CN207799659U - Electronic equipment and capacitive touch screen - Google Patents

Abstract

The utility model is related to a kind of capacitive touch screen and electronic equipments, the capacitive touch screen includes display module, shielding construction and cover board, the cover plate lid is set in the display module, the shielding construction is set between the display module and the cover board, and the shielding construction is the internal optical cement for being added with conducting particles.In above-mentioned capacitive touch screen, the internal optical cement added with conducting particles is set to as shielding construction between display module and cover board, certain sheet resistance is formed, meets the weak shielding demand of capacitive touch screen.Also, conducting particles is added in optical cement to be relatively easy to, it is simple for process, while when realizing weak shielding by making an addition to the conducting particles in optical cement, performance is stablized, and the reliability of weak shielding is higher.

Description

Electronic equipment and capacitive touch screen

Technical field

The utility model is related to electronic technology fields, more particularly to electronic equipment and capacitive touch screen.

Background technology

Capacitive touch screen is to incude a kind of touch screen technology to work using the electric current of human body, is widely used in hand On the electronic products such as machine, GPS, tablet computer.Wherein, since finger needs to keep with the internal inductor of display module (LCD) Actual induction, therefore cannot have the conductive materials shielded by force between finger and display module.On the other hand, mould is shown in order to prevent Group is influenced to cause display abnormal by extraneous static, then needs to be arranged in display module conductive materials to shield external interference.

Based on this, in order to be compatible with above two demand, weak shielding construction can be set in display module, you can with shielding External interference, while finger and the actual induction of display module can be kept.In traditional solution, usually in display module table Face plates inorganic high resistance film and realizes weak shielding, but inorganic high resistance film is easy that sheet resistance variation is occurred by ectocine, makes weak shielding Reliability is relatively low.

Utility model content

Based on this, it is necessary to for the relatively low problem of the weak shielding reliability of conventional touch screen, it is reliable to provide a kind of weak shielding The higher capacitive touch screen of property.

It there is a need to and a kind of electronic equipment with the capacitive touch screen is provided.

A kind of capacitive touch screen, including display module, shielding construction and cover board, the cover plate lid are set to the display On module, the shielding construction is set between the display module and the cover board, and the shielding construction is internal adds There is the optical cement of conducting particles.

In above-mentioned capacitive touch screen, the internal optical cement added with conducting particles is set to display as shielding construction Between module and cover board, certain sheet resistance is formed, meets the needs of capacitive touch screen weak shielding.Also, add in optical cement Add conducting particles to be relatively easy to, it is simple for process, while by make an addition to the conducting particles in optical cement realize weak shielding when, performance Stablize, the reliability of weak shielding is higher.In one of the embodiments, the capacitive touch screen further include flexible PCB and The welding block of flexible PCB described in conductive solder and the display module, the conducting particles in the optical cement is by leading Electric silver paste is conductively connected with the welding block.

The display module includes display screen in one of the embodiments, and the display screen includes towards the cover board Upper surface and backwards to the upper surface lower surface；The upper surface includes the first area of the close flexible PCB, The conductive silver paste covers at least partly described first area and at least partly described welding block, the optical cement are covered and wrapped up The conductive silver paste, and the optical cement is adhered between the display screen and the cover board.

The display module further includes being respectively arranged at the upper surface and the lower surface in one of the embodiments, On upper polaroid and down polaroid, the upper surface further includes the second area adjacent with the first area；It is described inclined Mating plate is stacked at the second area, and the conductive silver paste also covers at least partly described upper polaroid, the optical cement covering And the conductive silver paste is wrapped up, and the optical cement is adhered between the upper polaroid and the cover board.

The display module further includes light guide plate in one of the embodiments, and the light guide plate is set to the lower polarisation Side of the piece far from the display screen.

Further include shell in one of the embodiments, the casing depression forms the container with bottom wall, described aobvious Show that module is set in the container and is supported on the bottom wall, the cover plate lid is set to the open end of the container.

The shell includes inner casing and shell in one of the embodiments, and the inner casing is recessed to form the container, The casing is set to outside the inner casing.

