TW201447701A - Liquid crystal display with touch function, electronic apparatus thereof and fabricating method thereof - Google Patents

Abstract

Liquid crystal display (LCD) with touch function, electronic apparatus thereof and fabricating method thereof is provided and related to the field of electronic apparatuses. In embodiments, the common electrode in the display electrode of the LCD with touch function, wherein the common electrode includes a first sensing electrode and a second sensing electrode, is connected to a touch detection unit. The touch detection unit and the display control unit are working rotationally. Thus, the structure of the LCD with touch function can be simplified because the electrodes for detecting the touch of the LCD with touch function can share the common electrode without further assembling a touch sensing layer to carry the electrodes for detecting the touch of the LCD with touch function. Moreover, since the touch sensing layer is omitted, the LCD with touch function has a better optical transmittance. Meanwhile, since the touch detection unit and the display control unit are working rotationally, the sensing of touching and the control of displaying will not affect with each other.

Description

Liquid crystal display screen with touch function, manufacturing method thereof and electronic device

The present invention relates to the field of electronic device technology, and particularly relates to a liquid crystal display screen (hereinafter referred to as a touch display screen) having a touch function, a manufacturing method thereof and an electronic device.

With the development of the touch display technology, the capacitive touch display screen is more and more widely used. The touch display screen of the existing electronic device generally includes a display layer and a touch sensing layer, and the display layer includes a liquid crystal for realizing The displayed electrodes, such as a pixel electrode, a common electrode, and a Thin Film Transistor (TFT) array, include an electrode for detecting a touch of the touch display screen in the touch sensing layer. In general, the touch sensing layer and the display layer are stacked from the upper side of the touch display screen (the direction of the outer surface of the electronic device) to the lower side, thereby implementing the touch display function.

The embodiment of the invention provides a liquid crystal display screen with a touch function, a manufacturing method thereof and an electronic device, and simplifies the structure of a liquid crystal display screen with a touch function.

Embodiments of the present invention provide a liquid crystal display screen having a touch function, including: a cover plate stacked from top to bottom, a color filter, a common electrode in a display electrode, a liquid crystal layer, other display electrodes, a substrate, and a backlight. The touch display screen further includes a touch detection unit and a display control unit; wherein the common electrode includes a first sensing electrode and a second sensing electrode; the first sensing electrode and the second sensing electrode are connected to the touch detecting unit The touch detection unit is configured to detect a self-capacitance formed between the first sensing electrode and the second sensing electrode or a mutual capacitance formed between the first sensing electrode and the first sensing electrode, and according to the detected self-capacitance or mutual The capacitor determines a touch to the touch display screen; the common electrode and other display electrodes are connected to a display control unit, and the display control unit is configured to control the first sensing electrode, the second sensing electrode, and other display electrodes, To perform liquid crystal display; the display control unit and the touch detection unit operate in a time-sharing manner.

An embodiment of the present invention provides an electronic device including a liquid crystal display screen having a touch function, and the liquid crystal display screen having a touch function includes: a cover plate stacked on top to bottom, a color filter, and a display electrode. a common electrode, a liquid crystal layer, another display electrode, a substrate, and a backlight, the touch display screen further includes a touch detection unit and a display control unit; wherein the common electrode includes a first sensing electrode and a second sensing electrode; The first sensing electrode and the second sensing electrode are connected to the touch detecting unit, and the touch detecting unit is configured to detect a self-capacitance or a first sensing electrode and a first sensing formed between the first sensing electrode and the second sensing electrode. a mutual capacitance formed between the electrodes, and determining a touch to the touch display screen according to the detected self-capacitance or mutual capacitance; the common electrode and other display electrodes are connected to the display control unit, and the display control unit is used Controlling the first sensing electrode, the second sensing electrode, and other display electrodes to perform liquid crystal display; the display control unit and the touch detecting unit operate in a time-sharing manner.

