CN112987955A - Flexible touch display panel - Google Patents
Flexible touch display panel Download PDFInfo
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- CN112987955A CN112987955A CN201911298612.2A CN201911298612A CN112987955A CN 112987955 A CN112987955 A CN 112987955A CN 201911298612 A CN201911298612 A CN 201911298612A CN 112987955 A CN112987955 A CN 112987955A
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Images
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
Abstract
A flexible touch display panel includes a touch module. The touch module comprises a flexible substrate, a touch element layer, a polarizer and a shielding layer. The touch element layer is adjacent to the flexible substrate. The polarizer is arranged on the flexible substrate. The shielding layer is adjacent to the polarizer. The polarizer and the shielding layer are provided with a hard coating.
Description
Technical Field
The present invention relates to a touch display panel, and more particularly, to a flexible touch display panel capable of reducing the overall thickness.
Background
The demand of modern people for touch display panels is increasing, and the research on the application mode of the touch display panels is also progressing. The flexible touch display panel can have radian or curl, can bring different experiences to people, is more convenient to carry, and becomes a focus of attention in the market nowadays. However, the current flexible display panel is still mainly constructed by laminating a plurality of units (for example, a unit construction including a touch element layer, a polarizer, an optical adhesive layer, a protective cover plate, and the like), and thus has no advantage in thickness. Therefore, there is still a need to develop a flexible touch display panel that can improve the above disadvantages.
Disclosure of Invention
The invention provides a flexible touch display panel beneficial to thickness reduction. Because the hard coating layer is arranged on the polarizer and the shielding layer of the flexible touch display panel, an optical adhesive layer and a protective cover plate do not need to be additionally arranged on the outer side of the flexible touch display panel, and the overall thickness of the flexible touch display panel can be greatly reduced.
According to an aspect of the present invention, a flexible touch display panel is provided. The flexible touch display panel comprises a touch module. The touch module comprises a flexible substrate, a touch element layer, a polarizer and a shielding layer. The touch element layer is adjacent to the flexible substrate. The polarizer is arranged on the flexible substrate. The shielding layer is adjacent to the polarizer. The polarizer and the shielding layer are provided with a hard coating.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
Fig. 1A is a cross-sectional view of a touch module according to an embodiment of the invention.
Fig. 1B is a cross-sectional view of a touch module according to another embodiment of the invention.
Fig. 1C is a cross-sectional view of a touch module according to another embodiment of the invention.
Fig. 1D is a cross-sectional view of a touch module according to another embodiment of the invention.
Fig. 1E is a cross-sectional view of a touch module according to another embodiment of the invention.
Fig. 1F is a cross-sectional view of a touch module according to another embodiment of the invention.
Fig. 2A is a top view of a positional relationship between a polarizer and a shielding layer of a touch module according to an embodiment of the invention.
Fig. 2B is a top view of a positional relationship between a polarizer and a shielding layer of a touch module according to another embodiment of the invention.
Fig. 2C is a top view of a positional relationship between a polarizer and a shielding layer of a touch module according to another embodiment of the invention.
Fig. 3A is a cross-sectional view of a flexible touch display panel according to an embodiment of the invention.
Fig. 3B is a cross-sectional view of a flexible touch display panel according to another embodiment of the invention.
Fig. 4A is a cross-sectional view of a flexible touch display panel according to another embodiment of the invention.
Fig. 4B is a cross-sectional view of a flexible touch display panel according to another embodiment of the invention.
Fig. 5A is a cross-sectional view of a flexible touch display panel according to another embodiment of the invention.
Fig. 5B is a cross-sectional view of a flexible touch display panel according to another embodiment of the invention.
Fig. 6A is a cross-sectional view of a flexible touch display panel according to another embodiment of the invention.
Fig. 6B is a cross-sectional view of a flexible touch display panel according to another embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the drawings are simplified to illustrate only some embodiments, but not all embodiments, of the invention, and that elements and combinations relating to the invention are shown only to provide a clear description of the basic structure or method of operation of the invention, which may be more complex in actual implementation and arrangement. In addition, for convenience of explanation, the detailed proportions of the elements shown in the various drawings of the present invention can be adjusted according to design requirements.
