CN111831146A - Touch display device and display device - Google Patents

Abstract

The invention discloses a touch display device, which comprises: the display module, the touch module and the light-transmitting substrate. The side of the display module opposite to the display surface is defined as a bottom surface. The touch module is fixedly arranged on the display surface through the auxiliary colloid, the touch module and the display surface form an accommodating space together, and the accommodating space is located between the display module and the touch module. The transparent substrate is arranged in the accommodating space, and two sides of the transparent substrate are respectively fixed on the display surface and the touch module through the first optical cement and the second optical cement. The adhesive force of the auxiliary colloid is higher than that of the first optical colloid, and the adhesive force of the auxiliary colloid is higher than that of the second optical colloid, so that related maintenance personnel can easily separate the display module from the touch module, and the effect of convenient maintenance can be achieved.

Description

Touch display device and display device

technical field

The present invention relates to a touch display device and a display device, in particular to an industrial touch display device and an industrial display device with a touch function.

Background technique

Existing common industrial touch display devices are difficult to disassemble due to the fixing method between the display and the touch module. Therefore, when the display or the touch module of the industrial touch display device is damaged, it is difficult for maintenance personnel to keep the undamaged components, so that the manufacturer must replace the display and the touch module at the same time, thus increasing the maintenance cost, and also Not environmentally friendly. Therefore, the inventor of the present invention has devoted himself to the research and the application of the theory, and has come up with the present invention with a reasonable design and effectively improving the above-mentioned problems.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a touch display device and a display device to improve the problem in the prior art that both the touch module and the display of the touch display device are difficult to disassemble, which may lead to increased maintenance costs.

One of the embodiments disclosed in the present invention is a touch display device, which is characterized in that the touch display device includes: a display module that can be powered and operated independently, the display module has a display surface, and the display module is opposite to One side of the display surface is defined as a bottom surface; wherein, when the display module is powered and operated, the display surface can present a display screen; a touch module is fixedly arranged on the display surface through an auxiliary glue, the auxiliary glue, the touch module and the display surface together to form an accommodating space, which is located between the display module and the touch module; The optical glue is fixed on the display surface, and the other wide side of the light-transmitting base material is fixed to the touch module through a second optical glue; wherein, the light-transmitting base material is not formed by curing the optical glue; wherein, the adhesive force of the auxiliary glue is higher than The adhesion of the first optical glue, and the adhesion of the auxiliary glue is higher than that of the second optical glue; the adhesion of the auxiliary glue is between 50N/25mm and 100N/25mm, and the adhesion of the second optical glue is between 15N/ 25mm to 40N/25mm, the adhesive force of the first optical adhesive is not more than 5N/25mm; wherein, the percentage difference between the refractive index of the touch module and the refractive index of the transparent substrate is between 0.1% to 100% five out of five.

Preferably, the display module includes a display and a frame, a wide side of the display is a display surface, the frame is fixedly arranged on the periphery of the display, the frame includes a ring covering part and an upper covering part, and the ring covering part Surrounding and covering the periphery of the display, the upper covering part is connected with the ring covering part, the upper covering part is correspondingly located on one side of the display surface of the display, and the upper covering part and the display surface together form an accommodating groove; the auxiliary The glue is fixedly arranged on one side of the ring covering part, and the touch module, the auxiliary glue, the upper covering part and the display surface together form an accommodating space; wherein, the part of the light-transmitting base material far from the display surface is higher than the upper part A top surface of the cladding part, the top surface is located on the side of the upper cladding part away from the display surface; the height of the light-transmitting substrate in the normal direction of the display surface, higher than the top surface is defined as a predetermined height; the auxiliary colloid is in The thickness in the normal direction of the display surface is greater than or equal to the predetermined height.

Preferably, the sum of the thickness of the transparent substrate in the normal direction of the display surface and the thickness of the first optical glue in the normal direction of the display surface is less than or equal to the thickness of the auxiliary glue in the normal direction of the display surface and the storage The sum of the depths of the grooves in the normal direction of the display surface; wherein, the thickness of the light-transmitting substrate in the normal direction of the display surface is greater than or equal to 0.1mm, and the thickness of the auxiliary colloid in the normal direction of the display surface is between 0.05mm and 1.0mm, the depth of the accommodating groove in the normal direction of the display surface is greater than or equal to 0.1mm.

Preferably, the sum of the thickness of the transparent substrate in the normal direction of the display surface and the thickness of the second optical adhesive in the normal direction of the display surface is less than or equal to the depth of the accommodating groove in the normal direction of the display surface and the auxiliary The total thickness of the colloid in the normal direction of the display surface; wherein, the thickness of the light-transmitting substrate in the normal direction of the display surface is greater than or equal to 0.1mm, and the thickness of the auxiliary colloid in the normal direction of the display surface is between 0.05mm and 1.0mm, the depth of the accommodating groove in the normal direction of the display surface is greater than or equal to 0.1mm.

Preferably, a predetermined gap is formed between the outer edge of the light-transmitting base material and the inner edge of the upper cladding portion, and the distance between the outer edge of the light-transmitting base material and the inner edge of the upper cladding portion is less than or equal to 0.3 mm .

