CN212433740U - Touch display device of leak protection light - Google Patents
Touch display device of leak protection light Download PDFInfo
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- CN212433740U CN212433740U CN202021140280.3U CN202021140280U CN212433740U CN 212433740 U CN212433740 U CN 212433740U CN 202021140280 U CN202021140280 U CN 202021140280U CN 212433740 U CN212433740 U CN 212433740U
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Abstract
The disclosure relates to the technical field of touch control, and provides a light leakage prevention touch control display device, which comprises a display module, a first adhesion layer, a touch control sensing film and at least one protective layer. The display module comprises an upper surface, a side surface and a lower surface. The first adhesive layer is arranged on the upper surface of the display module, extends and bends to the lower surface through the side surface, and the touch sensing film is arranged on the first adhesive layer. The at least one protective layer is arranged on one of the side surface and the lower surface of the touch sensing film, which is opposite to the display module. At least one of the first adhesive layer and/or the protective layers arranged on the side surface of the display module is made of opaque material, so that the effect of reducing the whole thickness of the machine body is achieved.
Description
Technical Field
The present disclosure relates to a touch display device, and more particularly, to a touch display device for preventing light leakage.
Background
In recent years, with the development of touch panels, touch panels have been widely used in various electronic devices. Currently, narrow bezel and full screen are the current trends. In the prior art, the narrow frame design is realized by reversely folding the line area on the side edge of the touch sensing film to the back of the liquid crystal module.
However, the reverse design also increases the overall thickness of the touch display device. Therefore, how to make the touch display device thinner and lighter is a need for improvement in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of visibility of the metal conductor and overcome the defects of the prior art, an object of the present disclosure is to provide a light leakage prevention touch display device, in which the protective layer or the first adhesive layer is selected to be made of a light-tight material to reduce the overall thickness of the touch display device.
One embodiment of the disclosure provides a light leakage prevention touch display device, which includes a display module, a first adhesive layer, a touch sensing film, and at least one protective layer. The display module comprises an upper surface, a side surface and a lower surface. The first adhesive layer is arranged on the upper surface of the display module, extends and bends to the lower surface through the side surface, and the touch sensing film is arranged on the first adhesive layer. The protective layer is arranged on one of the side surface and the lower surface of the touch sensing film opposite to the display module, wherein the first adhesion layer arranged on the side surface of the display module is an opaque adhesion layer and/or the protective layer is an opaque protective layer.
In some embodiments, the display module comprises a backlight module and a polarizer disposed on the backlight module, wherein the first adhesive layer disposed on the upper surface of the display module is attached to the polarizer.
In some embodiments, the first adhesive layer is disposed at one end of the lower surface of the display module and adjacent to the side surface of the display module.
In some embodiments, the touch display device further includes two protective layers respectively disposed on two sides of the touch sensing film opposite to the side surface and the lower surface of the display module, wherein at least one of the protective layers is an opaque protective layer.
In some embodiments, the protective layer further extends to an end of the upper surface of the display module and is adjacent to the side surface of the display module.
In some embodiments, the protective layer has a thickness of between 5 microns and 18 microns.
In some embodiments, the protective layer has an impedance of between 109Ohm to 1012Ohm.
In some embodiments, the opaque adhesive layer and/or the opaque protective layer has an optical density value of 4.5 or more.
In some embodiments, the opaque adhesive layer is a black high-impedance ink adhesive layer and/or the opaque protective layer is a black high-impedance ink protective layer.
In some embodiments, the light leakage prevention touch display device further includes a cover plate disposed on an upper surface of the touch sensing film opposite to the display module.
In some embodiments, the light leakage prevention touch display device further includes a second adhesive layer disposed between the cover plate and the touch sensing film disposed on the upper surface of the display module.
Drawings
Fig. 1 is a cross-sectional view illustrating a touch display apparatus for preventing light leakage according to an embodiment of the present disclosure;
fig. 2 is a cross-sectional view illustrating a touch display apparatus for preventing light leakage according to another embodiment of the present disclosure;
fig. 3 is a cross-sectional view illustrating a touch display apparatus for preventing light leakage according to still another embodiment of the present disclosure.
Detailed Description
The present disclosure is described in further detail below with reference to the accompanying drawings and the detailed description.