Referring to fig. 1A, fig. 1A is a cross-sectional view of a touch module according to an embodiment of the invention. The flexible touch display panels 10, 30, 50, and 70 (shown in fig. 3A, 4A, 5A, and 6A, respectively) include a touch module 100. The touch module 100 includes a flexible substrate 110, a touch device layer 112, an optical retarder 114, a polarizer 116, a shielding layer 118, and a hard coating layer 120. The touch device layer 112 is disposed adjacent to the flexible substrate 110. The polarizer 116 is disposed on the flexible substrate 110. The shielding layer 118 is disposed adjacent to the polarizer 116. The polarizer 116 and the shielding layer 118 have a hard coating 120 thereon. The flexible substrate 110 includes an upper surface 110a and a lower surface 110b opposite to the upper surface 110 a. In the present embodiment, the touch device layer 112, the optical retardation plate 114, the polarizer 116 and the hard coating layer 120 are sequentially stacked on the upper surface 110a of the flexible substrate 110. In other words, the touch device layer 112 and the polarizer 116 are disposed on the upper surface 110 a. The shielding layer 118 and the hard coating layer 120 are disposed on the polarizer 116, and the shielding layer 118 and the hard coating layer 120 may directly contact the polarizer 116. The distance D1 between the shielding layer 118 and the upper surface 110a may be greater than the distance D2 between the polarizer 116 and the upper surface 110 a. In some embodiments, the hard coating 120 may cover the masking layer 118 and the polarizer 116. However, the invention is not limited thereto.
In some embodiments, the flexible substrate 110 may be formed of Polyimide (PI), polyethylene terephthalate (PET), or other suitable material. Also, the flexible substrate 110 may be a light-permeable substrate.
In some embodiments, the touch sensing layer 112 may include touch sensing electrodes formed of a light transmissive conductive material, for example.
In some embodiments, the optical retarder 114 may be formed of polycarbonate (polycarbonate), polyvinyl alcohol (PVA), or other suitable materials. The optical retarder 114 may convert any given polarization phase and produce circular or elliptical polarization, although the invention is not limited in this respect.
In some embodiments, the polarizer 116 may be polyvinyl alcohol (PVA) or other suitable material that can adjust the polarization of light.
In some embodiments, the masking layer 118 may be a black matrix, opaque tape, color resists, inks, or other suitable materials that may be used to mask light. The shielding layer 118 can be used to block the light reflection of the metal traces. For example, the shielding layer 118 may be formed on the polarizer 116 by spraying, evaporation or other processes, but the invention is not limited thereto.
In some embodiments, the hard coating 120 covering the polarizer 116 may be formed by directly performing a hardening process on the upper surface of the polarizer 116, or the hard coating 120 may be attached to the polarizer 116 to form the hard coating 120 covering the polarizer 116. For example, the hard coat layer 120 may contain an active energy ray-curable resin such as ultraviolet rays or electron beams. The hard coating layer 120 may have a hardness equal to or greater than 2H and a thickness T1 of 3 μm to 60 μm. The hard coating layer 120 is disposed on an outermost layer of the touch module 100 (or an outermost layer of the flexible touch display panel), and has sufficient hardness to prevent an external force or other interference factors from damaging components inside the touch module 100 (or the flexible touch display panel).
In some embodiments, the polarizer 116 and the hard coat layer 120 may be fixed to each other by electrostatic attraction without the need for additional adhesive materials. In some embodiments, a back adhesive layer may be disposed between the polarizer 116 and the hard coat layer 120, and the thickness of the back adhesive layer may be less than 30 μm.
Since the touch module 100 of the present invention includes the hard coating layer 120 disposed on the polarizer 116 and the shielding layer 118, compared to the polarizer that needs to additionally dispose an optical adhesive layer (OCA, the thickness of which is, for example, equal to or greater than 30 μm) and a protective cover plate (such as a glass cover plate or a plastic cover plate, the thickness of which is, for example, equal to or greater than 50 μm), the overall thickness of the touch module 100 (even a flexible touch display panel) can be reduced, which brings convenience in use. In addition, the process of the hard coating layer 120 of the present invention is simpler and more convenient than the process steps of the optical adhesive layer and the protective cover plate, and the material consumption is reduced, so the manufacturing cost can be reduced.
