KR20200021406A - Apparatus of detachable display having integral cover - Google Patents

Abstract

Provided is a detachable display apparatus including an integral cover which a transparent sheet and a touch screen are attached to and detached from to improve functions of adjusting adhesion for attachment and detachment, preventing a foreign substance from being attached, preventing a fingerprint from being left, easily removing an air bubble and being smoothly applied to a curved display, and to realize flattening. The detachable display apparatus comprises: a transparent sheet; an integral cover; a touch screen; and a display, wherein the integral cover houses the touch screen with one side open and the side extended, and either a detachable layer or an adhesive adjusting layer is placed on an upper surface of the integral cover.

Description

Detachable display device including integral cover {Apparatus of detachable display having integral cover}

The present invention relates to a display device, and more particularly, to a display device applied to a detachable window and a touch screen using an integrated cover.

In the display device, a display such as a liquid crystal display (LCD), an organic light emitting diode (OLED), a micro LED, and an electrophoretic display device (EPD) forms a screen. Such a display device is applied to various video display devices. On the other hand, the device employs a touch screen to provide convenience of operation. A window made of tempered glass or transparent polymer resin is disposed on the front of the touch screen. The window is divided into a screen portion and a bezel portion on the edge at the center thereof, and protects the display device from damage from external impact or contact. Recently, with the advent of flexible and curved displays, windows corresponding to them have emerged.

Korean Patent No. 10-1574923 proposes a display device including a detachable window and a detachable method thereof. Specifically, the patent can be easily replaced because the separation of the damaged window is simple, the process of manufacturing the display device is simple, the manufacturing cost is low, it can be designed in various ways. Similarly, a display device capable of attaching and detaching a touch screen is also possible. By the way, in addition to the features set forth in the patent, it is necessary to supplement the characteristics such as adhesion control of detachment, prevention of adhesion of foreign matter, fingerprint prevention, easy bubble removal, smooth application to curved surfaces or flexible displays. That is, in order to fit the removable window or touch screen to a variety of shapes, uses and environments.

On the other hand, in order to fit the window or the touch screen in various shapes, uses and environments, the surface of the adherend to be detached is preferably flat. However, in the conventional adherend, the surface of the touch screen or the display is not flat due to various patterns or components. In this case, it is difficult to improve characteristics such as controlling adhesion of detachable, preventing adhesion of foreign matter, fingerprint prevention, easy bubble removal, and smooth application to curved surfaces or flexible displays.

The problem to be solved by the present invention is that the window and the touch screen is detachable, complementary functions such as adjusting the adhesion of the detachable, preventing adhesion of foreign matter, fingerprint prevention, easy bubble removal, smooth application to the curved display, and achieve a flattening A removable display device including an integrated cover is provided.

A detachable display device including an integrated cover for solving the problems of the present invention includes a transparent sheet, a touch screen, an integrated cover and a display, and the integrated cover has an open side and an extended side to accommodate the touch screen. On the upper surface of the integrated cover, either the detachable layer or the adhesion control layer is positioned.

In the device of the present invention, the display may be a flat or curved surface of 2D, 2.5D, 3D, flexible, foldable, rollable, or a mixture thereof. The unitary cover may further receive a display. The touch screen may be detachably attached to the integrated cover. The display may be attached to or detached from the touch screen. The detachable layer may be laminated on the transparent sheet, and the adhesion control layer may be formed on the integrated cover.

In a preferred apparatus of the present invention, the detachable layer may be a detachable pattern in the form of a pattern made by curing, corona, deposition or plasma or a combination thereof. The detachable pattern may be formed in a strip form, a grid form, an island form, a fence form, or a combination thereof. The detachable pattern may be embodied as a letter, a logo, a mark or an image.

In the device of the present invention, the adhesion control layer is a hard coating layer, a digital printing layer, a coating layer for controlling the contact angle, a deposition layer, a fine irregularity layer including a fine roughness or a surface modified layer consisting of at least one of the surface modification layer It may be an adjustment pattern. The adhesion control pattern may be made in the form of a strip, lattice, island, fence or a combination thereof. The adhesion control pattern may be implemented as a letter, logo, mark or image. Characters, logos, marks or images may be expressed on the integrated cover.

