JP2001209325A - A display device including a case and a display element, and a method of attaching the display element to the case. - Google Patents

Abstract

(57) [Problem] To provide a display device having a thin overall structure and a method of fixing the display device to a case of a display element with excellent work efficiency. A display element is attached to a leaf spring as an elastic body using an adhesive tape. The leaf spring is attached to the case 4 by inserting the legs 21 and 22 of the attachment portions 19 and 20 into the holes 10 and 11 of the locking members 8 and 9 of the case 4. To assemble, the display element is positioned with respect to the case using the positioning protrusion of the case, and the leaf spring is attached to the case. Next, an adhesive tape is attached from the back side of the leaf spring to the hole 18 of the leaf spring and both sides thereof, and the display element is fixed to the leaf spring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device having a case and a display element, and more particularly, to a display device suitable for use in a small electronic device or the like. Further, the present invention relates to a method for attaching a display element constituting such a display device to a case.

[0002]

2. Description of the Related Art Conventionally, various display devices such as liquid crystal display devices have been used as display devices for computers and the like. In addition, from the viewpoint of space saving or portability, demands for display devices that are smaller, thinner, and lighter are increasing.
In particular, this requirement is extremely high for a display device used for a portable small electronic device.

[0003] An example of the configuration of such a conventional liquid crystal display device is disclosed in Japanese Patent Laid-Open No. 6-230873. In the configuration disclosed therein, a liquid crystal panel as a display element is sandwiched between elastic members as cushioning members arranged above and below the liquid crystal panel. However, in this configuration, since the cushioning members are arranged above and below the liquid crystal panel, there is a limit in making the display device thinner.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to achieve a thinner display device.

[0005]

In order to solve the above-mentioned problems, in the display device according to the present invention, the display element is attached to and fixed to an elastic body, and the elastic body is attached to and fixed to a case. The display element was attached to a case and fixed.

As a means for fixing the display element to the elastic body, an adhesive means including an adhesive tape can be used. Further, as a means for fixing the elastic body to the case, an adhesive means including an adhesive tape or a screw can be used.

As the elastic body, a thin plate having elasticity is used, and the end of the thin plate can be hooked and fixed to a locking member formed integrally with the case.

[0008] As the elastic body, a plurality of elastic bodies can be used.

An elastic body is disposed above the display element, and at least a portion of the display element facing the display section can be cut out or made transparent.

In the method of fixing a display element to a case according to the present invention, the display element is positioned and temporarily fixed to the case, and after the elastic body is fixed to the case,
A display element is fixed to the elastic body.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings, but the scope of the present invention is not limited to the embodiments described below.

FIG. 1 is a perspective view showing a small-sized portable electronic device 1 using a display device 3 according to a first embodiment of the present invention. The electronic device 1 is connected to the device main body 2 provided with 2a.

FIGS. 2A and 2B show the display device 3, wherein FIG. 2A is a longitudinal sectional view, and FIG. 2B is a sectional view taken along the line (II)-(II) in FIG. Note that the hinge portion shown in FIG. 1 is omitted. In the figure, reference numeral 4 denotes a case. The case 4 includes a thin case main body 5 having an open upper part, and a cover 6 fitted into the upper opening of the case main body 5. A transparent windshield 7 is fitted into the central opening of the cover 6.

Reference numeral 15 denotes a liquid crystal panel as a display element. The liquid crystal panel 15 is formed by positioning projections 12 and 13 formed integrally with the cover 6 of the case 4 as shown in FIG.
In the state where the positioning is performed in the left-right direction and the up-down direction in (b), in the present embodiment, the elastic member is disposed on a metal thin plate, for example, a leaf spring 16, and is fixed. ing. That is, the leaf spring 16 has a flat liquid crystal panel mounting portion 17, and a rectangular opening 18 is formed at a substantially central portion thereof, and an adhesive tape 24 as a fixing means faces the opening 18 as shown. The liquid crystal panel 15 is fixed to the leaf spring 16 by attaching the adhesive surface of the flat portion to the back surface of the liquid crystal panel and attaching the adhesive surface of the portion extending to the left and right sides of the opening to the back surface of the leaf spring 16.