Referring to fig. 1B, the flexible touch display panels 20, 40, 60, and 80 (shown in fig. 3B, 4B, 5B, and 6B, respectively) include a touch module 200. The touch module 200 includes a flexible substrate 210, a touch device layer 212, an optical retardation plate 214, a polarizer 216, a shielding layer 218, and a hard coating layer 220. The touch device layer 212 is disposed adjacent to the flexible substrate 210. The polarizer 216 is disposed on the flexible substrate 110. The shielding layer 218 is disposed adjacent to the polarizer 216. The polarizer 216 and the shielding layer 218 have a hard coating 220 thereon. The flexible substrate 210 includes an upper surface 210a and a lower surface 210b opposite to the upper surface 210 a. In the present embodiment, the optical retardation plate 214, the polarizer 216 and the hard coating layer 220 are sequentially stacked on the upper surface 210a of the flexible substrate 210. The touch device layer 212 is disposed on the lower surface 210b of the flexible substrate 210. In other words, the touch device layer 212 and the polarizer 216 are disposed on two opposite sides of the flexible substrate 210. The shielding layer 218 and the hard coating layer 220 are disposed on the polarizer 216, and the shielding layer 218 and the hard coating layer 220 may directly contact the polarizer 216. The distance D3 between the shielding layer 218 and the top surface 210a may be greater than the distance D4 between the polarizer 216 and the top surface 210 a. In some embodiments, the hard coating 220 may cover the masking layer 218 and the polarizer 216. However, the invention is not limited thereto.
In some embodiments, the hard coating layer 220 may have a hardness equal to or greater than 2H and a thickness T2 of 3 μm to 60 μm. The hard coating layer 220 is disposed on an outermost layer of the touch module 200 (or an outermost layer of the flexible touch display panel), and has sufficient hardness to prevent an external force or other interference factors from damaging components inside the touch module 200 (or the flexible touch display panel).
In some embodiments, the polarizer 216 and the hard coat layer 220 may be fixed to each other by electrostatic attraction without the need for additional adhesive materials. In some embodiments, a back adhesive layer may be disposed between the polarizer 216 and the hard coat layer 220, and the thickness of the back adhesive layer may be less than 30 μm.
Since the touch module 200 of the present invention includes the hard coating layer 220 disposed on the polarizer 216 and the shielding layer 218, the overall thickness of the touch module 200 (even a flexible touch display panel) can be reduced compared to a comparative example in which an optical adhesive layer (OCA, for example, having a thickness equal to or greater than 30 μm) and a protective cover (for example, a glass cover or a plastic cover, having a thickness equal to or greater than 50 μm) are additionally disposed on the polarizer, which brings convenience in use. In addition, the process of the hard coating 220 of the present invention is simpler and more convenient than the process steps of the optical adhesive layer and the protective cover plate, and the material consumption is reduced, so the manufacturing cost can be reduced.
Referring to fig. 1C, the flexible touch display panel (not shown) includes a touch module 300. The touch module 300 includes a flexible substrate 310, a touch device layer 312, an optical retarder 314, a polarizer 316, a shielding layer 318, and a hard coating 320. The touch device layer 312 is disposed adjacent to the flexible substrate 310. The polarizer 316 is disposed on the flexible substrate 310. The shielding layer 318 is disposed adjacent to the polarizer 116. The polarizer 316 and the shielding layer 318 have a hard coating 320 thereon. The flexible substrate 110 includes an upper surface 310a and a lower surface 310b opposite to the upper surface 310 a. In the present embodiment, the touch device layer 312, the optical retardation plate 314, the polarizer 316 and the hard coating layer 320 are sequentially stacked on the upper surface 310a of the flexible substrate 310. In other words, the touch device layer 312 and the polarizer 316 are disposed on the upper surface 310 a. The hard coating 320 may directly contact the polarizer 316. The shielding layer 318 is disposed on the optical retardation plate 314 and the polarizer 316, and is located on the touch device layer 312 (e.g., directly contacting the touch device layer 312). That is, the distance D5 between the shielding layer 318 and the top surface 310a may be smaller than the distance D6 between the polarizer 316 and the top surface 310 a. In some embodiments, the hard coating 320 may cover the shielding layer 318 and the polarizer 316. However, the invention is not limited thereto. It should be noted that, the upper edge of the shielding layer 318 in FIG. 1C is lower than the upper edge of the polarizer 316, which is only an illustrative example, the upper edge of the shielding layer 318 may also be aligned with or higher than the upper edge of the polarizer 316.
In some embodiments, the hard coating 320 may have a hardness equal to or greater than 2H and a thickness T3 of 3 μm to 60 μm. The hard coating 320 is disposed on an outermost layer of the touch module 300 (or an outermost layer of the flexible touch display panel), and has sufficient hardness to prevent external force or other interference factors from damaging components inside the touch module 300 (or the flexible touch display panel).
In some embodiments, the polarizer 316 and the hard coating 320 may be fixed to each other by electrostatic attraction without the need for additional adhesive materials. In some embodiments, a backside adhesive layer may be disposed between the polarizer 316 and the hard coat layer 320, and the thickness of the backside adhesive layer may be less than 30 μm.