According to the detachable display device including the integrated cover of the present invention, by applying the integrated cover covering the side of the touch screen or the display or a combination thereof, while the window and the touch screen are detachable, adjusting the adhesion of the detachable, preventing adhesion of foreign matter, fingerprint Complements and flattening functions such as prevention, easy bubble removal, and smooth application to curved displays. In addition, the integrated cover can be made into a module that wraps the portion other than the window, so that the attachment and detachment can be made easier.

1 is an exploded cross-sectional view showing a first display device according to the present invention.
Figure 2 is a plan view showing an example of a removable pattern and the adhesion control pattern according to the present invention.
3 is an exploded cross-sectional view illustrating a second display device according to the present invention.
4 is an exploded cross-sectional view illustrating a third display device according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Meanwhile, in the drawings, the thicknesses of the films (layers, patterns) and regions may be exaggerated for clarity. Also, when it is mentioned that a film (layer, pattern) is on, top, bottom, one side of another film (layer, pattern), it can be formed directly on another film (layer, pattern) or between them. A film (layer, pattern) may be interposed.

Embodiment of the present invention by applying an integrated cover covering the side of the touch screen or display or a combination thereof, while the transparent sheet and the touch screen detachable, adjusting the adhesion of the detachable, preventing the adhesion of foreign substances, fingerprint prevention, easy bubble removal, The present invention provides a detachable display device that complements functions such as smooth application to curved displays and achieves flattening. To this end, the structure of the integral cover in detail, and the effect of the integral cover on the adhesion will be described in detail.

The display device applied to the embodiment of the present invention refers to a mobile device, an information processing terminal, a television, and the like. The mobile device may be a mobile phone, a smartphone, a tablet, or the like, and the information processing terminal may be an ATM or a kiosk. The display device may be flat or flat but bent, or may be flexible. The image processing device essentially includes a window, a touch screen, and a display. The window is a window for all image processing devices such as a window of a mobile device, a window of an information processing terminal, and a television. Likewise, the touch screen and the display also refer to the touch screen and the display applied to all image processing devices.

 The display device may be flat, curved, or a mixture thereof. According to the shape of the window, the display device has been developed into 2D (plane), 2.5D (front edge curved surface, back plane), and 3D (curved surface, edge). Recently, a foldable display device that can be folded or unfolded and a rollable display device that can be wound have emerged. The foldable and rollable display device is a kind of flexible display device. The display device applied to the exemplary embodiment of the present invention includes all flat or curved surfaces or mixed forms such as 2D, 2.5D, 3D, flexible, foldable, and rollable.

1 is an exploded cross-sectional view illustrating a first display device 100 according to an exemplary embodiment of the present invention. However, the drawings are not intended to be in an exact sense, and may not be shown in the drawings for the convenience of description.

Referring to FIG. 1, the first display device 100 includes a transparent sheet 10, an integrated cover 20, a touch screen 30, a display 32, and a back cover 34. The first detachable layer 13 may be stacked on the transparent sheet 10, and the thin film printing layer 11 and the concealment layer 12 may exist between the transparent sheet 10 and the first detachable layer 13. The first adhesion control layer 14 is disposed on the upper surface 20a of the integrated cover 20 to face the first detachable layer 13. The first detachable layer 13 and the first adhesion control layer 14 exist over the screen and the bezel region, but the thin film printing layer 11 and the concealment layer 12 exist only in the bezel region. In this case, the positions of the first detachable layer 13 and the first adhesion control layer 14 may be changed. In addition, the thin film printing layer 11 and the concealment layer 12 are selectively applied. If there is no bezel area in the display device of the present invention, the thin film printing layer 11 and the concealment layer 12 are not necessary.

