CN211554910U - Touch display screen and electronic equipment - Google Patents

Abstract

The application discloses touch-control display screen and electronic equipment includes: a panel; the display module is arranged on one side of the panel and is used for displaying images on the side facing the panel; and the touch sensor is arranged on one side of the display module group, which deviates from the panel. This application is through changing the relative position relation between the touch sensor in the touch-control display screen and the display module assembly, locate the one side that deviates from the panel of display module assembly with touch sensor, because display module assembly is in the one side display image towards the panel, so touch sensor can not cause any influence to the display effect of display surface, has promoted touch-control display screen's definition to touch sensor need not set up to the light-permeable, has reduced the overall cost.

Description

Touch display screen and electronic equipment

Technical Field

The application relates to the technical field of touch control and display, in particular to a touch control display screen and electronic equipment.

Background

The touch display screen is the simplest, convenient and natural man-machine interaction mode at present, and is widely applied to daily life and production and processing. Touch-control display screen mainly comprises panel, touch sensor and display module assembly, and among the current touch-control display screen, generally establish touch sensor between panel and display module assembly to obtain better touch-control effect, but following problem exists in such structure: the touch sensor can affect the light transmittance to a certain extent, so that the color display of the display module is affected, and the display definition of the display module is reduced; in order to avoid affecting the normal operation of the display module, the touch sensor must be transparent, which is relatively high in cost.

SUMMERY OF THE UTILITY MODEL

The application provides a touch display screen and electronic equipment, can promote the definition of touch display screen to the overall cost has been reduced.

According to an aspect of the present application, there is provided a touch display screen, including:

a panel;

the display module is arranged on one side of the panel and is used for displaying content on one side facing the panel;

and the touch sensor is arranged on one side of the display module group, which deviates from the panel. The touch sensor in the design can not cause any influence on the display effect of the display surface, the definition of the touch display screen is improved, the touch sensor does not need to be set to be light-permeable, and the overall cost is reduced.

According to some embodiments, the touch sensor is non-transparent. The design widens the selection range of the touch sensor, and simultaneously, the application range of the touch display screen is enlarged, and the cost of the touch sensor is reduced.

According to some embodiments, further comprising:

and the polaroid is arranged between the panel and the display module. In the design, the touch display screen can have a desired display effect by changing the optical characteristics of the polarizer.

According to some embodiments, the polarizer has a thickness dimension between 0.01mm and 0.10 mm. The design can reduce the distance between the touch sensor and the panel as much as possible, so that the touch sensor can capture and record physical contact on the panel with higher precision, and the touch sensitivity of the touch display screen is improved.

According to some embodiments, a surface of the panel facing the display module is a first surface, and orthographic projections of the display module and the touch sensor on the first surface are both located in the first surface. This design can make the panel cover display module assembly and touch sensor completely, prevents that external force from assaulting to cause destruction to display module assembly and touch sensor to thereby prevent simultaneously that particles such as external dust, impurity from getting into wherein and influencing their normal use, promote touch-sensitive display screen's life.

According to some embodiments, the touch sensor is a capacitive touch sensor. The design can well sense slight and quick touch, so that the touch of the touch display screen is more sensitive, correction is not needed, and the touch display screen is convenient to use and long in service life.

According to some embodiments, further comprising: and the shielding layer is used for shielding the interference to the touch sensor and is arranged on one side of the touch sensor departing from the display module. The design can shield signal interference caused by the outside world to the touch sensor, and the touch sensitivity of the touch display screen is improved.

According to some embodiments, the surface of the display module, which faces away from the panel, is provided with optical cement, and the touch sensor is connected with the display module through the optical cement. The design can improve the integral tightness degree between the display module and the touch sensor, and the display module and the touch sensor are prevented from falling off.

According to some embodiments, the touch sensor is fabricated using a flexible circuit board. The design can enable the touch sensor to have the advantages of high wiring density, light weight, thin thickness, good bending performance and the like.