The inner casing is fabricated from a flexible material in one of the embodiments, and the shell is made of rigid material.

The display screen is internally provided with touch inductor in one of the embodiments,.

A kind of electronic equipment, including above-mentioned capacitive touch screen.

Description of the drawings

Fig. 1 is the structural schematic diagram of capacitive touch screen in one embodiment of the utility model.

Specific implementation mode

The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model, It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can in many different forms come in fact It is existing, however it is not limited to embodiment described herein.Make public affairs to the utility model on the contrary, purpose of providing these embodiments is The understanding for opening content is more thorough and comprehensive.

It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.

Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes Any and all combinations of one or more relevant Listed Items.

As shown in Figure 1, the capacitive touch screen 100 in one embodiment of the utility model includes display module 10, shielding knot Structure and cover board 50, cover board 50 are covered in display module 10, and shielding construction is set between display module 10 and cover board 50, and Shielding construction is the internal optical cement 30 for being added with conducting particles.

In above-mentioned capacitive touch screen 100, the internal optical cement 30 added with conducting particles is arranged as shielding construction Between display module 10 and cover board 50, certain sheet resistance is formed, meets the needs of 100 weak shielding of capacitive touch screen.And And addition conducting particles is relatively easy in optical cement 30, it is simple for process, while by making an addition to the conductive particle in optical cement 30 When son realizes weak shielding, performance is stablized, and the reliability of weak shielding is higher.

In one embodiment, capacitive touch screen 100 includes flexible PCB 20 and conductive solder flexible PCB 20 With the welding block 40 of display module 10, the conducting particles in optical cement 30 is conductively connected by conductive silver paste 60 and welding block 40, To be electrically connected conducting particles and flexible PCB 20 in optical cement 30 by conductive silver paste 60 and welding block 40, so in flexibility After being grounded the conducting particles being connected electrically can be grounded circuit board 20, and then carry out electrostatic screen, prevent external interference, together When allow 10 flexible finger sensing of display module, realize weak shielding.

In one embodiment, display module 10 includes display screen 12, and display screen 12 includes the upper surface towards cover board 50 121 and backwards to upper surface 121 lower surface 123；Upper surface 121 includes close to the first area 125 of flexible PCB 20, conducting wire Silver paste 60 covers at least partly first area 125 and at least partly welding block 40, and optical cement 30 covers and includes conductive silver paste 60, and conductive silver paste 60 is adhered between display screen 12 and cover board 50.One is reserved i.e. on the upper surface of display screen 12 121 Subregion forms first area 125, the weldering on 125 side of the covering of conductive silver paste 60 at least partly first area 125 and first area Block 40 is connect, then offset is absorbed by being set to the mobility of the optical cement 30 between display screen 12 and cover board 50, makes optical cement The conductive silver paste 60 of 30 coverings and package on display screen 12 and welding fast 40, makes conducting particles in optical cement 30 and leads Electric silver paste 60 connects.Conducting particles in such optical cement 30 passes through welding block 40 and flexible PCB again by conductive silver paste 60 20 realize electrical connection, and then can be grounded by flexible PCB 20 and carry out electrostatic screen.Specifically, it is provided in display screen 12 Touch inductor is used for the touch-control of finger sensing.

In one embodiment, display module 10 further include be respectively arranged at it is upper on upper surface 121 and lower surface 123 Polaroid 14 and down polaroid 16 so that be projected to the light on display screen 12 by upper polaroid 14 or down polaroid 16, only can It is transmitted along a certain certain vibration direction, to filter unnecessary light.And upper surface 121 further includes adjacent with first area 125 Second area 127, upper polaroid 14 is stacked at second area 127, and conductive silver paste 60 also covers at least partly upper polaroid 14, Optical cement 30 covers and wraps up conductive silver paste 60, and optical cement 30 is adhered between upper polaroid 14 and cover board 50.I.e. by upper When conductive silver paste 60 is arranged in the first area 125 reserved on surface 121, conductive silver paste 60 can also be extended over partly to the secondth area In upper polaroid 14 in domain 123, keep the installation space of conductive silver paste 60 more flexible, is convenient for the preparation of conductive silver paste 60.Together When, the optical cement 30 being adhered between upper polaroid 14 and cover board 50 can cover and wrap up the conduction being covered in upper polaroid 14 Silver paste 60.