The integrated cover 20 accommodates the touch screen 30 and may be attached to the integrated cover 20 by the transparent adhesive layer 21. The rear cover 34 accommodates the display 32, and various components 33, for example, a battery, may be mounted between the rear cover 34 and the display 32 for smooth operation of the first display device 100. have. The integrated cover 20 and the back cover 34 are coupled by the coupling portion 31. The coupling part 31 may be bonded by an adhesive, such as the transparent adhesive layer 21, and may be coupled by detachable attachment, such as the first detachable layer 13 and the first adhesion control layer 14. Here, the state bonded with the adhesive is shown. Meanwhile, the coupling part 31 may be coupled by a mechanical structure such as coupling means in the bezel area.

The transparent sheet 10 may be used without limitation as long as it is a transparent material, and serves as a window in the display device. For example, it may include a glass substrate, a sapphire substrate or a plastic substrate. Specifically, the glass substrate may be a tempered glass, the plastic substrate is made of a thermoplastic resin, preferably PET (PolyEthylene Terephthalate), PEN (PolyEthylene Naphthalate), PES (PolyEther Sulfone), PI (PolyImide), PAR (PolyARylate) ), At least one selected from polycarbonate (PC), polymethyl methacrylate (PMMA), polyurethane (PU), tri-acetyl-cellulose (TAC), and cycloolefin copolymer (COC). Tempered glass is more preferred. The transparent sheet may have a laminated structure in which a tempered glass and a plastic substrate are formed in multiple layers.

The anti-fingerprint, anti-reflection, blue light blocking, electromagnetic wave blocking, privacy, and antimicrobial properties may be imparted on the transparent sheet 10. For example, a fluorine-based coating solution may be wet coated or dry coated by vacuum deposition to form an anti-fingerprint coating layer to impart an anti-fingerprint function. The coating layer of the transparent sheet 10 may be an anti-fingerprint or anti-fingerprint and antibacterial glass or a plastic substrate with anti-fingerprint or anti-fingerprint and antimicrobial treatment. As such, the coating allows the transparent sheet 10 to express various functions. Optionally, the transparent sheet 10 may employ a slim tempered glass having a thickness of approximately 10 μm to 150 μm. The slim tempered glass has a failure mechanism in which cracks do not accompany debris. Since there are no scattering debris and no sharp edges, there is no debris or injury to the user or debris that is sucked into the human body. The slim tempered glass is free from warpage, and thus is particularly effective when applied to the screen area of the second type.

Printing of the thin film print layer 11 can be a variety of ways. For example, printing by the silk screen method, offset printing, lithography printing, or the like, or digital printing is preferable. The digital printing is a method of printing on the transparent sheet 10 by spraying the ink containing a variety of colors at once. On the other hand, the silk screen method and offset printing have to go through several times, and the lithographic printing uses a mask. The thin film printing layer 11 additionally serves to prevent the transparent sheet 10 from scattering when the transparent sheet 10 is broken. The concealment layer 12 improves the concealment of the thin film printing layer 11 so that the image of the thin film printing layer 11 is clearly displayed. The concealment layer 12 may be a white ink layer coated with white ink or a metal thin film on which a metal material having excellent reflectivity is deposited. The whiteness of the white ink layer can be adjusted by adding a small amount of other pigments other than white.

 The first detachable layer 13 has an appropriate adhesive strength of about 0.05 gf / 25 mm to 500 gf / 25 mm, and more preferably 0.2 gf / 25 mm to 50 gf / 25 mm. This is less than 1,500 gf / 25 mm, which is the conventional adhesion of conventional adhesive layers, and thus is distinguished from conventional adhesive layers. Here, the first detachable layer 13 of the present invention is optically transparent and applies an adhesive that is cured by heat treatment or UV (ultraviolet). The adhesive is cured to a semi-solid state when subjected to heat treatment or UV treatment at a predetermined temperature and time. The gluing method allows the buyer to easily laminate by hand without bubbles.

The first detachable layer 13 may be used in various ways within the technical spirit of the present invention, but an acrylic polymer, a silicone polymer, a urethane polymer, an ultraviolet-curable resin and an adhesive or a mixture thereof or a copolymer thereof are preferable. . In some cases, the first detachable layer 13 may be mixed with a functional material such as silica gel, nanoparticles, and an antistatic agent to improve physical properties of the first detachable layer 13. In addition, the optical properties may be improved by adding particles forming a quantum dot to the first detachable layer 13.

