Method and system for realizing full-screen touch on display lamp array and electronic cigarette

Abstract

The invention discloses a method and system for achieving full-screen touch on a display lamp array and an electronic cigarette, and relates to the technical field of display screen touch control. The method comprises the following steps: dividing a display lamp array into a plurality of areas, and configuring a plurality of touch sensing channels in each area; respectively dividing the display lamp array and the plurality of touch sensing channels into a plurality of scanning areas according to a lighting mode of the display lamp array and the plurality of divided areas; according to the lighting mode of the display lamp array, signal transmission ports are configured for the display lamps and the touch sensing channels of each scanning area; in the signal scanning stage, when a certain scanning area is in the touch signal scanning stage, the driving signal of the display lamp in the scanning area is switched into a touch scanning synchronizing signal, and the display lamps, not in the touch signal scanning stage, in other scanning areas are lightened through the driving signal. The display lamp array and the touch sensing channel are on the same substrate, and touch and gesture sensing functions can be realized in a display area of the whole display lamp array bent into three surfaces.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen touch control, and particularly to a method, a system and an electronic cigarette for realizing full-screen touch on a display light array. Background Art

[0002] With the development of electronic technology, especially in the field of electronic cigarette applications, the display function has evolved from a single LED (Light Emitting Diode) lamp, an LED lamp group, a digital tube, a TFT (Thin Film Transistor) display screen, to 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 bright or dim signals by controlling the corresponding light-emitting diode or light-emitting tube, so as to generate different information such as characters, pictures, and animations. The number of LED lights on the entire display screen ranges from dozens to hundreds, and the colors include monochromatic lights or color LED lights composed of 3-color LEDs.

[0003] For the input interaction function of electronic cigarettes, traditional electronic cigarettes with LED displays generally use physical buttons or toggle switches to turn on and off, set functions, switch display information, etc., but these cannot directly implement touch functions on the LED display lights. In order to implement touch functions on the LED display light array, some electronic cigarette products directly transplant the touch screen solution on the TFT display screen and add a touch screen module ITO sensor (Indium Tin Oxide sensor), which is composed of an ITO sensor and a self-capacitance touch screen chip, so that relatively high-precision touch and gesture functions can be realized in the entire LED light display area.

[0004] Although the touch screen can achieve precise touch input on the LED light array of electronic cigarettes, the overall cost is relatively high. Moreover, the touch screen module composed of ITO sensors cannot be bent and is very unsuitable for the application of electronic cigarettes, because the LED dot matrix screens of general electronic cigarettes are designed with FPC (Flexible Printed Circuit) flexible boards and are bent into two 90° angles for three-sided display during use, which causes difficulties in touch screen design.

[0005] The display screen composed of an LED light array has a relatively low pixel count, generally with the number of lights within 200, while the pixel count of the touch screen solution using a TFT display screen is generally in the tens of thousands or more, and the resolutions do not match.

[0006] Therefore, there is an urgent need for a new technical solution that can accurately achieve the full-screen touch input function on LED light arrays of various quantities without using a touch screen module. Summary of the Invention

[0007] The object of the present invention is to provide a method, a system and an electronic cigarette for realizing full-screen touch on a display light array, so as to accurately achieve the full-screen touch input function on LED light arrays of various quantities without using a touch screen module. The preferred technical solutions among the many technical solutions provided by the present invention will be elaborated in detail below in terms of the many technical effects they can produce.

[0008] To achieve the above object, the present invention provides the following technical solutions: A method for realizing full-screen touch on a display light array provided by the present invention includes the following steps: Dividing the display light array into multiple regions, and configuring multiple touch sensing channels in each region; According to the lighting mode of the display light array and the divided multiple regions, dividing the display light array and the multiple touch sensing channels into multiple scan regions respectively; According to the lighting mode of the display light array, configuring signal transmission ports for the display lights and the touch sensing channels in each scan region respectively; In the signal scanning stage, when a certain scan region is in the touch signal scanning stage, switching the driving signal of the display lights in this scan region to a touch scanning synchronization signal, and lighting the display lights in other scan regions that are not in the touch signal scanning stage through the driving signal; Wherein, the display light array and the touch sensing channels are arranged on the same substrate.

