WO2017031934A1 - 触控显示面板及其驱动方法和触控显示装置 - Google Patents

触控显示面板及其驱动方法和触控显示装置 Download PDF

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Publication number
WO2017031934A1
WO2017031934A1 PCT/CN2016/071173 CN2016071173W WO2017031934A1 WO 2017031934 A1 WO2017031934 A1 WO 2017031934A1 CN 2016071173 W CN2016071173 W CN 2016071173W WO 2017031934 A1 WO2017031934 A1 WO 2017031934A1
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WO
WIPO (PCT)
Prior art keywords
touch
display
substrate
signal
common electrode
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PCT/CN2016/071173
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English (en)
French (fr)
Inventor
钱谦
金熙哲
张智
王志会
陈帅
唐滔良
陈磊
陈刚
Original Assignee
京东方科技集团股份有限公司
重庆京东方光电科技有限公司
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Application filed by 京东方科技集团股份有限公司, 重庆京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/512,594 priority Critical patent/US20180329546A1/en
Publication of WO2017031934A1 publication Critical patent/WO2017031934A1/zh

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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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • G06F3/04184—Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
    • 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
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06F3/01—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
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • 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
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery

Definitions

  • the present disclosure relates to the field of touch display technologies, and in particular, to a touch display panel, a driving method thereof, and a touch display device.
  • a touch screen using an AMP (Advanced Matrix Pad, a touch sensing electrode and a self-capacitive touch type touch panel as a touch driving electrode) has a lower resistance because it does not use ITO (Indium tin oxide) wiring.
  • Metal traces simply add a metal lead metal mask on the array substrate, and separate the independent common electrodes into self-capacitive touch electrodes.
  • the touch screen using the AMP technology needs to perform time division multiplexing on the common electrode.
  • the time division multiplexing switch 11 and the time division multiplexing controller 12, the base substrate need to be additionally provided.
  • the plurality of rows and columns of common electrodes disposed on the 10 are connected to the time division multiplexing controller 12 through the time division multiplexing switch 11, so the data bonding pin between each common electrode and the time division multiplexing switch 11
  • the number of metal wire presses is large, resulting in high cost and excessive occupation of the touch screen space, which makes it practically difficult to apply.
  • the main purpose of the present disclosure is to provide a touch display panel, a driving method thereof, and a touch display device to solve the data bonding pin between the common electrode and the time division multiplexing switch in the prior art.
  • the large number of them leads to the problem of high cost and excessive occupation of the space of the touch screen.
  • a touch display panel including a timing controller and an oppositely disposed first substrate and a second substrate, the first substrate including a substrate and disposed on the substrate
  • the common electrode, the first substrate further includes:
  • a touch switch unit connected to the timing controller through a touch control line for the touch Controlling, by the touch control signal on the control line, controlling the common electrode to access the touch driving signal during the touch period;
  • the display switch unit is connected to the timing controller through a display control line for controlling the common electrode to access the common electrode voltage signal during the display period under the control of the display control signal on the display control line.
  • the touch switch unit when the first substrate includes M rows and N columns of common electrodes, the touch switch unit includes M ⁇ N touch switch modules;
  • Each of the touch switch modules is respectively connected to a common electrode for controlling the common electrode to access the touch driving signal during the touch time period under the control of the touch control signal; both M and N Is a positive integer greater than one.
  • the touch switch module includes: a touch switch transistor, the gate is connected to the touch control line, the first pole is connected to the touch driving signal, and the second pole is connected to a common electrode.
  • the display switch unit includes: a display switch transistor, a gate connected to the display control line, a first pole connected to the common electrode voltage signal, and a second pole connected to the common electrode.
  • the touch switch transistor and the display switch transistor are both n-type transistors.
  • the touch switch transistor When the touch control signal is at a high level and the display control signal is at a low level, the touch switch transistor is turned on.
  • the display switch transistor is turned on when the touch control signal is at a low level and the display control signal is at a high level.
  • the touch switch transistor and the display switch transistor are both p-type transistors.
  • the touch control signal is at a low level and the display control signal is at a high level
  • the touch switch transistor is turned on.
  • the display switch transistor is turned on when the touch control signal is at a high level and the display control signal is at a low level.
  • the touch driving signals are simultaneously connected to all the common electrodes.
  • the touch driving signals are connected to the M-row common electrode row by row.
  • the touch driving signals are connected to the N columns of common electrodes column by column.
  • the M rows of common electrodes are scanned line by line and the N columns of common electrodes are scanned column by column.
  • the touch switch unit package Including M touch switch modules
  • the common electrodes of each row are connected to a touch switch module, and the M touch switch modules are turned on in turn.
  • the touch switch unit when the touch driving signal is connected to the N columns of the common electrode column by column, the touch switch unit includes N touch switch modules, and the common electrodes of each column are connected to a touch switch module, and the N The touch switch module is turned on in turn.
