Method for realizing touch function on display lamp array, analog front end, display panel and electronic cigarette

Abstract

The invention discloses a method for realizing a touch function on a display lamp array, an analog front end, a display panel and an electronic cigarette, and relates to the technical field of electronic cigarette display control. The method comprises the following steps: dividing display lamps of a display lamp array into a plurality of blocks according to the number of touch functions of the display lamp array, and configuring a signal transmission port for the display lamp of each block according to a corresponding lighting mode; when the current lighting cycle arrives, the display lamps of the multiple blocks are turned on at the same time, and after the display lamps are turned on, the signal transmission ports belonging to the same block are combined together; in a touch function detection period corresponding to the current lighting period, self-capacitance detection is carried out on the combined signal transmission ports; and after the touch function detection period is finished, removing the combination of the combined signal transmission ports, and waiting for the arrival of the next lighting period. According to the invention, the touch function is directly realized on the display lamp array, the cost is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen touch control, and in particular to a method for realizing a touch function on a display light array, an analog front end, a display panel and an electronic cigarette. Background Art

[0002] With the development of electronic cigarette technology, the display function has evolved from a single LED (Light Emitting Diode) lamp, LED lamp group, digital tube, TFT (Thin Film Transistor) display screen, and even various starlight screens or 3D curved display screens composed of LED dot matrix screens. The so-called dot matrix screen uses multiple small dot matrices to represent information. Each small dot matrix can emit a light or dark signal by controlling the corresponding light-emitting diode or light-emitting tube to generate different information such as text, pictures, animations, etc. The number of LED lights on the entire display screen ranges from dozens to hundreds, and the colors include monochrome lights or color LED lights composed of 3-color LEDs.

[0003] As for the input interaction function of electronic cigarettes, traditional LED light display electronic cigarettes generally use physical buttons or toggle switches to realize it, which are used for power on and off, function setting, switching display information, etc. TFT display screens generally have touch screen functions, which can realize click or slide functions on the entire display screen. The touch function is realized by a special touch screen chip. There are also a small number of electronic cigarettes that use LED displays, which use a special touch button chip to realize one or more touch button functions, and the touch sensor generally uses a touch spring.

[0004] Although TFT screen electronic cigarettes with touch screens can achieve complex and colorful picture display and convenient and fast touch input, the overall cost is relatively high, and the proportion of electronic cigarettes in the market share is not large. Most electronic cigarettes use various LED light groups, digital tubes, LED light arrays and other display units composed of LEDs, and the input interaction functions corresponding to such LED display units are very simple and can only be achieved by means of physical buttons, switches or touch springs. Due to cost, structure and other reasons, these buttons are generally few in number, and the input operation is very inconvenient and intuitive. Summary of the invention

[0005] The purpose of the present invention is to provide a method for realizing a touch function on a display light array, an analog front end, a display panel and an electronic cigarette to solve the above technical problems. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0006] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a method for realizing a touch function on a display light array, comprising the following steps: According to the number of touch functions of the display light array, the display lights of the display light array are divided into a plurality of blocks, and according to the corresponding lighting mode, a signal transmission port is configured for the display lights of each block; When the current lighting cycle arrives, the display lights of the multiple blocks are turned on at the same time, and after the display lights are turned on, the signal transmission ports belonging to the same block are merged together; In a touch function detection period corresponding to the current lighting period, self-capacitance detection is performed on the merged signal transmission ports respectively, and the touch function of the corresponding block is activated according to the detected self-capacitance; After the touch function detection cycle is finished, the merged signal transmission ports are unmerged, and the next lighting cycle is awaited.

[0007] In some embodiments, the lighting mode includes a forward and reverse push mode. According to the forward and reverse push mode, configuring a signal transmission port for the display light of each block includes the following steps: The display lights in each of the blocks form an n*m array, with n+1 signal transmission ports arranged in sequence from row to row; the positive or negative pole of the display lights in each column is connected to one signal transmission port, and its negative or positive pole is connected in sequence to the other n signal transmission ports that are not connected to the display lights; the positive or negative pole of the display lights between each column is connected to different signal transmission ports; wherein, m=n or m=n+1.

[0008] In some embodiments, the lighting mode includes a COM-SEG mode. According to the COM-SEG mode, configuring a signal transmission port for the display light of each block includes the following steps: The display lights in each of the blocks are arranged in an m*n array, with m COM ports arranged in sequence in the rows and n SEG ports arranged in sequence in the columns; The positive electrode of the display light in the i-th row and j-th column is connected to the j-th SEG port, and the negative electrode thereof is connected to the i-th COM port; where i=1,2,…,m, j=1,2,…,n.

