driver IC chip shown in Figure 1 The pin positions of the driver IC chip 2 shown in FIG correspond one to one.

[0078] In an optional implementation of this embodiment, four groups of LED light-emitting chips are provided on the LED display device, each group of LED light-emitting chips includes three LED light-emitting chips, namely a red tube LED light-emitting chip, a green tube LED light-emitting chip, and a blue tube LED light-emitting chip, and each LED light-emitting chip includes a first electrode and a second electrode.

[0079] Specifically, the four groups of LED light-emitting chips include a first group of LED light-emitting chips, a second group of LED light-emitting chips, a third group of LED light-emitting chips, and a fourth group of LED light-emitting chips. The first group of LED light-emitting chips includes a first red tube LED light-emitting chip, a first green tube LED light-emitting chip, and a first blue tube LED light-emitting chip. The second, third, and fourth groups of LED light-emitting chips are similar.

[0080] In an optional implementation of this embodiment, the first electrode of each LED light-emitting chip is a positive electrode, and the second electrode is a negative electrode.

[0081] It should be noted that each of the LED light-emitting chips is disposed on the first surface of the circuit substrate 1 in a flip-chip structure, and the first electrode and the second electrode of each of the LED light-emitting chips are located on the backlight surface of the LED light-emitting chip.

[0082] In an optional implementation of this embodiment, the LED light-emitting chip control pin is electrically connected to the first electrode of the corresponding LED light-emitting chip on the first surface of the circuit substrate 1 .

[0083] Specifically, such as Figure 4 As shown, Figure 4 This is a schematic diagram of the connection principle of the LED light-emitting chip in the first embodiment of the present invention. Taking the first group of LED light-emitting chip control pins and the first group of LED light-emitting chips as an example, the control pin R0+ of the first red tube LED light-emitting chip is electrically connected to the positive electrode of the first red tube LED light-emitting chip, the control pin G0+ of the first green tube LED light-emitting chip is electrically connected to the positive electrode of the first green tube LED light-emitting chip, and the control pin B0+ of the first blue tube LED light-emitting chip is electrically connected to the positive electrode of the first blue tube LED light-emitting chip. Figure 4 As shown, the connection relationship between the control pins of the remaining three groups of LED light-emitting chips and the remaining three groups of LED light-emitting chips is the same as that of the first group, and will not be repeated here.

[0084] In an optional implementation of this embodiment, the second electrodes of the three LED light-emitting chips in the same group of LED light-emitting chips are connected in parallel and electrically connected to the corresponding common electrode pins.

[0085] Specifically, such as Figure 4 As shown, taking the first group of LED light-emitting chips and the first common electrode pin as an example, the cathode of the first red tube LED light-emitting chip, the cathode of the first green tube LED light-emitting chip, and the cathode of the first blue tube LED light-emitting chip are connected in parallel and electrically connected to the first common electrode pin rgb0-. Figure 4 As shown, the connection relationship between the remaining three groups of LED light-emitting chips and the remaining three common electrode pins is the same as the first group, and will not be repeated here.

[0086] In an optional implementation of this embodiment, as Figure 5 As shown, Figure 5 The back pin diagram of the LED display device in the first embodiment of the present invention is shown. In this embodiment, there are 21 pins arranged on the second surface of the circuit substrate 1, including a data input pin SDI, a data output pin SDO, a red tube power pin VDDR, a blue and green tube power pin VDDGB, a power ground pin GND, four common electrode pins (rgb0-, rgb1-, rgb2-, rgb3-), and four groups of LED light-emitting chip control pins (R0+, G0+, B0+; R1+, G1+, B1+; R2+, G2+, B2+; R3+, G3+, B3+). The common electrode pins include a first common electrode pin rgb0-, a second common electrode pin rgb1-, and a third common electrode pin rgb0-. Common electrode pin rgb2-, fourth common electrode pin rgb3-, the four groups of LED light-emitting chip control pins include the first group of LED light-emitting chip control pins R0+, G0+, B0+; the second group of LED light-emitting chip control pins R1+, G1+, B1+; the third group of LED light-emitting chip control pins R2+, G2+, B2+; the fourth group of LED light-emitting chip control pins R3+, G3+, B3+, the first group of LED light-emitting chip control pins include the first red tube LED light-emitting chip control pin R0+, the first green tube LED light-emitting chip control pin G0+, the first blue tube LED light-emitting chip control pin B0+, the second, third, and fourth groups of LED light-emitting chip control pins and so on.

[0087] In an optional implementation of this embodiment, the data input pin SDI is electrically connected to the data input pin SDI, the data output pin SDO is electrically connected to the data output pin SOD, the red tube power pin VDDR is electrically connected to the red tube power pin VDDR, the blue-green tube power pin VDDGB is electrically connected to the blue-green tube power pin VDDGB, and the power ground pin GND is electrically connected to the power ground pin GND.

[0088] More importantly, the common pole pins (rgb0-, rgb1-, rgb2-, rgb3-) are electrically connected to the common pole pins (rgb0-, rgb1-, rgb2-, rgb3-), that is, the first common pole pin rgb0- is electrically connected to the first common pole pin rgb0-, the second common pole pin rgb1- is electrically connected to the second common pole pin rgb1-, the third common pole pin rgb2- is electrically connected to the third common pole pin rgb2-, and the fourth common pole pin rgb3- is electrically connected to the fourth common pole pin rgb3-.

[0089] More importantly, the LED light-emitting chip control pins are electrically connected to the corresponding LED light-emitting chip control pins. Taking the first group of LED light-emitting chip control pins and the first group of LED light-emitting chip control pins as an example, the first red tube LED light-emitting chip control pin R0+ is electrically connected to the first red tube LED light-emitting chip control pin R0+, the first green tube LED light-emitting chip control pin G0+ is electrically connected to the first green tube LED light-emitting chip control pin G0+, and the first blue tube LED light-emitting chip control pin B0+ is electrically connected to the first blue tube LED light-emitting chip control pin B0+. The connection relationship between the remaining three groups of LED light-emitting chip control pins and the remaining three groups of LED light-emitting chip control pins is the same as the first group, and they will not be repeated here.

[0090] It should be noted that, in this embodiment, all pins of the driver IC chip 2, the first electrode and the second electrode of the LED light-emitting chip, and all pins arranged on the second surface of the circuit substrate are electrically connected based on the electrical connection parts arranged on the circuit substrate.

[0091] In an optional implementation of this embodiment, when the driver IC chip 2 and the LED light-emitting chip are arranged in a positive structure on the first surface of the circuit substrate 1, and the first electrode of each LED light-emitting chip is a positive electrode and the second electrode is a negative electrode, a plurality of intermediate pads and a plurality of connecting lines are provided on the first surface of the circuit substrate 1, the LED light-emitting chip control pin is electrically connected to the first electrode of the LED light-emitting chip based on the intermediate pad and the connecting line, the second electrode of the LED light-emitting chip is electrically connected to the common electrode pin based on the intermediate pad and the connecting line, the data input pin is electrically connected to the data input pin based on the intermediate pad and the connecting line, the data output pin is electrically connected to the data output pin based on the intermediate pad and the connecting line, and the power ground pin is electrically connected to the power ground pin based on the intermediate pad and the connecting line.

[0092] In an optional implementation of this embodiment, when the driver IC chip 2 and the LED light-emitting chip are arranged in a flip-chip structure on the first surface of the circuit substrate 1, and the first electrode of each of the LED light-emitting chips is a negative electrode and the second electrode is a positive electrode, the red tube power pin and the blue-green tube power pin in the driver IC chip 2 are replaced with a main power pin, and the red tube power pin and the blue-green tube power pin on the second surface of the circuit substrate 1 are replaced with a main power pin, and the main power pin is electrically connected to the main power pin accordingly.

[0093] In an optional implementation of this embodiment, when the driver IC chip 2 and the LED light-emitting chip are arranged in a positive structure on the first surface of the circuit substrate 1, and the first electrode of each of the LED light-emitting chips is a negative electrode and the second electrode is a positive electrode, the red tube power pin and the blue-green tube power pin in the driver IC chip 2 are replaced with a main power pin, and the red tube power pin and the blue-green tube power pin on the second surface of the circuit substrate 1 are replaced with a main power pin. Several intermediate pads and several connecting wires are arranged on the first surface of the circuit substrate 1, and all pins of the driver IC chip 2, the first electrode and the second electrode of the LED light-emitting chip, and all pins arranged on the second surface of the circuit substrate are electrically connected based on the electrical connection part arranged on the circuit substrate.

[0094] It should be noted that the above content can refer to the patent content related to this patent.