  • the first substrate is an array substrate
  • the second substrate is a color film substrate
  • the first substrate is a color film substrate
  • the second substrate is an array substrate
  • the timing controller further includes a red control line, a green control line, and a blue control line
  • the first substrate further includes a red switching transistor, a green switching transistor, and a blue switching transistor
  • the touch switch transistor, the red switch transistor, the green switch transistor, and the blue switch transistor share a data line and a source driver connection;
  • the red switching transistor has a gate connected to the red control line, a first pole connected to the source driver, and a second pole connected to the red sub-pixel for a red selection signal on the red control line Controlling whether the red sub-pixel is connected to the red data signal from the source driver;
  • the green switching transistor has a gate connected to the green control line, a first pole connected to the source driver, and a second pole connected to the green sub-pixel for green selection signal on the green control line Controlling whether the green sub-pixel is connected to the green data signal from the source driver;
  • the blue switching transistor has a gate connected to the blue control line, a first pole connected to the source driver, and a second pole connected to the blue sub-pixel for being on the blue control line Under the control of the blue selection signal, it is controlled whether the blue sub-pixel is connected to the blue data signal from the source driver.
  • the present disclosure further provides a driving method of a touch display panel for driving the above touch display panel, the driving method comprising:
  • the touch switch unit controls the common electrode included in the first substrate to access the touch drive signal
  • the display switch unit controls the common electrode to access the common electrode voltage signal.
  • the touch switch unit controls the touch control unit under the control of a touch control signal on the touch control line during the touch period
  • the step of the common electrode included in the first substrate to receive the touch driving signal includes:
  • the touch driving signal is simultaneously connected to all the common electrodes; or,
  • the touch driving signal is connected to the M row common electrode row by row;
  • the touch driving signals are connected to the N columns of the common electrodes column by column; or
  • the M rows of common electrodes are scanned line by line and the N columns of common electrodes are scanned column by column;
  • Both M and N are positive integers greater than one.
  • the present disclosure also provides a touch display device including the above touch display panel.
  • the touch display panel, the driving method thereof and the touch display device of the present disclosure respectively control the touch switch unit by using a touch control line and a display control line from the timing controller.
  • the switch unit is configured to enable the common electrode to be time-divisionally connected to the touch driving signal or the common electrode voltage signal, so as to realize the switching between the touch time period and the display time period, which can replace the time division multiplexing controller and the minute in the prior art. Time multiplexing switches, but also reducing the number of data bonding pins, saving space and reducing costs.
  • FIG. 1 is a schematic structural view of a conventional touch screen
  • FIG. 2 is a schematic structural view of a touch display panel according to some embodiments of the present disclosure.
  • FIG. 3 is a structural diagram of a touch display panel according to some embodiments of the present disclosure.
  • FIG. 4 is a detailed structural diagram of a touch display panel according to some embodiments of the present disclosure.
  • FIG. 5 is a flowchart of a driving method of a touch display panel according to some embodiments of the present disclosure.
  • the touch display panel includes a timing controller TCON and a first substrate 100 and a second substrate (200) disposed opposite to each other.
  • the first substrate 100 includes a base substrate (not shown) and a common electrode 20 disposed on the base substrate, and further includes:
  • the touch switch unit 21 is connected to the timing controller TCON through a touch control line Gate_Touch for controlling the common electrode 20 during the touch time period under the control of the touch control signal on the touch control line Gate_Touch.
  • a touch control line Gate_Touch for controlling the common electrode 20 during the touch time period under the control of the touch control signal on the touch control line Gate_Touch.
  • the display switch unit 22 is connected to the timing controller TCON through the display control line Gate_com for controlling the common electrode to access the common electrode voltage signal during the display period under the control of the display control signal on the display control line Gate_com Vcom.
  • the timing controller TCON may be disposed outside the first substrate.
  • the first substrate may be an array substrate or a color filter substrate.
  • the second substrate is a color film substrate, and when the first substrate is a color film substrate, The second substrate is an array substrate.
  • the first substrate of the embodiment of the present disclosure controls the touch switch unit 21 and the display switch unit 22 respectively by the added touch control line Gate_Touch and the display control line Gate_com connected to the timing controller TCON so that the common electrodes are time-divisionally connected.
  • the touch drive signal or the common electrode voltage signal thereby realizing the switching between the touch time period and the display time period, not only can replace the existing time division multiplexing controller and the time division multiplexing switch, but also can reduce the data bonding pin The number, save space and reduce costs.
  • the touch switch unit when the first substrate includes a common electrode disposed in an array of M rows and N columns, the touch switch unit includes M ⁇ N touch switch modules;
  • Each of the touch switch modules is respectively connected to a common electrode for controlling the common electrode to access the touch driving signal during the touch time period under the control of the touch control signal;
  • Both M and N are positive integers greater than one;
  • each public electric A touch switch module is respectively connected between the pole and the touch control line to control the touch drive signal to access the common electrode during the touch time period.
  • the touch driving signals can be simultaneously accessed. All the common electrodes can also be connected to the M-row common electrode row by row, or can be connected to the N-column common electrode column by column, or the M-row common electrode can be scanned line by line in a touch time period and then scanned column by column N.
  • the common electrode of the column regardless of the touch driving scanning mode, can only obtain the touch position accurately by the touch sensing signal.
  • the touch switch unit may include M touch switch modules, and the common electrode of each row is connected to a touch switch module, where the M The touch switch modules are sequentially turned on to control the touch driving signals to access the M rows of common electrodes line by line;
  • the touch switch unit may include N touch switch modules, and the common electrodes of each column are connected to a touch switch module, and the N touches are The switch modules are sequentially turned on to control the touch drive signals to be connected to the N columns of common electrodes column by column.