The embodiment of the invention provides a method for manufacturing a liquid crystal display screen with a touch function, wherein the liquid crystal display screen with touch function includes: a cover plate stacked on top to bottom, a color filter, and a display electrode. a common electrode, a liquid crystal layer, another display electrode, a substrate, and a backlight, the touch display screen further includes a touch detecting unit and a display control unit; wherein the common electrode includes a first sensing electrode and a second sensing electrode; The first sensing electrode and the second sensing electrode are connected to the touch detecting unit, and the touch detecting unit is configured to detect a self-capacitance or a first sensing electrode and a first sensing formed between the first sensing electrode and the second sensing electrode. a mutual capacitance formed between the electrodes, and determining a touch to the touch display screen according to the detected self-capacitance or mutual capacitance; the common electrode and other display electrodes are connected to the display control unit, the display control unit For controlling the first sense The electrode, the second sensing electrode and the other display electrodes are used for liquid crystal display; the display control unit and the touch detection unit operate in a time-sharing manner; and the method comprises: displaying the liquid crystal display with the touch function The inner surface of the color filter in the curtain is vacuum-sputtered to form an electrode, and the electrode material is etched to form a common material including the first sensing electrode and the second sensing electrode.

In the embodiment of the present invention, the common electrode in the display electrode of the liquid crystal display screen with touch function includes a first sensing electrode and a second sensing electrode connected to the touch detecting unit, and the touch detecting unit and the display control unit perform time sharing jobs. In this way, the electrodes for detecting the touch of the touch display screen in the touch display screen can share the common electrode, and the touch sensing layer is additionally disposed to carry the electrode for detecting the touch of the touch display screen, thereby simplifying the touch display. The structure of the curtain; and because of the lack of the touch sensing layer, the touch display screen has better light transmittance; meanwhile, since the touch detection unit and the display control unit work in a time-sharing, the detection of the touch and the control for the display Will not affect each other.

10‧‧‧ Cover

11‧‧‧Color filters

12‧‧‧Common electrode

13‧‧‧Box glue

130‧‧‧ spacer particles

131‧‧‧liquid crystal molecules

14‧‧‧Other display electrodes

15‧‧‧Substrate

16‧‧‧ Backlight

17‧‧‧Touch detection unit

18‧‧‧Display control unit

30‧‧‧Optical adhesive

31‧‧‧Upper Polarizer

32‧‧‧low polarizer

120‧‧‧first sensing electrode

121‧‧‧Second sensing electrode

124‧‧‧Drive electrode

125‧‧‧ receiving electrode

33‧‧‧Insulation

34‧‧‧Substrate

110‧‧‧Color filter area

111‧‧‧Black matrix

123‧‧‧Conductor Grid

20‧‧‧ Cover

21‧‧‧Color filters

210‧‧‧Black matrix

211‧‧‧Color filter area

22‧‧‧Common electrode

23‧‧‧Box glue

230‧‧‧ liquid crystal molecules

231‧‧‧ spacer particles

24‧‧‧Other display electrodes

25‧‧‧Substrate

26‧‧‧ Backlight

27‧‧‧Touch detection unit

28‧‧‧Display Control Unit

120-1~n‧‧‧first sensing electrode

121-1~n‧‧‧Second sensing electrode

124-1~n‧‧‧ drive electrode

125-1~n‧‧‧ receiving electrode

1 is a schematic structural diagram of a liquid crystal display screen with a touch function according to Embodiment 1 of the present invention; FIG. 2 is a pattern of a common electrode layer in a touch display screen according to an embodiment of the present invention; FIG. 3 is a schematic diagram of forming a capacitor between the first sensing electrode and the second sensing electrode when the touch detecting unit is operated in the touch display screen according to the embodiment of the present invention; FIG. 4 is another embodiment of the present invention. The pattern of the common electrode layer in the touch display screen; FIG. 5 is a schematic diagram showing another capacitance formed between the first sensing electrode and the second sensing electrode when the touch detecting unit is operated in the touch display screen provided by the embodiment of the invention; 6 is a cross-sectional view showing a part of a structure of a touch display screen according to an embodiment of the present invention; and FIG. 7 is a plan view showing a color filter and a conductor grid in the touch display screen according to the embodiment of the present invention; A schematic diagram of the relationship between the common electrode and the conductor grid in the touch display screen of the embodiment of the invention; FIG. 9 is a flow chart of the liquid crystal display screen with the touch function provided by the second embodiment of the present invention; A schematic structural diagram of a liquid crystal display screen with a touch function provided by the fourth embodiment of the invention.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. Example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1 of the present invention

