Display module, display device and driving method

Abstract

The invention discloses a display module, a display device and a driving method, and the display module comprises a touch peep-proof panel which is located at the light-emitting side of a display panel; the touch peep-proof panel comprises a first substrate and a second substrate which are oppositely arranged; the liquid crystal layer is positioned between the first substrate and the second substrate; the first peep-proof electrode layer is positioned between the liquid crystal layer and the first substrate; the second peep-proof electrode layer is positioned between the liquid crystal layer and the second substrate; the second peep-proof electrode layer comprises a plurality of peep-proof electrodes arranged in an array; the peep-proof electrode is reused as a touch electrode; one column of peep-proof electrodes are electrically connected with the same driving control circuit, and the driving control circuits are configured to provide peep-proof control signals and touch detection signals for the peep-proof electrodes. According to the technical scheme, the thickness and the weight of the whole display device can be reduced, the product yield is greatly improved by reducing material stacking and lowering the process complexity, the influence on the light transmittance of a display product is avoided, and the display quality is improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display module, a display device and a driving method. Background Art

[0002] With the continuous development of display technology, the application scope of display devices is becoming more and more extensive. Commonly used display devices include organic light-emitting diode display devices and liquid crystal display devices. In order to further meet customer needs and adapt to more application scenarios, it is necessary to make the display device have both anti-peeping function and touch function;

[0003] In the related art, when realizing the anti-peeping function and the touch function at the same time, it is generally adopted to install an anti-peeping module on the display panel and add an ITO coating on the surface of the glass substrate in the anti-peeping module to form an external touch (On-Cell Touch) module, or directly add a touch module outside the anti-peeping module; such a setting will cause the thickness of the overall display device to be very thick, and will increase the difficulty of the process and reduce the product yield; secondly, generally the anti-peeping module and the touch module need to be respectively provided with corresponding driving circuits, that is, the driving circuits corresponding to the anti-peeping module and the touch module are separated, which will increase the cost of the driving circuit. Summary of the invention

[0004] A display module provided by an embodiment of the present invention includes: a display panel;

[0005] A touch anti-peeping panel is located at the light-emitting side of the display panel; the touch anti-peeping panel comprises: a first substrate and a second substrate arranged opposite to each other; a liquid crystal layer located between the first substrate and the second substrate; a first anti-peeping electrode layer located between the liquid crystal layer and the first substrate; and a second anti-peeping electrode layer located between the liquid crystal layer and the second substrate.

[0006] The second anti-peeping electrode layer includes a plurality of anti-peeping electrodes arranged in an array;

[0007] The anti-peeping electrodes are reused as touch electrodes;

[0008] A plurality of driving control circuits, a row of the anti-peeping electrodes is electrically connected to the same driving control circuit, and the driving control circuit is configured to provide an anti-peeping control signal and a touch detection signal to the anti-peeping electrodes.

[0009] In some possible implementations, the driving control circuit includes: a signal loading circuit, a touch detection circuit, and a switch control circuit;

[0010] The signal loading circuit and the touch detection circuit are respectively electrically connected to the same anti-peeping electrode through the switch control circuit, and the switch control circuit is configured to control the anti-peeping electrode to be connected to the signal loading circuit or to control the anti-peeping electrode to be connected to the touch detection circuit;

[0011] When the anti-peeping electrode is connected to the signal loading circuit, the signal loading circuit is configured to load the anti-peeping control signal of the anti-peeping control signal end to the anti-peeping electrode, and load the touch detection signal of the touch detection signal end to the anti-peeping electrode;

[0012] When the anti-peeping electrode is conductively connected to the touch detection circuit, the touch detection circuit is configured to determine a touch position according to a change of the touch detection signal on the anti-peeping electrode.

[0013] In some possible implementations, the signal loading module includes: an inverting amplifier, a first resistor, a second resistor, and a first capacitor;

[0014] The first end of the inverting amplifier is electrically connected to the switch control circuit, the second end of the inverting amplifier is electrically connected to the first end of the first resistor, and the third end of the inverting amplifier is electrically connected to the anti-peeping control signal end;

[0015] The second end of the first resistor is electrically connected to the first electrode of the first capacitor;

[0016] The second electrode of the first capacitor is electrically connected to the touch detection signal terminal;

[0017] A first end of the second resistor is electrically connected to a first end of the inverting amplifier, and a second end of the second resistor is electrically connected to a second end of the inverting amplifier.

[0018] In some possible implementations, the switch control circuit includes: a selection control switch, a third resistor, and a second capacitor;

[0019] The first end of the selection control switch is electrically connected to the first end of the third resistor, the second end of the selection control switch is electrically connected to the signal loading circuit, and the third end of the selection control switch is electrically connected to the touch detection circuit;

[0020] The second end of the third resistor is electrically connected to the anti-peeping electrode;

[0021] The first electrode of the second capacitor is electrically connected to the anti-peeping electrode, and the second electrode of the second capacitor is grounded.

[0022] In some possible implementations, the touch-screen anti-peeping panel further includes: a first conductive layer and a first insulating layer;

[0023] The first conductive layer is located between the second substrate and the first insulating layer;

[0024] The first insulating layer is located between the second anti-peeping electrode layer and the first conductive layer;

[0025] The first conductive layer includes a plurality of first signal lines, and one of the anti-peeping electrodes is electrically connected to the drive control circuit via one of the first signal lines.

[0026] In some possible implementations, a driving circuit board, the plurality of driving control circuits are disposed on the driving circuit board, and are electrically connected to the first signal line in the first conductive layer in the touch anti-peeping panel through the second signal line.

[0027] A display device provided by an embodiment of the present invention includes the above-mentioned display module.

[0028] The above-mentioned display module driving method provided by the embodiment of the present invention includes: driving the display panel to display an image, and driving the touch anti-peeping panel to work;

[0029] The driving of the touch anti-peep panel to work includes:

[0030] In at least one driving cycle, a common electrode voltage is applied to the first anti-peeping electrode layer, and the driving control circuit loads a touch detection signal and an anti-peeping control signal to the anti-peeping electrode in a time-sharing manner; the touch detection signal is a pulse signal, and the anti-peeping control signal is a fixed level signal.

