CN211180789U

CN211180789U - Touch module and touch display device

Info

Publication number: CN211180789U
Application number: CN201922418313.XU
Authority: CN
Inventors: 王士敏; 朱泽力; 池毓文
Original assignee: Shenzhen Laibao Hi Tech Co Ltd
Current assignee: Shenzhen Laibao Hi Tech Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-04
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a touch module and a touch display device, wherein the touch module comprises a substrate layer, a first electrode layer arranged on the substrate layer, a first insulating layer covered on the first electrode layer, a second electrode layer arranged on the first insulating layer and a second insulating layer covered on the second electrode layer; at least one of the first insulating layer and the second insulating layer is a translucent insulating layer. The utility model provides an at least one is semitransparent insulating layer in touch-control module and touch-control display device's the first insulation layer and the second insulating layer, has effectively reduced the transmissivity of touch-control module, and the colour difference of display area and frame district when reducing to put the screen has effectively improved the outward appearance uniformity when putting the screen.

Description

Touch module and touch display device

Technical Field

The utility model belongs to the technical field of the touch-control, more specifically say, relate to a touch module and touch-control display device.

Background

With the development of touch technology, touch modules are widely applied to touch display devices. The touch display device is generally provided with a display area and a frame area located around the display area, and when the touch display device is turned on, the display area and the frame area are both black. The scheme that a semitransparent film is attached to a touch module to reduce the transparency of a display area is provided at present, but the scheme increases the thickness of the touch module and has poor appearance consistency effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a touch module to there is obvious colour difference, the poor technical problem of outward appearance uniformity effect in the display area and frame district when solving the screen of existing among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme: providing a touch module, which comprises a substrate layer, a first electrode layer arranged on the substrate layer, a first insulating layer covered on the first electrode layer, a second electrode layer arranged on the first insulating layer and a second insulating layer covered on the second electrode layer; at least one of the first insulating layer and the second insulating layer is a translucent insulating layer.

In one embodiment, the first electrode layer and the second electrode layer are both indium tin oxide electrode layers.

In one embodiment, a first shadow eliminating layer is arranged between the first electrode layer and the substrate layer.

In one embodiment, a second shadow layer is disposed between the second electrode layer and the second insulating layer.

In one embodiment, the first and second shadow layers are silicon oxynitride shadow layers.

In one embodiment, the device further comprises a metal lead layer electrically connected with the second electrode layer.

In one embodiment, the first electrode layer and the second electrode layer are both metal mesh electrode layers.

In one embodiment, the translucent insulating layer is a smoke insulating layer.

In one embodiment, the substrate layer is one of a glass substrate layer, a polyethylene terephthalate substrate layer, or a cycloolefin polymer substrate layer.

The utility model also provides a touch-control display device, including above arbitrary item the touch-control module.

Compared with the prior art, the utility model provides a touch module and touch-control display device's at least one in first insulating layer and the second insulating layer is semitransparent insulating layer, and first insulating layer has guaranteed the insulating effect between first electrode layer and the second electrode layer, and the second insulating layer has played the insulating protection effect to the second electrode layer; at least one of the first insulating layer and the second insulating layer is a semitransparent insulating layer, so that the transmittance of the touch module is effectively reduced, the transmittance of a display area of the touch display device can be effectively reduced when the touch module is used for the touch display device, the color difference between the display area and a frame area during screen rejection is reduced, and the appearance consistency during screen rejection is effectively improved; and need not to set up the rete structure in addition, be favorable to controlling touch module's thickness.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced 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 inventive labor.

