TWI557618B - Touch display unit - Google Patents

Description

Touch display unit

The present invention relates to a touch display unit, and more particularly to an on-cell/in-cell touch display unit.

First, please refer to FIG. 1 , where FIG. 1 is a partial cross-sectional view showing a conventional touch display unit 100 . As shown in FIG. 1 , the common touch display unit 100 mainly includes a frame 101 , a bottom plate 102 , a touch module 103 , a liquid crystal display module 104 (LCM), and a backlight module. The bottom plate 102 is fixed to the frame 101, and the touch module 103 and the display module 104 are mutually coupled by Optically Clear Adhesive (OCA), the touch module 103 and the backlight module. The group 105 can be attached to the frame 101 by the double-sided tape B, respectively, whereby the components in the touch display unit 100 can be fixed to each other.

However, the conventional touch display unit often has the disadvantages of large thickness and complicated assembly procedure, and in view of the trend that the touch display continues to be thinner, how to provide a better mechanism design for the touch display unit. The need to reduce the thickness and reduce manufacturing costs has become an important issue.

In order to solve the aforementioned conventional problems, the present invention provides a touch The display unit includes a hollow frame, a backlight module, a back panel, and a touch display module. The front frame has a first recess, the backlight module is disposed in the frame, and the back plate is fixed on the frame and covers the backlight module. The touch display module has a thin film transistor substrate, a liquid crystal layer, a touch sensing circuit and an optical member, wherein the liquid crystal layer and the touch sensing circuit are disposed between the thin film transistor substrate and the optical member. In particular, the width of the aforementioned optical member is larger than the width of the thin film transistor substrate and the liquid crystal layer, and the optical member is incorporated in the aforementioned first groove.

In an embodiment, the optical member includes a filter.

In one embodiment, the optical component further includes a polarizer, wherein the polarizer is connected to the filter and exposed on one side of the touch display unit.

In one embodiment, the touch sensing circuit is formed on a surface of the optical member.

In one embodiment, the touch sensing circuit is formed between the liquid crystal layer and the optical member.

In one embodiment, the touch sensing circuit is formed between the liquid crystal layer and the thin film transistor substrate.

In one embodiment, the touch display module further includes a polarizer, and the thin film transistor substrate is located between the polarizer and the liquid crystal layer.

In one embodiment, the frame body further has a second recess, and the width of the backboard is greater than the width of the backlight module, wherein the backplane is coupled to the second recess.

In an embodiment, the back plate has a glass, plastic, metal or carbon fiber material.

In one embodiment, the optical member is fixedly secured in the first recess.

The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims.

100‧‧‧Touch display unit

101‧‧‧ frame

102‧‧‧floor

103‧‧‧Touch Module

104‧‧‧LCD module

105‧‧‧Backlight module

200‧‧‧Touch display unit

210‧‧‧ Backplane

220‧‧‧Backlight module

221‧‧‧reflector

222‧‧‧Light guide plate

223‧‧‧Diffuse film

230‧‧‧Touch display module

231‧‧‧ polarizer

232‧‧‧Thin film transistor substrate

233‧‧‧Liquid layer

234‧‧‧Optical components

240‧‧‧ frame

241‧‧‧First groove

242‧‧‧second groove

A‧‧‧Optical adhesive

B‧‧‧Double-sided tape

The following is a detailed description of the embodiments of the present invention, which will be understood to provide a partial cross-sectional view of a conventional touch display unit, and FIG. 2 is a touch display of an embodiment of the present invention. FIG. 3 is a schematic diagram showing the combination of the touch display module 230 and the frame 240 in FIG. 2; and FIG. 4 is a combination of the backlight module 220 and the frame 240 in FIG. FIG. 5 is a schematic view showing the combination of the backing plate 210 and the frame 240 in FIG.

The connector of the embodiment of the present invention will be described below. However, it will be readily understood that the embodiments of the present invention are susceptible to many specific embodiments of the invention and can The specific embodiments disclosed are merely illustrative of the invention, and are not intended to limit the scope of the invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning The same meaning. It will be understood that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant art and the context or context of the present disclosure, and should not be in an idealized or overly formal manner. Interpretation, unless specifically defined herein.

Referring to FIG. 2, the touch display unit 200 of the present invention mainly includes a backplane 210, a backlight module 220, a touch display module 230, and a hollow frame 240. As shown in FIG. 2, the inner surface of the frame body 240 is formed with a first recess 241 and a second recess 242. The backlight module 220 is, for example, an edge type or a direct type (Direct). The backlight module is composed of a reflector 221, a light guide plate 222, a diffusion sheet 223, and a plurality of light sources (not shown).

In addition, the touch display module 230 includes a polarizer 231 , a thin film transistor substrate 232 , a liquid crystal layer 233 , and an optical member 234 . In this embodiment, a touch sensing circuit (not shown) is formed on the surface of the optical member 234, for example, between the liquid crystal layer 233 and the optical member 234; however, the touch sensing circuit may be formed on the touch sensing circuit. Between the liquid crystal layer 233 and the thin film transistor substrate 232, an in-cell touch display module 230 in the form of an On-cell or an In-cell can be formed, thereby simplifying the structure of the touch module and saving Manufacturing costs and the purpose of product thinning.

