US20200161581A1 - Display apparatus and method for attaching display panel - Google Patents
Display apparatus and method for attaching display panel Download PDFInfo
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- US20200161581A1 US20200161581A1 US16/749,582 US202016749582A US2020161581A1 US 20200161581 A1 US20200161581 A1 US 20200161581A1 US 202016749582 A US202016749582 A US 202016749582A US 2020161581 A1 US2020161581 A1 US 2020161581A1
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- display panel
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- holding member
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- concave portion
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Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
-
- H01L51/5237—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
- B60R11/0235—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes of flat type, e.g. LCD
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
-
- H01L27/3244—
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0026—Windows, e.g. windscreen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/0049—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
- B60R2011/005—Connection with the vehicle part
- B60R2011/0063—Connection with the vehicle part using adhesive means, e.g. hook and loop fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/0049—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
- B60R2011/0064—Connection with the article
- B60R2011/0077—Connection with the article using adhesive means, e.g. hook and loop fasteners
Definitions
- the present invention relates to a display apparatus and a method for attaching a display panel.
- an image display panel disposed to be spaced from the window glass via an elastic member or the like is pressed towards the window glass while being elastically deformed by rolling of a roller from one end to the other end thereof. Consequently, the image display panel and the window glass are bonded with each other via a layer including a photocurable resin.
- Patent Document 1 a display panel which is bonded with the supporting member by using an bonding agent composed of a photocurable resin or a thermosetting resin or the like, therefore it is very difficult to remove, from a supporting member. Even if the display panel could be detached, the debris of the bonding agent or the wreckage of the display panel or the supporting member remains on the respective bonding faces and thus the display panel or the supporting member cannot be easily reused. Therefore, in spite of the fact that a defect merely occurs to one of the display panel and the supporting member, it may be inevitable to discard or replace of both of them with the replacement ones. It is also difficult to accurately bond the display panel in a predetermined location when the display panel is bonded with the supporting member.
- the display panel there is a risk that a breakage of the display panel occurs if movement or rearrangement of the display panel is repeated to position in a proper position, the display panel temporarily disposed in an inappropriate position. Further, there is a problem that in a case where the supporting member is a transparent member such as a windshield of a motor vehicle or a window glass, when the display panel attached to the supporting member is not observed, the field of view is shaded, whereby the display panel becomes an obstacle.
- the supporting member is a transparent member such as a windshield of a motor vehicle or a window glass
- an object of the present invention is to provide a method for attaching a display panel which is capable of easily attaching the display panel in a predetermined location on a predetermined plane or curved surface and thereafter capable of easily removing the display panel from the mounted surface as required, and a display apparatus in which a display panel is attached to a transparent supporting member and in which even in a case where the display panel is not observed, a field of view is not degraded.
- a display apparatus comprises: an object having a plane or a curved face; a display panel having at least one of a concave portion and a convex portion at any part of a peripheral edge; a holding member mounted on a predetermined location of the object, the holding member having a convex portion or a concave portion corresponding and engaging with the concave portion or the convex portion of the display panel; and a weak adhesive layer being interposed between the object and the display panel to bring the object and the display panel into close contact with each other.
- a method for attaching a display apparatus of Embodiment 2 of the present invention comprises: preparing a display panel having at least one of a concave portion and a convex portion at any part of a peripheral edge; preparing a holding member having a convex portion or a concave portion corresponding to the concave portion or the convex portion of the display panel; bonding the holding member with an object having a predetermined plane or curved face; forming a weak adhesive layer, using an adhesive agent, on an attachment region of the object with the display panel, or a surface facing to the object in the display panel; combining the display panel to the holding member while engaging the concave portion or the convex portion of the display panel with the convex portion or the concave portion of the holding member; and bringing the display panel into close contact with the object by using the weak adhesive layer.
- a holding member capable of engaging with a display panel is attached in a normal position on a predetermined plane or curved surface and then the display panel can be mounted, so that the display panel can be easily aligned and mounted. Moreover, the display panel is attached by a weak adhesive layer and thus the display panel can be thereafter easily removed from the mounted surface in accordance with the requirement.
- the holding member can be made very small because it is sufficient if a concave portion or a convex portion which corresponds to a convex portion or a concave portion of the display panel is formed. And when the holding member is made of a transparent material, it makes more inconspicuous.
- the holding member is very unlikely to become an obstacle to a field of view, and a sense of discomfort is not felt.
- FIG. 1A is a plan view showing a display apparatus of Embodiment 1 of the present invention.
- FIG. 1B is a sectional view taken along the line IB-IB of FIG. 1A .
- FIG. 1C is a sectional view taken along the line IC-IC of FIG. 1A .
- FIG. 2A is a view illustrating another example of the display apparatus of FIG. 1A .
- FIG. 2B is a view illustrating another example of the display apparatus of FIG. 1A .
- FIG. 2C is a view illustrating a still another example of the display apparatus of FIG. 1A .
- FIG. 2D is a view illustrating a still another example of the display apparatus of FIG. 1A .
- FIG. 3A is a view illustrating a method for mounting a display panel by using a holding member.
- FIG. 3B is a view illustrating the method for mounting the display panel by using the holding member.
- FIG. 3C is a side view of FIG. 3B .
- FIG. 3D is a view illustrating the method for mounting the display panel by using the holding member.
- FIG. 4 is a structural example of essential parts of an organic EL display panel used as a display panel.
- FIG. 5A is a view showing an example of a case in which the display apparatus of FIG. 1A is mounted to a windshield of a motor vehicle.
- FIG. 5B is a view of partial steps of a method for mounting a display panel to the windshield of the motor vehicle.
- FIG. 6A is a view illustrating a mounting method in an example of a case in which the holding member is mounted to an outer edge of an object to which the display panel is to be mounted.
- FIG. 6B is a sectional side view in a state in which the display panel is mounted in the example of FIG. 6A .
- a display apparatus of Embodiment 1 of the present invention includes: an object 5 having a plane or a curved surface; a display panel 3 having at least one of a concave portion 3 a and a convex portion at any part of a peripheral edge; a holding member 1 attached on a predetermined location of the object 5 and having a convex portion 1 a or a concave portion corresponding to and engaging with a concave portion 3 a or a convex portion of the display panel 3 , and a weak adhesive layer 6 interposed between the object 5 and the display panel 3 to bring the object 5 and the display panel 3 into close contact with each other.
- the concave portion 3 a is formed in a planar direction of the display panel 3
- the convex portion 1 a is formed in a planar direction of the holding member 1
- a convex portion may be formed in the display panel 3
- a concave portion may be formed in the holding member 1 .
- the concave portion 3 a is formed in the display panel 3 because it is easier to prevent damage during handling of the display panel 3 since there is no convex portion in the display panel 3 .
- a direction of the concave portion and the convex portion is not limited to the planar direction as shown in FIG. 1A , and as shown in FIG. 3D which will be described later, the direction of the concave portion and the convex portion may be formed in a vertical direction to a surface of the display panel 3 .
- the display panel 3 may be attached to be inclined (rotated) or may be attached in a location which is displaced from an expected location. In such a case, if an attempt is made to reattach the display panel, a bonding agent or the like may remain on the object 5 , or alternatively, the display panel 3 may be damaged. Further, in a case where the display panel 3 is attached to a windshield of a motor vehicle or a window glass, as the object 5 , if the display panel 3 is not observed, the display panel may become an obstacle, and however, it has been conventionally difficult to easily release or reattach the display panel.
- the weak adhesive layer 6 a dummy sample having its adjusted external shape is also available
- a fluorine resin such as PTFE, a polyacetal resin, or a polyamide resin or the like may be used for example, in the holding member 1 .
- a silicone resin, a natural, synthetic rubber or the like which have an appropriate frictional coefficient may be used as a material for the holding member 1 .
- the holding member 1 may be formed using a light transmissible material unlikely to be recognized for a user of the display panel 3 .
- the light transmissible material is particularly useful in a case where the object 5 having a surface 5 a to be attached is formed of the light transmissible material (such as a glass, transparent polyimide, PET or the like) and further the display panel 3 has light transmissibility.
- the holding member 1 is formed using a transparent silicone-based rubber, an acryl-based resin or the like, and the holding member 1 may be formed using a glass.
- the holding member 1 is formed of a light transmissible material, it can be unlikely to become an obstacle to a field of view.
- the convex portion 1 a or the concave portion capable of engaging with the concave portion 3 a or the convex portion that are formed at an outer peripheral edge of the display panel 3 which will be described later.
- the convex portion 1 a is formed to certainly carry out positioning between the display panel 3 and the holding member 1 with eliminating displacement in the side way of the display panel 3 , or misaligned or rotated attachment of the display panel 3 in the case where the external shape of the display panel 3 is a rotatable shape such as a circular shape, as shown in FIG. 2A which will be described later. Therefore, it is sufficient that the convex portion 1 a is capable of engaging with the concave portion 3 a of the display panel 3 . It is also sufficient that the engagement between the convex portion 1 a and the concave portion 3 a and there may be a slight gap.
- the holding member 1 functions as a supporting member of the display panel 3 as well as positioning of the display panel 3 , when the holding member 1 is a structure to be engaged at a lower side of the display panel 3 .
- a groove 1 b into which a lower part of the display panel 3 can be inserted is formed.
- a depth of the groove 1 b is of the order of 1 to 2 mm.
- the groove 1 b is not limited to a case in which the holding member 1 is provided at the lower part of the display panel 3 , and even in a case where the holding member 1 is provided at an upper part of the display panel 3 , as shown in FIG. 6A and FIG. 6B , the groove 1 b contributes significantly to support the display panel 3 , which will be described later.
- the holding member 1 may be formed with one piece (section) or may be attached to be divided into a plurality of pieces 11 , 12 as shown in FIG. 2D . That is, the holding member 1 may be formed with a section having an engaging portion of the concave portion or the convex portion, and another section having no engaging portion of concave portion or the convex portion intended to merely hold the display panel 3 . If the holding member is divided into a plurality of sections, a length of each section can be reduced, the holding member is made inconspicuous, and an effect of holding the display panel 3 increases. In a case where the holding member is formed with one section, the more significantly a length L of the holding member 1 increases, the more easily the display panel 3 is supported. This is preferable.
- the shorter the holding member 1 is, the further preferable it is, in view of the fact that the display panel 3 becomes an obstacle to a field of view when not in use.
- the length L of the holding member 1 is 1/12 or more and 1 ⁇ 3 or less of a full length of the outer peripheral edge of the display panel 3 (the full length means a length presupposing that no concave portion and convex portion are formed at the outer peripheral edge), and it is further preferable that the above length is 1 ⁇ 4 or less thereof.
- a length of each section is 1/50 or more and 1/12 or less of a total length of an outer peripheral edge of the display panel 3 .
- the entirety of the plurality of sections is aligned to the external shape of the engaging part of the display panel 3 , and, in a case where the holding member is formed with one section, the single section is formed to be aligned thereto. That is, in the example shown in FIG. 1A , the engaging part is planar in shape, and in the examples shown in FIG. 2A and FIG. 2B , the engaging part is formed in a curved shape.
- the holding member 1 is bonded with the surface 5 a to be attached of the object 5 after the positioning with considering the position of the display panel 3 .
- a means for bonding the holding member 1 with the surface 5 a to be attached of the object 5 is not limited in particular, for example, the holding member 1 is bonded with the surface 5 a to be attached by using the bonding agent 8 (refer to FIG. 1C ). If necessary, heating processing is carried out in order to cure the bonding agent 8 .
- the bonding agent 8 may be applied to either one of or both of a bonding surface of the holding member 1 and the surface 5 a to be attached or the bonding agent which is formed in a frame-shaped sheet, may be placed between the holding member 1 and the surface 5 a of the object 5 (refer to FIG. 1 ).
- the bonding agent 8 is not particularly limited as long as it is possible to develop the bonding strength capable of stably bonding the holding member 1 with the surface 5 a to be attached of the object 5 .
- An arbitrary epoxy-based bonding agent or acryl-based bonding agent can be used as the bonding agent 8 .
- the bonding agent 8 that is light transmissible is used to bond the holding member 1 .
- any bonding agent which is called OCA (Optical Clear Adhesive) or OCR (Optical Clear Resin) such as film-like or paste-like acryl-based, silicone-based, or urethane-based bonding agent, can be used as the bonding agent 8 .
- the bonding strength between the holding member 1 and the surface 5 a to be attached that is obtained by the bonding agent 8 is larger than 5.0 N/10 mm and 10 N/10 mm or less, for example.
