TWI597635B - Assembling structure and assembling method for touch display apparatus - Google Patents

Description

Assembly structure of touch display device and assembly method thereof

The present invention relates to an assembly structure of a touch display device and an assembly method thereof, and more particularly to an assembly structure of a narrow frame touch display device and an assembly method thereof.

With the increasing maturity of touch display technology and the ever-decreasing cost, touch display devices, such as smart phones and tablet computers, have become an indispensable part of people's lives. In order to further improve the user's visual experience texture, the frame of the touch display device is narrower and narrower, and even tends to have no border design. Therefore, light weight, thinness, and aesthetics have become the main development trends of touch display devices.

In the assembled structure of a general touch display device, the bezel and the housing mainly provide the functions of strengthening and fixing the structure. The existence of the frame may increase the overall volume of the touch display device, reduce the effective display area, increase the weight of the touch display device, complicate the structure, increase the manufacturing cost, and the like, but if the frame structure is not used, There will be problems with structural weakening. On the other hand, the bezel has the function of protecting the touch screen. FIG. 1 is a schematic cross-sectional view showing an assembled structure of a conventional narrow-frame touch display device. As shown in FIG. 1 , the conventional narrow-frame touch display device 1 is limited by the fact that the width of the touch panel 11 is smaller than the width of the display unit 12 , so that the composite housing is used to display the touch panel 11 and the display. The touch screen 10 assembled by the unit 12 is assembled and fixed, that is, the touch screen is sandwiched by the independent and corresponding side frames 13 and 14 by lateral assembly on opposite sides of the touch screen 10. 10, at the same time, the other internal components are assembled together between the two side frames 13, 14 and then the back cover 15 and the side frames The frames 13, 14 are assembled to each other to complete the production. However, the structures of the frames 13 and 14 on the two sides of the narrow-frame touch display device 1 are finer, are not easy to manufacture, and the two frames 13 and 14 are respectively assembled with the touch screen 10, which is bound to increase the assembly process. The complexity makes production inefficient. At the same time, the joining of the side frames 13 and 14 and the back cover 15 is not advantageous for realizing the thinning of the overall structure, and the structural strength after assembly cannot be strengthened, and the mold cost for producing the micro frame can not reduce the production cost.

The purpose of the present invention is to provide an assembly structure and an assembly method of the touch display device, which has a simple structure, can simplify the assembly process, is easy to assemble, disassemble and repair, and can improve the structural strength, and is advantageous for a narrow frame or even a frameless design, which can not only reduce Manufacturing costs can enhance visual perception.

To achieve the foregoing objective, the present invention provides an assembly structure of a touch display device, which includes a first combination unit, a second combination unit, a first cover, and a second cover. The first combination unit includes a touch screen and a carrying device, wherein the touch screen is disposed on the carrying device. The second combination unit is combined with the first combination unit and includes a casing sleeve and an auxiliary positioning element. The outer casing includes a bottom plate, a first side plate, a second side plate, an upper opening portion, a first port portion, a second port portion, a plurality of first engaging members, and an accommodating space, wherein the first side plate and the second side plate respectively A plurality of first engaging elements are disposed on the bottom plate, wherein the first combining unit is disposed in the receiving space via the first port portion or the second port portion, so that the touch screen passes through the upper opening The portion is exposed, and the first side panel and the second side panel restrict the first combination unit from being detached from the upper opening portion. The auxiliary positioning component is slidably disposed between the bottom plate and the first combining unit, and includes a plurality of second engaging components corresponding to the plurality of first engaging components, wherein the auxiliary positioning component is located at the first position of the bottom plate a plurality of first engaging elements are engaged with the plurality of second engaging elements to allow the first combining unit to slide relative to the outer casing; and when the auxiliary positioning element is located at the second position of the bottom plate, the plurality The first engaging component is separated from the plurality of second engaging components, and the auxiliary positioning component abuts the first combining unit, and the first side plate and the second side plate cooperate with each other to determine Bit first combination unit. The first cover system covers the first port portion, and the second cover system covers the second port portion.