[0009] In some embodiments, the method for implementing a touch function on a display light array further includes dividing the display lights into those with touch function and those without touch function when the number of display lights in the display light array exceeds a threshold, and executing the method for implementing a touch function on the display light array on the display light array composed of display lights with touch function. In some embodiments, the metal filament, metal base, lamp housing of the display light and the wiring connecting the display light constitute a sensor capable of sensing changes in external self-capacitance.

[0010] As a common inventive concept, the present invention also provides an analog front end for realizing a touch function on a display light array, including a switch array, a self-capacitance detection unit, and a display light control unit. One end of the switch array is used to connect a display light array divided into a plurality of blocks, and the other end is respectively connected to the self-capacitance detection unit and the display light control unit; the display lights in each block are respectively configured with signal transmission ports, and the signal transmission ports in each block can be merged through the switch array and connected to the self-capacitance detection unit after merging, and the corresponding touch button function is realized through the self-capacitance detection unit.

[0011] In some embodiments, the self-capacitance detection unit includes an op amp and a digital-to-analog conversion module, the input end of the op amp is connected to the switch array, and the output end is connected to the digital-to-analog conversion module; the display light control unit includes a constant current control module and a timing control module, and the constant current control module and the timing control module are both connected to the switch array.

[0012] As a common inventive concept, the present invention also provides a display panel for realizing a touch function on a display light array, comprising a main control chip, a light driver and a touch chip, and a display light array with a touch function, wherein the main control chip, the light driver and the touch chip, and the display light array are connected in sequence, and the light driver and the touch chip include the analog front end described above.

[0013] In some embodiments, the display panel further includes a lamp driver chip, which connects the lamp driver and touch chip; the display light array includes a display light array with touch function and a display light array without touch function, and the lamp driver chip is also connected to the display light array without touch function.

[0014] As a common inventive concept, the present invention further provides an electronic cigarette, including the display panel for realizing the touch function on the display light array as described above, and the method for realizing the touch function on the display light array as described above is realized by the display panel. Implementing one of the above technical solutions of the present invention has the following advantages or beneficial effects: The present invention does not use physical buttons, switches or touch springs, and directly realizes the touch function (such as the function of suspended touch) on the display light array (such as LED lights, LCD lights, etc.). Moreover, the number and position of the touch buttons can be controlled at will to realize the touch functions such as suspended click, left and right sliding, up and down sliding on the display light array, and can conveniently and quickly complete the functions of power on and off, child lock, function setting, switching display information, etc. Since the physical buttons and switches are removed, the cost of related products is reduced and the integrity of the structural design is guaranteed, which is more conducive to the design of waterproof requirements, and brings a new experience to users. The method, analog front end, and display panel of the present invention can be widely used in the fields of electronic cigarettes, digital and electronic products, smart homes, etc. with dot matrix screens, further reducing the cost of related products and improving the user experience of related products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. It is obvious that the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings: Figure 1 is a flow chart of a method for realizing a touch function on a display light array according to an embodiment of the present invention; Figure 2 This is a diagram of the GPIO port configuration of the LED lamp in the 6*7 block in the forward and reverse push lighting mode of the embodiment of the present invention; Figure 3 It is a diagram of the GPIO port configuration of the LED lamp in the 7*6 block in the COM-SEG lighting mode of an embodiment of the present invention; Figure 4 It is a diagram showing the division of circular light array blocks and the configuration of GPIO ports according to an embodiment of the present invention; Figure 5 1 is a diagram showing the division of the circular three-color light array blocks according to an embodiment of the present invention; Figure 6 is a schematic structural diagram of an analog front end for realizing a touch function on a display light array according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the pins of the analog front-end chip corresponding to the circular light array (divided into three blocks) of an embodiment of the present invention; Figure 8 is a schematic structural diagram of a display panel for realizing a touch function on a display light array according to an embodiment of the present invention; Fig. 9 It is a schematic structural diagram of another display panel for realizing a touch function on a display light array according to an embodiment of the present invention. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention clearer, the various exemplary embodiments to be described below will refer to the corresponding drawings, which constitute a part of the exemplary embodiments, wherein various exemplary embodiments that may be used to implement the present invention are described. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with the present disclosure. It should be understood that they are only examples of processes, methods, devices, etc. that are consistent with some aspects of the present disclosure as detailed in the attached claims, and other embodiments may also be used, or the embodiments listed herein may be modified in structure and function without departing from the scope and essence of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", etc. indicate the orientation or positional relationship based on the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the elements referred to must have a specific orientation, be constructed and operated in a specific orientation. The terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "multiple" means two or more. The terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a communication connection, a direct connection, an indirect connection through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more related listed items. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0018] In order to illustrate the technical solution of the present invention, a specific embodiment is used below for description, and only the parts related to the embodiment of the present invention are shown.