According to a second aspect of the present application, there is also provided an electronic device, comprising:

the touch display screen is provided. The electronic equipment of this design is in the equipment process, and touch sensor can not cause any influence to the display effect of display surface, has promoted touch display screen's definition to touch sensor need not set up to the light-permeable, has reduced the overall cost.

The application provides a touch display screen and electronic equipment, this touch display screen includes panel, display module assembly and touch sensor, and touch sensor locates the one side that deviates from the panel of display module assembly. This application is through changing the relative position relation between the touch sensor in the touch-control display screen and the display module assembly, locate the one side that deviates from the panel of display module assembly with touch sensor, because display module assembly shows content in one side towards the panel, so touch sensor can not cause any influence to the display effect of display surface, has promoted touch-control display screen's definition to touch sensor need not set up to the light-permeable, has reduced the overall cost.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic cross-sectional view of an overall structure of a touch display screen in the prior art;

fig. 2 is a schematic cross-sectional view illustrating an overall structure of a touch display screen according to an embodiment of the present disclosure;

fig. 3 is a schematic cross-sectional view of an overall structure of a touch display screen according to another embodiment of the present application;

fig. 4 is a schematic cross-sectional view illustrating an overall structure of a touch display screen according to another embodiment of the present application;

FIG. 5 is a schematic cross-sectional view illustrating an overall structure of a touch display screen according to still another embodiment of the present application;

fig. 6 is a schematic cross-sectional view illustrating an overall structure of a touch display screen according to still another embodiment of the present application;

fig. 7 is a block diagram of an electronic device in the embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1, in the prior art, a touch display screen mainly includes a panel 100, a touch sensor 300 and a display module 200. In the assembly process, the touch sensor 300 is generally disposed between the panel 100 and the display module 200 to obtain better touch effect, but such a structure has the following problems: the touch sensor 300 may affect the transmittance of light, thereby affecting the color display of the display module 200 and reducing the display definition of the display module 200; in order not to affect the normal operation of the display module 200, the touch sensor 300 must be transparent, which is costly.

In order to solve the above technical problem, please refer to fig. 2 to fig. 3, an embodiment of the present application provides a touch display screen 10, in which the touch display screen 10 includes a panel 100, a display module 200, and a touch sensor 300.

The panel 100 is a component of the touch display screen 10 for protecting the display module 200 and the touch sensor 300, and is also a component that can be directly observed and touched by a user. The user can see the contents such as characters and images displayed on the touch display screen 10 through the panel 100, and can perform a touch operation through the touch panel 100. The panel 100 may be made of a light-transmitting material such as glass or resin.

The Display module 200 is a component for displaying contents such as characters or images, and currently, the mainstream Display component is a Liquid Crystal Display (LCD), and the LCD is divided into various types according to the difference of backlight light sources used by the LCD, such as an LCD using a cold cathode fluorescent lamp as a backlight light source, an LCD using a light emitting diode as a backlight light source, and the like. The display module 200 in this embodiment may be any of the above-mentioned ones, or may be another type not listed. The display module 200 is disposed on one side of the panel 100, and the display module 200 is used for displaying content on the side facing the panel 100. The display module 200 displays content under the excitation of light emitted from the light source, so the content displayed by the display module 200 is directional, and for the convenience of the user, the content is generally displayed on the side facing the panel 100. Thus, the user can see the content displayed by the display module 200 through the panel 100.

The touch sensor 300, also called a touch sensor, is a sensor that can capture and record a physical touch, and mainly functions when an object or an individual comes into physical contact therewith. Unlike a button or other similar manual controller, the touch sensor 300 is more sensitive to physical contact and is generally capable of responding to different types of touches in different ways, such as tapping, sliding, squeezing, and the like. The touch sensor 300 may be electrically connected to the processing unit of the display module 200, so as to send the captured and recorded physical trigger to the processing unit for subsequent processing to complete the touch operation. The touch sensor 300 is disposed on a side of the display module 200 away from the panel 100. Because the display module 200 displays content on the side facing the panel 100, the touch sensor 300 does not affect the display effect of the display surface, so that the definition of the touch display screen 10 is improved, and the touch sensor 300 does not need to be light-permeable, thereby reducing the overall cost.