As illustrated in FIG. 2, the first detachable layer 13 may be a detachable pattern in a pattern form formed by curing, corona, vapor deposition, plasma, or a combination thereof. According to FIG. 2, the pattern arrangements a, b, c, d are partially modified without modifying the first detachable layer 13 as a whole. That is, the pattern arrays a, b, c, and d are present in the first detachable layer 13. The pattern arrays a, b, c, and d utilize various patterns in plan. Specifically, a B pattern having a stripe shape and extending in the longitudinal direction of the pattern arrays (a, b, c, d), a B pattern having the same adhesive force as the A pattern, and having different adhesive strengths, a C pattern having a single island shape and a plurality of islands. Dog pattern D pattern, E pattern C pattern expanded form, F pattern with the same adhesive strength as E pattern, G pattern with fence form, H pattern with G pattern and adhesive strength with fence form, pattern arrangement ( I pattern arrange | positioned at the corner of a, b, c, d). The adhesion can be controlled by the extent to which the surface is modified.

In the embodiment of the present invention, the detachable pattern is a curing pattern by a curing treatment, a corona pattern by a corona treatment, a plasma pattern by a plasma treatment, by appropriately adjusting the arrangement of the deposition pattern by deposition, thereby freely adjusting the adhesive force according to the position Regardless of the shape can be attached stably. Regardless of the shape, when attached stably, detachment does not occur and bubbles are easily removed.

The curing treatment may be implemented as a thermosetting adhesive layer or an ultraviolet curable adhesive layer. The thermosetting adhesive layer may be variously selected within the scope of the present invention. For example, an acrylic resin containing a hydroxyl group, an acrylic resin having a weight average molecular weight of 100,000 to 1,000,000, a resin composition containing block isocyanate as a main component, a composition containing a hydroxyl group containing acrylic resin and block isocyanate as essential components, and an isocyanate group And compounds containing two or more functional groups in one molecule and block isocyanates. The said ultraviolet curable adhesion layer is made by mix | blending various acryl units and an ultraviolet curing catalyst, for example, a polyurethane resin, an epoxy resin, or a polyester resin.

The corona treatment improves the adhesion of the surface of the first detachable layer 13 to be treated using a corona discharge technique. When the first detachable layer 13 is treated with corona, the charged surface in the corona collides with the film surface, thereby oxidizing the film surface. Therefore, the surface energy of the film is increased by the polar groups generated by the surface oxidation, such as C = O, COH, COOH, -COO-, -CO-, so that the affinity with the conductive polymer material is improved and the adhesion of the film is improved. Will be. In addition, the corona treatment may form a crosslinked structure between polymer molecules in addition to the chemical polar groups as described above, thereby improving adhesion. In the corona surface treatment, the first desorption layer 13 is typically placed between the two electrodes where the corona discharge is made, and a constant power is supplied to both electrodes to cause the corona discharge, resulting in an adhesive force of 0.1 gf / 25 mm to 1000 gf /. 25mm surface modification.

The plasma treatment uses a plasma method such as atmospheric pressure plasma, reduced pressure plasma, corona plasma, or the like. That is, not only chemically cleans the surface in order to improve the adhesion of the first detachable layer 13, but also organic matters on the surface are removed by chemical and physical reactions while activating the surface. The first detachable layer 13 subjected to the plasma treatment changes chemical bonds in a region within several micrometers from the surface by using high energy of ions or electrons. In addition, a certain thickness of the surface is scraped off to increase the contact angle. The surface of the first detachable layer 13 is chemically or physically activated to react well with other materials. In this way, the plasma-modified surface modification is performed such as surface cleaning such as removing fine foreign substances, changing surface roughness, and forming polar functional groups.