  • the touch switch module includes: a touch switch transistor, the gate is connected to the touch control line, the first pole is connected to the touch driving signal, and the second pole is connected to a common electrode.
  • the display switch unit includes: a display switch transistor, a gate connected to the display control line, a first pole connected to the common electrode voltage signal, and a second pole connected to the common electrode.
  • a touch switch transistor is respectively connected between each common electrode and the touch control line, and the display switch is different.
  • the unit only needs to include a display switching transistor.
  • the common electrode of the multi-row multi-column array is connected to the second pole of the display switching transistor. During the display period, the common electrode voltage signal is simultaneously connected to all the common electrodes.
  • the touch display panel of the present disclosure includes a timing controller TCON and a first substrate and a second substrate disposed oppositely.
  • the first substrate includes a substrate.
  • the common electrode 30 disposed on the base substrate further includes:
  • the touch switch transistor T1 has a gate connected to a touch control line Gate_Touch connected to the timing controller TCON, a first pole connected to the source driver 31, and a second pole connected to the common electrode 30 for the touch control line Gate_Touch Controlling, by the touch control signal, controlling the common electrode 30 to access the touch driving signal Td from the source driver 31 during the touch period; and
  • the switching transistor T2 is connected, the gate is connected to a display control line Gate_com connected to the timing controller TCON, the first pole is connected to the common electrode line of the output common electrode voltage signal Vcom, and the second pole is connected to the common electrode 30 for Controlling the common electrode 30 to access the common electrode voltage signal Vcom during the display period under the control of the display control signal on the display control line Gate_com;
  • the touch driving signal is not necessarily input through the source driver.
  • the touch driving signal may also be input by a special touch chip, and the touch chip may also be integrated into the source. In the drive.
  • both T1 and T2 are n-type transistors.
  • the common electrode When the touch control signal is at a high level and the display control signal is at a low level, the common electrode is connected to the touch driving signal Td, including the The touch display panel of the first substrate is switched to the touch state to complete the touch function; when the touch control signal is low level and the display control signal is high level, the common electrode is connected to the common electrode voltage signal Vcom, and the touch display panel is switched. Go to the display state and complete the display function;
  • both T1 and T2 may also be p-type transistors.
  • the common electrode When the touch control signal is low level and the display control signal is high level, the common electrode is connected to the touch driving signal Td, including the first substrate.
  • the touch display panel switches to the touch state to complete the touch function; when the touch control signal is high level and the display control signal is low level, the common electrode accesses the common electrode voltage signal Vcom, and the touch display The panel switches to the display state and the display function is completed.
  • the specific embodiment shown in FIG. 4 completes the time-division multiplexing common electrodes for touch and display by using Gate_Touch, Gate_com, T1, and T2, wherein T1 and T2 are both disposed on the first substrate,
  • the time division multiplexing switch and the time division multiplexing controller that are not disposed on the first substrate are replaced by transistors disposed on the first substrate, thereby reducing data bonding pins and reducing costs.
  • the timing controller further includes a red control line Gate_R, a green control line Gate_G and a blue control line Gate_B, the first substrate further comprising a red switching transistor TR, a green switching transistor TG and a blue switching transistor TB;
  • the touch switch transistor T1, the red switch transistor TR, the green switch transistor TF, and the blue switch transistor TB share a data line connected to the source driver 31;
  • the red switching transistor TR has a gate connected to the red control line Gate_R, a first pole connected to the source driver 31, and a second pole connected to the red sub-pixel R for being on the red control line Gate_R Controlling whether the red sub-pixel R is connected to the red data signal from the source driver 31 under the control of the red selection signal;
  • the green switching transistor TG has a gate connected to the green control line Gate_G, a first pole connected to the source driver 31, and a second pole connected to the green sub-pixel G for being on the green control line Gate_G Controlling whether the green sub-pixel G is connected to the green data signal from the source driver 31 under the control of the green selection signal;
  • the blue switching transistor TB has a gate connected to the blue control line Gate_B, a first pole connected to the source driver 31, and a second pole connected to the blue sub-pixel B for the blue Under the control of the blue selection signal on the control line Gate_B, it is controlled whether the blue sub-pixel B is connected to the blue data signal from the source driver 31.
  • the touch switch transistor T1, the red switch transistor TR, the green switch transistor TF, and the blue switch transistor TB share a data line connected to the source driver 31, that is, using MUX technology (Multiplexing, Multiplexing) is used to control the source driver 31 to transmit corresponding data signals or touch drive signals to the respective data lines and the common electrodes in a time division manner.
  • MUX technology Multiplexing, Multiplexing
  • the touch display panel adopting the MUX technology has a simple structure, can greatly reduce the volume of the touch display panel, and is easy to mass-produce and better reduce the cost.
  • the specific embodiment shown in FIG. 4 controls the touch separately by adding a touch control line Gate_Touch and a display control line Gate_com connected to the timing controller TCON on the basis of the MUX (Multiplexing) technology.
  • the switching transistor and the display switching transistor are configured to enable the common electrode to be time-divisionally connected to the touch driving signal or the common electrode voltage signal, thereby implementing switching between the touch time period and the display time period.