- the display panel 3 As the display panel 3 , an organic EL display panel or a liquid crystal display panel is exemplified. However, the display panel 3 is not limited thereto.
- the display panel 3 is provided with a plurality of pixels 31 which are arranged in a matrixed manner.
- a display apparatus of the present embodiment may be formed using the display panel 3 having flexibility, and the display panel 3 formed of a material having light transmissibility such as a transparent organic EL display panel may be used. This is because in a case where the abovementioned object 5 is the windshield of the motor vehicle or the window glass, the scene of the front side is easily visually recognized, and even if the surface 5 a to be attached is the curved surface, the display panel can be easily attached thereto. As long as the display panel 3 is light transmissible, in a case where the display panel 3 is not in use, the scene of the front side can be observed even if the display panel 3 is detached.
- the concave portion 3 a or a convex portion which corresponds to the convex portion or the concave portion of the holding member 1 described previously.
- the concave portion 3 a is formed at the corresponding outer peripheral edge of the display panel 3 .
- a substrate of the display panel 3 is formed of a resin film such as polyimide, when an outer peripheral edge of the substrate is cut by laser light or the like, the concave portion 3 a or the convex portion can be formed at a part to be engaged with the holding member 1 at the outer peripheral edge.
- the substrate of the display panel 3 is made of a glass
- an accessory which is designed so as to extend the convex portion in a horizontal direction may be attached. Even when a case where the convex portion is formed in a vertical direction of the display panel 3 , a projective piece can be attached.
- the concave portion 3 a can be formed by the laser light or the like after the substrate has been cut in a rectangular shape. It is further preferable that the concave portion 3 a is formed on the display panel 3 because the engaging part is unlikely to damage at the time of conveyance or mounting.
- the external shape of the display panel 3 is not limited to the rectangular shape shown in FIG. 1A .
- the external shape may be one having a curved part at the outer edge.
- the holding member 1 described above is also formed in a curved shape which corresponds to the external shape of the display panel 3 .
- the concave portion 3 a is formed at the outer peripheral edge. In a case where an engaging part with the holding member 1 is thus circular in shape, even if the display panel 3 rotates in particular, the display panel 3 is likely to get into the correct portion and thus the concave portion 3 a exerts its own effectiveness.
- the concave portion 3 a is formed at a lower edge of the display panel 3 for example, and the convex portion 1 a is formed at the holding member 1 that corresponds thereto, and the top and bottom relationship of the display panel 3 is thereby accurately secured.
- formation of the concave portion or convex portion of the display panel 3 corresponds to the location of the holding member 1 in accordance with the mounting location of the holding member 1 .
- the concave portions 3 a may be present in plurality, if the plurality of concave portions are formed at equal intervals as in a gear for example, that is not preferable because the positioning for rotation cannot be obtained. Thus, in a case where the concave portions 3 a are formed in plurality, it is preferable that the intervals be different from each other. However, as long as a single concave portion is present, such positioning can be obtained and thus a fewer number of such concave portions are preferable in terms of the manufacturing steps.
- the groove 1 b that is formed in the holding member 1 is also formed along an external arc of the display panel 3 .
- the external shape of the display panel 3 is not limited to such a circular shape, and as shown in FIG. 2B , a part thereof may be formed in an arc shape, and the remaining part thereof may be formed in a linear shape.
- a curved part may be formed in another curved shape such as an elliptical shape without being limited to an arc shape of a perfect circle. It is sufficient that the holding member 1 is formed in a shape corresponds to the external shape of the display panel 3 is formed.
- the curved part does not need to be held by the holding member 1 , and he holding member 1 may be a structure intended to hold the linear shape part of the display panel 3 .
- holding of the display panel 3 by the holding member 1 may be achieved at a side part or an upper part of the display panel 3 without being limited to a lower part of the display panel 3 .
- there is no problem because the display panel is bonded with the object 5 by way of the weak adhesive layer 6 .
- the concave portion and the convex portion may be formed in the vertical direction with respect to a surface of the display panel 3 in place of being formed in the horizontal direction thereof.
- FIG. 2C shows a state before the holding member 1 and the display panel 3 are engaged with each other. That is, a convex portion 3 c is formed in such a manner as to project from the surface of the display panel 3 , and in the holding member 1 , the concave portion 1 c engaging with the convex portion 3 c is formed.
- Such a kind of concave portion and convex portion may be present.
- a reversed relationship between the concave portion and the convex portion may also be established.
- the wiring board 9 is connected to the display panel 3 .
- the wiring board 9 electrically connects a driver (not shown) which supplies a drive signal to the display panel 3 and the display panel 3 to each other.
- Examples of the wiring board 9 include a flexible printed circuit (FPC) having a flexible film formed of a resin such as polyimide or polyethylene terephthalate and a wiring pattern formed on the flexible film using a conductor such as copper.
- the wiring board 9 is connected to the display panel 3 at one end of the wiring board 9 .
- Such one end of the wiring board 9 is connected, using an anisotropic conductive film (ACF), to a connection pad (not shown) provided on a display surface 32 of the display panel 3 .
- ACF anisotropic conductive film
- a plurality of cables may be used and one ends of such cables may be connected to the display panel 3 .
- the weak adhesive layer 6 is interposed between the display panel 3 and the surface 5 a to be attached. Owing to the adhesiveness that the weak adhesive layer 6 has, preferably in a substantially gapless state, the display panel 3 and the surface 5 a to be attached are brought into close contact with each other.
- the weak adhesive layer 6 is composed of an adhesive agent consisting essentially of an acryl-based resin, a silicone-based resin, or a urethane-based resin, for example, solely or in combination of a plurality of these resins.
- the term “weak adhesive” refers to the adhesion to an extent enough to adhere to an adhesion object tightly and yet to be released easily from the adhesion object when subjected to a force in a releasing direction without causing any damage to the adhesion object or leaving any glue on the adhesion surface.
- the display panel 3 can be easily removed as required without having excessive damage to the display panel 3 or the object 5 .
- the acryl-based resin has superior weather resistance and heat resistance and moreover has superior transparency.
- the display panel 3 is a transparent organic EL display panel and the display panel 3 is attached to an arbitrary transparent object 5
- the weak adhesive layer 6 with high transparency is preferable in view that the layer hardly influences transparency.
- the silicone-based resin also has superior weather resistance and transparency and further has superior heat resistance in particular, and hardly changes to yellow and thus is preferable as a material for the weak adhesive layer 6 .
- the weak adhesive layer 6 is preferably formed using an adhesive agent which does not have adhesiveness under a normal pressure but develops adhesiveness by being pressurized.
- the expression “does not have adhesiveness” means that in a state where an exposed surface of the weak adhesive layer 6 formed on the surface 5 a to be attached or on the display panel 3 and the object around the exposed surface come into contact with each other, the weak adhesive layer 6 does not have any adhesiveness to such an extent that a slide relative to the object is hindered.
- the weak adhesive layer 6 is formed in that way, when the display panel 3 is moved towards the holding member 1 , even in a case where the weak adhesive layer 6 and the display panel 3 (the surface 5 a to be attached in a case where the weak adhesive layer 6 is formed on the display panel 3 ) come into contact with each other, the display panel 3 can be moved smoothly without any problem. Then, by pressing the display panel 3 towards the surface 5 a to be attached after the display panel 3 has been moved as described below, it is possible to cause the weak adhesive layer 6 to develop the adhesiveness and to bring the weak adhesive layer 6 into close contact with the display panel 3 .
- a general pressure sensitive adhesive agent can be used for the adhesive agent which develops the adhesiveness by applying a pressure.
- a double-sided adhesive tape provided with a weak adhesive film formed of a pressure sensitive adhesive agent is used as the weak adhesive layer 6 .
- An adhesion strength between the weak adhesive layer 6 and either one of or both of the display panel 3 and the surface 5 a to be attached is, for example, 0.02 N/10 mm or more and 5.0 N/10 mm or less, and is preferably 1.5 N/10 mm or more and 2.0 N/10 mm or less. If the adhesion strength of this range is obtained, it is considered that the possibility that the display panel 3 is unintentionally separated from the surface 5 a to be attached is low. In addition, it is considered that when detaching the display panel 3 intentionally from the surface 5 a to be attached, the display panel 3 and the surface 5 a to be attached can be easily separated from each other merely by pulling the display panel 3 with an appropriate force.
- the display panel 3 in the display apparatus 10 of the present embodiment is held by the holding member 1 as well as being bonded with the weak adhesive layer 6 , so that the display panel 3 that is attached to the surface 5 a to be attached can be prevented from separating from the surface 5 a to be attached or significantly displaced on the surface 5 a to be attached during use. That is, in the present embodiment, it is not always necessary to fix the display panel 3 on the surface 5 a to be attached by using a bonding agent or the like. Meanwhile, the display panel 3 of the display apparatus 10 of the present embodiment can be easily detached from the surface 5 a to be attached.
- the display panel 3 can be reused by detached from the surface 5 a to be attached.
- the display panel 3 becomes inoperative, the display panel 3 can be easily replaced with another new display panel 3 . That is, in spite of the fact that a defect or malfunction merely occurs in either one of the display panel 3 and the arbitrary object 5 having the surface 5 a to be attached, it is possible to avoid discarding both of them.
- the display panel 3 can be easily detached, and the field of view of the front side is not shaded.
- the display panel 3 can be securely attached by replacing the weak adhesive layer 6 with another new one.
- FIG. 1A to FIG. 1C the display apparatus of the present embodiment will be described in further detail.
- the display panel 3 attached to the surface 5 a to be attached of the object 5 is shown together with the holding member 1 .
- the display apparatus 10 including at least the display panel 3 , the holding member 1 , and the object 5 having the surface 5 a to be attached is obtained.
- FIG. 1B shows a cross section taken along the line IB-IB shown in FIG. 1A
- FIG. 1C shows a cross section taken along the line IC-IC. As shown in FIG. 1A to FIG.
- the holding member 1 that is formed in the rod-like shape is bonded with the surface 5 a to be attached by using the bonding agent 8 .
- the holding member 1 which is attached on the bonding surface of the object 5 , includes: the groove 1 b into which a part of the peripheral edge of the display panel 3 can be inserted; and the convex portion 1 a described previously.
- the display panel 3 is provided with a plurality of pixels 31 arranged in a matrixed manner, and is held on the surface 5 a to be attached by way of the holding member 1 .
- the wiring board 9 is connected to the display panel 3 , and the wiring board 9 is drawn upward of the display panel 3 .
- the surface 5 a to be attached may be a plane surface as in the examples of FIG. 1A to FIG. 1C or may be a curved surface.
- the object 5 having the surface 5 a to be attached as one of surfaces thereof may be any member, any article, or any structure on which the display panel 3 can be attached on the one surface (surface 5 a to be attached).
- the object 5 can be formed using any material such as a glass, a metal, or a synthetic resin or the like. In a case where the display panel 3 has flexibility, it is preferable that the object 5 have rigidity sufficient to appropriately support the display panel 3 .
- the object 5 may be an armoring member referred to, for example, case, cover, or casing and having a predetermined rigidity to impart durability against external mechanical stress to the display panel 3 .
- a desired decoration may be applied, and the object 5 may have a shape suitable for a situation in which the display panel 3 is used. Therefore, a display apparatus provided with the display panel and the covering member and having a desired rigidity, decorativeness, and easiness of handling can be manufactured by attaching the display panel to the given plane surface or curved surface by using the method for attaching display panel according to the present embodiment.
- the object 5 may also be any member constituting various devices, apparatuses, tools or structures other than the display panel 3 or may be a part thereof.
- the object 5 may be a glass plate used in a household window, a show window, or an exhibition case or the like, and may be a member constituting the casings of various apparatuses or the interior or exterior walls of building.
- the object 5 may be a vehicle windshield, and the surface 5 a to be attached may be a surface of the vehicle windshield oriented to an interior of the vehicle.
- An arbitrary device or apparatus provided with a display panel can be manufactured by attaching the display panel to the given plane surface or the given curved surface by using the method for attaching display panel according to the present embodiment.
- FIG. 3A to FIG. 3D the method for attaching the display panel 3 of the display apparatus 10 shown in FIG. 1A will be described in detail.
- FIG. 3A to FIG. 3D similar constituent elements to those shown in FIG. 1A to FIG. 1C described previously are designated with same reference numerals as those of FIG. 1A or the like, and a duplicate description thereof is appropriately omitted.
- the holding member 1 in which the convex portion 1 a and the groove 1 b are formed is bonded, by the bonding agent 8 (refer to FIG. 1C ), with the surface 5 a to be attached of the object 5 , in a state in which the groove 1 b is faced up and a space capable of attaching the display panel 3 is ensured.