[0019] Embodiment 1: Figure 1 As shown, the present invention provides a method for realizing a touch function on a display light array, comprising the following steps: S100, dividing the display lights of the display light array into a plurality of blocks according to the number of touch functions of the display light array, and configuring a signal transmission port for the display lights of each block according to a corresponding lighting mode; S200, when the current lighting cycle arrives, turning on the display lights of multiple blocks at the same time, and after the display lights are turned on, merging the signal transmission ports belonging to the same block together; S300, in a touch function detection cycle corresponding to the current lighting cycle, performing self-capacitance detection on the combined signal transmission ports respectively, and starting the touch function of the corresponding block according to the detected self-capacitance; S400: After the touch function detection cycle is over, the merged signal transmission ports are unmerged, and the next lighting cycle is awaited. When the next lighting cycle arrives, the process returns to step S200, and steps S200 to S400 are performed in sequence.

[0020] Based on the above embodiments, this method does not use physical buttons, switches or touch springs, etc., and directly realizes the touch function (especially, such as the function of suspended touch) on the display light array (such as LED lights, LCD lights, etc.). Moreover, the number and position of the touch buttons can be controlled at will to realize the touch functions such as suspended click, left and right sliding, up and down sliding on the display light array, and can conveniently and quickly complete the functions of power on and off, child lock, function setting, switching display information, etc. Since the physical buttons and switches are removed, the cost of related products is reduced and the integrity of the structural design is guaranteed, which is more conducive to the design of waterproof requirements, and brings a new experience to users. This method can be widely used in the fields of electronic cigarettes, digital and electronic products, smart homes, etc. with dot matrix screens, further reducing the cost of related products and improving the user experience of related products.

[0021] In a specific example, a complete lighting cycle is controlled within 16ms to prevent the LED light from flickering. Each touch function detection cycle is 0.5ms, and the touch function detection cycle is equal to the number of touch functions multiplied by each touch function detection cycle.

[0022] Based on the above embodiment, the lighting mode includes forward and reverse push modes. According to the forward and reverse push modes, configuring a signal transmission port for the display light of each block includes the following steps: The display lights in each block form an n*m array, and n+1 signal transmission ports are sequentially configured in the row upward; the positive or negative poles of the display lights in each column are connected to the same signal transmission port, and their negative or positive poles are sequentially connected to the n signal transmission ports that are not connected to the display lights, and the positive or negative poles of the display lights between each column are connected to different signal transmission ports. Among them, m=n or m=n+1.

[0023] Based on the above embodiment, one situation is: the display lights in each block form an n*m array, and n+1 signal transmission ports are configured in sequence from row to row; the positive poles of the display lights in each column are connected to the same signal transmission port, the negative poles of the display lights in each column are connected in sequence to the other n signal transmission ports that are not connected to the display lights, and the positive poles of the display lights between each column are connected to different signal transmission ports.

[0024] Another situation is: the display lights in each block form an n*m array, and n+1 signal transmission ports are configured in sequence from row to row; the negative poles of the display lights in each column are connected to the same signal transmission port, the positive poles of the display lights in each column are connected in sequence to the other n signal transmission ports that are not connected to the display lights, and the negative poles of the display lights between each column are connected to different signal transmission ports.

[0025] Taking the first case as an example, according to the forward and reverse push modes, the signal transmission port is configured for the display light of each block, including the following steps: The display lights in each block are arranged in an n*m array, and n+1 signal transmission ports are sequentially configured in the row upwards; When n=m, the positive electrode of each display light in the i-th column is connected to the i-th signal transmission port in the row, and the negative electrode of each display light in the i-th column is sequentially connected to the other n signal transmission ports except the i-th signal transmission port; When m=n+1, the positive electrode of each display light in the i-th column is connected to the i-th signal transmission port upward in the row, and the negative electrode of each display light in the i-th column is sequentially connected to the other n signal transmission ports except the i-th signal transmission port; the positive electrode of each display light in the n+1-th column is connected to the n+1-th signal transmission port upward in the row, and the negative electrode of each display light in the n+1-th column is sequentially connected to the other n signal transmission ports except the n+1-th signal transmission port; where i=1,2,…,n.