Fig. 1 is a schematic structural diagram of a touch module according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a touch module according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a touch module according to another embodiment of the present invention;

fig. 4 is a schematic layout view of a first insulating layer according to an embodiment of the present invention;

fig. 5 is a schematic layout view of a second insulating layer according to an embodiment of the present invention;

fig. 6 is a schematic layout diagram of the first insulating layer and the second insulating layer according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1. a substrate layer; 2. a first shadow eliminating layer; 3. a first electrode layer; 4. a first insulating layer; 5. second electrode layer, 6, metal lead layer, 7, second vanishing layer, 8, second insulating layer.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Please refer to fig. 1, which illustrates a touch module according to an embodiment of the present invention; the touch module comprises a substrate layer 1, a first electrode layer 3, a first insulating layer 4, a second electrode layer 5 and a second insulating layer 8, wherein the first electrode layer 3 is arranged on the substrate layer 1, the first insulating layer 4 covers the first electrode layer 3, the second electrode layer 5 is arranged on the first insulating layer 4, and the second insulating layer 8 covers the second electrode layer 5; the first insulating layer 4 is a translucent insulating layer, and the second insulating layer 8 is a transparent insulating layer.

The first electrode layer 3 in the touch module is arranged on the substrate layer 1, and the first insulating layer 4 covering the first electrode layer 3 is a semitransparent insulating layer, so that on one hand, the insulating effect between the first electrode layer 3 and the second electrode layer 5 is ensured, on the other hand, the transmittance of the touch module is effectively reduced, the transmittance of a display area of a touch display device can be effectively reduced when the touch module is used for the touch display device, the color difference between the display area and a frame area during screen saving is reduced, and the appearance consistency during screen saving is effectively improved; and because directly make first insulating layer 8 be semitransparent insulating layer to need not to set up the rete structure in addition, be favorable to controlling touch module's thickness. Specifically, the semi-transparent insulating layer is a smoke insulating layer, and more specifically, the smoke insulating layer includes a transparent insulating layer and carbon powder doped in the transparent insulating layer, so that the semi-transparent effect of the semi-transparent insulating layer is realized, and the property is stable without affecting the first electrode layer 3 and the second electrode layer 5.

Specifically, in the present embodiment, the first electrode layer 3 is an indium tin oxide electrode layer, and more specifically, the first electrode layer 3 is disposed on the substrate layer 1 by a magnetron sputtering process; the second insulating layer 8 is covered on the first electrode layer 3 through a blade coating process; similarly, the second electrode layer 5 is also an indium tin oxide electrode layer, and is disposed on the first insulating layer 4 by a magnetron sputtering process; the second insulating layer 8 is coated on the second electrode layer 5 by a blade coating process.

Specifically, in this embodiment, the first vanishing layer 2 is provided between the first electrode layer 3 and the base material layer 1, and the second vanishing layer 7 is provided between the second electrode layer 5 and the second insulating layer 8. Because the refractive index of the indium tin oxide electrode layer is different from that of the substrate layer 1, the positions where the electrode wires are formed and the positions where the electrode wires are not formed have obvious visual difference, so that the touch module can present indium tin oxide electrode patterns, namely, the bottom shadow of the indium tin oxide electrode layer can be seen, and the appearance consistency effect is influenced. Therefore, the first vanishing layer 2 is arranged between the first electrode layer 3 and the base material layer 1, and the second vanishing layer 7 is arranged between the second electrode layer 5 and the second insulating layer 8, so that the bottom vanishes can be effectively eliminated, and the appearance consistency effect is improved. Specifically, the first and second vanishing

layers

2 and 7 are silicon oxynitride vanishing layers, wherein the first vanishing layer 2 fills a gap between the first electrode layer 3 and the wiring; the second vanishing layer 7 fills the gap of the second electrode layer 5 wiring, thereby effectively solving the bottom shadow problem of the indium tin oxide electrode layer and improving the appearance consistency effect.

Specifically, in this embodiment, the metal lead layer 6 is disposed on the second electrode layer 5, the metal lead layer 6 can be utilized to electrically connect the external driver and the second electrode layer 5, and the metal lead layer 6 has a small resistance, which is beneficial to ensuring the driving effect. Specifically, the substrate layer 1 is a glass substrate layer, but may be a PET (polyethylene terephthalate) substrate layer or a COP (cycloolefin polymer) substrate layer.