[0095] In summary, an LED display device is provided in embodiment 1 of the present invention, wherein a common electrode pin is arranged on the driver IC chip, which is connected to the common electrode of the LED light-emitting chip and is connected to the common electrode pin arranged on the second surface of the circuit substrate, so that the LED display panel using the LED display device can simultaneously take into account the two major advantages of static driving and scanning driving of the built-in driver IC chip integrated package, with low power consumption and improved market competitiveness; the LED display device integrates and packages the driver IC chip and the LED light-emitting chip, with a simple design structure, which can effectively improve the display performance and the protection capability of the driver IC chip; multiple LED light-emitting chips can be driven by one driver IC chip, which reduces the production cost and has high reliability; different structures such as flip-chip common cathode, face-up common cathode, flip-chip common anode, and face-up common anode can be selected according to actual needs, and all of them can share the circuit substrate, with high flexibility and high application value.

[0096] Example 2

[0097] In an optional implementation of this embodiment, as Figure 6 and Figure 7 As shown, Figure 6 FIG. 2 shows a schematic diagram of the front structure of an LED display device in a second embodiment of the present invention. Figure 7 The back structure diagram of the LED display device in the second embodiment of the present invention is shown, wherein the LED display device includes a circuit substrate 1, a driver IC chip 2, and a group of LED light-emitting chips.

[0098] In an optional implementation of this embodiment, the circuit substrate 1 includes a first surface and a second surface, the first surface and the second surface are arranged opposite to each other, and the driver IC chip 2 and the group of LED light-emitting chips are arranged on the first surface of the circuit substrate 1.

[0099] In an optional implementation of this embodiment, the driver IC chip 2 includes a data input pin, a data output pin, a red tube power pin, a blue-green tube power pin, a power ground pin, two common electrode pins, and two groups of LED light-emitting chip control pins. Each group of LED light-emitting chip control pins includes three LED light-emitting chip control pins, namely, a red tube LED light-emitting chip control pin, a green tube LED light-emitting chip control pin, and a blue tube LED light-emitting chip control pin.

[0100] In an optional implementation of this embodiment, as Figure 8 As shown, Figure 8 The schematic diagram of the structure of the driver IC chip in the second embodiment of the present invention is shown. In this embodiment, the driver IC chip 2 is provided with 13 pins, including a data input pin SDI, a data output pin SDO, a red tube power pin VDDR, a blue and green tube power pin VDDGB, a power ground pin GND, two common electrode pins (rgb0-, rgb1-), and two groups of LED light-emitting chip control pins (R0+, G0+, B0+; R1+, G1+, B1+). The common electrode pins include a first common electrode pin r gb0-, the second common electrode pin rgb1-, the two groups of LED light-emitting chip control pins include the first group of LED light-emitting chip control pins R0+, G0+, B0+; the second group of LED light-emitting chip control pins R1+, G1+, B1+, the first group of LED light-emitting chip control pins include the first red tube LED light-emitting chip control pin R0+, the first green tube LED light-emitting chip control pin G0+, the first blue tube LED light-emitting chip control pin B0+, and the second group of LED light-emitting chip control pins and so on.

[0101] It should be noted that Figure 8 The pin positions of the driver IC chip shown in Figure 6 The pin positions of the driver IC chip 2 correspond one to one.

[0102] In an optional implementation of this embodiment, a group of LED light-emitting chips is provided on the LED display device, and each group of LED light-emitting chips includes three LED light-emitting chips, namely a red tube LED light-emitting chip, a green tube LED light-emitting chip, and a blue tube LED light-emitting chip, and each LED light-emitting chip includes a first electrode and a second electrode.

[0103] In an optional implementation of this embodiment, the first electrode of each LED light-emitting chip is a positive electrode, and the second electrode is a negative electrode.

[0104] In an optional implementation of this embodiment, the driver IC chip 2 and the LED light-emitting chip can be selected to be arranged in a face-up structure or a flip-chip structure on the first surface of the circuit substrate 1 according to actual conditions, wherein the first electrode and the second electrode of the LED light-emitting chip in the face-up structure are located on the light-emitting surface of the LED light-emitting chip, and the first electrode and the second electrode of the LED light-emitting chip in the flip-chip structure are located on the backlight surface of the LED light-emitting chip.

[0105] In an optional implementation of this embodiment, the LED light emitting chip control pin is electrically connected to the first electrode of the corresponding LED light chip on the first surface of the circuit substrate 1 .

[0106] Specifically, such as Figure 9 As shown, Figure 9 This is a schematic diagram of the connection principle of the LED light-emitting chip in Example 2 of the present invention. The control pin R0+ of the first red tube LED light-emitting chip is electrically connected to the anode of the first red tube LED light-emitting chip, the control pin G0+ of the first green tube LED light-emitting chip is electrically connected to the anode of the first green tube LED light-emitting chip, and the control pin B0+ of the first blue tube LED light-emitting chip is electrically connected to the anode of the first blue tube LED light-emitting chip.

[0107] In an optional implementation of this embodiment, the second electrodes of the three LED light-emitting chips in the same group of LED light-emitting chips are connected in parallel and electrically connected to the corresponding common electrode pins.

[0108] Specifically, such as Figure 9 As shown, the cathode of the first red tube LED light emitting chip, the cathode of the first green tube LED light emitting chip, and the cathode of the first blue tube LED light emitting chip are connected in parallel and electrically connected to the first common electrode pin rgb0-.

[0109] In an optional implementation of this embodiment, as Figure 10 As shown, Figure 10A schematic diagram of the back pins of an LED display device in a second embodiment of the present invention is shown. In this embodiment, a total of 13 pins are arranged on the second surface of the circuit substrate 1, including a data input pin SDI, a data output pin SDO, a red tube power pin VDDR, a blue and green tube power pin VDDGB, a power ground pin GND, two common electrode pins (RGB0-, RGB1-), and two groups of LED light-emitting chip control pins (R0+, G0+, B0+; R1+, G1+, B1+). The common electrode pins include a first common electrode pin RGB0- and a second common electrode pin RGB1-. The two groups of LED light-emitting chip control pins include a first group of LED light-emitting chip control pins R0+, G0+, B0+; and a second group of LED light-emitting chip control pins R1+, G1+, B1+. The first group of LED light-emitting chip control pins include a first red tube LED light-emitting chip control pin R0+, a first green tube LED light-emitting chip control pin G0+, and a first blue tube LED light-emitting chip control pin B0+. The same applies to the second group of LED light-emitting chip control pins.

[0110] In an optional implementation of this embodiment, the data input pin SDI is electrically connected to the data input pin SDI, the data output pin SDO is electrically connected to the data output pin SOD, the red tube power pin VDDR is electrically connected to the red tube power pin VDDR, the blue-green tube power pin VDDGB is electrically connected to the blue-green tube power pin VDDGB, and the power ground pin GND is electrically connected to the power ground pin GND.

[0111] Furthermore, the common electrode pins (rgb0-, rgb1-) are electrically connected to the common electrode pins (rgb0-, rgb1-) correspondingly, that is, the first common electrode pin rgb0- is electrically connected to the first common electrode pin rgb0-, and the second common electrode pin rgb1- is electrically connected to the second common electrode pin rgb1-.

[0112] Furthermore, the LED light-emitting chip control pin is electrically connected to the corresponding LED light-emitting chip control pin, the first red tube LED light-emitting chip control pin R0+ is electrically connected to the first red tube LED light-emitting chip control pin R0+, the first green tube LED light-emitting chip control pin G0+ is electrically connected to the first green tube LED light-emitting chip control pin G0+, and the first blue tube LED light-emitting chip control pin B0+ is electrically connected to the first blue tube LED light-emitting chip control pin B0+.

[0113] Furthermore, the second red tube LED light-emitting chip control pin R1+ is electrically connected to the second red tube LED light-emitting chip control pin R1+, the second green tube LED light-emitting chip control pin G1+ is electrically connected to the second green tube LED light-emitting chip control pin G1+, and the second blue tube LED light-emitting chip control pin B1+ is electrically connected to the second blue tube LED light-emitting chip control pin B1+.

[0114] In an optional implementation of this embodiment, as Figure 7 As shown, a mark recognition area is provided on the second surface of the circuit substrate 1 , and the mark recognition area is a triangular mark recognition area.

[0115] In an optional implementation of this embodiment, when the driver IC chip 2 and the LED light-emitting chip are arranged in a vertical structure on the first surface of the circuit substrate 1, and the first electrode of the LED light-emitting chip is the positive electrode and the second electrode is the negative electrode, a plurality of intermediate pads and a plurality of connecting wires are provided on the first surface of the circuit substrate 1, and all pins of the driver IC chip 2, the first electrode and the second electrode of the LED light-emitting chip, and all pins arranged on the second surface of the circuit substrate 1 are electrically connected based on the corresponding intermediate pads and connecting wires.

[0116] In an optional implementation of this embodiment, when the driver IC chip 2 and the LED light-emitting chip are arranged in a flip-chip structure on the first surface of the circuit substrate 1, and the first electrode of each of the LED light-emitting chips is a negative electrode and the second electrode is a positive electrode, the red tube power pin and the blue-green tube power pin in the driver IC chip 2 are replaced with a main power pin, and the red tube power pin and the blue-green tube power pin on the second surface of the circuit substrate 1 are replaced with a main power pin, and the main power pin is electrically connected to the main power pin accordingly.