Providing a liquid crystal display screen with touch function (hereinafter referred to as a touch display screen), mainly a liquid crystal display screen such as In-cell, a common electrode and other display electrodes in a display electrode of this type of liquid crystal display screen (For example, the pixel electrode and the TFT, etc.) are not in the same layer and are separated by the liquid crystal. The touch display screen is generally used in an electronic device. The specific structure is shown in FIG. 1 and includes: a cover plate stacked from top to bottom. 10, a color filter 11, a common electrode 12 in the display electrode, a liquid crystal layer, other display electrodes 14, a substrate 15 and a backlight 16, the touch display screen further comprising a touch detecting unit 17 and a display control unit 18, wherein the electronic device The direction of the outer surface is upper, and the direction of the inner surface of the electronic device is lower. Specifically, in order to convert the circularly polarized light into linearly polarized light and realize liquid crystal display, it is necessary to separately provide a polarizer on the color filter 11 and below the substrate 15. Specifically, an upper polarizer is disposed between the cover 10 and the color filter 11, and the upper polarizer can be pasted on the inner surface of the cover 10 by a transparent optical adhesive; between the backlight 16 and the substrate 15. There is set lower polarizer.

The color filter 11 can display a color picture on the touch display screen, mainly including red, blue and green filter areas. The liquid crystal layer includes liquid crystal molecules 130 and spacer particles 131, and the liquid crystal molecules 130 and the spacer particles 131 may be disposed on the common electrode 12 in the display electrode through the sealant 13 And the other display electrodes 14, wherein the spacer particles 131 can support the color filter 11, prevent the color filter 11 from being deformed, and provide a certain liquid crystal rotation space, and the sealant 13 is used for the color filter 11 and The substrates 15 are bonded together to form a sealed space. The common electrode 12 and other display electrodes 14 are electrodes for realizing liquid crystal display. The common electrode 12 includes a first sensing electrode 120 and a second sensing electrode 121. The common electrode 12 and other display electrodes 14 may be indium tin (Indium Tin). Oxides, ITO), has good transparency and electrical conductivity.

The first sensing electrode 120 and the second sensing electrode 121 are both connected to the touch detecting unit 17 for detecting the self-capacitance or the first sensing electrode formed between the first sensing electrode 120 and the first sensing electrode 121. A mutual capacitance formed between the 120 and the first sensing electrode 121, and determining a touch to the touch display screen according to the detected self-capacitance or mutual capacitance. The common electrode 12 and other display electrodes 14 are both connected to a display control unit 18 for controlling the first sensing electrode 120, the second sensing electrode 121 and other display electrodes 14 for liquid crystal display. In this embodiment, the touch detection unit 17 and the display control unit 18 can work in a time-sharing manner according to a preset setting; and in another specific embodiment, the touch detection unit 17 and the display control need to be respectively connected through another control unit. The unit 18 controls the touch detecting unit 17 and the display control unit 18 to perform time sharing. For example, when the display control unit 18 is in control display, the touch detection unit 17 stops detecting the detection of the touch display touch.

In this embodiment, a pixel electrode, a signal electrode, a TFT, and the like may be included in the other display electrodes 14, wherein the pixel electrodes are connected through the TFT. Connect to the signal electrode. When the display control unit 18 is in the working state, the display control unit 18 can control the first sensing electrode 120 and the second sensing electrode 121 in the common electrode 12 to be equalized, so that both electrodes serve as one electrode of the liquid crystal display, and The TFT is controlled to be disconnected. At this time, the TFT is equivalent to connecting two opposite diodes, and the current of the signal electrode cannot flow to the drain through the TFT, and since the pixel electrode is connected to the drain of the TFT, the current of the signal electrode It is also impossible to flow to the pixel electrode, so that no electric field can be established between the pixel electrode in the other display electrode 14 and the common electrode 12, so that the light of the backlight 16 passes through the lower polarizer to reach the other display electrode 14 and the common electrode 12 layer, and cannot When the upper polarizer is reached, the touch display screen is black; the display control unit 18 can also control the TFT to open, so that the current of the signal electrode flows to the drain through the TFT, and the pixel electrode and the common electrode in the other display electrodes 14 at this time. When an electric field is established between 12, the liquid crystal molecules 130 in the liquid crystal layer above the display electrode 14 are rotated by the electric field, so that the light of the backlight 16 passes through the lower polarizer. Back to the other display electrode layer 14, by the rotation of the liquid crystal molecules eventually reaches through the upper polarizer plate 10130. The display control unit 18 controls the display electrodes, so that when the liquid crystal display is realized, in addition to the above-described operation mode, there may be other operation modes, which are not described herein.