[0026] Based on the above embodiment, the lighting mode may further include a COM-SEG (common end-scan end) mode. According to the COM-SEG mode, a signal transmission port is configured for the display light of each block, including the following steps: The display lights in each block are arranged in an m*n array, with m COM ports arranged in sequence in the rows and n SEG ports arranged in sequence in the columns; The positive electrode of the display light in the i-th row and j-th column is connected to the j-th SEG port, and the negative electrode thereof is connected to the i-th COM port; wherein, i=1,2,…,m, j=1,2,…,n.

[0027] It should be noted that the signal transmission port of this embodiment includes but is not limited to a GPIO (General-purpose input / output) port.

[0028] like Figure 2-Figure 3As shown, as an example, taking the LED light array of an electronic cigarette as an example, the light array has 126 lights, and it is necessary to implement 3 touch button functions on the 126 lights, then the 126 lights are divided into 3 blocks, each block has 42 lights, forming a 6*7 array. According to the above embodiment, to realize the lighting of 42 lights, 7 GPIO ports can be used in forward and reverse push mode, or 13 GPIO ports (7*6 array) can be used in COM-SEG mode. Figure 2 The diagram shows that the lighting mode is the forward and reverse push mode, and each block is configured with 7 GPIO ports in the row direction, namely LED0-LED6 from top to bottom. Figure 3 The diagram shows that the lighting mode is COM-SEG mode. Each block is configured with 13 GPIO ports, of which there are 7 COM ports from top to bottom in the row direction, namely COM6-COM0, and there are 6 SEG ports from left to right in the column direction, namely SEG0-SEG5.

[0029] It should be noted that the advantage of the forward and reverse push mode is that it requires fewer GPIO ports, but the disadvantage is that the lighting speed is slow and the number of lights has a certain upper limit. It is currently the mainstream in the design of electronic cigarette light arrays. The advantage of the COM-SEG mode is that the lighting speed is fast, but the number of GPIO ports used is large. It is used when there are a large number of lights, such as the LED light array of three-color lights (the number of lights is more than 300). The choice of specific mode can be selected based on the above advantages and disadvantages, and I will not go into details here.

[0030] Of course, based on the different shapes of electronic cigarette products, the shapes of the display light arrays are also different. The common light array arrangement shape is rectangular, and the light array blocks divided can also be matrix arrays. In addition, there are circular light arrays. Based on the circular shape, the light array blocks can be arranged in a fan shape. Figure 2 or Figure 3 The display lights in the matrix arrangement are converted into a fan arrangement through the order of rows or columns to form fan-shaped blocks.

[0031] like Figure 4 As shown in the figure, a circular light array is taken as an example. The light array has 126 lights. If three touch button functions need to be implemented on the 126 lights, the 126 lights are divided into three blocks of similar size ( Figure 2 The 6*7 array in the figure is arranged into corresponding fan-shaped array blocks in row order). Each block has 42 lights, and the lights in each block are designed with the same group of LEDs. The lights in the middle of the two blocks are placed alternately with two corresponding groups of LEDs, such as Figure 4 The lights on the dividing line of the blocks. The display lights on the dividing line are arranged alternately by the lights of the two blocks. In this way, the number of LEDs in the three fan-shaped blocks remains basically the same.

[0032] When there are many LED lights, such as a color light group board, three-color lights are needed, and the required GPIO must be increased by 3 times compared to single-color lights. Based on this, the method also includes dividing the display lights into those with touch function and those without touch function when the number of display lights in the display light array exceeds a threshold, and performing the above method of realizing touch function on the display light array on the display light array composed of display lights with touch function. like Figure 5 As shown, it is a light board pattern composed of three-color lights. Area 1 and area 3 are controlled by light driver + touch chip divided into 2 groups of GPIO. The three-color lights in area 2 and area 4 are controlled by light driver chip. In this way, the touch and click function of area 1 and area 3 can be realized, and the left and right sliding function between area 1 and area 3 can be realized.