[0117] In an optional implementation of this embodiment, when the driver IC chip 2 and the LED light-emitting chip are arranged in a positive structure on the first surface of the circuit substrate 1, and the first electrode of each of the LED light-emitting chips is a negative electrode and the second electrode is a positive electrode, the red tube power pin and the blue-green tube power pin in the driver IC chip 2 are replaced with a main power pin, and the red tube power pin and the blue-green tube power pin on the second surface of the circuit substrate 1 are replaced with a main power pin. Several intermediate pads and several connecting wires are arranged on the first surface of the circuit substrate 1, and all pins of the driver IC chip 2, the first electrode and the second electrode of the LED light-emitting chip, and all pins arranged on the second surface of the circuit substrate are electrically connected based on the electrical connection part arranged on the circuit substrate.

[0118] It should be noted that the above content can refer to the patent content related to this patent.

[0119] In summary, embodiment 2 of the present invention provides an LED display device, wherein a group of common pole pins are provided on the driver IC chip, which are connected to the common pole of the LED chip. In addition, another group of common pole pins are provided on the driver IC chip, which are connected to the common pole pins provided on the second surface of the circuit substrate, so that the LED display panel using the LED display device can simultaneously take into account the two major advantages of static driving and scanning driving of the built-in IC chip integrated package, with low power consumption and improved market competitiveness; the driver IC chip is provided with two common pole pins and two groups of LED light-emitting chip control pins, and the second surface of the circuit substrate is provided with two common pole pins and two groups of LED light-emitting chip control pins, among which only one common pole pin, one group of LED light-emitting chip control pins, one common pole pin, and one group of LED light-emitting chip control pins are connected to a group of LED light-emitting chips provided on the circuit substrate, and the remaining common pole pins, LED light-emitting chip control pins, common pole pins, and LED light-emitting chip control pins can be arranged on the circuit substrate according to actual needs. A group of LED light-emitting chips are added to the board, so that the structure of the LED display device with a built-in driver IC chip is more flexible. The LED display device with two common electrode pins, two groups of LED light-emitting chip control pins, two common electrode pins, and two groups of LED light-emitting chip control pins is used on the LED display module, and can simultaneously take into account the connection and control of the LED display device without a built-in driver IC chip in the four scanning display areas of up, down, left, and right, thereby improving the display efficiency of the LED display module; the LED display device integrates the packaged driver IC chip and the LED chip, and has a simple design structure, which can effectively improve the display performance and the protection capability of the driver IC chip; a single LED light-emitting chip can be driven by a driver IC chip, and the driving efficiency is higher; a marking identification area is set on the second surface of the circuit substrate to improve the efficiency of distinguishing the pin type; different structures such as flip-chip common cathode, upright common cathode, flip-chip common anode, upright common anode, etc. can be selected according to actual conditions, and all of them can share the circuit substrate, with high flexibility and high application value.

[0120] Example 3

[0121] The LED display device involved in the third embodiment of the present invention includes: one or more LED display devices with built-in driver IC chips and one or more LED display devices without built-in driver IC chips; the common pole pins of the LED display devices with built-in driver IC chips are correspondingly connected to the common pole pins of the LED display devices without built-in driver IC chips; and / or the LED light-emitting chip control pins of the LED display devices with built-in driver IC chips are correspondingly connected to the LED light-emitting chip control pins of the LED display devices without built-in driver IC chips.

[0122] In an optional implementation of this embodiment, as Figure 11 As shown, Figure 11 The schematic diagram of the structure of the LED display module in the third embodiment of the present invention is shown. The LED display module includes an LED display device with a built-in driver IC chip and an LED display device without a built-in driver IC chip.

[0123] In an optional implementation of this embodiment, the structure of the LED display device with a built-in driver IC chip can refer to the contents of the first and second embodiments, and will not be described in detail here.

[0124] In an optional implementation of this embodiment, the LED display device without a built-in driver IC chip includes one or more common electrode pins and one or more sets of LED light-emitting chip control pins.

[0125] In an optional implementation of this embodiment, as Figure 11 As shown by the oblique arrow in the middle, the data input pin in the LED display device with the built-in driver IC chip receives the driving signal of the processor.

[0126] In an optional implementation of this embodiment, the common electrode pin of the LED display device with a built-in driver IC chip is connected to the common electrode pin of the LED display device without a built-in driver IC chip.

[0127] Specifically, such as Figure 11 As shown by the solid line, the common electrode pin of the LED display device with a built-in driver IC chip is connected to the common electrode pin of the LED display device without a built-in driver IC chip.

[0128] In an optional implementation of this embodiment, the LED light emitting chip control pins of the LED display device with a built-in driver IC chip are correspondingly connected to the LED light emitting chip control pins of the LED display device without a built-in driver IC chip.

[0129] Specifically, such as Figure 11 As shown by the middle dotted line, the LED light emitting chip control pin of the LED display device with a built-in driver IC chip is connected to the LED light emitting chip control pin of the LED display device without a built-in driver IC chip.

[0130] Working principle: The driving signal of the processor is input into the data input pin of the LED display device with a built-in driver IC chip. The LED display device with a built-in driver IC chip sends a control signal to the common pole pin and the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip through the common pole pin and the LED light-emitting chip control pin according to the driving signal, thereby controlling the display effect of the LED display device without a built-in driver IC chip.

[0131] In summary, embodiment three of the present invention provides an LED display module, which is provided with an LED display device with a built-in driver IC chip and an LED display device without a built-in driver IC chip, and the common pole pin and LED light-emitting chip control pin of the LED display device with a built-in driver IC chip are correspondingly connected with the common pole pin and LED light-emitting chip control pin of the LED display device without a built-in driver IC chip, so that the LED display module can take into account the two major advantages of static driving and scanning driving of the integrated package of the built-in driver IC chip, thereby improving market competitiveness; at the same time, the LED display device with a built-in driver IC chip and the LED display device without a built-in driver IC chip are used to reduce costs while improving product performance; the LED display device with a built-in driver IC chip integrates and packages the driver IC chip and the LED light-emitting chip, has a simple design structure, can effectively improve display performance and the protection capability of the driver IC chip, has high reliability, and has high application value.

[0132] Example 4

[0133] The LED display device involved in the fourth embodiment of the present invention includes: one or more LED display devices with built-in driver IC chips and one or more LED display devices without built-in driver IC chips; the common pole pins of the LED display devices with built-in driver IC chips are correspondingly connected to the common pole pins of the LED display devices without built-in driver IC chips; and / or the LED light-emitting chip control pins of the LED display devices with built-in driver IC chips are correspondingly connected to the LED light-emitting chip control pins of the LED display devices without built-in driver IC chips.

[0134] In an optional implementation of this embodiment, as Figure 12 As shown, Figure 12 The schematic diagram of the structure of the LED display module in the fourth embodiment of the present invention is shown. The LED display module includes an LED display device with a built-in driver IC chip and several LED display devices without built-in driver IC chips.

[0135] It should be noted that Figure 12The middle circle represents an LED display device without a built-in driver IC chip, which is used to more concisely illustrate the structure of the LED display module in this embodiment.

[0136] In an optional implementation of this embodiment, the structure of the LED display device with a built-in driver IC chip can refer to the contents of the first and second embodiments, and will not be described in detail here.

[0137] In an optional implementation of this embodiment, each of the plurality of LED display devices without a built-in driver IC chip includes one or more common electrode pins and one or more LED light-emitting chip control pins.

[0138] In an optional implementation of this embodiment, as Figure 12 As shown by the oblique arrow in the middle, the data input pin in the LED display device with the built-in driver IC chip receives the driving signal of the processor.

[0139] In an optional implementation of this embodiment, the common electrode pin of the LED display device with a built-in driver IC chip is correspondingly connected to the common electrode pins of the plurality of LED display devices without a built-in driver IC chip.

[0140] Specifically, such as Figure 12 The solid line indicates that the common electrode pin of the LED display device with the built-in driver IC chip is connected in parallel with the common electrode pin of each LED display device without the built-in driver IC chip in the plurality of LED display devices without the built-in driver IC chip.

[0141] In an optional implementation of this embodiment, the LED light emitting chip control pins of the LED display device with a built-in driver IC chip are correspondingly connected to the LED light emitting chip control pins of the plurality of LED display devices without a built-in driver IC chip.

[0142] Specifically, such as Figure 12 The middle dotted line indicates that the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip is connected in parallel with the LED light-emitting chip control pin of each of the several LED display devices without a built-in driver IC chip.

