TW201545018A - Touch display device and method for producing the same - Google Patents

Abstract

This invention provides a touch display device that comprises a frame assembly, a touch-sensitive unit and a display unit. The frame assembly includes a lateral frame portion. The touch-sensitive unit is configured to generate a touch-sensing signal, and includes a main portion and a light-absorbing layer. The main portion is disposed in the frame assembly, and has an upper surface, a lower surface opposite to the upper surface, and a lateral surface connecting the upper surface and the lower surface. The lateral surface of the main portion is spaced apart from the lateral frame portion of the frame assembly. The light-absorbing layer has a low reflectivity, and is disposed on the lateral surface of the main portion with its upper end and lower end extending to the outer edge of the upper surface of the main portion and the outer edge of the lower surface of the main portion, respectively. The display unit is configured to output a screen image, and is disposed in the frame assembly with its upper surface facing the lower surface of the main body. The light-absorbing layer can absorb image light generated by the display unit and prevent the image light from passing through a space between the frame assembly and the touch unit.

Description

Touch display device and method of manufacturing same

The present invention relates to a touch display device and a method of fabricating the same, and more particularly to a method of manufacturing a touch unit, a display unit, and an outer frame assembly.

At present, the common touch screen, such as the Republic of China Announcement No. I410719 patent, usually includes a frame, a touch module, a display module and the like. The touch module and the display module are installed in the outer frame through an assembly program for the user to use. However, since the touch module and the display module are assembled, there is usually a gap between the two and the outer frame, so that the light emitted by the display module is generated between the touch module, the display module, and the outer frame. After the secondary reflection, it may pass through from the aforementioned gap, thus causing a problem of light leakage on the surface of the touch screen.

Accordingly, it is an object of the present invention to provide a touch display device that avoids the problem of light leakage from the screen.

Thus, the touch display device of the present invention comprises an outer frame assembly a touch unit and a display unit. The outer frame assembly includes a side frame plate that is rounded. The touch unit is configured to generate a touch sensing signal, and includes a main body and a light absorbing layer. The main body is disposed in the outer frame assembly and has a top surface, a bottom surface spaced apart from the top surface, and a side wall surface connecting the top surface and the bottom surface, the side wall surface corresponding to and spaced from the side of the outer frame assembly Frame board. The light absorbing layer has low light reflectivity and is disposed on the side wall surface of the body and extends to the outer edge of the top surface of the body and the outer edge of the bottom surface. The display unit is configured to generate an image frame disposed in the outer frame assembly and corresponding to a bottom surface of the main body of the touch unit.

In one embodiment, the outer edge of the top surface of the body extends obliquely from the top surface of the body toward the side frame to the side wall surface of the body; the outer edge of the bottom surface of the body is the main body The bottom surface extends obliquely to the side frame surface of the main body.

In one embodiment, the display unit includes a liquid crystal module, a light source module, and a light reflecting portion. The light source module and the light reflecting portion are respectively disposed on opposite sides of the liquid crystal module, and the light source module Between the liquid crystal module and the touch unit.

Preferably, the touch unit further includes a shielding layer, and the shielding layer is opaque, and is disposed on a bottom surface of the main body of the touch unit and adjacent to the side wall surface.

Preferably, the light absorbing layer is filled between the side frame plate of the outer frame assembly and the side wall surface of the main body.

Another object of the present invention is to provide a method for manufacturing the touch display device, comprising the steps of: preparing an outer frame component and a touch And a display unit, the outer frame assembly includes a surrounding side frame plate, the touch unit includes a main body and a light absorbing layer, the light absorbing layer is disposed on the side wall surface of the main body and extends to the main body The outer edge of the top surface and the outer edge of the bottom surface; the touch unit and the display unit are mounted on the outer frame assembly, such that the light absorbing layer of the touch unit is located at the main body of the touch unit and the outer frame assembly Between the side frame plates, and the position of the display unit corresponds to the bottom surface of the body of the touch unit.

Preferably, the outer edge of the top surface of the main body extends obliquely from the top surface of the main body toward the side frame to the side wall surface of the main body; the outer edge of the bottom surface of the main body is from the bottom surface of the main body The direction of the side frame plate extends obliquely to the side wall surface of the main body; the method for preparing the touch unit includes: preparing a main body of the plurality of touch units; and stacking the main bodies of the touch units with each other to make the sides of the main body The wall surfaces are aligned with each other; a low light reflecting material is applied to the outer edges of the side walls of the main body, the outer edge of the top surface, and the outer edge of the bottom surface to form the light absorbing layer; and the touch units are separated. Wherein, the light absorbing layer is formed by a dispensing technique, a spraying technique or a printing technique.