[0031] In some possible implementations, the driving cycle includes a first stage and a second stage, the touch detection signal includes a first touch detection signal and a second touch detection signal; the fixed level signal includes a first level signal and a second level signal;

[0032] In the first stage, a common electrode voltage is applied to the first anti-peeping electrode layer, and the driving control circuit applies a first touch detection signal and a first level signal to the anti-peeping electrode in a time-sharing manner;

[0033] In the second stage, a common electrode voltage is applied to the first anti-peeping electrode layer, and the driving control circuit applies a second touch detection signal and a second level signal to the anti-peeping electrode in a time-sharing manner.

[0034] In some possible implementations, in the first stage and the second stage, the signal loading circuit loads the touch detection signal of the touch detection signal end to the anti-peeping electrode, and the touch detection circuit determines the touch position according to the change of the touch detection signal on the anti-peeping electrode; the signal loading circuit loads the anti-peeping control signal of the anti-peeping control signal end to the anti-peeping electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Some structural schematic diagrams of display devices in related technologies;

[0036] Figure 2 are some other structural schematic diagrams of display devices in related technologies;

[0037] Figure 3 for Figure 2 A schematic diagram of a cross-sectional structure of the display device along the AA' direction;

[0038] Figure 4 for Figure 2 A schematic diagram of a cross-sectional structure of the display device along the BB' direction;

[0039] Figure 5 Some structural schematic diagrams of display modules provided by embodiments of the present invention;

[0040] Figure 6 Some other structural schematic diagrams of display modules provided by embodiments of the present invention;

[0041] Figure 7 Some further structural schematic diagrams of display modules provided by embodiments of the present invention;

[0042] Figure 8 Some further structural schematic diagrams of display modules provided by embodiments of the present invention;

[0043] Fig. 9 Some further structural schematic diagrams of display modules provided by embodiments of the present invention;

[0044] Fig.10 The embodiment of the present invention provides Fig. 9 A schematic diagram of the cross-sectional structure of the display module along the CC' direction;

[0045] Fig.11 A flow chart of a method for driving a display module provided by an embodiment of the present invention;

[0046] Fig.12 Some signal timing diagrams provided for embodiments of the present invention;

[0047] Fig.13 Other signal timing diagrams provided for embodiments of the present invention;

[0048] Fig.14 Some further signal timing diagrams provided for embodiments of the present invention;

[0049] Fig.15 Some further structural schematic diagrams of display modules provided by embodiments of the present invention;

[0050] Fig.16 Some further structural schematic diagrams of display modules provided by embodiments of the present invention;

[0051] Fig.17 Some further signal timing diagrams are provided for embodiments of the present invention. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. And in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0053] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0054] It should be noted that the sizes and shapes of the figures in the accompanying drawings do not reflect the actual proportions, but are only intended to illustrate the content of the present invention. The same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions.

[0055] In the related art, when a display device realizes both an anti-peeping function and a touch function, an anti-peeping module is generally mounted on the display panel and an ITO coating is added to the surface of the glass substrate in the anti-peeping module to form an on-cell touch module, or a touch module is directly added outside the anti-peeping module;

[0056] For example, Figure 1As shown, the anti-peeping module 1 includes: a metal layer 10, an electrode layer 20, a liquid crystal layer 30, and a glass substrate 40; the touch module 2 includes: a metal layer 10, an electrode layer 20; wherein the touch module 2 is generally arranged on the surface of the glass substrate 40 in the anti-peeping module 1; and in order to prevent the touch module 2 from being damaged, it is necessary to add a layer of protective glass on the surface of the touch module 2, which makes the thickness of the overall display device very thick, and increases the process difficulty and reduces the product yield.

[0057] Moreover, in the related art, adding 1 to 2 layers of metal layers and protective glass to the anti-peeping module will further reduce the light transmittance of the display product, thereby reducing the brightness of the display product, and further causing a decrease in display quality.

[0058] Secondly, generally, the anti-peeping module and the touch module need to be provided with corresponding driving circuits, that is, the driving circuits corresponding to the anti-peeping module and the touch module are separated, so they need to be electrically connected to the printed circuit board (PCB) outside the display panel through different flexible printed circuits (FPC);

[0059] For example, Figure 2 As shown, the privacy protection module is electrically connected to the printed circuit board PCB through the flexible circuit board FPC2, and the touch module is electrically connected to the printed circuit board PCB through the flexible circuit board FPC1; the separation of the drive circuits corresponding to the privacy protection module and the touch module will lead to a doubling of the usage of related components, that is, an increase in the cost of the drive circuit, and will also lead to a larger size of the printed circuit board.

[0060] And, if Figure 3 and Figure 4 As shown, the anti-peeping module 1 is crimped to the flexible circuit board FPC2 through the metal layer 20, and the metal layer 20 of the touch module 2 is crimped to the flexible circuit board FPC1. It can be seen that the metal layers of the anti-peeping module 1 and the touch module 2 crimped to the flexible circuit board are not on the same layer, so at least two crimping processes are required, which will increase the complexity of the crimping process and reduce the yield, further leading to an increase in the cost of the circuit.

[0061] In order to solve the above problems, the embodiment of the present invention provides a display module, such as Figure 5 and Figure 6 As shown, it includes: a display panel 100;

[0062] The touch anti-peeping panel 200 is located at the light-emitting side of the display panel 100; the touch anti-peeping panel 200 includes: a first substrate 201 and a second substrate 202 arranged opposite to each other; a liquid crystal layer 203 located between the first substrate 201 and the second substrate 202; a first anti-peeping electrode layer 204 located between the liquid crystal layer 203 and the first substrate 201; and a second anti-peeping electrode layer 205 located between the liquid crystal layer 203 and the second substrate 202.

[0063] The second anti-peeping electrode layer 205 includes a plurality of anti-peeping electrodes 2051 arranged in an array;

[0064] The anti-peeping electrode 2051 is reused as the touch control electrode 2052;

[0065] A plurality of driving control circuits D, a column of anti-peeping electrodes 2051 is electrically connected to the same driving control circuit D, and the driving control circuit D is configured to provide an anti-peeping control signal and a touch detection signal to the anti-peeping electrode 2051 .