To make the description of the present disclosure more complete and complete, the following description is given of embodiments and examples of the present disclosure, but this is not intended to be the only form in which the embodiments of the present disclosure may be practiced or utilized. The various embodiments disclosed below may be combined with or substituted for one another where appropriate, and additional embodiments may be added to one embodiment without further recitation or description. In the following description, numerous specific details are set forth to provide a thorough understanding of the following embodiments. However, embodiments of the present disclosure may be practiced without these specific details.
In addition, spatially relative terms, such as "lower," "upper," and the like, are used herein to facilitate describing one element or feature relative to another element or feature in the figures. These spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As used herein, the terms "a" and "an" can refer broadly to a single or a plurality of items, unless the context specifically states otherwise. It will be further understood that the terms "comprises," "comprising," "includes," "including" and similar terms, when used herein, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of other features, regions, integers, steps, operations, elements, components, and/or groups thereof.
The touch display device for preventing light leakage of the present disclosure is illustrated in detail by the following examples and experimental examples, which are only for illustrative purposes and are not intended to limit the present disclosure, and the scope of the present disclosure is defined by the appended claims.
Example 1
Fig. 1 is a cross-sectional view of a touch display device for preventing light leakage according to an embodiment of the present disclosure. The light leakage prevention touch display device 100 includes a display module 110, a first adhesive layer 120, a touch sensing film 130, at least one protective layer 140, a second adhesive layer 150, and a cover plate 160.
The display module 110 has an upper surface 1101, a side surface 1102, and a lower surface 1103. The display module 110 includes a backlight module 111 and a polarizer 112, and the polarizer 112 is disposed on the backlight module 111. In one embodiment, the display module 110 further includes a display panel (not shown) disposed between the backlight module 111 and the polarizer 112, the backlight module 111 has an exit surface 1111 and a side surface 1112, wherein the exit surface 1111 is adjacent to the display panel, and the side surface 1112 of the backlight module 111 is connected to the exit surface 1111 of the backlight module 111. In one embodiment, the display panel has an active device array substrate and a display medium layer such as a liquid crystal layer and an organic light emitting layer. The active component array substrate can comprise a plurality of active components to control the characteristics of the display medium layer so as to achieve brightness change. It should be understood that the polarizer 112 is not necessarily disposed. In some other embodiments, the polarizer 112 may be omitted.
The first adhesive layer 120 is adhered to the display module 110, and specifically, the first adhesive layer 120 is adhered to the upper surface 1101, the side surface 1102, and the lower surface 1103 of the display module 110. In one embodiment, the first adhesive layer 120 is adhered to one end of the upper surface 1101, the side surface 1102 and the lower surface 1103 of the display module 110 adjacent to the side surface 1102. Specifically, the first adhesive layer 120 is disposed on the upper surface 1101 of the display module 110, and extends to the side surface 1102 and the lower surface 1103 partially adjacent to the side surface 1102, so that the first adhesive layer 120 is bent at the side surface 1102 and slightly extends to the lower surface 1103. In one embodiment, a portion of the first adhesive layer 120 is adhered to the polarizer 112, i.e., the polarizer 112 is disposed between the backlight module 111 and a portion of the first adhesive layer 120. In one embodiment, the first adhesive layer 120 is an Optical Clear Adhesive (OCA) having a transmittance of greater than 60%, or even greater than 80%.
The touch sensing film 130 is disposed on the first adhesive layer 120, and the first adhesive layer 120 is adhered to one end of the upper surface 1101, the side surface 1102 and the lower surface 1103 of the display module 110 adjacent to the side surface 1102. Specifically, the touch sensing film 130 and the first adhesive layer 120 are disposed on the upper surface 1101 of the display module 110, and extend to the side surface 1102 and the lower surface 1103 partially adjacent to the side surface 1102, so that the touch sensing film 130 and the first adhesive layer 120 bend at the side surface 1102 and extend to the lower surface 1103 a little.