- the holding member 1 is bonded in a location to ensure the region A for attaching in which the display panel 3 (refer to FIG. 3B ) is to be mounted in the surface 5 a to be attached. That is, in the example shown in FIG. 3A , the holding member 1 is positioned so as to be taken along a lower end of the region A for attaching. For example, when the region A for attaching is rectangular (that is, the front shape of the display panel 3 is rectangular), outside a lower edge of the region A for attaching, the holding member 1 is positioned along one edge thereof.
- the display panel 3 can be attached in an arbitrary location in the surface 5 a to be attached that is one surface of the object 5 . Therefore, the holding member 1 can be bonded in an arbitrary location in the surface 5 a to be attached as well.
- the holding member 1 is bonded so that when the display panel 3 is mounted, an upper end of the display panel 3 is substantially proximal to a top surface (upper edge) of the object 5 .
- the object 5 is oriented in an arbitrary orientation relative to the gravitational direction when the display panel 3 is in use.
- the object 5 is provided in an orientation in which the gravity acts on the direction indicated by the arrow Y in the example of FIG. 3A .
- FIG. 3C is a side view of FIG. 3B and FIG. 3B
- a lower end of the display panel 3 is introduced so as to engage into the groove 1 b of the holding member 1 .
- the weak adhesive layer 6 is formed using the adhesive agent.
- the weak adhesive layer 6 may be provided, not on the surface 5 a to be attached, but on the surface of the display panel 3 facing to the surface 5 a to be attached, as indicated by the double-dotted chain line in FIG. 3C .
- the weak adhesive layer 6 is formed by arranging the weak adhesive sheet formed by shaping the adhesive agent in a predetermined shape, for example, on the surface 5 a to be attached or on the surface of the display panel 3 facing to the surface 5 a to be attached.
- the method for attaching the display panel of the present embodiment may further include providing a strong adhesive layer 7 having an adhesive force which is equal to or more than the adhesive force of the weak adhesive layer 6 between the weak adhesive layer 6 and the display panel 3 in addition to formation of the weak adhesive layer 6 .
- the strong adhesive layer 7 can be formed between the weak adhesive layer 6 and the surface 5 a to be attached. The strong adhesive layer 7 can come into close contact with the display panel 3 or the weak adhesive layer 6 at stronger adhesive strength than the adhesive strength between the weak adhesive layer 6 and the surface 5 a to be attached or the display panel 3 .
- the display panel 3 can be removed from the surface 5 a to be attached while the weak adhesive layer 6 is left on either desired one of the display panel 3 and the surface 5 a to be attached. Consequently, the work of detaching and replacing the display panel 3 may be easily carried out.
- Each of the adhesion strength between the strong adhesive layer 7 and the display panel 3 and the adhesion strength between the strong adhesive layer 7 and the surface 5 a to be attached is 2.5 N/10 mm or more and 20 N/10 mm or less for example, and is preferably 5.0 N/10 mm or more and 20 N/10 mm or less.
- the strong adhesive layer 7 can also be formed using a material including an acryl-based resin, silicone-based resin, or urethane-based resin as main component.
- the weak adhesive layer 6 and the strong adhesive layer 7 may be laminated via a film material made of polyethylene terephthalate or the like.
- the display panel 3 to be attached using the method for attaching the display panel of the present embodiment As the display panel 3 to be attached using the method for attaching the display panel of the present embodiment, as described above, an organic EL display panel or a liquid crystal display panel or the like is exemplified. However, the display panel 3 is not limited thereto.
- the wiring board 9 is connected to the display panel 3 by, for example, thermo-compression bonding using the ACF as described above.
- the wiring board 9 and the display panel 3 may be connected to each other using a connector not shown.
- a barrier film 33 (refer to FIG. 3C ) may be formed using a moisture impermeable material on the display surface 32 .
- the moisture impermeable material silicon nitride, silicon oxide, and silicon nitride oxide or the like is exemplified.
- barrier film 33 one of a silicon nitride film, a silicon oxide film, and a silicon nitride oxide film may be formed, or two or more of these films may be formed in a laminated state. Further, in addition to these films formed using an inorganic material, a barrier film 33 including an organic film formed using an epoxy resin or an acrylic resin may be formed.
- the film formed using an inorganic material such as a silicon nitride film can be formed using a PECVD technique or a sputtering technique or the like.
- An organic film can be formed using a printing technique employing an inkjet printer.
- the display panel 3 is inserted into the groove 1 b of the holding member 1 .
- the display panel 3 is attached so as to abut against the holding member 1 .
- the display panel 3 may be pressed towards the surface 5 a to be attached to thereby bring the display panel 3 and the surface 5 a to be attached into close contact via the weak adhesive layer 6 .
- the display panel 3 and the surface 5 a to be attached can be brought into close contact with each other via the weak adhesive layer 6 by carrying out such a step of pressing the display panel 3 .
- FIG. 3D shows an example of a case in which the display panel 3 is pressed with a pressing member 101 .
- the pressing member 101 may be moved from the vicinity of the holding member 1 towards the upper end part of the display panel 3 , when the display panel 3 is pressed towards the surface 5 a to be attached.
- the pressing member 101 is not limited in particular as long as it is possible to apply a pressure to the display panel 3 .
- a member capable of rolling such as a roller is preferable as the pressing member 101 from the viewpoint of reduction of a stress imparted to the display panel 3 .
- the display panel 3 includes a substrate 30 and a plurality of light emitting elements 34 formed on the substrate 30 .
- the substrate 30 a resin film formed using a polyimide resin or a glass plate is exemplified.
- a plurality of organic EL light emitting elements are formed in a matrix form.
- Each of the light emitting elements 34 has: a TFT (thin film transistor) 35 ; a first electrode 36 connected to the TFT 35 ; an organic layer 37 to emit light formed of an organic material vapor-deposited on the first electrode 36 ; and a second electrode 38 formed on the organic layer 37 .
- Each of the light emitting elements 34 is separated from other light emitting elements 34 by an insulation bank 39 formed using an insulation resin or SiO 2 or the like.
- the first electrode 36 and the insulation bank 39 are formed on a flattening layer 40 that covers the TFT 35 .
- the TFT 35 can be formed by forming a channel layer composed of polycrystalline silicon or the like, an insulation layer, and each electrode, which are formed through, for example, a step of forming a film by sputtering or the like, steps of exposure and development for photoresist, and a step of patterning by etching.
- a transparent amorphous oxide semiconductor such as an oxide of indium, gallium, and zinc may be used for the channel layer.
- the first electrode 36 is formed by forming a film and patterning using a conductive material having light transmission property such as an ITO layer.
- the insulation bank 39 is formed by forming a resin layer and patterning the resin layer, and within each division surrounded by the insulation bank 39 , the organic layer 37 is formed using a vacuum vapor deposition technique using a mask, or an inkjet technique or the like.
- the organic layer 37 is shown as a single layer in FIG. 4 , actually, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer or the like are formed in order by the vacuum vapor deposition technique or the like so that the organic layer 37 having a multilayered structure is formed.
- Each layer of the organic layer 37 can be formed using a known material.
- the second electrode 38 is formed to be sufficiently thinner than a light wavelength so as to have transparency by using a technique such as vacuum vaper deposition.
- the second electrode 38 is formed using, for example, a metal with a small work function such as an Mg—Ag alloy layer or aluminum or an alkaline metal or an alkaline earth metal.
- a protection layer 41 made of, for example, Si 3 N 4 is formed on a surface of the second electrode 38 .
- the barrier layer 33 (refer to FIG. 3C ) described above may be formed as the protection layer 41 .
- the cross-sectional structure shown in FIG. 4 is provided as a mere example, and the structure of the organic EL display panel constituting the display panel 3 and materials for each constituent element and forming method for the constituent element are not limited to the structures, the materials, and the forming method described herein.
- the display panel 3 includes: a first substrate formed using a very thin glass plate or the like; a second substrate having flexibility, which is disposed to be spaced from the first substrate; and a liquid crystal layer between the first and second substrates.
- the display panel 3 is provided with: a TFT formed on the first substrate; a pixel electrode connected to this TFT; and a first alignment film formed on the pixel electrode.
- the display panel 3 may be provided with: a color filter, a common electrode, and a second alignment film, all of which are provided in order on the second substrate.
- the liquid crystal layer is composed of a liquid crystal material filled between the first and second alignment films.
- a polarization film is provided on each of respective surfaces of the first substrate and the second substrate, which are opposite to the surfaces facing the liquid crystal layer.
- each electrode, alignment films, polarization films, and liquid crystal layer which constitute the liquid crystal display panel can be formed by any method including a well-known method. Therefore, a detailed description thereof is omitted.
- the display panel 3 formed of the organic EL display panel or the liquid crystal display panel is preferably manufactured simultaneously in plurality by using a substrate (for example, substrate 30 ) having a size in which a plurality of display panels 3 can be arrayed.
- a substrate for example, substrate 30
- the plurality of display panels 3 which are arranged on the substrate are divided by cutting the substrate and separated each other. At the time of the above cutting and separation, the concave portion 3 a or the like mentioned above can be formed.
- FIG. 5A there is shown an example of the display panel 3 attached to a windshield of a motor vehicle by the method for attaching the display panel of Embodiment 2.
- the display panel 3 of the present embodiment is attached to the windshield of the motor vehicle having the surface 5 a to be attached as a surface facing an interior of the vehicle. That is, the holding member 1 is bonded with the surface 5 a to be attached (the surface of the vehicle windshield facing interior of the vehicle), and the display panel 3 is held by the holding member 1 .
- 5A is a transparent organic EL display panel formed using a light transmissible material, and in a right side region of the display panel 3 , light emission in pixel 31 (refer to FIG. 1A ) is stopped. Thus, a front side scene, through the windshield, including such as signal S 1 and a various traffic signs S 2 is visible in the right side region of the display panel 3 . On the other hand, in a left side region of the display panel 3 , an image produced by a navigation system is displayed by driving the pixel 31 .
- the display panel 3 as in the example of FIG. 5A , may be capable of partially displaying an image on the display screen, or may be such a partial display.
- a vehicle windshield is often mounted on a vehicle so as to incline a top edge thereof to an interior of the vehicle.
- the operation of attaching the display panel 3 to a surface of such windshield which faces the interior of the vehicle is carried out in a face-up state, therefore, it is very difficult to accurately position the display panel 3 in a predetermined position in such a state. Further, in the operation in such a difficult situation, the display panel 3 may not be able to be attached in an accurate position at first try, and correction of the position or retrial of the operation of the attaching may be required. Thus, there is a risk that the display panel 3 is broken through the additional operations.
- the method for attaching display panel according to the present embodiment it is possible to attach the display panel 3 easily as well as accurately at the predetermined position even on the vehicle windshield.
- the holding member 1 is bonded in the vicinity of an upper edge of the windshield in front of a driver seat, the holding member 1 can be attached in any position on the windshield.
- a plurality of holding members 1 may be bonded to the windshield, and a plurality of display panels 3 may be attached.
- the holding member 1 is bonded to the windshield in a downward location of the display panel 3 in the gravitational direction at the time of normal use of the motor vehicle. Therefore, downward movement of the display panel 3 by the gravitational action can be restricted by the holding member 1 .
- the positional relationship is not limited to this.
- the wiring board 9 extends to a space between an upholstery of the ceiling part in the interior of the vehicle and a roof of the vehicle at the upper edge of the windshield.
- the wiring board 9 is inserted into a connector 21 disposed between the upholstery of the ceiling part and the roof of the vehicle.
- the connector 21 may be coupled to a driver (not shown) to supply a drive signal to the display panel 3 .
- the display panel 3 can be accurately attached at the predetermined position by using the method for attaching display panel 3 of the present embodiment, therefore, any excessiveness or shortage of the length of the wiring board from the display panel 3 to the connector 21 hardly occurs. Therefore, it is possible to reduce exposure of the wiring board 9 inside the interior of the vehicle.
- FIG. 5B there is shown additional steps to be carried out to obtain the form illustrated in FIG. 5A in a case where the display panel 3 is attached to the windshield of the motor vehicle by using the method for attaching the display panel of the present embodiment.
- the method for attaching the display panel to the windshield by using the method of the present embodiment may include the step of connecting the flexible wiring board 9 that is connected to the display panel 3 to the connector 21 that is disposed at the ceiling part of the vehicle of the motor vehicle, after the display panel 3 has been attached to the predetermined location. Afterwards, the interior member 24 that covers the connector 21 may be mounted to the ceiling part of the vehicle.