[0143] Working principle: The driving signal of the processor is input into the data input pin of the LED display device with a built-in driver IC chip. The LED display device with a built-in driver IC chip sends a control signal to the common pole pin and LED light-emitting chip control pin of each of the several LED display devices without a built-in driver IC chip through the common pole pin and the LED light-emitting chip control pin according to the driving signal, thereby controlling the display effect of the several LED display devices without a built-in driver IC chip.

[0144] In summary, embodiment 4 of the present invention provides an LED display module, which is provided with an LED display device with a built-in driver IC chip and several LED display devices without a built-in driver IC chip, and the common pole pin and LED light-emitting chip control pin of the LED display device with a built-in driver IC chip and the common pole pin and LED light-emitting chip control pin of each of the several LED display devices without a built-in driver IC chip are connected in parallel, so that the LED display module can take into account the two major advantages of static driving and scanning driving of the integrated package of the built-in driver IC chip, thereby improving market competitiveness; the number of LED display devices with a built-in driver IC chip and LED display devices without a built-in driver IC chip can be flexibly selected according to demand, and a suitable LED display module can be designed. At the same time, the LED display device with a built-in driver IC chip and the LED display device without a built-in driver IC chip are used to reduce costs while improving product performance; the LED display device with a built-in driver IC chip integrates the packaged driver IC chip and the LED light-emitting chip, has a simple design structure, can effectively improve display performance and the protection capability of the driver IC chip, has high reliability, and has high application value.

[0145] Example 5

[0146] The LED display device involved in the fifth embodiment of the present invention includes: one or more LED display devices with built-in driver IC chips and one or more LED display devices without built-in driver IC chips; the common pole pins of the LED display devices with built-in driver IC chips are correspondingly connected to the common pole pins of the LED display devices without built-in driver IC chips; and / or the LED light-emitting chip control pins of the LED display devices with built-in driver IC chips are correspondingly connected to the LED light-emitting chip control pins of the LED display devices without built-in driver IC chips.

[0147] In an optional implementation of this embodiment, as Figure 13 As shown, Figure 13A schematic diagram of the structure of an LED display module in Example 5 of the present invention is shown. The LED display module includes several LED display devices with built-in driver IC chips and several LED display devices without built-in driver IC chips. The several LED display devices with built-in driver IC chips and the several LED display devices without built-in driver IC chips form an M*N rectangular array.

[0148] It should be noted that Figure 13 The middle circle represents an LED display device without a built-in driver IC chip, and the square represents an LED display device with a built-in driver IC chip. This is to more concisely illustrate the LED display module structure in this embodiment.

[0149] In an optional implementation of this embodiment, the structure of the LED display device with a built-in driver IC chip can refer to the contents of the first and second embodiments, and will not be described in detail here.

[0150] In an optional implementation of this embodiment, each of the plurality of LED display devices without a built-in driver IC chip includes one or more common electrode pins and one or more LED light-emitting chip control pins.

[0151] In an optional implementation of this embodiment, the plurality of LED display devices with built-in driver IC chips are arranged along a first preset direction, which is a direction of M rows or N columns.

[0152] Specifically, based on a plane rectangular coordinate system, the first preset direction is the positive direction of the X-axis.

[0153] In an optional implementation of this embodiment, a data input pin of a first LED display device with a built-in driver IC chip among the plurality of LED display devices with built-in driver IC chips is used to receive a drive signal from a processor, and between adjacent LED display devices with built-in driver IC chips arranged along a first preset direction, starting from the first LED display device with built-in driver IC chip, a data output pin of the LED display device with a built-in driver IC chip at the starting point among two adjacent LED display devices with built-in driver IC chips is connected to a data input pin of the LED display device with a built-in driver IC chip at the starting point;

[0154] Specifically, such as Figure 13As shown by the oblique arrow in the middle, the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, 0) receives the driving signal of the processor. The horizontal arrow along the first preset direction indicates that the data output pin of the LED display device with a built-in driver IC chip at coordinates (0, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (1, 0), the data output pin of the LED display device with a built-in driver IC chip at coordinates (1, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (2, 0), and so on, until the data output pin of the LED display device with a built-in driver IC chip at coordinates (m-1, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (m, 0).

[0155] In an optional implementation of this embodiment, the plurality of LED display devices without built-in driver IC chips are arranged on one side of the plurality of LED display devices with built-in driver IC chips along a second preset direction, and the second preset direction is orthogonal to the first preset direction.

[0156] Specifically, based on the plane rectangular coordinate system, the second preset direction is the positive direction of the Y axis, and the plurality of LED display devices without built-in driver IC chips are located on the second preset direction side of the plurality of LED display devices with built-in driver IC chips.

[0157] In an optional implementation of this embodiment, the common pole pin of each LED display device with a built-in driver IC chip among the several LED display devices with built-in driver IC chips is correspondingly connected to the common pole pins of multiple LED display devices without built-in driver IC chips in the second preset direction.

[0158] Specifically, such as Figure 13 As shown by the solid line, the common pole pin of each of the LED display devices with built-in driver IC chips is connected in parallel with the common pole pins of the corresponding column of multiple LED display devices without built-in driver IC chips located in the second preset direction.

[0159] Specifically, the common pole pin of the LED display device with a built-in driver IC chip whose coordinates are (0, 0) is connected in parallel with the common pole pin of the LED display device with a non-built-in driver IC chip whose coordinates are (0, 1), (0, 2), (0, 3), ..., (0, n), and the common pole pin of the LED display device with a built-in driver IC chip whose coordinates are (1, 0) is connected in parallel with the common pole pin of the LED display device with a non-built-in driver IC chip whose coordinates are (1, 1), (1, 2), (1, 3), ..., (1, n), and the common pole pin of the LED display device with a built-in driver IC chip whose coordinates are (1, 1), (1, 2), (1, 3), ..., (1, n) is connected in parallel. The common pole pin of the LED display device with a built-in driver IC chip marked as (2, 0) is connected in parallel with the common pole pin of the LED display device without a built-in driver IC chip with coordinates (2, 1), (2, 2), (2, 3), ..., (2, n), and so on, until the common pole pin of the LED display device with a built-in driver IC chip with coordinates (m, 0) is connected in parallel with the common pole pin of the LED display device without a built-in driver IC chip with coordinates (m, 1), (m, 2), (m, 3), ..., (m, n).

[0160] In an optional implementation of this embodiment, the LED light-emitting chip control pin of each LED display device with a built-in driver IC chip among the several LED display devices with built-in driver IC chips is correspondingly connected to the LED light-emitting chip control pins of multiple LED display devices without built-in driver IC chips in the second preset direction.

[0161] Specifically, such as Figure 13 As shown by the middle dotted line, the LED light-emitting chip control pin of each of the several LED display devices with built-in driver IC chips is connected in parallel with the LED light-emitting chip control pins of the corresponding column of multiple LED display devices without built-in driver IC chips located in the second preset direction.

[0162] Specifically, the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip whose coordinates are (0, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip whose coordinates are (0, 1), (0, 2), (0, 3), ..., (0, n), and the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip whose coordinates are (1, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip whose coordinates are (1, 1), (1, 2), (1, 3), ..., (1, n), and the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip whose coordinates are (1, 1), (1, 2), (1, 3), ..., (1, n), and the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip whose coordinates are (1, 1). The LED light-emitting chip control pin of the LED display device with a built-in driver IC chip marked as (2, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip with coordinates (2, 1), (2, 2), (2, 3), ..., (2, n), and so on, until the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip with coordinates (m, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip with coordinates (m, 1), (m, 2), (m, 3), ..., (m, n).

[0163] It should be noted that, in the M*N rectangular array, M=m+1, N=n+1.

[0164] Working principle: The driving signal of the processor is input to the data input pin of the LED display device with a built-in driver IC chip at coordinate (0, 0). The LED display device with a built-in driver IC chip at coordinate (0, 0) transmits the driving signal through the data output pin to the data input pin of the LED display device with a built-in driver IC chip at coordinate (1, 0), and so on, until it is transmitted to the data input pin of the LED display device with a built-in driver IC chip at coordinate (m, 0);

[0165] The LED display device with a built-in driver IC chip at coordinates (0, 0) sends a control signal to the common pole pin and LED light-emitting chip control pin of the LED display device without a built-in driver IC chip at coordinates (0, 1), (0, 2), (0, 3), ..., (0, n) through the common pole pin and the LED light-emitting chip control pin according to the driving signal, thereby controlling the display effect of the LED display device without a built-in driver IC chip at coordinates (0, 1), (0, 2), (0, 3), ..., (0, n), and the same is true for the LED display device with a built-in driver IC chip at coordinates (1, 0), (2, 0), ..., (m, 0), thereby controlling the display effect of the LED display device without a built-in driver IC chip.