In one embodiment, display module 10 further includes light guide plate 18, and it is separate that light guide plate 18 is set to down polaroid 16 The side of display screen 12 makes light be projected by 18 front of light guide plate, and be transferred to aobvious for linear light source to be changed into area source At display screen 12.

In one embodiment, capacitive touch screen 100 further includes shell 70, and the recess of shell 70 is formed with bottom wall 72 Container 71, display module 10 are set in container 71 and are supported on bottom wall 72, and cover board 50 is covered on opening for container 71 Mouth end.Display module 10 is so accommodated by shell 70, assembly is used convenient for follow-up.

Further, shell 70 includes inner casing 72 and shell 74, and the recess of inner casing 72 forms container 71, and shell 74 is sheathed on Outside inner casing 74.Specifically, inner casing 72 is fabricated from a flexible material, and makes each device being contained in its container 71 because in flexibility The more softness of shell 92 will not be destroyed.Shell 74 is made of rigid material, and inner casing 72 flexible is avoided to deform.Optionally, interior Shell 72 is rubber jar, and shell 74 is metal-back.

Based on above-mentioned capacitive touch screen 100, the utility model also provides a kind of electronic equipment, which includes upper Capacitive touch screen 100 is stated, the flexibility of electronic equipment touch-control is ensured by weak shielding, while preventing extraneous static to display screen 12 generate interference.

Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, it is all considered to be the range of this specification record.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (10)

1. a kind of capacitive touch screen, which is characterized in that including display module, shielding construction and cover board, the cover plate lid is set In in the display module, the shielding construction is set between the display module and the cover board, and the shielding construction For the internal optical cement for being added with conducting particles.

2. capacitive touch screen according to claim 1, which is characterized in that the capacitive touch screen further includes flexible electrical The welding block of flexible PCB and the display module described in road plate and conductive solder, the conducting particles in the optical cement It is conductively connected by conductive silver paste and the welding block.

3. capacitive touch screen according to claim 2, which is characterized in that the display module includes display screen, described Display screen includes the upper surface towards the cover board and the lower surface backwards to the upper surface；The upper surface includes close to described The first area of flexible PCB, the conductive silver paste cover at least partly described first area and at least partly described welding Block, the optical cement cover and wrap up the conductive silver paste, and the optical cement be adhered to the display screen and the cover board it Between.

4. capacitive touch screen according to claim 3, which is characterized in that the display module further includes being respectively arranged at The upper surface and the upper polaroid on the lower surface and down polaroid, the upper surface further include and the first area phase Adjacent second area；The upper polaroid is stacked at the second area, and the conductive silver paste also covers at least partly described Polaroid, the optical cement cover and wrap up the conductive silver paste, and the optical cement is adhered to the upper polaroid and described Between cover board.

5. capacitive touch screen according to claim 4, which is characterized in that the display module further includes light guide plate, institute It states light guide plate and is set to side of the down polaroid far from the display screen.

6. capacitive touch screen according to claim 1, which is characterized in that further include shell, the casing depression is formed Container with bottom wall, the display module are set in the container and are supported on the bottom wall, the cover plate lid Set on the open end of the container.

7. capacitive touch screen according to claim 6, which is characterized in that the shell includes inner casing and shell, described Inner casing is recessed to form the container, and the casing is set to outside the inner casing.

8. capacitive touch screen according to claim 7, which is characterized in that the inner casing is fabricated from a flexible material, described Shell is made of rigid material.

9. capacitive touch screen according to claim 3, which is characterized in that the display screen is internally provided with touch sensible Device.

10. a kind of electronic equipment, which is characterized in that including the capacitive touch screen described in the claims 1-9 any one.