TWI673637B - Touch display device - Google Patents

Abstract

A touch display device includes a display module, a frame, a transparent substrate, an auxiliary colloid, and a touch module. The display module can be powered and operate independently. The frame has a ring covering part and an upper covering part, the ring covering part covers the periphery of the display module, the upper covering part covers a part of the display surface of the display module, and the upper covering part and the display surface are formed together Receiving slot. The light-transmitting substrate is adhered to the display surface through the first optical adhesive, and a part of the light-transmitting substrate is protruded from the upper covering portion, and the upper covering portion is provided with an auxiliary colloid. The touch module is connected to one side of the light-transmitting substrate through the second optical glue, and the touch module is connected to the frame through the auxiliary gel.

Description

Touch display device

The invention relates to a touch display device, in particular to an industrial touch display device.

In order to meet the requirements of the industrial environment, the existing industrial touch display devices are far more expensive than the touch display devices of general consumer lines. For this reason, for related manufacturers, how to effectively reduce the manufacturing cost of the overall industrial touch display device is a problem that needs to be solved. For this reason, the present inventor has devoted himself to studying and cooperating with the application of theories to propose a present invention with a reasonable design and effective improvement of the above problems.

The main purpose of the present invention is to provide a touch display device and a display device, which are used to improve the problem of high manufacturing cost of the touch display device in the prior art.

In order to achieve the above object, the present invention provides a touch display device, which includes a display module, a frame, a light-transmitting substrate, at least one auxiliary colloid, and a touch module. The display module can be operated independently by being powered. The display module has a display surface, and a side of the display module opposite to the display surface is defined as a bottom surface; wherein the display module is powered and During operation, the display surface can present a display screen. A frame is fixedly disposed on the periphery of the display module, the frame includes a ring covering portion and an upper covering portion, and the ring covering portion surrounds and surrounds the periphery of the display module. An upper covering portion is connected to the ring covering portion, the upper covering portion is correspondingly located on one side of the display surface of the display module, and the upper covering portion and the display surface together form a container. Set slot. The light-transmitting substrate is attached to the place through a first optical adhesive. The display surface, the light-transmitting substrate is correspondingly located in the accommodating groove, and a part of the light-transmitting substrate away from the display surface is a top surface of the upper cladding portion, the A top surface is located on a side of the upper cladding portion away from the display surface; the light-transmitting substrate is in a normal direction of the display surface, and the height from the top surface is defined as a predetermined height; The transparent substrate is not formed by curing the optical glue. At least one auxiliary colloid is disposed on the top surface, and the thickness of the auxiliary colloid in a normal direction of the display surface is greater than or equal to the predetermined height. The touch module is attached on a side of the light-transmitting substrate away from the display module through a second optical adhesive, and the touch module is attached on the top surface through the auxiliary colloid. The upper cladding portion, the light-transmitting substrate, and the display module are correspondingly located in a range of an orthographic projection of the touch-control module facing the light-transmitting substrate side; the touch-control module The percentage difference between the refractive index of and the refractive index of the light-transmitting substrate is between 0.1% and 5%.

In order to achieve the above object, the present invention provides a touch display device, which includes: a display module, a frame, a light-transmitting substrate, a first indium tin oxide layer, at least a second optical adhesive, and a touch screen. Module. The display module can be operated independently by being powered. The display module has a display surface, and the side of the display module opposite to the display surface is defined as a bottom surface. When the display module is powered and operates, the display surface can present a Display screen. The frame is fixedly disposed on the periphery of the display module. The frame includes a ring covering portion and an upper covering portion. The ring covering portion surrounds and surrounds the periphery of the display module. Connected, the upper covering portion is correspondingly located on one side of the display surface of the display module, and the upper covering portion and the display surface together form an accommodating groove. The light-transmitting substrate is disposed on the display surface through a first optical adhesive, and the light-transmitting substrate is correspondingly located in the accommodating groove, and the part of the light-transmitting substrate away from the display surface is high because the upper covering portion is away from the display. A top surface of the surface; the light-transmitting substrate is in the normal direction of the display surface, and the height above the top surface is defined as a predetermined height. The first indium tin oxide layer is formed on a side of the light-transmitting substrate facing the display surface or a side remote from the display surface. At least one second optical adhesive is disposed on the top surface, and the thickness of the second optical adhesive in a normal direction of the display surface is greater than or equal to a predetermined height. The touch module is attached to a side of the light-transmitting substrate away from the display module through a second optical adhesive, and the touch module is transparent. The second optical glue is attached to the top surface; the upper covering part, the light-transmitting substrate, and the display module correspond to the range of the orthographic projection located on the side of the touch-control module facing the light-transmitting substrate; the touch module includes There is a second indium tin oxide layer. The first indium tin oxide layer and the second indium tin oxide layer can cooperate with each other to generate an X-axis position signal and a Y-axis position signal when the touch module is touched. The percentage difference between the refractive index of the module and the refractive index of the transparent substrate is between 0.1% and 5%.