The passivation layer 140 is disposed on one of the side surfaces 1102 and the lower surface 1103 of the touch sensing film 130 opposite to the display module 110, for example, the passivation layer 141 is disposed on the inner side of the touch sensing film 130. In one embodiment, the passivation layer 140 may be two layers (as shown in fig. 2), which are respectively disposed on two sides of the touch sensing film 130 opposite to the side surface 1102 and the lower surface 1103 of the display module 110, that is, the passivation layer 141 disposed on the inner side of the touch sensing film 130, and the passivation layer 142 disposed on the outer side of the touch sensing film 130. In one embodiment, the protection layer 140 further extends to an end of the upper surface 1101 of the display module 110 and is adjacent to the side surface 1102 of the display module 110. In one embodiment, the impedance of the passivation layer 140 is between 109Ohm to 1012Ohm. In one embodiment, the impedance of the passivation layer 140 is 1010Ohm or 1011Ohm. In one embodiment, the thickness of the passivation layer 140 is between 5 microns and 18 microns. In one embodiment, the thickness of the protective layer 140 is 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, or 17 microns. In another embodiment, the thickness of the first adhesive layer 120 is greater than or equal to 50 micrometers, and the thickness of the protective layer 140 is in a range from 5 micrometers to 12 micrometers, so that no bubbles are generated when the first adhesive layer 120, the touch sensing film 130, the protective layer 140 and the second adhesive layer 150 are attached. In one embodiment, the material of the protection layer 140 is black high-impedance ink, which is obtained by adding dye or pigment to protection ink (protection ink) to make the ink black, and the ink generally comprises color body (such as pigment, dye, etc.), binder, filler (filler) and additive. The protective ink includes, but is not limited to, epoxy-containing resin (epoxy), acrylic acid copolymer (also known as acrylic acid, polymethyl methacrylate (PMMA)), Ethyl diethylene glycol acetate (Ethyl diethylene glycol acetate), or combinations thereof.
It should be noted that the protection layer 141 between the first adhesive layer 120 and the touch sensing film 130 is made of opaque material. The opaque material is black high-impedance ink, which is described as the material of the upper protection layer 140, and is not described again. In one embodiment, the opaque material has an optical density greater than or equal to 4.5. The protective layer 141 is made of opaque material to replace a light-shielding tape (cell tape) on a conventional liquid crystal module, so as to simplify the manufacturing process and make more space, and thus the touch display device is thinner.
The second adhesive layer 150 is adhered to the outer side of the touch sensing film 130 opposite to the upper surface 1101 of the display module 110. In one embodiment, a portion of the second adhesive layer 150 is adhered to the top of the protection layer 142 opposite to the top surface 1101 of the display module 110. In one embodiment, the second adhesive layer 150 is an Optical Clear Adhesive (OCA) having a transmittance of greater than 60%, or even greater than 80%.
The cover plate 160 is disposed above the touch sensing film 130 relative to the upper surface 1101 of the display module 110, and specifically, the cover plate 160 is disposed on the second adhesive layer 150. In one embodiment, the cover plate 160 may be a transparent inorganic substrate, such as a glass substrate; or a transparent organic substrate, such as a plastic substrate, made of polyethylene terephthalate (PET), Polycarbonate (PC), Polyethylene (PE), polymethyl methacrylate (PE), or the like. In one embodiment, the light shielding layer 161 is disposed under the cover plate 160 opposite to the side surface 1102 of the display module 110. The light-shielding layer 161 may be formed of opaque ink, such as black ink, white ink, etc. For example, the transmittance of the light-shielding layer 161 is less than 20%.
Example 2
Fig. 2 is a cross-sectional view of a touch display device for preventing light leakage according to another embodiment of the present disclosure. The light leakage prevention touch display device 100' includes a display module 110, a first adhesive layer 120, a touch sensing film 130, two protective layers 140, a second adhesive layer 150, and a cover plate 160. The difference between the embodiment 2 and the embodiment 1 is that the protection layer 141 is made of a light-transmitting material, and the protection layer 142 is made of a light-opaque material. The opaque material is black high-impedance ink, which is the same as the material of the passivation layer 140 in embodiment 1 and is not described again. In one embodiment, the opaque material has an optical density greater than or equal to 4.5.