When the touch detection unit 17 is in the working state, the touch detection unit 17 can control the voltages of the first sensing electrode 120 and the second sensing electrode 121 in the common electrode 12 to be unequal, such that the first sensing electrode 120 and the second sensing electrode 121 respectively As one of the self-capacitance electrodes, or as one of the mutual capacitances. In the specific implementation, at the common electrode 12 The first sensing electrode 120 and the second sensing electrode 121 can be in the following two manners. Accordingly, the touch detecting unit 17 can also detect the touch screen touch of the touch screen in two ways, specifically:

(1) As shown in FIG. 2, the entire surface common electrode 12 may be divided into a plurality of pairs of different shaped blocks, each pair of blocks including a first sensing electrode 120 and a second sensing electrode 121, the first The sensing electrode 120 and the second sensing electrode 121 may have any shape. For example, in FIG. 2, the first sensing electrode 120 is a plurality of triangles (portions filled with left oblique lines in FIG. 2) connected to one side, and the second sensing electrode 121 is also a plurality of triangles (portions filled with right-hand oblique lines in FIG. 2) connected to one end, and the like, and the first sensing electrodes 120 and the second sensing electrodes 121 are not connected, and the unconnected portions are disposed to each other. That is, the unconnected portion of the triangle included in one of the sensing electrodes is disposed in the gap portion of the other sensing electrode to save the occupied area. The specific sensing mode shown in FIG. 2 is the first sensing electrode 120 and the first The two sensing electrodes 121 may have other shapes.

The touch detection unit 17 can provide a signal source for the two sensing electrodes, that is, the first sensing electrode 120 and the second sensing electrode 121, in each pair of blocks, so that a self-capacitance is formed between the first sensing electrode 120 and the second sensing electrode 121. As shown in FIG. 3, when no touch body touches the touch display screen, the touch detection unit 17 detects that the capacitance value between the first sensing electrode 120 and the second sensing electrode 121 is Cp; if the touch body touches the touch When the display screen is controlled, the capacitance Cf existing between the touch body and each sensing electrode is superimposed on the original capacitance between the first sensing electrode 120 and the second sensing electrode 121, and then touch The detecting unit 17 detects that the capacitance value between the first sensing electrode 120 and the second sensing electrode 121 is Cp'=Cp//(Cf+Cf). The visible touch detection unit 17 determines the presence or absence of the touch body touch by detecting the capacitance value of the capacitance formed between the first sensing electrode 120 and the second sensing electrode 121, and calculates the position touched by the touch body according to the corresponding algorithm.

(2) As shown in FIG. 4, the entire common electrode 12 may be divided into a plurality of first sensing electrodes 120 and a plurality of second sensing electrodes 121, and the first sensing electrodes 120 and the second sensing electrodes 121 may be any The shape, for example, the first sensing electrode 120 in FIG. 4 is a plurality of strips (portions filled with left oblique lines in FIG. 4) connected at one end, and the second sensing electrodes 121 are also a plurality of strips connected at one end (FIG. 4) a portion filled with a right oblique line, an electrode or the like, and the first sensing electrode 120 and the second sensing electrode 121 are not connected to each other, and the unconnected portions are appropriately disposed to each other, that is, a strip electrode included in one of the sensing electrodes The unconnected portion is disposed in the gap portion of the other sensing electrode to save the occupied area, and only one of the specific implementations is shown in FIG.