The beneficial effect of the present invention can be that the touch display device of the present invention can greatly reduce the use amount of the high-cost optical adhesive through the arrangement of the light-transmitting substrate, thereby greatly reducing the manufacturing cost of the overall touch display device.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description of the present invention and the accompanying drawings, but the drawings are provided for reference and explanation only, and are not intended to limit the present invention.

A‧‧‧Touch display device

10‧‧‧Display Module

101‧‧‧display surface

102‧‧‧ underside

20‧‧‧Frame

201‧‧‧Ring Cover

202‧‧‧ Upper cladding section

2021‧‧‧Top

202a‧‧‧Inner edge

203‧‧‧ bottom coating

30‧‧‧Electrical connection module

31‧‧‧electrical connector

32‧‧‧Circuit Board

40‧‧‧ Transparent substrate

40a‧‧‧Rim

50‧‧‧The first optical glue

60‧‧‧ auxiliary colloid

70‧‧‧Touch Module

80‧‧‧Second Optical Adhesive

90‧‧‧ Third Optical Adhesive

100‧‧‧Functional Parts

110‧‧‧First indium tin oxide layer

120‧‧‧Second indium tin oxide layer

S‧‧‧ scheduled gap

Sa‧‧‧ Circular groove

SP‧‧‧Receiving slot

D1‧‧‧thickness

D2‧‧‧thickness

D3‧‧‧thickness

D4‧‧‧ Depth

D5‧‧‧thickness

H1‧‧‧ height

W1‧‧‧Width

W2‧‧‧Width

W3‧‧‧ Distance

FIG. 1 is a schematic diagram of a touch display device of the present invention.

FIG. 2 is a schematic diagram of another aspect of the touch display device of the present invention.

FIG. 3 is a schematic cross-sectional view of a first embodiment of the touch display device of the present invention, taken along a section line III shown in FIG. 1.

FIG. 4 is an exploded view of the touch display device of the present invention.

FIG. 5 is a schematic cross-sectional view of a second embodiment of a touch display device according to the present invention.

FIG. 6 is a schematic cross-sectional view of a third embodiment of a touch display device according to the present invention.

FIG. 7 is another schematic cross-sectional view of a third embodiment of a touch display device according to the present invention.

FIG. 8 is a schematic cross-sectional view of a fourth embodiment of a touch display device according to the present invention.

FIG. 9 is a schematic cross-sectional view of a fifth embodiment of a touch display device according to the present invention.

FIG. 10 is a schematic cross-sectional view of a sixth embodiment of a touch display device according to the present invention.

11 is a schematic cross-sectional view of a seventh embodiment of a touch display device according to the present invention.

The following is a description of the implementation of the touch display device of the present invention with specific specific examples. Those skilled in the art can easily understand the contents disclosed in this specification. Discover other advantages and effects of the present invention. The present invention can also be implemented or applied through other different specific examples, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention. In addition, the drawings of the present invention are only for simple description, and are not drawn according to the actual size, that is, the actual size of the relevant structure is not reflected, and it will be described first. The following embodiments describe the viewpoints of the present invention in more detail, but do not limit the scope of the present invention in any way. In the following description, if there is any reference, please refer to the specific drawing or as shown in the specific drawing, it is only used to emphasize in the subsequent description, most of the related content mentioned in the specific drawing, However, it is not limited to refer to the specific drawings in the subsequent description.

Please refer to FIG. 1 to FIG. 4 together. FIG. 1 is a schematic view of a touch display device of the present invention; FIG. 2 is a schematic view of the touch display device of the present invention from another angle; The first embodiment of the display device is a schematic cross-sectional view taken along the line III in FIG. 1; FIG. 4 is an exploded view of the touch display device of the present invention. The touch display device A includes a display module 10, a frame 20, an electrical connection module 30, a transparent substrate 40, a first optical adhesive 50, an auxiliary colloid 60, a touch module 70, and at least一 second optical glue 80.

The display module 10 can be operated independently by being powered. The display module 10 has a display surface 101, and a side of the display module 10 opposite to the display surface 101 is defined as a bottom surface 102. Wherein, when the display module 10 is powered and operated, the display surface 101 can present a display screen. In a specific application, the display module 10 may be independently manufactured, sold, or the display module 10 may also be sold through simple assembly. In practical applications, the display module 10 may be a rectangular cube or a regular cube, which is not limited herein, and the size of the display module 10 may be changed according to requirements.