[0009] In some embodiments, the pattern shape of each touch sensing channel is in the shape of a triangular sawtooth, and each sawtooth tip of the triangular sawtooth is arranged between two rows of display lights or between two columns of display lights in the corresponding region.

[0010] In some embodiments, the display light array is divided into n regions in the row direction, and m touch sensing channels are arranged in the column direction in each region; the n×m touch sensing channel regions and the regions between each touch sensing channel and its adjacent touch sensing channels form 2m - 1 coordinate segments in the row direction and 2n - 1 coordinate segments in the column direction; According to (2m - 1)×(2n - 1) coordinate points, determine the touch position of the object in contact with the display light array or the sensing position of the suspended sensing object through the data of the n×m touch sensing channels and the data ratio of the adjacent touch sensing channels.

[0011] In some embodiments, the divided n regions are divided into upper and lower scan regions, and the n×m touch sensing channels are divided into upper and lower scan regions.

[0012] In some embodiments, the display lamp array and the touch sensing channels adopt a double-layer structure. The display lamp array and the touch sensing channels are on the same layer, and the traces of the touch sensing channels and the display lamp traces of the display lamp array are on another layer corresponding to the touch sensing channel layer. The touch signal channel traces are connected to the corresponding touch sensing channels in the corresponding areas through vias, and the display lamp traces are connected to the display lamps in the corresponding areas through vias.

[0013] In some embodiments, the lighting mode includes a forward and reverse push mode. According to the forward and reverse push mode, signal transmission ports are configured for multiple scanning areas of the display lamp array, including the following steps: The display lamps in each scanning area form an i×j array, and i + 1 signal transmission ports are sequentially configured in the row direction; the positive or negative poles of the display lamps in each column are all connected to one signal transmission port, and the negative or positive poles thereof are respectively connected to the other i signal transmission ports of the unconnected display lamps in sequence; among them, the positive or negative poles of the display lamps between each column are connected to different signal transmission ports; where i = j or j = i + 1.

[0014] In some embodiments, the touch scan synchronization signal and the touch scan signal have the same frequency, voltage, timing, and phase.

[0015] As a common inventive concept, the present invention also provides a system for realizing full-screen touch on a display lamp array, which is used to realize a method for realizing full-screen touch on a display lamp array as described above, including a main control chip, at least one driving chip connected to the main control chip, a display lamp array, and touch sensing channels located on the same substrate as the display lamp array; The display lamp array and the touch sensing channels are respectively divided into multiple scanning areas. The display lamps in each scanning area are connected to the driving chip, and the touch sensing channels in each scanning area are connected to the main control chip; In the signal scanning stage, the main control chip sequentially obtains the touch signals of the touch sensing channels in each scanning area through the touch sensing channels, starts the corresponding touch functions according to the obtained touch signals, and transmits the timing signals of the scanning areas in the touch signal scanning stage to the driving chip; the driving chip switches the driving signals of the display lamps in the scanning areas in the touch signal scanning stage to touch scan synchronization signals according to the obtained timing signals of the touch signal scanning stage, and lights up the display lamps in other scanning areas that are not in the touch signal scanning stage through the driving signals.

[0016] In some embodiments, the driving chip includes a switch array, a SEG module, a PWM control module, a constant current control module, a random access memory, a CMD register, and a communication interface; the switch array includes a display lamp driving signal output terminal, a touch scan synchronization signal input terminal, and a SEG signal input terminal. The touch scan synchronization signal input terminal is connected to the main control chip, the SEG signal input terminal is connected to the SEG module, and the display lamp driving signal output terminal is connected to the display lamp array; both the PWM control module and the constant current control module are connected to the SEG module, the SEG module is connected to the random access memory and the CMD register, and the random access memory and the CMD register are connected to the communication interface.

[0017] As a common inventive concept, the present invention also provides an electronic cigarette, including a system for realizing full-screen touch on a display lamp array described above, and realizing a method for realizing full-screen touch on a display lamp array described above through this system.

[0018] Implementing one of the above technical solutions of the present invention has the following advantages or beneficial effects: In the present invention, by setting corresponding touch patterns on a substrate having a display lamp array, the touch and gesture sensing functions can be realized in the display area of the entire curved (such as curved into three sides) display lamp array without the need for a touch screen module, which can greatly reduce the development cost.