In this embodiment, by changing the relative position relationship between the touch sensor 300 and the display module 200 in the touch display screen 10, the touch sensor 300 is disposed on the side of the display module 200 away from the panel 100, the touch sensor 300 does not affect the display effect of the display surface, the definition of the touch display screen 10 is improved, and the touch sensor 300 does not need to be light-permeable, so that the overall cost is reduced.

In one embodiment of the present application, the touch sensor 300 is non-transparent. The touch sensor 300 can be classified into a resistive touch sensor, a capacitive touch sensor, an optical touch sensor, and an acoustic wave touch sensor according to different sensing technologies. There are many differences in the types of components included in the touch sensor 300 of different sensing principles. For example, the touch sensor 300 in this embodiment is a capacitive touch sensor, which can well sense a slight and fast touch, so that the touch of the touch display screen 10 is more sensitive, and no calibration is needed, so that the touch display screen is convenient to use and has a long service life. When the touch sensor 300 is required to be transparent, the touch sensor 300 of the above type may not be used because the condition is not satisfied, or the cost may be greatly increased because of the change of the material. In the embodiment, since the touch sensor 300 does not affect the display effect of the display surface, the touch sensor 300 can be set to be non-transparent, so as to widen the selection range of the touch sensor 300, and also to improve the application range of the touch display screen 10 and reduce the cost of the touch sensor 300. For example, the touch sensor 300 may be manufactured by using a flexible circuit board, so that the touch sensor 300 has the advantages of high wiring density, light weight, thin thickness, good bending performance, and the like.

Referring to fig. 4 to 5, the touch display screen 10 further includes a polarizer 400. The polarizer 400 is called a polarizer, and is an important optical functional material in the touch display panel 10, and can control the polarization direction of a specific light beam, so that the touch display device has specific display characteristics. By changing the optical characteristics of the polarizer 400, the touch display panel 10 can have a desired display effect. The polarizer 400 is disposed between the panel 100 and the display module 200. That is, one surface of the polarizer 400 is attached to the panel 100, and the other surface of the polarizer 400 is attached to the display module 200. Bonding layers may be respectively disposed between the polarizer 400 and the panel 100 and between the polarizer 400 and the display module 200, the polarizer 400 and the panel 100 and between the polarizer 400 and the display module 200 may be respectively and fixedly connected through the bonding layers, other connecting members with a connecting function may be used to fix the polarizer 400, the polarizer 400 may be directly clamped in a gap between the panel 100 and the display module 200, and the polarizer 400 may be fixed by using a friction force generated by physical extrusion.

In order to reduce the distance between the touch sensor 300 and the panel 100 as much as possible, so that the touch sensor 300 can capture and record physical contact on the panel 100 with higher precision, thereby improving the touch sensitivity of the touch display screen 10, in the present embodiment, the thickness of the polarizer 400 is between 0.01mm and 1mm, such as 0.01mm, 0.1mm, 0.5mm, or 1mm, which is often used in practical assembly. The smaller the thickness of the polarizer 400, the smaller the distance between the touch sensor 300 and the panel 100, the higher the capture accuracy of the touch sensor 300, and the higher the touch sensitivity of the touch display screen 10. Accordingly, the requirement for the processing precision of the polarizer 400 is increased, and the overall cost of the touch display screen 10 is also increased. Conversely, the larger the thickness of the polarizer 400 is, the larger the distance between the touch sensor 300 and the panel 100 is, the capturing precision of the touch sensor 300 is relatively reduced, and the touch sensitivity of the touch display screen 10 is also reduced. In the actual manufacturing process, the thickness of the polarizer 400 may be determined appropriately according to the trade-off between the touch sensitivity of the touch display screen 10 and the overall cost.