[0033] As a further implementation, the metal filament, metal base, lamp housing and wiring connecting the display lamp of the display lamp constitute a sensor capable of sensing changes in external self-capacitance. For example, the metal filament, metal base, lamp housing and wiring connecting the LED lamp of the LED lamp constitute a sensor capable of sensing changes in external self-capacitance. When a finger clicks or slides at the corresponding position of the LED, or when a finger is suspended in the air at the corresponding position of the LED to make a click or slide gesture, it will cause a change in the capacitance of the sensor to the ground, and then the change in capacitance is detected by the self-capacitance detection unit inside the chip. When it exceeds a preset threshold, it is determined that a touch action has occurred. In addition, the function of touch or suspended touch is directly implemented on the LED light array.

[0034] Embodiment 2: Figure 6 As shown, as the same inventive concept, this embodiment provides an analog front end for realizing a touch function on a display light array, including a switch array 501, a self-capacitance detection unit 502, and a display light control unit 503. Among them, one end of the switch array 501 is used to connect the GPIO port of the display light array divided into a plurality of blocks, and the other end is respectively connected to the self-capacitance detection unit 502 and the display light control unit 503.

[0035] Based on the above embodiments, the display lights in each block are respectively configured with signal transmission ports (LED0-LEDn in the figure, and n is the total number of display light arrays in this embodiment). The signal transmission ports in each block can be merged through the switch array 501, and after merging, they are connected to the self-capacitance detection unit 502, and the corresponding touch button function is realized through the self-capacitance detection unit 502.

[0036] The self-capacitance detection unit 502 includes an op amp and a digital-to-analog conversion module, the input end of the op amp is connected to the switch array 501, and the output end is connected to the digital-to-analog conversion module. The display light control unit 503 includes a constant current control module and a timing control module, both of which are connected to the switch array 501.

[0037] It should be noted that the analog front end of this embodiment can meet the following conditions: All GPIO ports of the analog front end have touch button and constant current control functions, and can be switched at will; All GPIO ports can be controlled by software, and some of them can be merged or unmerged at will; The constant current control of the GPIO port can be configured with different current sizes by software to meet the needs of different lamp types; The touch function (touch button) uses self-capacitance detection mode and can be configured with different sensitivities; When implementing the LED light function, the GPIO port can support forward and reverse push lighting mode, as well as COM-SEG lighting mode.

[0038] like Figure 7 As shown, further reference Figure 4 As shown in the figure, taking the circular LED light array of the electronic cigarette as an example, a pin diagram of the analog front-end chip U1 is provided. The circular light array has 126 lights, and 3 touch button functions need to be implemented on the 126 lights. This example uses the forward and reverse push mode to implement it. 42 lights use 7 GPIOs, and 126 lights require 7*3=21 GPIOs. The GPIO port of the light array control chip is divided into 3 parts, and the GPIO ports of each part are adjacent. In the figure, chip pins 4, 3, 2, 1, 32, 31, and 30 are connected respectively Figure 4 GPIO ports LED0-1, LED1-1, LED2-1, LED3-1, LED4-1, LED5-1, LED6-1 of block 1; chip pins 25, 24, 23, 22, 21, 20, 19 are connected to Figure 4 GPIO ports LED0-2, LED1-2, LED2-2, LED3-2, LED4-2, LED5-2, LED6-2 of block 2; chip pins 16, 15, 14, 13, 12, 11, 10 are connected to Figure 4 The GPIO ports LED0-3, LED1-3, LED2-3, LED3-3, LED4-3, LED5-3, and LED6-3 of the middle block 3. The implementation of the touch function on the display light array of this embodiment is consistent with that in the first embodiment, and will not be repeated here.

[0039] Embodiment 3: Figure 8As shown, as the same inventive concept, this embodiment provides a display panel for realizing a touch function on a display light array, including a main control chip 601, a light driver and touch chip 602, and a display light array 603 with a touch function, wherein the main control chip 601, the light driver and touch chip 602, and the display light array 603 are connected in sequence. Among them, the light driver and touch chip 602 include the analog front end described in the second embodiment.

[0040] like Fig. 9 As shown, when there are many LED lights, such as a color light group board, a three-color light is needed, and the required GPIO must be increased by 3 times compared to a single-color light. Based on this, the display board of this embodiment also includes a light driver chip 604, which connects the light driver and the touch chip 602; the display light array includes a display light array 603 with a touch function and a display light array 605 without a touch function, and the light driver chip 604 is also connected to the display light array 605 without a touch function. The touch function implemented on the display light array of this embodiment is consistent with that in the first embodiment, and will not be repeated here.