In order to achieve the above objective, the present invention further provides a method for assembling a touch display device, comprising the steps of: (a) providing a first combination unit, wherein the first combination unit comprises a touch screen and a carrying device, and the touch screen is disposed on the carrying device. (b) providing a second combination unit, wherein the second combination unit comprises a casing sleeve and an auxiliary positioning element, wherein the casing body comprises a bottom plate, a first side plate, a second side plate, an upper opening portion, a first port portion, The first port and the second side plate respectively extend upward from opposite sides of the bottom plate, and the plurality of first engaging components are disposed on the bottom plate, wherein the auxiliary positioning is performed. The component is slidably disposed on the bottom plate and includes a plurality of second engaging components; (c) moving the auxiliary positioning component to the first position of the bottom plate to enable the plurality of first engaging components and the plurality of second engaging components Engaging, and inserting the first combination unit into the accommodating space via the first port portion or the second port portion of the outer casing, so that the touch screen is exposed through the upper opening portion, and the first side plate and the second side plate The plate restricts the first combination unit from being disengaged from the upper opening; and (d) moving the auxiliary positioning element to the second position of the bottom plate to disengage the plurality of first engaging elements from the plurality of second engaging elements, and assisting the positioning element Abutting the first combination unit, the auxiliary positioning element cooperates with the first side plate and the second side plate to position the first combination unit.

1‧‧‧Touch display device

10‧‧‧ touch screen

11‧‧‧Touch panel

12‧‧‧Display unit

13, 14‧‧‧ side frame

15‧‧‧Back cover

2‧‧‧Touch display device

3‧‧‧First combination unit

31‧‧‧ touch screen

311‧‧‧ touch panel

312‧‧‧Display unit

32‧‧‧ Carrying device

33‧‧‧ circuit board

34‧‧‧Battery

35‧‧‧ cushioning element

321‧‧‧ top side

322‧‧‧ first side

323‧‧‧Second side

324‧‧‧Bottom

4‧‧‧Second combination unit

41‧‧‧Outer casing

42‧‧‧Auxiliary positioning elements

410‧‧‧floor

411‧‧‧First side panel

411a‧‧‧First narrow frame

412‧‧‧ second side panel

412a‧‧‧Second narrow frame

413‧‧‧Upper opening

414‧‧‧First Port Department

415‧‧‧Second Port Department

416‧‧‧First engagement element

417‧‧‧ accommodating space

418‧‧‧First Limitation Department

419‧‧‧Second Limitation

420‧‧‧ boards

421‧‧‧Second snap-in components

5‧‧‧First cover

6‧‧‧Second cover

P1‧‧‧ first position

P2‧‧‧ second position

R1‧‧‧ first chute

R2‧‧‧second chute

AA, BB‧‧‧ section

S1 to S4‧‧‧ steps

FIG. 1 is a schematic cross-sectional view showing an assembled structure of a conventional narrow-frame touch display device.

2 is a structural exploded view of a narrow-frame touch display device according to a preferred embodiment of the present invention.

FIG. 3 is a partial schematic structural view of a narrow-frame touch display device according to a preferred embodiment of the present invention.

FIG. 4 is a combined structural diagram of a narrow-frame touch display device according to a preferred embodiment of the present invention.

Figure 5 is a cross-sectional view of the narrow-frame touch display device of Figure 4 taken along line AA.

6A to 6E are schematic diagrams showing the assembly flow of the narrow-frame touch display device in the cross-section of the BB line segment in FIG. 4 .

FIG. 7 is a flow chart of a method for assembling a narrow-frame touch display device according to a preferred embodiment of the present invention.