The deposition process is gold (Au), silver (Ag), platinum (Pt), silicon (Si), copper (Cu), palladium (Pd), nickel (Ni), tungsten (W), iron (Fe), cobalt (Co), titanium (Ti), chromium (Cr), manganese (Mn), zinc (Zn), zirconium (Zr), molybdenum (Mo), iridium (Ir), ruthenium (Ru), tantalum (Ta) or these It may be composed of a single layer or a multilayer consisting of at least one of an alloy or oxides thereof. The deposition pattern is deposited in an angstrom thickness, and generally increases adhesion to the first detachable layer 13. In order to form the deposition pattern is not necessarily limited to this, a masking method or the like can be used.

Since the corona pattern, the plasma pattern, and the deposition pattern have different mechanisms, the adhesive force is implemented differently. In terms of adjusting the adhesive force, the corona pattern, the plasma pattern and the deposition pattern have the same function. However, each of the corona pattern, the plasma pattern, and the deposition pattern has different characteristics in terms of adhesion. The present invention controls the adhesive force of the first detachable layer 13. To this end, the corona pattern, the plasma pattern, and the deposition pattern use respective adhesion. Accordingly, the corona pattern, the plasma pattern, and the deposition pattern may not be considered equal to each other. In other words, the combination of the first detachable layer 13, the corona pattern, the first detachable layer 13, the plasma pattern, and the first detachable layer 13 and the deposition pattern may have different adhesive strengths.

The first adhesion control layer 14 lowers the frictional force to increase the slip property. The first detachable layer 13 is easily detached by the first adhesion control layer 14. The first adhesion control layer 14 may use a coating material of fluorine resin or silicone resin. In some cases, the first adhesion control layer 14 is formed by depositing titania (TiO ₂ ) or silica (SiO ₂ ) on the integrated cover 20 and then coating fluorine resin or silicon resin on the deposited touch screen. can do. In this case, the fluorine resin or the silicone resin may be formed by an ECC (Easy Cleaning Coating) method. Applying the first adhesion control layer 14, it is possible to more effectively suppress the generation of bubbles when the first detachable layer 13 is attached. In addition, the first adhesion control layer 14, the buyer can be easily attached and detached without a separate tool.

The first pressure-sensitive adhesive layer 14 may be a pressure-sensitive adhesive pattern in the form of a pattern formed by hard coating, digital printing, contact angle control, deposition, fine roughness or surface modification or a combination thereof. Examples of the adhesion control pattern of the first adhesion control layer 14 is the same as the detachment pattern of FIG. Here, only a few examples of the pattern arrangement (a, b, c, d), it can be variously modified within the scope of the present invention.

The hard coating process may be a thermosetting hard coating layer or an ultraviolet curing hard coating layer. Thermal curing and UV curing are as described for the desorption pattern. The digital printing process is a digitally printed layer. The contact angle control treatment may coat the organosilicon compound as an example of the coating to increase the adhesion by reducing the contact angle. Examples of coatings that lower the adhesive force by increasing the contact angle may include anti-fingerprint, antifouling, and slip properties, and deposit titania (TiO ₂ ) or silica (SiO ₂ ) on the integrated cover 20, and then on the deposition layer. It may be formed by coating a fluorine resin, a silicone resin or a mixture thereof. In this case, the fluorine resin or the silicone resin may be formed by an ECC (Easy Cleaning Coating) method.

The deposition process is gold (Au), silver (Ag), platinum (Pt), silicon (Si), copper (Cu), palladium (Pd), nickel (Ni), tungsten (W), iron (Fe), cobalt (Co), titanium (Ti), chromium (Cr), manganese (Mn), zinc (Zn), zirconium (Zr), molybdenum (Mo), iridium (Ir), ruthenium (Ru), tantalum (Ta) or It may consist of a single layer or a plurality of layers made of any of these alloys or oxides thereof. The deposition layer increases the adhesion with the first detachable layer 13. The fine roughening process may be, for example, molded into one of a shape selected from squares, triangles, and circles, or may be made of beads or beads and binders. That is, the cross-section of the fine concave-convex layer may be angled, curved, or a combination thereof. The fine concave-convex layer is translucent, resulting in low light transmittance. Since the first detachable layer 13 penetrates into the fine irregularity layer, the bonding force of the first detachable layer 13 is increased. In the surface modification treatment, the surface of the transparent polymer film is treated with a plasma or corona treatment or a continuous treatment thereof, thereby increasing adhesion to the first detachable layer 13.

