CN218938926U - A touch display module - Google Patents

Abstract

The utility model discloses a touch display module, which belongs to the technical field of screens, and can solve the problems that the touch display module manufactured by the traditional technology is broken, blocked and slowly responded and is easily interfered by an outer frame by only adding one piece of optical glass with a surface screen printing circuit on the basis of the prior art.

Description

A touch display module

technical field

The utility model relates to the technical field of screens, in particular to a touch display module.

Background technique

With the development of science and technology and the improvement of people's living standards, people have higher and higher requirements for the experience effect of intelligent touch display structure products. At present, most home appliances, medical care, and industrial touch display products are glass + OCA + ITO glass + display The structure of the module, the product touch module of this structure will cause some interference to the display module, the user experience effect is not very good, sometimes there will be stuck or slow response, and some home appliances and medical and industrial control products The display module is protected by an iron frame around the periphery. Products with this structure will cause the iron frame to directly contact the lower circuit, and will also interfere with the lower circuit of the ITO glass, and it is easy to damage the lower circuit. In addition, for external impact or Collision during use may also cause damage to the silk-screened circuit on the lower layer of the ITO glass of the touch module, resulting in defective products. To sum up, the current structure of glass + OCA + ITO glass + display module for home appliances, medical care, and industrial control products on the market has certain defects, which are not good for user experience. Damage to the circuit on the lower layer of ITO glass in touch products, resulting in poor touch of the product, which makes it difficult to promote the overall smart touch display products on a large scale.

Utility model content

In view of this, the purpose of this utility model is to provide a touch display module with good stability and not easily disturbed by the metal frame.

The utility model provides a touch display module, comprising: a touch module and a display module, wherein the touch module includes a first glass layer, a second glass layer, and a third glass layer, and the first The glass layer is located on the outermost side, the second glass layer is located inside the first glass layer, the third glass layer is located inside the second glass layer, and the upper surface of the second glass layer is attached to the first glass layer. The lower surface of the second glass layer is bonded to the third glass layer, the first glass layer includes optical glass, the second glass layer includes ITO glass, and the third glass layer includes optical glass, As mentioned above, the outside of the third glass layer has an ITO ground wire. As mentioned in the background technology, the structure of the traditional touch display module only includes one layer of optical glass and one layer of ITO glass on the glass, which leads to a certain interference between the product touch module and the display module. The contact of the lower layer circuit will interfere with the lower layer circuit of the ITO glass and easily damage the lower layer circuit. In addition, external impact or collision during use may also cause damage to the silk screen circuit on the lower layer of the ITO glass of the touch module, resulting in product failure. damage. The utility model adopts the structure of optical glass+ITO glass+optical glass. For the display module wrapped by the iron frame, the ITO glass and the display module will not be in direct contact, which reduces the interference of the iron frame on the inner circuit of the ITO glass, and further Play the role of anti-interference.

Preferably, the thickness of the third glass layer is less than 0.4mm. The main function of the third glass layer is to block the second glass layer and the display module, so its thickness should not be too thick.

Preferably, the first glass layer and the second glass layer are connected by OCA optical glue, and the OCA optical glue constitutes the first OCA layer.

Preferably, the third glass layer and the second glass layer are connected by OCA optical glue, and the OCA optical glue constitutes the second OCA layer.

Use OCA optical glue to bond the first glass layer and ITO glass, ITO glass and the second glass layer, which can reduce glare, reduce the loss of light emitted by LCD or AMOLED displays, increase the brightness of the display and provide high transmittance, and reduce energy consumption. , to increase the contrast, especially the contrast under strong light irradiation, and at the same time, the structure has higher strength, which can avoid the generation of Newton rings.

Preferably, outer ITO glass lines are arranged on the outside of the second glass layer, and inner ITO glass lines are arranged on the inside of the second glass layer.

Preferably, the first glass layer includes optical glass; the second glass layer includes ITO glass; and the third glass layer includes optical glass. The main function of the first glass layer and the third glass layer is to block the air from the second glass layer, and the second glass layer from the display module, so optical glass can be used.

Preferably, the ITO ground wire is bound to the FPC.

Preferably, the ITO ground wire is bound and connected to the main board ground wire.

On the basis of the traditional structure of glass + OCA + ITO glass + display module, the utility model adds a piece of optical glass to the inner side of the second glass layer, and at the same time prints a whole surface of ITO ground wire on the optical glass, At the same time, the ground wire is bound to the FPC and connected to the main board ground wire. This structure greatly reduces the interference of the lines inside the ITO glass on the display module, and solves the frequent jamming and slow response of touch products. .

The utility model has the beneficial effects: on the basis of the original technology, the utility model only needs to add an optical glass with a silk screen circuit on the surface, which can solve the problem of disconnection of the touch display module produced by the traditional technology. Problems such as stuttering, slow response, and easy interference by the outer frame, using the touch display module provided by the utility model can play a good role in protecting the ITO glass in the touch module, and can greatly improve the life of electronic products , User experience.

Description of drawings

Fig. 1 is a structural schematic diagram of glass+OCA+ITO glass+display module structure in the prior art;

Fig. 2 is a schematic diagram of the structure of the first glass layer + first OCA layer + ITO glass + second OCA layer + second glass layer + display module structure in the specific embodiment of the present invention.

Marking description in the figure

1-first glass layer; 2-first OCA layer; 3-second glass layer; 31-outer ITO glass circuit; 32-inner ITO glass circuit; 4-second OCA layer; 5-third glass layer; 51 -ITO ground wire; 6-display module.

