CN114860104A - LED display touch sensing device, control method thereof and electronic equipment - Google Patents

LED display touch sensing device, control method thereof and electronic equipment Download PDF

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Publication number
CN114860104A
CN114860104A CN202210446251.7A CN202210446251A CN114860104A CN 114860104 A CN114860104 A CN 114860104A CN 202210446251 A CN202210446251 A CN 202210446251A CN 114860104 A CN114860104 A CN 114860104A
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Prior art keywords
touch sensing
chip
light
emitting module
light emitting
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Granted
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CN202210446251.7A
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CN114860104B (en
Inventor
胡颖哲
徐超
李正平
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Zhuhai Spacetouch Ltd
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Zhuhai Spacetouch Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention provides an LED display touch sensing device, a control method thereof and electronic equipment, wherein the LED display touch sensing device comprises a central controller, the central controller is electrically connected with a plurality of display units, and the central controller and the display units perform data interaction; each display unit is provided with a control chip and at least one light-emitting module, and the control chip controls the light-emitting module to work; the control chip is provided with a touch sensing chip and a driving chip, the touch sensing chip and the driving chip send signals or receive signals to the light-emitting module in a time division multiplexing mode, and the control chip controls the change of the light-emitting state of the light-emitting module through the driving chip according to the touch sensing signals acquired by the touch sensing chip. The method is a method for realizing the touch function of the LED display screen by applying the LED display touch sensing device. The invention can reduce the production cost of the LED display touch sensing device.

Description

LED display touch sensing device, control method thereof and electronic equipment
Technical Field
The invention relates to the field of intelligent control, in particular to an LED display touch sensing device and a control method of the device, and also relates to electronic equipment applying the LED display touch sensing device.
Background
Most of the existing electronic devices have a display function, and an LED display screen is usually provided for displaying graphic and text information. An LED display screen of an electronic device is usually provided with an LED display array, where the LED display array has a plurality of display units, each display unit is formed by packaging a dedicated display chip and an LED, and for example, 1 ten thousand display units are required for a 100 × 100 pixel LED array.
In order to control the display of the LED display screen, the LED display screen is also provided with a central controller, each display unit is connected with the central controller and receives signals sent by the central controller, and the working state of each display unit is controlled through the signals sent by the central controller, for example, the light emitting brightness or the color of each display unit is controlled, so that the content displayed by the LED display screen is controlled.
Most of existing intelligent electronic devices are provided with a touch function, a touch area is usually arranged on a control panel of the electronic device, a touch pad is arranged in the touch area, when a finger of a user touches the touch pad, and the touch pad senses a finger movement or approach signal of the user, the sensed signal is transmitted to a control chip, and corresponding operation is realized according to the signal of the user, for example, the start, pause and the like of the electronic device are controlled.
However, the existing LED display array does not have a touch function, but as the performance requirement of the electronic device by the user becomes higher, the touch function is often desired to be added on the LED display screen. If a touch function is added to a conventional LED display array without a touch function, separate touch sensors, such as ITO, copper wires, etc., are often added, and these touch sensors need to be connected to a central controller, and the central controller determines whether a touch event occurs by acquiring a change in capacitance of the touch sensors, that is, the touch sensing function is realized through capacitance sensing. However, since the circuit arrangement of the LED display array is very complicated, adding the touch circuit will increase the complexity of the whole LED display system, which in turn leads to an increase in the production cost of the LED display screen.
Disclosure of Invention
The first purpose of the present invention is to provide an LED display touch sensing device capable of implementing a touch function at low cost.
The second purpose of the present invention is to provide a control method of the LED display touch sensing device.
The third purpose of the invention is to provide an electronic device with the LED display touch sensing device.
In order to achieve the first object of the present invention, the LED display touch sensing device provided by the present invention comprises a central controller, wherein the central controller is electrically connected to a plurality of display units, and the central controller performs data interaction with the display units; each display unit is provided with a control chip and at least one light-emitting module, and the control chip controls the light-emitting module to work; the control chip is provided with a touch sensing chip and a driving chip, the touch sensing chip and the driving chip send signals or receive signals to the light-emitting module in a time division multiplexing mode, and the control chip controls the change of the light-emitting state of the light-emitting module through the driving chip according to the touch sensing signals acquired by the touch sensing chip.