The frame body 20 is fixedly disposed on the periphery of the display module 10. The frame body 20 includes a ring covering portion 201 and an upper covering portion 202. The ring covering portion 201 surrounds the periphery of the display module 10 and covers the upper portion. The portion 202 is connected to the ring covering portion 201, the upper covering portion 202 is correspondingly located on the display module 10 side with the display surface 101, and the upper covering portion 202 and the display surface 101 together form a receiving slot SP (as shown in FIG. 4).

The display module 10 can have a better protection effect through the covering of the frame body 20, and can be particularly applied to an industrial environment; in other words, the touch display device A of the present invention is covered by the outside of the display module 10 Since the frame 20 is provided, the display module 10 will not be easily damaged by the external environment, and the service life of the touch display device A can be greatly improved. In practical applications, the material of the frame 20 may be metal, plastic, etc. according to requirements, which is not limited herein.

As shown in FIG. 2, the electrical connection module 30 may include an electrical connector 31 and a circuit board 32. The electrical connector 31 is disposed on the circuit board 32, and the circuit board 32 may be provided with other auxiliary devices. Electronic components operated by the display module 10. The display module 10 can be electrically connected to an external control device (such as an industrial computer) through the electrical connector 31 to receive power and image signals provided by the external control device; in other words, the external control device can be The connecting wire is electrically connected to the electrical connector 31 and controls the display module 10 to operate accordingly. In the figure of this embodiment, it is taken that the electrical connection module 30 includes a single electrical connector 31 as an example, but the number of the electrical connectors 31 is not limited to this, and can be increased according to demand; In addition, regarding the electrical connection The installation position of the device 31 may also be changed according to requirements, and is not limited to being disposed on one side of the bottom covering portion 203 (described in detail later). In the embodiment in which the frame body 20 does not include the bottom covering portion 203, the frame body 20 and the display module 10 may be closely fitted and fixed to each other, and the frame body 20 and the display module 10 may also be fitted with tape or the like. The fixing members strengthen the connection strength between each other.

It is specifically stated that, in practical applications, the display module 10 and the frame body 20 can be manufactured and sold in groups, and related manufacturers can directly assemble the frame body 20 and the display module 10 according to requirements and apply Among the required products, the display module 10 covered with the frame 20 may be directly sold.

As shown in FIG. 3 and FIG. 4, the light-transmitting substrate 40 is attached to the display surface 101 through a first optical adhesive 50. The light-transmitting substrate 40 is correspondingly located in the accommodating slot SP, and the light-transmitting substrate 40 A portion away from the display surface 101 is a top surface 2021 of the upper covering portion 202 away from the display surface 101. The light transmitting substrate 40 may be any light transmitting Structure, of course, the light-transmitting substrate 40 must be able to allow relevant persons to view the display screen displayed by the display module 10 on the display surface 101 from the side of the light-transmitting substrate 40 opposite to the display surface 101; for example The transparent substrate 40 may be glass, optical plastic (such as PMMA), or a combination of glass and optical plastic, and the like is not limited herein. The first optical adhesive 50 is, for example, a solid transparent optical adhesive OCA (optically clear adhesive) or a liquid transparent optical adhesive OCR (Optically Clear Resin), which is not limited herein. In particular, the light-transmitting substrate 40 referred to herein is not a cured optical adhesive. On the contrary, the present invention uses the light-transmitting substrate 40 instead of the optical adhesive to reduce the cost of the optical adhesive. This reduces the overall manufacturing cost of the touch display device A.

The top surface 2021 of the frame body 20 is provided with an auxiliary colloid 60. In a specific implementation, the auxiliary colloid 60 may be a solid glue including two release papers. In practical applications, the auxiliary colloid 60 basically covers the entire top surface 2021.

The touch module 70 is attached to the light-transmitting substrate 40 on the side opposite to the display surface 101 through a second optical adhesive 80, and the touch module 70 is simultaneously connected to the frame 20 through the auxiliary gel 60. connection. In other words, the touch module 70 is fixed to the transparent substrate 40 and the frame 20 through the second optical glue 80 and the auxiliary glue 60. Wherein, the upper cladding portion 202, the light-transmitting substrate 40, and the display module 10 are in a range corresponding to the orthographic projection of the touch module 70 facing the light-transmitting substrate 40 side, that is, the touch module 70 is The whole cover is disposed on one side of the frame body 20 and the display module 10, and the light-transmitting substrate 40 and the display surface 101 are both shielded by the touch module 70.