Please refer to fig. 2, which shows a touch module according to another embodiment of the present invention, the touch module includes a substrate layer 1, a first electrode layer 3, a first insulating layer 4, a second electrode layer 5 and a second insulating layer 8, the first electrode layer 3 is disposed on the substrate layer 1, the first insulating layer 4 is covered on the first electrode layer 3, the second electrode layer 5 is disposed on the first insulating layer 4, and the second insulating layer 8 is covered on the second electrode layer 5; the first insulating layer 4 is a transparent insulating layer; the second insulating layer 8 is a translucent insulating layer. The second insulating layer 8 is a semitransparent insulating layer, so that on one hand, the insulating protection effect on the second electrode layer 5 is achieved, on the other hand, the transmittance of the touch module is effectively reduced, when the touch module is used for a touch display device, the transmittance of a display area of the touch display device can be effectively reduced, the color difference between the display area and a frame area during screen refreshing is reduced, and the appearance consistency during screen refreshing is effectively improved; and because directly make second insulating layer 8 be semitransparent insulating layer to need not to set up the rete structure in addition, be favorable to controlling touch module's thickness. Of course, in another embodiment, as shown in fig. 3, the first insulating layer 4 may also be a semitransparent insulating layer, and the second insulating layer 8 may also be a semitransparent insulating layer, so as to reduce the transmittance of the touch module, reduce the color difference between the display area and the frame area during screen refreshing, and improve the effect of appearance consistency.

Please refer to fig. 4, which shows a touch module according to another embodiment of the present invention, the touch module includes a substrate layer 1, a first electrode layer 3, a first insulating layer 4, a second electrode layer 5 and a second insulating layer 8, wherein the first electrode layer 3 and the second electrode layer 5 are metal grid electrode layers, the first insulating layer 4 covering on the first electrode layer 3 is a semitransparent insulating layer, and the second insulating layer 8 covering on the second electrode layer 5 is a transparent insulating layer. The first electrode layer 3 and the second electrode layer 5 are both metal grid electrode layers, and have the advantages of low resistance, high response speed and good flexibility; the first insulating layer 4 is a semitransparent insulating layer, so that the transmittance of a display area of the touch display device can be effectively reduced, the color difference between the display area and a frame area during screen rejection is reduced, and the appearance consistency during screen rejection is effectively improved; and because directly make first insulating layer 4 be semitransparent insulating layer, need not to set up the membranous layer structure in addition, be favorable to controlling touch module's thickness. Of course, in another embodiment, as shown in fig. 5, the first insulating layer 4 may be a transparent insulating layer, and the second insulating layer 8 may be a translucent insulating layer. As shown in fig. 6, it is also possible to make both the first insulating layer 4 and the second insulating layer 8 translucent insulating layers; the touch module has the advantages that the transmittance of the touch module is reduced, the color difference between the display area and the frame area during screen refreshing is reduced, and the appearance consistency effect is improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A touch module is characterized by comprising a substrate layer, a first electrode layer arranged on the substrate layer, a first insulating layer covered on the first electrode layer, a second electrode layer arranged on the first insulating layer and a second insulating layer covered on the second electrode layer; at least one of the first insulating layer and the second insulating layer is a translucent insulating layer.

2. The touch module of claim 1, wherein the first electrode layer and the second electrode layer are both indium tin oxide electrode layers.

3. The touch module of claim 2, wherein a first shadow removal layer is disposed between the first electrode layer and the substrate layer.

4. The touch module of claim 3, wherein a second shadow removal layer is disposed between the second electrode layer and the second insulating layer.

5. The touch module of claim 4, wherein the first and second shadow-eliminating layers are silicon oxynitride shadow-eliminating layers.

6. The touch module of claim 2, further comprising a metal lead layer electrically connected to the second electrode layer.

7. The touch module of claim 1, wherein the first electrode layer and the second electrode layer are both metal mesh electrode layers.

8. The touch module of claim 1, wherein the semi-transparent insulating layer is a smoke insulating layer.

9. The touch module of claim 1, wherein the substrate layer is one of a glass substrate layer, a polyethylene terephthalate substrate layer, or a cyclic olefin polymer substrate layer.

10. A touch display device comprising the touch module of any one of claims 1-9.