Since the touch module 300 of the present invention includes the hard coating layer 320 disposed on the polarizer 316 and the shielding layer 318, compared to a comparative example in which an optical adhesive layer (OCA, for example, having a thickness equal to or greater than 30 μm) and a protective cover (for example, a glass cover or a plastic cover, having a thickness equal to or greater than 50 μm) are additionally disposed on the polarizer, the overall thickness of the touch module 300 (even a flexible touch display panel) can be reduced, which brings convenience in use. In addition, the process of the hard coating 320 of the present invention is simpler and more convenient than the process steps of the optical adhesive layer and the protective cover plate, and the material consumption is reduced, so the manufacturing cost can be reduced.
Referring to fig. 1D, the flexible touch display panel (not shown) includes a touch module 400. The touch module 400 includes a flexible substrate 410, a touch device layer 412, an optical retarder 414, a polarizer 416, a shielding layer 418, and a hard coat layer 420. The touch device layer 412 is disposed adjacent to the flexible substrate 410. The polarizer 416 is disposed on the flexible substrate 410. The shielding layer 418 is disposed adjacent to the polarizer 416. The polarizer 416 and the shielding layer 418 have a hard coating 420 thereon. The flexible substrate 410 includes an upper surface 410a and a lower surface 410b opposite to the upper surface 410 a. In the present embodiment, the optical retardation plate 414, the polarizer 416 and the hard coating 420 are sequentially stacked on the upper surface 410a of the flexible substrate 410. The touch device layer 412 is disposed on the lower surface 410b of the flexible substrate 410. In other words, the touch device layer 412 and the polarizer 416 are disposed on two opposite sides of the flexible substrate 410, respectively. The hard coat layer 420 may be in direct contact with the polarizer 416. The shielding layer 418 is disposed on the optical retardation film 414 and the polarizer 416 at the side of the flexible substrate 410 (e.g., directly contacting the flexible substrate 410). That is, the distance between the shielding layer 418 and the upper surface 410a (e.g., equal to 0) may be less than the distance D8 between the polarizer 416 and the upper surface 410 a. In some embodiments, the hard coating 420 may cover the masking layer 418 and the polarizer 416. However, the invention is not limited thereto. It should be noted that the upper edge of the shielding layer 418 in FIG. 1D is lower than the upper edge of the polarizer 416, which is only an illustrative example, the upper edge of the shielding layer 418 may be aligned with or higher than the upper edge of the polarizer 416.
In some embodiments, the hard coating 420 may have a hardness equal to or greater than 2H and a thickness T4 of 3 μm to 60 μm. The hard coating 420 is disposed on an outermost layer of the touch module 400 (or an outermost layer of the flexible touch display panel), and has sufficient hardness to prevent an external force or other interference factors from damaging components inside the touch module 400 (or the flexible touch display panel).
In some embodiments, the polarizer 416 and the hard coat layer 420 may be fixed to each other by electrostatic attraction without the need for additional adhesive materials. In some embodiments, a back adhesive layer may be disposed between the polarizer 416 and the hard coating 420, and the thickness of the back adhesive layer may be less than 30 μm.
Since the touch module 400 of the present invention includes the hard coating layer 420 disposed on the polarizer 416 and the shielding layer 418, the overall thickness of the touch module 400 (even a flexible touch display panel) can be reduced, which brings convenience in use, compared to a comparative example in which an optical adhesive layer (OCA, for example, having a thickness equal to or greater than 30 μm) and a protective cover (for example, a glass cover or a plastic cover, having a thickness equal to or greater than 50 μm) are additionally disposed on the polarizer. In addition, the process of the hard coating 420 of the present invention is simpler and more convenient than the process steps of the optical adhesive layer and the protective cover plate, and the material consumption is reduced, so the manufacturing cost can be reduced.
Fig. 1E is a cross-sectional view of a touch module 100' according to another embodiment of the invention. The touch module 100 'is similar to the touch module 100, and is different in the arrangement range of the polarizer 116'; the shielding layer 118 in this embodiment partially overlaps the polarizer 116' in the perpendicular projection direction. The same elements of the touch module 100' as those of the touch module 100 are denoted by the same reference numerals, and have the same materials and manufacturing methods, and detailed descriptions thereof will not be repeated.
Referring to FIG. 1E, the polarizer 116' is surrounded by the insulating material 115. The insulating material 115 is filled between the polarizer 116', the shielding layer 118 and the optical retarder 114. In some embodiments, the insulating material 115 is, for example, an oxide, a resin, or other suitable insulating material, and the insulating material 115 may be formed of the same material as or simultaneously with the shielding layer 118, which may reduce material costs and time for the conversion process.
