Method for implementing touch function on display lamp array, analog front end, display board and electronic cigarette

Abstract

The present invention discloses a method, an analog front end, a display board and an electronic cigarette for implementing a touch function on a display light array, which relates to the technical field of electronic cigarette display control. The steps of the present invention are as follows: divide the display lights of the display light array into multiple groups according to the number of touch functions possessed by the display light array, and configure signal transmission ports for the display lights of each group according to the corresponding lighting modes; when the current lighting cycle arrives, turn on the display lights of multiple groups simultaneously, and after the display lights are turned on, merge the signal transmission ports belonging to the same group together; during the touch function detection cycle corresponding to the current lighting cycle, perform self-capacitance detection on the merged signal transmission ports respectively; after the touch function detection cycle ends, unmerge the merged signal transmission ports and wait for the arrival of the next lighting cycle. The present invention directly implements the touch function on the display light array, reducing the cost and improving the user experience.

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:

[0007] A method for implementing a touch function on a display light array provided by the present invention includes the following steps:

[0008] Divide the display lights of the display light array into multiple groups according to the number of touch functions of the display light array, and configure signal transmission ports for the display lights of each group according to the corresponding lighting patterns;

[0009] When the current lighting cycle arrives, turn on the display lights of the multiple groups simultaneously. After the display lights are turned on, merge the signal transmission ports belonging to the same group together;

[0010] During the touch function detection cycle corresponding to the current lighting cycle, perform self-capacitance detection on the merged signal transmission ports respectively, and start the touch function of the corresponding group according to the detected self-capacitance;

[0011] After the touch function detection cycle ends, unmerge the merged signal transmission ports and wait for the arrival of the next lighting cycle.

[0012] In some embodiments, the lighting pattern includes a forward and reverse push pattern. According to the forward and reverse push pattern, configuring signal transmission ports for the display lights of each group includes the following steps:

[0013] The display lights in each group form an n*m array, and n+1 signal transmission ports are configured in sequence in the row direction; 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 respectively connected to the other n signal transmission ports of the unconnected display lights in sequence; the positive or negative poles of the display lights between each column are connected to different signal transmission ports; where m=n or m=n+1.

[0014] In some embodiments, the lighting pattern includes a COM-SEG pattern. According to the COM-SEG pattern, configuring signal transmission ports for the display lights of each group includes the following steps:

[0015] The display lights in each group are arranged in an m*n array, and m COM ports are configured in sequence in the row direction and n SEG ports are configured in sequence in the column direction;

[0016] The positive pole of the display light in the i-th row and the j-th column is connected to the j-th SEG port, and its negative pole is connected to the i-th COM port; where i=1,2,…,m, j=1,2,…,n.

[0017] In some embodiments, the method for implementing a touch function on a display light array further includes, when the number of display lights of the display light array exceeds a threshold, dividing the display lights into those with touch functions and those without touch functions, and performing the method for implementing a touch function on the display light array formed by the display lights with touch functions.

[0018] In some embodiments, the metal filament, metal base, lamp housing of the display lamp, and the wiring connecting the display lamp form a sensor capable of sensing changes in the external self-capacitance.

[0019] As a common inventive concept, the present invention also provides an analog front end for implementing a touch function on a display lamp array, including a switch array, a self-capacitance detection unit, and a display lamp control unit. One end of the switch array is used to connect to the display lamp array divided into multiple blocks, and the other end is respectively connected to the self-capacitance detection unit and the display lamp control unit; the display lamps within each block are respectively configured with signal transmission ports, and through the switch array, the signal transmission ports within each block can be merged and then connected to the self-capacitance detection unit, and the corresponding touch button function is realized through the self-capacitance detection unit.

[0020] In some embodiments, the self-capacitance detection unit includes an operational amplifier and a digital-to-analog conversion module. The input end of the operational amplifier is connected to the switch array, and its output end is connected to the digital-to-analog conversion module; the display lamp control unit includes 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.