Some exemplary embodiments embodying the features and advantages of the present invention are described in detail in the following description. It is to be understood that the present invention is capable of various modifications in the various aspects of the present invention, and is not intended to

2 is a structural exploded view of a narrow-frame touch display device according to a preferred embodiment of the present invention, and FIG. 3 is a partial assembled structural view of a narrow-frame touch display device according to a preferred embodiment of the present invention. FIG. The combination structure diagram of the narrow-frame touch display device of the preferred embodiment of the present invention, and FIG. 5 is a cross-sectional view of the narrow-frame touch display device of FIG. 4 in the AA line segment. As shown in FIG. 2 to FIG. 5, the touch display device 2 of the present invention can be a narrow-frame touch display device such as, but not limited to, a narrow-frame phone and a narrow-frame tablet. The touch display device 2 of the present invention includes a first combination unit 3, a second combination unit 4, a first cover 5 and a second cover 6. The first combination unit 3 includes a touch screen 31 and a carrying device 32. The touch screen 31 is disposed on the carrying device 32, that is, the carrying device 32 is loaded with the touch screen 31. The second combination unit 4 is combined with the first combination unit 3 and includes a housing sleeve 41 and an auxiliary positioning element 42. The outer cover body 41 includes a bottom plate 410, a first side plate 411, a second side plate 412, an upper opening portion 413, a first port portion 414, a second port portion 415, a plurality of first engaging members 416, and an accommodating space 417. The first side plate 411 and the second side plate 412 respectively extend upward from opposite sides of the bottom plate 410. In other words, the bottom plate 410, the first side plate 411 and the second side plate 412 are integrally formed as a single component. A plurality of first engaging elements 416 are disposed on the upper surface of the bottom plate 410. The first combining unit 3 is disposed in the receiving space 417 via the first port portion 414 or the second port portion 415, so that the touch screen 31 passes through the upper opening. The portion 413 is exposed, and the first side plate 411 and the second side The side plate 412 restricts the first combination unit 3 from being detached from the upper opening portion 413. The auxiliary positioning component 42 is slidably disposed between the bottom plate 410 of the outer casing 40 and the first combination unit 3, and includes a plate member 420 and a plurality of second engaging members 421, wherein the plurality of second engaging members The 421 is located on the lower surface of the panel 420 and corresponds to the plurality of first snap elements 416. When the auxiliary positioning component 42 is located at the first position of the bottom plate 410, the plurality of first engaging components 416 are engaged with the plurality of second engaging components 421, so that the first combining unit 3 can slide relative to the outer casing 41. And when the auxiliary positioning component 42 is in the second position of the bottom plate 410, the plurality of first engaging elements 416 are separated from the plurality of second engaging elements 421, and the auxiliary positioning component 42 is abutted against the first combining unit 3, The 俾 cooperates with the first side plate 411 and the second side plate 412 to position the first combination unit 3. The first cover 5 is sleeved on the first port portion 414 of the outer casing 41, and the second cover 6 is sheathed on the second port portion 415 of the outer casing 41.

In this embodiment, as shown in FIG. 5, the touch screen 31 includes a touch panel 311 and a display unit 312. The width of the display unit 312 is greater than the width of the touch panel 311, and the touch panel 311 utilizes, for example, The optical adhesive is attached to the display unit 312 and exposes the opposite side edge portions of the display unit 312. As shown in FIGS. 1 and 5 , the carrying device 32 has a top edge 321 , a first side 322 , a second side 323 , and a bottom 324 , and the touch screen 31 is disposed on the upper surface of the carrying device 32 . The two opposite side edges of the display unit 312 exposed with respect to the touch panel 311 are respectively opposite to the first side 322 and the second side 323 of the carrying device 32 .