In particular, the refractive index of the light-transmitting substrate 40 is substantially the same as the refractive index of the touch panel of the touch module 70. In this way, relevant persons pass through the light-transmitting substrate from one side of the touch module 70. When the material 40 views the display screen displayed on the display surface 101, there will be no afterimage or other related image presentation problems. In practical applications, the percentage difference between the refractive index of the touch module 70 and the refractive index of the transparent substrate may be between 0.1% and 5%.

As shown in Figure 4, in the actual manufacturing process, the relevant manufacturers can be the first The second optical glue 80 is used to fix the light-transmitting substrate 40 on one side of the touch module 70; the auxiliary gel 60 is disposed on the top surface 2021 of the frame 20; finally, the light-transmitting substrate 40 is opposite to the touch The first optical adhesive 50 is coated or attached on one side of the control module 70, and the related optical equipment (such as various types of vacuum filming equipment) is used to make the transparent substrate 40 pass through the first optical adhesive 50 and be attached to On the display surface 101. In special applications, the first optical adhesive 50 can also be coated or attached to the display surface 101, and then the related mechanical equipment can be used to make the transparent substrate 40 pass through the first optical adhesive 50 and cover the frame. The display modules 10 of 20 are connected to each other.

In practical applications, the auxiliary colloid 60 is, for example, solid glue. When the solid glue is used as the auxiliary glue 60, the solid glue may have two release papers, and the relevant personnel or mechanical equipment may first tear off one of the release papers. In order to expose the adhesive layer of the solid glue, the top surface 2021 (as shown in FIG. 3) of the upper covering portion 202 is attached, and then, a person or a mechanical device wants to set a transparent substrate 40 When the touch module 70 and the display module 10 covered with the frame body 20 are connected to each other, another release paper of the auxiliary colloid 60 can be removed again. Of course, in different embodiments, the auxiliary colloid 60 may also be a liquid gel, which is not limited herein.

It should be noted that the thickness D1 of the auxiliary colloid 60 attached to the top surface 2021 of the upper covering portion 202 in the normal direction of the display surface 101 (as shown in the coordinate system Z axis direction shown in FIG. 3) is The height H1 is higher than the light-transmitting substrate 40 by the top surface 2021 of the upper cladding portion 202. That is, assuming that the normal direction of the transparent substrate 40 on the display surface 101 is higher than the height of the top surface 2021 of the frame 20 as a predetermined height, the thickness of the auxiliary colloid 60 in the normal direction of the display surface 101 D1 is greater than or equal to the predetermined height.

It is worth mentioning that the sum of the thickness D2 of the transparent substrate 40 in the normal direction of the display surface 101 and the thickness D3 of the first optical adhesive 50 in the normal direction of the display surface 101 is less than or equal to the auxiliary colloid 60 on the display. The sum of the thickness D1 in the normal direction of the surface 101 and the depth D4 of the receiving groove SP in the normal direction of the display surface 101; expressed by a mathematical formula: D2 + D3 ≦ D1 + D4. For example, the transparent substrate 40 is on the display surface 101 The thickness D2 in the direction of the normal line is greater than or equal to 0.1 mm. The thickness D1 of the auxiliary colloid 60 in the direction of the normal line of the display surface 101 is between 0.05 mm and 1.0 mm. The receiving slot SP (as shown in FIG. 4) is The depth D4 in the normal direction of the display surface 101 is greater than or equal to 0.1 mm.

The sum of the thickness D2 of the transparent substrate 40 in the normal direction of the display surface 101 and the thickness D5 of the second optical adhesive 80 in the normal direction of the display surface 101 are less than or equal to the normal of the receiving slot SP on the display surface 101. The sum of the depth D4 in the direction and the thickness D1 of the auxiliary colloid 60 in the normal direction of the display surface 101; expressed in mathematical formulas: D2 + D5 ≦ D4 + D1. For example, the thickness D2 of the transparent substrate 40 in the normal direction of the display surface 101 is greater than or equal to 0.1 mm, and the thickness D5 of the second optical adhesive 80 in the normal direction of the display surface 101 is between 0.05 mm and 1.0. The depth D4 of the containing groove SP in the normal direction of the display surface 101 is greater than or equal to 0.1 mm.

The sum of the thickness D2 of the light-transmitting substrate 40 in the normal direction of the display surface 101 and the thickness D5 of the second optical adhesive 80 in the normal direction of the display surface 101 are greater than or equal to the normal of the receiving slot SP on the display surface 101. The depth D4 in the direction; expressed in mathematical formula: D2 + D5 ≧ D4. For example, the thickness D2 of the transparent substrate in the normal direction of the display surface 101 is greater than or equal to 0.1 mm.

