Display device

Abstract

To provide a display device which has excellent disassembly properties.SOLUTION: A display device 100 comprises: a display part 1 for displaying an image; a cover panel 2 for covering the display part 1 from the front; an escutcheon 6; and double-sided tape 7. The cover panel 2 includes: a transmission part 20 through which light representing an image is transmitted; and an outer edge part 21a positioned on the outside of the transmission part 20. The escutcheon 6 includes: a frame part 61 surrounding an edge face of the cover panel 2; and an opposing part 62 facing a rear face of the outer edge part 21a. The double-sided tape 7 extends along the outer edge part 21a to fix the outer edge part 21a and the opposing part 62. In the opposing part 62, there is formed a hole H1 which exposes a portion in the long-sized direction of the double-sided tape 7 to a rear face side of the opposing part 62.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a display device. [Background technology]

[0002] Patent Document 1 describes a display device that includes a cover panel (display cover) that covers a display unit (display section) from the front, and an escutcheon that is adhesively fixed to the back surface of the cover panel. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-173947 Summary of the Invention [Problem to be solved by the invention]

[0004] In the display device of Patent Document 1, the cover panel and escutcheon are fixed and sealed with an adhesive layer, so when attempting to disassemble the device for rework or recycling purposes, it is difficult to approach the adhesive layer, and disassembly may be difficult.

[0005] The present disclosure has been made in consideration of the above-described circumstances, and aims to provide a display device that is easy to disassemble. [Means for solving the problem]

[0006] In order to achieve the above object, the display device according to the present disclosure comprises: a display unit for displaying an image; a cover panel that covers the display unit from the front, the cover panel having a transmissive portion through which light representing the image passes and an outer edge portion located outside the transmissive portion; an escutcheon having a frame portion surrounding an end face of the cover panel and an opposing portion opposing a back surface of the outer edge portion; a double-sided tape extending along the outer edge portion and fixing the outer edge portion and the facing portion together; The facing portion has a hole formed therein through which a portion of the double-sided tape in the longitudinal direction is visible to the rear side of the facing portion. [Effects of the Invention]

[0007] According to the present disclosure, a display device that is easy to disassemble can be provided. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front view of a display device according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a front view of the display device according to the embodiment with a cover panel removed. [Figure 3] FIG. 2 is a schematic cross-sectional view of the display device according to the embodiment taken along line II in FIG. 1. [Figure 4] 10A and 10B are diagrams illustrating a double-sided tape according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the present disclosure will be described with reference to the drawings.

[0010] As shown in FIGS. 1 to 3, the display device 100 according to this embodiment includes a display unit 1, a cover panel 2, a transparent layer 3, a case 4, a circuit board 5, an escutcheon 6, and a double-sided tape 7. For example, the display device 100 is installed on the dashboard (including the instrument panel) of a vehicle. FIG. 3 is a schematic cross-sectional view of the display device 100 taken along line II in FIG. 1. This line II corresponds to line II-II in FIG. 2.

[0011] Hereinafter, as directions relative to the display device 100, the direction in which the display unit 1 displays an image as described below will be referred to as the "front" (shown as "F" in FIG. 3), and the opposite direction will be referred to as the "rear" (shown as "B" in FIG. 3) (the same applies to FIG. 4 described below). The rear surface of a predetermined configuration provided on the display device 100 will also be referred to as the "rear face."

[0012] The display unit 1 includes a display such as an LCD (Liquid Crystal Display) or an organic EL (Electro-Luminescence) display, and a frame that houses the display. The display unit 1 has a display surface 11 that displays an image on the front surface of the display. As shown in FIG. 2, the display surface 11 is substantially rectangular when viewed from the front. The display unit 1 is capable of displaying images showing various types of information related to the vehicle under the control of a control unit (not shown).

[0013] The cover panel 2 covers the display unit 1 from the front and is made by forming a light-shielding layer by printing or the like on a transparent plate made of organic or inorganic glass. As shown in FIG. 1, the cover panel 2 has a substantially rectangular shape when viewed from the front. For example, the light-shielding layer is formed on the back surface of the transparent plate. The cover panel 2 is fixed to the front surface of the display unit 1 by optical bonding. As a result, a transparent layer 3 is provided between the cover panel 2 and the display unit 1, as shown in FIG. 3.