  • the transistors employed in all embodiments of the present disclosure may each be a thin film transistor or a field effect transistor or other device having the same characteristics.
  • the first pole can be a source or a drain
  • the second pole can be a drain or a source.
  • the transistor can be classified into an n-type transistor or a p-type transistor according to the characteristics of the transistor.
  • all of the transistors are described by taking an n-type transistor as an example. It is conceivable that those skilled in the art can perform without creative work when implemented by using a p-type transistor. It is easily conceivable and therefore also within the scope of the embodiments of the present disclosure.
  • the driving method of the touch display panel according to the embodiment of the present disclosure is used to drive the touch display panel, including:
  • Step S1 The touch switch unit controls the common electrode included in the first substrate to be connected to the touch driving signal under the control of the touch control signal on the touch control line during the touch time period;
  • Step S2 In the display period, under the control of the display control signal on the display control line, the display switch unit controls the common electrode to access the common electrode voltage signal.
  • step S1 may specifically include:
  • the touch driving signal is simultaneously connected to all the common electrodes; or,
  • the touch driving signal is connected to the M row common electrode row by row;
  • the touch driving signals are connected to the N columns of the common electrodes column by column; or
  • the M rows of common electrodes are scanned line by line and the N columns of common electrodes are scanned column by column;
  • Both M and N are positive integers greater than one.
  • the touch display panel of the embodiment of the present disclosure includes a timing controller connected to each other and the first substrate.
  • the touch display device includes the above touch display panel.
  • the touch display device may be: a liquid crystal panel, an electronic paper, an OLED (Organic Light-Emitting Diode) panel, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, etc., having any display and touch functions. Product or part.
  • OLED Organic Light-Emitting Diode

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  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Hardware Design (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)