Since the display module 200 and the touch sensor 300 have various high-precision components, in order to prevent the components from being damaged by external impact and prevent particles such as external dust and impurities from entering the components to affect normal use of the components, the panel 100 is used to protect the display module 200 and the touch sensor 300 in the touch display screen 10. In order to protect the display module 200 and the touch sensor 300 more completely, please refer to fig. 3, fig. 5 and fig. 6, in this embodiment, a surface of the panel 100 facing the display module 200 is the first surface 110, orthographic projections of the display module 200 and the touch sensor 300 on the first surface 110 are both located in the first surface 110, and the panel 100 completely covers the display module 200 and the touch sensor 300. The orthographic projection is along a direction perpendicular to the first surface 110, and the projections of the display module 200 and the touch sensor 300 on the first surface 110 are viewed from the direction perpendicular to the outer side surface of the panel 100, that is, the outer contour of the panel 100 covers the display module 200 and the touch sensor 300, and a space area convenient for packaging connection is reserved around the outer contour. The shape of the panel 100 can be consistent with the display module 200 and the touch sensor 300, so as to save materials and reduce the space occupied by the panel 100. Thus, after the touch display screen 10 is completely packaged, the display module 200 and the touch sensor 300 are completely wrapped, and thus are isolated from the outside, and the impact of the external force only affects the panel 100. The panel 100 may be made of a material with high strength or an energy absorbing function, so as to prevent the display module 200 and the touch sensor 300 from being damaged by external impact to a certain extent. In addition, particles such as external dust and impurities cannot penetrate through the panel 100 to contact the display module 200 and the touch sensor 300, so that normal use of the display module 200 and the touch sensor is not affected, and the service life of the touch display screen 10 is prolonged.

In one embodiment, in order to reduce the distance between the outer surface of the panel 100 and the touch sensor 300 and further improve the touch sensitivity of the touch display screen 10, the thickness of the panel 100 is between 0.10mm and 10mm, such as 0.10mm, 1mm, 5mm or 10mm, which is often used in practical assembly. The outer surface of the panel 100 is a surface that is directly contacted by a user when the touch display screen 10 is in actual use. The user's clicking, long-pressing, sliding, etc. operations are transmitted through the panel 100 in some form according to the type of touch and then recorded by the touch sensor 300. Therefore, the thickness of the panel 100 also affects the touch sensitivity of the touch display screen 10. In this embodiment, the thickness of the panel 100 is set to be between 0.10mm and 10mm, so that the touch sensor 300 can be ensured to be in a normal working state, and the touch sensitivity of the touch display screen 10 is further improved.

Because in the embodiment of the present application, the relative position relationship between the touch sensor 300 and the display module 200 in the touch display screen 10 is changed, and the touch sensor 300 is disposed on the side of the display module 200 away from the panel 100, so that the technical effects of improving the definition of the touch display screen 10 and reducing the overall cost are achieved. Accordingly, the thickness of the display module 200 may affect the capturing accuracy of the touch sensor 300. Therefore, in order to minimize the influence of the thickness dimension of the display module 200 on the capturing accuracy of the touch sensor 300, in one embodiment, the thickness dimension of the display module 200 is between 1mm and 5mm, such as 1mm, 3mm, or 5mm, which is often used in actual assembly. After the thickness dimensions of the panel 100, the polarizer 400 and the display module 200 are overlapped, the distance between the outer surface of the panel 100 and the touch sensor 300 is still within the normal working range of the touch sensor 300, so as to ensure that the touch sensor 300 is in the normal working state.

Since the panel 100 and the display module 200 are both disposed on the same side of the touch sensor 300, and no component is disposed on the other side of the touch sensor 300, other components or assemblies may be disposed on the side of the touch sensor 300 away from the display module 200 to improve the usability of the touch display screen 10. For example, referring to fig. 6, in an embodiment, the touch display screen 10 further includes a shielding layer 500, and the shielding layer 500 is used for shielding interference to the touch sensor 300 to improve the touch sensitivity of the touch display screen 10. The shielding layer 500 is disposed on a side of the touch sensor 300 away from the display module 200, and isolates the touch sensor 300 from the outside. Thus, interference signals from the outside or other components in the touch display screen 10 can be absorbed or guided out by the shielding layer 500, and cannot enter the touch sensor 300 to interfere with the display effect thereof.