[0019] In addition, the present invention divides the display lamp array and the touch pattern into multiple scanning regions. When a touch signal is scanned in a certain scanning region, the display lamp driving signal control pin corresponding to this scanning region switches to the touch scan synchronization signal inside the chip. All the display lamp control pins in this scanning region have the same frequency, voltage, timing, and phase as the touch scan signal, so that the display lamps and the corresponding traces will not interfere with the touch sensing channel and increase the influence of the capacitive load. When a certain scanning region is in the touch signal scanning stage, the display lamps corresponding to this scanning region have no driving signal, while the display lamps in the scanning regions that are not in the touch signal scanning stage are lit by the driving signal. In this way, the interference of the on-off flicker of the display lamps on the touch signal can be eliminated from the space of the display screen. Thus, a high-precision touch and gesture function is realized in the display area of the display lamp array. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 based on these drawings. In the drawings: Figure 1It is a flowchart of a method for implementing full - screen touch on a display lamp array according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the merging process of an LED lamp array and a touch - sensing channel according to an embodiment of the present invention; Figure 3 It is a schematic diagram of a coordinate system for judging touch coordinates based on a touch - sensing channel according to an embodiment of the present invention; Figure 4 It is a circuit structure diagram of the upper - half screen lamp group in the scanning partition of an LED lamp array according to an embodiment of the present invention; Figure 5 It is a circuit structure diagram of the lower - half screen lamp group in the scanning partition of an LED lamp array according to an embodiment of the present invention; Figure 6 It is a schematic diagram of the signal - transmission port configuration for dividing a touch - sensing channel into upper and lower scanning areas according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the main control chip structure according to an embodiment of the present invention; Figure 8 It is a schematic diagram of the driving chip structure according to an embodiment of the present invention; Figure 9 It is a working timing diagram of the touch - sensing channel scanning and the LED lamp array lighting according to an embodiment of the present invention; Figure 10 It is a schematic diagram of the system structure for implementing the touch function on a display lamp array according to an embodiment of the present invention; Figure 11 It is a schematic diagram of the internal circuit structure of the driving chip according to an embodiment of the present invention. Detailed implementation manners

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer, 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 used 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. that are consistent with some aspects of the present invention disclosed as detailed 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.

[0022] In the description of the present invention, the term "plurality" means two or more. The terms "connected" and "coupled" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, communicatively connected, directly connected, or indirectly connected through an intermediate medium. They can be the communication between two components or the interaction relationship between two components. 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.

[0023] In order to illustrate the technical solution 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.

[0024] Embodiment 1: As Figure 1 shown, a method for implementing full-screen touch on a display lamp array in this embodiment includes the following steps: S100: Divide the display lamp array into multiple regions, and configure multiple touch sensing channels in each region; S200: According to the lighting mode of the display lamp array and the multiple divided regions, divide the display lamp array and the multiple touch sensing channels into multiple scan regions respectively; An optional implementation manner is that the number and partitioning criteria of the scan regions of the display lamp array and the touch sensing channels are the same; S300: According to the lighting mode of the display lamp array, configure signal transmission ports for the display lamps and touch sensing channels in each scan region respectively; S400: In the signal scanning stage, when a certain scan region is in the touch signal scanning stage, switch the driving signal of the display lamps in this scan region to a touch scanning synchronization signal, and light up the display lamps in other scan regions that are not in the touch signal scanning stage through the driving signal; Among them, the display lamp array and the touch sensing channels are arranged on the same substrate. The substrate includes an FPC board (Flexible Printed Circuit, flexible printed circuit board) or a PCB board (Printed Circuit Board, printed circuit board).

[0025] It can be understood that designing the display lamp array (such as an LED lamp array) and the touch sensing channels on the same FPC or PCB board needs to solve two problems: 1) When the LED lamp lights up and flashes, it will cause great interference to the touch sensing channels at the corresponding positions; 2) The touch pattern formed by the touch sensing channels will be incomplete due to the arrangement of the lamps, and the data accuracy and sensitivity of the touch sensing coordinates will be affected.