In this embodiment, the first engaging element 416 and the second engaging element 421 are respectively a groove and a convex portion, or a convex portion and a concave portion, wherein the convex portion and the concave portion are engaged with each other. In the present embodiment, as shown in FIGS. 1 and 5, the outer casing 41 further includes a first limiting portion 418 and a second limiting portion 419 disposed inside the first side plate 411 and the second side plate 412, respectively. The surface extends from the first port portion 414 to the second port portion 415, respectively. In addition, each of the first side plate 411 and the second side plate 412 of the outer casing 41 is slightly inclined inward or curved toward the accommodating space 417 to form a first narrow frame portion 411a and a second narrow frame portion. 412a. The first limiting portion 418 and the first narrow frame portion 411a of the first side plate 411 can be defined to form a first The second narrowing portion 412a of the second limiting portion 419 and the second side plate 412 may define a second sliding slot R2. When the auxiliary positioning element 42 is located at the first position of the bottom plate 410 of the outer casing 41, the first combination unit 3 can be slipped from the first port portion 414 or the second port portion 415 of the outer casing 41 into the accommodating space. 417. The two opposite side edges of the display unit 312 that are exposed with respect to the touch panel 311 are respectively disposed in the first sliding slot R1 and the second sliding slot R2, and the first side 322 of the carrying device 32 is located. The first limiting portion 418 is opposite to the other side of the first sliding slot R1 and adjacent to the first limiting portion 418. The second side 323 of the carrying device 32 is located at the second limiting portion 419 relative to the second sliding slot. The other side of R2 is adjacent to the second limiting portion 419. The accommodating device 32 is received in the accommodating space 417 of the outer casing 40, and the touch panel 311 of the touch screen 31 is exposed to the upper opening 413 of the outer casing 41, and the first combining unit 3 can be It can be easily slidably removed or placed into the outer casing 41 by an external force. In addition, when the auxiliary positioning component 42 is slid to the second position of the bottom plate 410 of the outer casing 40 by an external force, the first engaging component 421 of the auxiliary positioning component 42 is engaged with the first casing 41. The element 416 is disengaged such that the auxiliary positioning element 42 abuts against the first combination unit 3, in other words, when the auxiliary positioning element 42 is moved from the first position to the second position of the bottom plate 410 of the outer casing 40 via an external force, The auxiliary positioning element 42 will increase the spacing between the first combination unit 3 and the bottom plate 410. At this time, the first side 322 and the second side 323 of the carrying device 32 respectively abut against the first limiting portion 418 and the second limiting portion 419 to restrict movement, thereby enabling the auxiliary positioning component 42 and the first The first limiting portion 418 of the one side plate 411 and the second limiting portion 419 of the second side plate 412 cooperate with each other to position the first combined unit 3.

In the present embodiment, the first side frame 411 and the second narrow frame portion 412a of the first side plate 411 and the second side plate 412 of the outer casing 412 are respectively adjacent to opposite sides of the touch panel 311. And partially covering the two opposite side edge regions exposed by the display unit 312. It should be noted that the widths of the first narrow frame portion 411a and the second narrow frame portion 412a of the outer casing 40 are corresponding to the touch panel 311 and the display unit 312 of the touch screen 31. In some embodiments, the first narrow frame portion 411a and the second narrow frame portion 412a of the outer casing 41 are adjacent to the touch panel 311 of the touch screen 31 to form a coplanar surface, but Limited. The narrower the width of the first narrow frame portion 411a and the second narrow frame portion 412a of the outer casing 40 facilitates the formation of the narrow-frame touch display device 2, which tends to be frameless.

In the present embodiment, as shown in FIGS. 1 and 5 , the first combination unit 3 further includes a circuit board 33 and a battery 34 , wherein the circuit board 33 is assembled to the carrier device 32 and electrically connected to the touch screen 31 . . The battery 34 is connected to the lower side of the carrying device 32 and electrically connected to the circuit board 33 and the touch screen 31 to provide power for the circuit board 33 and the touch screen 31 to operate. In some embodiments, as shown in FIG. 5, the first combination unit 3 further includes a buffering member 35 disposed on the bottom surface of the battery 34 and configured to provide a buffer mechanism to prevent excessive external force and cause the first combination unit. 3 components are damaged.

In some embodiments, as shown in FIG. 2 , the first cover 5 can be first assembled to the carrying device 32 and then covered by the first port portion 414 of the outer casing 41 . The first cover 5 can be first assembled to the top edge 321 of the carrying device 32, and the first cover 5 can be engaged with the carrying device 32 by means of, but not limited to, snapping, bonding, meshing or screw locking. In other embodiments, the first cover 5 and the carrier 32 can be a single component structure that is integrally formed. In some embodiments, the second cover 6 is detachably coupled to the bottom edge 324 of the carrying device 32. The second cover 6 can be engaged with the carrying device 32 by means of, but not limited to, snapping, bonding, Engaged or screwed, etc. In other embodiments, the first cover body 5 and the second cover body 6 are detachably sleeved on the first port portion 414 and the second port portion 415 of the outer casing 40, respectively, and can be respectively coupled to the outer casing 41. The first port portion 414 and the second port portion 415 are joined, and the manner of engagement can be achieved by, but not limited to, snapping, bonding, meshing or screw locking.