The touch detection unit 17 can provide a signal source for one of the first sensing electrode 120 and the second sensing electrode 121, that is, as the driving electrode 124-1~n, and the other sensing electrode as the receiving electrode 125-1~ of the receiving signal. n, a mutual capacitance is formed between the first sensing electrode 120 and the second sensing electrode 121, wherein the first sensing electrode 120 can serve as the receiving electrode 125, and the second sensing electrode 121 can serve as the driving electrode 124. As shown in FIG. 5, when no touch body touches the touch display screen, the touch detecting unit 17 detects the mutual electric power formed between the driving electrode 124 and the receiving electrode 125. The capacitance value of the capacitance is Cm1; when the touch body touches the touch display screen, a capacitance Cf is formed between the touch body and the driving electrode, so that part of the signal of the driving electrode is absorbed by the touch body, and the touch detecting unit 17 detects The capacitance value of the mutual capacitance formed between the driving electrode and the receiving electrode becomes small as Cm2. The visible touch detecting unit 17 determines whether there is a touch body touch by detecting a mutual capacitance value formed between the driving electrode and the receiving electrode, and calculates a position touched by the touch body according to the corresponding algorithm.

It can be seen that, in the embodiment of the present invention, the first sensing electrode and the second sensing electrode included in the common electrode of the display electrode of the liquid crystal display screen having the touch function are connected to the touch detecting unit, and the touch detecting unit and the display control unit are divided into Work at the time. The electrode for detecting the touch of the touch display screen in the touch display screen can multiplex the common electrode without additionally providing a touch sensing layer to carry the electrode for detecting the touch of the touch display screen, which simplifies the touch. Controlling the structure of the display screen; and because the touch sensing layer is lacking, the touch display screen has better light transmittance; meanwhile, since the touch detection unit and the display control unit work in a time-sharing, the detection of the touch and the display are performed. The controls do not affect each other.

It should be noted that the common electrode 12 in the touch display screen of the embodiment of the present invention is an electrode divided into a plurality of blocks that are not connected to each other, so that the impedance of the electrodes of the single block is relatively large. As the touch detection unit 17 and the display control unit 18 operate in a time-sharing manner, the function of the common electrode 12 also changes in a time-division manner. When the touch detection unit 17 is in an active state, the first sensing electrode 120 and the first electrode in the common electrode 12 The two sensing electrodes 121 are continuously charged and discharged, if the process of switching to the display control unit 18 is switched in the process. When the state is high, the electric charge on the common electrode 12 may not be discharged in time due to the large impedance, so that grayscale unevenness may occur.

Figure 6 is a cross-sectional view of a portion of the structure of the touch display screen, and Figure 7 is a plan view of the color filter and the conductor grid in the touch display screen. In order to eliminate the uneven gray scale, it is necessary to A conductor mesh 123 is disposed under the common electrode 12 to have better conductivity and conduct current, which reduces gray scale unevenness due to the large impedance of the common electrode 12. The envelope of the conductor grid 123 is identical to the outer shape of the first sensing electrode 120 and the second sensing electrode 121 in the common electrode 12, that is, as shown in FIG. 8, the first sensing electrode 120 and the second sensing electrode in the common electrode 12 layer. There is a conductor grid 123 at a corresponding position below 121, and no conductor grid 123 at a position below the gap portion of the common electrode layer 12. In general, the color filter 11 of the touch display screen includes color filter regions 110 separated by a black matrix 111, such as red, green, and blue filter regions, so as to prevent touch display. The color displayed on the screen interferes. The conductor grid 123 disposed under the common electrode 12 needs to be at a position corresponding to the black matrix 111, so that the conductor grid 123 is blocked by the black matrix 111, and the user sees from above the touch display screen. Not enough. The conductor mesh 123 may be in the form of a grid and may be a grid of a conductive material such as metal or graphene having good electrical conductivity.

Embodiment 2 of the present invention

A method for fabricating a liquid crystal display screen with a touch function as described in the first embodiment is also provided. The flowchart is as shown in FIG. 9 and includes:

1. Vacuum sputtering on the entire surface of the color filter 11 A pole material such as ITO or the like forms a common electrode 12. Alternatively, before the ITO is sputtered on the inner surface of the color filter 11, the insulating flat layer or the insulating flat layer may be vacuum-sputtered on the entire inner surface of the color filter 11, and then the ITO may be sputtered.