[0026] The touch sensing channel can achieve touch or proximity sensing, and is a structure that can generate capacitance or self-capacitance when powered on or when a human body comes into contact with or approaches. For example, the metal filament, metal base, lamp housing of a display lamp, and the wiring connecting the display lamp constitute a sensor that can sense changes in the external self-capacitance. By setting a touch sensing channel in the above structure, a specific pattern shape is formed, and the change in this capacitance is detected by the self-capacitance detection unit inside the chip. When the change exceeds a pre-set threshold, it can be determined that a touch or proximity action has occurred. Furthermore, the function of touch or hovering touch can be directly implemented on the display lamp array. Of course, the touch sensing channel can also be copper foil, etc.

[0027] Based on this, the present invention sets corresponding touch patterns on a substrate with a display lamp array, and thus, without the need for a touch screen module, the touch and gesture sensing functions can be realized in the display area of the entire display lamp array (specifically, such as the e-cigarette display lamp array bent into three sides), which can greatly reduce the development cost. In addition, the display lamp array and the touch pattern are divided into multiple scanning areas. When a certain scanning area performs a touch signal scan, the display lamp drive signal control pin corresponding to this scanning area switches to a touch scan synchronization signal inside the chip. All the display lamp control pins in this scanning area have the same frequency, voltage, timing, and phase as the touch scan signal, so that the display lamp and the corresponding wiring will not interfere with the touch sensing channel and increase the influence of the capacitance load. Further, when a certain scanning area is in the touch signal scanning stage, the display lamp corresponding to this scanning area has no drive signal, while the display lamps in the scanning areas that are not in the touch signal scanning stage are lit by the drive signal. In this way, the interference of the on-off flashing of the display lamp on the touch signal can be eliminated from the space of the display screen. Thus, high-precision touch and gesture functions are realized in the display area of the display lamp array.

[0028] Based on the above embodiments, the pattern shape of each touch sensing channel is in the shape of a triangular sawtooth, and the tip of each sawtooth of the triangular sawtooth is arranged between two rows of display lamps or between two columns of display lamps in the corresponding area, so as to ensure the integrity and consistency of the touch sensing channel pattern.

[0029] Based on the above embodiments, the display lamp array is divided into n regions in the row direction, and m touch sensing channels are arranged in the column direction in each region. Among them, both n and m are positive integers greater than 2. The n×m touch sensing channel regions and the regions between each touch sensing channel and its adjacent touch sensing channels form 2m - 1 coordinate segments in the row direction and 2n - 1 coordinate segments in the column direction. According to the (2m - 1)×(2n - 1) coordinate points, the touch position of the contact object or the sensing position of the hovering sensing object on the display lamp array is determined through the data of the n×m touch sensing channels and the data ratio of the adjacent touch sensing channels.

[0030] As shown Figure 2 In a specific embodiment, take the realization of the full-screen touch function on the 144 LED arrays of an electronic cigarette as an example. In the display area, the LED lights are evenly distributed to form the display dot matrix pixels. Horizontally, there are 12 LED lights in a row, and vertically, there are 12 rows, for a total of 12×12 = 144 LED lights. This 144-LED dot matrix is the display pixel in the display area. In the design of the touch sensing channels, the entire display area is divided into 4 regions vertically, and each region has 3 touch signal channels horizontally (such as S1, S2, S3 in Figure 2 ), and a total of 12 touch signal channels are designed. The three touch signal channels horizontally adopt a triangular sawtooth design, and the sharpest part of the sawtooth is designed in the middle of the upper and lower rows of LED lights. It should be noted that the LED array is divided into 4 regions in the row direction, and each region has 3 touch signal channels horizontally. The three channels horizontally adopt a triangular sawtooth design, and the sharpest part of the sawtooth is designed in the middle of the upper and lower rows of LED lights, which can ensure the integrity and consistency of the touch sensing channels.

[0031] It can be understood that if the top of the sawtooth is not placed in the middle of the upper and lower rows of LED lights, it may be interrupted by the position of the LED lights, resulting in an incomplete pattern. If the interruption positions of each channel are different, it will also cause differences in the sensing area of each channel, that is, poor consistency. Further, since the display lights and the touch sensing channels are designed on the same board, the display lights will cause a reduction in the area of the touch sensing channels and the touch sensing channels are incomplete. Adjusted to a design of three touch sensing channels horizontally, there are two pairs of triangular patterns horizontally, and the area detected by each pair of patterns is half of the original design of two pairs of touch sensing channels, thereby greatly improving the accuracy of touch detection.