In particular, in actual application, the production error of the depth D4 of the accommodation groove SP formed by the display surface 101 and the frame 20 together with the thickness D2 of the transparent substrate 40 in the normal direction of the display surface 101 It is almost the same. Therefore, if the thickness D2 of the light-transmitting substrate 40 is the same as the depth D4 of the receiving groove SP in the production process, the production of the light-transmitting substrate 40 is carried out. The problem that the light base material 40 cannot be correctly placed in the accommodation slot SP may cause the touch module 70 to be unable to fit flatly on the side of the display module 10 covered with the frame body 20; therefore, The touch display device A of the present invention is designed to protrude from the top surface 2021 of the frame body 20 when the light-transmitting substrate 40 is set in the accommodating slot SP through the foregoing, which can effectively avoid the above-mentioned problems.

It is worth mentioning that in FIG. 4, the auxiliary colloid 60 is used as an example of the solid glue, and The auxiliary colloid 60 is generally annular, but the shape and number of the auxiliary colloid 60 are not limited thereto. For example, the auxiliary colloid 60 may also have four strip-shaped structures, which are correspondingly attached to the top surface 2021 of the upper covering portion 202. In this way, relevant manufacturers may base on the transparent substrate 40, the display surface 101, and the frame body. The surface flatness of the surface 20 is adjusted, and the thickness of the auxiliary colloid 60 disposed at different positions is adjusted, so that the surface for the user to operate the touch module 70 is substantially parallel to the display surface 101.

As shown in FIG. 5, it is a schematic cross-sectional view of a second embodiment of the touch display device according to the present invention (roughly a schematic view taken along the line III of FIG. 1). In different applications, the frame 20 may further include a bottom covering portion 203 and an electrical connection module 30. The bottom covering portion 203 is connected to the ring covering portion 201, and the bottom covering portion 203 covers the display module. 10 at the bottom. The ring covering portion 201, the upper covering portion 202, and the bottom covering portion 203 may be integrally formed members, and are covered and disposed outside the display module 10 through related forming steps. Wherein, in the embodiment in which the frame body 20 does not have the bottom cladding portion 203, the whole of the frame body 20 will be similar to a hollow rectangular body, and in the embodiment in which the frame body 20 has the bottom cladding portion 203, the frame The body 20 as a whole will appear as a rectangular body with a cavity recessed on one side.

Please refer to FIG. 6 and FIG. 7 together. FIG. 6 is a schematic cross-sectional view of a third embodiment of the touch display device according to the present invention (approximately a cross-sectional view taken along the line III of FIG. 1), FIG. 7 It is a schematic cross-sectional view in another direction of the third embodiment of the touch display device of the present invention. As shown in the figure, the biggest difference between this embodiment and the foregoing embodiment is that a predetermined gap S may be formed between the outer edge 40a of the light-transmitting substrate 40 and the inner edge 202a of the upper cladding portion 202; that is, The width W1 of the light-transmitting substrate 40 on a cross-sectional plane perpendicular to the normal direction of the display surface 101 (such as the ZY plane of the coordinate system shown in the figure) is smaller than the method of the accommodation groove SP perpendicular to the display surface 101. The width W2 of the cross-sectional plane in the line direction.

As shown in FIG. 7, when the touch module 70 provided with the light-transmitting substrate 40 and the frame 20 are fixed to each other, and the light-transmitting substrate 40 is correspondingly located in the accommodation slot SP, the accommodation slot SP will not be The light-transmitting substrate 40 is filled, and the touch module 70 and the display surface 101 An annular groove Sa will be retained; in practical applications, it can also be formed with corresponding strip grooves that are not connected to each other, instead of being limited to annular grooves; the design of the annular groove Sa will make the light-transmitting substrate There is room for expansion when heated. In other words, in the embodiment without the design of the predetermined gap, if the touch display device A is in a high-temperature state for a long time, the light-transmitting substrate 40 may expand against the top frame 20 after thermal expansion, which may cause the frame. 20 or the display module 10 is destroyed. In addition, through the design of the reserved gap S or the annular groove Sa described above, when the light-transmitting substrate 40 has an unexpected production tolerance, it can still be set in the containing groove SP (as shown in FIG. 4). Chance. In practical applications, the distance W3 between the outer edge 40a of the light-transmitting substrate 40 and the inner edge 202a of the upper cladding portion 202 may be less than or equal to 0.3 mm; of course, the outer edge 40a of the light-transmitting substrate 40 and The distance between the inner edges 202 a of the upper cladding portion 202 may be changed according to the size of the touch display device A.