Another manufacturing method of the present invention includes the following steps: preparing an outer frame assembly, a touch unit, and a display unit, the outer frame assembly including a surrounding side frame plate, the touch unit including a main body. The main body has a top surface, a bottom surface spaced apart from the top surface, and a side wall surface connecting the top surface and the bottom surface; the touch unit and the display unit are mounted on the outer frame assembly to make the side of the main body The wall position is corresponding to and spaced apart from the side frame plate, and the display unit position corresponds to the bottom surface of the main body of the touch unit; a low light reflecting material is formed between the side wall surface of the main body and the side frame plate A light absorbing layer covering the side wall surface of the body and extending to an outer edge of the top surface of the body and an outer edge of the bottom surface.

The effect of the present invention is that the touch display device can prevent the light emitted by the display unit from overflowing from the gap between the touch unit and the outer frame assembly by disposing the light absorbing layer between the touch unit and the outer frame assembly. Reduce light leakage problems. Further, in the manufacturing method of the present invention, mass production of a touch display device having a light absorbing layer can be realized.

1‧‧‧Touch display device

2‧‧‧Outer frame components

21‧‧‧ bottom frame

22‧‧‧ side frame

3‧‧‧Touch unit

31‧‧‧ Subject

311‧‧‧ top surface

312‧‧‧ bottom

313‧‧‧ side wall

314‧‧‧ outer edge

315‧‧‧ outer edge

32‧‧‧Shielding layer

33‧‧‧Light absorbing layer

4‧‧‧ display unit

41‧‧‧LCD Module

42‧‧‧Light source module

43‧‧‧Reflection Department

A, B‧‧ ‧ gap

S01~S02‧‧‧ Process steps

S11~S14‧‧‧ Process steps

S21~S23‧‧‧ Process steps

DA‧‧·visible area

The other features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. FIG. 1 is a top view illustrating a preferred embodiment of the touch display device of the present invention; 1 is a side view in the direction of II-II of FIG. 1; FIG. 3 is a specific embodiment of FIG. 2; FIG. 4 is a flowchart illustrating an embodiment of a method of manufacturing the touch display device of the present invention; FIG. 6 is a schematic view showing the preparation of the touch unit of the present invention; FIG. 7 is a flow chart showing another embodiment of the method for manufacturing the touch display device of the present invention; and FIG. Schematic diagram of the preparation of 7.

The foregoing and other technical contents, features and work related to the present invention The details will be apparent from the following detailed description of a preferred embodiment of the drawings.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1 and FIG. 2, FIG. 1 is a preferred embodiment of the touch display device 1 of the present invention, and FIG. 2 is a side view taken along line II-II of FIG. The touch display device 1 can be applied to various electronic devices such as a mobile phone, a tablet computer, a personal computer, a television, and the like, and includes an outer frame component 2, a touch unit 3, and a display unit 4.

The outer frame assembly 2 is a member for mounting the touch unit 3 and the display unit 4, and includes a bottom frame plate 21 in a hollow square shape and a side frame plate disposed on the bottom frame plate 21 and surrounding the frame. twenty two. The bottom frame plate 21 and the side frame plate 22 can be made of various materials such as metal and plastic, and can be an integrated structure or an assembled structure, and are not limited to specific aspects.

The touch unit 3 is configured to generate a touch sensing signal, and includes a main body 31, a shielding layer 32, and a light absorbing layer 33.