The detachable pattern and the adhesion control pattern of the present invention may be implemented in a pattern such as a letter, a logo, a mark or an image while being formed in a strip form, a grid form, an island form, a fence form or a combination thereof. The pattern may appear in the field of view when the first display device 100 is turned off, and may be translucent mirror or semi-transparent color printing that disappears in the field of view when turned on. In addition, the pattern may be mirror or color printing that appears in the visual field even when the first display device 100 is turned on and turned off. In some cases, the pattern may be treated with fluorescence. Further, the pattern can be expressed by using physical quantities such as a battery, sunlight, heat, a magnetic field, and electromagnetic waves.

The touch screen 30 is a touch screen in which a conductive pattern is formed on one side or both sides of an insulating layer made of metal oxide or plastic. The conductive pattern is mainly applied to metal oxides, and the metal oxides include ITO, ATO, ZnO, or Cu, conductive polymers, or silver nanowires. The touch screen cover layer prevents the touch screen from being damaged by impact or contamination. The cover layer may be used without limitation as long as it is a transparent material. For example, it may include a glass substrate or a plastic substrate. Specifically, the glass substrate may be tempered glass or non-tempered glass, and the plastic substrate may also be polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyether sulfone (PES), polyimide (PI), polyarylate (PAR), PC (polycarbonate), PMMA (polymethyl methacrylate) or COC (cycloolefin copolymer) may include any one or more. Plastic substrates are more preferred. The thickness of the cover layer may be sufficient so that the touch screen is not damaged in the process of using the first display device 100.

The display 32 includes a liquid crystal display (LCD), a light emitting diode (LED), an organic light emitting diode (OLED), a micro LED, an electrophoretic display (EPD), and the like, and may also use quantum dots. The rear cover 34 is disposed on the opposite side of the transparent sheet 10 to protect the display, and may be made of a material such as transparent tempered glass or opaque plastic. For example, the back cover 20 may apply a material to which a fifth generation of wavelengths can pass, such as tempered glass, sapphire, quartz, etc., for a communication method.

The integrated cover 20 accommodates the touch screen 30. To this end, the integrated cover 20 is open at one side, the touch screen 30 is located inside the integrated cover 20. The first adhesion control layer 14 is positioned on the upper surface 20a of the integrated cover 20. The integrated cover 20 can be used without limitation as long as it is a transparent material. For example, it may include a glass substrate or a plastic substrate. Specifically, the glass substrate may be tempered glass or non-tempered glass, and the plastic substrate may also be polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyether sulfone (PES), polyimide (PI), polyarylate (PAR), PC (polycarbonate), PMMA (polymethyl methacrylate) or COC (cycloolefin copolymer) may include any one or more. Plastic substrates are more preferred. The thickness of the integrated cover 20 may be sufficient so that the touch screen 30 is not damaged in the process of using the first display device 100.

The side surface 20b of the integrated cover 20 is sufficient to accommodate the touch screen 30, and may be made of an opaque material or opaque by coating or the like as necessary. When the integrated cover 20 is used, the surface of the first adhesion control layer 14 to which the first detachable layer 13 is deposited is flat. If the surface is flat, it is advantageous to improve properties such as controlling adhesion of detachable, preventing adhesion of foreign matter, fingerprint prevention, easy bubble removal, smooth application to curved surfaces or flexible displays, and the like. If the surface is flat, there is no curvature such as irregularities on the surface, so that the integrated cover 20 is more flat and curved.

In addition, since the integrated cover 20 has a structure in which the upper surface 20a and the side surface 20b are sealed, it is possible to block the inflow of foreign substances such as moisture from the outside. In the embodiment of the present invention, the integrated cover 20 in which the touch screen 20 is accommodated may be a single module. The transparent sheet 10 is attached to and detached from the module without being attached to the touch screen 20.