Abstract

一种触控显示面板及其驱动方法和触控显示装置。触控显示面板，包括时序控制器（TCON）以及相对设置的第一基板（100）和第二基板（200），所述第一基板（100）包括衬底基板和设置在所述衬底基板上的公共电极（20），第一基板（100）还包括：触控开关单元（21），通过触摸控制线（Gate_Touch）与时序控制器（TCON）连接，在触摸控制线（Gate_Touch）上的触摸控制信号的控制下，在触控时间段控制所述公共电极（20）接入触控驱动信号（Td）；以及，显示开关单元（22），通过显示控制线（Gate_com）与时序控制器（TCON）连接，用于在显示控制线（Gate_com）上的显示控制信号的控制下，在显示时间段控制公共电极（20）接入公共电极电压信号（Vcom）。

Description

触控显示面板及其驱动方法和触控显示装置
相关申请的交叉引用
本申请主张在2015年8月24日在中国提交的中国专利申请号No.201510522132.5的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及触控显示技术领域，尤其涉及一种触控显示面板及其驱动方法和触控显示装置。
背景技术
采用AMP(Advanced Matrix Pad，触控感应电极又作为触控驱动电极的自容式触摸式触摸面板)技术的触摸屏由于不采用ITO(Indium tin oxide，氧化铟锡)走线，而采用电阻较低的金属走线，只需在阵列基板上增加一层金属引线的Metal Mask(金属掩膜)，并且将彼此独立的公共电极分时复用为自容式的触控电极。
然而采用AMP技术的触摸屏需要对公共电极进行分时复用，如图1所示，在现有的触摸屏中，需要另外设置分时复用开关11和分时复用控制器12，衬底基板10上设置的多行多列块状的公共电极通过分时复用开关11与分时复用控制器12连接，因此每一公共电极与分时复用开关11之间的data bonding pin(电极金属导线压合)的数量多，导致了成本高以及过度占用触摸屏的空间，从而实际应用起来比较困难。
发明内容
本公开的主要目的在于提供一种触控显示面板及其驱动方法和触控显示装置，以解决现有技术中公共电极与分时复用开关之间的data bonding pin(电极金属导线压合)的数量多，导致了成本高以及过度占用触摸屏的空间的问题。
为了达到上述目的，本公开提供了一种触控显示面板，包括时序控制器以及相对设置的第一基板和第二基板，所述第一基板包括衬底基板和设置在所述衬底基板上的公共电极，所述第一基板还包括：
触控开关单元，通过触摸控制线与所述时序控制器连接，用于在所述触摸 控制线上的触摸控制信号的控制下，在触控时间段控制所述公共电极接入触控驱动信号；以及，
显示开关单元，通过显示控制线与所述时序控制器连接，用于在所述显示控制线上的显示控制信号的控制下，在显示时间段控制所述公共电极接入公共电极电压信号。
实施时，当所述第一基板包括M行N列公共电极时，所述触控开关单元包括M×N个触控开关模块；
每一所述触控开关模块，分别与一所述公共电极连接，用于在所述触摸控制信号的控制下，在触控时间段控制该公共电极接入触控驱动信号；M和N都为大于1的正整数。
实施时，所述触控开关模块包括：触控开关晶体管，栅极与所述触摸控制线连接，第一极接入所述触控驱动信号，第二极与一所述公共电极连接。
实施时，所述显示开关单元包括：显示开关晶体管，栅极与所述显示控制线连接，第一极接入所述公共电极电压信号，第二极与所述公共电极连接。
实施时，所述触控开关晶体管和所述显示开关晶体管都为n型晶体管，当所述触摸控制信号为高电平而显示控制信号为低电平时，所述触控开关晶体管导通，当所述当触摸控制信号为低电平而所述显示控制信号为高电平时，所述显示开关晶体管导通。
实施时，所述触控开关晶体管和所述显示开关晶体管都为p型晶体管，当所述触摸控制信号为低电平而显示控制信号为高电平时，所述触控开关晶体管导通，当所述当触摸控制信号为高电平而所述显示控制信号为低电平时，所述显示开关晶体管导通。
实施时，在触控时间段，触控驱动信号同时接入所有的公共电极。
实施时，在触控时间段，触控驱动信号逐行接入M行公共电极。
实施时，在触控时间段，触控驱动信号逐列接入N列公共电极。
实施时，在触控时间段，先逐行扫描M行公共电极再逐列扫描N列公共电极。
实施时，当触控驱动信号逐行接入M行公共电极时，所述触控开关单元包 括M个触控开关模块，每一行的公共电极都连接至一触控开关模块，所述M个触控开关模块依次导通。
实施时，当触控驱动信号逐列接入N列公共电极时，所述触控开关单元包括N个触控开关模块，每一列的公共电极都连接至一触控开关模块，所述N个触控开关模块依次导通。
实施时，所述第一基板为阵列基板，所述第二基板为彩膜基板。
实施时，所述第一基板为彩膜基板，所述第二基板为阵列基板。
实施时，所述时序控制器还包括红色控制线、绿色控制线和蓝色控制线，所述第一基板还包括红色开关晶体管、绿色开关晶体管和蓝色开关晶体管；
所述触控开关晶体管、所述红色开关晶体管、所述绿色开关晶体管和蓝色开关晶体管共用一数据线与源极驱动器连接；
所述红色开关晶体管，栅极与所述红色控制线连接，第一极与所述源极驱动器连接，第二极与红色亚像素连接，用于在所述红色控制线上的红色选择信号的控制下，控制红色亚像素是否接入来自源极驱动器的红色数据信号；
所述绿色开关晶体管，栅极与所述绿色控制线连接，第一极与所述源极驱动器连接，第二极与绿色亚像素连接，用于在所述绿色控制线上的绿色选择信号的控制下，控制绿色亚像素是否接入来自源极驱动器的绿色数据信号；
所述蓝色开关晶体管，栅极与所述蓝色控制线连接，第一极与所述源极驱动器连接，第二极与蓝色亚像素连接，用于在所述蓝色控制线上的蓝色选择信号的控制下，控制蓝色亚像素是否接入来自源极驱动器的蓝色数据信号。