6A to 6E are schematic diagrams showing the assembly flow of the narrow-frame touch display device in the BB section in FIG. 4, and FIG. 7 is a flow chart showing the assembly method of the narrow-frame touch display device in the preferred embodiment of the present invention. First, as shown in step S1 of FIG. 6A and FIG. 7 , the first combination unit 3 is provided. The first combination unit 3 includes a touch screen 31 and a carrying device 32. The touch screen 31 is disposed on the carrying device 32. . In some embodiments, the first combination unit 3 further includes a circuit substrate 33, a battery 34, and a buffering member 35 (as shown in FIG. 5), wherein the touch screen 31, the carrying device 32, the circuit substrate 33, the battery 34, and the buffer element The structure, connection relationship and function of 35 are as set out above, and will not be described here. In an embodiment, as shown in FIG. 6B, the first cover 5 is provided, and the first cover 5 is assembled with the carrier 32 of the first combination unit 3. Of course, in other embodiments, the first cover body 5 is assembled to the first combination unit 3 and the second combination unit 4, and then the first port of the outer cover body 41 is overlaid. Section 414 (as shown in Figure 1).

Next, as shown in steps 1 and 6C and step S2 of FIG. 7, a second combination unit 4 is provided, wherein the second combination unit 4 includes a casing cover 41 and an auxiliary positioning member 42, wherein the casing cover 41 includes a bottom plate 410. The first side plate 411, the second side plate 412, the upper opening portion 413, the first port portion 414, the second port portion 415, the plurality of first engaging elements 416 and an accommodating space 417, the first side plate 411 and the second side plate The side plates 412 extend upward from opposite sides of the bottom plate 410, respectively, and a plurality of first engaging elements 416 are disposed on the bottom plate 410, wherein the auxiliary positioning component 42 is slidably disposed on the bottom plate 410 and includes a plurality of second cards. The component 412 corresponds to a plurality of first latching elements 411. The structure, connection relationship and function of the outer casing 41 and the auxiliary positioning component 42 are as described above, and will not be described herein. Thereafter, as shown in steps S3 of FIG. 1, 6C and FIG. 7, the first position P1 of the plate member 420 of the auxiliary positioning member 42 to the bottom plate 410 of the outer casing 41 is moved to form a plurality of first engaging members 416. The first combination unit 3 is inserted into the accommodating space 417 via the first port portion 414 of the outer casing 40, and the touch screen 31 is exposed through the upper opening portion 413. And the first side plate 411 and the second side plate 412 restrict the first combination unit 3 from being detached from the upper opening portion 413. In some embodiments, if the first cover 5 is not first assembled to the first combination unit 3, the first combination unit 3 can be placed into the first port portion 414 or the second port 415 of the outer casing 41. Space 417 is set.

Thereafter, as shown in steps S4 of FIGS. 1 and 6D and FIG. 7, the second member P2 of the plate member 420 of the auxiliary positioning member 42 to the bottom plate 410 of the outer casing 41 is moved to form a plurality of first engaging members 416. Separating from the plurality of second engaging elements 421, and assisting the positioning element 42 to abut against the first combining unit 3, The auxiliary positioning member 42 is engaged with the first side plate 411 and the second side plate 412 of the outer casing 41 to position the first combination unit 3.

Finally, as shown in FIGS. 1 and 6E, the second cover 6 is provided, and the second cover 6 is fitted over the second port portion 415 of the outer casing 41. In some embodiments, if the first cover 5 is not first assembled to the first combination unit 3, the first cover 5 may be further provided and the first cover 5 is firstly sheathed on the outer cover 41. The step of port portion 414.