Preferably, the touch display device includes a plurality of light-transmitting substrates, and the plurality of light-transmitting substrates are connected to each other by a third optical glue; the adhesive force of the third optical glue is between 15N/25mm and 40N/25mm.

Preferably, the frame body further includes a bottom covering part and an electrical connection module, the bottom covering part is connected with the ring covering part, the bottom covering part covers the bottom of the display module, and the electrical connection module includes at least one electrical connection The display module can be electrically connected to the external control device through the electrical connector to receive the power and image signals provided by the external control device; between the transparent substrate and the display surface or between the transparent substrate and the touch module , and a functional piece is provided, and the functional piece is one of the anti-electromagnetic interference film, the polarizer and the anti-peep film.

Another embodiment disclosed in the present invention is a touch display device, which is characterized in that the touch display device includes: a display module that can be powered to operate independently, the display module has a display surface, and the display module is opposite to One side of the display surface is defined as a bottom surface; wherein, when the display module is powered and operated, the display surface can present a display image; a frame body is fixedly arranged on the periphery of the display module, and the frame body includes a ring covering part and an upper cladding part, the ring cladding part is wrapped around the periphery of the display module, the upper cladding part is connected with the ring cladding part, the upper cladding part is located on one side of the display surface of the display module correspondingly, and the upper cladding part is The part and the display surface together form an accommodating groove; a light-transmitting base material is attached to the display surface through a first optical adhesive, the light-transmitting base material is correspondingly located in the accommodating groove, and the light-transmitting base material is far away from the display surface The part is higher than a top surface of the upper cladding part away from the display surface; the light-transmitting substrate in the normal direction of the display surface, the height higher than the top surface is defined as a predetermined height; at least one auxiliary colloid, which is arranged on the top surface, the thickness of the auxiliary colloid in the normal direction of the display surface is greater than or equal to a predetermined height; a first indium tin oxide layer is formed on the side of the transparent substrate facing the display surface or on a side away from the display surface side; at least one second optical glue, which is disposed on the top surface, the thickness of the second optical glue in the normal direction of the display surface is greater than or equal to a predetermined height; a touch module, which is laminated and disposed on the display surface through a second optical glue The light-transmitting base material is on one side away from the display module, and the touch module is attached and disposed on the top surface through the second optical adhesive; the upper cladding part, the light-transmitting base material and the display module are correspondingly located on one side of the touch-control module facing the light-transmitting base material. 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, X is generated correspondingly The axis position signal and the Y-axis position signal; the percentage difference between the refractive index of the touch module and the refractive index of the light-transmitting substrate is between 0.1% and 5%; among them, the adhesive force of the auxiliary colloid is high The adhesive force of the first optical adhesive, and the adhesive force of the auxiliary colloid is higher than that of the second optical adhesive; the adhesive force of the auxiliary colloid is between 50N/25mm and 100N/25mm, and the adhesive force of the second optical adhesive is between 15N /25mm to 40N/25mm, the adhesion of the first optical adhesive is not more than 5N/25mm.

Preferably, the sum of the thickness of the transparent substrate in the normal direction of the display surface and the thickness of the first optical glue in the normal direction of the display surface is less than or equal to the thickness of the auxiliary glue in the normal direction of the display surface and the storage The sum of the depths of the grooves in the normal direction of the display surface; wherein, the thickness of the light-transmitting substrate in the normal direction of the display surface is greater than or equal to 0.1mm, and the thickness of the auxiliary colloid in the normal direction of the display surface is between 0.05mm and 1.0mm, the depth of the accommodating groove in the normal direction of the display surface is greater than or equal to 0.1mm.

Preferably, the sum of the thickness of the transparent substrate in the normal direction of the display surface and the thickness of the second optical adhesive in the normal direction of the display surface is less than or equal to the depth of the accommodating groove in the normal direction of the display surface and the auxiliary The total thickness of the colloid in the normal direction of the display surface; wherein, the thickness of the light-transmitting substrate in the normal direction of the display surface is greater than or equal to 0.1mm, and the thickness of the auxiliary colloid in the normal direction of the display surface is between 0.05mm and 1.0mm, the depth of the accommodating groove in the normal direction of the display surface is greater than or equal to 0.1mm.

Preferably, a predetermined gap is formed between the outer edge of the light-transmitting base material and the inner edge of the upper cladding portion, and the distance between the outer edge of the light-transmitting base material and the inner edge of the upper cladding portion is less than or equal to 0.3 mm .

Preferably, the touch display device includes a plurality of light-transmitting substrates, and the plurality of light-transmitting substrates are connected to each other by a third optical glue; the adhesive force of the third optical glue is between 15N/25mm and 40N/25mm.

Preferably, the frame body further includes a bottom covering part and an electrical connection module, the bottom covering part is connected with the ring covering part, the bottom covering part covers the bottom of the display module, and the electrical connection module includes at least one electrical connection The display module can be electrically connected to the external control device through the electrical connector to receive the power and image signals provided by the external control device; between the transparent substrate and the display surface or between the transparent substrate and the touch module , and a functional piece is provided, and the functional piece is one of the anti-electromagnetic interference film, the polarizer and the anti-peep film.