- the method for attaching the display panel to the windshield by using the method of the present embodiment may include the step of connecting the flexible wiring board 9 that is connected to the display panel 3 to the connector 21 that is disposed at the ceiling part of the vehicle of the motor vehicle, after the display panel 3 has been attached to the predetermined location.
- the interior member 24 that covers the connector 21 may be mounted to the ceiling part of the vehicle.
- the connector 21 provided with a lock lever 21 a is implemented on the substrate 22 on which a driver (not shown) to supply a drive signal to the display panel 3 has been implemented.
- the connector 21 is disposed in the predetermined location in a space secured between the roof 23 and the interior member 24 in the ceiling part of the vehicle.
- an upper end of a surface (surface 5 a to be attached) facing to the interior of the vehicle of a windshield (object 5 ) is bonded with the bonding agent 26 .
- Reference numeral 25 designates a sound insulation member disposed between the roof 23 and the interior member 24 .
- the holding member 1 was located at the lower end of the display panel 3
- the location of the holding member 1 is not limited to the lower end of the display panel 3 .
- the holding member 1 may be disposed at a side edge or an upper edge of the display panel 3 . This is because the display panel 3 is bonded with the object 5 by way of the weak adhesive layer 6 .
- the display panel 3 can be supported by the concave portion and the convex portion to a certain extent.
- the holding member 1 is provided at an upper part of the display panel 3 , a part of the display panel 3 is inserted into the groove 1 b of the holding member 1 and thus is also supported by the holding member 1 to a certain extent.
- FIG. 6A is a plan view showing a state in which at an upper edge of the windshield (object 5 ) of the motor vehicle, for example the holding member 1 is bonded in which the groove 1 b is located so as to be oriented downward, and the display panel 3 is provided so as to be inserted into the groove of the holding member 1
- FIG. 6B shows a sectional view after attachment
- Each component is the same as the example described above, and the same portions are designated with the same reference numerals and description thereof is omitted.
- the concave portion 3 a (or the convex portion) of the display panel 3 is, of course, formed at the upper edge of the display panel 3 .
- this holding member is hardly conspicuous.
- the display panel 3 is removed when not in use, and the scene of the front side can be thereby observed without any feeling of any sense of discomfort.
- the scene of the front side can be observed even if display panel 3 is not detached.
- a display apparatus comprises: an object having a plane or curved surface; a display panel having at least one of a concave portion and a convex portion at any part of peripheral edge; a holding member mounted on a predetermined location of the object, the holding member having a convex portion or a concave portion corresponding to and engaging with the concave portion or the convex portion of the display panel; and a weak adhesive layer interposed between the object and the display panel to bring the object and the display panel into close contact with each other.
- a concave portion and a convex portion which are formed in the holding member and the display panel so as to be capable of engaging each other, so that a position or a direction of attachment of the display panel is specified by the holding member.
- the holding member can be made very small, and even if the holding member is mounted to a window glass or a windshield of a motor vehicle or the like, any sense of discomfort is not felt.
- the holding member is attached by the weak adhesive layer, so that the holding member can be easily released, and in a case where the display panel is not in use, the display panel can be detached, and the holding member is left in place as it is, and the display panel can be thereby attached in a case where the display panel is in use as well.
- the holding member has a length of 1/12 or more and 1 ⁇ 3 or less of a length of an outer peripheral edge of the display panel, and is formed of a transmissible material, whereby any sense of discomfort is not felt while the display panel is held in an accurate location and direction because the holding member is very small.
- the holding member is divided into a plurality of sections, and a length of each section of the plurality of sections of the holding member has a length of 1/50 or more and 1/12 or less of a length of an outer peripheral edge of the display panel.
- a method for attaching a display panel of a second embodiment of the present disclosure comprises: preparing a display panel having at least one of a concave portion and a convex portion at any part of a peripheral edge; preparing a holding member having a convex portion or a concave portion corresponding to the concave portion or the convex portion of the display panel; bonding the holding member to an object having a predetermined plane or curved face; providing a weak adhesive layer, using an adhesive agent, on an attachment region of the object with the display panel, or a surface facing to the object in the display panel; and combining the display panel to the holding member while engaging the concave portion or the convex portion of the display panel with the convex portion or the concave portion of the holding member, and bringing the display panel into close contact with the object with the weak adhesive layer.
- a concave portion and a convex portion are formed in the holding member and the display panel so as to be capable of engaging each other, and thus even by a very short holding member, the display panel can be accurately mounted to the holding member.
- the holding member is aligned without attaching the display panel and then only the holding member can be bonded to the object and thus it is not need to peel off the display panel for reason that the bonded location of the display panel is inappropriate, and the display panel can be attached very accurately and efficiently in a predetermined location and a predetermined orientation.
- a groove capable of inserting a lower end of the display panel is formed in the holding member, and the lower end of the display panel is inserted into the groove, whereby even by way of a short holding member, the display panel can be strongly held, and the holding member can be provided at a side or an upper part of the display panel.
- the holding member is formed of a light transmissible member
- the display panel is an organic EL display panel formed on a light transmissible substrate, whereby even if the holding member or the display panel is left, the scene of the front side can be observed.
- the weak adhesive layer is formed of using an adhesive agent that develops adhesiveness by applying a pressure, whereby when a display panel is attached, the display panel is engaged with a holding member without being bonded with the object and thereafter it is able to attached by applying the pressure.
- the holding member is bonded at a vicinity of an outer edge of the object and along the outer edge of the object, because the holding member is almost conspicuous and any sense of discomfort is not felt by detaching a display panel, even when the display panel is attached to a window glass or a windshield of a motor vehicle.
Abstract
Description
- This patent application is a continuation application of co-pending U.S. application Ser. No. 16/062,104, having a filing/§ 371(c) date of Dec. 19, 2018, which is a U.S. National Stage of co-pending PCT/JP2017/046190, having an international filing date of Dec. 22, 2017. The entire disclosure of each patent application set forth in this CROSS-REFERENCE TO RELATED APPLICATIONS section is hereby incorporated by reference.
- The present invention relates to a display apparatus and a method for attaching a display panel.
- In recent years, with a request for thickness reduction relative to a liquid crystal display apparatuses, an organic EL display apparatuses or the like and an extended application relative to these flat display apparatuses, the spread of thin and preferably flexible display panels has been accelerated. In many cases, thin display panels are used to be bonded with an arbitrary supporting member in order to impart shape maintainability and mechanical strength or according to a specific circumstance in each situation of use. For example, in
Patent Document 1, there is disclosed a method for bonding an image display panel such as a liquid crystal display panel with a window glass used for digital signage. In the method disclosed inPatent Document 1, an image display panel disposed to be spaced from the window glass via an elastic member or the like is pressed towards the window glass while being elastically deformed by rolling of a roller from one end to the other end thereof. Consequently, the image display panel and the window glass are bonded with each other via a layer including a photocurable resin. -
- Patent Document 1: JP 2016-97650 A
- In
Patent Document 1, a display panel which is bonded with the supporting member by using an bonding agent composed of a photocurable resin or a thermosetting resin or the like, therefore it is very difficult to remove, from a supporting member. Even if the display panel could be detached, the debris of the bonding agent or the wreckage of the display panel or the supporting member remains on the respective bonding faces and thus the display panel or the supporting member cannot be easily reused. Therefore, in spite of the fact that a defect merely occurs to one of the display panel and the supporting member, it may be inevitable to discard or replace of both of them with the replacement ones. It is also difficult to accurately bond the display panel in a predetermined location when the display panel is bonded with the supporting member. In addition, there is a risk that a breakage of the display panel occurs if movement or rearrangement of the display panel is repeated to position in a proper position, the display panel temporarily disposed in an inappropriate position. Further, there is a problem that in a case where the supporting member is a transparent member such as a windshield of a motor vehicle or a window glass, when the display panel attached to the supporting member is not observed, the field of view is shaded, whereby the display panel becomes an obstacle. - Therefore, an object of the present invention is to provide a method for attaching a display panel which is capable of easily attaching the display panel in a predetermined location on a predetermined plane or curved surface and thereafter capable of easily removing the display panel from the mounted surface as required, and a display apparatus in which a display panel is attached to a transparent supporting member and in which even in a case where the display panel is not observed, a field of view is not degraded.
- A display apparatus according to
Embodiment 1 of the present invention comprises: an object having a plane or a curved face; a display panel having at least one of a concave portion and a convex portion at any part of a peripheral edge; a holding member mounted on a predetermined location of the object, the holding member having a convex portion or a concave portion corresponding and engaging with the concave portion or the convex portion of the display panel; and a weak adhesive layer being interposed between the object and the display panel to bring the object and the display panel into close contact with each other. - A method for attaching a display apparatus of Embodiment 2 of the present invention comprises: preparing a display panel having at least one of a concave portion and a convex portion at any part of a peripheral edge; preparing a holding member having a convex portion or a concave portion corresponding to the concave portion or the convex portion of the display panel; bonding the holding member with an object having a predetermined plane or curved face; forming a weak adhesive layer, using an adhesive agent, on an attachment region of the object with the display panel, or a surface facing to the object in the display panel; combining the display panel to the holding member while engaging the concave portion or the convex portion of the display panel with the convex portion or the concave portion of the holding member; and bringing the display panel into close contact with the object by using the weak adhesive layer.
- According to the embodiments of the present invention, a holding member capable of engaging with a display panel is attached in a normal position on a predetermined plane or curved surface and then the display panel can be mounted, so that the display panel can be easily aligned and mounted. Moreover, the display panel is attached by a weak adhesive layer and thus the display panel can be thereafter easily removed from the mounted surface in accordance with the requirement. In addition, the holding member can be made very small because it is sufficient if a concave portion or a convex portion which corresponds to a convex portion or a concave portion of the display panel is formed. And when the holding member is made of a transparent material, it makes more inconspicuous. Consequently, even if the display panel is mounted to a transparent glass such as a window glass or a vehicle windshield of a motor vehicle or the like and then is demounted when the display panel is not in use, the holding member is very unlikely to become an obstacle to a field of view, and a sense of discomfort is not felt.
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FIG. 1A is a plan view showing a display apparatus ofEmbodiment 1 of the present invention. -
FIG. 1B is a sectional view taken along the line IB-IB ofFIG. 1A . -
FIG. 1C is a sectional view taken along the line IC-IC ofFIG. 1A . -
FIG. 2A is a view illustrating another example of the display apparatus ofFIG. 1A . -
FIG. 2B is a view illustrating another example of the display apparatus ofFIG. 1A . -
FIG. 2C is a view illustrating a still another example of the display apparatus ofFIG. 1A . -
FIG. 2D is a view illustrating a still another example of the display apparatus ofFIG. 1A . -
FIG. 3A is a view illustrating a method for mounting a display panel by using a holding member. -
FIG. 3B is a view illustrating the method for mounting the display panel by using the holding member. -
FIG. 3C is a side view ofFIG. 3B . -
FIG. 3D is a view illustrating the method for mounting the display panel by using the holding member. -
FIG. 4 is a structural example of essential parts of an organic EL display panel used as a display panel. -
FIG. 5A is a view showing an example of a case in which the display apparatus ofFIG. 1A is mounted to a windshield of a motor vehicle. -
FIG. 5B is a view of partial steps of a method for mounting a display panel to the windshield of the motor vehicle. -
FIG. 6A is a view illustrating a mounting method in an example of a case in which the holding member is mounted to an outer edge of an object to which the display panel is to be mounted. -
FIG. 6B is a sectional side view in a state in which the display panel is mounted in the example ofFIG. 6A . - Next, embodiments of a method for attaching a display panel and a method for attaching the display panel to a vehicle windshield of a motor vehicle and a display apparatus thus mounted, of the present invention, will be described with reference to the drawings. Materials, shapes and sizes of the constituent elements, and their relative positions or the like in the embodiments described below are merely illustrative. The method for attaching display panel and the display apparatus of the present invention are not construed to be limitative thereto.