[0032] It should be noted that the 12×12 display array can be numbered in the order from left to right and from top to bottom. For example, in the first row: D1, D2,..., D12, in the second row: D13, D14,..., D24,..., in the 12th row: D133, D134,..., D144. The subsequent division of the display array into regions and the division of the display lights in the divided regions into scanning areas can all be partitioned according to the LED light numbers here.

[0033] As shown Figure 3As shown, further, the serrated design can determine the horizontal coordinates based on the data features of three touch sensing channels. The horizontal coordinates are determined by three (m = 3) touch sensing channels. Through pattern design, the three touch signal channels can be divided into five segments of coordinates. When a finger touches the middle position between S1 and S2, the data of S1 and S2 are close. In the vertical direction, seven segments of position coordinates are formed by four (n = 4) touch sensing channels. When a finger touches the middle position between S1 and S4, the data of S1 and S4 are close. Thus, the position of the finger touch can be determined based on the data and ratio of the touch signal channels.

[0034] It can be understood that the serrated design can divide the data features of three touch sensing channels into more than five levels: S1, S1 / S2, S2, S2 / S3, S3. Similarly, the vertical touch sensing channels can be configured into seven levels by using software algorithms for four channels. In this way, the touch area can become 7×5 = 35, with 144 lights and 35 touch areas. Each area has 144 / 35 = 4.1, that is, each area has approximately 4 lights, and the area of 4 lights is about 4mm×6mm. Generally, the area of a normal finger is within 40 square millimeters. So when the finger slides on the display area, the lights in the corresponding area light up, and thus the effect of touch and gesture can be achieved.

[0035] Based on the above embodiments, the display light array and the touch sensing channels adopt a double - layer structure. The display light array and the touch sensing channels are on the same layer, and the traces of the touch sensing channels and the display lights of the display light array are on another layer of the touch sensing channel layer. The traces of the touch signal channels are connected to the corresponding touch patterns (touch sensing channels) in the area through vias, and the display light traces are connected to the corresponding display lights in the area through vias. It can be understood that using a double - layer design can reduce costs compared with designs with more than two layers.

[0036] Based on the above embodiments, the lighting mode includes the forward - backward push mode. According to the forward - backward push mode, signal transmission ports are configured for multiple scanning areas of the display light array, including the following steps: The display lights in each scanning area form an i×j array. In the row direction, i + 1 signal transmission ports are configured in sequence; for each column, the positive or negative poles of the display lights are each connected to a signal transmission port, and their negative or positive poles are respectively connected to the i signal transmission ports of other unconnected display lights in sequence; among them, the positive or negative poles of the display lights between each column are connected to different signal transmission ports; where i = j or j = i + 1.

[0037] As Figures 4 - 8As shown in the figure, at the software control level, the display light arrays in the four divided regions are divided into upper and lower scanning regions. The LED light array adopts a forward and reverse push mode. There are 72 LED lights in the upper half screen (LED1 light group, LED light numbers D1 - D72) and 72 LED lights in the lower half screen (LED2 light group, LED light numbers D73 - D144). In the LED1 light group, an 8×9 (i = 8, j = 9) array is formed. SIGNAL TRANSMISSION PORTS OUT1 to OUT9 are sequentially configured in the row direction (SIGNAL TRANSMISSION PORT OUT1 to SIGNAL TRANSMISSION PORT OUT8 are respectively connected to pins 24 to 17 of driving chip U2, and SIGNAL TRANSMISSION PORT OUT9 is connected to pin 5 of driving chip U2); the positive or negative pole of each display light in each column is connected to a SIGNAL TRANSMISSION PORT, and its negative or positive pole is sequentially connected to the other 8 SIGNAL TRANSMISSION PORTS to which the display lights are not connected; among them, the positive or negative poles of the display lights between each column are connected to different SIGNAL TRANSMISSION PORTS. In the LED2 light group, an 8×9 array is formed. SIGNAL TRANSMISSION PORTS OUT10 to OUT18 are sequentially configured in the row direction (SIGNAL TRANSMISSION PORT OUT10 to SIGNAL TRANSMISSION PORT OUT16 are respectively connected to pins 6 to 12 of driving chip U2, SIGNAL TRANSMISSION PORT OUT17 is connected to pin 18 of driving chip U2, and SIGNAL TRANSMISSION PORT OUT18 is connected to pin 17 of driving chip U2). The positive or negative pole of each display light in each column is connected to a SIGNAL TRANSMISSION PORT, and its negative or positive pole is sequentially connected to the other 8 SIGNAL TRANSMISSION PORTS to which the display lights are not connected. Among them, the positive or negative poles of the display lights between each column are connected to different SIGNAL TRANSMISSION PORTS.

