CN214042292U

CN214042292U - 3D touch screen

Info

Publication number: CN214042292U
Application number: CN202023111997.8U
Authority: CN
Inventors: 王辉
Original assignee: Truly Opto Electronics Ltd
Current assignee: Truly Opto Electronics Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-24
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a 3D touch screen sets up on the intelligent terminal back shroud, including 3D numeric keyboard, touch-control unit and display element, 3D numeric keyboard chemical etching is perhaps carved on the back shroud, display element includes display window, display window sets up on the back shroud, 3D numeric keyboard with the touch-control unit corresponds the setting. Implement the utility model discloses, solved prior art, blind person or the not good people of eyesight can't carry out effective interactive problem with intelligent terminal.

Description

3D touch screen

Technical Field

The utility model relates to a cell-phone touch-control technical field, in particular to can make things convenient for 3D touch screen that the not good personage of eyesight used.

Background

The touch screen brings convenient operation that people not only can touch but also can obtain, what we need to do is to press a finger gently towards the screen, and meanwhile, functions which cannot be realized by a non-touch screen can be achieved, for example, people can freely scribble on a photo shot by the people just like holding a painting brush by themselves. An operation that needs to be performed by pressing a button several times on the keyboard, perhaps with a gentle stroke on the touch screen. As long as the finger lightly touches and touches, our physical contact can be translated into a digital code.

Because the touch screen can replace a button, the encumbrance brought by a keyboard can be abandoned, the screen is further expanded to the whole panel, and a larger balance point is obtained between the size of the machine body and the size of the screen. For a large number of users, a larger screen brings better user experience, and is the development need and direction of a human-computer interaction interface. The touch screen has become a main human-computer interaction interface of personal mobile communication equipment and integrated information terminals, such as tablet computers, smart phones, medical equipment, vehicle-mounted center consoles, vehicle-mounted navigation and the like, because the touch screen has the advantages of easiness in operability, intuition, flexibility and the like. The types of touch screens are various, wherein the projected capacitive touch screen has the characteristics of multi-point touch, fast response time, long service life, light structure, thinness and the like, and is a main technology adopted by touch interaction of medium and small-sized information terminals at present.

However, as a human-computer interaction tool, the biggest problem of the touch interface is that there is no real operation hand feeling, and the touch interface cannot have a powerful feedback reaction like a real keyboard, which is fatal to the blind or people with poor eyesight and cannot perform effective interaction basically, and in addition, the interactive operation of the plane touch area of the smart machine is very power-consuming. The existing terminal with the keyboard has less functions and can not meet the requirements of users.

SUMMERY OF THE UTILITY MODEL

The existing intelligent terminal has the following problems: the intelligent terminal has no real operation hand feeling, and cannot give a powerful feedback reaction like a real keyboard, so that the intelligent terminal is fatal to the blind or people with poor eyesight, effective interaction cannot be carried out basically, and the interactive operation of the plane touch area of the intelligent terminal is very power-consuming. The existing terminal with the keyboard has less functions and can not meet the requirements of users.

Aiming at the problems, the 3D touch screen is provided, the display window is arranged on the rear cover plate of the intelligent terminal, and the 3D numeric keyboard is etched or carved, so that the functions of the intelligent terminal are reserved, the real operation hand feeling can be obtained, and the problem that in the prior art, a blind person or a person with poor eyesight cannot effectively interact with the intelligent terminal is solved. When the 3D numeric keyboard is used, the touch screen on the front side of the intelligent terminal is not lightened to work, and therefore energy consumption is reduced. The 3D glass cover plate is light, thin and attractive in whole, and high in strength and precision. The touch screen is operated by detecting the strain generated by the touch pressure on the substrate, and the touch operation of a user is not limited by a touch mode. Meanwhile, deformation of each strain inductor does not need to be detected, the requirement on installation and connection of each strain inductor and the substrate is low, and the reliability and the sensitivity of the pressure induction type touch screen are improved. The single-layer mutual capacitance touch panel can also be used for realizing high-frequency scanning and improving the accuracy of scanning touch signals.

The first aspect of the invention provides a 3D touch screen, which is arranged on a rear cover plate of an intelligent terminal and comprises a 3D numeric keyboard, a touch unit and a display unit, wherein the 3D numeric keyboard is chemically etched or engraved on the rear cover plate, the display unit comprises a display window, the display window is arranged on the rear cover plate, and the 3D numeric keyboard and the touch unit are correspondingly arranged.

Combine 3D touch screen, in the first possible embodiment, the back shroud is 3D glass apron, including the apron main part, the upper surface edge of apron main part is 2.5D edge, the lower surface of apron main part is equipped with the recess that is used for laminating touch-control unit and display element.