2. Etching an electrode material such as ITO to form a common electrode 12 including the first sensing electrode 120 and the second sensing electrode 121, and the patterns of the first sensing electrode 120 and the second sensing electrode 121 formed by etching are as in the first embodiment. The description will not be repeated here.

In order to eliminate the phenomenon of gray scale unevenness, it is necessary to provide a conductor mesh under the common electrode 12. In a specific embodiment, step 3, that is, the common electrode 12 formed in step 1 is required before step 2 above. The conductor is vacuum sputtered over the entire surface and the conductor is etched to form a conductor grid 123. And when etching the conductor and etching the electrode material, the etching may be performed in accordance with the etching so that the envelope of the conductor grid 123 coincides with the outer shape of the first sensing electrode 120 and the second sensing electrode 121.

Further, in order to protect the common electrode 12 layer, after performing the above step 2, the protective layer or the protective layer may be vacuum-sputtered over the entire surface.

Embodiment 3 of the present invention

An electronic device, including a liquid crystal display screen having a touch function, and the structure of the liquid crystal display screen having the touch function is as described in the first embodiment, and details are not described herein.

Embodiment 4 of the present invention

Also provides another liquid crystal display with touch function ( Referring to the touch display screen, it is mainly a liquid crystal display screen such as In-cell, which is generally used in electronic devices. Referring to FIG. 10, the touch display screen in this embodiment includes: a cover plate 20 stacked from top to bottom, a color filter 21, a common electrode 22 in the display electrode, a liquid crystal layer, and other display electrodes 24, The substrate 25 and the backlight 26 further include a touch detecting unit 27 and a display control unit 28. In order to convert the circularly polarized light into linearly polarized light and realize liquid crystal display, it is necessary to provide an upper polarizer between the cover 20 and the color filter 21, and a lower polarizer between the backlight 26 and the substrate 25.

The color filter 21 can cause a color picture to be displayed on the touch display screen, including a color filter region 211 separated by a black matrix 210, mainly including red, blue, and green filter regions. The liquid crystal layer includes liquid crystal molecules 230 and spacer particles 231. The liquid crystal molecules 230 and the spacer particles 231 may be disposed between the common electrode 22 and the other display electrodes 24 in the display electrode through the sealant 23, wherein the spacer particles 231 may support The color filter 21 prevents the color filter 21 from being deformed and provides a certain liquid crystal rotation space.

The common electrode 22 includes a first sensing electrode and a second sensing electrode, and the common electrode 22 in the touch display screen of the embodiment may not divide the common electrode of the whole surface into different sensing electrodes, but may only be in touch. A conductor mesh is disposed at a position below the black matrix 210 on the color filter 21 in the display, and serves as the common electrode 22 through the conductor mesh. The patterns of the first and second sensing electrodes are similar to those of the first sensing electrode 120 and the second sensing electrode 121 described in the first embodiment, and are not described herein. Thus relative to the embodiment In the touch display screen of one, the conductor mesh which prevents gray scale unevenness is used as an electrode for realizing liquid crystal display, and an electrode for performing touch detection, instead of a single common electrode layer for carrying these electrodes, further simplifies The structure of the touch display screen.

The first sensing electrode and the second sensing electrode are both connected to the touch detecting unit 27, and the touch detecting unit 27 is configured to detect the self-capacitance or the first sensing electrode 120 formed between the first sensing electrode 120 and the first sensing electrode 121. The mutual capacitance formed between the first sensing electrodes 121 determines the touch to the touch display screen according to the detected self-capacitance or mutual capacitance. The common electrode 22 and other display electrodes 24 are both connected to a display control unit 28 for controlling the first, second, and other display electrodes 24 for liquid crystal display. In the present embodiment, the touch detection unit 27 and the display control unit 28 can operate in a time-division manner according to preset settings.

In the process of manufacturing the touch display screen of the embodiment, a conductor material such as metal or graphene may be vacuum-sputtered on the entire surface of the inner surface of the color filter 21. Optionally, before the inner surface of the color filter 21 is sputter coated with the conductor material, the inner surface of the color filter 21 may be vacuum-sputtered with an insulating flat layer or an insulating flat layer, and then the conductor material may be sputtered. The conductor material is then timed such that there is a conductor grid at a position corresponding to the black matrix 210 in the color filter 21, and these conductor grids include the first sensing electrode and the second sensing electrode, thus forming the common electrode 22.