[0038] Furthermore, the 12 touch sensing channels are divided into upper and lower scanning regions, namely TP Touch Group 1 and TP Touch Group 2, with 6 touch sensing channels in each group. Touch signal channels S1 - S6 (Touch signal channel S1 is connected to pin 2 of main control chip U1, touch signal channel S2 is connected to pin 1 of main control chip U1, and touch signal channels S3 - S6 are respectively connected to pins 36 to 33 of main control chip U1) are in the upper half region, which is TP1 group, and all LEDs in this region belong to the LED1 light group; the lower half region where touch sensing channels S7 - S12 (touch signal channels S7 - S12 are respectively connected to pins 32 - 27 of main control chip U1) are located is TP2 group, and all LEDs in this region belong to the LED2 light group.

[0039] It should be noted that the 18th pin of main control chip U1 outputs a touch scan synchronization signal TP - SYNC, and the 18th pin of main control chip U1 is connected to the 16th pin of driving chip U2.

[0040] As Figure 9As shown, it is a working timing diagram (scanning stage) for touch-sensing channel scanning and LED array lighting. Designed with an LED refresh rate of 100Hz, that is, lighting of the LED1 lamp group and the LED2 lamp group is completed within 10ms. And the 10ms is divided into two 5ms intervals. The lighting of the LED1 lamp group works in the first 5ms, and the lighting of the LED2 lamp group works in the latter 5ms. When the upper-half LED1 lamp group is lit, the TP touch group 1 at the corresponding position does not work, while the TP touch group 2 in the lower half is turned on for detection. The IO ports of the LED lamps at the positions where the TP touch group 2 is located output the same driving signals as the scanning signals of the TP touch group 2 in terms of frequency, voltage, and timing, so as to ensure that the scanning of the TP touch group 2 is not interfered by the LED lighting scanning and the load impedance. Similarly, when the lower-half LED2 lamp group is lit, the TP touch group 2 at the corresponding position does not work, while the TP touch group 1 in the upper half is turned on for detection. The IO ports of the LED lamps at the positions where the TP touch group 1 is located output the same driving signals as the scanning signals of the TP touch group 1 in terms of frequency, voltage, and timing, so as to ensure that the scanning of the TP touch group 1 is not interfered by the LED lighting scanning and the load impedance.

[0041] Embodiment 2: As Figures 10 - 11 shown, as the same inventive concept, this embodiment provides a system for implementing a touch function on a display lamp array, which is used to implement a method for full-screen touch on a display lamp array described in Embodiment 1 above. It includes a main control chip, at least one driving chip connected to the main control chip, a display lamp array, and a touch-sensing channel located on the same substrate as the display lamp array. Among them, the display lamp array and the touch-sensing channel are respectively divided into multiple scanning areas. The display lamps in each scanning area are connected to the driving chip, and the touch-sensing channels in each scanning area are connected to the main control chip. Specifically, the display lamp array is divided into n areas in the row direction, and m touch-sensing channels are arranged in the column direction in each area. The divided n areas are divided into upper and lower two scanning areas (such as the upper half and the lower half of the display lamp array in the figure), and the n×m touch-sensing channels are divided into upper and lower two scanning areas (such as the upper half and the lower half of the touch-sensing channel in the figure).

[0042] Furthermore, in the signal scanning stage, the main control chip sequentially obtains the touch signals of the touch-sensing channels in each scanning area through the touch-sensing channels, starts the corresponding touch function according to the obtained touch signals, and transmits the timing signals of the scanning areas in the touch signal scanning stage to the driving chip. The driving chip switches the driving signals of the display lamps in the scanning area in the touch signal scanning stage to touch scanning synchronization signals according to the obtained timing signals of the touch signal scanning stage, and lights the display lamps in other scanning areas that are not in the touch signal scanning stage through the driving signals.