- A display apparatus of
Embodiment 1 of the present invention, as a plan view and sectional views thereof are shown inFIG. 1A toFIG. 1C , includes: anobject 5 having a plane or a curved surface; adisplay panel 3 having at least one of aconcave portion 3 a and a convex portion at any part of a peripheral edge; a holdingmember 1 attached on a predetermined location of theobject 5 and having aconvex portion 1 a or a concave portion corresponding to and engaging with aconcave portion 3 a or a convex portion of thedisplay panel 3, and a weakadhesive layer 6 interposed between theobject 5 and thedisplay panel 3 to bring theobject 5 and thedisplay panel 3 into close contact with each other. - Although in the example shown in
FIG. 1A , theconcave portion 3 a is formed in a planar direction of thedisplay panel 3, and theconvex portion 1 a is formed in a planar direction of the holdingmember 1, a convex portion may be formed in thedisplay panel 3, and a concave portion may be formed in the holdingmember 1. However, it is preferable that theconcave portion 3 a is formed in thedisplay panel 3 because it is easier to prevent damage during handling of thedisplay panel 3 since there is no convex portion in thedisplay panel 3. In addition, a direction of the concave portion and the convex portion is not limited to the planar direction as shown inFIG. 1A , and as shown inFIG. 3D which will be described later, the direction of the concave portion and the convex portion may be formed in a vertical direction to a surface of thedisplay panel 3. - That is, as described previously, if the
display panel 3 is directly attached to theobject 5, thedisplay panel 3 may be attached to be inclined (rotated) or may be attached in a location which is displaced from an expected location. In such a case, if an attempt is made to reattach the display panel, a bonding agent or the like may remain on theobject 5, or alternatively, thedisplay panel 3 may be damaged. Further, in a case where thedisplay panel 3 is attached to a windshield of a motor vehicle or a window glass, as theobject 5, if thedisplay panel 3 is not observed, the display panel may become an obstacle, and however, it has been conventionally difficult to easily release or reattach the display panel. - Accordingly, in the present embodiment, there is provided a structure in which the holding
member 1 is attached to theobject 5 so that thedisplay panel 3 is attached in a predetermined location of theobject 5 and in a easily detachable manner, and thedisplay panel 3 is engaged with the holdingmember 1. That is, a display apparatus as shown inFIG. 1A toFIG. 1C is obtained by carrying out positioning as to thedisplay panel 3 free of the weak adhesive layer 6 (a dummy sample having its adjusted external shape is also available) and the holdingmember 1, firstly attaching the holdingmember 1 to theobject 5 and thereafter providing the weakadhesive layer 6 on an attachment surface of thedisplay panel 3 or in a region in which thedisplay panel 3 of theobject 5 is to be attached and subsequently attaching thedisplay panel 3. - A fluorine resin such as PTFE, a polyacetal resin, or a polyamide resin or the like may be used for example, in the holding
member 1. However, in view of the function of restraining the dislocation of thedisplay panel 3 when in use, a silicone resin, a natural, synthetic rubber or the like which have an appropriate frictional coefficient may be used as a material for the holdingmember 1. In addition, the holdingmember 1 may be formed using a light transmissible material unlikely to be recognized for a user of thedisplay panel 3. To use the light transmissible material is particularly useful in a case where theobject 5 having asurface 5 a to be attached is formed of the light transmissible material (such as a glass, transparent polyimide, PET or the like) and further thedisplay panel 3 has light transmissibility. In this respect, it is preferable that the holdingmember 1 is formed using a transparent silicone-based rubber, an acryl-based resin or the like, and the holdingmember 1 may be formed using a glass. When the holdingmember 1 is formed of a light transmissible material, it can be unlikely to become an obstacle to a field of view. - In the holding
member 1, there is formed theconvex portion 1 a or the concave portion capable of engaging with theconcave portion 3 a or the convex portion that are formed at an outer peripheral edge of thedisplay panel 3 which will be described later. Theconvex portion 1 a is formed to certainly carry out positioning between thedisplay panel 3 and the holdingmember 1 with eliminating displacement in the side way of thedisplay panel 3, or misaligned or rotated attachment of thedisplay panel 3 in the case where the external shape of thedisplay panel 3 is a rotatable shape such as a circular shape, as shown inFIG. 2A which will be described later. Therefore, it is sufficient that theconvex portion 1 a is capable of engaging with theconcave portion 3 a of thedisplay panel 3. It is also sufficient that the engagement between theconvex portion 1 a and theconcave portion 3 a and there may be a slight gap. - The holding
member 1, as shown inFIG. 1A , functions as a supporting member of thedisplay panel 3 as well as positioning of thedisplay panel 3, when the holdingmember 1 is a structure to be engaged at a lower side of thedisplay panel 3. In addition, as shown inFIG. 1C , agroove 1 b into which a lower part of thedisplay panel 3 can be inserted is formed. A depth of thegroove 1 b is of the order of 1 to 2 mm. Thegroove 1 b is not limited to a case in which the holdingmember 1 is provided at the lower part of thedisplay panel 3, and even in a case where the holdingmember 1 is provided at an upper part of thedisplay panel 3, as shown inFIG. 6A andFIG. 6B , thegroove 1 b contributes significantly to support thedisplay panel 3, which will be described later. - The holding
member 1 may be formed with one piece (section) or may be attached to be divided into a plurality ofpieces FIG. 2D . That is, the holdingmember 1 may be formed with a section having an engaging portion of the concave portion or the convex portion, and another section having no engaging portion of concave portion or the convex portion intended to merely hold thedisplay panel 3. If the holding member is divided into a plurality of sections, a length of each section can be reduced, the holding member is made inconspicuous, and an effect of holding thedisplay panel 3 increases. In a case where the holding member is formed with one section, the more significantly a length L of the holdingmember 1 increases, the more easily thedisplay panel 3 is supported. This is preferable. However, in a case where theobject 5 to which thedisplay panel 3 is to be attached is capable of observing a scene of the front side, as windshield of a motor vehicle or a window glass of building for example, the shorter the holdingmember 1 is, the further preferable it is, in view of the fact that thedisplay panel 3 becomes an obstacle to a field of view when not in use. In this point of view, it is preferable that the length L of the holdingmember 1 is 1/12 or more and ⅓ or less of a full length of the outer peripheral edge of the display panel 3 (the full length means a length presupposing that no concave portion and convex portion are formed at the outer peripheral edge), and it is further preferable that the above length is ¼ or less thereof. In a case where the holding member is divided into a plurality of sections, it is preferable that a length of each section is 1/50 or more and 1/12 or less of a total length of an outer peripheral edge of thedisplay panel 3. In a case where the holding member is divided into the plurality of sections, the entirety of the plurality of sections is aligned to the external shape of the engaging part of thedisplay panel 3, and, in a case where the holding member is formed with one section, the single section is formed to be aligned thereto. That is, in the example shown inFIG. 1A , the engaging part is planar in shape, and in the examples shown inFIG. 2A andFIG. 2B , the engaging part is formed in a curved shape. - The holding
member 1 is bonded with thesurface 5 a to be attached of theobject 5 after the positioning with considering the position of thedisplay panel 3. Although a means for bonding the holdingmember 1 with thesurface 5 a to be attached of theobject 5 is not limited in particular, for example, the holdingmember 1 is bonded with thesurface 5 a to be attached by using the bonding agent 8 (refer toFIG. 1C ). If necessary, heating processing is carried out in order to cure thebonding agent 8. Thebonding agent 8 may be applied to either one of or both of a bonding surface of the holdingmember 1 and thesurface 5 a to be attached or the bonding agent which is formed in a frame-shaped sheet, may be placed between the holdingmember 1 and thesurface 5 a of the object 5 (refer toFIG. 1 ). - The
bonding agent 8 is not particularly limited as long as it is possible to develop the bonding strength capable of stably bonding the holdingmember 1 with thesurface 5 a to be attached of theobject 5. An arbitrary epoxy-based bonding agent or acryl-based bonding agent can be used as thebonding agent 8. Preferably, thebonding agent 8 that is light transmissible is used to bond the holdingmember 1. As described previously, in a case where the holdingmember 1 is formed using a light transmissible material, it is particularly preferable to use thebonding agent 8 that is light transmissible. For example, any bonding agent which is called OCA (Optical Clear Adhesive) or OCR (Optical Clear Resin) such as film-like or paste-like acryl-based, silicone-based, or urethane-based bonding agent, can be used as thebonding agent 8. The bonding strength between the holdingmember 1 and thesurface 5 a to be attached that is obtained by thebonding agent 8 is larger than 5.0 N/10 mm and 10 N/10 mm or less, for example. - As the
display panel 3, an organic EL display panel or a liquid crystal display panel is exemplified. However, thedisplay panel 3 is not limited thereto. Thedisplay panel 3 is provided with a plurality ofpixels 31 which are arranged in a matrixed manner. In addition, a display apparatus of the present embodiment may be formed using thedisplay panel 3 having flexibility, and thedisplay panel 3 formed of a material having light transmissibility such as a transparent organic EL display panel may be used. This is because in a case where theabovementioned object 5 is the windshield of the motor vehicle or the window glass, the scene of the front side is easily visually recognized, and even if thesurface 5 a to be attached is the curved surface, the display panel can be easily attached thereto. As long as thedisplay panel 3 is light transmissible, in a case where thedisplay panel 3 is not in use, the scene of the front side can be observed even if thedisplay panel 3 is detached. - At the outer peripheral edge of the
display panel 3, there is formed theconcave portion 3 a or a convex portion which corresponds to the convex portion or the concave portion of the holdingmember 1 described previously. In a case where a convex portion is formed at the engaging part of the holdingmember 1, theconcave portion 3 a is formed at the corresponding outer peripheral edge of thedisplay panel 3. In a case where a substrate of thedisplay panel 3 is formed of a resin film such as polyimide, when an outer peripheral edge of the substrate is cut by laser light or the like, theconcave portion 3 a or the convex portion can be formed at a part to be engaged with the holdingmember 1 at the outer peripheral edge. In a case where the substrate of thedisplay panel 3 is made of a glass, an accessory which is designed so as to extend the convex portion in a horizontal direction may be attached. Even when a case where the convex portion is formed in a vertical direction of thedisplay panel 3, a projective piece can be attached. In a case where the substrate of thedisplay panel 3 is made of the glass, theconcave portion 3 a can be formed by the laser light or the like after the substrate has been cut in a rectangular shape. It is further preferable that theconcave portion 3 a is formed on thedisplay panel 3 because the engaging part is unlikely to damage at the time of conveyance or mounting. - The external shape of the
display panel 3 is not limited to the rectangular shape shown inFIG. 1A . As a circular shape shown inFIG. 2A for example, the external shape may be one having a curved part at the outer edge. In this case, the holdingmember 1 described above is also formed in a curved shape which corresponds to the external shape of thedisplay panel 3. Even if the external shape of thedisplay panel 3 is the curved shape, as shown inFIG. 2A , theconcave portion 3 a is formed at the outer peripheral edge. In a case where an engaging part with the holdingmember 1 is thus circular in shape, even if thedisplay panel 3 rotates in particular, thedisplay panel 3 is likely to get into the correct portion and thus theconcave portion 3 a exerts its own effectiveness. That is, even if the external shape of thedisplay panel 3 is a circular shape, there are many cases in which a top and bottom relationship such as clock display or image display is essential. An image of thedisplay panel 3 is hardly observed if thedisplay panel 3 is attached in rotated state. Thus, in the present embodiment, in order to clarify the top and bottom thereof, theconcave portion 3 a is formed at a lower edge of thedisplay panel 3 for example, and theconvex portion 1 a is formed at the holdingmember 1 that corresponds thereto, and the top and bottom relationship of thedisplay panel 3 is thereby accurately secured. Of course, formation of the concave portion or convex portion of thedisplay panel 3 corresponds to the location of the holdingmember 1 in accordance with the mounting location of the holdingmember 1. - Although the
concave portions 3 a may be present in plurality, if the plurality of concave portions are formed at equal intervals as in a gear for example, that is not preferable because the positioning for rotation cannot be obtained. Thus, in a case where theconcave portions 3 a are formed in plurality, it is preferable that the intervals be different from each other. However, as long as a single concave portion is present, such positioning can be obtained and thus a fewer number of such concave portions are preferable in terms of the manufacturing steps. Thegroove 1 b that is formed in the holdingmember 1 is also formed along an external arc of thedisplay panel 3. - The external shape of the