[0166] In summary, embodiment five of the present invention provides an LED display module, which is provided with several LED display devices with built-in driver IC chips and several LED display devices without built-in driver IC chips, and the common pole pins and LED light-emitting chip control pins of the several LED display devices with built-in driver IC chips and the common pole pins and LED light-emitting chip control pins of each of the several LED display devices without built-in driver IC chips are connected in parallel, so that the LED display module can take into account the two major advantages of static driving and scanning driving of the integrated package of the built-in driver IC chip, thereby improving market competitiveness; the number of LED display devices with built-in driver IC chips and LED display devices without built-in driver IC chips can be flexibly selected according to needs, and a suitable LED display module can be designed. By using LED display devices with built-in driver IC chips and LED display devices without built-in driver IC chips at the same time, costs can be reduced while improving product performance; the LED display device with built-in driver IC chip integrates the packaged driver IC chip and the LED light-emitting chip, has a simple design structure, can effectively improve display performance and the protection capability of the driver IC chip, has high reliability, and has high application value.

[0167] Example 6

[0168] The LED display device involved in the sixth embodiment of the present invention includes: one or more LED display devices with built-in driver IC chips and one or more LED display devices without built-in driver IC chips; the common pole pins of the LED display devices with built-in driver IC chips are correspondingly connected to the common pole pins of the LED display devices without built-in driver IC chips; and / or the LED light-emitting chip control pins of the LED display devices with built-in driver IC chips are correspondingly connected to the LED light-emitting chip control pins of the LED display devices without built-in driver IC chips.

[0169] In an optional implementation of this embodiment, as Figure 14 As shown, Figure 14 A schematic structural diagram of an LED display module in a sixth embodiment of the present invention is shown. The LED display module includes several LED display devices with built-in driver IC chips and several LED display devices without built-in driver IC chips. The several LED display devices with built-in driver IC chips and the several LED display devices without built-in driver IC chips form an M*N rectangular array.

[0170] It should be noted that Figure 14 The middle circle represents an LED display device without a built-in driver IC chip, and the square represents an LED display device with a built-in driver IC chip. This is to more concisely illustrate the LED display module structure in this embodiment.

[0171] In an optional implementation of this embodiment, the structure of the LED display device with a built-in driver IC chip can refer to the contents of the first and second embodiments, and will not be described in detail here.

[0172] In an optional implementation of this embodiment, each of the plurality of LED display devices without a built-in driver IC chip includes one or more common electrode pins and one or more LED light-emitting chip control pins.

[0173] In an optional implementation of this embodiment, M LED display devices with built-in driver IC chips among the several LED display devices with built-in driver IC chips are arranged along a first preset direction, and N LED display devices with built-in driver IC chips among the several LED display devices with built-in driver IC chips are arranged along a second preset direction, and the first preset direction and the second preset direction are arranged orthogonally.

[0174] Specifically, the LED display device with a built-in driver IC chip with coordinates (0, 0) and the LED display device with a built-in driver IC chip with coordinates (1, 0), (2, 0), (3, 0), ..., (m, 0) are arranged along a first preset direction, and the LED display device with a built-in driver IC chip with coordinates (0, 1) and the LED display device with a built-in driver IC chip with coordinates (0, 2), (0, 3), ..., (0, n) are arranged along a second preset direction.

[0175] It should be noted that, based on a plane rectangular coordinate system, the first preset direction is the positive direction of the X-axis, and the second preset direction is the positive direction of the Y-axis.

[0176] It should be noted that M=m+1, N=n.

[0177] In an optional implementation of this embodiment, the data input pin of the LED display device with a built-in driver IC chip at the orthogonal point where the first preset direction and the second preset direction are located receives the driving signal of the processor, and between adjacent LED display devices with built-in driver IC chips arranged along the first preset direction, starting from the LED display device with a built-in driver IC chip at the orthogonal point, the data output pin of the LED display device with a built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with a built-in driver IC chip at the starting point.

[0178] Specifically, such as Figure 14As shown by the oblique arrow in the middle, the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, 0) receives the driving signal of the processor. The horizontal arrow along the first preset direction indicates that the data output pin of the LED display device with a built-in driver IC chip at coordinates (0, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (1, 0), the data output pin of the LED display device with a built-in driver IC chip at coordinates (1, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (2, 0), and so on, until the data output pin of the LED display device with a built-in driver IC chip at coordinates (m-1, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (m, 0).

[0179] In an optional implementation of this embodiment, in the second preset direction, the data input pin of the LED display device with a built-in driver IC chip adjacent to the orthogonal point receives the driving signal of the processor, and between the adjacent LED display devices with built-in driver IC chips arranged along the second preset direction, starting from the LED display device with a built-in driver IC chip adjacent to the orthogonal point, the data output pin of the LED display device with a built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with a built-in driver IC chip at the starting point.

[0180] Specifically, such as Figure 14 As shown by the oblique arrow in the middle, the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, 1) receives the driving signal of the processor, and the vertical arrow along the second preset direction indicates that the data output pin of the LED display device with a built-in driver IC chip at coordinates (0, 1) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, 2), the data output pin of the LED display device with a built-in driver IC chip at coordinates (0, 2) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, 3), and so on, until the data output pin of the LED display device with a built-in driver IC chip at coordinates (0, n-1) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, n).

[0181] In an optional implementation of this embodiment, the common electrode pin of each LED display device with a built-in driver IC chip arranged in the second preset direction is correspondingly connected to the common electrode pins of multiple LED display devices without built-in driver IC chips in the first preset direction.

[0182] Specifically, such as Figure 14As shown by the solid line, the common pole pin of each LED display device with a built-in driver IC chip in the LED display devices with a built-in driver IC chip arranged along the second preset direction is connected in parallel with the common pole pins of multiple LED display devices without built-in driver IC chips in the corresponding row and located in the first preset direction.

[0183] Specifically, the common pole pin of the LED display device with a built-in driver IC chip with coordinates (0, 1) is connected in parallel with the common pole pin of the LED display device with a non-built-in driver IC chip with coordinates (1, 1), (2, 1), ..., (m, 1); the common pole pin of the LED display device with a built-in driver IC chip with coordinates (0, 2) is connected in parallel with the common pole pin of the LED display device with a non-built-in driver IC chip with coordinates (1, 2), (2, 2), ..., (m, 2); the common pole pin of the LED display device with a built-in driver IC chip with coordinates (0, 3) is connected in parallel with the common pole pin of the LED display device with a non-built-in driver IC chip with coordinates (1, 3), (2, 3), ..., (m, 3); and so on, until the common pole pin of the LED display device with a built-in driver IC chip with coordinates (0, n) is connected in parallel with the common pole pin of the LED display device with a non-built-in driver IC chip with coordinates (1, n), (2, n), ..., (m, n).

[0184] In an optional implementation of this embodiment, the LED light-emitting chip control pins of each LED display device with a built-in driver IC chip arranged in the first preset direction are correspondingly connected to the LED light-emitting chip control pins of multiple LED display devices without built-in driver IC chips in the second preset direction.

[0185] Specifically, such as Figure 14 As shown by the middle dotted line, the LED light-emitting chip control pin of each LED display device with a built-in driver IC chip in the LED display devices with a built-in driver IC chip arranged along the first preset direction is connected in parallel with the LED light-emitting chip control pins of multiple LED display devices without built-in driver IC chips in the corresponding column and located in the second preset direction.

[0186] Specifically, the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip with coordinates (1, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip with coordinates (1, 1), (1, 2), (1, 3), ..., (1, n); the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip with coordinates (2, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip with coordinates (2, 1), (2, 2), (2, 3), ..., (2, n); and so on, until the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip with coordinates (m, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip with coordinates (m, 1), (m, 2), (m, 3), ..., (m, n).

[0187] Working principle: the driving signal of the processor is input to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, 0), and the LED display device with a built-in driver IC chip with coordinates (0, 0) transmits the driving signal through the data output pin to the data input pin of the LED display device with a built-in driver IC chip with coordinates (1, 0), and so on, until it is transmitted to the data input pin of the LED display device with a built-in driver IC chip with coordinates (m, 0); at the same time, the driving signal of the processor is input to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, 1), and the LED display device with a built-in driver IC chip with coordinates (0, 1) transmits the driving signal through the data output pin to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, 2), and so on, until it is transmitted to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, n);

[0188] The LED display device with a built-in driver IC chip at coordinates (1, 0) sends a control signal to the LED light-emitting chip control pins of the LED display devices with no built-in driver IC chips at coordinates (1, 1), (1, 2), (1, 3), ..., (1, n) according to the driving signal through the LED light-emitting chip control pins, thereby controlling the display effects of the LED display devices with no built-in driver IC chips at coordinates (1, 1), (1, 2), (1, 3), ..., (1, n), and the same applies to the LED display devices with built-in driver IC chips at coordinates (2, 0), ..., (m, 0); The LED display device with a built-in driver IC chip marked as (0, 1) sends a control signal to the common pole pin of the LED display device without a built-in driver IC chip with coordinates of (1, 1), (2, 1), ..., (m, 1) through the common pole pin according to the driving signal, thereby controlling the display effect of the LED display device without a built-in driver IC chip with coordinates of (1, 1), (2, 1), ..., (m, 1). The same is true for the LED display device with a built-in driver IC chip with coordinates of (0, 2), (0, 3), ..., (0, n). In this way, the display effect of the LED display module can be controlled.