[0021] As a common inventive concept, the present invention also provides a display board for implementing a touch function on a display lamp array, including a main control chip, a lamp driver and touch chip, and a display lamp array with touch function. The main control chip, the lamp driver and touch chip, and the display lamp array are connected in sequence, and the lamp driver and touch chip include the analog front end described above.

[0022] In some embodiments, the display board further includes a lamp driver chip, and the lamp driver chip is connected to the lamp driver and touch chip; the display lamp array includes a display lamp array with touch function and a display lamp array without touch function, and the lamp driver chip is also connected to the display lamp array without touch function.

[0023] As a common inventive concept, the present invention also provides an electronic cigarette, including the display board for implementing a touch function on the display lamp array described above, and implementing the method for implementing a touch function on the display lamp array described above through the display board.

[0024] Implementing one of the above technical solutions of the present invention has the following advantages or beneficial effects:

[0025] The present invention realizes the touch function (such as the hovering touch function) directly on a display light array (such as LED lights, LCD lights, etc.) without using physical buttons, switches or touch springs. Moreover, the number and position of the touch buttons can be freely controlled to realize touch functions such as hovering click, left and right sliding, up and down sliding on the display light array, and functions such as power on / off, child lock, function setting, and switching display information can be completed conveniently and quickly. Since the physical buttons and switches are removed, the cost of related products is reduced and the integrity of the structural design is ensured, which is more conducive to designs with requirements such as waterproofing, and brings a brand-new experience to users. The method, analog front end, and display board of the present invention can be widely applied to electronic cigarettes, digital and electronic products, smart homes, etc. with dot matrix screens, further reducing the cost of related products and enhancing the user experience of related products. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. In the drawings:

[0027] Figure 1 is a flowchart of a method for realizing a touch function on a display light array according to an embodiment of the present invention;

[0028] Figure 2 is a diagram showing the GPIO port configuration of the LED lights in a 6*7 block in the positive and negative push lighting mode according to an embodiment of the present invention;

[0029] Figure 3 is a diagram showing the GPIO port configuration of the LED lights in a 7*6 block in the COM-SEG lighting mode according to an embodiment of the present invention;

[0030] Figure 4 is a diagram showing the block division and GPIO port configuration of a circular light array according to an embodiment of the present invention;

[0031] Figure 5 is a diagram showing the block division of a circular three-color light array according to an embodiment of the present invention;

[0032] 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;

[0033] Figure 7 is a schematic diagram of the pins of an analog front end chip corresponding to a circular light array (divided into three blocks) according to an embodiment of the present invention;

[0034] Figure 8It is a schematic structural diagram of a display board for implementing a touch function on a display lamp array according to an embodiment of the present invention;

[0035] Figure 9 It is a schematic structural diagram of another display board for implementing a touch function on a display lamp array according to an embodiment of the present invention. Detailed implementation manners

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, various exemplary embodiments to be described below will refer to the corresponding drawings, which form a part of the exemplary embodiments and describe various exemplary embodiments that may be adopted to implement the present invention. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. It should be understood that they are only examples of processes, methods, devices, etc. consistent with some aspects of the present invention disclosed in detail in the appended claims. Other embodiments may also be used, or structural and functional modifications may be made to the embodiments listed herein without departing from the scope and essence of the present invention.

[0037] In the description of the present invention, it should be understood that terms such as "center", "longitudinal direction", "lateral direction", etc. indicate the orientation or positional relationship based on the orientation shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the element referred to must have a specific orientation, be constructed and operated in a specific orientation. Terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. The meaning of the term "plurality" is two or more. The terms "connected" and "connected" should be understood in a broad sense. For example, it may 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 may be the internal communication of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more of the 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 specific circumstances.

[0038] In order to illustrate the technical solutions described in the present invention, the following will be described through specific embodiments, and only the parts related to the embodiments of the present invention are shown.