According to the scheme, the touch sensing chip and the driving chip are arranged in the control chip of each display unit and work in a time division multiplexing mode, so that each display unit can receive touch sensing signals and the driving unit drives the light emitting module of the display unit to work. Therefore, the touch sensing signal is not required to be transmitted to the central controller, the central controller is not required to independently transmit a control signal aiming at the touch sensing signal to a certain display unit, and the light-emitting state change of the light-emitting module is completely realized in the display unit.
Therefore, an extra touch sensor does not need to be arranged on the LED display screen, connecting wires between each display unit and the central controller are very few, wiring complexity of the LED display screen can be reduced, the area of a circuit board is reduced, and production cost of the LED display screen is reduced.
Preferably, the number of the light emitting modules in each display unit is two or more, and the light emitting colors of the plurality of light emitting modules are two or more.
Therefore, the light-emitting module can have multiple light-emitting colors, and after the display unit receives the touch sensing signal, the display module can control the light-emitting modules with different colors to emit light, so that the color of the light-emitting module is changed.
Further, the plurality of display units are arranged in an array. Therefore, the display effect of the LED display screen can be better.
In a further scheme, the light emitting module is an LED chip; the touch sensing chip and the driving chip are both connected to pins of the LED chip.
Therefore, the pins of the LED chip are simultaneously connected to the touch sensing chip and the driving chip, and the time division multiplexing control of the touch sensing chip and the driving chip on the LED chip is realized.
In order to achieve the second objective, the control method of the LED display touch sensing device provided by the present invention includes that the central controller sends control signals to the plurality of display units; each display unit is provided with a control chip and at least one light-emitting module, and the control chip is provided with a touch sensing chip and a driving chip; the touch sensing chip receives a touch sensing signal formed on the light emitting module, and the control chip controls the change of the light emitting state of the light emitting module through the driving chip according to the touch sensing signal; the touch sensing chip and the driving chip send signals or receive signals to the light emitting module in a time division multiplexing mode.
According to the scheme, each display unit is provided with the touch sensing chip and the driving chip, the display unit can control the change of the light emitting state of the light emitting module through the driving chip according to the touch sensing signal acquired by the touch sensing chip, and the central controller is not required to process the light emitting state of the light emitting module.
The touch sensing chip and the driving chip are communicated with the light-emitting module in a time division multiplexing mode, namely, the capacitance of the light-emitting module is used as a signal source of touch sensing, so that an additional touch sensor is not needed, and the touch function of the LED display device can be realized at low cost.
Preferably, the controlling the control chip controls the change of the light emitting state of the light emitting module through the driving chip according to the touch sensing signal includes: and after receiving the touch sensing signal, changing the color and/or the light emitting brightness of the light emitting module.
Therefore, the color and/or the luminous brightness of the light-emitting module change after the touch of a user, so that the change of the luminous state of the light-emitting module is realized, and the change of the luminous state of the light-emitting module can be diversified.
Further, the changing the color and/or the light emitting brightness of the light emitting module comprises: and changing the color and/or the light-emitting brightness of the light-emitting module within a preset time after the touch sensing signal is received.
Therefore, the change of the light emitting state of the light emitting module is not long time, but changes within a certain time, for example, a highlight change is sent within 5 seconds, and after the preset time is up, the initial display state is recovered, so that the personalized requirements of users can be met.
The further proposal is that the preset time is a preset value sent to the display unit by the central controller; or the preset time is a preset value recorded by the display unit.
Therefore, the preset time can be set according to the requirements of the user, and the individual requirements of the user are met.
In a further scheme, in one period, the time length of the touch sensing chip receiving the signal of the light emitting module is equal to the time length of the driving chip sending the signal to the light emitting module.
Therefore, the touch sensing chip can sense the capacitance change formed on the LED chip for a long time, and the detection sensitivity is improved.
In order to achieve the third objective, the electronic device provided by the invention comprises a display device and the LED display touch sensing device.
Drawings
FIG. 1 is a schematic block diagram of an embodiment of an LED display touch sensing device of the present invention.