The leaf spring 16 includes a liquid crystal panel mounting portion 17.
Are provided with case attachment portions 19 and 20 which are formed by bending substantially L-shape at both left and right end portions, respectively, and a pair of leg portions 21 and 22 are provided at the tip portions of the attachment portions 19 and 20 respectively. It is formed so as to extend in parallel with the liquid crystal panel mounting portion 17. On the other hand, locking projections 8 and 9 as straight locking members, which extend downward in FIG. 1A, are integrally formed on the cover 6 of the case 4 corresponding to the legs 21 of the leaf spring 16, respectively. These locking projections 8 and 9
In FIG. 1A, holes 10 and 11 penetrating in the left-right direction are formed at intermediate positions in the vertical direction in FIG. As shown in FIG.
6 is inserted, the leaf spring 1 is inserted.
Reference numeral 6 is fixed to the case 4, and is restricted from moving in the vertical direction, the horizontal direction, and the front-back direction when viewed from the display surface side of the liquid crystal panel.

The liquid crystal panel 1 in the above display device 3
Explaining how to attach the case 5 to the case 4, the cover 6 of the case 4 placed upside down as shown in FIG.
In contrast, the liquid crystal panel 15 is positioned using the positioning protrusions 12 and 13 and temporarily fixed. Next, the leaf spring 16 is superimposed on the liquid crystal panel 15 and its legs 21 and 22 are covered with the cover 6.
The plate springs 16 are fixed to the cover 6 by inserting them into the holes 10 and 11 of the locking members 8 and 9 formed integrally with the cover 6. Next, the adhesive tape 24 is placed on the leaf spring 16 in a state of extending to the opening 18 and both sides thereof, and the respective portions are attached to the back surfaces of the liquid crystal panel 15 and the leaf spring 16, thereby attaching the liquid crystal panel 15 to the leaf spring 16. 16 and the cover 6.

In the first embodiment, the case 4 is composed of the bottomed case main body 5 having an open upper portion and the cover 6, but the configuration of the case 4 is not limited to this. For example,
The case body may be composed of a case body having an upper part closed and a bottom part opened, and a bottom cover closing the bottom part opening.

FIG. 2 is a view showing a display device 31 according to a second embodiment, in which (a) is a longitudinal sectional view, and (b) is a sectional view taken along the line (b)-(b) in (a). is there. In this embodiment,
Only when the plate spring 16 is fixed to the case 4 is the first
Unlike the first embodiment, other configurations may be the same as those of the first embodiment. Therefore, common portions are denoted by the same reference numerals and description thereof is omitted.

The leaf spring 16a according to this embodiment has a first
The leaf spring 16 according to the second embodiment has the L-shaped case attaching portions 19 and 20 on both sides of the liquid crystal panel attaching portion 17, but the leaf spring 16a according to the second embodiment is different from the first embodiment.
In FIG. 2, only the case attachment portion 20 on one side, that is, the left side in FIG. 2B is L-shaped, and a leg portion 22 is provided at the tip thereof. The opposite or right case mounting portion is formed as a mounting extension 32 which extends the liquid crystal panel mounting portion 17 by a predetermined length to the right with the same width. And correspondingly, the cover 6 of the case 4
Right two straight locking members 8 in the first embodiment
Instead, a hook 33 as a locking member is formed integrally with the cover 6. That is, the hook 33 is
(A), a straight portion 34 extending from the cover 6 to the gun is provided, and a horizontal portion 35 extending inward in the horizontal direction from the lower end of the straight portion 34 is provided. The mounting extension 32 of the leaf spring 16 is placed on the hook, the back side of the leaf spring 16 is placed on the inner surface of the horizontal portion 35, and the end of the mounting extension 32 abuts on the inner surface of the straight portion 34. The leaf spring 16
Is attached to the case 4. Note that the upper surface side of the liquid crystal panel 15, that is, the display surface side 15a is received by the inner side surface 6a of the cover 6.

FIG. 4 is a longitudinal sectional view of a display device 41 according to the third embodiment. Display device 4 in this embodiment
The case 42 is a bottomed case body 4 having an open top.
3 and a cover 44 fitted into the upper opening of the case body 43. The cover 44 has a flat portion 45 that extends horizontally and a short tubular portion 46 that extends downward from the outer peripheral portion thereof. The tubular portion 46 fits into the upper opening of the case body 43. A windshield 47 made of a transparent material is attached to a central opening of the cover 44.

The liquid crystal panel 48 is fixed to the upper surface 50a of the leaf spring 50 disposed below by a double-sided adhesive tape 49 disposed on the lower surface side along the outer peripheral portion.
The leaf spring 50 is fixed to the lower surface 46 a of the tubular portion 46 of the cover 44 by a double-sided adhesive tape 51 disposed on the upper surface side along the outer peripheral portion.