[0066] In an embodiment of the present invention, by making the touch anti-peeping panel include a first substrate and a second substrate arranged opposite to each other; a liquid crystal layer located between the first substrate and the second substrate; a first anti-peeping electrode layer located between the liquid crystal layer and the first substrate; and a second anti-peeping electrode layer located between the liquid crystal layer and the second substrate; and making a plurality of array-arranged anti-peeping electrodes in the second anti-peeping electrode layer reused as touch electrodes, the thickness and weight of the overall display device can be reduced, and by reducing material stacking and reducing process complexity, the product yield can be greatly improved, and the light transmittance of the display product can be avoided from being affected, thereby improving the display quality.

[0067] And by setting up a driving control circuit, the touch function and anti-peeping function of the touch anti-peeping panel are realized. When the driving control circuit provides an anti-peeping control signal, the touch anti-peeping panel has an anti-peeping function; when the driving control circuit provides a touch detection signal, the touch anti-peeping panel has a touch function; and the anti-peeping control signal loaded by the driving control circuit can be used to adjust the anti-peeping angle of the area corresponding to each anti-peeping electrode in the touch anti-peeping panel.

[0068] Exemplarily, the display area of ​​the display panel includes a plurality of pixel units arranged in an array, and the pixel unit includes a plurality of sub-pixels. Exemplarily, each pixel unit includes a plurality of sub-pixels. For example, the pixel unit may include a red sub-pixel, a green sub-pixel, and a blue sub-pixel, so that color display can be achieved by mixing red, green, and blue. Alternatively, the pixel unit may also include a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel, so that color display can be achieved by mixing red, green, blue, and white. Of course, in actual applications, the luminous color of the sub-pixels in the pixel unit can be designed and determined according to the actual application environment, and is not limited here.

[0069] For example, Figure 6 As shown, the touch anti-peeping panel can be divided into multiple areas according to the anti-peeping electrode 2051, and divided into multiple rows in the horizontal direction, namely the first row A1, the second row B1, the third row C1, the fourth row D1, the fifth row E1, the sixth row F1, the seventh row G1, the eighth row H1, and the ninth row I1; and divided into multiple columns in the vertical direction, namely the first column 01, the second column 02, the third column 03, the fourth column 04, the fifth column 05, the sixth column 06, the seventh column 07, the eighth column 08, the ninth column 09, the tenth column 010, the eleventh column 011, the twelfth column 012, the thirteenth column 013, the fourteenth column 014, and the fifteenth column 015.

[0070] Among them, the anti-peeping electrode 2051 is arranged in the intersection area A101 of the first row A1 and the first column 01; the anti-peeping electrode 2051 is arranged in the intersection area A102 of the first row A1 and the second column 02; the anti-peeping electrode 2051 is arranged in the intersection area A103 of the first row A1 and the third column 03; the anti-peeping electrode 2051 is arranged in the intersection area A104 of the first row A1 and the fourth column 04; the anti-peeping electrode 2051 is arranged in the intersection area A105 of the first row A1 and the fifth column 05; the anti-peeping electrode 2051 is arranged in the intersection area A106 of the first row A1 and the sixth column 06; the anti-peeping electrode 2051 is arranged in the intersection area A107 of the first row A1 and the seventh column 07; the anti-peeping electrode 2051 is arranged in the intersection area A108 of the first row A1 and the eighth column 08; An anti-peeping electrode 2051 is arranged in the intersection area A109 of the ninth column 09; an anti-peeping electrode 2051 is arranged in the intersection area A1010 between the first row A1 and the tenth column 010; an anti-peeping electrode 2051 is arranged in the intersection area A1011 between the first row A1 and the eleventh column 011; an anti-peeping electrode 2051 is arranged in the intersection area A1012 between the first row A1 and the twelfth column 012; an anti-peeping electrode 2051 is arranged in the intersection area A104 between the first row A1 and the thirteenth column 013; an anti-peeping electrode 2051 is arranged in the intersection area A1014 between the first row A1 and the fourteenth column 014; an anti-peeping electrode 2051 is arranged in the intersection area A1015 between the first row A1 and the fifteenth column 015; and the same goes for the areas of other rows, that is, an anti-peeping electrode 2051 is arranged in each intersection area.

[0071] Among them, the anti-peeping electrode 2051 in the first column 01 is electrically connected to the drive control circuit D-1; the anti-peeping electrode 2051 in the second column 02 is electrically connected to the drive control circuit D-2; the anti-peeping electrode 2051 in the third column 03 is electrically connected to the drive control circuit D-3; the anti-peeping electrode 2051 in the fourth column 04 is electrically connected to the drive control circuit D-4; the anti-peeping electrode 2051 in the fifth column 05 is electrically connected to the drive control circuit D-5; the anti-peeping electrode 2051 in the sixth column 06 is electrically connected to the drive control circuit D-6; the anti-peeping electrode 2051 in the seventh column 07 is electrically connected to the drive control circuit D-7; the anti-peeping electrode 2051 in the eighth column 08 is electrically connected to the drive control circuit The anti-peeping electrode 2051 in the ninth column 09 is electrically connected to the driving control circuit D-9; the anti-peeping electrode 2051 in the tenth column 010 is electrically connected to the driving control circuit D-10; the anti-peeping electrode 2051 in the eleventh column 011 is electrically connected to the driving control circuit D-11; the anti-peeping electrode 2051 in the twelfth column 012 is electrically connected to the driving control circuit D-12; the anti-peeping electrode 2051 in the thirteenth column 013 is electrically connected to the driving control circuit D-13; the anti-peeping electrode 2051 in the fourteenth column 014 is electrically connected to the driving control circuit D-14; the anti-peeping electrode 2051 in the fifteenth column 015 is electrically connected to the driving control circuit D-15.

[0072] In some embodiments of the present invention, Figure 7 As shown, the driving control circuit D includes: a signal loading circuit D20, a touch detection circuit D30 and a switch control circuit D10;

[0073] The signal loading circuit D20 and the touch detection circuit D30 are electrically connected to the same anti-peeping electrode 2051 through the switch control circuit D10, respectively. The switch control circuit D10 is configured to control the anti-peeping electrode 2051 to be conductive with the signal loading circuit D20 or to control the anti-peeping electrode 2051 to be conductive with the touch detection circuit D30.