FIG. 2 is a schematic block diagram of a display unit in an embodiment of an LED display touch sensing device of the present invention.
FIG. 3 is a flowchart illustrating an embodiment of a method for controlling an LED display touch sensing device according to the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
The LED display touch sensing device is applied to various intelligent electronic devices, preferably, the intelligent electronic devices have a touch function, for example, one LED display screen is arranged, a plurality of display units are arranged on the LED display screen, and the LED display touch sensing device can control the working state of each display unit.
LED display touch sensing device embodiments:
referring to fig. 1, the LED display touch sensing device of the present embodiment has one central controller 10 and is provided with a plurality of display units arranged in an array, fig. 1 shows 16 display units arranged in four rows and four columns, the first row of display units includes display units 21, 22, 23, 24, the second row of display units includes display units 25, 26, 27, 28, the third row of display units includes display units 29, 30, 31, 32, and the fourth row of display units includes display units 33, 34, 35, 36.
The central controller 10 is electrically connected to each display unit, and the central controller 10 may transmit a control signal to each display unit, for example, a signal of a light emitting mode to each display unit, which operates under the control signal transmitted by the central controller 10.
Referring to fig. 2, each display unit has one control chip 40 and three light emitting modules 41, 42, 43, however, in other embodiments, the number of light emitting modules provided in the display unit may be one or two, or even four or more. In this embodiment, each light emitting module has a different color, for example, the light emitted by the light emitting module 41 is red, the light emitted by the light emitting module 42 is green, and the light emitted by the light emitting module 43 is yellow.
In this embodiment, the light emitting modules 41, 42, and 43 are all LED chips, and preferably, LED chips emitting different colors are respectively used. Each LED chip is provided with a metal piece, so that the LED chip can be used as an electrode of the induction capacitor.
The control chip 40 is provided with a touch sensing chip 45 and a driving chip 46, and the touch sensing chip 45 is used for detecting the change of the capacitance on the LED chip, so as to form a touch sensing signal. The control chip 40 controls the light emitting state of the LED chip, for example, controls different light emitting modules to emit light, or controls the brightness of each light emitting module to change, according to the touch sensing signal by the driving chip 46.
In order to control the plurality of light emitting modules by the touch sensing chip 45 and the driving chip 46, the touch sensing chip 45 and the driving chip 46 operate in a time division multiplexing manner. The touch sensing chip 45 and the driving chip 46 periodically sense the capacitance on the LED chip or drive the LED chip to emit light at intervals, for example, the LED chip is controlled by the method disclosed in chinese patent application CN 110187784A. Specifically, one cycle is divided into two equal time segments, for example, a first time segment t1 and a second time segment t2, and the time lengths of the first time segment t1 and the second time segment t2 are equal. In the first time period t1, the touch sensing chip 45 senses the capacitance between the LED chip and the touch point, and in the second time period t2, the driving chip 46 supplies power to the LED chip, thereby driving the LED chip to emit light. And repeating the steps in a continuous cycle, wherein in each period, half of the time is used for detecting the change of the capacitance to form a touch sensing signal, and the other half of the time is used for driving the LED chip to emit light.
For example, each LED chip has two pins, namely a positive pin and a negative pin, and the positive pin and the negative pin of the LED chip are connected to the touch sensing chip 45 and the driving chip 46. In this way, the touch sensing chip 45 can detect a change in capacitance formed on the LED chip by sensing the pins of the LED chip, and the driving chip 46 controls a change in the light emitting state of the LED chip by applying a voltage to the pins of the LED chip.
The embodiment of the control method of the LED display touch sensing device comprises the following steps:
the control method of the LED display touch sensing device is described below with reference to fig. 3. First, step S1 is executed, and the central controller sends control signals to the plurality of display units, such as controlling the light emitting colors or light emitting brightness of the display units, and even controlling the on/off of each display unit. And after the control chip of each display unit receives the control signal, the control chip controls the light emitting of each light emitting module according to the received control signal.
Preferably, the control signal sent by the central controller further includes change information of the light emitting mode after each display unit receives the touch sensing signal, for example, after the display unit receives the touch sensing signal, a change of the light emitting brightness, a change of the light emitting color, a duration of the change of the light emitting state, and the like. Of course, the control chip of each display unit may also be provided with default data, that is, after the display unit receives the touch sensing signal, the change information of the light emitting mode may be the default data preset in the control chip.