FIG. 5 is a longitudinal sectional view of a display device 51 according to the fourth embodiment. Display device 5 in this embodiment
5 is different from the third embodiment only in that a screw 56 is used instead of the double-sided adhesive tape 46 in the third embodiment. Since other configurations may be the same as those of the third embodiment, common members are denoted by the same reference numerals and description thereof will be omitted.

FIG. 6 is a longitudinal sectional view of a display device 61 according to the fifth embodiment. Display device 61 of this embodiment
In the above, instead of the integral leaf spring 50 used in the display device 41 of the third embodiment, two leaf springs 6 that can be formed in substantially the same shape or a symmetric shape are used.
2, 63 are used. In the figure, the liquid crystal panel 48 is attached to the upper surface near the inner edges of the plate springs 62 and 63 by using the double-sided adhesive tape 64 so that the lower surfaces of the left and right side edges are adhered to the plate springs 62 and 63.
The leaf springs 62, 63 are fixed to the case 42 by being attached to the lower surface 46 a of the tubular portion 46 of the cover 44 by using a double-sided adhesive tape 65 on the upper surface side of each outer edge. ing. Description of the other common members will be omitted.

FIG. 7 is a longitudinal sectional view of a display device 71 according to the sixth embodiment. In this display device 71, the arrangement of the liquid crystal panel 78 and the leaf spring 79 is upside down from that in the third embodiment. That is, the liquid crystal panel 78 is disposed below the leaf spring 79, and the upper surface near the left and right side edges is fixed to the leaf spring 79 using a double-sided adhesive tape 80.
Is fixed to the leaf spring 79 by being attached to the lower surface side of the. On the other hand, the leaf spring 79 is fixed to the case 72 by attaching the upper surface near the left and right side edges to the lower surface 76 a of the tubular portion 76 of the cover 74 of the case 72 using a double-sided adhesive tape 81. An opening 79a is formed in a portion of the leaf spring 79 facing the display portion of the liquid crystal panel 78. In another embodiment, instead of the metal leaf spring 79, for example, the elastic member 79 may be formed of an elastic plastic material, and the portion facing the opening 79a may be transparent.

[0025]

As is apparent from the above description, according to the display device of the present invention, the display device is mounted and fixed on the elastic body, and the elastic body is mounted and fixed on the case. Since the elastic body only needs to be arranged on one side of the display element, it is possible to reduce the thickness of the entire display device. According to the method of mounting the display element on the case according to the present invention, the display element is positioned and temporarily fixed to the case, and after the elastic body is fixed to the case, the display element is fixed to the elastic body. Accordingly, the work of attaching and fixing the display element to the case becomes extremely simple, and the assembling work efficiency is greatly improved as compared with the related art.

[Brief description of the drawings]

FIG. 1 is a perspective view of a small portable electronic device using a display device according to a first embodiment of the present invention.

FIGS. 2A and 2B are views showing a display device according to the first embodiment of the present invention, wherein FIG. 2A is a longitudinal sectional view, and FIG.

FIGS. 3A and 3B are views showing a display device according to a second embodiment of the present invention, wherein FIG. 3A is a longitudinal sectional view, and FIG. 3B is a sectional view taken along line I-I of FIG.

FIG. 4 is a longitudinal sectional view of a display device according to the third embodiment.

FIG. 5 is a vertical sectional view of a display device according to a fourth embodiment.

FIG. 6 is a longitudinal sectional view of a display device according to a fifth embodiment.

FIG. 7 is a longitudinal sectional view of a display device according to a sixth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Portable electronic device 3 Display device 4 Case 5 Case main body 6 Cover 8, 9 Locking member 10, 11 Hole 12, 13 Positioning protrusion 15 Liquid crystal panel (display element) 16 Leaf spring (elastic member) 17 Liquid crystal panel mounting part 18 Holes 19, 20 Mounting portions 21, 22 Leg portions 24 Adhesive tape 31 Display device 16a Leaf spring 32 Mounting extension portion 33 Hook (locking member) 41 Display device 42 Case 48 Liquid crystal panel 49, 51 Double-sided adhesive tape 55 Display device 56 Screw 61 Display device 62, 63 Leaf spring 64, 65 Double-sided adhesive tape 71 Display device 79 Leaf spring 79a Opening or transparent part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Tetsuya Yamamoto 6-11-12 Honcho, Tanashi-shi, Tokyo Citizen Watch Co., Ltd. Tanashi Factory (72) Inventor Kazuko Matsumoto 2--10 Toranomon, Minato-ku, Tokyo No. 1 NTT Mobile Communication Network Co., Ltd. (72) Inventor Yuka Miyabe 2-10-1 Toranomon, Minato-ku, Tokyo F-term in NTT Mobile Communication Network Co., Ltd. 2H089 HA40 JA10 JA11 QA02 QA11 TA06 5G435 AA17 AA18 BB12 EE03 EE04 EE08 EE13 HH18 LL07