Combine 3D touch screen, in the possible embodiment of second, the touch-control unit is forced induction formula touch-control unit, the back shroud is elastic deformation performance material, forced induction formula touch-control unit is including being used for detecting back shroud lateral deformation just set firmly in the strain inductor of the peripheral department of the lower surface of back shroud, through strain sensor detects the last elastic deformation volume of back shroud horizontal direction, discernment touch position and touch pressure size simultaneously.

Combine the possible condition of second, in the third possible implementation, forced induction formula touch unit still includes a bearing plate, the bearing plate set firmly in the upper surface of back shroud.

Combine first possible implementation, in the fourth possible implementation, the touch-control unit is capacitanc touch-control unit, capacitanc touch-control unit includes scanning electrode, first response electrode and second response electrode, scanning electrode is close to formation mutual electric capacity with first response electrode, second response electrode respectively, first response electrode response touch-control signal's vertical coordinate, second response electrode response touch-control signal's horizontal coordinate.

Combine the fourth possible implementation, in the fifth possible implementation, capacitanc touch-control unit is the array and arranges, and arbitrary touch-control unit's scanning electrode links to each other, and the first response electrode that is located the touch-control unit on same line links to each other, and the second response electrode that is located the touch-control unit on same column links to each other.

Implement the utility model provides a 3D touch screen, 3D numeric keypad preparation method and interactive method set up the display window through the back shroud at intelligent terminal to etching or sculpture 3D numeric keypad has both kept intelligent terminal's function, also can obtain the operation of true existence and feel, has solved prior art, and the blind person or the poor people of eyesight can't carry out effective interactive problem with intelligent terminal. When the 3D numeric keyboard is used, the touch screen on the front side of the intelligent terminal is not lightened to work, and therefore energy consumption is reduced. The 3D glass cover plate is light, thin and attractive in whole, and high in strength and precision. The touch screen is operated by detecting the strain generated by the touch pressure on the substrate, and the touch operation of a user is not limited by a touch mode. Meanwhile, deformation of each strain inductor does not need to be detected, the requirement on installation and connection of each strain inductor and the substrate is low, and the reliability and the sensitivity of the pressure induction type touch screen are improved. The single-layer mutual capacitance touch panel can also be used for realizing high-frequency scanning and improving the accuracy of scanning touch signals.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a 3D numeric keypad outside a rear cover plate of an intelligent terminal in a 3D touch screen according to the present invention;

fig. 2 is a schematic diagram of a groove of a touch unit and a display unit inside a rear cover plate of an intelligent terminal in a 3D touch screen according to the present invention;

fig. 3 is a schematic diagram of a logical connection of the functional modules of the 3D touch screen according to the present invention;

fig. 4 is a schematic diagram illustrating steps of an embodiment of a method for manufacturing a 3D numeric keypad according to the present invention;

fig. 5 is a schematic diagram of step S1 of an embodiment of a method for making a 3D numeric keyboard according to the present invention;

fig. 6 is a schematic diagram of step S3 of an embodiment of a method for making a 3D numeric keyboard according to the present invention;

fig. 7 is a schematic diagram illustrating a touch interaction method according to an embodiment of the present invention;

the part names indicated by the numbers in the drawings are as follows: 100-back cover plate, 110-3D numeric keyboard, 120-touch unit, 121-groove, 130-display unit, 131-display window.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative efforts all belong to the protection scope of the present invention.

In order to solve the problems, a 3D touch screen, a 3D numeric keyboard manufacturing method and a touch interaction method are provided.

3D touch Screen embodiments

The utility model provides a 3D touch screen, as in FIG. 3, FIG. 3 is the utility model discloses in a 3D touch screen function module logical connection sketch map, set up on intelligent terminal back shroud 100, including 3D numeric keyboard 110, touch-control unit 120 and display element 130, 3D numeric keyboard 110 chemical etching or sculpture are on back shroud 100, and display element 130 includes display window 131, and display window 131 sets up on back shroud 100, and 3D numeric keyboard 110 corresponds the setting with touch-control unit 120. As fig. 2, fig. 2 is the utility model discloses in the inboard touch-control unit of intelligent terminal back shroud and the display element recess sketch map in a 3D touch screen, back shroud 100 is the 3D glass apron, including the apron main part, the upper surface edge of apron main part is 2.5D edges, and the lower surface of apron main part is equipped with the recess 121 that is used for laminating touch-control unit 120.