Fig. 1F is a cross-sectional view of a touch module 200' according to another embodiment of the invention. The touch module 200 'is similar to the touch module 200, except for the arrangement range of the polarizer 216'; the shielding layer 218 in this embodiment partially overlaps the polarizer 216' in the perpendicular projection direction. The same components of the touch module 200' as those of the touch module 200 are denoted by the same reference numerals, and have the same materials and manufacturing methods, and detailed descriptions thereof will not be repeated.
Referring to FIG. 1F, the polarizer 216' is surrounded by an insulating material 215. An insulating material 215 is filled between the polarizer 216', the shielding layer 218, and the optical retarder 214. In some embodiments, the insulating material 215 is, for example, an oxide, a resin, or other suitable insulating material, and the insulating material 215 may be formed of the same material as or simultaneously with the shielding layer 218, thereby reducing material costs and time for the conversion process.
Fig. 2A is a top view of a positional relationship between a polarizer 516 and a shielding layer 518 of a touch module 100A according to an embodiment of the invention. The polarizers 316 and 416 may be applied to the polarizer 516 of the touch module 100A, and the shielding layers 318 and 418 may be applied to the shielding layer 518 of the touch module 100A.
Referring to fig. 2A, the shielding layer 518 surrounds and forms a closed region, which is referred to as a pixel region AA. The shielding layer 518 may be disposed on the polarizer 516 or disposed at a side of the polarizer 516. The polarizer 516 is vertically projected on the flexible substrate (not shown) and has a first outer edge 516a, the shielding layer 518 is vertically projected on the flexible substrate (not shown), and has a light-shielding outer boundary 518a on a side away from the pixel area AA and a light-shielding inner boundary 518b on a side adjacent to the pixel area AA, wherein the light-shielding inner boundary 518b is aligned with the first outer edge 516 a. In other words, the area of the shielding layer 518 perpendicularly projected on the flexible substrate (not shown) and the area of the polarizer 516 perpendicularly projected on the flexible substrate (not shown) may not overlap each other.
Fig. 2B is a top view of a positional relationship between a polarizer 616 and a shielding layer 618 of a touch module 100B according to another embodiment of the invention. The polarizers 116 ', 216' may be applied to the polarizer 616 of the touch module 100B, and the shielding layers 118, 218 may be applied to the shielding layer 618 of the touch module 100B.
Referring to fig. 2B, the shielding layer 618 surrounds and forms an enclosed area, which is referred to as a pixel area AA. The shielding layer 618 may be disposed on the polarizer 616. The polarizer 616 is vertically projected on the flexible substrate (not shown) and has a first outer edge 616a, the shielding layer 618 is vertically projected on the flexible substrate (not shown), and has a light-shielding outer boundary 618a on a side away from the pixel area AA, a light-shielding inner boundary 618b on a side adjacent to the pixel area AA, and the first outer edge 616a is located between the light-shielding inner boundary 618b and the light-shielding outer boundary 618 a. In other words, the area of the shielding layer 618 perpendicularly projected onto the flexible substrate (not shown) and the area of the polarizer 616 perpendicularly projected onto the flexible substrate (not shown) may at least partially overlap.
FIG. 2C is a top view of a positional relationship between a polarizer 716 and a shielding layer 718 of a touch module 100C according to another embodiment of the invention. The polarizers 116, 216 may be applied to a polarizer 716 of the touch module 100C, and the shielding layers 118, 218 may be applied to a shielding layer 718 of the touch module 100C.
Referring to fig. 2C, the shielding layer 718 surrounds and forms an enclosed area, which is referred to as a pixel area AA. An obscuring layer 718 may be disposed over polarizer 716. The polarizer 716 is vertically projected on the flexible substrate (not shown) and has a first outer edge 716a, the shielding layer 718 is vertically projected on the flexible substrate (not shown), and has a light-shielding outer boundary 718a on a side away from the pixel area AA, a light-shielding inner boundary 718b on a side adjacent to the pixel area AA, and the first outer edge 716a is aligned with the light-shielding outer boundary 718 b. In other words, the area of the polarizer 716 perpendicularly projected onto the flexible substrate (not shown) may be equal to (or completely overlap with) the sum of the area of the shielding layer 718 perpendicularly projected onto the flexible substrate (not shown) and the area of the pixel area AA perpendicularly projected onto the flexible substrate (not shown).