[0074] When the anti-peeping electrode 2051 is connected to the signal loading circuit D20, the signal loading circuit D20 is configured to load the anti-peeping control signal of the anti-peeping control signal terminal CS1 to the anti-peeping electrode 2051, and load the touch detection signal of the touch detection signal terminal CS2 to the anti-peeping electrode 2051;

[0075] When the anti-peeping electrode 2051 is conductively connected to the touch detection circuit D30 , the touch detection circuit D30 is configured to determine the touch position according to the change of the touch detection signal on the anti-peeping electrode 2051 .

[0076] The driving control circuit in the embodiment of the present invention can enable the touch anti-peeping panel to realize the touch function and the anti-peeping function through the cooperation of the signal loading circuit, the touch detection circuit and the switch control circuit, and can reduce the use of related components, that is, reduce the complexity of the driving control circuit and the number of electronic components, reduce the circuit cost, and avoid making the size of the printed circuit board larger.

[0077] It should be noted that the drive control circuit is provided with a plurality of switch control circuits, the number of the switch control circuits in the drive control circuit is the same as the number of each column of the anti-peeping electrodes, and one anti-peeping electrode is electrically connected to one switch control circuit. Figure 6 As shown, a row of anti-peeping electrodes in the touch anti-peeping panel is provided with 9, and each driving control circuit D (i.e. Figure 6 D-1 to D-15) are each provided with 9 switch control circuits, wherein the 9 switch control circuits are electrically connected to the 9 anti-peeping electrodes one by one.

[0078] This arrangement can drive multiple anti-peeping electrodes through one drive control circuit, thereby reducing the space occupied by the drive control circuit and reducing the complexity of circuit wiring.

[0079] In some embodiments of the present invention, Figure 8 As shown, the signal loading module D20 includes: an inverting amplifier OP1, a first resistor R1, a second resistor R2 and a first capacitor C1;

[0080] A first end of the inverting amplifier OP1 is electrically connected to the switch control circuit D10, a second end of the inverting amplifier OP1 is electrically connected to a first end of the first resistor R1, and a third end of the inverting amplifier OP1 is electrically connected to the anti-peeping control signal end CS1;

[0081] The second end of the first resistor R1 is electrically connected to the first electrode of the first capacitor C1;

[0082] The second electrode of the first capacitor C1 is electrically connected to the touch detection signal terminal CS2;

[0083] A first end of the second resistor R2 is electrically connected to a first end of the inverting amplifier OP1 , and a second end of the second resistor R2 is electrically connected to a second end of the inverting amplifier OP1 .

[0084] In some embodiments of the present invention, Figure 8 As shown, the switch control circuit D10 includes: a selection control switch SW1, a third resistor R3 and a second capacitor C2;

[0085] The first end of the selection control switch SW1 is electrically connected to the first end of the third resistor R3, the second end of the selection control switch SW1 is electrically connected to the signal loading circuit D20, and the third end of the selection control switch SW1 is electrically connected to the touch detection circuit D30;

[0086] The second end of the third resistor R3 is electrically connected to the anti-peeping electrode 2051;

[0087] A first electrode of the second capacitor C2 is electrically connected to the anti-peeping electrode 2051 , and a second electrode of the second capacitor C2 is connected to the ground terminal GND.

[0088] In some embodiments of the present invention, Figure 5 As shown, the touch anti-peeping panel 200 further includes: a first conductive layer 206 and a first insulating layer 207; wherein the first conductive layer 206 is located between the second substrate 202 and the first insulating layer 207; the first insulating layer 207 is located between the second anti-peeping electrode layer 205 and the first conductive layer 206; wherein, as Figure 6 As shown, the first conductive layer includes a plurality of first signal lines S1, and one anti-peeping electrode 2051 is electrically connected to the driving control circuit D through one first signal line S1.

[0089] For example, Figure 6 As shown, the plurality of first signal lines S1 are electrically connected to the anti-peeping electrodes 2051 in a one-to-one correspondence.

[0090] For example, Figure 5 As shown, the touch anti-peeping panel 200 further includes: a second conductive layer 208 and a second insulating layer 209 ; wherein the second conductive layer 208 is located between the first substrate 201 and the second insulating layer 209 ; and the second insulating layer 209 is located between the first anti-peeping electrode layer 204 and the second conductive layer 208 .

[0091] In some embodiments of the present invention, Fig. 9 and Fig.10 As shown, it also includes: a driving circuit board PCB1, a plurality of driving control circuits D are arranged on the driving circuit board PCB1, and are electrically connected to the first signal line in the first conductive layer 206 in the touch anti-peeping panel through the second signal line S2 (which can be located in the flexible circuit board FPC3).

[0092] The size of the driving circuit board corresponding to the touch anti-peeping panel in the embodiment of the present invention is small, that is, the size of the printed circuit board is simplified, the space occupancy rate is reduced, and it is electrically connected to the touch anti-peeping panel in the display panel only through a single flexible circuit board. Secondly, it only needs to be crimped with the first conductive layer of the touch anti-peeping panel, reducing the number of crimping processes, thereby reducing the complexity of the crimping process and improving the yield, and further reducing the cost of the circuit.

[0093] An embodiment of the present invention also provides a method for driving a display module, including: driving a display panel to display an image, and driving a touch anti-peeping panel to work; wherein driving the touch anti-peeping panel to work includes: within at least one driving cycle, loading a common electrode voltage to a first anti-peeping electrode layer, and driving a control circuit to load a touch detection signal and an anti-peeping control signal to the anti-peeping electrode in a time-sharing manner; wherein the touch detection signal is a pulse signal, and the anti-peeping control signal is a fixed level signal.

[0094] In some embodiments of the present invention, the driving cycle includes a first stage and a second stage, the touch detection signal includes a first touch detection signal and a second touch detection signal; the fixed level signal includes a first level signal and a second level signal; Fig.11 Shown

[0095] S100, in the first stage, applying a common electrode voltage to the first anti-peeping electrode layer, and driving the control circuit to apply a first touch detection signal and a first level signal to the anti-peeping electrode in a time-sharing manner;

[0096] S200, in the second stage, applying a common electrode voltage to the first anti-peeping electrode layer, and driving the control circuit to apply a second touch detection signal and a second level signal to the anti-peeping electrode in a time-sharing manner.