display panel 3 is not limited to such a circular shape, and as shown inFIG. 2B , a part thereof may be formed in an arc shape, and the remaining part thereof may be formed in a linear shape. In addition, a curved part may be formed in another curved shape such as an elliptical shape without being limited to an arc shape of a perfect circle. It is sufficient that the holdingmember 1 is formed in a shape corresponds to the external shape of thedisplay panel 3 is formed. In addition, even if thedisplay panel 3 has an external shape as shown inFIG. 2B , the curved part does not need to be held by the holdingmember 1, and he holdingmember 1 may be a structure intended to hold the linear shape part of thedisplay panel 3. That is, holding of thedisplay panel 3 by the holdingmember 1 may be achieved at a side part or an upper part of thedisplay panel 3 without being limited to a lower part of thedisplay panel 3. In this case, there is no problem because the display panel is bonded with theobject 5 by way of the weakadhesive layer 6. - Further, as described previously, the concave portion and the convex portion may be formed in the vertical direction with respect to a surface of the
display panel 3 in place of being formed in the horizontal direction thereof. The example is illustrated inFIG. 2C which shows a state before the holdingmember 1 and thedisplay panel 3 are engaged with each other. That is, aconvex portion 3 c is formed in such a manner as to project from the surface of thedisplay panel 3, and in the holdingmember 1, theconcave portion 1 c engaging with theconvex portion 3 c is formed. Such a kind of concave portion and convex portion may be present. A reversed relationship between the concave portion and the convex portion may also be established. - In addition, as shown in
FIG. 1A , thewiring board 9 is connected to thedisplay panel 3. Thewiring board 9 electrically connects a driver (not shown) which supplies a drive signal to thedisplay panel 3 and thedisplay panel 3 to each other. Examples of thewiring board 9 include a flexible printed circuit (FPC) having a flexible film formed of a resin such as polyimide or polyethylene terephthalate and a wiring pattern formed on the flexible film using a conductor such as copper. Thewiring board 9 is connected to thedisplay panel 3 at one end of thewiring board 9. Such one end of thewiring board 9 is connected, using an anisotropic conductive film (ACF), to a connection pad (not shown) provided on adisplay surface 32 of thedisplay panel 3. In place of thewiring board 9, a plurality of cables may be used and one ends of such cables may be connected to thedisplay panel 3. - The weak
adhesive layer 6 is interposed between thedisplay panel 3 and thesurface 5 a to be attached. Owing to the adhesiveness that the weakadhesive layer 6 has, preferably in a substantially gapless state, thedisplay panel 3 and thesurface 5 a to be attached are brought into close contact with each other. - The weak
adhesive layer 6 is composed of an adhesive agent consisting essentially of an acryl-based resin, a silicone-based resin, or a urethane-based resin, for example, solely or in combination of a plurality of these resins. The term “weak adhesive” refers to the adhesion to an extent enough to adhere to an adhesion object tightly and yet to be released easily from the adhesion object when subjected to a force in a releasing direction without causing any damage to the adhesion object or leaving any glue on the adhesion surface. By forming the weakadhesive layer 6, thedisplay panel 3 and thesurface 5 a to be attached of theobject 5 are substantially securely brought into close contact with each other. Therefore, it is possible to inhibit floating of thedisplay panel 3 and generating air bubbles with an interface between thedisplay panel 3 and thesurface 5 a to be attached or the like. Moreover, thedisplay panel 3 can be easily removed as required without having excessive damage to thedisplay panel 3 or theobject 5. - The acryl-based resin has superior weather resistance and heat resistance and moreover has superior transparency. In a case where the
display panel 3 is a transparent organic EL display panel and thedisplay panel 3 is attached to an arbitrarytransparent object 5, the weakadhesive layer 6 with high transparency is preferable in view that the layer hardly influences transparency. The silicone-based resin also has superior weather resistance and transparency and further has superior heat resistance in particular, and hardly changes to yellow and thus is preferable as a material for the weakadhesive layer 6. - In addition, the weak
adhesive layer 6 is preferably formed using an adhesive agent which does not have adhesiveness under a normal pressure but develops adhesiveness by being pressurized. Here, the expression “does not have adhesiveness” means that in a state where an exposed surface of the weakadhesive layer 6 formed on thesurface 5 a to be attached or on thedisplay panel 3 and the object around the exposed surface come into contact with each other, the weakadhesive layer 6 does not have any adhesiveness to such an extent that a slide relative to the object is hindered. If the weakadhesive layer 6 is formed in that way, when thedisplay panel 3 is moved towards the holdingmember 1, even in a case where the weakadhesive layer 6 and the display panel 3 (thesurface 5 a to be attached in a case where the weakadhesive layer 6 is formed on the display panel 3) come into contact with each other, thedisplay panel 3 can be moved smoothly without any problem. Then, by pressing thedisplay panel 3 towards thesurface 5 a to be attached after thedisplay panel 3 has been moved as described below, it is possible to cause the weakadhesive layer 6 to develop the adhesiveness and to bring the weakadhesive layer 6 into close contact with thedisplay panel 3. A general pressure sensitive adhesive agent can be used for the adhesive agent which develops the adhesiveness by applying a pressure. For example, a double-sided adhesive tape provided with a weak adhesive film formed of a pressure sensitive adhesive agent is used as the weakadhesive layer 6. - An adhesion strength between the weak
adhesive layer 6 and either one of or both of thedisplay panel 3 and thesurface 5 a to be attached is, for example, 0.02 N/10 mm or more and 5.0 N/10 mm or less, and is preferably 1.5 N/10 mm or more and 2.0 N/10 mm or less. If the adhesion strength of this range is obtained, it is considered that the possibility that thedisplay panel 3 is unintentionally separated from thesurface 5 a to be attached is low. In addition, it is considered that when detaching thedisplay panel 3 intentionally from thesurface 5 a to be attached, thedisplay panel 3 and thesurface 5 a to be attached can be easily separated from each other merely by pulling thedisplay panel 3 with an appropriate force. - Thus, the
display panel 3 in thedisplay apparatus 10 of the present embodiment is held by the holdingmember 1 as well as being bonded with the weakadhesive layer 6, so that thedisplay panel 3 that is attached to thesurface 5 a to be attached can be prevented from separating from thesurface 5 a to be attached or significantly displaced on thesurface 5 a to be attached during use. That is, in the present embodiment, it is not always necessary to fix thedisplay panel 3 on thesurface 5 a to be attached by using a bonding agent or the like. Meanwhile, thedisplay panel 3 of thedisplay apparatus 10 of the present embodiment can be easily detached from thesurface 5 a to be attached. Consequently, in a case where thesurface 5 a to be attached is a surface of a window glass, when the window glass breaks, thedisplay panel 3 can be reused by detached from thesurface 5 a to be attached. Alternatively, when thedisplay panel 3 becomes inoperative, thedisplay panel 3 can be easily replaced with anothernew display panel 3. That is, in spite of the fact that a defect or malfunction merely occurs in either one of thedisplay panel 3 and thearbitrary object 5 having thesurface 5 a to be attached, it is possible to avoid discarding both of them. - In addition, for example, even when the
display panel 3 is bonded with the windshield of the motor vehicle or the window glass described previously, in a case where thedisplay panel 3 is not in use, thedisplay panel 3 can be easily detached, and the field of view of the front side is not shaded. In a case where a bonding force weakens owing to repetition of attaching and detaching activity, thedisplay panel 3 can be securely attached by replacing the weakadhesive layer 6 with another new one. - Referring to
FIG. 1A toFIG. 1C , the display apparatus of the present embodiment will be described in further detail. InFIG. 1A toFIG. 1C , thedisplay panel 3 attached to thesurface 5 a to be attached of theobject 5 is shown together with the holdingmember 1. By attaching thedisplay panel 3 is attached to thesurface 5 a to be attached, thedisplay apparatus 10 including at least thedisplay panel 3, the holdingmember 1, and theobject 5 having thesurface 5 a to be attached is obtained.FIG. 1B shows a cross section taken along the line IB-IB shown inFIG. 1A , andFIG. 1C shows a cross section taken along the line IC-IC. As shown inFIG. 1A toFIG. 1C , the holdingmember 1 that is formed in the rod-like shape is bonded with thesurface 5 a to be attached by using thebonding agent 8. The holdingmember 1, which is attached on the bonding surface of theobject 5, includes: thegroove 1 b into which a part of the peripheral edge of thedisplay panel 3 can be inserted; and theconvex portion 1 a described previously. Thedisplay panel 3 is provided with a plurality ofpixels 31 arranged in a matrixed manner, and is held on thesurface 5 a to be attached by way of the holdingmember 1. Thewiring board 9 is connected to thedisplay panel 3, and thewiring board 9 is drawn upward of thedisplay panel 3. - The
surface 5 a to be attached, as described previously, may be a plane surface as in the examples ofFIG. 1A toFIG. 1C or may be a curved surface. Theobject 5 having thesurface 5 a to be attached as one of surfaces thereof may be any member, any article, or any structure on which thedisplay panel 3 can be attached on the one surface (surface 5 a to be attached). Theobject 5 can be formed using any material such as a glass, a metal, or a synthetic resin or the like. In a case where thedisplay panel 3 has flexibility, it is preferable that theobject 5 have rigidity sufficient to appropriately support thedisplay panel 3. That is, theobject 5 may be an armoring member referred to, for example, case, cover, or casing and having a predetermined rigidity to impart durability against external mechanical stress to thedisplay panel 3. In addition, on the surface (mainly the surface other than thesurface 5 a to be attached) of theobject 5, a desired decoration may be applied, and theobject 5 may have a shape suitable for a situation in which thedisplay panel 3 is used. Therefore, a display apparatus provided with the display panel and the covering member and having a desired rigidity, decorativeness, and easiness of handling can be manufactured by attaching the display panel to the given plane surface or curved surface by using the method for attaching display panel according to the present embodiment. Further, theobject 5 may also be any member constituting various devices, apparatuses, tools or structures other than thedisplay panel 3 or may be a part thereof. For example, theobject 5 may be a glass plate used in a household window, a show window, or an exhibition case or the like, and may be a member constituting the casings of various apparatuses or the interior or exterior walls of building. - Furthermore, the
object 5 may be a vehicle windshield, and thesurface 5 a to be attached may be a surface of the vehicle windshield oriented to an interior of the vehicle. An arbitrary device or apparatus provided with a display panel can be manufactured by attaching the display panel to the given plane surface or the given curved surface by using the method for attaching display panel according to the present embodiment. - Next, referring to
FIG. 3A toFIG. 3D , the method for attaching thedisplay panel 3 of thedisplay apparatus 10 shown inFIG. 1A will be described in detail. InFIG. 3A toFIG. 3D , similar constituent elements to those shown inFIG. 1A toFIG. 1C described previously are designated with same reference numerals as those ofFIG. 1A or the like, and a duplicate description thereof is appropriately omitted. - As shown in
FIG. 3A , the holdingmember 1 in which theconvex portion 1 a and thegroove 1 b are formed is bonded, by the bonding agent 8 (refer toFIG. 1C ), with thesurface 5 a to be attached of theobject 5, in a state in which thegroove 1 b is faced up and a space capable of attaching thedisplay panel 3 is ensured. - The holding
member 1 is bonded in a location to ensure the region A for attaching in which the display panel 3 (refer toFIG. 3B ) is to be mounted in thesurface 5 a to be attached. That is, in the example shown inFIG. 3A , the holdingmember 1 is positioned so as to be taken along a lower end of the region A for attaching. For example, when the region A for attaching is rectangular (that is, the front shape of thedisplay panel 3 is rectangular), outside a lower edge of the region A for attaching, the holdingmember 1 is positioned along one edge thereof. Thedisplay panel 3 can be attached in an arbitrary location in thesurface 5 a to be attached that is one surface of theobject 5. Therefore, the holdingmember 1 can be bonded in an arbitrary location in thesurface 5 a to be attached as well. - In the example of
FIG. 3A , the holdingmember 1 is bonded so that when thedisplay panel 3 is mounted, an upper end of thedisplay panel 3 is substantially proximal to a top surface (upper edge) of theobject 5. Theobject 5 is oriented in an arbitrary orientation relative to the gravitational direction when thedisplay panel 3 is in use. For example, theobject 5 is provided in an orientation in which the gravity acts on the direction indicated by the arrow Y in the example ofFIG. 3A . - Next, as shown in
FIG. 3C which is a side view ofFIG. 3B andFIG. 3B , a lower end of thedisplay panel 3 is introduced so as to engage into thegroove 1 b of the holdingmember 1. Prior to this, preferably, on thesurface 5 a to be attached, the weakadhesive layer 6 is formed using the adhesive agent. The weakadhesive layer 6 may be provided, not on thesurface 5 a to be attached, but on the surface of thedisplay panel 3 facing to thesurface 5 a to be attached, as indicated by the double-dotted chain line inFIG. 3C . The weakadhesive layer 6 is formed by arranging the weak adhesive sheet formed by shaping the adhesive agent in a predetermined shape, for example, on thesurface 5 a to be attached or on the surface of thedisplay panel 3 facing to thesurface 5 a to be attached. - In addition, the method for attaching the display panel of the present embodiment, as shown in