Further, in order to protect the common electrode 22 layer, after the common electrode 22 is formed at the time, the protective layer may be vacuum-sputtered over the entire surface or Apply a protective layer.

The embodiment of the present invention further provides an electronic device, which mainly includes the touch display screen as described in the fourth embodiment, and details are not described herein.

The liquid crystal display screen with the touch function and the manufacturing method thereof and the electronic device provided by the embodiments of the present invention are described in detail. The principles and embodiments of the present invention are described in the following examples. The description is only for helping to understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in specific embodiments and application scopes. The contents of this specification are not to be construed as limiting the invention.

10‧‧‧ Cover

11‧‧‧Color filters

12‧‧‧Common electrode

13‧‧‧Box glue

130‧‧‧ spacer particles

131‧‧‧liquid crystal molecules

14‧‧‧Other display electrodes

15‧‧‧Substrate

16‧‧‧ Backlight

17‧‧‧Touch detection unit

18‧‧‧Display control unit

30‧‧‧Optical adhesive

31‧‧‧Upper Polarizer

32‧‧‧low polarizer

Claims (9)

A liquid crystal display screen with touch function includes: a cover plate stacked from top to bottom, a color filter, a common electrode in the display electrode, a liquid crystal layer, other display electrodes, a substrate and a backlight, and the touch display The screen further includes a touch detecting unit and a display control unit; wherein the common electrode includes a first sensing electrode and a second sensing electrode; the first sensing electrode and the second sensing electrode are connected to the touch detecting unit, and the touch detecting a unit, configured to detect a self-capacitance formed between the first sensing electrode and the second sensing electrode or a mutual capacitance formed between the first sensing electrode and the first sensing electrode, and determine the self-capacitance or mutual capacitance according to the detected self-capacitance or mutual capacitance Touching the display screen; the common electrode and other display electrodes are connected to the display control unit, and the display control unit is configured to control the first sensing electrode, the second sensing electrode, and other display electrodes to Performing liquid crystal display; the display control unit and the touch detection unit operate in a time-sharing manner. In the liquid crystal display screen with touch function as described in claim 1, the first sensing electrode and the second sensing electrode are each a plurality of triangular electrodes connected to one side, and the first sensing electrode and the second sensing electrode are not connected. And the unconnected parts are arranged in an adapted manner; The liquid crystal display screen with touch function as described in claim 1, wherein the first sensing electrode and the second sensing electrode are a plurality of strip electrodes connected at one end, and the first sensing electrode and the second sensing electrode are not Connected and not The connected parts are arranged in an adapted manner. The liquid crystal display screen with touch function according to claim 1 or 2, comprising a color filter region separated by a black matrix on the color filter; below the common electrode, and at the The position corresponding to the black matrix is further provided with a conductor grid, and the envelope of the conductor grid is consistent with the outer shape of the first sensing electrode and the second sensing electrode in the common electrode. The liquid crystal display screen with touch function according to claim 3, wherein the conductor mesh is a mesh of metal or graphene material. The liquid crystal display screen with touch function according to claim 1 or 2, comprising a color filter region separated by a black matrix on the color filter; wherein the common electrode is disposed on the black matrix The conductor grid below. An electronic device comprising a liquid crystal display screen having a touch function, wherein the liquid crystal display screen having a touch function is a liquid crystal display screen having a touch function according to any one of claims 1 to 5. A liquid crystal display screen with a touch function, wherein the liquid crystal display screen with a touch function, such as the liquid crystal display screen with touch function according to claim 1 or 2, includes: And electrostatically sputtering the electrode material on the inner surface of the color filter in the liquid crystal display screen with the touch function to form a common electrode; and etching the electrode material to form the first sensing electrode and the second sensing electrode. Public material. The manufacturing method of claim 8, the liquid crystal display screen with touch function, such as the liquid crystal display screen with touch function described in claims 3 to 4, the former method further comprising: The conductor is vacuum sputtered over the entire surface of the electrode and the conductor is etched to form a conductor grid.