Detailed ways

In order to make the above purpose, features and advantages of the utility model more obvious and understandable, specific embodiments of the utility model will be described in detail below. It should be noted that the following examples are only used to illustrate the implementation method and typical parameters of the utility model, and are not used to limit the parameter range described in the utility model, and the reasonable changes derived from this are still within the rights of the utility model. within the scope of protection required.

In the description of the present utility model, it should be noted that the orientations or The positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the utility model is used, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying Any device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

Referring to Fig. 2, a specific embodiment of a touch display module provided in an embodiment of the present invention includes, from outside to inside: the outermost first glass layer 1, the glass layer connecting the first glass layer 1 and the second glass layer 3 The first OCA layer 2, the second glass layer 3, the second OCA layer 4 connecting the second glass layer 3 and the third glass layer 5, the third glass layer 5 and the innermost display module 6, wherein the third glass layer There is an ITO ground wire 51 on the outer silk screen of layer 5, and the ITO ground wire 51 is bound to the FPC and connected to the main board ground wire.

The outside of the display module 6 of a touch display module provided in this embodiment has an iron outer frame, while the first glass layer 1 and the third glass layer 5 are optical glass, and the first OCA layer 2 and the second OCA layer 4 is OCA optical glue, and the second glass layer 3 is ITO glass. Since the third glass layer 5 is added between the ITO glass and the display module 6, the ITO glass of the second glass layer 3 will not directly contact the display module 6, which avoids the direct contact of the display module 6 with the ITO glass circuit. interference, it is not easy to damage the ITO glass, and at the same time, the third glass layer 5 can also play a buffering role to avoid damage to the touch display module due to collision between the inner ITO glass circuit 32 and the display module.

A touch display module provided in this embodiment has an ITO ground wire 51 on the outside of the third glass layer 5 with silk screen printing on the entire surface. The ITO ground wire 51 is bound to the FPC and connected to the main board ground wire. The ITO ground wire in this embodiment The function of 51 is to lead out the static electricity therein to prevent the display module from interfering with the second glass layer 3 .

The thickness of the third glass layer 5 of the touch display module provided in this embodiment is less than 0.4 mm, that is, the total thickness of the optical glass in the third glass layer 5 and the ITO ground wire 51 silk-screened on the outside is less than 0.4 mm. The thickness of 0.4 mm is extremely small compared to the entire touch display module, which can ensure the user experience while separating the second glass layer 3 and the third glass layer 5 .

The touch display module of this embodiment is improved from the traditional touch display module, and the traditional appearance structure is referred to FIG. 1. FIG. Glass layer 1, first OCA layer 2, second glass layer 3, and display module 6, wherein the first glass layer 1 is optical glass, the first OCA layer 2 is OCA optical glue, and the second glass layer 3 is two-sided cloth The ITO glass with full lines, the outer side is the outer ITO glass line, and the inner side is the inner ITO glass line. When the touch display module with this structure is in use, because the ITO glass is in direct contact with the display module 6, the lines on both sides of the ITO glass It will cause interference to the display module 6. At the same time, some products will use a metal frame, which will cause the touch display module of the product to frequently experience disconnection, freeze, slow response, etc., and shorten the service life of the product.

The difference between the touch display module of this embodiment and the traditional touch display module is that, on the inside of the second glass layer 3, OCA optical glue is used to glue a piece of optical glass with silk screen printing ITO ground wire 51 on the outside as the third glass layer 5, wherein The ITO ground wire 51 is bound to the FPC and connected to the main board ground wire, which prevents the circuit of the second glass layer 3 from directly contacting the display module 6, and at the same time, the ITO ground wire 51 can lead out the current of the ITO glass, reducing the touch display of the electronic device The module may experience disconnection, freeze, and slow response. Simultaneously, the effect of the third glass layer 5 is also to make the display module 6 use a metal outer frame, because there is a barrier of optical glass in the third glass layer 5, the metal outer frame will not contact the display module 6, reducing the The interference of the metal frame on the ITO glass and the display module 6 greatly improves the service life of the product.

Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present utility model.

Claims (7)

1. A touch module, comprising:

touch module and display module assembly (6), display module assembly (6) are located touch module assembly innermost, and touch module assembly adheres to in display module assembly (6) outside, wherein touch module assembly includes first glass layer (1), second glass layer (3), third glass layer (5), first glass layer (1) are located the outside, second glass layer (3) are located first glass layer (1) inboard, third glass layer (5) are located second glass layer (3) inboard, second glass layer (3) upper surface with first glass layer (1) laminating, second glass layer (3) lower surface with third glass layer (5) laminating, first glass layer (1) include optical glass, second glass layer (3) include ITO glass, third glass layer (5) include optical glass, third glass layer (5) outside has ITO glass.

2. A touch module according to claim 1, characterized in that the thickness of the third glass layer (5) is less than 0.4mm.

3. The touch display module according to claim 1, wherein the first glass layer (1) and the second glass layer (3) are connected by an OCA optical adhesive, and the OCA optical adhesive forms a first OCA layer (2).

4. The touch display module according to claim 1, wherein the third glass layer (5) and the second glass layer (3) are connected by an OCA optical adhesive, and the OCA optical adhesive forms a second OCA layer (4).

5. The touch screen module according to claim 1, wherein an outer ITO glass line is provided outside the second glass layer (3), and an inner ITO glass line is provided inside the second glass layer (3).

6. The touch module according to claim 1, wherein the ITO ground line (51) binds an FPC.

7. The touch module of claim 6, wherein the ITO ground (51) is connected to a motherboard ground.

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