FIG. 3C , may further include providing a strongadhesive layer 7 having an adhesive force which is equal to or more than the adhesive force of the weakadhesive layer 6 between the weakadhesive layer 6 and thedisplay panel 3 in addition to formation of the weakadhesive layer 6. In a case where the weakadhesive layer 6 is formed on thesurface 5 a to be attached, the strongadhesive layer 7 can be formed between the weakadhesive layer 6 and thesurface 5 a to be attached. The strongadhesive layer 7 can come into close contact with thedisplay panel 3 or the weakadhesive layer 6 at stronger adhesive strength than the adhesive strength between the weakadhesive layer 6 and thesurface 5 a to be attached or thedisplay panel 3. If the strongadhesive layer 7 thus bonded with the weakadhesive layer 6 is formed, thedisplay panel 3 can be removed from thesurface 5 a to be attached while the weakadhesive layer 6 is left on either desired one of thedisplay panel 3 and thesurface 5 a to be attached. Consequently, the work of detaching and replacing thedisplay panel 3 may be easily carried out. - Each of the adhesion strength between the strong
adhesive layer 7 and thedisplay panel 3 and the adhesion strength between the strongadhesive layer 7 and thesurface 5 a to be attached is 2.5 N/10 mm or more and 20 N/10 mm or less for example, and is preferably 5.0 N/10 mm or more and 20 N/10 mm or less. As long as such relation among the adhesion strength is maintained, thedisplay panel 3 can be detached in a state that the weakadhesive layer 6 is securely adhered to a desired element (display panel 3 orsurface 5 a to be attached). The strongadhesive layer 7 can also be formed using a material including an acryl-based resin, silicone-based resin, or urethane-based resin as main component. In addition, the weakadhesive layer 6 and the strongadhesive layer 7 may be laminated via a film material made of polyethylene terephthalate or the like. - As the
display panel 3 to be attached using the method for attaching the display panel of the present embodiment, as described above, an organic EL display panel or a liquid crystal display panel or the like is exemplified. However, thedisplay panel 3 is not limited thereto. Thewiring board 9 is connected to thedisplay panel 3 by, for example, thermo-compression bonding using the ACF as described above. Thewiring board 9 and thedisplay panel 3 may be connected to each other using a connector not shown. - In the method of the present embodiment, it is preferable that permeation of moisture to an interface between the
display panel 3 and thesurface 5 a to be attached is reliably prevented in view of maintenance of the state of close contact therebetween. Therefore, in order to prevent entry of moisture into thedisplay panel 3, prior to attaching of thedisplay panel 3 to thesurface 5 a to be attached, a barrier film 33 (refer toFIG. 3C ) may be formed using a moisture impermeable material on thedisplay surface 32. As the moisture impermeable material, silicon nitride, silicon oxide, and silicon nitride oxide or the like is exemplified. As thebarrier film 33, one of a silicon nitride film, a silicon oxide film, and a silicon nitride oxide film may be formed, or two or more of these films may be formed in a laminated state. Further, in addition to these films formed using an inorganic material, abarrier film 33 including an organic film formed using an epoxy resin or an acrylic resin may be formed. The film formed using an inorganic material such as a silicon nitride film can be formed using a PECVD technique or a sputtering technique or the like. An organic film can be formed using a printing technique employing an inkjet printer. - Subsequently, the
display panel 3 is inserted into thegroove 1 b of the holdingmember 1. In the examples ofFIG. 3A toFIG. 3D , thedisplay panel 3 is attached so as to abut against the holdingmember 1. As shown inFIG. 3D , thedisplay panel 3 may be pressed towards thesurface 5 a to be attached to thereby bring thedisplay panel 3 and thesurface 5 a to be attached into close contact via the weakadhesive layer 6. After attachment of thedisplay panel 3 has completed, in a case where the weakadhesive layer 6 and thedisplay panel 3 or thesurface 5 a to be attached do not contact with each other, it is preferable to carry out the above pressing work of thedisplay panel 3. In addition, as described above, in a case where the weakadhesive layer 6 is formed using the adhesive agent that develops adhesiveness by applying a pressure, thedisplay panel 3 and thesurface 5 a to be attached can be brought into close contact with each other via the weakadhesive layer 6 by carrying out such a step of pressing thedisplay panel 3. -
FIG. 3D shows an example of a case in which thedisplay panel 3 is pressed with apressing member 101. The pressingmember 101 may be moved from the vicinity of the holdingmember 1 towards the upper end part of thedisplay panel 3, when thedisplay panel 3 is pressed towards thesurface 5 a to be attached. By pressing thedisplay panel 3 in this way it is possible to discharge the air that can be air bubbles in the interface between the weakadhesive layer 6 and thedisplay panel 3 or thesurface 5 a to be attached to the outside. Consequently, the weakadhesive layer 6 and thedisplay panel 3 or thesurface 5 a to be attached can be reliably brought into close contact with each other. The pressingmember 101 is not limited in particular as long as it is possible to apply a pressure to thedisplay panel 3. In a case where thepressing member 101 is moved, a member capable of rolling such as a roller is preferable as the pressingmember 101 from the viewpoint of reduction of a stress imparted to thedisplay panel 3. - An example of a structure of an organic EL display panel used as the
display panel 3 will be described referring toFIG. 4 which shows an example thereof in an enlarged manner. As shown inFIG. 4 , thedisplay panel 3 includes asubstrate 30 and a plurality oflight emitting elements 34 formed on thesubstrate 30. As thesubstrate 30, a resin film formed using a polyimide resin or a glass plate is exemplified. For example, on theflexible substrate 30 formed by a slot die coating technique using the polyimide resin or the like, a plurality of organic EL light emitting elements (light emitting elements 34) are formed in a matrix form. Each of thelight emitting elements 34 has: a TFT (thin film transistor) 35; afirst electrode 36 connected to theTFT 35; anorganic layer 37 to emit light formed of an organic material vapor-deposited on thefirst electrode 36; and asecond electrode 38 formed on theorganic layer 37. Each of thelight emitting elements 34 is separated from otherlight emitting elements 34 by aninsulation bank 39 formed using an insulation resin or SiO2 or the like. Thefirst electrode 36 and theinsulation bank 39 are formed on aflattening layer 40 that covers theTFT 35. - The
TFT 35 can be formed by forming a channel layer composed of polycrystalline silicon or the like, an insulation layer, and each electrode, which are formed through, for example, a step of forming a film by sputtering or the like, steps of exposure and development for photoresist, and a step of patterning by etching. Alternatively, a transparent amorphous oxide semiconductor such as an oxide of indium, gallium, and zinc may be used for the channel layer. Thefirst electrode 36 is formed by forming a film and patterning using a conductive material having light transmission property such as an ITO layer. Then, theinsulation bank 39 is formed by forming a resin layer and patterning the resin layer, and within each division surrounded by theinsulation bank 39, theorganic layer 37 is formed using a vacuum vapor deposition technique using a mask, or an inkjet technique or the like. Although theorganic layer 37 is shown as a single layer inFIG. 4 , actually, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer or the like are formed in order by the vacuum vapor deposition technique or the like so that theorganic layer 37 having a multilayered structure is formed. Each layer of theorganic layer 37 can be formed using a known material. Then, thesecond electrode 38 is formed to be sufficiently thinner than a light wavelength so as to have transparency by using a technique such as vacuum vaper deposition. Thesecond electrode 38 is formed using, for example, a metal with a small work function such as an Mg—Ag alloy layer or aluminum or an alkaline metal or an alkaline earth metal. Further, on a surface of thesecond electrode 38, aprotection layer 41 made of, for example, Si3N4 is formed. The barrier layer 33 (refer toFIG. 3C ) described above may be formed as theprotection layer 41. The cross-sectional structure shown inFIG. 4 is provided as a mere example, and the structure of the organic EL display panel constituting thedisplay panel 3 and materials for each constituent element and forming method for the constituent element are not limited to the structures, the materials, and the forming method described herein. - It can be appreciated that in a case where the
display panel 3 is the liquid crystal display panel (not shown), thedisplay panel 3 includes: a first substrate formed using a very thin glass plate or the like; a second substrate having flexibility, which is disposed to be spaced from the first substrate; and a liquid crystal layer between the first and second substrates. Thedisplay panel 3 is provided with: a TFT formed on the first substrate; a pixel electrode connected to this TFT; and a first alignment film formed on the pixel electrode. In addition, thedisplay panel 3 may be provided with: a color filter, a common electrode, and a second alignment film, all of which are provided in order on the second substrate. The liquid crystal layer is composed of a liquid crystal material filled between the first and second alignment films. A polarization film is provided on each of respective surfaces of the first substrate and the second substrate, which are opposite to the surfaces facing the liquid crystal layer. In a case where a liquid crystal display panel is formed as thedisplay panel 3, each electrode, alignment films, polarization films, and liquid crystal layer which constitute the liquid crystal display panel can be formed by any method including a well-known method. Therefore, a detailed description thereof is omitted. - The
display panel 3 formed of the organic EL display panel or the liquid crystal display panel is preferably manufactured simultaneously in plurality by using a substrate (for example, substrate 30) having a size in which a plurality ofdisplay panels 3 can be arrayed. In addition, after the respective constituent elements of thedisplay panel 3 have been formed, the plurality ofdisplay panels 3 which are arranged on the substrate are divided by cutting the substrate and separated each other. At the time of the above cutting and separation, theconcave portion 3 a or the like mentioned above can be formed. - In
FIG. 5A , there is shown an example of thedisplay panel 3 attached to a windshield of a motor vehicle by the method for attaching the display panel of Embodiment 2. In the example ofFIG. 5A , thedisplay panel 3 of the present embodiment is attached to the windshield of the motor vehicle having thesurface 5 a to be attached as a surface facing an interior of the vehicle. That is, the holdingmember 1 is bonded with thesurface 5 a to be attached (the surface of the vehicle windshield facing interior of the vehicle), and thedisplay panel 3 is held by the holdingmember 1. In addition, thedisplay panel 3 in the example ofFIG. 5A is a transparent organic EL display panel formed using a light transmissible material, and in a right side region of thedisplay panel 3, light emission in pixel 31 (refer toFIG. 1A ) is stopped. Thus, a front side scene, through the windshield, including such as signal S1 and a various traffic signs S2 is visible in the right side region of thedisplay panel 3. On the other hand, in a left side region of thedisplay panel 3, an image produced by a navigation system is displayed by driving thepixel 31. Thedisplay panel 3, as in the example ofFIG. 5A , may be capable of partially displaying an image on the display screen, or may be such a partial display. - A vehicle windshield is often mounted on a vehicle so as to incline a top edge thereof to an interior of the vehicle. The operation of attaching the
display panel 3 to a surface of such windshield which faces the interior of the vehicle is carried out in a face-up state, therefore, it is very difficult to accurately position thedisplay panel 3 in a predetermined position in such a state. Further, in the operation in such a difficult situation, thedisplay panel 3 may not be able to be attached in an accurate position at first try, and correction of the position or retrial of the operation of the attaching may be required. Thus, there is a risk that thedisplay panel 3 is broken through the additional operations. However, by using the method for attaching display panel according to the present embodiment, it is possible to attach thedisplay panel 3 easily as well as accurately at the predetermined position even on the vehicle windshield. - Although in the example of
FIG. 5A , the holdingmember 1 is bonded in the vicinity of an upper edge of the windshield in front of a driver seat, the holdingmember 1 can be attached in any position on the windshield. In addition, a plurality of holdingmembers 1 may be bonded to the windshield, and a plurality ofdisplay panels 3 may be attached. - In addition, in the example of
FIG. 5A , the holdingmember 1 is bonded to the windshield in a downward location of thedisplay panel 3 in the gravitational direction at the time of normal use of the motor vehicle. Therefore, downward movement of thedisplay panel 3 by the gravitational action can be restricted by the holdingmember 1. However, as described later, the positional relationship is not limited to this. - Furthermore, in the example of