本公开还提供了一种触控显示面板的驱动方法，用于驱动上述的触控显示面板，所述驱动方法包括：
在触控时间段，在触摸控制线上的触摸控制信号的控制下，触控开关单元控制第一基板包括的公共电极接入触控驱动信号；
在显示时间段，在显示控制线上的显示控制信号的控制下，显示开关单元控制所述公共电极接入公共电极电压信号。
实施时，当所述第一基板包括的公共电极为M行N列阵列设置时，所述在触控时间段，在触摸控制线上的触摸控制信号的控制下，触控开关单元控制所述第一基板包括的公共电极接入触控驱动信号步骤具体包括：
在触控时间段，触控驱动信号同时接入所有的公共电极；或者，
在触控时间段，触控驱动信号逐行接入M行公共电极；或者
在触控时间段，触控驱动信号逐列接入N列公共电极；或者，
在触控时间段，先逐行扫描M行公共电极再逐列扫描N列公共电极；
M和N都为大于1的正整数。
本公开还提供了一种触控显示装置，包括上述的触控显示面板。
与现有技术相比，本公开所述的触控显示面板及其驱动方法和触控显示装置，通过增加的来自时序控制器的触摸控制线、显示控制线，来分别控制触控开关单元、显示开关单元以使得公共电极分时接入触控驱动信号或公共电极电压信号，从而实现触控时间段和显示时间段的切换，不仅可以取代现有技术中的分时复用控制器和分时复用开关，而且还能够减少data bonding pin的数目，节省空间并降低成本。
附图说明
图1是现有的触摸屏结构示意图；
图2是根据本公开一些实施例所述的触控显示面板的结构概要图；
图3是根据本公开一些实施例所述的触控显示面板的结构图；
图4是根据本公开一些实施例所述的触控显示面板的具体结构图；
图5是根据本公开一些实施例所述的触控显示面板的驱动方法的流程图。
具体实施方式
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清 楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
如图2所示，本公开实施例所述的触控显示面板，包括时序控制器TCON以及相对设置的第一基板100和第二基板(200)。如图3所示，所述第一基板100包括衬底基板(图中未示)和设置在所述衬底基板上的公共电极20，还包括：
触控开关单元21，通过触摸控制线Gate_Touch与所述时序控制器TCON连接，用于在所述触摸控制线Gate_Touch上的触摸控制信号的控制下，在触控时间段控制所述公共电极20接入触控驱动信号Td；以及，
显示开关单元22，通过显示控制线Gate_com与时序控制器TCON连接，用于在所述显示控制线Gate_com上的显示控制信号的控制下，在显示时间段控制所述公共电极接入公共电极电压信号Vcom。
在实际操作时，所述时序控制器TCON可以设置于所述第一基板外部。
具体的，所述第一基板可以为阵列基板或彩膜基板，当所述第一基板为阵列基板时，所述第二基板为彩膜基板，当所述第一基板为彩膜基板时，所述第二基板为阵列基板。
本公开实施例所述的第一基板通过增加的与时序控制器TCON连接的触摸控制线Gate_Touch、显示控制线Gate_com，来分别控制触控开关单元21、显示开关单元22以使得公共电极分时接入触控驱动信号或公共电极电压信号，从而实现触控时间段和显示时间段的切换，不仅可以取代现有的分时复用控制器和分时复用开关，而且还能够减少data bonding pin的数目，节省空间并降低成本。
根据一具体实施方式，当所述第一基板包括M行N列阵列设置的公共电极时，所述触控开关单元包括M×N个触控开关模块；
每一所述触控开关模块，分别与一所述公共电极连接，用于在所述触摸控制信号的控制下，在触控时间段控制该公共电极接入触控驱动信号；
M和N都为大于1的正整数；
即当所述第一基板包括的公共电极为多行多列阵列设置时，每一个公共电 极与触摸控制线之间分别连接有一触控开关模块，以控制触控驱动信号在触控时间段接入公共电极。
在实际操作时，在触控时间段，当所述第一基板包括的公共电极为M行N列阵列设置时(M和N都为大于1的正整数)，触控驱动信号可以同时接入所有的公共电极，也可以逐行接入M行公共电极，也可以逐列接入N列公共电极，也可以是在一个触控时间段内先逐行扫描M行公共电极再逐列扫描N列公共电极，无论采用何种触控驱动扫描方式，只需能够通过触控感应信号准确获得触摸位置即可，以上触控驱动的方式以及具体的自容式触控感应过程为本领域技术人员所公知，在此不再赘述。
具体的，当触控驱动信号逐行接入M行公共电极时，所述触控开关单元可以包括M个触控开关模块，每一行的公共电极都连接至一触控开关模块，所述M个触控开关模块依次导通，以控制触控驱动信号逐行接入M行公共电极；
当触控驱动信号逐列接入N列公共电极时，所述触控开关单元可以包括N个触控开关模块，每一列的公共电极都连接至一触控开关模块，所述N个触控开关模块依次导通，以控制触控驱动信号逐列接入N列公共电极。
实施时，所述触控开关模块包括：触控开关晶体管，栅极与所述触摸控制线连接，第一极接入所述触控驱动信号，第二极与一所述公共电极连接。
具体的，所述显示开关单元包括：显示开关晶体管，栅极与所述显示控制线连接，第一极接入所述公共电极电压信号，第二极与所述公共电极连接。
在实际操作时，当所述第一基板包括的公共电极为多行多列阵列设置时，与每一个公共电极与触摸控制线之间分别连接有一触控开关晶体管不同的是，所述显示开关单元只需包括一个显示开关晶体管即可，多行多列阵列设置的公共电极都连接于该显示开关晶体管的第二极，在显示时间段，公共电极电压信号同时接入所有的公共电极。
下面通过一具体实施例来说明本公开所述的触控显示面板：
如图2所示，本公开所述的触控显示面板包括时序控制器TCON以及相对设置的第一基板和第二基板，如图4所示，所述的第一基板包括衬底基板(图中未示)和设置在所述衬底基板上的公共电极30，还包括：