[0097] Exemplarily, the common electrode voltage Vcom applied to the first anti-peeping electrode layer is as follows: Fig.12 As shown, V represents a voltage value and T represents time. The common electrode voltage is a fixed level signal.

[0098] For example, the touch detection signal cs2 and the anti-peeping control signal cs1 are loaded to the anti-peeping electrode in a time-sharing manner. Fig.13 As shown, V represents voltage value and T represents time.

[0099] In some embodiments of the present invention, in the first stage and the second stage, the signal loading circuit loads the touch detection signal of the touch detection signal end to the anti-peeping electrode, and the touch detection circuit determines the touch position according to the change of the touch detection signal on the anti-peeping electrode; the signal loading circuit loads the anti-peeping control signal of the anti-peeping control signal end to the anti-peeping electrode.

[0100] Below Figure 5 The display module and Figure 8 As an example, the drive control circuit shown in Fig.14 The signal timing diagram shown describes the working process of the display module and the driving control circuit provided by the embodiment of the present disclosure.

[0101] Furthermore, the first stage T1 and the second stage T2 in one driving cycle H are selected for description.

[0102] In the first stage T1, first, a common electrode voltage is applied to the first anti-peeping electrode layer 204, and the selection control switch SW1 in the switch control circuit D10 turns on the anti-peeping electrode 2051 and the inverting amplifier OP1 in the signal loading circuit D20, and the signal loading circuit D20 loads the first touch detection signal of the touch detection signal terminal CS2 to the anti-peeping electrode 2051; thus, the anti-peeping electrode 2051 has the first touch detection signal;

[0103] Secondly, after the first touch detection signal is loaded on the anti-peeping electrode 2051, the selection control switch SW1 in the switch control circuit D10 turns on the anti-peeping electrode 2051 and the touch detection circuit D30, and the touch detection circuit D30 determines the touch position according to the change of the first touch detection signal on the anti-peeping electrode 2051;

[0104] Exemplarily, the touch detection circuit D30 may be used to determine whether the touch anti-peeping panel is in a touch state, and when the touch anti-peeping panel is in a touch state, the touch position may be determined;

[0105] When the user touches a certain cross region of the touch anti-peeping panel, the capacitance value of the anti-peeping electrode 2051 in the cross region will increase, and the voltage value of the first touch detection signal on the anti-peeping electrode 2051 will change. Since the anti-peeping electrode 2051 is connected to the touch detection circuit D30 at this time, the touch detection circuit D30 can detect the change in the voltage value of the first touch detection signal on the anti-peeping electrode 2051, thereby determining the touch position;

[0106] When the user does not touch the touch anti-peeping panel, the capacitance value of the anti-peeping electrode 2051 in the touch anti-peeping panel will not change, and the voltage value of the first touch detection signal on the anti-peeping electrode 2051 will not change. Since the anti-peeping electrode 2051 is connected to the touch detection circuit D30 at this time, the touch detection circuit D30 can detect that the voltage value of the first touch detection signal on the anti-peeping electrode 2051 has not changed, thereby determining that the touch anti-peeping panel is not in the touch state;

[0107] Secondly, after the touch detection circuit D30 determines whether the touch anti-peeping panel is in the touch state, the selection control switch SW1 in the switch control circuit D10 turns on the anti-peeping electrode 2051 and the inverting amplifier OP1 in the signal loading circuit D20, and the signal loading circuit D20 loads the first level signal of the anti-peeping control signal terminal CS1 to the anti-peeping electrode 2051; the touch anti-peeping panel is in the anti-peeping state, wherein the voltage value of the first level signal loaded on the anti-peeping electrode 2051 is different, and the anti-peeping angle of the touch anti-peeping panel is different;

[0108] Finally, after the first level signal is loaded on the anti-peeping electrode 2051, the selection control switch SW1 in the switch control circuit D10 is in the closed state, and the first level signal is maintained on the anti-peeping electrode 2051, so that the touch anti-peeping panel is in the anti-peeping state.

[0109] It should be noted that if Fig.15 As shown, the liquid crystal layer 203 includes many liquid crystal molecules. When there is no voltage difference between the first anti-peeping electrode layer 204 and the second anti-peeping electrode layer 205, that is, the signal loading circuit D20 does not load the first level signal of the anti-peeping control signal terminal CS1 to the anti-peeping electrode 2051, the liquid crystal molecules will not be deflected, that is, the light L is incident in parallel, and after passing through the touch anti-peeping panel 200, the light L is still emitted in parallel, that is, the touch anti-peeping panel 200 does not enable the anti-peeping function at this time.

[0110] like Fig.16 As shown, when the driving control circuit D starts to work, that is, when the signal loading circuit D20 loads the first level signal of the anti-peeping control signal terminal CS1 onto the anti-peeping electrode 2051, there is a voltage difference between the first anti-peeping electrode layer 204 and the anti-peeping electrode 2051 in the second anti-peeping electrode layer 205, and an electric field driving the liquid crystal molecules to deflect is generated, wherein the intensity of the electric field is related to the voltage difference between the first level signal and the common electrode voltage, and the greater the voltage difference, the stronger the electric field intensity; then the light L is incident in parallel, and will be refracted after passing through the touch anti-peeping panel 200, so that the exit angle of the light L changes. This narrows the viewing angle of the display device, achieves anti-peeping, prevents others from snooping on private information, and protects the information security of users.

[0111] It should be noted that liquid crystal molecules are polar molecules containing polar groups, and liquid crystal molecules have a specific charge distribution. Under the action of an electric field, the dipoles of the liquid crystal molecules will be oriented in the direction of the electric field, causing the original arrangement of the liquid crystal molecules to change. This change in arrangement further causes the optical properties of the liquid crystal to change, which is the electro-optical effect of the liquid crystal. In order to avoid the destruction of the characteristics of the liquid crystal molecules, the driving voltage of the liquid crystal molecules must be changed in polarity. The driving voltage is divided into two polarities: positive and negative.