Please refer to FIG. 8, which is a schematic diagram of a fourth embodiment of a touch display device according to the present invention. As shown in the figure, the biggest difference between this embodiment and the foregoing embodiment is that the touch display device A may also include a plurality of light-transmitting substrates 40, and the plurality of light-transmitting substrates 40 may be transmitted through a first The three optical adhesives 90 are connected to each other, and a plurality of transparent substrates 40 connected to each other are fixedly disposed between the touch module 70 and the display surface 101, and at least a part of at least one of the transparent substrates 40 is higher于 Top surface 2021. The third optical adhesive 90 may be, for example, a liquid transparent optical adhesive OCR (Optically Clear Resin) or a solid transparent optical adhesive OCA (optically clear Adhesive), which is not limited herein.

In practical applications, the relevant manufacturer (for example, the manufacturer that attaches the touch module 70 to the display module) can be a light-transmitting substrate 40 with different thicknesses, and the relevant manufacturer can display the display in the receiving slot SP. When the depth D4 in the normal direction of the surface 101 is deeper than the expected depth, the third optical adhesive 90 is added to additionally add a light-transmitting substrate 40 with a similar thickness. In another practical application, the relevant manufacturer may also determine the quantity of the light-transmitting substrate 40 based on the depth D4 of the containing groove SP in the normal direction.

In other words, through the design of multiple transparent substrates 40, relevant manufacturers can Place the slot SP at a depth D4 in the normal direction of the display surface 101, and adaptively adjust the number of the light-transmitting substrate 40, thereby ensuring that the light-transmitting substrate 40 can be reliably connected to the touch module 70 and the display surface 101. The connection can avoid the problem that a large amount of optical glue is used to ensure that the light-transmitting substrate 40 can be in contact with the display surface 101, which leads to a significant increase in cost.

In the actual production and manufacturing process, the depth D4 of the containing groove SP in the normal direction of the display surface 101 may be different from that originally expected due to various reasons, such as the production tolerance of the frame 20 and the production tolerance of the display module 10. The depths are not the same. So if the original transparent substrate 40 is connected to the display module 10 coated with the frame 20, an air layer may be formed between the transparent substrate 40 and the display surface 101. When the user views the display screen displayed on the display surface 101 through the touch module 70, he will see problems such as ghost images; therefore, through the design of the plurality of light-transmitting substrates 40 in this embodiment, it will be effective Avoid problems such as ghosting.

Please refer to FIG. 9, which is a schematic diagram of a fifth embodiment of a touch display device according to the present invention. As shown in the figure, the biggest difference between this embodiment and the foregoing embodiments is that a functional member 100 may be provided between the light-transmitting substrate 40 and the display surface 101. The functional member 100 may be an anti-electromagnetic interference sheet, One of a polarizer and a privacy filter. Of course, in practical applications, the functional component 100 may be disposed between the light-transmitting substrate 40 and the touch module 70.

Please refer to FIG. 10, which is a schematic diagram of a sixth embodiment of a touch display device according to the present invention. As shown in the figure, the biggest difference between this embodiment and the foregoing embodiment is that the touch display device A may further include a first indium tin oxide layer 110 and a second indium tin oxide layer 120. The first indium tin oxide layer 110 may be formed on a side of the light-transmitting substrate 40 facing the display surface 101, the second indium tin oxide layer 120 may be formed in the touch module 70, and the first indium tin oxide The layer 110 and the second indium tin oxide layer 120 can cooperate with each other to generate X-axis coordinate information and Y-axis coordinate information correspondingly when the touch module 70 is operated. In other words, the light-transmitting substrate 40 and the first indium tin oxide layer 110 in combination with the touch module 70 can be used as a touch device with a complete control function.

Please refer to FIG. 11, which is a schematic diagram of a seventh embodiment of the touch display device of the present invention. As shown in the figure, the biggest difference between this embodiment and the foregoing embodiment is that the first indium tin oxide layer 110 may also be formed on a side of the light-transmitting substrate 40 away from the display surface 101, and the first indium tin oxide layer 110 is correspondingly located between the light-transmitting substrate 40 and the second optical adhesive 80. Specifically, in the manufacturing process, the first indium tin oxide layer 110 may be formed before one side of the light-transmitting substrate 40, and then the second optical adhesive 80 may be used to make the transmission of the first indium tin oxide layer 110 transparent. The light substrate 40 and the touch module 70 are adhered to each other. Of course, the first indium tin oxide layer 110 and the second indium tin oxide layer 120 included in the light-transmitting substrate 40 and the touch module 70 which are adhered to each other are located opposite to each other, and the two can be The interaction is such that when the touch module 70 is operated, the X-axis coordinate information and the Y-axis coordinate information are correspondingly generated. In different applications, when the touch module 70 is operated, the first indium tin oxide layer 110 may also generate Y-axis coordinate data, and the second indium tin oxide layer 120 may also generate X-axis coordinate data.