[0189] In summary, embodiment six of the present invention provides an LED display module, which is provided with several LED display devices with built-in driver IC chips and several LED display devices without built-in driver IC chips, and the common pole pins and LED light-emitting chip control pins of the several LED display devices with built-in driver IC chips and the common pole pins and LED light-emitting chip control pins of each of the several LED display devices without built-in driver IC chips are connected in parallel, so that the LED display module can take into account the two major advantages of static driving and scanning driving of the integrated package of the built-in driver IC chip, thereby improving market competitiveness; the number of LED display devices with built-in driver IC chips and LED display devices without built-in driver IC chips can be flexibly selected according to demand, and a suitable LED display module can be designed. By using LED display devices with built-in driver IC chips and LED display devices without built-in driver IC chips at the same time, costs can be reduced while improving product performance; the LED display device with built-in driver IC chip integrates the packaged driver IC chip and the LED light-emitting chip, has a simple design structure, can effectively improve display performance and the protection capability of the driver IC chip, has high reliability, and has high application value.

[0190] Example 7

[0191] The LED display device involved in the seventh embodiment of the present invention includes: one or more LED display devices with built-in driver IC chips and one or more LED display devices without built-in driver IC chips; the common pole pin of the LED display device with built-in driver IC chip is correspondingly connected to the common pole pin of the LED display device without built-in driver IC chip; and / or the LED light-emitting chip control pin of the LED display device with built-in driver IC chip is correspondingly connected to the LED light-emitting chip control pin of the LED display device without built-in driver IC chip.

[0192] In an optional implementation of this embodiment, as Figure 15 As shown, Figure 15 A schematic structural diagram of an LED display module in a seventh embodiment of the present invention is shown. The LED display module includes several LED display devices with built-in driver IC chips and several LED display devices without built-in driver IC chips. The several LED display devices with built-in driver IC chips and the several LED display devices without built-in driver IC chips form an M*N rectangular array.

[0193] It should be noted that Figure 15 The middle circle represents an LED display device without a built-in driver IC chip, and the square represents an LED display device with a built-in driver IC chip. This is to more concisely illustrate the LED display module structure in this embodiment.

[0194] In an optional implementation of this embodiment, the structure of the LED display device with a built-in driver IC chip can refer to the contents of the first and second embodiments, and will not be described in detail here.

[0195] In an optional implementation of this embodiment, each of the plurality of LED display devices without a built-in driver IC chip includes one or more common electrode pins and one or more LED light-emitting chip control pins.

[0196] In an optional implementation of this embodiment, M LED display devices with built-in driver IC chips among the several LED display devices with built-in driver IC chips are arranged along a first preset direction, and N LED display devices with built-in driver IC chips among the several LED display devices with built-in driver IC chips are arranged along a second preset direction, and the first preset direction and the second preset direction are arranged orthogonally.

[0197] Specifically, the LED display device with a built-in driver IC chip with coordinates (i, 0) and the LED display device with a built-in driver IC chip with coordinates (i+1, 0), (i+2, 0), ..., (-2, 0), (-1, 0), (0, 0), (1, 0), (2, 0), ..., (m, 0) are arranged along a first preset direction, and the LED display device with a built-in driver IC chip with coordinates (0, j) and the LED display device with a built-in driver IC chip with coordinates (0, j+1), (0, j+2), ..., (0, -2), (0, -1), (0, 0), (0, 1), (0, 2), ..., (0, n) are arranged along a second preset direction.

[0198] In an optional implementation of this embodiment, the first preset direction includes a first positive direction and a first negative direction, and the second preset direction includes a second positive direction and a second negative direction.

[0199] It should be noted that, based on the plane rectangular coordinate system, the first positive direction is the positive direction of the X-axis, the first negative direction is the negative direction of the X-axis, the second positive direction is the positive direction of the Y-axis, and the second negative direction is the negative direction of the Y-axis.

[0200] It should be noted that M=m+|i|+1, N=n+|j|+1.

[0201] In an optional implementation of this embodiment, the data input pin of the LED display device with a built-in driver IC chip at the orthogonal point where the first preset direction and the second preset direction are located receives the driving signal of the processor, and between adjacent LED display devices with built-in driver IC chips arranged along the first positive direction, starting from the LED display device with a built-in driver IC chip at the orthogonal point, the data output pin of the LED display device with a built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with a built-in driver IC chip at the starting point.

[0202] Specifically, Figure 15As shown by the oblique arrow in the middle, the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, 0) receives the driving signal of the processor. The horizontal arrow along the first positive direction indicates that the data output pin of the LED display device with a built-in driver IC chip at coordinates (0, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (1, 0), the data output pin of the LED display device with a built-in driver IC chip at coordinates (1, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (2, 0), and so on, until the data output pin of the LED display device with a built-in driver IC chip at coordinates (m-1, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (m, 0).

[0203] In an optional implementation of this embodiment, between adjacent LED display devices with built-in driver IC chips arranged along the first negative direction, starting from the LED display device with built-in driver IC chip adjacent to the orthogonal point, the data output pin of the LED display device with built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with built-in driver IC chip at the starting point.

[0204] Specifically, Figure 15 As shown by the middle oblique arrow, the data input pin of the LED display device with a built-in driver IC chip at coordinates (-1, 0) receives the driving signal of the processor. The horizontal arrow along the first negative direction indicates that the data output pin of the LED display device with a built-in driver IC chip at coordinates (-1, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (-2, 0), and so on, until the data output pin of the LED display device with a built-in driver IC chip at coordinates (i+1, 0) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (i, 0).

[0205] In an optional implementation of this embodiment, in the second positive direction, the data input pin of the LED display device with a built-in driver IC chip adjacent to the orthogonal point receives the driving signal of the processor, and between the adjacent LED display devices with built-in driver IC chips arranged along the second positive direction, starting from the LED display device with a built-in driver IC chip adjacent to the orthogonal point, the data output pin of the LED display device with the built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with the built-in driver IC chip at the starting point.

[0206] Specifically, Figure 15As shown by the middle oblique arrow, the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, 1) receives the driving signal of the processor. The horizontal arrow along the first positive direction indicates that the data output pin of the LED display device with a built-in driver IC chip at coordinates (0, 1) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, 2), and so on, until the data output pin of the LED display device with a built-in driver IC chip at coordinates (0, n-1) is connected to the data input pin of the LED display device with a built-in driver IC chip at coordinates (0, n).

[0207] In an optional implementation of this embodiment, in the second negative direction, the data input pin of the LED display device with a built-in driver IC chip adjacent to the orthogonal point receives the driving signal of the processor, and between the adjacent LED display devices with built-in driver IC chips arranged along the second negative direction, starting from the LED display device with a built-in driver IC chip adjacent to the orthogonal point, the data output pin of the LED display device with the built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with the built-in driver IC chip at the starting point.

[0208] Specifically, Figure 15 As shown by the middle oblique arrow, the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, -1) receives the driving signal of the processor, and the horizontal arrow along the first positive direction indicates that the data output pin of the LED display device with a built-in driver IC chip with coordinates (0, -1) is connected to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, -2), and so on, until the data output pin of the LED display device with a built-in driver IC chip with coordinates (0, j+1) is connected to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, j).

[0209] In an optional implementation of this embodiment, the common electrode pin of each LED display device with a built-in driver IC chip arranged in the second preset direction is correspondingly connected to the common electrode pins of multiple LED display devices without built-in driver IC chips in the first preset direction.

[0210] Specifically, such as Figure 15 As shown by the solid line, the common pole pin of each LED display device with a built-in driver IC chip arranged along the second preset direction is connected in parallel with the common pole pins of the corresponding row of LED display devices without built-in driver IC chips located in the first preset direction.

[0211] Specifically, the common pole pin of the LED display device with the built-in driver IC chip with the coordinates (0, 1) is connected in parallel with the common pole pin of the LED display device without the built-in driver IC chip with the coordinates (1, 1), (2, 1), ..., (m, 1), (-1, 1), (-2, 1), ..., (i, 1); the common pole pin of the LED display device with the built-in driver IC chip with the coordinates (0, 2) is connected in parallel with the common pole pin of the LED display device without the built-in driver IC chip with the coordinates (1, 2), (2, 2), ..., (m, 2), (-1, 2), (-2, 2), ..., (i, 2); the common pole pin of the LED display device with the built-in driver IC chip with the coordinates (0, -1) is connected in parallel with the common pole pin of the LED display device with the coordinates (1, -1), (2, -1), ..., (m, -1 ), (-1, -1), (-2, -1), …, (i, -1) are connected in parallel with the common pole pins of the LED display devices with non-built-in driver IC chips, and so on, until the common pole pins of the LED display devices with built-in driver IC chips with coordinates (0, n) are connected in parallel with the common pole pins of the LED display devices with coordinates (1, n), (2, n), …, (m, n), (-1, n), (-2, n), …, (i, n), and the common pole pins of the LED display devices with built-in driver IC chips with coordinates (0, j) are connected in parallel with the common pole pins of the LED display devices with non-built-in driver IC chips with coordinates (1, j), (2, j), …, (m, j), (-1, j), (-2, j), …, (i, j).