[0112] Exemplarily, in the first stage, the first touch detection signal and the first level signal are positive polarity, and in the second stage, the second touch detection signal and the second level signal are negative polarity; of course, in the first stage, the first touch detection signal and the first level signal may also be negative polarity, and in the second stage, the second touch detection signal and the second level signal may also be positive polarity; no specific limitation is made here.

[0113] In the second stage T2, first, the common electrode voltage is applied to the first anti-peeping electrode layer 204, and the selection control switch SW1 in the switch control circuit D10 turns on the anti-peeping electrode 2051 and the inverting amplifier OP1 in the signal loading circuit D20, and the signal loading circuit D20 loads the second touch detection signal of the touch detection signal terminal CS2 to the anti-peeping electrode 2051; thus, the anti-peeping electrode 2051 has the second touch detection signal;

[0114] Secondly, after the second touch detection signal is loaded on the anti-peeping electrode 2051, the selection control switch SW1 in the switch control circuit D10 turns on the anti-peeping electrode 2051 and the touch detection circuit D30, and the touch detection circuit D30 determines the touch position according to the change of the second touch detection signal on the anti-peeping electrode 2051;

[0115] Exemplarily, the touch detection circuit D30 may be used to determine whether the touch anti-peeping panel is in a touch state, and when the touch anti-peeping panel is in a touch state, the touch position may be determined;

[0116] When the user touches a certain area of ​​the touch anti-peeping panel, the capacitance value of the anti-peeping electrode 2051 in the area will increase, and the voltage value of the second touch detection signal on the anti-peeping electrode 2051 will change. Since the anti-peeping electrode 2051 is connected to the touch detection circuit D30 at this time, the touch detection circuit D30 can detect the change in the voltage value of the second touch detection signal on the anti-peeping electrode 2051, thereby determining the touch position;

[0117] When the user does not touch the touch anti-peeping panel, the capacitance value of the anti-peeping electrode 2051 in the touch anti-peeping panel will not change, and the voltage value of the second touch detection signal on the anti-peeping electrode 2051 will not change. Since the anti-peeping electrode 2051 is connected to the touch detection circuit D30 at this time, the touch detection circuit D30 can detect that the voltage value of the second touch detection signal on the anti-peeping electrode 2051 has not changed, thereby determining that the touch anti-peeping panel is not in the touch state;

[0118] Secondly, after the touch detection circuit D30 determines whether the touch anti-peeping panel is in the touch state, the selection control switch SW1 in the switch control circuit D10 turns on the anti-peeping electrode 2051 and the inverting amplifier OP1 in the signal loading circuit D20, and the signal loading circuit D20 loads the second level signal of the anti-peeping control signal terminal CS1 to the anti-peeping electrode 2051; the touch anti-peeping panel is in the anti-peeping state, wherein the voltage value of the second level signal loaded on the anti-peeping electrode 2051 is different, and the anti-peeping angle of the touch anti-peeping panel is different.

[0119] Finally, after the second level signal is loaded on the anti-peeping electrode 2051, the selection control switch SW1 in the switch control circuit D10 is in the closed state, and the second level signal is maintained on the anti-peeping electrode 2051, so that the touch anti-peeping panel is in the anti-peeping state.

[0120] For example, Fig.17 As shown, the driving control circuit D scans the anti-peeping electrodes 2051 in the touch anti-peeping panel row by row, that is, scans the first row A1, the second row B1, the third row C1, the fourth row D1, the fifth row E1, the sixth row F1, the seventh row G1, the eighth row H1, and the ninth row I1 in sequence; and after scanning the anti-peeping electrodes 2051 in the intersection area (i.e., A101-A1015) of the first row A1 and each column, the driving control circuit D scans the anti-peeping electrodes 2051 in the intersection area (i.e., A101-A1015) of the second row B1 and each column in sequence. The anti-peeping electrode 2051 in the intersection area between the third row C1 and each column (i.e., C101-C1015) is scanned, and then the anti-peeping electrode 2051 in the intersection area between the eighth row H1 and each column (i.e., H101-H1015) is scanned, and then the anti-peeping electrode 2051 in the intersection area between the ninth row I1 and each column (i.e., I101-I1015) is scanned.

[0121] Below Figure 6 Take the display module shown as an example, combined with Fig.17 The signal timing diagram shown describes the working process of the display module provided by the embodiment of the present disclosure.

[0122] When the driving control circuits D-1 to D-15 scan the anti-peeping electrodes 2051 in the first row A1, the driving control circuits D-1 to D-15 work simultaneously, that is, the driving control circuit D-1 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrodes 2051 in the intersection area A101 in a time-sharing manner; the driving control circuit D-2 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrodes 2051 in the intersection area A102 in a time-sharing manner; the driving control circuit D-3 loads the touch detection signal to the anti-peeping electrodes 2051 in the intersection area A103 in a time-sharing manner. and anti-peeping control signals; the driving control circuit D-4 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area A104 in a time-sharing manner; the driving control circuit D-5 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area A105 in a time-sharing manner; the driving control circuit D-6 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area A106 in a time-sharing manner; the driving control circuit D-7 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area A107 in a time-sharing manner The driving control circuit D-8 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area A108 in a time-sharing manner; the driving control circuit D-9 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area A109 in a time-sharing manner; the driving control circuit D-10 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area A1010 in a time-sharing manner; the driving control circuit D-11 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area A1011 in a time-sharing manner; The driving control circuit D-12 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area A1012 in a time-sharing manner; the driving control circuit D-13 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area A1013 in a time-sharing manner; the driving control circuit D-14 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area A1014 in a time-sharing manner; the driving control circuit D-15 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area A1015 in a time-sharing manner;