Claims (25)

[Claims] 1. A display device comprising a case and a display element fixed to the case, wherein the display element is mounted and fixed to an elastic body, and the elastic body is mounted and fixed to the case. The display device, wherein the display element is attached and fixed to the case. 2. The display device according to claim 1, wherein the display element is fixed to the elastic body by adhesion. 3. The display device according to claim 2, wherein the display element is fixed to the elastic body using an adhesive tape. 4. The display device according to claim 1, wherein the elastic body is fixed to the case by adhesion. 5. The display device according to claim 4, wherein the display device is fixed to the case with an adhesive tape. 6. The display device according to claim 1, wherein the elastic body is fixed to the case with a screw. 7. The display device according to claim 1, wherein the elastic body is formed of a thin plate, and the elastic body is formed by a locking member whose end is integrally formed with the case. Locked, viewed from the display surface side of the display element,
The movement in the vertical direction and the horizontal direction, and at least the backward direction is regulated and fixed,
Display device. 8. The display device according to claim 1, wherein the elastic body includes a plurality of elastic bodies.
The display element is fixed to the plurality of elastic bodies at both side edges in at least one of the vertical direction and the horizontal direction when viewed from the display surface side of the display element. Display device. 9. The display device according to claim 1, wherein the elastic body is provided in at least one of a vertical direction and a horizontal direction when viewed from a display surface side of the display element. A display device, comprising an extension extending outward beyond both side edges of the display element, wherein the elastic body is fixed to the case at the extension. 10. The display device according to claim 1, wherein the display element is viewed from a display surface side.
In the up-down direction and the left-right direction, the elastic body includes a vertical extension part and a horizontal extension part that extend outward beyond both side edges of the display element, and the elastic body is provided in the vertical direction. Characterized in that it is fixed to the case at least one of an extension and a lateral extension.
Display device. 11. The display device according to claim 1, wherein the display element is viewed from a display surface side.
In the up-down direction and the left-right direction, the elastic body includes a vertical extension and a horizontal extension extending outward beyond both side edges of the display element. A display device characterized by being transparent at least in a portion facing the display unit. 12. The display device according to claim 1, wherein the display element is viewed from a display surface side.
In the up-down direction and the left-right direction, the elastic body includes a vertical extension and a horizontal extension extending outward beyond both side edges of the display element. A display device characterized in that at least a portion facing a display section is cut out. 13. The display device according to claim 1, wherein the elastic body is formed of a polymer material. 14. The display device according to claim 1, wherein the elastic body is formed of a metal material. 15. The display device according to claim 1, wherein the display element comprises a liquid crystal display element. 16. A display device comprising: a case; and a display element fixed to the case, wherein the display element is attached and fixed to an elastic body, and the elastic element is attached to and fixed to the case, whereby the display element is provided. In the method of fixing the display element to the case, which is attached to the case and fixed, the display element is positioned and temporarily fixed to the case, and after the elastic body is fixed to the case, the display element is fixed. A method of fixing a display element to a case, comprising fixing the display element to a case. 17. The fixing method according to claim 16, wherein
The method of fixing a display element to a case, wherein the display element is fixed to the elastic body by adhesion. 18. The fixing method according to claim 17, wherein
The method for fixing a display element to a case, wherein the display element is fixed to the elastic body using an adhesive tape. 19. The fixing method according to claim 16, wherein the elastic body is fixed to the case by adhesion. Method. 20. The fixing method according to claim 19, wherein
The method for fixing a display element to a case, wherein the elastic body is fixed to the case with an adhesive tape. 21. The fixing method according to claim 16, wherein the elastic body is fixed to the case with a screw. Method. 22. The fixing method according to claim 16, wherein the elastic body is formed of a thin plate, and the elastic body is formed by a locking member having an end integrally formed with the case. The display element is fixed to the case, the movement being restricted in the vertical and horizontal directions, and at least the backward direction, when viewed from the display surface side of the display element. Method. 23. The fixing method according to claim 16, wherein the elastic body is formed of a polymer material. 24. The fixing method according to claim 16, wherein the elastic body is formed of a metal material. 25. The fixing method according to claim 16, wherein the display element is a liquid crystal display element.