To sum up, in the touch display device disclosed in the embodiment of the present invention, the adhesive force of the auxiliary glue is between 50N/25mm and 100N/25mm, and the adhesion force of the second optical glue is between 15N/25mm and 40N/25mm. The design that the adhesive force of the first optical adhesive is not greater than 5N/25mm will allow the relevant maintenance personnel to more easily separate the display module and the touch module from each other, thereby achieving the effect of facilitating maintenance.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings of the present invention, but these descriptions and drawings are only used to illustrate the present invention, rather than make any claims to the protection scope of the present invention. limit.

Description of drawings

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

FIG. 2 is a schematic diagram of another angle of the first embodiment of the touch display device of the present invention.

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

FIG. 4 is an exploded schematic diagram of the first embodiment of the touch display device of the present invention.

FIG. 5 is a schematic diagram of the first embodiment of the touch display device of the present invention after cutting.

6 is a schematic cross-sectional view of a second embodiment of the touch display device of the present invention.

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

8 is another schematic cross-sectional view of a third embodiment of the touch display device of the present invention.

9 is a schematic cross-sectional view of a fourth embodiment of the touch display device of the present invention.

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

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

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

13 is a schematic cross-sectional view of an eighth embodiment of the touch display device of the present invention.

Detailed ways

In the following description, if it is indicated to refer to a specific figure or as shown in a specific figure, it is only used for emphasis in the subsequent description, and most of the related content mentioned appears in the specific figure, However, it is not limited that only the specific drawings may be referred to in this subsequent description.

Please refer to FIG. 1 to FIG. 5 together. FIG. 1 is a schematic diagram of the first embodiment of the touch display device of the present invention; FIG. 2 is another angle of the first embodiment of the touch display device of the present invention. Schematic diagram; FIG. 3 is a cross-sectional schematic diagram of the first embodiment of the touch display device of the present invention taken along the section line III shown in FIG. 1 ; FIG. 4 is an exploded schematic diagram of the first embodiment of the touch display device of the present invention; FIG. 5 is a schematic diagram of the first embodiment of the touch display device of the present invention after cutting.

The touch display device A includes a display module 10 , a frame body 20 , an electrical connection module 30 , a light-transmitting substrate 40 , a first optical glue 50 , an auxiliary glue 60 , a touch module 70 and at least one second Optical glue 80.

The display module 10 can be powered and operated independently. The display module 10 has a display surface 101 , and the 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 on and operates, the display surface 101 can present a display image. In a specific application, the display module 10 can be manufactured and sold independently, or the display module 10 can also be simply assembled and sold. In practical applications, the display module 10 can be a rectangular cube or a square cube, which is not limited thereto, and the size of the display module 10 can also 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 part 201 and an upper covering part 202 . The ring covering part 201 surrounds the periphery of the display module 10 , and the upper covering part 202 Connected to the ring covering portion 201 , the upper covering portion 202 is correspondingly located on the side of the display module 10 having the display surface 101 , and the upper covering portion 202 and the display surface 101 together form an accommodating slot SP (as shown in FIG. 4 ). ).

The display module 10 can be covered by the frame body 20 to have a better protection effect, especially in an industrial environment; in other words, the touch display device A of the present invention, because the display module 10 is covered with a frame outside Therefore, the display module 10 will not be easily damaged by the external environment, so that the service life of the touch display device A can be greatly improved. In practical applications, the material of the frame body 20 may be metal, plastic, etc. as required, 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 also be provided with other components for auxiliary display. The electronic parts that the module 10 operates. The display module 10 can be electrically connected with an external control device (such as an industrial computer, etc.) through the electrical connector 31 to receive the power and image signals provided by the external control device; in other words, the external control device can be connected through the relevant electrical connection The wire is electrically connected to the electrical connector 31 to control the operation of the display module 10 accordingly. In the figure of this embodiment, the electrical connection module 30 includes a single electrical connector 31 as an example, but the number of electrical connectors 31 is not limited to this, and can be increased according to requirements; in addition, about electrical connectors The installation position of the 31 can also be changed according to requirements, and is not limited to being arranged on one side of the bottom cladding 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 fixed to each other in a tight fit, and the frame body 20 and the display module 10 may also be fitted with fixing members such as adhesive tapes. Strengthen the connection strength between each other.

It is particularly noted that, in practical applications, the display module 10 and the frame body 20 can be manufactured and sold in groups, and the relevant manufacturers can directly assemble the frame body 20 and the display module 10 and apply them to the required requirements. In the product, or the display module 10 covered with the frame body 20 may be directly sold.

As shown in FIG. 3 and FIG. 4 , the transparent substrate 40 is attached to the display surface 101 through a first optical adhesive 50 , the transparent substrate 40 is correspondingly located in the accommodating groove SP, and the transparent substrate 40 The portion away from the display surface 101 is higher than a top surface 2021 of the upper cladding portion 202 away from the display surface 101 . The light-transmitting substrate 40 can be any structure that can transmit light. Of course, the light-transmitting substrate 40 must allow relevant personnel to view the display module 10 from the side of the light-transmitting substrate 40 opposite to the display surface 101 . The display image displayed on the display surface 101; for example, the light-transmitting substrate 40 may be glass, optical plastic (eg, PMMA), or a combination of glass and optical plastic, which 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. It is particularly noted that the light-transmitting substrate 40 mentioned herein is not a cured optical adhesive. On the contrary, the present invention uses the light-transmitting substrate 40 to replace the optical adhesive, so as to reduce the usage amount of the high-cost optical adhesive. This reduces the overall manufacturing cost of the touch display device A.