The main body 31 is a main structure of the touch unit 3, and is disposed in the outer frame assembly 2, and includes components such as a substrate, a touch electrode, and a circuit wiring, which are not drawn in the drawing, and has a top surface 311 and a top surface. The bottom surface 312 of the 311 and a side wall surface 313 connecting the top surface 311 and the bottom surface 312. The side wall surface 313 is correspondingly positioned and spaced apart from the side frame plate 22 of the outer frame assembly 2, and a gap A exists between the side frame plate 22 and the side frame plate 22. In the present embodiment, since the substrate contained in the main body 31 is a glass substrate, the top surface 311 of the main body 31 and the periphery of the bottom surface 312 are respectively formed according to the processing characteristics at the time of cutting and manufacturing of the glass substrate. Beveled outer edges 314 and 315. The outer edge 314 of the top surface 311 of the main body 31 extends obliquely outward from the top surface 311 of the main body 31 toward the side frame 22 to the side wall surface 313 of the main body 31, and is located at the outer edge of the bottom surface 312 of the main body 31. 315 is inclined from the bottom surface 312 of the main body 31 toward the side frame plate 22 and extends outward to the side wall surface 313 of the main body 31. However, in different embodiments, the outer edge contour of the body 31 may also be formed into different shapes depending on the processing mode and material properties, and is not limited to the contents disclosed herein.

The black mask (BM) 32 is made of a light-shielding material (for example, black ink), and is disposed on the bottom surface 312 of the main body 31 and adjacent to the sidewall surface 313 for shielding the conductive line of the touch unit 3, and can also be defined. The visible area DA. In some embodiments, the shielding layer 32 is disposed between the bottom surface 312 and the top surface 311 of the main body 31 and adjacent to the side wall surface 313, not limited to the aforementioned setting position.

The light absorbing layer 33 is made of a material having low light reflectivity such as ink, photoresist, liquid glue, black foam, black tape, etc., and is disposed on the side wall surface 313 of the main body 31 and extends to the outer edge of the top surface 311 of the main body 31. The outer edge 315 of the bottom surface 312 and the bottom surface 312 can fill the gap A between the main body 31 and the outer frame assembly 2, so as to avoid the light leakage problem caused by the light emitted from the display unit 4 being transmitted through the gap A after multiple reflection. In the present embodiment, since the light absorbing layer 33 is disposed not only on the side wall surface 313 of the main body 31 but also extends to the top surface 311 and the bottom surface 312 of the main body 31, a good light absorbing effect can be provided. However, according to different needs, the arrangement position of the light absorbing layer 33 can be adjusted correspondingly, and is not limited to the content disclosed herein.

The display unit 4 is disposed in the outer frame assembly 2, and the position corresponds to The bottom surface 312 of the main body 31 of the touch unit 3 is used to generate an image for viewing by a user. In this embodiment, the display unit 4 adopts a liquid crystal display technology, and correspondingly displays an image screen by setting a backlight or a front light.

Referring to Figures 2 and 3, Figure 3 is a particular embodiment of Figure 2. When the display unit 4 is in the front light source configuration as shown in FIG. 3, it includes a liquid crystal module 41, a light source module 42, and a light reflecting portion 43. The light source module 42 and the light reflecting portion 43 are respectively disposed on opposite sides of the liquid crystal module 41, and the light source module 42 is interposed between the liquid crystal module 41 and the touch unit 3, and the liquid source provides the liquid crystal in the manner of the former light source. The light source required for the module 41. In this embodiment, since the front light source type light source module 42 is closer to the surface of the touch unit 3 and the touch display device 1 than the backlight type, the light emitted by the light source module 42 is as shown in FIG. A significant light reflection phenomenon occurs between the outer frame assembly 2, the touch unit 3, and the display unit 4 due to the strong light intensity. However, according to the arrangement and light absorbing characteristics of the light absorbing layer 33 of the present embodiment, the light absorbing layer 33 can ensure that light is not transmitted from the gap A in this state, so as to enhance the appreciation quality of the user viewing the image. . However, the light source module 42 herein is described as a configuration of the previous light source. However, the light source module 42 may be configured as a backlight after adjusting the internal structure, and the display unit 4 may omit reflection. The setting of the part 43. Therefore, the above description is only for the description of the embodiment, and should not limit the scope of the invention.

2 and 4, FIG. 4 is a view showing an embodiment of a method of manufacturing the touch display device 1 of the present invention.

Step S01: This step is a pre-preparation step. Specifically, the foregoing outer frame assembly 2, the touch unit 3, and the display unit 4 are separately prepared to facilitate the subsequent assembly process. In this step, the outer frame assembly 2 needs to be pre-formed with the bottom frame plate 21 and the side frame plate 22, and the touch unit 3 is prepared with the shielding layer 32 and the light absorbing layer 33, and the display unit 4 is also completed. Must be prepared in advance. The process of fabricating the light absorbing layer 33 of the touch unit 3 will be further described in the subsequent paragraphs.