Referring to FIG. 3 , when the touch display unit 200 is to be assembled, the touch display module 230 can be combined with the frame 240 . In detail, since the width of the optical member 234 in the embodiment is larger than the widths of the polarizer 231, the thin film transistor substrate 232, and the liquid crystal layer 233, the edge of the optical member 234 can be directly bonded to the frame 240 during assembly. The first groove 241 on the inner side (such as the third As shown in the figure, the optical member 234 is bonded to the inner side surface of the first recess 241 by an adhesive or a double-sided tape so that the optical member 234 and the frame 240 can be firmly coupled to each other. For example, the optical member 234 may include only a filter; however, the optical member 234 may also be composed of a filter and a polarizer. The polarizer is connected to the filter and exposed to the touch display unit 200. One side.

Please refer to FIG. 4 and FIG. 5 again. After the touch display module 230 and the frame 240 are combined with each other, the backlight module 220 can be installed in the frame 240 (FIG. 4), and then The back plate 210 is coupled to the second recess 242 of the frame 240 (FIG. 5). The width of the back plate 210 is greater than the width of the backlight module 220. Thus, the assembly process of the entire touch display unit 200 can be substantially completed. In the present embodiment, the backplane 210 can be made of glass, plastic, metal or carbon fiber, and the backplane 210 covers the backlight module 220 after assembly, thereby protecting the internal components of the touch display unit 200.

In summary, the present invention mainly provides a touch display unit that includes an in-cell touch display module 230 in the form of an On-cell or an In-cell. It should be noted that, in the present invention, the optical member 234 can be directly bonded to the frame by making the width of the optical member 234 in the in-cell touch display module 230 larger than the width of the thin film transistor substrate 232 and the liquid crystal layer 233. The first recess 241 on the inner side of the 230 does not need to be additionally provided with a transparent cover or glass, thereby greatly saving material cost and effectively reducing the overall thickness of the touch display unit 200 for the purpose of thinning the product.

Although the embodiment of the present invention and its advantages have been disclosed above, it should be understood that any person having ordinary knowledge in the technical field does not deviate from the present invention. In the spirit and scope of the Ming, when it can be changed, replaced and retouched. In addition, the scope of the present invention is not limited to the processes, machines, manufacture, compositions, devices, methods, and steps in the specific embodiments described in the specification. Any one of ordinary skill in the art can. The processes, machines, fabrications, compositions, devices, methods, and procedures that are presently or in the future are understood to be used in accordance with the present invention as long as they can perform substantially the same function or achieve substantially the same results in the embodiments described herein. Accordingly, the scope of the invention includes the above-described processes, machines, manufactures, compositions, devices, methods, and steps. In addition, the scope of each of the claims constitutes an individual embodiment, and the scope of the invention also includes the combination of the scope of the application and the embodiments.

The ordinal numbers in the specification and the scope of the patent application, such as "first", "second", etc., have no sequential relationship with each other, and are only used to indicate that two different elements having the same name are distinguished.

The present invention has been described above with reference to the preferred embodiments thereof, and is not intended to limit the scope of the present invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

200‧‧‧Touch display unit

210‧‧‧ Backplane

220‧‧‧Backlight module

221‧‧‧reflector

222‧‧‧Light guide plate

223‧‧‧Diffuse film

230‧‧‧Touch display module

231‧‧‧ polarizer

232‧‧‧Thin film transistor substrate

233‧‧‧Liquid layer

234‧‧‧Optical components

240‧‧‧ frame

241‧‧‧First groove

242‧‧‧second groove

Claims (9)

A touch display unit includes: a hollow frame having a first recess; a backlight module disposed in the frame; a back plate fixed to the frame and covering the backlight module; A touch display module has a thin film transistor substrate, a liquid crystal layer, a touch sensing circuit, and an optical member. The liquid crystal layer and the touch sensing circuit are disposed on the thin film transistor substrate and the optical member. Between the optical member having a width greater than a width of the thin film transistor substrate and the liquid crystal layer, and the optical member is coupled to the first recess; wherein the frame further has a second recess, and the frame The width of the backboard is greater than the width of the backlight module, wherein the backplane is coupled to the second recess. The touch display unit of claim 1, wherein the optical member comprises a filter. The touch display unit of claim 2, wherein the optical component further comprises a polarizer connected to the filter and exposed on one side of the touch display unit. The touch display unit of claim 1, wherein the touch sensing circuit is formed on a surface of the optical member. The touch display unit of claim 1, wherein the touch sensing circuit is formed between the liquid crystal layer and the optical member. The touch display unit of claim 1, wherein the touch sensing circuit is formed between the liquid crystal layer and the thin film transistor substrate. The touch display unit of claim 1, wherein the touch The control display module further includes a polarizer, and the thin film transistor substrate is located between the polarizer and the liquid crystal layer. The touch display unit of claim 1, wherein the back panel has a glass, plastic, metal or carbon fiber material. The touch display unit of claim 1, wherein the optical member is adhesively fixed in the first recess.