WO2020040489A1 - Dispositif d'indication de fixation/séparation - Google Patents

Dispositif d'indication de fixation/séparation Download PDF

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Publication number
WO2020040489A1
WO2020040489A1 PCT/KR2019/010430 KR2019010430W WO2020040489A1 WO 2020040489 A1 WO2020040489 A1 WO 2020040489A1 KR 2019010430 W KR2019010430 W KR 2019010430W WO 2020040489 A1 WO2020040489 A1 WO 2020040489A1
Authority
WO
WIPO (PCT)
Prior art keywords
detachable
layer
pattern
display device
back cover
Prior art date
Application number
PCT/KR2019/010430
Other languages
English (en)
Korean (ko)
Inventor
김영수
Original Assignee
김영수
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020190099405A external-priority patent/KR20200021407A/ko
Application filed by 김영수 filed Critical 김영수
Publication of WO2020040489A1 publication Critical patent/WO2020040489A1/fr

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Classifications

    • 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

Definitions

  • the present invention relates to a detachable display device, and more particularly, to a display device having a detachable function of a rear cover.
  • a display such as a liquid crystal display (LCD), an organic light emitting diode (OLED), and an electrophoretic display device (EPD) forms a screen.
  • LCD liquid crystal display
  • OLED organic light emitting diode
  • EPD electrophoretic display device
  • 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 the center screen and the bezel area of the edge, and protects the display device from damage from external impact or contact.
  • Korean Patent No. 10-1574923 proposes a display device including a detachable window and a detachable method thereof.
  • the patent can easily replace the damaged window, the separation of the window from the display device is simple, the process of manufacturing the display device is simple, low manufacturing cost, it can be designed in various ways. If the back cover is damaged, the process of removing or replacing it is complicated.
  • a back cover that is easily damaged by an impact such as glass is used. Accordingly, there is an increasing need to easily remove or replace a damaged back cover.
  • the present invention has been made in an effort to provide a detachable display device including a back cover suitable for a fifth generation communication method, which can be easily removed or replaced even if the back cover is damaged.
  • a detachable display device including a back cover for solving the problems of the present invention includes a display unit including a window, a touch screen and a display, and a back cover detachable from the display unit. At this time, either the detachable layer or the adhesion control layer is disposed on the display unit and the rear cover.
  • the display may be a flat or curved surface of 2D, 2.5D, 3D, flexible, foldable, rollable, or a mixture thereof.
  • the back cover may pass through the wavelength of the fifth generation communication frequency.
  • the detachable layer may be stacked on the display unit, and the adhesion control layer may be formed on the rear cover.
  • 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.
  • 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 formed in a strip form, a lattice form, an island form, a fence form 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 rear cover.
  • the detachable function is provided to the rear cover so that the rear cover can be easily removed or replaced even if the rear cover is damaged.
  • the back cover applied to the fifth generation communication method can be easily removed or replaced.
  • FIG. 1 is an exploded cross-sectional view illustrating a detachable display device including a back cover 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.
  • An embodiment of the present invention provides a detachable display device which is provided with a detachable function on a rear cover so that the rear cover can be easily removed or replaced even if the rear cover is damaged.
  • the rear cover will be described in detail, and a display device including a rear cover to which a detachable function is provided will be described in detail. Since the back cover of the present invention has to pass the wavelength of the fifth generation frequency for the fifth generation communication method, glass or the like that is easily damaged by an impact is used. Embodiment of the present invention is applied to the fifth generation communication, it is more preferable for the back cover of a material that is likely to damage.
  • 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, 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.
  • FIG. 1 is an exploded cross-sectional view illustrating a detachable display device including a back cover according to an exemplary embodiment of the present invention.
  • the drawings are not intended to be in an exact sense, and may not be shown in the drawings for the convenience of description.
  • the display device of the present invention includes a display unit D, a detachable layer 10, an adhesion control layer 12, and a back cover 20. At this time, the positions of the detachable layer 10 and the adhesion control layer 12 may be changed.
  • the display unit D 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.
  • the touch screen and the display also refer to the touch screen and the display applied to all image processing devices.
  • the display unit D is employed in a display device having a flat or curved surface or a mixture thereof, such as 2D, 2.5D, 3D, flexible, foldable, and rollable.
  • Detachable layer 10 is suitable for the adhesive force of about 0.05gf / 25mm to 500gf / 25mm, 0.2gf / 25mm to 50gf / 25mm is more preferred. 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.
  • the detachable layer 10 of the present invention is an 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 detachable layer 10 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.
  • the physical properties of the desorption layer 10 may be improved by mixing functional materials such as silica gel, nanoparticles, and an antistatic agent to the desorption layer 10.
  • optical properties may be improved by adding particles forming a quantum dot to the detachable layer 10.
  • the detachable layer 10 may be a detachable pattern in the form of a pattern formed by curing, corona, deposition, or plasma or a combination thereof as shown in FIG. 2.
  • the pattern arrays a, b, c, and d are partially modified without modifying the detachable layer 10 as a whole. That is, the pattern arrays a, b, c, and d are present in the detachable layer 10.
  • the pattern arrays a, b, c, and d utilize various patterns in plan.
  • the adhesion can be controlled by the extent to which the surface is modified.
  • 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.
  • 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
  • the corona treatment improves the adhesion of the surface of the detachable layer 10 to be treated using a corona discharge technique.
  • the detachable layer 10 is treated with corona
  • the corona treatment may form a crosslinked structure between polymer molecules in addition to the chemical polar groups as described above, thereby improving adhesion.
  • the detachable layer 10 is typically placed between the two electrodes where the corona discharge is made, and the corona discharge is generated by supplying a constant power to both electrodes, and the adhesive force on the surface is 0.1gf / 25mm to 1000gf / 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 adhesion of the detachable layer 10, but also organic matters on the surface are removed by chemical and physical reactions while activating the surface.
  • the desorption layer 10 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 detachable layer 10 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 detachable layer 10. In order to form the deposition pattern is not necessarily limited to this, a masking method or the like can be used.
  • the adhesive force is implemented differently.
  • the corona pattern, the plasma pattern and the deposition pattern have the same function.
  • each of the corona pattern, the plasma pattern, and the deposition pattern has different characteristics in terms of adhesion.
  • the present invention is to control the adhesion of the removable layer (10).
  • 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.
  • the combination of the detachable layer 10, the corona pattern, the detachable layer 10, the plasma pattern, and the detachable layer 10 and the deposition pattern has different adhesive strengths.
  • the adhesion control layer 12 increases the slip property by lowering the frictional force.
  • the detachable layer 10 is easily detached by the adhesion control layer 12.
  • the adhesion control layer 12 may be a coating material of fluorine resin or silicone resin.
  • the adhesion control layer 12 may be formed by depositing titania (TiO 2 ) or silica (SiO 2 ) on the rear cover 20 and then coating a fluorine resin or a silicone resin on the deposited touch screen. have.
  • the fluorine resin or the silicone resin may be formed by an ECC (Easy Cleaning Coating) method. Applying the adhesion control layer 12, it is possible to more effectively suppress the generation of bubbles when attaching the detachable layer (10). In addition, by the adhesion control layer 12, the buyer can be easily removable without a separate tool.
  • the adhesion control layer 12 may be a adhesion control 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 adhesion control layer 12 is the same as the detachment pattern of FIG.
  • 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 back 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.
  • ECC Easy Cleaning Coating
  • 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 plurality of layers consisting of any one of alloys or oxides thereof.
  • the deposition layer increases adhesion to the detachable layer 10.
  • 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 detachable layer 10 penetrates into the fine uneven layer, the bonding force of the detachable layer 10 is increased.
  • the surface of the transparent polymer film is treated by plasma or corona treatment or a continuous treatment thereof to increase adhesion to the detachable layer 10.
  • 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 can 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 pattern can also be implemented in the back cover 34.
  • the rear cover 34 is disposed opposite the window to protect the display, and may be made of a material such as transparent tempered glass, opaque plastic, a metal such as titanium alloy, magnesium alloy, or the like.
  • the back cover 20 may use a material that allows a fifth generation of wavelengths to pass, such as tempered glass, sapphire, quartz, etc., for a communication method.
  • the rear cover 20 is easily damaged by the impact. By the way, by using the removable layer 10 and the adhesion control layer 12 of the present invention, since the damaged back cover 20 is easily separated, the removal of the damaged back cover 20 and replacement with a new back cover 20 You can do it easily.
  • the back cover 34 may be fixed or detachable elements having various functions.
  • the various functions include a financial settlement card, a card function such as a transportation card, a storage function for storing data, a security function for implementing security, and the like.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un dispositif d'indication de fixation/séparation qui comprend un couvercle arrière approprié pour un procédé de communication de cinquième génération et dans lequel le couvercle arrière peut facilement être retiré ou remplacé même lorsqu'il est endommagé. Le dispositif comprend : une partie d'affichage comprenant une fenêtre, un écran tactile, et un dispositif d'affichage ; et le couvercle arrière fixé à la partie d'affichage ou séparé de ce dernier. Sur la partie d'affichage et sur le couvercle arrière, il est prévu une couche détachable ou une couche de réglage d'adhérence, celles-ci se faisant face.
PCT/KR2019/010430 2018-08-20 2019-08-16 Dispositif d'indication de fixation/séparation WO2020040489A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20180096555 2018-08-20
KR10-2018-0096555 2018-08-20
KR10-2019-0099405 2019-08-14
KR1020190099405A KR20200021407A (ko) 2018-08-20 2019-08-14 배면커버를 포함하는 탈부착 표시장치