In summary, the present invention provides an assembly structure and an assembly method of the touch display device, which has a simple structure, can simplify the assembly process, is easy to assemble, disassemble and repair, and can improve the structural strength, and is advantageous for a narrow frame or even a frameless design. It can reduce manufacturing costs and enhance visual perception.

This case has been modified by people who are familiar with the technology, but it is not intended to be protected by the scope of the patent application.

2‧‧‧Touch display device

3‧‧‧First combination unit

31‧‧‧ touch screen

32‧‧‧ Carrying device

33‧‧‧ circuit board

34‧‧‧Battery

321‧‧‧ top side

322‧‧‧ first side

323‧‧‧Second side

324‧‧‧Bottom

4‧‧‧Second combination unit

41‧‧‧Outer casing

42‧‧‧Auxiliary positioning elements

410‧‧‧floor

411‧‧‧First side panel

411a‧‧‧First narrow frame

412‧‧‧ second side panel

412a‧‧‧Second narrow frame

413‧‧‧Upper opening

414‧‧‧First Port Department

415‧‧‧Second Port Department

416‧‧‧First engagement element

417‧‧‧ accommodating space

418‧‧‧First Limitation Department

419‧‧‧Second Limitation

420‧‧‧ boards

421‧‧‧Second snap-in components

5‧‧‧First cover

6‧‧‧Second cover

Claims (15)