FIG. 5A , thewiring board 9 extends to a space between an upholstery of the ceiling part in the interior of the vehicle and a roof of the vehicle at the upper edge of the windshield. Thewiring board 9 is inserted into aconnector 21 disposed between the upholstery of the ceiling part and the roof of the vehicle. Theconnector 21 may be coupled to a driver (not shown) to supply a drive signal to thedisplay panel 3. By way of such arrangement, it is possible to reduce a length of thewiring board 9. Further, thedisplay panel 3 can be accurately attached at the predetermined position by using the method for attachingdisplay panel 3 of the present embodiment, therefore, any excessiveness or shortage of the length of the wiring board from thedisplay panel 3 to theconnector 21 hardly occurs. Therefore, it is possible to reduce exposure of thewiring board 9 inside the interior of the vehicle. - In
FIG. 5B , there is shown additional steps to be carried out to obtain the form illustrated inFIG. 5A in a case where thedisplay panel 3 is attached to the windshield of the motor vehicle by using the method for attaching the display panel of the present embodiment. As shown inFIG. 5B , the method for attaching the display panel to the windshield by using the method of the present embodiment may include the step of connecting theflexible wiring board 9 that is connected to thedisplay panel 3 to theconnector 21 that is disposed at the ceiling part of the vehicle of the motor vehicle, after thedisplay panel 3 has been attached to the predetermined location. Afterwards, theinterior member 24 that covers theconnector 21 may be mounted to the ceiling part of the vehicle. In the example ofFIG. 5B , theconnector 21 provided with alock lever 21 a is implemented on thesubstrate 22 on which a driver (not shown) to supply a drive signal to thedisplay panel 3 has been implemented. Theconnector 21 is disposed in the predetermined location in a space secured between theroof 23 and theinterior member 24 in the ceiling part of the vehicle. On a surface facing to the outside of the vehicle at an end of theroof 23, an upper end of a surface (surface 5 a to be attached) facing to the interior of the vehicle of a windshield (object 5) is bonded with thebonding agent 26.Reference numeral 25 designates a sound insulation member disposed between theroof 23 and theinterior member 24. - Although in the example described above, the holding
member 1 was located at the lower end of thedisplay panel 3, the location of the holdingmember 1 is not limited to the lower end of thedisplay panel 3. The holdingmember 1 may be disposed at a side edge or an upper edge of thedisplay panel 3. This is because thedisplay panel 3 is bonded with theobject 5 by way of the weakadhesive layer 6. As long as the concave portion and the convex portion described above is formed at the side edge of the display panel, thedisplay panel 3 can be supported by the concave portion and the convex portion to a certain extent. In addition, if the holdingmember 1 is provided at an upper part of thedisplay panel 3, a part of thedisplay panel 3 is inserted into thegroove 1 b of the holdingmember 1 and thus is also supported by the holdingmember 1 to a certain extent. - Such an example in a case where the holding
member 1 is provided at the upper part of thedisplay panel 3 is shown inFIG. 6A andFIG. 6B .FIG. 6A is a plan view showing a state in which at an upper edge of the windshield (object 5) of the motor vehicle, for example the holdingmember 1 is bonded in which thegroove 1 b is located so as to be oriented downward, and thedisplay panel 3 is provided so as to be inserted into the groove of the holdingmember 1, andFIG. 6B shows a sectional view after attachment Each component is the same as the example described above, and the same portions are designated with the same reference numerals and description thereof is omitted. In this case, theconcave portion 3 a (or the convex portion) of thedisplay panel 3 is, of course, formed at the upper edge of thedisplay panel 3. - By employing this structure, even if the holding
member 1 is attached to the windshield of the motor vehicle, this holding member is hardly conspicuous. Thus, thedisplay panel 3 is removed when not in use, and the scene of the front side can be thereby observed without any feeling of any sense of discomfort. As described above, as long as thedisplay panel 3 is formed of transparent components, the scene of the front side can be observed even ifdisplay panel 3 is not detached. - (1) A display apparatus according to
Embodiment 1 of the present invention comprises: an object having a plane or curved surface; a display panel having at least one of a concave portion and a convex portion at any part of peripheral edge; a holding member mounted on a predetermined location of the object, the holding member having a convex portion or a concave portion corresponding to and engaging with the concave portion or the convex portion of the display panel; and a weak adhesive layer interposed between the object and the display panel to bring the object and the display panel into close contact with each other. - According to the display apparatus of
Embodiment 1, a concave portion and a convex portion which are formed in the holding member and the display panel so as to be capable of engaging each other, so that a position or a direction of attachment of the display panel is specified by the holding member. Further, the holding member can be made very small, and even if the holding member is mounted to a window glass or a windshield of a motor vehicle or the like, any sense of discomfort is not felt. Moreover, the holding member is attached by the weak adhesive layer, so that the holding member can be easily released, and in a case where the display panel is not in use, the display panel can be detached, and the holding member is left in place as it is, and the display panel can be thereby attached in a case where the display panel is in use as well. - (2) It is preferable that the holding member has a length of 1/12 or more and ⅓ or less of a length of an outer peripheral edge of the display panel, and is formed of a transmissible material, whereby any sense of discomfort is not felt while the display panel is held in an accurate location and direction because the holding member is very small.
- (3) It is preferable that the holding member is divided into a plurality of sections, and a length of each section of the plurality of sections of the holding member has a length of 1/50 or more and 1/12 or less of a length of an outer peripheral edge of the display panel.
- (4) A method for attaching a display panel of a second embodiment of the present disclosure comprises: preparing a display panel having at least one of a concave portion and a convex portion at any part of a peripheral edge; preparing a holding member having a convex portion or a concave portion corresponding to the concave portion or the convex portion of the display panel; bonding the holding member to an object having a predetermined plane or curved face; providing a weak adhesive layer, using an adhesive agent, on an attachment region of the object with the display panel, or a surface facing to the object in the display panel; and combining the display panel to the holding member while engaging the concave portion or the convex portion of the display panel with the convex portion or the concave portion of the holding member, and bringing the display panel into close contact with the object with the weak adhesive layer.
- According to the attaching method of Embodiment 2, a concave portion and a convex portion are formed in the holding member and the display panel so as to be capable of engaging each other, and thus even by a very short holding member, the display panel can be accurately mounted to the holding member. In addition, the holding member is aligned without attaching the display panel and then only the holding member can be bonded to the object and thus it is not need to peel off the display panel for reason that the bonded location of the display panel is inappropriate, and the display panel can be attached very accurately and efficiently in a predetermined location and a predetermined orientation.
- (5) A groove capable of inserting a lower end of the display panel is formed in the holding member, and the lower end of the display panel is inserted into the groove, whereby even by way of a short holding member, the display panel can be strongly held, and the holding member can be provided at a side or an upper part of the display panel.
- (6) It is preferable that the holding member is formed of a light transmissible member, and the display panel is an organic EL display panel formed on a light transmissible substrate, whereby even if the holding member or the display panel is left, the scene of the front side can be observed.
- (7) It is preferable that the weak adhesive layer is formed of using an adhesive agent that develops adhesiveness by applying a pressure, whereby when a display panel is attached, the display panel is engaged with a holding member without being bonded with the object and thereafter it is able to attached by applying the pressure.
- (8) It is preferable that when the display panel is brought into close contact with the object, and the display panel is sequentially pressurized from a vicinity of the holding member towards an opposite location to the holding member, thereby the display panel can be attached without involvement of air bubbles.
- (9) It is preferable that the holding member is bonded at a vicinity of an outer edge of the object and along the outer edge of the object, because the holding member is almost conspicuous and any sense of discomfort is not felt by detaching a display panel, even when the display panel is attached to a window glass or a windshield of a motor vehicle.
- (10) A method for attaching a display panel to a windshield of the motor vehicle by using the method for attaching a display panel of any one of (4) to (9), further comprising: bringing the display panel into close contact with a predetermined location and thereafter connecting a connector disposed in a ceiling part of a motor vehicle with a flexible wiring board connected to the display panel; and mounting an interior member covering the connector to the ceiling part because the wiring board is made inconspicuous.
-
- 1 Holding member
- 1 a Convex portion
- 1 b Groove
- 1 c Concave portion
- 3 Display panel
- 3 a Concave portion
- 3 c Convex portion
- 5 Object
- 6 Weak adhesive layer
- 9 Wiring board
- 10 Display apparatus
Claims (17)
Priority Applications (1)
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US201816062104A | 2018-12-19 | 2018-12-19 | |
US16/749,582 US20200161581A1 (en) | 2017-12-22 | 2020-01-22 | Display apparatus and method for attaching display panel |
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US16/062,104 Continuation US10586943B2 (en) | 2017-12-22 | 2017-12-22 | Display apparatus and method for attaching display panel |
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US16/749,582 Abandoned US20200161581A1 (en) | 2017-12-22 | 2020-01-22 | Display apparatus and method for attaching display panel |
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JP2019119445A (en) * | 2018-01-04 | 2019-07-22 | ハーマン インターナショナル インダストリーズ インコーポレイテッド | Moodroof for augmented media experience in vehicle cabin |
JP6851436B2 (en) * | 2019-08-02 | 2021-03-31 | 日本発條株式会社 | Temperature sensor, heater unit |
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US5971468A (en) * | 1998-06-16 | 1999-10-26 | Ut Automotive Dearborn, Inc. | Incorporation of vehicle display into vehicle sunvisor |
EP1263626A2 (en) * | 2000-03-02 | 2002-12-11 | Donnelly Corporation | Video mirror systems incorporating an accessory module |
TW548479B (en) * | 2001-02-27 | 2003-08-21 | Matsushita Electric Ind Co Ltd | Display device, display panel for the device, and the manufacturing method thereof |
AU2002328264A1 (en) * | 2002-04-29 | 2003-11-17 | Magna Donnelly Gmbh & Co. Kg | Cover module |
JP4169326B2 (en) * | 2002-08-30 | 2008-10-22 | 株式会社パイロットコーポレーション | Display panel |
JP2004354814A (en) * | 2003-05-30 | 2004-12-16 | Akikuni Nishida | Video projection device for automobile |
US20050200696A1 (en) * | 2004-03-09 | 2005-09-15 | Audiovox Corporation | Display device mountable in a vehicle |
US20070019371A1 (en) * | 2005-07-22 | 2007-01-25 | E-Lead Electronic Co., Ltd. | Multimedia display device attached to a sunroof of vehicles |
JP2009093397A (en) * | 2007-10-09 | 2009-04-30 | Panasonic Corp | Touch panel and input device using the same |
JP2011156895A (en) * | 2010-01-29 | 2011-08-18 | Fujitsu Ten Ltd | Mirror device, and mirror system |
US20120146357A1 (en) * | 2010-12-14 | 2012-06-14 | Huang Wen-Tse | Electrically-operated storage assembly for vehicles |
CN202541257U (en) * | 2012-01-20 | 2012-11-21 | 法国圣戈班玻璃厂 | Head-up display windshield as well as system and automobile with same |
KR101470211B1 (en) * | 2013-09-26 | 2014-12-05 | 현대자동차주식회사 | Display device holder apparatus for sun visor |
KR102230485B1 (en) * | 2013-12-30 | 2021-03-23 | 삼성디스플레이 주식회사 | Display panel and method of manufacturing the same |
KR20150093278A (en) * | 2014-02-06 | 2015-08-18 | 삼성디스플레이 주식회사 | Display apparatus |
KR102015398B1 (en) | 2014-07-16 | 2019-08-29 | 엘지디스플레이 주식회사 | Foldable display apparatus |
WO2016020808A1 (en) * | 2014-08-07 | 2016-02-11 | 株式会社半導体エネルギー研究所 | Display device and driving assistance system |
US9457642B2 (en) * | 2014-09-19 | 2016-10-04 | Ankit Dilip Kothari | Vehicle sun visor with a multi-functional touch screen with multiple camera views and photo video capability |
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JP6375564B2 (en) | 2014-11-26 | 2018-08-22 | Agc株式会社 | Manufacturing method of laminate |
US10079503B2 (en) * | 2016-09-22 | 2018-09-18 | Valencia Burton | Alternative energy car sun visor |
CN106739995B (en) * | 2017-02-14 | 2023-07-04 | 京东方科技集团股份有限公司 | Sun shield |
FR3066451B1 (en) * | 2017-05-18 | 2019-05-03 | Aptiv Technologies Limited | CONTROL PANEL FOR MOTOR VEHICLE |
US10336263B2 (en) * | 2017-11-09 | 2019-07-02 | Ford Global Technologies, Llc | Sun visor assembly with electronic device receiver |
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2017
- 2017-12-22 US US16/062,104 patent/US10586943B2/en not_active Expired - Fee Related
- 2017-12-22 JP JP2018515693A patent/JP6354003B1/en not_active Expired - Fee Related
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- 2020-01-22 US US16/749,582 patent/US20200161581A1/en not_active Abandoned
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JPWO2019123648A1 (en) | 2019-12-19 |
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US10586943B2 (en) | 2020-03-10 |
US20190355923A1 (en) | 2019-11-21 |
WO2019123648A1 (en) | 2019-06-27 |
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