Publications (1)

Publication Number Publication Date
WO2020040489A1 true WO2020040489A1 (fr) 2020-02-27

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ID=69592464

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Application Number Title Priority Date Filing Date
PCT/KR2019/010430 WO2020040489A1 (fr) 2018-08-20 2019-08-16 Dispositif d'indication de fixation/séparation

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WO (1) WO2020040489A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004231723A (ja) * 2003-01-29 2004-08-19 Nitto Denko Corp 両面粘着シートおよびタッチパネル付き表示装置
KR20120134934A (ko) * 2011-06-03 2012-12-12 엘지전자 주식회사 디스플레이 모듈 및 이를 구비하는 이동 단말기
US20150153781A1 (en) * 2013-11-29 2015-06-04 Inventec Corporation Touch Control Display Device
KR20170082430A (ko) * 2016-01-06 2017-07-14 삼성전자주식회사 플렉서블 디스플레이 윈도우 및 그를 구비하는 전자 장치
KR20180037108A (ko) * 2016-10-03 2018-04-11 김영수 탈부착 패턴을 가진 디스플레이 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004231723A (ja) * 2003-01-29 2004-08-19 Nitto Denko Corp 両面粘着シートおよびタッチパネル付き表示装置
KR20120134934A (ko) * 2011-06-03 2012-12-12 엘지전자 주식회사 디스플레이 모듈 및 이를 구비하는 이동 단말기
US20150153781A1 (en) * 2013-11-29 2015-06-04 Inventec Corporation Touch Control Display Device
KR20170082430A (ko) * 2016-01-06 2017-07-14 삼성전자주식회사 플렉서블 디스플레이 윈도우 및 그를 구비하는 전자 장치
KR20180037108A (ko) * 2016-10-03 2018-04-11 김영수 탈부착 패턴을 가진 디스플레이 장치

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