An assembly structure of a touch display device, comprising: a first combination unit, comprising a touch screen and a carrying device, wherein the touch screen is disposed on the carrying device; a second combining unit, and the first combination The unit is combined and includes: a casing body including a bottom plate, a first side plate, a second side plate, an upper opening portion, a first port portion, a second port portion, and a plurality of first engaging members And an accommodating space, wherein the first side panel and the second side panel respectively extend upward from opposite sides of the bottom panel, and the plurality of first engaging components are disposed on the bottom panel, wherein the first combining unit is The first port portion or the second port portion is disposed in the accommodating space, the touch screen is exposed through the upper opening portion, and the first side plate and the second side plate restrict the first combination unit from the upper opening portion And an auxiliary positioning component slidably disposed between the bottom plate and the first combination unit, and including a plurality of second engagement elements corresponding to the plurality of first engagement elements, wherein the auxiliary Positioning When the piece is in the first position of the bottom plate, the plurality of first engaging elements are engaged with the plurality of second engaging elements, so that the first combining unit can slide relative to the outer casing; When the auxiliary positioning component is in a second position of the bottom plate, the plurality of first engaging components are separated from the plurality of second engaging components, and the auxiliary positioning component abuts the first combined component, The first side panel and the second side panel cooperate to position the first combination unit. The assembly structure of the touch display device of claim 1, wherein the first engaging component and the second engaging component are respectively a groove and a convex portion, or a convex portion and a concave portion. a groove, wherein the protrusion and the groove are engaged with each other. The assembly structure of the touch display device of claim 1, wherein the outer casing includes a first limiting portion and a second limiting portion, and the first side plate and the second side plate are respectively disposed An inner surface extending from the first port portion to the second port portion, wherein the free end of the first side plate The portion has a first narrow frame portion, and the free end portion of the second side plate has a second narrow frame portion, wherein the first limiting portion of the first side plate defines a first slip with the first narrow frame portion The second limiting portion and the second narrow frame portion of the second side plate define a second sliding slot. The touch screen of the touch display device of claim 3, wherein the touch screen comprises a touch panel and a display unit, wherein the width of the display unit is greater than the width of the touch panel, and The touch panel is attached to the display unit, and the opposite side edge portions of the display unit are exposed. The assembly structure of the touch display device of claim 4, wherein the carrier device has a top edge, a first side edge, a second side edge, and a bottom edge, and the display unit is exposed The two opposite side edges are respectively opposite to the first side and the second side of the carrying device. The assembly structure of the touch display device of claim 5, wherein the first combination unit is from the first port of the outer casing when the auxiliary positioning element is located at the first position of the bottom plate The second port portion is slidably disposed in the accommodating space, wherein the two opposite side edges of the display unit are respectively slidably disposed in the first chute and the second chute, and the carrying device The first side is located at the other side of the first limiting portion relative to the first sliding slot and adjacent to the first limiting portion, and the second side of the carrying device is located at the second limit The seat portion is opposite to the other side of the second chute and adjacent to the second limit portion. The assembly structure of the touch display device of claim 6, wherein the auxiliary positioning member abuts the first when the auxiliary positioning member moves from the first position to the second position of the bottom plate The first side and the second side of the carrying device are in contact with the first limiting portion and the second limiting portion, respectively. The assembly structure of the touch display device of claim 1, wherein the first combination unit further comprises a circuit substrate and a battery, wherein the circuit substrate is assembled to the carrier device The battery is electrically connected to the touch screen, and the battery is connected to the bottom of the carrying device and electrically connected to the circuit substrate and the touch screen. The assembly structure of the touch display device of claim 8, wherein the first combination unit further comprises a buffering member disposed on a bottom surface of the battery. A method for assembling a touch display device, comprising the steps of: (a) providing a first combination unit, wherein the first combination unit comprises a touch screen and a carrying device, wherein the touch screen is disposed on the carrying device; b) providing a second combination unit, wherein the second combination unit comprises a casing sleeve and an auxiliary positioning component, wherein the casing sleeve comprises a bottom plate, a first side plate, a second side plate, an upper opening portion, a first port portion, a second port portion, a plurality of first engaging members, and an accommodating space, wherein the first side plate and the second side plate respectively extend upward from opposite sides of the bottom plate, and the plurality of The first engaging component is disposed on the bottom plate, wherein the auxiliary positioning component is slidably disposed on the bottom plate and includes a plurality of second engaging components; (c) moving the auxiliary positioning component to the first of the bottom plates Positioning, the plurality of first engaging elements are engaged with the plurality of second engaging elements, and the first combining unit is placed through the first port portion or the second port portion of the outer casing The accommodation space allows The touch screen is exposed through the upper opening, and the first side panel and the second side panel restrict the first combination unit from being detached from the upper opening; and (d) moving the auxiliary positioning component to a second position of the bottom plate Separating the plurality of first engaging elements from the plurality of second engaging elements, and the auxiliary positioning elements abut the first combining unit, causing the auxiliary positioning elements to be coupled to the first side panel and the second side The side panels cooperate to position the first combination unit. The method of assembling a touch display device according to claim 10, wherein the outer casing includes a first limiting portion and a second limiting portion, and the first side plate and the second side plate are respectively disposed An inner surface extending from the first port portion to the second port portion, wherein the free end of the first side plate has a first narrow frame portion, and the free end portion of the second side plate has a second narrow frame Department, where The first limiting portion of the first side plate and the first narrow frame portion define a first sliding slot, and the second limiting portion of the second side plate defines a second sliding portion and the second narrow frame portion. groove. The method of assembling a touch display device according to claim 11, wherein the touch screen comprises a touch panel and a display unit, wherein the width of the display unit is greater than the width of the touch panel, and The touch panel is attached to the display unit, and the opposite side edge portions of the display unit are exposed. The method of assembling a touch display device according to claim 12, wherein the carrying device has a top edge, a first side edge, a second side edge and a bottom edge, and the display unit is exposed The two opposite side edges are respectively opposite to the first side and the second side of the carrying device. The method of assembling a touch display device according to claim 13 , wherein in the step (c), when the auxiliary positioning component is located at the first position of the bottom plate, the first combination unit is The first port portion or the second port portion of the outer casing is slidably disposed in the accommodating space, wherein the two opposite side edges exposed by the display unit are respectively slidably disposed on the first chute and the first In the second sliding slot, the first side of the carrying device is located on the other side of the first limiting portion relative to the first sliding slot and adjacent to the first limiting portion, the second of the carrying device The side is located on the other side of the second limiting portion relative to the second sliding slot and adjacent to the second limiting portion. The method of assembling a touch display device according to claim 14, wherein in the step (d), when the auxiliary positioning component is moved from the first position to the second position of the bottom plate, the auxiliary The first component and the second side of the carrying device are in contact with the first limiting portion and the second limiting portion.