Step S02: This step is an assembly process, in which the touch unit 3 and the display unit 4 are mounted on the outer frame assembly 2, so that the light absorbing layer 33 of the touch unit 3 is located in the main body 31 of the touch unit 3 and the outer frame. The gap between the side frame plates 22 of the component 2 fills the gap A, and the position of the display unit 4 corresponds to the bottom surface 312 of the main body 31 of the touch unit 3 to display an image.

Therefore, according to the above manufacturing steps, the light absorbing layer 33 is completed in step S01, and step S02 is only an assembly process.

Referring to FIG. 2, FIG. 5 and FIG. 6, FIG. 5 is a flow chart for explaining the preparation process of the touch unit of the present invention, and FIG. 6 is a schematic diagram of the preparation of the touch unit. Regarding the production of the light absorbing layer 33 in the above step S01, the present invention proposes a manufacturing technique suitable for mass production, which will be described below.

Step S11: This step is to prepare the main body 31 of the plurality of touch units 3 for later use.

Step S12: In this step, the main bodies 31 of the touch units 3 are stacked on each other such that the side wall surfaces 313 of the main body 31 are aligned with each other. At this time, according to the side edge contour of the main body 31, the boundary between the outer edge 314 and the top surface 311 of each main body 31 may be between the outer edge 315 and the bottom surface 312 of the adjacent main body 31. The boundaries are aligned next to each other to form a continuous high and low undulating processing plane. In some embodiments, the boundary between the outer edge 314 of each body 31 and the top surface 311 will be immediately adjacent to the boundary between the outer edge 314 and the top surface 311 of the adjacent body 31, and each body 31 The boundary between the outer edge 315 and the bottom surface 312 will be aligned with the boundary between the outer edge 315 and the bottom surface 312 of the adjacent body 31 to form a continuous high and low undulating processing plane.

Step S13: This step is to apply a light-reflecting material to the sidewall 313 of the main body 31, the outer edge 314 of the top surface 311, and the outer edge 315 of the bottom surface 312 to form a light absorbing layer 33, for example, by using FIG. The dispensing technique is formed by coating the colloid 5. However, in different implementations, the step of fabricating the light absorbing layer 33 may be performed by spraying, printing, or the like, and is not limited to a specific technique.

Step S14: After the light absorbing layer 33 prepared in step S13 is solidified and formed, the touch unit 3 is separated, and the batch processing process of the light absorbing layer 33 can be completed.

Referring to FIG. 2, FIG. 7, and FIG. 8, FIG. 7 is a flow chart illustrating a flow chart of another embodiment of the method for fabricating the touch display device of the present invention, and FIG. 8 is a schematic view of the process of FIG. In addition to the above-described manufacturing methods for steps S01 to S02, S11 to S14, the present invention also proposes another manufacturing method, which is mainly different from the above-described manufacturing method in that the light absorbing layer 33 is produced at the end of the assembly process, as explained below. .

Step S21: This step is similar to step S01, and is also a preparation step of the outer frame component 2, the touch unit 3, and the display unit 4. In this step, the outer frame The preparation state of the component 2 and the display unit 4 is the same as that of step S01, but only the shielding layer 32 is provided on the main body 31 of the touch unit 3, and the light absorbing layer 33 is not formed.

Step S22: This step is similar to step S02, which is also an assembly step of the outer frame component 2, the touch unit 3 and the display unit 4. The touch unit 3 and the display unit 4 are mounted on the outer frame assembly 2, so that the main body 31 is The sidewall surface 313 is correspondingly positioned and spaced apart from the side frame 22, and the display unit 4 is positioned corresponding to the bottom surface 312 of the body 31 of the touch unit 3.

Step S23: This step is a manufacturing step of the light absorbing layer 33. Specifically, as shown in FIG. 8, the gap B between the outer frame assembly 2 and the main body 31 is filled with a low light reflecting material to form a light absorbing layer 33, and the light absorbing layer 33 is allowed. The side wall surface 313 of the main body 31 is covered and extends to the outer edge 314 of the top surface 311 of the main body 31 and the outer edge 315 of the bottom surface 312 to provide light absorption.