3 is an exploded cross-sectional view illustrating a second display device 200 according to an exemplary embodiment of the present invention. In this case, the second display device 200 is the same as the first display device 100 except for the second detachable layer 40 and the second adhesion control layer 41. Accordingly, detailed description of the overlapped portion will be omitted.

Referring to FIG. 3, the second detachable layer 40 and the second adhesion control layer 41 of the second display device 200 are positioned between the inner surface of the integrated cover 20 and the touch screen 30. That is, the transparent adhesive layer 21 of the first display device 100 is replaced with the second detachable layer 40 and the second adhesion control layer 41, so that the touch screen 30 can be attached and detached. The material, function, and role of the second detachable layer 40 and the second adhesion control layer 41 are the same as those of the first detachable layer 13 and the first adhesion control layer 14 of the first display device 100. . At this time, the positions of the second detachable layer 40 and the second adhesion control layer 41 may be interchanged.

4 is an exploded cross-sectional view illustrating a third display device 300 according to an exemplary embodiment of the present invention. In this case, the third display device 300 is the same as the first display device 100 except that the third display device 300 is deformed from the integrated cover 25 and the rear cover 35. Accordingly, detailed description of the overlapped portion will be omitted.

Referring to FIG. 4, the integrated cover 25 of the third display device 300 accommodates the touch screen 30 and the display 32. As for the integrated cover 25, the upper surface 25a of the integrated cover 25 is positioned with the first adhesive control layer 14, and the side surface 25b is sufficient to accommodate the touch screen 30 and the display 32. . The rear cover 35 is on the outside of the display 32. In addition, the transparent adhesive layer 21 and the coupling part 31 are replaced with the detachable layer and the adhesion control layer, so that the touch screen 30 and the display 32 can be attached and detached. When the integrated cover 25 is used, the surface of the first adhesion control layer 14 to which the first detachable layer 13 is deposited is flat, so that physical properties can be improved as described above.

As mentioned above, although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is possible.

10; Transparent sheet 11; Thin film printing layer
12; Concealed layer
13, 40; First and second removable layer
14, 41; First and second adhesion control layer
20, 25; Integrated cover
21; Transparent layer 30; touch screen
31; Coupling part 32; display
34, 35; Back cover

Claims (13)

Including a transparent sheet, an integrated cover, a touch screen and a display,
The integrated cover includes an integrated cover, wherein one side of the integrated cover is extended and the side thereof extends to accommodate the touch screen, and either one of a detachable layer and an adhesive control layer is disposed on an upper surface of the integrated cover. The detachable display device of claim 1, wherein the display is a flat or curved surface of a 2D, 2.5D, 3D, flexible, foldable, rollable, or a mixture thereof. The detachable display device of claim 1, wherein the unitary cover further includes a display. The detachable display device of claim 1, wherein the touch screen is detachably attached to the integrated cover. The detachable display device of claim 1, wherein the display is detachably attached to the touch screen. The detachable display device of claim 1, wherein the detachable layer is laminated on the transparent sheet, and the adhesion control layer is formed on the integrated cover. The detachable display device of claim 1, wherein the detachable layer is a detachable pattern having a pattern formed by curing, corona, vapor deposition, plasma, or a combination thereof. The detachable display device of claim 7, wherein the detachable pattern comprises a strip, a grid, an island, a fence, or a combination thereof. The detachable display device of claim 7, wherein the detachable pattern is formed of a letter, a logo, a mark, or an image. The method of claim 1, wherein the adhesion control layer is a hard coating layer, a digital printing layer, a coating layer for controlling the contact angle, a deposition layer, a fine irregularity layer including a fine roughness or a surface modification layer consisting of at least one of a surface modification layer Detachable display device including an integrated cover, characterized in that the pattern. The detachable display device of claim 10, wherein the adhesion control pattern comprises a strip, a grid, an island, a fence, or a combination thereof. The detachable display device of claim 10, wherein the adhesion control pattern is formed of a letter, a logo, a mark, or an image. The detachable display device of claim 1, wherein the integrated cover is characterized by a text, a logo, a mark, or an image.

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