An auxiliary colloid 60 is provided on the top surface 2021 of the frame body 20 . In a specific implementation, the auxiliary colloid 60 may be a solid glue containing 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 side of the transparent substrate 40 opposite to the side connected to the display surface 101 through a second optical glue 80 , and the touch module 70 is also connected to the frame 20 through the auxiliary glue 60 . In other words, the touch module 70 is fixed to the transparent substrate 40 and the frame body 20 by the second optical glue 80 and the auxiliary glue 60 . The upper cladding portion 202 , the light-transmitting substrate 40 and the display module 10 are located in the range of the orthographic projection of the touch module 70 facing the light-transmitting substrate 40 , that is, the touch module 70 is integrally covered. On one side of the frame body 20 and the display module 10 , 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 approximately the same as the refractive index of the touch panel of the touch module 70 . In this way, the relevant personnel can view the light-transmitting substrate 40 from the side of the touch module 70 . When the display screen is 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 FIG. 4 , in the actual manufacturing process, relevant manufacturers may first use the second optical adhesive 80 to fix the light-transmitting substrate 40 on one side of the touch module 70 ; The auxiliary glue 60 is arranged on the surface 2021; finally, the first optical glue 50 is coated or attached to the side of the light-transmitting substrate 40 opposite to the touch module 70, and related mechanical equipment (such as various vacuum lamination equipment) is used. , the light-transmitting substrate 40 is attached and disposed on the display surface 101 through the first optical adhesive 50 . In special applications, the first optical adhesive 50 can also be coated or attached to the display surface 101 , and then related mechanical equipment is used to make the light-transmitting substrate 40 pass through the first optical adhesive 50 and the coated frame The display modules 10 of 20 are connected to each other.

In practical applications, the auxiliary colloid 60 is, for example, a solid glue. When the solid glue is used as the auxiliary colloid 60, the solid glue can have two release papers, and the relevant personnel or mechanical equipment can tear off one of the release papers first. paper, so that the adhesive layer of the solid glue is exposed, so as to be attached to the top surface 2021 of the upper covering part 202 (as shown in FIG. 3 ). When the touch module 70 of the material 40 and the display module 10 covered with the frame body 20 are connected to each other, another release paper of the auxiliary glue 60 can be torn off. Of course, in different embodiments, the auxiliary colloid 60 may also be liquid glue, which is not limited thereto.

It should be noted that the thickness D1 of the auxiliary colloid 60 attached to the top surface 2021 of the upper cladding portion 202 in the normal direction of the display surface 101 (the Z-axis direction of the coordinate system shown in FIG. 3 ) is It is higher than the height H1 of the top surface 2021 of the upper cladding part 202 . That is to say, assuming that the height of the transparent substrate 40 in the normal direction of the display surface 101 higher than the top surface 2021 of the frame body 20 is defined 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 glue 60 in the display surface 101 . The sum of the thickness D1 in the normal direction of the surface 101 and the depth D4 of the accommodating groove SP in the normal direction of the display surface 101 ; expressed in a mathematical formula: D2+D3≦D1+D4. 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 D1 of the auxiliary colloid 60 in the normal direction of the display surface 101 is between 0.05 mm and 1.0 mm. The depth D4 of the groove SP (as shown in FIG. 4 ) 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 is less than or equal to the normal line of the accommodating groove SP in 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 a mathematical formula: 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, 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 mm, The depth D4 of the accommodating 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 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 is greater than or equal to the normal line of the accommodating groove SP in the display surface 101 The depth of the direction D4; expressed in mathematical formula: D2+D5≧D4. For example, the thickness D2 of the light-transmitting substrate in the normal direction of the display surface 101 is greater than or equal to 0.1 mm.

In particular, in practical applications, the production error of the depth D4 of the accommodating groove SP formed by the display surface 101 and the frame body 20 is related to the thickness D2 of the transparent substrate 40 in the normal direction of the display surface 101 . are approximately the same. Therefore, if the thickness D2 of the transparent substrate 40 and the depth D4 of the accommodating groove SP are the same as the standard during the production process, the transparent substrate 40 is produced and manufactured. The problem that the optical substrate 40 cannot be correctly placed in the accommodating slot SP may result in that the touch module 70 cannot be smoothly attached to the side of the display module 10 covered with the frame body 20; therefore, the present invention The touch display device A is designed to protrude from the top surface 2021 of the frame body 20 when the light-transmitting substrate 40 is disposed in the accommodating slot SP, which can effectively avoid the above problems.

It is worth mentioning that, in FIG. 4 , the auxiliary colloid 60 is taken as an example of solid glue, and the auxiliary colloid 60 is generally annular, but the shape and quantity of the auxiliary colloid 60 are not limited thereto. For example, the auxiliary colloid 60 can also be in the form of four strips, which are correspondingly attached to the top surface 2021 of the upper covering portion 202 . In this way, the relevant manufacturers can use the light-transmitting substrate 40 , the display surface 101 and the frame according to the 20 of the surface flatness, and by adjusting the thickness of the auxiliary glue 60 disposed at different positions, the surface of the touch module 70 for the user to operate is substantially parallel to the display surface 101 .