Referring to fig. 3A, the flexible touch display panel 10 may include a touch module 100 (shown in fig. 1A) and a display module 500. The touch module 100 is disposed on one side (for example, the upper side) of the display module 500, and the touch module 100 and the display module 500 are bonded by an optical adhesive layer 102. The thickness of the optical glue layer 102 is for example equal to or greater than 30 μm, for example 50 μm. The touch module 100 may be located above the display module 500, and the touch module 100 uses the same or similar reference numerals to denote the same or similar components along with the reference numerals and related contents of the embodiment in fig. 1A, and the materials and functions thereof may refer to the foregoing embodiments, which are not described herein again.
In some embodiments, the display module 500 may include a flexible Organic Light Emitting Diode (OLED) unit 512 and a thin film encapsulation layer 514. The thin film encapsulation layer 514 is disposed on the organic light emitting diode unit 512 for protecting the organic light emitting diode unit 512.
Referring to fig. 3B, the flexible touch display panel 20 may include a touch module 200 (shown in fig. 1B) and a display module 500. The touch module 200 is disposed on one side (e.g., the upper side) of the display module 500, and the touch module 200 and the display module 500 are bonded by an optical adhesive layer 202. The thickness of the optical glue layer 202 is for example equal to or greater than 30 μm, for example 50 μm. The touch module 200 can be located above the display module 500, and the touch module 200 follows the element numbers and related contents of the embodiment of fig. 1B, wherein the same or similar numbers are used to represent the same or similar elements, and the materials and functions thereof can refer to the foregoing embodiments, which are not described herein again.
In some embodiments, the display module 500 may include a flexible Organic Light Emitting Diode (OLED) unit 512 and a thin film encapsulation layer 514. The thin film encapsulation layer 514 is disposed on the organic light emitting diode unit 512 for protecting the organic light emitting diode unit 512.
Referring to fig. 4A, the flexible touch display panel 30 may include a touch module 100 (shown in fig. 1A) and a display module 600. The touch module 100 is disposed on one side (for example, the upper side) of the display module 600, and the touch module 100 and the display module 600 are bonded by an optical adhesive layer 302. The thickness of the optical glue layer 302 is, for example, equal to or greater than 30 μm, for example 50 μm. The touch module 100 may be located above the display module 600, and the touch module 100 uses the same or similar reference numerals to denote the same or similar components along with the reference numerals and related contents of the embodiment in fig. 1A, and the materials and functions thereof may refer to the foregoing embodiments, which are not described herein again.
In some embodiments, the display module 600 may comprise a flexible Liquid Crystal Display (LCD) unit, a MicroLED display module, or a display module applied to a total reflection type.
Referring to fig. 4B, the flexible touch display panel 30 may include a touch module 200 (shown in fig. 1B) and a display module 600. The touch module 200 is disposed on one side (for example, the upper side) of the display module 600, and the touch module 200 and the display module 600 are bonded by an optical adhesive layer 402. The thickness of the optical glue layer 402 is for example equal to or greater than 30 μm, for example 50 μm. The touch module 200 may be located above the display module 600, and the touch module 200 follows the element labels and related contents of the embodiment of fig. 1B, wherein the same or similar labels are used to represent the same or similar elements, and the materials and functions thereof may refer to the foregoing embodiments, which are not described herein again.
In some embodiments, the display module 600 may comprise a flexible Liquid Crystal Display (LCD) unit, a MicroLED display module, or a display module applied to a total reflection type.
Referring to fig. 5A, the flexible touch display panel 50 may include a touch module 100 (shown in fig. 1A) and a display module 700. The touch module 100 is disposed on one side (for example, the upper side) of the display module 700, and the touch module 100 and the display module 700 are bonded by an optical adhesive layer 502. The thickness of the optical glue layer 502 is for example equal to or greater than 30 μm, for example 50 μm. The touch module 100 may be located above the display module 700, and the touch module 100 follows the element labels and related contents of the embodiment in fig. 1A, wherein the same or similar labels are used to represent the same or similar elements, and the materials and functions thereof may refer to the foregoing embodiments, which are not described herein again.
In some embodiments, the display module 700 may include a flexible backlight unit 712 and a flexible Liquid Crystal Display (LCD) unit 714 disposed thereon, which may be applied to a transflective LCD module.