[0212] In an optional implementation of this embodiment, the LED light-emitting chip control pins of each LED display device with a built-in driver IC chip arranged in the first preset direction are correspondingly connected to the LED light-emitting chip control pins of multiple LED display devices without built-in driver IC chips in the second preset direction.

[0213] Specifically, such as Figure 15 As shown by the middle dotted line, the LED light-emitting chip control pin of each LED display device with a built-in driver IC chip arranged along the first preset direction is connected in parallel with the LED light-emitting chip control pins of the corresponding column of multiple LED display devices without built-in driver IC chips located in the second preset direction.

[0214] Specifically, the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip whose coordinates are (1, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip whose coordinates are (1, 1), (1, 2), ..., (1, n), (1, -1), (1, -2), ..., (1, j), the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip whose coordinates are (2, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device without a built-in driver IC chip whose coordinates are (2, 1), (2, 2), ..., (2, n), (2, -1), (2, -2), ..., (2, j), the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip whose coordinates are (-1, 0) is connected in parallel with the LED light-emitting chip control pin of the LED display device with a built-in driver IC chip whose coordinates are (-1, 1), (-1, 2), ..., (-1, n), (-1, -1), (-1, -2), …, (-1, j) with non-built-in driver IC chip, and so on, until the LED light-emitting chip control pins of the LED display device with built-in driver IC chip with coordinates (m, 0) are connected in parallel with the LED light-emitting chip control pins of the LED display device with coordinates (m, 1), (m, 2), (m, 3), …, (m, n), (m, -1), (m, -2), …, (m, j) with non-built-in driver IC chip, and the LED light-emitting chip control pins of the LED display device with built-in driver IC chip with coordinates (i, 0) are connected in parallel with the LED light-emitting chip control pins of the LED display device with coordinates (i, 1), (i, 2), (i, 3), …, (i, n), (i, -1), (i, -2), …, (i, j) with non-built-in driver IC chip.

[0215] Working principle: the driving signal of the processor is input to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, 0), and the LED display device with a built-in driver IC chip with coordinates (0, 0) transmits the driving signal through the data output pin to the data input pin of the LED display device with a built-in driver IC chip with coordinates (1, 0), and so on, until it is transmitted to the data input pin of the LED display device with a built-in driver IC chip with coordinates (m, 0); at the same time, the driving signal of the processor is input to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, 1), and the LED display device with a built-in driver IC chip with coordinates (0, 1) transmits the driving signal through the data output pin to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, 2), and so on, until it is transmitted to the data input pin of the LED display device with a built-in driver IC chip with coordinates (0, n); at the same time , the driving signal of the processor is input to the data input pin of the LED display device with the built-in driver IC chip with the coordinates of (0, -1), and the LED display device with the built-in driver IC chip with the coordinates of (0, -1) transmits the driving signal through the data output pin to the data input pin of the LED display device with the built-in driver IC chip with the coordinates of (0, -2), and so on, until it is transmitted to the data input pin of the LED display device with the built-in driver IC chip with the coordinates of (0, j); at the same time, the driving signal of the processor is input to the data input pin of the LED display device with the built-in driver IC chip with the coordinates of (-1, 0), and the LED display device with the built-in driver IC chip with the coordinates of (-1, 0) transmits the driving signal through the data output pin to the data input pin of the LED display device with the built-in driver IC chip with the coordinates of (-2, 0), and so on, until it is transmitted to the data input pin of the LED display device with the built-in driver IC chip with the coordinates of (i, 0);

[0216] The LED display device with a built-in driver IC chip at coordinates (1, 0) sends a control signal to the LED light-emitting chip control pins of the LED display devices with no built-in driver IC chip at coordinates (1, 1), (1, 2), (1, 3), ..., (1, n), (1, -1), (1, -2), ..., (1, j) according to the driving signal through the LED light-emitting chip control pin, thereby controlling the display effect of the LED display devices with no built-in driver IC chip at coordinates (1, 1), (1, 2), (1, 3), ..., (1, n), (1, -1), (1, -2), ..., (1, j), and the same applies to the LED display devices with built-in driver IC chips at coordinates (2, 0), ..., (m, 0), (-1, 0), (-2, 0), ..., (i, 0). Here, the LED display device with a built-in driver IC chip at coordinates (0, 1) sends a control signal to the common pole pin of the LED display device with coordinates (1, 1), (2, 1), ..., (m, 1), (-1, 1), (-2, 1), ..., (i, 1) without a built-in driver IC chip through a common pole pin according to the driving signal, thereby controlling the display effect of the LED display device with coordinates (1, 1), (2, 1), ..., (m, 1), (-1, 1), (-2, 1), ..., (i, 1) without a built-in driver IC chip. The same is true for the LED display device with a built-in driver IC chip at coordinates (0, 2), ..., (0, n), (0, -1), (0, -2), ..., (0, j), thereby controlling the display effect of the LED display module.

[0217] In summary, embodiment seven of the present invention provides an LED display module, which is provided with several LED display devices with built-in driver IC chips and several LED display devices without built-in driver IC chips, and the common pole pins and LED light-emitting chip control pins of the several LED display devices with built-in driver IC chips and the common pole pins and LED light-emitting chip control pins of each of the several LED display devices without built-in driver IC chips are connected in parallel, so that the LED display module can take into account the two major advantages of static driving and scanning driving of the integrated package of the built-in driver IC chip, thereby improving market competitiveness; the number of LED display devices with built-in driver IC chips and LED display devices without built-in driver IC chips can be flexibly selected according to demand, and a suitable LED display module can be designed. By using LED display devices with built-in driver IC chips and LED display devices without built-in driver IC chips at the same time, costs can be reduced while improving product performance; the LED display device with built-in driver IC chip integrates the packaged driver IC chip and the LED light-emitting chip, has a simple design structure, can effectively improve display performance and the protection capability of the driver IC chip, has high reliability, and has high application value.

[0218] Those skilled in the art will 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, which may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0219] In addition, the embodiments of the present invention are introduced 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 limiting the present invention.

Claims

1. An LED display module, characterized in that: The LED display module includes: one or more LED display devices with built-in driver IC chips and one or more LED display devices without built-in driver IC chips; The common electrode pin of the LED display device with a built-in driver IC chip is connected to the common electrode pin of the LED display device without a built-in driver IC chip; and / or The LED light emitting chip control pins of the LED display device with a built-in driver IC chip are correspondingly connected to the LED light emitting chip control pins of the LED display device without a built-in driver IC chip; Each of the at least one LED display device with a built-in driver IC chip comprises a circuit substrate, a driver IC chip, and one or more LED light-emitting chips; The circuit substrate includes a first surface and a second surface, the first surface and the second surface are arranged opposite to each other, and the driver IC chip and the one or more LED light-emitting chips are arranged on the first surface of the circuit substrate; The driver IC chip includes one or more common electrode pins and one or more groups of LED light emitting chip control pins, and each group of LED light emitting chip control pins includes three LED light emitting chip control pins; The second surface of the circuit substrate is provided with one or more common electrode pins and one or more groups of LED light emitting chip control pins, and each group of LED light emitting chip control pins includes three LED light emitting chip control pins; The common electrode pins are electrically connected to the common electrode pins, and the LED light-emitting chip control pins are electrically connected to the LED light-emitting chip control pins.

2. The LED display module according to claim 1, wherein: The driver IC chip further includes a data input pin, a data output pin, one or more power pins, and a power ground pin; The second surface of the circuit substrate is also provided with a data input pin, a data output pin, one or more power pins, and a power ground pin; The data input pin is electrically connected to the data input pin, the data output pin is electrically connected to the data output pin, the power pin is electrically connected to the power pin correspondingly, and the power ground pin is electrically connected to the power ground pin.

3. The LED display module according to claim 2, wherein: Each group of LED light-emitting chips includes three LED light-emitting chips, and each of the LED light-emitting chips includes a first electrode and a second electrode; The LED light emitting chip control pin is electrically connected to the first electrode of the corresponding LED light emitting chip on the first surface of the circuit substrate; The second electrodes of the three LED light-emitting chips in the same group of LED light-emitting chips are connected in parallel and electrically connected to the corresponding common electrode pins.