As shown in FIG. 3 , in a specific application, the adhesive strength (adhesion/adhesive strength) of the auxiliary colloid 60 is higher than the adhesive strength (adhesion/adhesive strength) of the first optical adhesive 50, and the adhesive strength of the auxiliary colloid 60 is higher than the adhesion/adhesive strength of the second optical adhesive 80 . For example, the first optical adhesive 50, the auxiliary colloid 60 and the second optical adhesive 80 are subjected to the adhesion test using the 90-degree angle Peel Adhesion method (based on ASTM D3330) or the Normal Tenslle method (based on ASTM D-897). , the adhesive force of the auxiliary glue 60 may be between 50N/25mm and 100N/25mm, the adhesion force of the second optical glue 80 may be between 15N/25mm and 40N/25mm, and the adhesion force of the first optical glue 50 may be no Greater than 5N/25mm. The above values are carried out using different adhesion test devices (such as test boards, pressing devices, peel test devices, roll forming devices, etc.) and different adhesion test methods (such as peeling method, overlapping method, rolling method, etc.) During the test, the test value and its unit may be slightly different, but as long as the adhesive force of the auxiliary colloid 60 is higher than that of the first optical adhesive 50, and the adhesive force of the auxiliary colloid 60 is also higher than that of the second optical adhesive 80 The adhesive force should belong to the scope of implementation of the present invention.

Please refer to FIG. 5 , which is a schematic diagram of the touch display device A of the present invention after being cut. As shown in the figure, by making the adhesive force of the auxiliary glue 60 higher than the adhesion force of the first optical glue 50, and the adhesion force of the auxiliary glue 60 is also higher than the adhesion force of the second optical glue 80, the relevant maintenance personnel are in the When the inventive touch display device A is repaired, the cutter can be cut from the position between the touch module 70 and the auxiliary glue 60 , so that the touch module 70 and the display module 10 can be separated from each other relatively easily. In practical applications, the relevant maintenance personnel can set the touch display device A in the freezer before cutting with the cutter, so as to embrittle the auxiliary glue 60 and the second optical glue 80, so that the cutting can be relatively easy The touch module 70 and the auxiliary glue 60 . It is worth mentioning that, in the embodiment in which the light-transmitting substrate 40 is made of related materials such as glass, since the second optical glue 80 is further disposed between the touch module 70 and the light-transmitting substrate 40 , the relevant personnel or When the machine uses a cutter to cut the auxiliary glue 60 and the second optical glue 80, the position where the cutter cuts into the auxiliary glue 60 may be the contact surface connected by the touch module 70 and the auxiliary glue 60, down to the second optical glue The thickness of 80 can be within the range of 80, that is, when the cutting position of the tool is slightly deviated, the touch module 70 and the display module 10 should still be separated from each other.

It is worth mentioning that, as shown in FIG. 3 , in practical applications, in order to make it relatively easy for the cutter to cut the auxiliary colloid 60 and the second optical adhesive 80 , the thickness D1 of the auxiliary colloid 60 in the normal direction of the display surface 101 may be between the The thickness D5 of the second optical adhesive 80 in the normal direction of the display surface 101 is between 0.05mm and 0.25mm.

As shown in FIG. 6 , it is a schematic cross-sectional view of a second embodiment of the touch display device of the present invention (roughly a schematic view taken along the position of section line III shown in FIG. 1 ). In different applications, the frame body 20 may further include a bottom cladding portion 203 and an electrical connection module 30 , the bottom cladding portion 203 is connected to the ring cladding portion 201 , and the bottom cladding portion 203 covers the display module 10 . bottom. The ring cladding portion 201 , the upper cladding portion 202 and the bottom cladding portion 203 may be integrally formed components, and are disposed outside the display module 10 through relevant molding 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 appear as a hollow rectangular body, while 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 recess in one side.

Please refer to FIG. 7 and FIG. 8 together. FIG. 7 is a schematic cross-sectional view of a touch display device according to a third embodiment of the present invention (roughly a schematic view taken along the position of section line III shown in FIG. 1 ), and FIG. 8 It is a schematic cross-sectional view from 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 previous 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; , the width W1 of the light-transmitting substrate 40 on the cross-sectional plane perpendicular to the normal direction of the display surface 101 (the Z-Y plane of the coordinate system shown in the figure) is smaller than the width W1 of the accommodating groove SP perpendicular to the display surface 101 The width W2 of the section plane in the line direction.