[0014] The cover panel 2 has a transmissive portion 20 through which light representing an image displayed on the display surface 11 passes, and an enclosing portion 21 that surrounds the transmissive portion 20. The transmissive portion 20 is a portion of the aforementioned transparent plate where a light-shielding layer is not formed. The enclosing portion 21 is a portion of the aforementioned transparent plate where a light-shielding layer is formed. The enclosing portion 21 is located on the outer edge of the cover panel 2 and has an outer edge portion 21a that faces a facing portion 62 (described below) in the front-to-rear direction. In other words, the outer edge portion 21a is located outside the transmissive portion 20. The outer edge portion 21a follows the four sides of the approximately rectangular cover panel 2.

[0015] As shown in FIG. 3 , the case 4, together with the cover panel 2 and the escutcheon 6, constitutes the exterior of the display device 100. The case 4 has a bottom 40 and a side wall 41 that stands forward from the outer edge of the bottom 40. The case 4 is formed in a box shape with an opening surrounded by the front end of the side wall 41. The display unit 1 and the circuit board 5 are housed in a chamber surrounded by the case 4 and the escutcheon 6. The circuit board 5 is a PCB (Printed Circuit Board) that is electrically connected to the display unit 1. For example, a microcontroller that controls the operation of the display unit 1 is mounted on the circuit board 5.

[0016] The escutcheon 6 is a member formed in a frame shape around the end face of the cover panel 2 and combined with the case 4, and is made of, for example, synthetic resin. The escutcheon 6 may also be made of metal. Although not shown, the escutcheon 6 is fastened to the side wall portion 41 of the case 4 by fastening means such as a hook mechanism.

[0017] The escutcheon 6 has a frame portion 61 and an opposing portion 62. The frame portion 61 surrounds the end face of the cover panel 2 and extends to the side wall portion 41 of the case 4. As shown in FIG. 2, the frame portion 61 has a substantially rectangular shape in a front view corresponding to the outer shape of the cover panel 2. The opposing portion 62 is a portion that faces the back surface of the outer edge portion 21a of the cover panel 2 and supports the outer edge portion 21a. The opposing portion 62 protrudes from the inner surface of the frame portion 61 toward the display unit 1. An opening 62a is formed in the escutcheon 6 so as to be surrounded by the end face of the opposing portion 62. The display unit 1 is positioned within this opening 62a.

[0018] The double-sided tape 7 extends along the outer edge 21a of the cover panel 2 and secures the outer edge 21a and the opposing portion 62 of the escutcheon 6 together. The double-sided tape 7 has a well-known configuration in which an adhesive layer is provided on the front and back surfaces of a strip-shaped base material. For example, it is preferable to use a releasable stretch-release adhesive tape as the double-sided tape 7. For example, as shown in FIG. 2, four double-sided tapes 7 are provided, one for each of the four sides of the substantially rectangular cover panel 2 (which are synonymous with the four sides of the corresponding substantially rectangular frame portion 61).

[0019] Holes H1 to H4 are formed in the facing portion 62 of the escutcheon 6, allowing a portion of each double-sided tape 7 in the longitudinal direction to be seen from the rear side of the facing portion 62. In this embodiment, holes H1 to H4 allow ends of the double-sided tapes 7 in the longitudinal direction to be seen from the rear side of the facing portion 62. Here, hole H1 corresponds to the double-sided tape 7 located at the bottom of FIG. 2, of the two double-sided tapes 7 extending in the left-right direction of FIG. 2. Hole H2 corresponds to the double-sided tape 7 located at the top of FIG. 2, of the two double-sided tapes 7 extending in the left-right direction of FIG. 2. Hole H3 corresponds to the double-sided tape 7 located at the left of FIG. 2, of the two double-sided tapes 7 extending in the up-down direction of FIG. 2. Hole H4 corresponds to the double-sided tape 7 located at the right of FIG. 2, of the two double-sided tapes 7 extending in the up-down direction of FIG. 2.

[0020] As shown in FIG. 2, although the positions of the holes H1 to H4 in the opposing portion 62 are different, the roles of the holes H1 to H4 relative to the double-sided tape 7 are the same, and therefore, hereinafter, the hole H1 and the double-sided tape 7 corresponding to the hole H1 will be described as representatives.

[0021] 3, the hole H1 allows the longitudinal end of the double-sided tape 7 to be seen from the rear side of the facing portion 62. This allows the double-sided tape 7 to be accessed through the hole H1 with fingers, tweezers, or the like, with the case 4 removed from the display device 100, making it easy to remove the cover panel 2 from the escutcheon 6. In other words, the display device 100 is easy to disassemble.