Then, each display unit controls each light emitting module to emit light under a signal transmitted from the central controller. For example, the central controller controls one display unit to emit green light, sets the brightness of the emitted light, the duration of the current light-emitting state and the like, and the display unit controls the corresponding light-emitting module to emit light according to the received signals. For example, a driving voltage is applied to the LED chip of the corresponding color by the driving chip, so that the LED chip of the corresponding color emits light.
After the display unit is powered on, step S2 is executed to determine whether a touch sensing signal is received, for example, a touch sensing chip in the control chip continuously receives the capacitance variation formed on each LED chip, and thus determine whether a touch event occurs. For example, when the capacitance variation on one LED chip is greater than a preset variation threshold, it may be determined that a touch event occurs, so as to form a touch sensing signal.
In this embodiment, the touch sensing chip does not acquire the touch sensing signal in the whole time period, and the touch sensing chip and the driving chip communicate with the LED chip in a time division multiplexing manner, specifically, in one cycle, in a half of the time, the touch sensing chip receives the touch sensing signal of the LED chip, and in the other half of the time, the driving chip sends the driving signal to the LED chip. Preferably, the time of one cycle is very short, for example, only 10 milliseconds, so that the time for receiving the touch sensing signal by the touch sensing chip is very short, that is, the time period for not sending the driving signal by the driving chip is very short, even if the LED chip emits light during this time period, human eyes cannot easily detect the light, and cannot feel the stroboscopic condition.
And if the touch sensing signal is not received, continuing to wait, and continuing to control the work of each light-emitting module in the display unit according to the control signal sent by the central controller. If the touch sensing signal is received, step S3 is executed, and the driving chip controls the light emitting module to emit light in the set mode. For example, the preset mode may be that the light emitting color of the display unit is changed, and then the driving module drives the LED chip of the corresponding color to emit light; the preset mode may be that the light emitting brightness of the display unit is changed, and then the driving module adjusts the output driving voltage or driving current, so as to change the light emitting brightness of the light emitting module. Of course, the light emitting brightness and the light emitting color of the display unit may be adjusted at the same time.
Further, the adjustment of the light emission pattern is performed only within a preset time, that is, the change of the light emission color, the change of the light emission luminance, may be performed only within a short time, for example, only the change of the light emission color for 5 seconds. Therefore, it is necessary to perform the step S4 to determine whether the preset time is reached, and if the preset time is not reached, to continue to emit light in the set mode, i.e., to maintain the set light emission mode of the step S3. If the judgment in the step S4 is yes, that is, the preset time is reached, then step S5 is performed, and the light emitting mode of the display unit is restored to the initial state, that is, to the state before the step S2.
Of course, in an alternative embodiment, after the display unit receives the touch sensing signal, the light emitting mode of the display unit is changed for a long time until the central controller sends a new control signal. In this case, step S4 and step S5 are not executed, and it is determined whether a new control signal transmitted from the central controller is received, and the light emission mode is changed after the new control signal is received.
A specific application scenario is that when a finger of a user slides on the LED display screen, and a display unit corresponding to an area through which the finger passes receives a touch sensing signal, the light emitting color and/or the light emitting luminance of the display units change, thereby forming a highlight display effect. And, the effect of the highlight display is displayed only for a preset time, and the initial display state is restored after the preset time is reached.
Therefore, by applying the scheme of the embodiment, the touch function of the LED display device is realized under the condition that no additional touch pad is added, and no additional control line is required to be arranged to connect the touch pad and the central controller, so that the volume and the wiring complexity of the LED display device are reduced, and the production cost of the electronic device is reduced.
Electronic equipment embodiment:
the electronic device of the embodiment is an electronic device with an LED display screen, such as a smart phone, a tablet computer, and the like.
Finally, it should be emphasized that the present invention is not limited to the above-mentioned embodiments, such as the arrangement position of a plurality of display units in the LED display touch sensing device is changed, or the number and kinds of the light emitting modules arranged in each display unit are changed, and these changes should also be included in the protection scope of the claims of the present invention.