3D touch screen sets up on intelligent terminal's back shroud 100, like figure 1, figure 1 is the utility model discloses in a 3D numeric keyboard structure sketch map in the intelligent terminal back shroud outside in the 3D touch screen, intelligent terminal can be smart mobile phone, mobile intelligent terminal such as ipad, touch-control unit 120 and the display element 130 among the functional unit laminate in the recess 121 that the back shroud 100 etching formed. The 3D numeric keypad 110 is disposed corresponding to the position of the touch unit 120. The display window 131 is arranged on the rear cover plate 100 of the intelligent terminal, and the 3D numeric keyboard 110 is etched or engraved, so that the functions of the intelligent terminal are maintained, the real operation hand feeling can be obtained, and the problem that the blind or people with poor eyesight in the prior art cannot perform effective interaction is solved. When the 3D numeric keyboard is used, the touch screen on the front side of the intelligent terminal is not lightened to work, and therefore energy consumption is reduced.

The outer contour of the 3D glass cover plate and the 2.5D edge of the upper surface need to be machined by a numerical control machine, and then the 2.5D edge and the groove 121 need to be scanned by a scanning device.

The touch unit 120 is a pressure-sensitive touch unit, the rear cover plate 100 is made of an elastic deformation material, the pressure-sensitive touch unit includes a strain sensor for detecting the transverse deformation of the rear cover plate 100 and fixedly disposed at the periphery of the lower surface of the rear cover plate 100, the strain sensor detects the elastic deformation of the rear cover plate 100 in the horizontal direction, and simultaneously identifies the touch position and the touch pressure.

The pressure sensing type touch unit further includes a pressure plate fixed on the upper surface of the rear cover plate 100, and a position of a side projection of the pressure plate on the strain sensor is located at a middle position of the strain sensor.

In this embodiment, the pressure-sensitive touch unit includes a back cover plate 100 and a strain sensor; the rear cover plate 100 has a high-sensitivity elastic deformation performance for a user to operate, and the strain sensor is fixedly disposed at a periphery of a lower surface of the rear cover plate 100. When a user touches the 3D keypad keys on the rear cover 100, the rear cover 100 is deformed laterally along its surface direction, that is, the rear cover 100 is deformed along its length direction and width direction. The strain inductor can calculate the position touched by the user and the pressure by detecting the transverse deformation. The touch screen is characterized in that an additional operation dimension is provided for the touch operation of a user, a pressure-sensitive operation function is provided for the user, the operation of the touch screen is realized by detecting the strain of the touch pressure on the rear cover plate 100, so that the touch screen is not limited by a touch mode, non-conductive objects (such as pens, gloves and the like) and conductive objects (such as fingers) can generate touch action, the touch screen can adapt to different input methods, the deformation of each strain sensor does not need to be detected, and the use reliability of the pressure-sensitive touch screen is improved.

The touch unit 120 is a capacitive touch unit and includes a scan electrode, a first sensing electrode and a second sensing electrode, the scan electrode is respectively close to the first sensing electrode and the second sensing electrode to form mutual capacitance, the first sensing electrode senses a longitudinal coordinate of the touch signal, and the second sensing electrode senses a transverse coordinate of the touch signal; the capacitive touch units are arranged in an array, the scanning electrodes of any touch unit 120 are connected, the first sensing electrodes of the touch units 120 in the same row are connected, and the second sensing electrodes of the touch units 120 in the same column are connected.

In the present embodiment, the capacitive touch unit includes a plurality of touch units 120, and each of the touch units 120 includes a scan electrode, a first sensing electrode, and a second sensing electrode. In this embodiment, the first sensing electrode of the touch unit 120 located in the same row is connected to each other, and the second sensing electrode of the touch unit 120 located in the same column is connected to each other, and utilizes the longitudinal coordinate of the touch signal sensed by the first sensing electrode, the transverse coordinate of the touch signal sensed by the second sensing electrode, and the scanning electrode of any touch unit 120 on the capacitive touch unit is connected to each other, so that the scanning electrode on the whole capacitive touch unit can scan at the same moment, thereby making the capacitive touch unit in the utility model can realize high-frequency scanning and improve the accuracy of scanning the touch signal.

Embodiment of method for making 3D numeric keyboard 110

Referring to fig. 4, fig. 4 is a schematic view illustrating steps of a method for manufacturing a 3D numeric keypad according to an embodiment of the present invention, and a method for manufacturing a 3D numeric keypad 110 includes the steps

S1, manufacturing an intelligent terminal 3D glass rear cover plate 100; s2, setting a display window 131 and a touch area on the 3D glass rear cover plate 100; s3, carving or chemically etching the 3D numeric keypad 110 in the touch area. Engraving or chemically etching the 3D numeric keypad 110 may allow a user to obtain information of the keys by touching, and then press a plurality of 3D numeric keys to transmit interactive information. When the 3D numeric keyboard is used, the touch screen on the front side of the intelligent terminal is not lightened to work, and therefore energy consumption is reduced.