As shown in FIG. 8 , when the touch module 70 provided with the transparent substrate 40 and the frame body 20 are fixed to each other, and the transparent substrate 40 is located in the accommodating slot SP correspondingly, the accommodating slot SP will not be transparent When the optical substrate 40 is filled, a ring-shaped groove Sa will remain between the touch module 70 and the display surface 101; in practical applications, a corresponding strip-shaped groove that is not connected to each other may be formed, but not limited to It is an annular groove; through the design of the annular groove Sa, the light-transmitting substrate 40 can have a space for expansion when heated. In other words, in the embodiment of the design without the predetermined gap, if the touch display device A is in a high temperature state for a long time, after the light-transmitting substrate 40 is thermally expanded, it may abut against the frame body 20, which may cause the frame body 20 or the display module 10 is damaged. In addition, through the above-mentioned design of the predetermined gap S or the annular groove Sa, the light-transmitting substrate 40 can still be arranged in the accommodating groove SP (as shown in FIG. 4 ) when there are unexpected production tolerances. chance. In practical applications, the distance W3 between the outer edge 40a of the transparent substrate 40 and the inner edge 202a of the upper cladding portion 202 may be less than or equal to 0.3 mm; The distance between the inner edges 202a of the covering portion 202 may vary according to the size of the touch display device A. As shown in FIG.

Please refer to FIG. 9 , which is a schematic diagram of a fourth embodiment of the touch display device of the present invention. As shown in the figure, the biggest difference between this embodiment and the previous embodiments 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 connected to each other through a first The three optical adhesives 90 are connected to each other, and the plurality of light-transmitting 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 light-transmitting substrates 40 is higher than Top 2021. The third optical adhesive 90 can 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, relevant manufacturers (for example, manufacturers that attach the touch module 70 to the display module) can customize the light-transmitting substrate 40 with different thicknesses, and the relevant manufacturers can place the accommodating groove SP on the display surface 101 . When the depth D4 in the normal direction is deeper than the expected depth, in conjunction with the third optical adhesive 90, an additional light-transmitting substrate 40 with a similar thickness is added. In another practical application, the relevant manufacturer may also determine the number of the light-transmitting substrates 40 according to the depth D4 of the accommodating groove SP in the normal direction.

In other words, through the design of a plurality of light-transmitting substrates 40 , relevant manufacturers can adaptively adjust the number of light-transmitting substrates 40 according to the depth D4 of the accommodating groove SP in the normal direction of the display surface 101 , thereby ensuring that The light-transmitting substrate 40 can be reliably connected to the touch module 70 and the display surface 101 , thereby avoiding the need to use a large amount of optical glue in order to ensure that the light-transmitting substrate 40 can be in contact with the display surface 101 , thereby resulting in a substantial increase in cost. The problem.

In the actual manufacturing process, the depth D4 of the accommodating groove SP in the normal direction of the display surface 101 may be different from the original expected due to various reasons, such as the production tolerance of the frame body 20, the production tolerance of the display module 10, etc. The depths are different, so if the originally predetermined light-transmitting substrate 40 is connected to the display module 10 covered with the frame body 20, an air layer may be formed between the light-transmitting substrate 40 and the display surface 101, and the user may When viewing the display screen displayed on the display surface 101 through the touch module 70, problems such as overlapping images will be seen; therefore, through the design of the plurality of light-transmitting substrates 40 in the above-mentioned embodiment, overlapping can be effectively avoided The occurrence of shadowing and other problems.

Please refer to FIG. 10 , which is a schematic diagram of a fifth embodiment of the touch display device of the present invention. As shown in the figure, the biggest difference between this embodiment and the previous embodiment is that a functional component 100 may be disposed between the light-transmitting substrate 40 and the display surface 101 , and the functional component 100 may be, for example, an anti-electromagnetic interference sheet, One of polarizers and privacy films. Of course, in practical applications, the functional element 100 may also be disposed between the transparent substrate 40 and the touch module 70 .

Please refer to FIG. 11 , which is a schematic diagram of a sixth embodiment of the touch display device of the present invention. As shown in the figure, the biggest difference between this embodiment and the foregoing embodiments 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 the side of the transparent 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 layer Both the 110 and the second indium tin oxide layer 120 can cooperate with each other, so that when the touch module 70 is operated, the X-axis coordinate information and the Y-axis coordinate information are correspondingly generated. In other words, the light-transmitting substrate 40 and the first indium tin oxide layer 110, together with the touch module 70, can be used as a touch device with a complete control function.

Please refer to FIG. 12 , 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 previous embodiments is that the first indium tin oxide layer 110 can also be formed on the side of the transparent substrate 40 away from the display surface 101 , and the first indium tin oxide layer 110 110 is correspondingly located between the transparent substrate 40 and the second optical adhesive 80 . Specifically, in the manufacturing process, the first indium tin oxide layer 110 may be formed on one side of the transparent substrate 40 , and then the second optical adhesive 80 is used to make the transparent material having the first indium tin oxide layer 110 . The optical substrate 40 and the touch module 70 are bonded 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 that are bonded to each other are located at positions opposite to each other, and the two can be mutually The function is to generate the X-axis coordinate information and the Y-axis coordinate information correspondingly when the touch module 70 is operated. In different applications, when the touch module 70 is operated, the first ITO layer 110 can also generate Y-axis coordinate data, and the second ITO layer 120 can also generate X-axis coordinate data correspondingly.