[0039] Embodiment 1: As Figure 1 shown, the present invention provides a method for implementing a touch function on a display lamp array, including the following steps:

[0040] 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;

[0041] 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;

[0042] 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;

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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:

[0047] 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.

[0048] Based on the above embodiments, in one case: The display lights within each block form an n*m array, and n+1 signal transmission ports are sequentially configured in the row direction; the anodes of the display lights in each column are all connected to the same signal transmission port, the cathodes of the display lights in each column are respectively connected to the other n signal transmission ports that are not connected to the display lights in sequence, and the anodes of the display lights between each column are connected to different signal transmission ports.

[0049] In another case: The display lights within each block form an n*m array, and n+1 signal transmission ports are sequentially configured in the row direction; the cathodes of the display lights in each column are all connected to the same signal transmission port, the anodes of the display lights in each column are respectively connected to the other n signal transmission ports that are not connected to the display lights in sequence, and the cathodes of the display lights between each column are connected to different signal transmission ports.

[0050] Taking the first case above as an example, according to the forward and reverse deduction mode, configuring signal transmission ports for the display lights of each block includes the following steps:

[0051] The display lights within each block are arranged in an n*m array, and n+1 signal transmission ports are sequentially configured in the row direction;

[0052] When n=m, the anode of each display light in the i-th column is connected to the i-th signal transmission port in the row direction, and the cathode 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;

[0053] When m=n+1, the anode of each display light in the i-th column is connected to the i-th signal transmission port in the row direction, and the cathode 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 anode of each display light in the (n+1)-th column is connected to the (n+1)-th signal transmission port in the row direction, and the cathode 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.

[0054] Based on the above embodiments, the lighting mode can also include the COM-SEG (Common-Segment) mode. According to the COM-SEG mode, configuring signal transmission ports for the display lights of each block includes the following steps:

[0055] The display lights within each block are arranged in an m*n array, and m COM ports are sequentially configured in the row direction and n SEG ports are sequentially configured in the column direction;

[0056] The anode of the display light in the i-th row and j-th column is connected to the j-th SEG port, and its cathode is connected to the i-th COM port; where i=1,2,…,m, j=1,2,…,n.

[0057] It should be noted that the signal transmission ports in this embodiment include, but are not limited to, GPIO (General-purpose input / output) ports.

[0058] As Figures 2 - 3 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 126 lights. Then, the 126 lights are divided into 3 chunks, with 42 lights in each chunk, forming a 6*7 array. According to the above embodiment, to light 42 lights, 7 GPIO ports can be used in the positive and negative push mode, or 13 GPIO ports (7*6 array) can be used in the COM-SEG mode. Figure 2 The figure shows the lighting mode as the positive and negative push mode. Each chunk is configured with 7 GPIO ports in the row direction, which are LED0-LED6 from top to bottom. Figure 3 The figure shows the lighting mode as the COM-SEG mode. Each chunk is configured with 13 GPIO ports. Among them, there are 7 COM ports from top to bottom in the row direction, which are COM6-COM0 respectively, and 6 SEG ports from left to right in the column direction, which are SEG0-SEG5 respectively.

[0059] It should be noted that the advantage of lighting in the positive and negative push mode is that the number of GPIO ports required is small, the disadvantage is that the lighting speed is slow, and there is also a certain upper limit on the number of lights. Currently, it is the mainstream in the design of the electronic cigarette light array. 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 in the case of a relatively large number of lights, such as a three-color LED light array (the number of lights is more than 300). The specific mode can be selected based on the above advantages and disadvantages, which will not be elaborated here.

[0060] Of course, based on the different shapes of electronic cigarette products, the shapes of their display light arrays are also different. The common arrangement shape of the light array is rectangular, and the divided light array chunks can also be matrix arrays. In addition, there are circular light arrays. Based on the circle, the divided light array can be arranged in a fan shape. The Figure 2 or Figure 3 display lights arranged in a matrix in can be converted into a fan shape arrangement through the order of rows or columns, thereby forming fan-shaped chunks.