Referring to fig. 5, fig. 5 is a schematic diagram of step S1 of an embodiment of a method for making a 3D numeric keypad according to the present invention, and step S1 includes the following sub-steps:

s11, uniformly coating photoresist on the glass; s12, placing the glass coated with the photoresist in an exposure machine, exposing a target pattern on the glass by using a photomask, and then developing to show the target pattern, wherein the target pattern comprises a protective area covered by the photoresist and an etching area not covered by the photoresist, and the etching area comprises an area of the rear cover plate 100 correspondingly attached to the touch unit 120 and the display unit 130; s13, etching the etching area of the glass with the etching solution to form a groove 121 for attaching the touch unit 120 and the display unit 130.

Referring to fig. 6, fig. 6 is a schematic diagram of step S3 according to an embodiment of the present invention, where step S3 includes the following sub-steps:

s31, arranging the touch unit 120 in a manner of fitting the inner side of the 3D cover plate corresponding to the 3D numeric keyboard 110; s32, the touch unit 120 is configured as a pressure-sensitive touch unit or a capacitive touch unit.

As shown in fig. 7, fig. 7 is a schematic view illustrating steps of a touch interaction method according to an embodiment of the present invention, and the touch interaction method includes the steps of:

SA, the user learns key information by touching the 3D numeric keypad 110; SB, the user presses the button, transmits the interactive information to the intelligent terminal and displays the relevant information through the display window 131.

The touch screen on the front side of the intelligent terminal is closed by opening the display window 131 on the rear cover plate 100 of the intelligent terminal and etching or engraving the 3D numeric keypad 110. Both kept intelligent terminal's function, also can obtain the operation of real existence and feel, the not good user of eyesight learns key-press information through touching 3D numeric keyboard 110, presses a plurality of 3D numeric keyboard keys, transmits mutual information to intelligent terminal and shows relevant information through display window 131, has solved among the prior art, and the blind person or the not good person of eyesight say, can't carry out effectual interactive problem with intelligent terminal. When the 3D numeric keyboard is used, the touch screen on the front side of the intelligent terminal is not lightened to work, and therefore energy consumption is reduced.

Implement the utility model provides a 3D touch screen, 3D numeric keyboard 110 preparation method and interactive method set up display window 131 through the back shroud 100 at intelligent terminal to etching or sculpture 3D numeric keyboard 110, both kept intelligent terminal's function, also can obtain the operation of true existence and feel, solved prior art, the blind person or the poor people of eyesight can't carry out effective interactive problem with intelligent terminal. When the 3D numeric keyboard is used, the touch screen on the front side of the intelligent terminal is lightened to work, and therefore energy consumption is reduced. The 3D glass cover plate is light, thin and attractive in whole, and high in strength and precision. The touch screen is operated by detecting the strain generated by the touch pressure on the substrate, and the touch operation of a user is not limited by a touch mode. Meanwhile, deformation of each strain inductor does not need to be detected, the requirement on installation and connection of each strain inductor and the substrate is low, and the reliability and the sensitivity of the pressure induction type touch screen are improved. The single-layer mutual capacitance touch panel can also be used for realizing high-frequency scanning and improving the accuracy of scanning touch signals.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The 3D touch screen is characterized by being arranged on a rear cover plate of an intelligent terminal and comprising a 3D numeric keyboard, a touch unit and a display unit, wherein the 3D numeric keyboard is chemically etched or engraved on the rear cover plate, the display unit comprises a display window, the display window is arranged on the rear cover plate, and the 3D numeric keyboard and the touch unit are correspondingly arranged.

2. The 3D touch screen of claim 1, wherein the back cover is a 3D glass cover comprising a cover body, the edge of the upper surface of the cover body is a 2.5D edge, and the lower surface is provided with a groove for attaching the touch unit and the display unit.

3. The 3D touch screen of claim 1, wherein the touch unit is a pressure-sensitive touch unit, the back cover is made of an elastic deformation material, the pressure-sensitive touch unit comprises a strain sensor fixed on the periphery of the lower surface of the back cover for detecting the lateral deformation of the back cover, and the strain sensor detects the elastic deformation of the back cover in the horizontal direction and identifies the touch position and the touch pressure.

4. The 3D touch screen of claim 3, wherein the pressure-sensitive touch unit further comprises a pressure-bearing plate, and the pressure-bearing plate is fixedly arranged on the upper surface of the rear cover plate.

5. The 3D touch screen of claim 2, wherein the touch unit is a capacitive touch unit, the capacitive touch unit includes a scan electrode, a first sensing electrode and a second sensing electrode, the scan electrode is respectively close to the first sensing electrode and the second sensing electrode to form mutual capacitance, the first sensing electrode senses a longitudinal coordinate of the touch signal, and the second sensing electrode senses a transverse coordinate of the touch signal.