[0043] Based on the above embodiments, the driving chip includes a switch array, a SEG module, a PWM control module, a constant current control module, a random access memory (RAM), a CMD register, and a communication interface. Among them, the switch array includes a display lamp driving signal output terminal, a touch scan synchronization signal input terminal, and a SEG signal input terminal. The touch scan synchronization signal input terminal is connected to the main control chip, the SEG signal input terminal is connected to the SEG module, and the display lamp driving signal output terminal is connected to the display lamp array. The PWM control module and the constant current control module are both connected to the SEG module. The SEG module is connected to the random access memory and the CMD register. The random access memory and the CMD register are connected to the communication interface.

[0044] As a specific embodiment, Figure 7 It is a schematic diagram of the MCU (main control chip) structure for realizing the full-screen touch function on a 144-LED lamp array. The GPIO of the selected MCU has touch functions and can control the LED driving chip (driving chip) through SPI. When the MCU performs touch detection scanning, it outputs a touch scan synchronization signal TP_SYNC to the LED driving chip. The LED driving chip controls the LED or outputs a touch detection synchronization signal according to the timing provided by the MCU through SPI. The method for realizing the touch function on the display lamp array in this embodiment is the same as that in Embodiment 1 and will not be elaborated here.

[0045] Furthermore, Figure 11 It is the internal circuit diagram of the driving chip. Compared with the traditional driving chip, a switch array module is added. Each switch of the switch array can be controlled by the main control chip through the communication interface. The output SEG0~SEGn can control the flashing on and off of the LED lamp and can also be switched to the touch scan synchronization signal TP_SYNC as needed. The driving chip adds a touch scan synchronization signal input interface and uses the switch array to complete the switching of the LED lamp signal and the touch scan synchronization signal at the output pin of the driving chip.

[0046] It should be noted that the driving chip adopts POR (Power On Reset) and LVR (Low Voltage Reset) reset mechanisms for chip startup and voltage detection.

[0047] Embodiment 3: As the same inventive concept, this embodiment provides an electronic cigarette, including a system for realizing the touch function on a display lamp array described in Embodiment 2, and realizing the method for realizing full-screen touch on the display lamp array described in Embodiment 1 through the system for realizing the touch function on the display lamp array. For specific reference, see Embodiment 1 and Embodiment 2, and details will not be elaborated here.

[0048] It should be noted that the display light array (display screen) of the electronic cigarette in this embodiment can be bent into three sides (for example, bent into two 90° angles to form a three-sided display during use), and the display area of the entire display light array can implement touch and gesture sensing functions.

[0049] Furthermore, the main control chip is the main control chip of the electronic cigarette. When the number of LED lights in the electronic cigarette exceeds 200, generally an external driving chip (LED light driving chip) is required. The LED light driving chip has a constant current control function, which can control the on / off and different levels of brightness of the lights. Considering the cost, the light array of the electronic cigarette generally adopts a forward and reverse push lighting mode.

[0050] It should be understood that although the steps in the flowcharts involved in the above embodiments are shown in sequence according to the arrows, these steps do not necessarily need to be executed in the order indicated by the arrows. Unless otherwise clearly stated in this article, there is no strict order restriction for the execution of these steps, 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 time, but can be executed at different times. The execution order of these steps or stages does not necessarily need to be sequential, but can be executed alternately or in turn with at least a part of other steps or steps in other steps.

[0051] The above are only the preferred embodiments of the present invention. Those skilled in the art know that various changes or equivalent substitutions 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 implementing full-screen touch on a display light array, characterized in that: The steps include: Divide the display light array into multiple areas, and configure multiple touch sensing channels in each area; According to the lighting mode of the display light array and the divided multiple areas, the display light array and the multiple touch sensing channels are respectively divided into multiple scanning areas; According to the lighting mode of the display light array, a signal transmission port is configured for each display light and touch sensing channel in each scanning area; In the signal scanning stage, when a certain scanning area is in the touch signal scanning stage, the driving signal of the display light in the scanning area is switched to the touch scanning synchronization signal, and the display lights in other scanning areas that are not in the touch signal scanning stage are lit by the driving signal; The display light array and the touch sensing channel are arranged on the same substrate.