Please refer to FIG. 13 , which is a schematic cross-sectional view of an eighth embodiment of the touch display device of the present invention. As shown in the figure, the biggest difference between this embodiment and the aforementioned first embodiment is that the touch display device A may not have the frame body 20 , and the touch module 70 is fixedly disposed on the display surface 101 through the auxiliary glue 60 . The auxiliary glue 60 , the touch module 70 and the display surface 101 together form an accommodating space Z, and the accommodating space Z is located between the display module 10 and the touch module 70 , that is, the auxiliary glue 60 is a ring structure. The light-transmitting substrate 40 is disposed in the accommodating space Z, and a wide side 401 of the light-transmitting substrate 40 is fixed on the display surface 101 of the display module 10 through the first optical adhesive 50 , and the other wide side 401 of the light-transmitting substrate 40 is The side surface 402 is fixed to the touch module 70 through the second optical adhesive 80 .

It should be noted that, in FIG. 13 of this embodiment, the light-transmitting substrate 40 is arranged to substantially fill the accommodating space Z, but the light-transmitting substrate 40 is not limited to the setting that must fill the accommodating space Z. In the application of , the light-transmitting substrate 40 can also be set without filling the accommodating space Z, and present a state similar to that shown in FIG. 7 .

To sum up, in the existing industrial touch display device, a large material cost comes from the optical glue, and the touch display device of the present invention can effectively reduce the optical glue through the arrangement of the light-transmitting substrate. Therefore, the overall manufacturing cost of the touch display device can be greatly reduced. In addition, in the existing industrial touch display devices, a large amount of optical water glue is used to connect related components, but because the thickness of the optical water glue is not easy to control, it is easy to appear in the final product similar to water ripples (Mura ) defects; 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.

In addition, in the touch display device of the present invention, the adhesive force of the auxiliary glue is between 50N/25mm and 100N/25mm, the adhesion force of the second optical glue is between 15N/25mm and 40N/25mm, and the adhesion force of the first optical glue is The design of no more than 5N/25mm allows the relevant maintenance personnel to more easily separate the display module and the touch module from each other, thereby achieving the effect of easy maintenance. Since the relevant maintenance personnel can more easily separate the display module and the touch module from each other, when the relevant personnel repair the touch display device of the present invention, they can keep the undamaged display module or touch module, and only replace the damaged display module or touch module. Damaged touch modules or display modules, thus reducing repair costs.

Claims (13)