[0061] As Figure 4 shown, taking the circular light array as an example, the light array has 126 lights, and it is necessary to implement 3 touch button functions on 126 lights. Then, the 126 lights are divided into 3 chunks with similar sizes (the 6*7 array in is arranged in a corresponding fan-shaped array block according to the row order), with 42 lights in each chunk, and the lights in each chunk are designed with the same group of LEDs. The lights in the middle of two chunks are alternately placed with the LEDs of two corresponding groups. As Figure 2 inFigure 4 The lights on the chunk dividing line. The display lights on the dividing line are arranged alternately by the lights of two chunks. In this way, the number of LEDs in the three fan-shaped chunks is kept basically the same.

[0062] When there are a large number of LED lights, such as a color light group board, three-color lights need to be used, and the number of GPIOs required is three times that of single-color lights. Based on this, this method also includes that when the number of display lights in the display light array exceeds the threshold, the display lights are divided into those with touch functions and those without touch functions, and the method for implementing the touch function on the display light array is executed on the display light array composed of display lights with touch functions.

[0063] As Figure 5 shown, it is a light board pattern composed of three-color lights. Areas 1 and 3 are divided into two groups of GPIOs by a light driver + touch chip to control, and the three-color lights in Areas 2 and 4 are controlled by a light driver chip. In this way, the touch click function at the positions of Areas 1 and 3 can be realized, and the left and right sliding functions between Areas 1 and 3 can be realized.

[0064] As a further implementation manner, the metal filament, metal base, lamp shell of the display light, and the wire connecting the display lights form a sensor capable of sensing the change of the external self-capacitance. For example, the metal filament, metal base, lamp shell of the LED light, and the wire connecting the LED lights form a sensor for sensing the change of the external self-capacitance. When a finger clicks or slides at the corresponding position of the LED, or makes a click or slide gesture with the finger suspended at the corresponding position of the LED, it will cause a change in the capacitance of this sensor to the ground. Then, the change of this capacitance is detected by the self-capacitance detection unit inside the chip. When it exceeds the preset threshold, it is determined that a touch action has occurred. Furthermore, the touch or suspended touch function is directly realized on the LED light array.

[0065] Embodiment 2: As Figure 6 shown, as the same inventive concept, this embodiment provides an analog front end for implementing 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 to the GPIO port of the display light array divided into multiple chunks, and the other end is respectively connected to the self-capacitance detection unit 502 and the display light control unit 503.

[0066] Based on the above embodiment, each display light in each chunk is respectively configured with a signal transmission port (LED0-LEDn in the legend, where n is the total number of the display light array in this embodiment). Through the switch array 501, the signal transmission ports in each chunk can be merged, 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.

[0067] The self-capacitance detection unit 502 includes an operational amplifier and a digital-to-analog conversion module. The input terminal of the operational amplifier is connected to the switch array 501, and its output terminal is connected to the digital-to-analog conversion module. The display lamp control unit 503 includes 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 501.

[0068] It should be noted that the analog front end of this embodiment can meet the following conditions:

[0069] All GPIO ports of the analog front end have touch button and constant current control functions and can be switched arbitrarily;

[0070] All GPIO ports can be controlled by software, and some of these GPIO ports can be arbitrarily selected and merged and the merging of these GPIO ports can be cancelled;

[0071] The constant current control of the GPIO port can be configured with different current magnitudes by software to meet different lamp types;

[0072] The touch function (touch button) uses the self-capacitance detection mode and can be configured with different sensitivities;

[0073] When the GPIO port implements the LED lamp function, it can support the forward and reverse push lighting modes and also support the COM-SEG lighting mode.