In summary, the existing industrial touch display device has a large material cost from the optical adhesive, and the touch display device of the present invention can effectively reduce the The amount of use can greatly reduce the overall manufacturing cost of the touch display device. In addition, in the existing industrial touch display devices, a large number of optical water glues are used to connect related components. However, since the thickness of the optical water glue is not easy to control, similar water ripples (Mura) tend to appear in the final product. The touch display device of the present invention can greatly reduce the probability of occurrence of water ripple defects through the arrangement of the light-transmitting substrate.

The above are only the preferred and feasible embodiments of the present invention, and therefore do not limit the patent scope of the present invention. Therefore, any equivalent technical changes made using the description and drawings of the present invention are included in the protection scope of the present invention. .

Claims (10)

A touch display device includes a display module that can be independently operated by being powered. The display module has a display surface, and a side of the display module opposite to the display surface is defined as a The bottom surface; wherein, when the display module is powered and operated, the display surface can present a display screen; a frame fixedly arranged on the periphery of the display module, the frame including a ring covering And an upper cladding portion, the ring cladding portion surrounds the periphery of the display module, the upper cladding portion is connected to the ring cladding portion, and the upper cladding portion is correspondingly located at One side of the display surface of the display module, and the upper cladding portion and the display surface together form an accommodating groove; a light-transmitting substrate, which is disposed on the first surface through a first optical adhesive. A display surface, the light-transmitting substrate is correspondingly located in the accommodating groove, and a portion of the light-transmitting substrate away from the display surface is a top surface of the upper cladding portion; A top surface is located on a side of the upper cladding portion away from the display surface; the light-transmitting substrate is on the display surface In the normal direction, the height above the top surface is defined as a predetermined height; wherein the light-transmitting substrate is not formed by curing the optical glue; at least one auxiliary colloid is provided on the top surface, and the auxiliary The thickness of the colloid in the normal direction of the display surface is greater than or equal to the predetermined height; and a touch module, which is attached to the light-transmitting substrate away from the display module through a second optical adhesive. And the touch module is attached to the top surface through the auxiliary colloid; the upper cladding part, the light-transmitting substrate, and the display module are correspondingly located on the touch screen. In the range of the orthographic projection of the module facing the side of the light-transmitting substrate; the percentage difference between the refractive index of the touch module and the refractive index of the light-transmitting substrate is 0.1% To five percent Wherein, a predetermined gap is formed between the outer edge of the light-transmitting substrate and the inner edge of the upper cladding portion, and between the outer edge of the light-transmitting substrate and the inner edge of the upper cladding portion The distance is less than or equal to 0.3 mm. The touch display device according to claim 1, wherein a thickness of the transparent substrate in a normal direction direction of the display surface and a thickness of the first optical adhesive in a normal direction direction of the display surface The sum is less than or equal to the sum of the thickness of the auxiliary colloid in the normal direction of the display surface and the depth of the receiving groove in the normal direction of the display surface; The thickness in the normal direction of the display surface is greater than or equal to 0.1 mm, the thickness of the auxiliary colloid in the normal direction of the display surface is between 0.05 mm and 1.0 mm, and the accommodation groove is in the display. The depth in the normal direction of the face is greater than or equal to 0.1 mm. The touch display device according to claim 1, wherein a thickness of the transparent substrate in a normal direction direction of the display surface and a thickness of the second optical adhesive in a normal direction direction of the display surface The sum is less than or equal to the sum of the depth of the containing groove in the normal direction of the display surface and the thickness of the auxiliary colloid in the normal direction of the display surface; The thickness in the normal direction of the display surface is greater than or equal to 0.1 mm, the thickness of the auxiliary colloid in the normal direction of the display surface is between 0.05 mm and 1.0 mm, and the accommodation groove is in the display. The depth in the normal direction of the face is greater than or equal to 0.1 mm. The touch display device according to claim 1, wherein the touch display device includes a plurality of the light-transmitting substrates, and the plurality of the light-transmitting substrates are connected to each other through a third optical glue, A plurality of the light-transmitting substrates connected to each other are disposed in the accommodating groove, and a part of at least one of the light-transmitting substrates is high from the top surface. The touch display device according to claim 1, wherein the frame further includes a bottom covering portion and an electrical connection module, the bottom covering portion is connected to the ring covering portion, and The bottom covering part covers the bottom of the display module, the electrical connection module includes at least one electrical connector, and