1. A touch display device, wherein the touch display device comprises: A display module, which can be powered to operate independently, 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; wherein, the display module is powered to operate When , the display surface can present a display screen; a touch module fixed on the display surface by an auxiliary glue, the auxiliary glue, the touch module and the display surface together form a accommodating space, and the accommodating space is located in the display module and the touch module; A light-transmitting base material is disposed in the accommodating space, and one wide side of the light-transmitting base material is fixed on the display surface by a first optical adhesive, and the other wide side of the light-transmitting base material is fixed on the display surface. The side surface is fixed on the touch module through a second optical glue; wherein, the light-transmitting substrate is not formed by curing the optical glue; Wherein, the adhesive force of the auxiliary colloid is higher than that of the first optical adhesive, and the adhesive force of the auxiliary colloid is higher than that of the second optical adhesive; the adhesive force of the auxiliary colloid is between 50N/25mm to 100N/25mm, the adhesive force of the second optical adhesive is between 15N/25mm to 40N/25mm, and the adhesive force of the first optical adhesive is not greater than 5N/25mm; Wherein, 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%. 2 . The touch display device according to claim 1 , wherein the display module comprises a display and a frame, a wide side of the display is the display surface, and the frame is fixedly disposed on the display surface. 3 . On the periphery of the display, the frame body includes a ring wrapping portion and an upper wrapping portion, the ring wrapping portion wraps around the periphery of the display, the upper wrapping portion and the ring wrapping The cladding parts are connected, the upper cladding part is correspondingly located on one side of the display surface of the display, and the upper cladding part and the display surface together form an accommodating groove; the auxiliary colloid is fixedly arranged On one side of the ring cladding portion, the touch module, the auxiliary glue, the upper cladding portion and the display surface together form the accommodating space; wherein, the light-transmitting substrate The part far from the display surface is higher than a top surface of the upper cladding part, and the top surface is located on the side of the upper cladding part away from the display surface; In the normal direction of the display surface, the height above the top surface is defined as a predetermined height; the thickness of the auxiliary colloid in the normal direction of the display surface is greater than or equal to the predetermined height. 3 . The touch display device according to claim 2 , wherein the thickness of the light-transmitting substrate in the normal direction of the display surface and the normal line of the first optical adhesive on the display surface are 3 . The sum of the thickness in the direction 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 accommodating groove in the normal direction of the display surface; wherein, the light transmission The thickness of the substrate 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 accommodating groove is located in the The depth in the normal direction of the display surface is greater than or equal to 0.1 mm. 4 . The touch display device according to claim 2 , wherein the thickness of the light-transmitting substrate in the normal direction of the display surface and the normal line of the second optical adhesive on the display surface The sum of the thickness in the direction is less than or equal to the sum of the depth of the accommodating groove in the normal direction of the display surface and the thickness of the auxiliary colloid in the normal direction of the display surface; wherein, the light transmission The thickness of the substrate 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 accommodating groove is located in the The depth in the normal direction of the display surface is greater than or equal to 0.1 mm. 5 . The touch display device according to claim 2 , wherein a predetermined gap is formed between an outer edge of the light-transmitting base and an inner edge of the upper cladding portion, and the light-transmitting base The distance between the outer edge of the material and the inner edge of the upper cladding portion is less than or equal to 0.3 mm. 6 . The touch display device according to claim 1 , wherein the touch display device comprises a plurality of the light-transmitting substrates, and the plurality of the light-transmitting substrates pass through a third optical fiber. 7 . The glues are connected to each other; the adhesive force of the third optical glue is between 15N/25mm and 40N/25mm. 7 . The touch display device according to claim 2 , wherein the frame body further comprises a bottom covering part and an electrical connection module, the bottom covering part is connected with the ring covering part. 8 . , the bottom covering part covers the bottom of the display module, the electrical connection module includes at least one electrical connector, the display module can be electrically connected with an external control device through the electrical connector to receive Power and image signals provided by an external control device; a functional element is arranged between the transparent substrate and the display surface or between the transparent substrate and the touch module, and the functional element is One of the anti-electromagnetic interference film, polarizer and privacy film. 8. A touch display device, wherein the touch display device comprises: A display module, which can be powered to operate independently, 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; wherein, the display module is powered to operate When , the display surface can present a display screen; A frame body, which is fixedly arranged on the periphery of the display module, the frame body includes a ring covering part and an upper covering part, the ring covering part wraps around the periphery of the display module, and the upper covering part The cladding part is connected with the ring cladding part, the upper cladding part is located on one side of the display surface of the display module correspondingly, and the upper cladding part and the display surface together form an accommodating groove ; A light-transmitting base material, which is attached to the display surface by a first optical adhesive, the light-transmitting base material is correspondingly located in the accommodating groove, and the light-transmitting base material is far from the display surface. Part of it is higher than a top surface of the upper cladding part away from the display surface; the height of the light-transmitting substrate in the normal direction of the display surface, higher than the top surface is defined as a predetermined height; at least one auxiliary colloid, which is disposed on the top surface, and the thickness of the auxiliary colloid in the normal direction of the display surface is greater than or equal to the predetermined height; a first indium tin oxide layer, which is formed on a side of the transparent substrate facing the display surface or a side away from the display surface; at least one second optical glue, which is disposed on the top surface, and the thickness of the second optical glue in the normal direction of the display surface is greater than or equal to the predetermined height; a touch module, which is attached and disposed on the side of the transparent substrate away from the display module through a second optical adhesive, and the touch module is attached and disposed on the transparent substrate through the second optical adhesive a top surface; the upper cladding portion, the light-transmitting base material and the display module are correspondingly located in the orthographic projection range of the touch module facing the light-transmitting base material; 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 as to generate X correspondingly when the touch module is touched 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 light-transmitting substrate is between 0.1% and 5%; Wherein, the adhesive force of the auxiliary colloid is higher than that of the first optical adhesive, and the adhesive force of the auxiliary colloid is higher than that of the second optical adhesive; the adhesive force of the auxiliary colloid is between 50N/25mm to 100N/25mm, the adhesive force of the second optical adhesive ranges from 15N/25mm to 40N/25mm, and the adhesive force of the first optical adhesive is not greater than 5N/25mm. 9 . The touch display device according to claim 8 , wherein the thickness of the light-transmitting substrate in the normal direction of the display surface and the normal line of the first optical adhesive on the display surface The sum of the thicknesses in the direction 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 accommodating groove in the normal direction of the display surface; wherein, the light transmission The thickness of the substrate 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 accommodating groove is located in the The depth in the normal direction of the display surface is greater than or equal to 0.1 mm. 10 . The touch display device according to claim 8 , wherein the thickness of the light-transmitting substrate in the normal direction of the display surface and the normal line of the second optical adhesive on the display surface are 10 . The sum of the thickness in the direction is less than or equal to the sum of the depth of the accommodating groove in the normal direction of the display surface and the thickness of the auxiliary colloid in the normal direction of the display surface; wherein, the light transmission The thickness of the substrate 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 accommodating groove is located in the The depth in the normal direction of the display surface is greater than or equal to 0.1 mm. 11 . The touch display device according to claim 8 , wherein a predetermined gap is formed between an outer edge of the light-transmitting base material and an inner edge of the upper cladding portion, and the light-transmitting base material The distance between the outer edge of the material and the inner edge of the upper cladding portion is less than or equal to 0.3 mm. 12 . The touch display device according to claim 8 , wherein the touch display device comprises a plurality of the light-transmitting substrates, and the plurality of the light-transmitting substrates pass through a third optical element. 13 . The glues are connected to each other; the adhesive force of the third optical glue is between 15N/25mm and 40N/25mm. 13 . The touch display device according to claim 8 , wherein the frame further comprises a bottom covering portion and an electrical connection module, the bottom covering portion is connected to the ring covering portion 13 . , the bottom covering part covers the bottom of the display module, the electrical connection module includes at least one electrical connector, the display module can be electrically connected with an external control device through the electrical connector to receive Power and image signals provided by an external control device; a functional element is arranged between the transparent substrate and the display surface or between the transparent substrate and the touch module, and the functional element is One of the anti-electromagnetic interference film, polarizer and privacy film.

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