[0074] As Figure 7 shown, with further reference to Figure 4 shown, taking the circular LED lamp array of an electronic cigarette as an example, a pin schematic diagram of the analog front end chip U1 is provided. This circular lamp array has 126 lamps, and three touch button functions need to be implemented on 126 lamps. This example uses the forward and reverse push mode to implement. 42 lamps use 7 GPIOs, and 126 lamps require 7 * 3 = 21 GPIOs. The GPIO ports of the lamp array control chip are divided into three parts, and the GPIO ports of each part are adjacent. In the figure, chip pins 4, 3, 2, 1, 32, 31, 30 are respectively connected to Figure 4 the GPIO ports LED0-1, LED1-1, LED2-1, LED3-1, LED4-1, LED5-1, LED6-1 of block 1 in Figure 4 ; chip pins 25, 24, 23, 22, 21, 20, 19 are respectively connected to Figure 4The GPIO ports of the middle chunk 3: LED0-3, LED1-3, LED2-3, LED3-3, LED4-3, LED5-3, LED6-3. The implementation of the touch function on the display lamp array in this embodiment is the same as that in the first embodiment, and will not be elaborated here.

[0075] Embodiment 3: As Figure 8 shown, as the same inventive concept, this embodiment provides a display board for implementing a touch function on a display lamp array, including a main control chip 601, a lamp driver and touch chip 602, and a display lamp array 603 with touch function. The main control chip 601, the lamp driver and touch chip 602, and the display lamp array 603 are connected in sequence. Among them, the lamp driver and touch chip 602 includes the analog front end described in the second embodiment.

[0076] As Figure 9 shown, when the number of LED lights is very large, such as a color lamp group board, three-color lights need to be used, and the required GPIO needs to be increased by 3 times compared to monochromatic lights. Based on this, the display board of this embodiment further includes a lamp driver chip 604, and the lamp driver chip 604 is connected to the lamp driver and touch chip 602; the display lamp array includes a display lamp array 603 with touch function and a display lamp array 605 without touch function, and the lamp driver chip 604 is also connected to the display lamp array 605 without touch function. The implementation of the touch function on the display lamp array in this embodiment is the same as that in the first embodiment, and will not be elaborated here.

[0077] Embodiment 4: As the same inventive concept, this embodiment provides an electronic cigarette, including the display board that implements the touch function on the display lamp array described in Embodiment 3, and implements the method of implementing the touch function on the display lamp array described in Embodiment 1 through the display board. For details, refer to Embodiment 1 and Embodiment 3, and will not be elaborated here.

[0078] It should be understood that although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the arrows, these steps do not necessarily need to be executed in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the processes involved in the above embodiments may include multiple steps or multiple stages. These steps or stages do not necessarily need to be executed at the same moment, but can be executed at different moments. The execution order of these steps or stages does not necessarily need to be sequential, but can be executed alternately or alternately with at least a part of other steps or steps or stages in other steps.

[0079] The above are only the preferred embodiments of the present invention. Those skilled in the art will know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present invention. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by 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; Each block corresponds to at least one touch function; 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 over, the merged signal transmission ports are unmerged, and the next lighting cycle is awaited; The metal filament, metal base, lamp housing and wiring connecting the display light constitute a sensor that can sense changes in external self-capacitance. When a finger clicks or slides at a corresponding position of the display light array, or a finger is suspended in the air at a corresponding position of the display light array to make a click or slide gesture, it will cause a change in the capacitance to ground at the corresponding position of the display light array. When it exceeds a preset threshold, it is determined that a touch action has occurred, and then the touch or suspended touch function is directly implemented on the display light array.

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. An analog front end, characterized in that: A method for realizing a touch function on a display light array as claimed in any one of claims 1 to 4, 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 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. 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.

6. The analog front end according to claim 5, 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.

7. 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 5 to 6.

8. A display panel according to claim 7, 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.

9. An electronic cigarette, characterized in that: A display panel for realizing a touch function on a display light array as described in any one of claims 7 to 8, and a method for realizing a touch function on a display light array as described in any one of claims 1 to 4 are implemented by means of the display panel.

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