Example 3
Fig. 3 is a cross-sectional view of a touch display device for preventing light leakage according to still another embodiment of the present disclosure. The light leakage prevention touch display device 100 ″ includes a display module 110, a first adhesive layer 120, a touch sensing film 130, two protective layers 140, a second adhesive layer 150, and a cover plate 160. The difference between the embodiment 3 and the embodiment 2 is that the protection layers 141 and 142 are made of a transparent material, and the first adhesive layer 120 disposed on the side surface 1102 of the display module 110 is made of an opaque material. In one embodiment, the first adhesive layer 120 is disposed on one end of the upper surface 1101 and one end of the lower surface 1103 of the display module 110, and the side surface 1102 adjacent to the display module 110 is made of opaque material; that is, most of the upper surface 1101 of the display module 110 on which the first adhesive layer 120 is disposed is made of a transparent material, and only a portion of the first adhesive layer adjacent to the side surface 1102 is made of an opaque material. The opaque material is black high-impedance ink, which is the same as the material of the passivation layer 140 in embodiment 1 and is not described again. In one embodiment, the opaque material has an optical density greater than or equal to 4.5.
In various embodiments of the present disclosure, the light-tight material selected from the protection layers 141 and 142, the first adhesive layer 120, or a combination thereof (any one, any two, or all) is used to replace a light-tight tape (cell tape) on a conventional liquid crystal module. The technical characteristics are favorable for reducing the whole thickness of the machine body, and the thickness of the narrow-frame and frameless touch screen is less than 2 mm. In addition, the technical characteristics replace a shading tape, so that the manufacturing procedure and the production cost are reduced. Moreover, when the conventional light-shielding tape is attached, the height is easily uneven to generate local wrinkles, and if the optical colloid is attached to the wrinkles, air bubbles are easily generated. The technical characteristics also solve the problem that air bubbles are easy to generate when the optical colloid is adhered by the shading adhesive tape in the manufacturing process.
Although the present disclosure has been described with reference to particular embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure, and therefore the scope of the present disclosure should be limited only by the terms of the appended claims.
Claims (11)
1. A touch display device for preventing light leakage, comprising:
a display module including an upper surface, a side surface and a lower surface;
the first adhesive layer is arranged on the upper surface of the display module, extends and bends to the lower surface through the side surface;
a touch sensing film disposed on the first adhesive layer; and
at least one protective layer arranged on one surface of the touch sensing film corresponding to the side surface and the lower surface of the display module,
the first adhesive layer arranged on the side surface of the display module is an opaque adhesive layer and/or the protective layer is an opaque protective layer.
2. The touch display device of claim 1, wherein the display module further comprises a backlight module and a polarizer disposed on the backlight module, wherein the first adhesive layer disposed on the top surface of the display module is attached to the polarizer.
3. The touch display device of claim 1, wherein the first adhesive layer is disposed at one end of the lower surface of the display module and adjacent to the side surface of the display module.
4. The touch display device of claim 1, further comprising two passivation layers respectively disposed on two sides of the touch sensing film opposite to the side surface and the bottom surface of the display module,
at least one of the two protective layers is an opaque protective layer.
5. The touch display device of claim 1, wherein the passivation layer further extends to an end of the top surface of the display module and is adjacent to the side surface of the display module.
6. The touch display device of claim 1, wherein the protective layer has a thickness of 5 to 18 microns.
7. The touch display device of claim 1, wherein the protective layer has an impedance of between 109Ohm to 1012Ohm.
8. The touch display device of claim 1, wherein the opaque adhesive layer and/or the opaque protective layer has an optical density greater than or equal to 4.5.
9. Touch display device according to claim 1, wherein the opaque adhesive layer is a black high-impedance ink adhesive layer and/or the opaque protective layer is a black high-impedance ink protective layer.
10. The touch display device of claim 1, further comprising a cover plate disposed over the top surface of the touch sensing film opposite the display module.
11. The touch display device of claim 10, further comprising a second adhesive layer disposed between the cover plate and the touch sensing film disposed on the top surface of the display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021140280.3U CN212433740U (en) | 2020-06-18 | 2020-06-18 | Touch display device of leak protection light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021140280.3U CN212433740U (en) | 2020-06-18 | 2020-06-18 | Touch display device of leak protection light |
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| Publication Number | Publication Date |
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| CN212433740U true CN212433740U (en) | 2021-01-29 |
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| CN202021140280.3U Active CN212433740U (en) | 2020-06-18 | 2020-06-18 | Touch display device of leak protection light |
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| CN (1) | CN212433740U (en) |
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- 2020-06-18 CN CN202021140280.3U patent/CN212433740U/en active Active
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