In summary, the touch display device 1 of the present invention can effectively solve the problem of light leakage from the gap between the main body 31 and the outer frame assembly 2 by the arrangement of the light absorbing layer 33. Further, according to the manufacturing method of the present invention, mass production of the touch display device 1 having the light absorbing layer 33 can be realized. Therefore, the touch display device 1 of the present invention and the method of manufacturing the same can indeed achieve the object of the present invention.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

1‧‧‧Touch display device

2‧‧‧Outer frame components

21‧‧‧ bottom frame

22‧‧‧ side frame

3‧‧‧Touch unit

31‧‧‧ Subject

311‧‧‧ top surface

312‧‧‧ bottom

313‧‧‧ side wall

314‧‧‧ outer edge

315‧‧‧ outer edge

32‧‧‧Shielding layer

33‧‧‧Light absorbing layer

4‧‧‧ display unit

A‧‧‧ gap

Claims (9)

A touch display device includes: an outer frame assembly including a surrounding side frame; a touch unit for generating a touch sensing signal, including a main body, disposed in the outer frame assembly, and having a top surface, a bottom surface spaced apart from the top surface, and a side wall surface connecting the top surface and the bottom surface, the side wall surface corresponding to and spaced apart from the side frame plate of the outer frame assembly, and a light absorbing layer, low The reflective property is disposed on the side wall surface of the main body and extends to the outer edge of the top surface of the main body and the outer edge of the bottom surface; and a display unit for generating an image frame, disposed in the outer frame assembly, and the position is The bottom surface of the body of the touch unit should be touched. The touch display device of claim 1, wherein an outer edge of the top surface of the body extends obliquely from a top surface of the main body toward the side frame to a side wall surface of the main body; The outer edge extends obliquely from the bottom surface of the main body toward the side frame plate to the side wall surface of the main body. The touch display device of claim 1, wherein the display unit comprises a liquid crystal module, a light source module and a light reflecting portion, wherein the light source module and the light reflecting portion are respectively disposed opposite to the liquid crystal module And the light source module is interposed between the liquid crystal module and the touch unit. The touch display device of claim 1, wherein the touch unit further comprises a shielding layer, wherein the shielding layer is opaque, and is disposed on a bottom surface of the main body of the touch unit and adjacent to the side wall surface. The touch display device of claim 1, wherein the light absorbing layer is filled between the side frame of the outer frame assembly and a side wall surface of the main body. A method for manufacturing a touch display device includes the steps of: preparing an outer frame assembly, a touch unit, and a display unit, wherein the outer frame assembly includes a surrounding side frame plate, the touch unit includes a main body and a light absorbing layer disposed on a side wall surface of the main body and extending to an outer edge of the top surface of the main body and an outer edge of the bottom surface; the touch unit and the display unit are mounted on the outer frame assembly, The light absorbing layer of the touch unit is located between the main body of the touch unit and the side frame of the outer frame assembly, and the display unit is positioned corresponding to the bottom surface of the main body of the touch unit. The manufacturing method according to claim 6, wherein the outer edge of the top surface of the main body is inclined from the top surface of the main body toward the side frame plate to the side wall surface of the main body; the outer edge of the bottom surface of the main body The body of the body is inclined to the side wall of the body and extends to the side wall of the body; the method for preparing the touch unit includes: preparing a body of the plurality of touch units; and stacking the bodies of the touch units Aligning the side wall surfaces of the main bodies with each other; applying a low light reflecting material to the outer edges of the side walls of the main body, the outer edge of the top surface, and the outer edge of the bottom surface to form the light absorbing layer; and the touch unit Separation. The manufacturing method according to claim 7, wherein the light absorbing layer is formed by a dispensing technique, a spraying technique or a printing technique. A method for manufacturing a touch display device includes the steps of: preparing an outer frame assembly, a touch unit, and a display unit, wherein the outer frame assembly includes a surrounding side frame plate, and the touch unit includes a main body. The main body has a top surface, a bottom surface spaced apart from the top surface, and a side wall surface connecting the top surface and the bottom surface; the touch unit and the display unit are mounted on the outer frame assembly to make the side of the main body The wall surface is corresponding to and spaced apart from the side frame plate, and the display unit position corresponds to the bottom surface of the main body of the touch unit; and a low light reflecting material is filled between the side wall surface of the main body and the side frame plate to form a light An absorbing layer covering the side wall surface of the body and extending to an outer edge of the top surface of the body and an outer edge of the bottom surface.