Referring to fig. 5B, the flexible touch display panel 60 may include a touch module 200 (shown in fig. 1B) and a display module 700. The touch module 200 is disposed on one side (e.g., the upper side) of the display module 700, and the touch module 200 and the display module 700 are bonded by an optical adhesive layer 602. The thickness of the optical glue layer 602 is, for example, equal to or greater than 30 μm, for example 50 μm. The touch module 200 may be located above the display module 700, and the touch module 200 follows the element labels and related contents of the embodiment of fig. 1B, wherein the same or similar labels are used to represent the same or similar elements, and the materials and functions thereof may refer to the foregoing embodiments, which are not described herein again.
In some embodiments, the display module 700 may include a flexible backlight unit 712 and a flexible Liquid Crystal Display (LCD) unit 714 disposed thereon, which may be applied to a transflective LCD module.
Referring to fig. 6A, the flexible touch display panel 70 may include a touch module 100 (shown in fig. 1A) and a display module 800. The touch module 100 is disposed on one side (for example, the upper side) of the display module 800, and the touch module 100 and the display module 800 are bonded by an optical adhesive layer 702. The thickness of the optical glue layer 702 is for example equal to or greater than 30 μm, for example 50 μm. The touch module 100 may be located above the display module 800, and the touch module 100 follows the element labels and related contents of the embodiment in fig. 1A, wherein the same or similar labels are used to represent the same or similar elements, and the materials and functions thereof may refer to the foregoing embodiments, which are not described herein again.
In some embodiments, the display module 800 may include a flexible backlight unit 812, a flexible Liquid Crystal Display (LCD) unit 814, and a polarizer 816 disposed between the flexible backlight unit 812 and the flexible liquid crystal display unit 814, and is applied to the transmissive liquid crystal display module.
Referring to fig. 6B, the flexible touch display panel 80 may include a touch module 200 (shown in fig. 1B) and a display module 800. The touch module 200 is disposed on one side (e.g., the upper side) of the display module 800, and the touch module 200 and the display module 800 are bonded by an optical adhesive layer 802. The thickness of the optical glue layer 802 is for example equal to or greater than 30 μm, for example 50 μm. The touch module 200 may be located above the display module 800, and the touch module 200 follows the element labels and related contents of the embodiment of fig. 1B, wherein the same or similar labels are used to represent the same or similar elements, and the materials and functions thereof may refer to the foregoing embodiments, which are not described herein again.
In some embodiments, the display module 800 may include a flexible backlight unit 812, a flexible Liquid Crystal Display (LCD) unit 814, and a polarizer 816 disposed between the flexible backlight unit 812 and the flexible liquid crystal display unit 814, and is applied to the transmissive liquid crystal display module.
The flexible touch display panel of the invention is not limited thereto, and the touch modules 100 ', 200', 300, 400 and other touch modules can be combined with the display modules 500-800 or other types of display modules at will.
According to an embodiment of the present invention, a flexible touch display panel is provided. The flexible touch display panel comprises a touch module. The touch module comprises a flexible substrate, a touch element layer, a polarizer and a shielding layer. The touch element layer is adjacent to the flexible substrate. The polarizer is arranged on the flexible substrate. The shielding layer is adjacent to the polarizer. The polarizer and the shielding layer are provided with a hard coating.
In some embodiments, the hard coating of the present invention can be formed in the above manner, and a transparent strengthening film having a hardness of not less than 2H and a thickness of 20 μm to 50 μm can be attached to the polarizer. Except replacing the traditional protective cover plate with larger thickness, the device can be prevented from being scratched and the efficiency of resisting abrasion is improved.
Since the touch module of the invention includes the hard coating layer disposed on the polarizer and the shielding layer, compared to a comparative example in which an optical adhesive layer (OCA, for example, having a thickness equal to or greater than 30 μm) and a protective cover plate (for example, a glass cover plate or a plastic cover plate, having a thickness equal to or greater than 50 μm) are additionally disposed on the polarizer, the overall thickness of the touch module (even a flexible touch display panel) can be reduced, thereby facilitating the use. In addition, compared with the manufacturing process of the optical adhesive layer and the protective cover plate, the manufacturing process of the hard coating is simpler and more convenient, and materials are saved, so that the manufacturing cost can be reduced.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A flexible touch display panel, comprising a touch module, wherein the touch module comprises:
a flexible substrate;
the touch control element layer is arranged adjacent to the flexible substrate;
the polaroid is arranged on the flexible substrate;
a shielding layer adjacent to the polarizer, wherein
The polarizer and the shielding layer are provided with a hard coating.
2. The flexible touch display panel of claim 1, wherein the flexible substrate has an upper surface and a lower surface opposite to the upper surface, and wherein the touch device layer and the polarizer are disposed on the upper surface.