触控开关晶体管T1，栅极与连接于时序控制器TCON的触摸控制线Gate_Touch连接，第一极与源极驱动器31连接，第二极与公共电极30连接，用于在所述触摸控制线Gate_Touch上的触摸控制信号的控制下，在触控时间段控制所述公共电极30接入来自所述源极驱动器31的触控驱动信号Td；以及，
显示开关晶体管T2，栅极与连接于时序控制器TCON的显示控制线Gate_com连接，第一极与输出公共电极电压信号Vcom的公用电极线连接，第二极与所述公共电极30连接，用于在所述显示控制线Gate_com上的显示控制信号的控制下，在显示时间段控制所述公共电极30接入所述公共电极电压信号Vcom；
需要说明的是，触控驱动信号不一定是通过源极驱动器输入，在其他的实施例中，也可以由专门的触控芯片输入触控驱动信号，所述触控芯片也可整合到源极驱动器中。
在如图4所示的具体实施例中，T1和T2都为n型晶体管，当触摸控制信号为高电平，显示控制信号为低电平时，公共电极接入触控驱动信号Td，包括该第一基板的触摸显示面板切换到触控状态，完成触控功能；当触摸控制信号为低电平，显示控制信号为高电平时，公共电极接入公共电极电压信号Vcom，该触摸显示面板切换到显示状态，完成显示功能；
在实际操作时，T1和T2也可以都为p型晶体管，当所述触摸控制信号为低电平而显示控制信号为高电平时，公共电极接入触控驱动信号Td，包括该第一基板的触摸显示面板切换到触控状态，完成触控功能；当所述当触摸控制信号为高电平而所述显示控制信号为低电平时，公共电极接入公共电极电压信号Vcom，该触摸显示面板切换到显示状态，完成显示功能。
本公开如图4所示的具体实施例通过采用Gate_Touch、Gate_com、T1和T2完成了分时复用公共电极分别用于触控和显示，其中T1和T2都是设置于第一基板上的，通过设置于第一基板上的晶体管来替代并非设置于第一基板上的分时复用开关和分时复用控制器，从而减少了data bonding pin以及降低成本。
在具体实施时，在本公开如图4所示的具体实施例中，时序控制器还包括 红色控制线Gate_R、绿色控制线Gate_G和蓝色控制线Gate_B，所述第一基板还包括红色开关晶体管TR、绿色开关晶体管TG和蓝色开关晶体管TB；
所述触控开关晶体管T1、所述红色开关晶体管TR、所述绿色开关晶体管TF和蓝色开关晶体管TB共用一数据线与所述源极驱动器31连接；
所述红色开关晶体管TR，栅极与所述红色控制线Gate_R连接，第一极与所述源极驱动器31连接，第二极与红色亚像素R连接，用于在所述红色控制线Gate_R上的红色选择信号的控制下，控制红色亚像素R是否接入来自源极驱动器31的红色数据信号；
所述绿色开关晶体管TG，栅极与所述绿色控制线Gate_G连接，第一极与所述源极驱动器31连接，第二极与绿色亚像素G连接，用于在所述绿色控制线Gate_G上的绿色选择信号的控制下，控制绿色亚像素G是否接入来自源极驱动器31的绿色数据信号；
所述蓝色开关晶体管TB，栅极与所述蓝色控制线Gate_B连接，第一极与所述源极驱动器31连接，第二极与蓝色亚像素B连接，用于在所述蓝色控制线Gate_B上的蓝色选择信号的控制下，控制蓝色亚像素B是否接入来自源极驱动器31的蓝色数据信号。
在图4中，触控开关晶体管T1、所述红色开关晶体管TR、所述绿色开关晶体管TF和蓝色开关晶体管TB共用一数据线与所述源极驱动器31连接，即采用MUX技术(Multiplexing，多路复用)以控制源极驱动器31分时向各数据线和公共电极发送相应的数据信号或触控驱动信号。采用MUX技术的触控显示面板结构简单，可以大大减小触控显示面板的体积，且易于大批量生产，更好的降低成本。
本公开如图4所示的具体实施例在MUX(Multiplexing，多路复用)技术的基础上通过增加的与时序控制器TCON连接的触摸控制线Gate_Touch、显示控制线Gate_com，来分别控制触控开关晶体管、显示开关晶体管以使得公共电极分时接入触控驱动信号或公共电极电压信号，从而实现触控时间段和显示时间段的切换。
本公开所有实施例中采用的晶体管均可以为薄膜晶体管或场效应管或其他特性相同的器件。在本公开实施例中，为区分晶体管除栅极之外的两极，将 其中第一极可以为源极或漏极，第二极可以为漏极或源极。此外，按照晶体管的特性区分可以将晶体管分为n型晶体管或p型晶体管。在本公开实施例提供的驱动电路中，所有晶体管均是以n型晶体管为例进行的说明，可以想到的是在采用p型晶体管实现时是本领域技术人员可在没有做出创造性劳动前提下轻易想到的，因此也是在本公开的实施例保护范围内的。
如图5所示，本公开实施例所述的触控显示面板的驱动方法，用于驱动所述的触控显示面板，包括：
步骤S1：在触控时间段，在触摸控制线上的触摸控制信号的控制下，触控开关单元控制所述第一基板包括的公共电极接入触控驱动信号；
步骤S2：在显示时间段，在显示控制线上的显示控制信号的控制下，显示开关单元控制所述公共电极接入公共电极电压信号。
当所述第一基板包括的公共电极为M行N列阵列设置时，步骤S1可以具体包括：
在触控时间段，触控驱动信号同时接入所有的公共电极；或者，
在触控时间段，触控驱动信号逐行接入M行公共电极；或者
在触控时间段，触控驱动信号逐列接入N列公共电极；或者，
在触控时间段，先逐行扫描M行公共电极再逐列扫描N列公共电极；
M和N都为大于1的正整数。
本公开实施例所述的触控显示面板，包括相互连接的时序控制器和上述的第一基板。
本公开实施例所述的触控显示装置包括上述的触控显示面板。
所述触控显示装置可以为：液晶面板、电子纸、OLED(Organic Light-Emitting Diode，有机发光二极管)面板、液晶电视、液晶显示器、数码相框、手机、平板电脑等具有任何显示和触控功能的产品或部件。