Claims (10)

  1. An LED display touch-sensitive device, comprising:
    the central controller is electrically connected with the display units and performs data interaction with the display units;
    the method is characterized in that:
    each display unit is provided with a control chip and at least one light-emitting module, and the control chip controls the light-emitting module to work;
    the control chip is provided with a touch sensing chip and a driving chip, the touch sensing chip and the driving chip send signals or receive signals to the light-emitting module in a time division multiplexing mode, and the control chip controls the change of the light-emitting state of the light-emitting module through the driving chip according to the touch sensing signals acquired by the touch sensing chip.
  2. 2. The LED display touch-sensitive apparatus of claim 1, wherein:
    the number of the light-emitting modules in each display unit is more than two, and the light-emitting colors of the light-emitting modules are more than two.
  3. 3. The LED display touch-sensitive apparatus of claim 1 or 2, wherein:
    a plurality of the display units are arranged in an array.
  4. 4. The LED display touch-sensitive apparatus of claim 1 or 2, wherein:
    the light emitting module is an LED chip;
    the touch sensing chip and the driving chip are both connected to pins of the LED chip.
  5. The control method of the LED display touch sensing device is characterized by comprising the following steps:
    the central controller sends control signals to the plurality of display units;
    each display unit is provided with a control chip and at least one light-emitting module, and the control chip is provided with a touch sensing chip and a driving chip;
    the touch sensing chip receives a touch sensing signal formed on the light emitting module, and the control chip controls the change of the light emitting state of the light emitting module through the driving chip according to the touch sensing signal;
    the touch sensing chip and the driving chip send signals or receive signals to the light emitting module in a time division multiplexing mode.
  6. 6. The method of controlling an LED display touch sensing device of claim 5, wherein:
    the control chip controls the change of the light emitting state of the light emitting module through the driving chip according to the touch sensing signal, and the change comprises the following steps:
    and after receiving the touch sensing signal, changing the color and/or the light emitting brightness of the light emitting module.
  7. 7. The method of controlling an LED display touch sensitive device of claim 6, wherein:
    changing the color and/or the light emitting brightness of the light emitting module includes: and changing the color and/or the light-emitting brightness of the light-emitting module within a preset time after the touch sensing signal is received.
  8. 8. The method of controlling an LED display touch sensing device of claim 7, wherein:
    the preset time is a preset value sent to the display unit by the central controller; or alternatively
    The preset time is a preset value recorded by the display unit.
  9. 9. The method for controlling the LED display touch sensing device according to any one of claims 5 to 8, wherein:
    in one period, the time length of the touch sensing chip for receiving the signal of the light emitting module is equal to the time length of the driving chip for sending the signal to the light emitting module.
  10. 10. Electronic equipment comprising a display device, characterized in that the display device comprises an LED display touch-sensing device according to any of claims 1 to 4.
CN202210446251.7A 2022-04-26 2022-04-26 LED display touch sensing device, control method thereof and electronic equipment Active CN114860104B (en)

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105786266A (en) * 2014-12-25 2016-07-20 周爱国 Modular touch LED screen
CN109901749A (en) * 2019-03-05 2019-06-18 广州视源电子科技股份有限公司 A kind of touch display screen and display terminal
US20190237029A1 (en) * 2018-01-26 2019-08-01 Mobvoi Information Technology Co., LTD Display device, electronic device and display control method for screen
CN110187784A (en) * 2019-06-06 2019-08-30 珠海普林芯驰科技有限公司 LED driving and touch sensible module, LED driving and touch sensible method, computer readable storage medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105786266A (en) * 2014-12-25 2016-07-20 周爱国 Modular touch LED screen
US20190237029A1 (en) * 2018-01-26 2019-08-01 Mobvoi Information Technology Co., LTD Display device, electronic device and display control method for screen
CN109901749A (en) * 2019-03-05 2019-06-18 广州视源电子科技股份有限公司 A kind of touch display screen and display terminal
CN110187784A (en) * 2019-06-06 2019-08-30 珠海普林芯驰科技有限公司 LED driving and touch sensible module, LED driving and touch sensible method, computer readable storage medium

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