2. A method for implementing full-screen touch on a display light array according to claim 1, characterized in that: The pattern shape of each touch sensing channel is a triangular sawtooth shape, and each sawtooth tip of the triangular sawtooth is arranged between two rows of display lights or between two columns of display lights in the corresponding area.

3. The method for implementing full-screen touch on a display light array according to claim 1, characterized in that: The display light array is divided into n areas in the row direction, and m touch sensing channels are arranged in each area in the column direction; the n×m touch sensing channel areas and the area between each touch sensing channel and its adjacent touch sensing channel form 2m-1 coordinate segments in the row direction and 2n-1 coordinate segments in the column direction; According to (2m-1)×(2n-1) coordinate points, the touch position of the contact object on the display light array or the sensing position of the suspended sensing object is determined through the data of n×m touch sensing channels and the data ratio of adjacent touch sensing channels.

4. A method for implementing full-screen touch on a display light array according to claim 3, characterized in that: The n divided areas are divided into two upper and lower scanning areas, and the n×m touch sensing channels are divided into two upper and lower scanning areas.

5. The method for implementing full-screen touch on a display light array according to claim 1, characterized in that: The display light array and the touch sensing channel adopt a double-layer structure, the display light array and the touch sensing channel are in the same layer, and the traces of the touch sensing channel and the display light traces of the display light array are in another layer corresponding to the touch sensing channel layer; The touch signal channel wiring is connected to the touch sensing channel of the corresponding area through the through hole, and the display light wiring is connected to the display light of the corresponding area through the through hole.

6. The method for implementing full-screen touch on a display light array according to claim 1, characterized in that: The lighting mode includes a forward and reverse push mode. According to the forward and reverse push mode, a signal transmission port is configured for multiple scanning areas of the display light array, including the following steps: The display lights in each scanning area form an i×j array, and i+1 signal transmission ports are configured in sequence from row to row; the positive or negative pole of the display lights in each column is connected to a signal transmission port, and its negative or positive pole is connected in sequence to i signal transmission ports that are not connected to the other display lights; among which, the positive or negative pole of the display lights between each column is connected to different signal transmission ports; among which, i=j or j=i+1.

7. A method for implementing full-screen touch on a display light array according to any one of claims 1 to 6, characterized in that: The touch scan synchronization signal has the same frequency, voltage, timing, and phase as the touch scan signal.

8. A system for implementing full-screen touch on a display light array, characterized in that: A method for realizing full-screen touch on a display light array as described in any one of claims 1 to 7, comprising a main control chip, at least one driver chip connected to the main control chip, a display light array, and a touch sensing channel located on the same substrate as the display light array; The display light array and the touch sensing channel are respectively divided into a plurality of scanning areas, the display light of each scanning area is connected to the driving chip, and the touch sensing channel of each scanning area is connected to the main control chip; In the signal scanning stage, the main control chip sequentially obtains the touch signal of the touch sensing channel of each scanning area through the touch sensing channel, starts the corresponding touch function according to the acquired touch signal, and transmits the timing signal of each scanning area in the touch signal scanning stage to the driving chip; The driver chip switches the driving signal of the display light in the scanning area in the touch signal scanning stage to the touch scanning synchronization signal according to the timing signal of the touch signal scanning stage, and lights up the display lights in other scanning areas that are not in the touch signal scanning stage through the driving signal.

9. A system for implementing full-screen touch on a display light array according to claim 8, characterized in that: The driver chip includes a switch array, a SEG module, a PWM control module, a constant current control module, a random access memory, a CMD register, and a communication interface; The switch array includes a display light drive signal output terminal, a touch scan synchronization signal input terminal, and a SEG signal input terminal. The touch scan synchronization signal input terminal is connected to the main control chip, the SEG signal input terminal is connected to the SEG module, and the display light drive signal output terminal is connected to the display light array. The PWM control module and the constant current control module are both connected to the SEG module, the SEG module is connected to the random access memory and the CMD register, and the random access memory and the CMD register are connected to the communication interface.

10. An electronic cigarette, characterized in that: The invention comprises a system for realizing full-screen touch on a display light array as described in claims 8 to 9, and a method for realizing full-screen touch on a display light array as described in any one of claims 1 to 7 is implemented by the system.

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