以上所述是本公开的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (18)

  1. 一种触控显示面板，包括时序控制器以及相对设置的第一基板和第二基板，所述第一基板包括衬底基板和设置在所述衬底基板上的公共电极，其中，所述第一基板还包括：
    触控开关单元，通过触摸控制线与所述时序控制器连接，用于在所述触摸控制线上的触摸控制信号的控制下，在触控时间段控制所述公共电极接入触控驱动信号；以及，
    显示开关单元，通过显示控制线与所述时序控制器连接，用于在所述显示控制线上的显示控制信号的控制下，在显示时间段控制所述公共电极接入公共电极电压信号。
  2. 如权利要求1所述的触控显示面板，其中，当所述第一基板包括M行N列公共电极时，所述触控开关单元包括M×N个触控开关模块；
    每一所述触控开关模块，分别与一所述公共电极连接，用于在所述触摸控制信号的控制下，在触控时间段控制该公共电极接入触控驱动信号；M和N都为大于1的正整数。
  3. 如权利要求2所述的触控显示面板，其中，所述触控开关模块包括：触控开关晶体管，栅极与所述触摸控制线连接，第一极接入所述触控驱动信号，第二极与一所述公共电极连接。
  4. 如权利要求1至3中任一权利要求所述的触控显示面板，其中，所述显示开关单元包括：显示开关晶体管，栅极与所述显示控制线连接，第一极接入所述公共电极电压信号，第二极与所述公共电极连接。
  5. 如权利要求4所述的触控显示面板，其中，所述触控开关晶体管和所述显示开关晶体管都为n型晶体管，当所述触摸控制信号为高电平而显示控制信号为低电平时，所述触控开关晶体管导通，当所述当触摸控制信号为低电平而所述显示控制信号为高电平时，所述显示开关晶体管导通。
  6. 如权利要求4所述的触控显示面板，其中，所述触控开关晶体管和所述显示开关晶体管都为p型晶体管，当所述触摸控制信号为低电平而显示控制信号为高电平时，所述触控开关晶体管导通，当所述当触摸控制信号为高电平 而所述显示控制信号为低电平时，所述显示开关晶体管导通。
  7. 如权利要求2至6中任一权利要求所述的触控显示面板，其中，在触控时间段，触控驱动信号同时接入所有的公共电极。
  8. 如权利要求2至6中任一权利要求所述的触控显示面板，其中，在触控时间段，触控驱动信号逐行接入M行公共电极。
  9. 如权利要求2至6中任一权利要求所述的触控显示面板，其中，在触控时间段，触控驱动信号逐列接入N列公共电极。
  10. 如权利要求2至6中任一权利要求所述的触控显示面板，其中，在触控时间段，先逐行扫描M行公共电极再逐列扫描N列公共电极。
  11. 如权利要求8所述的触控显示面板，其中，所述触控开关单元包括M个触控开关模块，每一行的公共电极都连接至一触控开关模块，所述M个触控开关模块依次导通。
  12. 如权利要求9所述的触控显示面板，其中，所述触控开关单元包括N个触控开关模块，每一列的公共电极都连接至一触控开关模块，所述N个触控开关模块依次导通。
  13. 根据权利要求1-12中任一项所述的触控显示面板，其中，所述第一基板为阵列基板，所述第二基板为彩膜基板。
  14. 根据权利要求1-12中任一项所述的触控显示面板，其中，所述第一基板为彩膜基板，所述第二基板为阵列基板。
  15. 根据权利要求4所述的触控显示面板，其中，所述时序控制器还包括红色控制线、绿色控制线和蓝色控制线，所述第一基板还包括红色开关晶体管、绿色开关晶体管和蓝色开关晶体管；
    所述触控开关晶体管、所述红色开关晶体管、所述绿色开关晶体管和蓝色开关晶体管共用一数据线与源极驱动器连接；
    所述红色开关晶体管，栅极与所述红色控制线连接，第一极与所述源极驱动器连接，第二极与红色亚像素连接，用于在所述红色控制线上的红色选择信号的控制下，控制红色亚像素是否接入来自源极驱动器的红色数据信号；
    所述绿色开关晶体管，栅极与所述绿色控制线连接，第一极与所述源极驱动器连接，第二极与绿色亚像素连接，用于在所述绿色控制线上的绿色选择信 号的控制下，控制绿色亚像素是否接入来自源极驱动器的绿色数据信号；
    所述蓝色开关晶体管，栅极与所述蓝色控制线连接，第一极与所述源极驱动器连接，第二极与蓝色亚像素连接，用于在所述蓝色控制线上的蓝色选择信号的控制下，控制蓝色亚像素是否接入来自源极驱动器的蓝色数据信号。
  16. 一种触控显示面板的驱动方法，用于驱动如权利要求1至15中任一权利要求所述的触控显示面板，其中，所述驱动方法包括：
    在触控时间段，在触摸控制线上的触摸控制信号的控制下，触控开关单元控制第一基板包括的公共电极接入触控驱动信号；
    在显示时间段，在显示控制线上的显示控制信号的控制下，显示开关单元控制所述公共电极接入公共电极电压信号。
  17. 如权利要求16所述的驱动方法，其中，当所述第一基板包括的公共电极为M行N列阵列设置时，所述在触控时间段，在触摸控制线上的触摸控制信号的控制下，触控开关单元控制所述第一基板包括的公共电极接入触控驱动信号步骤具体包括：
    在触控时间段，触控驱动信号同时接入所有的公共电极；或者，
    在触控时间段，触控驱动信号逐行接入M行公共电极；或者
    在触控时间段，触控驱动信号逐列接入N列公共电极；或者，
    在触控时间段，先逐行扫描M行公共电极再逐列扫描N列公共电极；
    M和N都为大于1的正整数。
  18. 一种触控显示装置，包括如权利要求1至15中任一权利要求所述的触控显示面板。
PCT/CN2016/071173 2015-08-24 2016-01-18 触控显示面板及其驱动方法和触控显示装置 WO2017031934A1 (zh)

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