the display module can be electrically connected to an external control device through the electrical connector to receive Power and image signals from an external control device; a functional component is provided between the transparent substrate and the display surface or between the transparent substrate and the touch module, and the function The piece is one of an anti-electromagnetic interference sheet, a polarizing sheet, and a privacy sheet. A touch display device includes a display module that can be independently operated by being powered. The display module has a display surface, and a side of the display module opposite to the display surface is defined as a A bottom surface; wherein, when the display module is powered and operated, the display surface can present a display screen; a frame body is fixedly disposed on the periphery of the display module, and the frame body includes a ring covering part and An upper cladding portion, the ring cladding portion is wrapped around the periphery of the display module, the upper cladding portion is connected to the ring cladding portion, and the upper cladding portion is correspondingly located in the One side of the display surface of the display module, and the upper cladding portion and the display surface together form an accommodating groove; a light-transmitting substrate, which is disposed on the display surface through a first optical adhesive. The light-transmitting substrate is correspondingly located in the accommodating groove, and a part of the light-transmitting substrate far from the display surface is a top surface of the upper cladding portion far from the display surface ; The normal direction of the transparent substrate to the display surface is higher than the height definition of the top surface; A predetermined height; a first indium tin oxide layer formed on a side of the light-transmitting substrate facing the display surface or a side remote from the display surface; at least a second optical glue disposed on the side A top surface, a thickness of the second optical glue in a normal direction of the display surface is greater than or equal to the predetermined height; A touch module is disposed on a side of the light-transmitting substrate away from the display module via a second optical adhesive, and the touch module is disposed on the second optical adhesive. On the top surface; the upper cladding portion, the light-transmitting substrate, and the display module are correspondingly located in a range of an orthographic projection of the touch module toward the light-transmitting substrate side; The touch module includes a second indium tin oxide layer, and the first indium tin oxide layer and the second indium tin oxide layer can cooperate with each other, so that when the touch module is touched, a corresponding generation occurs. X-axis position signal and Y-axis position signal; the percentage difference between the refractive index of the touch module and the refractive index of the transparent substrate is between 0.1% and 5%; A predetermined gap is formed between the outer edge of the light-transmitting substrate and the inner edge of the upper cladding portion, and the distance between the outer edge of the light-transmitting substrate and the inner edge of the upper cladding portion Less than or equal to 0.3 mm. The touch display device according to claim 6, wherein a thickness of the transparent substrate in a normal direction direction of the display surface and a thickness of the first optical adhesive in a normal direction direction of the display surface The sum is less than or equal to the sum of the thickness of the auxiliary colloid in the normal direction of the display surface and the depth of the receiving groove in the normal direction of the display surface; The thickness in the normal direction of the display surface is greater than or equal to 0.1 mm, the thickness of the auxiliary colloid in the normal direction of the display surface is between 0.05 mm and 1.0 mm, and the accommodation groove is in the display. The depth in the normal direction of the face is greater than or equal to 0.1 mm. The touch display device according to claim 6, wherein a thickness of the transparent substrate in a normal direction direction of the display surface and a thickness of the second optical adhesive in a normal direction direction of the display surface The sum is less than or equal to the sum of the depth of the containing groove in the normal direction of the display surface and the thickness of the auxiliary colloid in the normal direction of the display surface; Said display surface The thickness of the normal direction is greater than or equal to 0.1 mm, and the thickness of the auxiliary colloid in the normal direction of the display surface is between 0.05 mm and 1.0 mm. The depth in the line direction is greater than or equal to 0.1 mm. The touch display device according to claim 6, wherein the touch display device includes a plurality of the light-transmitting substrates, and the plurality of the light-transmitting substrates are connected to each other through a third optical glue, A plurality of the light-transmitting substrates connected to each other are disposed in the accommodating groove, and a part of at least one of the light-transmitting substrates is high from the top surface. The touch display device according to claim 6, wherein the frame further includes a bottom covering portion and an electrical connection module, the bottom covering portion is connected to the ring covering portion, and The bottom covering part covers the bottom of the display module, the electrical connection module includes at least one electrical connector, and the display module can be electrically connected to an external control device through the electrical connector to receive Power and image signals from an external control device; a functional component is provided between the transparent substrate and the display surface or between the transparent substrate and the touch module, and the function The piece is one of an anti-electromagnetic interference sheet, a polarizing sheet, and a privacy sheet.