In order to improve the tightness of the display module 200 and the touch sensor 300 and prevent the display module 200 and the touch sensor 300 from falling off, the display module 200 and the touch sensor 300 may be physically connected. For example, an optical adhesive is disposed on a surface of the display module 200 away from the panel 100, and the touch sensor 300 is connected to the display module 200 through the optical adhesive. Optical cement is a special adhesive used for cementing transparent optical elements. The adhesive has the characteristics of colorless transparency, light transmittance of over 90 percent, good bonding strength, capability of being cured at room temperature or middle temperature, small curing shrinkage and the like. Adhesives such as silicone, acrylic, unsaturated polyester, polyurethane, epoxy and the like can be used to bond the optical elements. In the formulation of optical glues, some treatment agents are usually added to improve the optical properties or to reduce the cure shrinkage.

As described above, the panel 100 in the embodiment of the present application is required to have light transmittance, high strength, or an energy absorbing function, and to have a thickness as small as possible. Therefore, the material used to fabricate the panel 100 may be selected from polymer materials having the above properties. For example, in one embodiment, panel 100 is fabricated from a polyimide material. Polyimide is one of organic polymer materials with the best comprehensive performance, has high temperature resistance, high stability, difficult decomposition, high insulating property, low dielectric loss and strong impact resistance, has outstanding characteristics in performance and synthesis, can fully play the characteristics no matter used as a structural material or a functional material, and shows outstanding performance in every aspect.

An embodiment of the present application further provides an electronic device 20, as shown in fig. 7, where the electronic device 20 includes the touch display screen 10. In the assembling process of the electronic device 20 of this embodiment, the touch sensor 300 in the touch display screen 10 is disposed on the side of the display module 200 away from the panel 100, and since the display module 200 displays content on the side facing the panel 100, the touch sensor 300 does not affect the display effect of the display surface, thereby improving the definition of the touch display screen 10, and the touch sensor 300 does not need to be light-permeable, thereby reducing the overall cost. The electronic device 20 is any device having an image acquisition function, and may be any one of wearable devices such as a mobile phone, a tablet computer, a notebook computer, a personal digital assistant, an intelligent bracelet, and an intelligent watch, for example, and the touch display screen 10 is used to realize functions such as display of contents such as target characters or images, and touch operation in cooperation with the electronic device 20.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A touch display screen, comprising:

a panel;

the display module is arranged on one side of the panel and is used for displaying content on the side facing the panel;

and the touch sensor is arranged on one side of the display module group, which deviates from the panel.

2. Touch display screen according to claim 1,

the touch sensor is non-transparent.

3. The touch display screen of claim 1, further comprising:

and the polaroid is arranged between the panel and the display module.

4. Touch display screen according to claim 3,

the thickness of the polaroid is 0.01 mm-1 mm.

5. Touch display screen according to claim 1,

the surface of the panel facing the display module is a first surface, and the orthographic projections of the display module and the touch sensor on the first surface are both located in the first surface.

6. Touch display screen according to claim 1,

the touch sensor is a capacitive touch sensor.

7. The touch display screen of claim 1, further comprising:

and the shielding layer is used for shielding the interference to the touch sensor, and the shielding layer is arranged on one side of the touch sensor departing from the display module.

8. Touch display screen according to claim 1,

the surface of the display module group, which deviates from the panel, is provided with optical cement, and the touch sensor is connected with the display module group through the optical cement.

9. Touch display screen according to claim 1,

the touch sensor is made of a flexible circuit board.

10. An electronic device, comprising:

the touch display screen of any one of claims 1-9.

Images