[0123] When the driving control circuits D-1 to D-15 scan the anti-peeping electrodes 2051 in the second row B1, the driving control circuits D-1 to D-15 work simultaneously, that is, the driving control circuit D-1 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrodes 2051 in the intersection area B101 in a time-sharing manner; the driving control circuit D-2 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrodes 2051 in the intersection area B102 in a time-sharing manner; the driving control circuit D-3 loads the touch detection signal to the anti-peeping electrodes 2051 in the intersection area B103 in a time-sharing manner. and anti-peeping control signals; the driving control circuit D-4 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area B104 in a time-sharing manner; the driving control circuit D-5 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area B105 in a time-sharing manner; the driving control circuit D-6 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area B106 in a time-sharing manner; the driving control circuit D-7 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area B107 in a time-sharing manner The driving control circuit D-8 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area B108 in a time-sharing manner; the driving control circuit D-9 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area B109 in a time-sharing manner; the driving control circuit D-10 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area B1010 in a time-sharing manner; the driving control circuit D-11 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area B1011 in a time-sharing manner; The driving control circuit D-12 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area B1012 in a time-sharing manner; the driving control circuit D-13 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area B1013 in a time-sharing manner; the driving control circuit D-14 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area B1014 in a time-sharing manner; the driving control circuit D-15 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area B1015 in a time-sharing manner;

[0124] When the driving control circuits D-1 to D-15 scan the anti-peeping electrodes 2051 in the third row C1, the driving control circuits D-1 to D-15 work simultaneously, that is, the driving control circuit D-1 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrodes 2051 in the intersection area C101 in a time-sharing manner; the driving control circuit D-2 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrodes 2051 in the intersection area C102 in a time-sharing manner; the driving control circuit D-3 loads the touch detection signal to the anti-peeping electrodes 2051 in the intersection area C103 in a time-sharing manner. and anti-peeping control signals; the driving control circuit D-4 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C104 in a time-sharing manner; the driving control circuit D-5 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C105 in a time-sharing manner; the driving control circuit D-6 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C106 in a time-sharing manner; the driving control circuit D-7 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C107 in a time-sharing manner The driving control circuit D-8 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C108 in a time-sharing manner; the driving control circuit D-9 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C109 in a time-sharing manner; the driving control circuit D-10 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C1010 in a time-sharing manner; the driving control circuit D-11 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C1011 in a time-sharing manner; The driving control circuit D-12 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C1012 in a time-sharing manner; the driving control circuit D-13 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C1013 in a time-sharing manner; the driving control circuit D-14 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C1014 in a time-sharing manner; the driving control circuit D-15 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area C1015 in a time-sharing manner;

[0125] ...When the driving control circuits D-1 to D-15 scan the anti-peeping electrodes 2051 in the eighth row H1, the driving control circuits D-1 to D-15 work simultaneously, that is, the driving control circuit D-1 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrodes 2051 in the intersection area H101 in a time-sharing manner; the driving control circuit D-2 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrodes 2051 in the intersection area H102 in a time-sharing manner; the driving control circuit D-3 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrodes 2051 in the intersection area H103 in a time-sharing manner. The driving control circuit D-4 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H104 in a time-sharing manner; the driving control circuit D-5 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H105 in a time-sharing manner; the driving control circuit D-6 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H106 in a time-sharing manner; the driving control circuit D-7 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H107 in a time-sharing manner. The driving control circuit D-8 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H108 in a time-sharing manner; the driving control circuit D-9 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H109 in a time-sharing manner; the driving control circuit D-10 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H1010 in a time-sharing manner; the driving control circuit D-11 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H1011 in a time-sharing manner; The driving control circuit D-12 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H1012 in a time-sharing manner; the driving control circuit D-13 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H1013 in a time-sharing manner; the driving control circuit D-14 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H1014 in a time-sharing manner; the driving control circuit D-15 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area H1015 in a time-sharing manner;

[0126] When the driving control circuits D-1 to D-15 scan the anti-peeping electrode 2051 in the ninth row I1, the driving control circuits D-1 to D-15 work simultaneously, that is, the driving control circuit D-1 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I101 in a time-sharing manner; the driving control circuit D-2 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I102 in a time-sharing manner; the driving control circuit D-3 loads the touch detection signal to the anti-peeping electrode 2051 in the intersection area I103 in a time-sharing manner. and anti-peeping control signals; the driving control circuit D-4 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area I104 in a time-sharing manner; the driving control circuit D-5 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area I105 in a time-sharing manner; the driving control circuit D-6 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area I106 in a time-sharing manner; the driving control circuit D-7 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the cross area I107 in a time-sharing manner The driving control circuit D-8 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I108 in a time-sharing manner; the driving control circuit D-9 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I109 in a time-sharing manner; the driving control circuit D-10 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I1010 in a time-sharing manner; the driving control circuit D-11 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I1011 in a time-sharing manner; The driving control circuit D-12 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I1012 in a time-sharing manner; the driving control circuit D-13 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I1013 in a time-sharing manner; the driving control circuit D-14 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I1014 in a time-sharing manner; the driving control circuit D-15 loads the touch detection signal and the anti-peeping control signal to the anti-peeping electrode 2051 in the intersection area I1015 in a time-sharing manner;

[0127] Among them, the voltage value of the anti-peeping control signal provided by the driving control circuit D-1 is V1, the voltage value of the anti-peeping control signal provided by the driving control circuit D-2 is V2, the voltage value of the anti-peeping control signal provided by the driving control circuit D-3 is V3, the voltage value of the anti-peeping control signal provided by the driving control circuit D-4 is V4, the voltage value of the anti-peeping control signal provided by the driving control circuit D-5 is V5, the voltage value of the anti-peeping control signal provided by the driving control circuit D-6 is V6, the voltage value of the anti-peeping control signal provided by the driving control circuit D-7 is V7, the voltage value of the anti-peeping control signal provided by the driving control circuit D-8 is V8, the voltage value of the anti-peeping control signal provided by the driving control circuit D-9 is V9, the voltage value of the anti-peeping control signal provided by the driving control circuit D-10 is V10, the voltage value of the anti-peeping control signal provided by the driving control circuit D-11 is V11, the voltage value of the anti-peeping control signal provided by the driving control circuit D-12 is V12, and the voltage value of the anti-peeping control signal provided by the driving control circuit D- The voltage value of the anti-peeping control signal provided by the driving control circuit D-13 is V13, the voltage value of the anti-peeping control signal provided by the driving control circuit D-14 is V14, and the voltage value of the anti-peeping control signal provided by the driving control circuit D-15 is V15; the specific values ​​of V1, V2, V3, V4, V5, V6, V7, V8, V9, V10, V11, V12, V13, V14, and V15 can be set according to the needs, and the specific values ​​of V1, V2, V3, V4, V5, V 6. The specific values ​​of V7, V8, V9, V10, V11, V12, V13, V14, and V15 can independently control the anti-peeping angle of each intersection area (i.e., A101-A1015, B101-B1015, C101-C1015...H101-H1015, I101-I1015) in each row (A1-I1), that is, the viewing angle of each intersection area in the touch anti-peeping panel can be independently controlled; thereby achieving the anti-peeping effect on four sides.