[0041] Embodiment 4: As the same inventive concept, this embodiment provides an electronic cigarette, including the display panel for realizing the touch function on the display light array described in Embodiment 3, and the method for realizing the touch function on the display light array described in Embodiment 1 is realized by the display panel. For details, please refer to Embodiment 1 and Embodiment 3, which will not be described here.

[0042] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flow involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0043] The above description is only the preferred embodiment of the present invention. It is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the present invention.

Claims

1. A method for realizing a touch function on a display light array, characterized in that: The steps include: According to the number of touch functions of the display light array, the display lights of the display light array are divided into a plurality of blocks, and according to the corresponding lighting mode, a signal transmission port is configured for the display lights of each block; When the current lighting cycle arrives, the display lights of the multiple blocks are turned on at the same time, and after the display lights are turned on, the signal transmission ports belonging to the same block are merged together; In a touch function detection period corresponding to the current lighting period, self-capacitance detection is performed on the merged signal transmission ports respectively, and the touch function of the corresponding block is activated according to the detected self-capacitance; After the touch function detection cycle is finished, the merged signal transmission ports are unmerged, and the next lighting cycle is awaited.

2. The method for realizing a touch function on a display light array according to claim 1, characterized in that: The lighting mode includes a forward and reverse thrust mode. According to the forward and reverse thrust mode, a signal transmission port is configured for the display light of each block, including the following steps: The display lights in each of the blocks form an n*m array, with n+1 signal transmission ports arranged in sequence from row to row; the positive or negative pole of the display lights in each column is connected to one signal transmission port, and its negative or positive pole is connected in sequence to the other n signal transmission ports that are not connected to the display lights; the positive or negative pole of the display lights between each column is connected to different signal transmission ports; wherein, m=n or m=n+1.

3. The method for realizing a touch function on a display light array according to claim 1, characterized in that: The lighting mode includes a COM-SEG mode. According to the COM-SEG mode, a signal transmission port is configured for the display light of each block, including the following steps: The display lights in each of the blocks are arranged in an m*n array, with m COM ports arranged in sequence in the rows and n SEG ports arranged in sequence in the columns; The positive electrode of the display light in the i-th row and j-th column is connected to the j-th SEG port, and the negative electrode thereof is connected to the i-th COM port; where i=1,2,…,m, j=1,2,…,n.

4. The method for realizing a touch function on a display light array according to claim 1, characterized in that: It also includes dividing the display lights into those with touch function and those without touch function when the number of display lights in the display light array exceeds a threshold, and executing the method of realizing the touch function on the display light array for the display light array composed of the display lights with touch function.

5. A method for realizing a touch function on a display light array according to any one of claims 1 to 4, characterized in that: The metal filament, metal base, lamp housing of the display lamp and the wiring connecting the display lamp constitute a sensor capable of sensing changes in external self-capacitance.

6. An analog front end, characterized in that: Used to realize the touch function on the display light array, comprising a switch array, a self-capacitance detection unit, and a display light control unit, wherein one end of the switch array is used to connect the display light array divided into a plurality of blocks, and the other end is respectively connected to the self-capacitance detection unit and the display light control unit; The display lights in each block are respectively configured with signal transmission ports. The signal transmission ports in each block can be merged through the switch array and connected to the self-capacitance detection unit after merging, and the corresponding touch button function is realized through the self-capacitance detection unit.

7. The analog front end according to claim 6, characterized in that: The self-capacitance detection unit includes an operational amplifier and a digital-to-analog conversion module, wherein the input end of the operational amplifier is connected to the switch array, and the output end thereof is connected to the digital-to-analog conversion module; The display light control unit comprises a constant current control module and a timing control module, and both the constant current control module and the timing control module are connected to the switch array.

8. A display panel, characterized in that it is used for A touch function is realized on a display light array, comprising a main control chip, a light driver and a touch chip, and a display light array with a touch function, wherein the main control chip, the light driver and the touch chip, and the display light array are connected in sequence, and the light driver and the touch chip comprise the analog front end described in any one of claims 6 to 7.

9. A display panel according to claim 8, characterized in that: It also includes a lamp driver chip, which is connected to the lamp driver and the touch chip; The display light array includes a display light array with a touch function and a display light array without a touch function, and the light driving chip is also connected to the display light array without a touch function.

10. An electronic cigarette, characterized in that: A display panel for realizing a touch function on a display light array as claimed in any one of claims 8 to 9, and a method for realizing a touch function on a display light array as claimed in any one of claims 1 to 5 are implemented by means of the display panel.

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