4. The LED display module according to claim 3, wherein: Each group of LED light emitting chip control pins includes a red tube LED light emitting chip control pin, a green tube LED light emitting chip control pin, and a blue tube LED light emitting chip control pin; Each group of LED light-emitting chips includes a red tube LED light-emitting chip, a green tube LED light-emitting chip, and a blue tube LED light-emitting chip; Each group of LED light emitting chip control pins includes a red tube LED light emitting chip control pin, a green tube LED light emitting chip control pin, and a blue tube LED light emitting chip control pin.

5. The LED display module according to claim 4, wherein: The driver IC chip and the LED light-emitting chip are arranged on the first surface of the circuit substrate in a face-up structure or a flip-down structure; The first electrode and the second electrode of the LED light emitting chip in a face-up structure are located on the light emitting surface of the LED light emitting chip, and the first electrode and the second electrode of the LED light emitting chip in a flip-chip structure are located on the backlight surface of the LED light emitting chip.

6. The LED display module according to claim 5, wherein: When the driver IC chip and the LED light-emitting chip are arranged in a vertical structure on the first surface of the circuit substrate, a plurality of intermediate pads and a plurality of connecting lines are provided on the first surface of the circuit substrate. The control pin of the LED light-emitting chip is electrically connected to the first electrode of the LED light-emitting chip based on the intermediate pad and the connecting line. The second electrode of the LED light-emitting chip is electrically connected to the common electrode pin based on the intermediate pad and the connecting line. The data input pin is electrically connected to the data input pin based on the intermediate pad and the connecting line. The data output pin is electrically connected to the data output pin based on the intermediate pad and the connecting line. The power ground pin is electrically connected to the power ground pin based on the intermediate pad and the connecting line.

7. The LED display module according to claim 5, wherein: When the driver IC chip and the LED light-emitting chip are arranged in a flip-chip structure on the first surface of the circuit substrate, all pins of the driver IC chip, the first electrode and the second electrode of the LED light-emitting chip, and all pins arranged on the second surface of the circuit substrate are electrically connected based on the electrical connection parts arranged on the circuit substrate.

8. The LED display module according to claim 1, wherein: Each of the more than one LED display devices without a built-in driver IC chip includes one or more common electrode pins and one or more LED light-emitting chip control pins.

9. The LED display module according to any one of claims 1 to 8, wherein: The LED display module includes: an LED display device with a built-in driver IC chip and an LED display device without a built-in driver IC chip; The data input pin of the LED display device with a built-in driver IC chip is used to receive a driving signal from a processor; The common electrode pin of the LED display device with a built-in driver IC chip is connected to the common electrode pin of the LED display device without a built-in driver IC chip; The LED light emitting chip control pins of the LED display device with a built-in driver IC chip are correspondingly connected to the LED light emitting chip control pins of the LED display device without a built-in driver IC chip.

10. The LED display module according to any one of claims 1 to 8, characterized in that: The LED display module includes: an LED display device with a built-in driver IC chip and a plurality of LED display devices without a built-in driver IC chip; The data input pin of the LED display device with a built-in driver IC chip is used to receive a driving signal from a processor; The common electrode pin of the LED display device with a built-in driver IC chip is connected to the common electrode pins of the plurality of LED display devices without a built-in driver IC chip; and / or The LED light emitting chip control pins of the LED display device with a built-in driver IC chip are correspondingly connected to the LED light emitting chip control pins of the plurality of LED display devices without a built-in driver IC chip.

11. The LED display module according to any one of claims 1 to 8, characterized in that: The LED display module includes: a plurality of LED display devices with built-in driver IC chips and a plurality of LED display devices without built-in driver IC chips, wherein the plurality of LED display devices with built-in driver IC chips and the plurality of LED display devices without built-in driver IC chips form an M*N rectangular array, wherein: The plurality of LED display devices with built-in driver IC chips are arranged along a first preset direction, where the first preset direction is an M-row direction or an N-column direction; a data input pin of a first LED display device with a built-in driver IC chip among the plurality of LED display devices with built-in driver IC chips is used to receive a driving signal from a processor; and between adjacent LED display devices with built-in driver IC chips arranged along the first preset direction, starting from the first LED display device with built-in driver IC chip, a data output pin of the LED display device with a built-in driver IC chip of a starting point among two adjacent LED display devices with built-in driver IC chips is connected to a data input pin of the LED display device with a built-in driver IC chip of the starting point; The plurality of LED display devices without built-in driver IC chips are arranged on one side of the plurality of LED display devices with built-in driver IC chips along a second preset direction, and the second preset direction is orthogonal to the first preset direction; Each of the plurality of LED display devices without a built-in driver IC chip comprises one or more common electrode pins and one or more LED light-emitting chip control pins; The common electrode pin of each LED display device with a built-in driver IC chip among the plurality of LED display devices with a built-in driver IC chip is correspondingly connected to the common electrode pins of the plurality of LED display devices without a built-in driver IC chip in the second preset direction; and / or The LED light emitting chip control pin of each LED display device with a built-in driver IC chip among the several LED display devices with built-in driver IC chips is correspondingly connected to the LED light emitting chip control pins of multiple LED display devices without built-in driver IC chips in the second preset direction.

12. The LED display module according to any one of claims 1 to 8, characterized in that: The LED display module includes: a plurality of LED display devices with built-in driver IC chips and a plurality of LED display devices without built-in driver IC chips, wherein the plurality of LED display devices with built-in driver IC chips and the plurality of LED display devices without built-in driver IC chips form an M*N rectangular array, wherein: M LED display devices with built-in driver IC chips among the plurality of LED display devices with built-in driver IC chips are arranged along a first preset direction, and N LED display devices with built-in driver IC chips among the plurality of LED display devices with built-in driver IC chips are arranged along a second preset direction, and the first preset direction and the second preset direction are arranged orthogonally; Each of the plurality of LED display devices without a built-in driver IC chip comprises one or more common electrode pins and one or more LED light-emitting chip control pins; The driving signal of the processor is received at a data input pin of an LED display device with a built-in driver IC chip at an orthogonal point between the first preset direction and the second preset direction. Between adjacent LED display devices with built-in driver IC chips arranged along the first preset direction, starting from the LED display device with built-in driver IC chips at the orthogonal point, the data output pin of the LED display device with built-in driver IC chips at the starting point among two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with built-in driver IC chips at the starting point. In a second preset direction, a data input pin of an LED display device with a built-in driver IC chip adjacent to an orthogonal point receives a driving signal from the processor, and between adjacent LED display devices with built-in driver IC chips arranged along the second preset direction, starting from the LED display device with a built-in driver IC chip adjacent to the orthogonal point, a data output pin of the LED display device with a built-in driver IC chip at the starting point among two adjacent LED display devices with built-in driver IC chips is connected to a data input pin of the LED display device with a built-in driver IC chip at the starting point; The common electrode pin of each LED display device with a built-in driver IC chip arranged in the second preset direction is correspondingly connected to the common electrode pins of multiple LED display devices without a built-in driver IC chip arranged in the first preset direction; and / or The LED light emitting chip control pins of each LED display device with a built-in driver IC chip arranged in the first preset direction are correspondingly connected to the LED light emitting chip control pins of multiple LED display devices without built-in driver IC chips in the second preset direction.

13. The LED display module according to claim 12, wherein: The first preset direction includes a first positive direction and a first negative direction, and the second preset direction includes a second positive direction and a second negative direction; The driving signal of the processor is received at a data input pin of an LED display device with a built-in driver IC chip at a point where the first preset direction and the second preset direction intersect. Between adjacent LED display devices with built-in driver IC chips arranged along the first positive direction, starting from the LED display device with built-in driver IC chips at the point where the first preset direction intersects, the data output pin of the LED display device with built-in driver IC chips at the starting point among two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with built-in driver IC chips at the starting point. Between adjacent LED display devices with built-in driver IC chips arranged along the first negative direction, starting from the LED display device with built-in driver IC chips adjacent to the orthogonal point, the data output pin of the LED display device with built-in driver IC chips at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with built-in driver IC chips at the starting point; In the second positive direction, the data input pin of the LED display device with a built-in driver IC chip adjacent to the orthogonal point receives the driving signal of the processor, and between the adjacent LED display devices with built-in driver IC chips arranged along the second positive direction, starting from the LED display device with a built-in driver IC chip adjacent to the orthogonal point, the data output pin of the LED display device with a built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with a built-in driver IC chip at the starting point; In the second negative direction, the data input pin of the LED display device with a built-in driver IC chip adjacent to the orthogonal point receives the driving signal of the processor, and between the adjacent LED display devices with built-in driver IC chips arranged along the second negative direction, starting from the LED display device with a built-in driver IC chip adjacent to the orthogonal point, the data output pin of the LED display device with a built-in driver IC chip at the starting point among the two adjacent LED display devices with built-in driver IC chips is connected to the data input pin of the LED display device with a built-in driver IC chip at the starting point.

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