[0128] Exemplarily, the voltage values ​​of the touch detection signals provided by the driving control circuits D-1 to D-15 may be the same, and the specific values ​​may be set according to requirements.

[0129] Based on the same inventive concept, an embodiment of the present invention further provides a display device, including the display module provided by the embodiment of the present invention. The principle of solving the problem by the display device is similar to that of the display module, so the implementation of the display device can refer to the implementation of the display module, and the repeated parts will not be repeated here.

[0130] In specific implementation, in the embodiment of the present invention, the display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, etc. Other essential components of the display device are well understood by those skilled in the art, and are not described in detail here, nor should they be used as limitations on the present invention.

[0131] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0132] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A display module, characterized in that: include: Display panel; A touch anti-peep panel, located on the light-emitting side of the display panel; The touch anti-peeping panel comprises: a first substrate and a second substrate arranged opposite to each other; a liquid crystal layer located between the first substrate and the second substrate; a first anti-peeping electrode layer located between the liquid crystal layer and the first substrate; and a second anti-peeping electrode layer located between the liquid crystal layer and the second substrate. The second anti-peeping electrode layer includes a plurality of anti-peeping electrodes arranged in an array; The anti-peeping electrodes are reused as touch electrodes; A plurality of driving control circuits, a row of the anti-peeping electrodes is electrically connected to the same driving control circuit, and the driving control circuit is configured to provide an anti-peeping control signal and a touch detection signal to the anti-peeping electrodes.

2. The display module according to claim 1, wherein: The driving control circuit includes: a signal loading circuit, a touch detection circuit and a switch control circuit; The signal loading circuit and the touch detection circuit are respectively electrically connected to the same anti-peeping electrode through the switch control circuit, and the switch control circuit is configured to control the anti-peeping electrode to be connected to the signal loading circuit or to control the anti-peeping electrode to be connected to the touch detection circuit; When the anti-peeping electrode is connected to the signal loading circuit, the signal loading circuit is configured to load the anti-peeping control signal of the anti-peeping control signal end to the anti-peeping electrode, and load the touch detection signal of the touch detection signal end to the anti-peeping electrode; When the anti-peeping electrode is conductively connected to the touch detection circuit, the touch detection circuit is configured to determine a touch position according to a change of the touch detection signal on the anti-peeping electrode.

3. The display module according to claim 2, wherein: The signal loading module includes: an inverting amplifier, a first resistor, a second resistor and a first capacitor; The first end of the inverting amplifier is electrically connected to the switch control circuit, the second end of the inverting amplifier is electrically connected to the first end of the first resistor, and the third end of the inverting amplifier is electrically connected to the anti-peeping control signal end; The second end of the first resistor is electrically connected to the first electrode of the first capacitor; The second electrode of the first capacitor is electrically connected to the touch detection signal terminal; A first end of the second resistor is electrically connected to a first end of the inverting amplifier, and a second end of the second resistor is electrically connected to a second end of the inverting amplifier.

4. The display module according to claim 2, wherein: The switch control circuit includes: a selection control switch, a third resistor and a second capacitor; The first end of the selection control switch is electrically connected to the first end of the third resistor, the second end of the selection control switch is electrically connected to the signal loading circuit, and the third end of the selection control switch is electrically connected to the touch detection circuit; The second end of the third resistor is electrically connected to the anti-peeping electrode; The first electrode of the second capacitor is electrically connected to the anti-peeping electrode, and the second electrode of the second capacitor is grounded.

5. The display module according to any one of claims 1 to 4, characterized in that: The touch anti-peep panel further includes: a first conductive layer and a first insulating layer; The first conductive layer is located between the second substrate and the first insulating layer; The first insulating layer is located between the second anti-peeping electrode layer and the first conductive layer; The first conductive layer includes a plurality of first signal lines, and one of the anti-peeping electrodes is electrically connected to the drive control circuit via one of the first signal lines.

6. The display module according to claim 5, characterized in that: Also includes: A driving circuit board, wherein the plurality of driving control circuits are arranged on the driving circuit board and are electrically connected to the first signal line in the first conductive layer in the touch anti-peeping panel through the second signal line.

7. A display device, characterized in that: Comprising a display module as described in any one of claims 1-6.

8. A method for driving a display module according to any one of claims 1 to 6, characterized in that: include: Drive the display panel to display images, and drive the touch anti-peep panel to work; The driving of the touch anti-peep panel to work includes: In at least one driving cycle, a common electrode voltage is applied to the first anti-peeping electrode layer, and the driving control circuit loads a touch detection signal and an anti-peeping control signal to the anti-peeping electrode in a time-sharing manner; the touch detection signal is a pulse signal, and the anti-peeping control signal is a fixed level signal.

9. The driving method according to claim 8, characterized in that: The driving cycle includes a first stage and a second stage, the touch detection signal includes a first touch detection signal and a second touch detection signal; the fixed level signal includes a first level signal and a second level signal; In the first stage, a common electrode voltage is applied to the first anti-peeping electrode layer, and the driving control circuit applies a first touch detection signal and a first level signal to the anti-peeping electrode in a time-sharing manner; In the second stage, a common electrode voltage is applied to the first anti-peeping electrode layer, and the driving control circuit applies a second touch detection signal and a second level signal to the anti-peeping electrode in a time-sharing manner.

10. The driving method according to claim 9, characterized in that: In the first stage and the second stage, the signal loading circuit loads the touch detection signal of the touch detection signal end to the anti-peeping electrode, and the touch detection circuit determines the touch position according to the change of the touch detection signal on the anti-peeping electrode; the signal loading circuit loads the anti-peeping control signal of the anti-peeping control signal end to the anti-peeping electrode.

Images