[0022] 3, a protective film 7a may be provided on the front surface of the end of the double-sided tape 7. This prevents the end of the double-sided tape 7 from adhering to the back surface of the cover panel 2, making it possible to easily peel off the double-sided tape 7.

[0023] The present invention is not limited to the above-described embodiments and drawings, and modifications (including the omission of components) can be made as appropriate within the scope of the present invention.

[0024] (Variation) As shown in FIG. 4 , the double-sided tape 7 may be folded back from the front side to the rear side of the facing portion 62 through the hole H1, with a fixed end 7f adhered to the rear side of the facing portion 62. In this manner, the hole H1 may allow a portion of the double-sided tape 7 in the longitudinal direction to be exposed to the rear side of the facing portion 62. This makes it easier to access the double-sided tape 7 and remove the cover panel 2 from the escutcheon 6 after the case 4 is removed from the display device 100. In other words, the display device 100 according to this modification also has good dismantling properties. Furthermore, with the display device 100 according to this modification, the fixed end 7f of the double-sided tape 7 does not dangle, thereby suppressing the generation of abnormal noise due to vibrations caused by vehicle operation.

[0025] Furthermore, a protective film 7a may be provided on the back surface of the fixed end 7f to reduce the adhesion of dust and the hassle of sticking during assembly or disassembly.

[0026] Furthermore, it is preferable that the target back surface 62f, which is the portion of the back surface of the facing portion 62 to which the fixed end portion 7f is adhered, be subjected to an adhesive strength reducing treatment that reduces the adhesive strength of the double-sided tape 7 compared to the front surface of the facing portion 62. The adhesive strength reducing treatment can be performed by forming the target back surface 62f into a rough surface (by providing fine irregularities) or by applying a surface coating that reduces the adhesive strength. This makes it easier to peel the fixed end portion 7f from the target back surface 62f.

[0027] (Other variations) The opposing portion 62 of the escutcheon 6 may have a hole formed therein that allows not only one end of the double-sided tape 7 in the longitudinal direction but also the other end to be seen from the rear side. The shape, length, and number of the double-sided tape 7 can be changed as desired depending on the shape of the cover panel 2.

[0028] In the above description, in order to facilitate understanding of the present disclosure, descriptions of well-known technical matters have been omitted as appropriate.

[0029] This invention allows various embodiments and modifications without departing from the broad spirit and scope of this invention. Furthermore, the above-described embodiments are intended to explain this invention and do not limit the scope of this invention. That is, the scope of this invention is defined by the claims, not the embodiments. Various modifications made within the scope of the claims and the meaning of the invention equivalent thereto are considered to be within the scope of this invention. [Explanation of symbols]

[0030] 100…Display device 1...display section, 11...display surface 2...cover panel, 20...transmitting portion, 21...enclosure portion, 21a...outer edge portion 3…Transparent layer 4...case, 40...bottom, 41...side wall 5...Circuit board 6...Escutcheon 61...Frame 62...opposing portion, 62a...opening, 62f...target back surface 7...double-sided tape, 7a...protective film, 7f...fixed end H1~H4…hole

Claims

1. a display unit for displaying an image; a cover panel that covers the display unit from the front, the cover panel having a transmissive portion through which light representing the image passes and an outer edge portion located outside the transmissive portion; an escutcheon having a frame portion surrounding an end face of the cover panel and an opposing portion opposing a back surface of the outer edge portion; a double-sided tape extending along the outer edge portion and fixing the outer edge portion and the facing portion together; The facing portion has a hole formed therein through which a portion of the double-sided tape in the longitudinal direction is visible to the rear side of the facing portion. Display device.

2. the hole allows an end portion of the double-sided tape in a longitudinal direction to be seen from the rear side of the facing portion; A protective film is provided on the front surface of the end of the double-sided tape. The display device according to claim 1 .

3. the double-sided tape passes through the hole and is folded back from the front side to the rear side of the facing portion, and has a fixed end portion that is adhered to the rear side of the facing portion. The display device according to claim 1 .

4. a back surface of the facing portion, to which the fixed end portion is adhered, is subjected to an adhesive strength reducing treatment that reduces the adhesive strength of the double-sided tape compared to a front surface of the facing portion; The display device according to claim 3 .

Images