3. The flexible touch display panel of claim 1, wherein the flexible substrate has an upper surface and a lower surface opposite to the upper surface, wherein the touch device layer is disposed on the lower surface, and the polarizer is disposed on the upper surface.
4. The flexible touch display panel of claim 1, wherein the hard coating covers the shielding layer and the polarizer, and the hard coating is in direct contact with the polarizer.
5. The flexible touch display panel of claim 1, wherein the shielding layer is disposed on the polarizer.
6. The flexible touch display panel of claim 1, wherein the shielding layer is disposed on a side of the polarizer.
7. The flexible touch display panel of claim 1, wherein the polarizer is vertically projected onto the flexible substrate and has a first outer edge, and the shielding layer is vertically projected onto the flexible substrate and has an inner opaque boundary, wherein the inner opaque boundary is aligned with the first outer edge.
8. The flexible touch display panel of claim 1, wherein the area of the shielding layer perpendicularly projected onto the flexible substrate at least partially overlaps the area of the polarizer perpendicularly projected onto the flexible substrate.
9. The flexible touch display panel of claim 1, wherein the polarizer is vertically projected onto the flexible substrate and has a first outer edge, and the shielding layer is vertically projected onto the flexible substrate and has a light-shielding outer boundary, wherein the first outer edge is aligned with the light-shielding outer boundary.
10. The flexible touch display panel of claim 1, further comprising a display module, wherein the touch module is disposed on one side of the display module.
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| CN201911298612.2A CN112987955A (en) | 2019-12-17 | 2019-12-17 | Flexible touch display panel |
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| CN201911298612.2A CN112987955A (en) | 2019-12-17 | 2019-12-17 | Flexible touch display panel |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108021284A (en) * | 2017-12-15 | 2018-05-11 | 武汉华星光电半导体显示技术有限公司 | Integrated flexible touch-screen and preparation method thereof, OLED display |
| KR20180124828A (en) * | 2016-10-12 | 2018-11-21 | 동우 화인켐 주식회사 | Method of manufacturing a window substrate |
| CN109116618A (en) * | 2018-09-20 | 2019-01-01 | 武汉华星光电半导体显示技术有限公司 | Polarization elements |
| CN109585674A (en) * | 2018-11-13 | 2019-04-05 | 武汉华星光电半导体显示技术有限公司 | Display module and preparation method thereof, electronic device |
| CN109696979A (en) * | 2017-10-20 | 2019-04-30 | 南昌欧菲光科技有限公司 | Display component and terminal device |
| CN110085138A (en) * | 2019-04-22 | 2019-08-02 | 武汉华星光电半导体显示技术有限公司 | A kind of OLED display module |
| CN110325885A (en) * | 2017-02-23 | 2019-10-11 | 东友精细化工有限公司 | It is integrated with the optical stack structure of polarizing layer and touch sensor and the image display including the optical stack structure |
| CN110531897A (en) * | 2019-09-09 | 2019-12-03 | 业成科技（成都）有限公司 | Cover plate assembly, preparation method, touch panel and display device |
-
2019
- 2019-12-17 CN CN201911298612.2A patent/CN112987955A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180124828A (en) * | 2016-10-12 | 2018-11-21 | 동우 화인켐 주식회사 | Method of manufacturing a window substrate |
| CN110325885A (en) * | 2017-02-23 | 2019-10-11 | 东友精细化工有限公司 | It is integrated with the optical stack structure of polarizing layer and touch sensor and the image display including the optical stack structure |
| CN109696979A (en) * | 2017-10-20 | 2019-04-30 | 南昌欧菲光科技有限公司 | Display component and terminal device |
| CN108021284A (en) * | 2017-12-15 | 2018-05-11 | 武汉华星光电半导体显示技术有限公司 | Integrated flexible touch-screen and preparation method thereof, OLED display |
| CN109116618A (en) * | 2018-09-20 | 2019-01-01 | 武汉华星光电半导体显示技术有限公司 | Polarization elements |
| CN109585674A (en) * | 2018-11-13 | 2019-04-05 | 武汉华星光电半导体显示技术有限公司 | Display module and preparation method thereof, electronic device |
| CN110085138A (en) * | 2019-04-22 | 2019-08-02 | 武汉华星光电半导体显示技术有限公司 | A kind of OLED display module |
| CN110531897A (en) * | 2019-09-09 | 2019-12-03 | 业成科技（成都）有限公司 | Cover plate assembly, preparation method, touch panel and display device |
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