JPH04109581U - LCD display mounting structure - Google Patents

Abstract

(57) [Summary] [Structure] By fixing the holding plate 17 to the holding plate fixing post 13 provided on the front panel 11 with fixing screws 21, the liquid crystal display 1 is held down with the first elastic piece 19. The surface thereof is brought into contact with the protrusion of the protection plate 14, and the second elastic piece 20 is used to contact the receiving portion 1 of the protection plate 14.
6 and insert the protective plate 14 into the through hole 1 of the front panel 11.
The liquid crystal display 1 is attached to the front panel 11 together with the protective plate 14 by contacting the peripheral edge of the display panel 2. [Effect] Since the gap between the liquid crystal display and the protective plate is provided by the protrusion, the influence of manufacturing variations on visual quality is almost eliminated, and stable visual quality can be obtained, as well as the adhesive process of the protective plate can be simplified. Since it is not necessary, the efficiency of the installation work is improved.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention is applicable to communication terminals such as facsimile machines and telephones. Attach the liquid crystal display along with its protective plate to the through hole provided in the front panel. This relates to the mounting structure for.

0002

[Conventional technology]

FIG. 4 is a cross-sectional plan view showing the mounting structure of a conventional liquid crystal display of this type, and FIG. FIG. 6 is a longitudinal side view and a front view of the liquid crystal display. In the figure, 1 is a liquid crystal display, and this liquid crystal display 1 has a substrate 2 and a surface of this substrate 2. A display section 4 fixedly held by a holding section 3 having an inverted L-shaped cross section on its surface; It is composed of a drive circuit section 5 for driving the display section provided on the back side of the substrate 2, etc. Here, the display section 4 has a liquid crystal section 4a, and a plurality of locations on the substrate 2 (in the figure). Notches 2a are provided at each of the four corners). 6 is a surface panel forming a part of the housing of the communication terminal, and has a through hole 7 at a predetermined position. A stepped surface is provided at the periphery of the through hole 7 on the back side, and the corresponding A predetermined hole is formed on the back side of the front panel 6 so as to correspond to the notch 2a of the substrate 2. A plurality of (four in the figure) display mounting posts 8 having an axial length are formed. There is. 9 is a transparent protection provided with a step surface corresponding to the step surface of the through hole 7 on the peripheral edge of the front side. The plate 10 is a mounting screw.

0003 In this configuration, the liquid crystal display 1 is attached to the front panel 6 as follows. be exposed. First, the stepped surface of the peripheral edge of the protection plate 9 is placed on the stepped surface of the peripheral edge of the through hole 7 of the front panel 6. Fix with adhesive. After that, the display part 4 of the liquid crystal display 1 is turned to the protection plate 9 side, and the liquid crystal display Each notch 2a provided on the substrate 2 of the device 1 is inserted into the display mounting post on the front panel 6. 8 and insert the mounting screws 10 through each notch 2a. Fasten to the mounting post 8. As a result, the liquid crystal display 1 can be mounted while maintaining a predetermined gap between the display section 4 and the protection plate 9. In this state, the contents displayed by the liquid crystal section 4a such as letters and numbers are displayed on a transparent protective plate. 9 can be seen from above in the visible range shown in FIG.

0004 However, such a conventional mounting structure has the following problems. That is, the gap between the liquid crystal display 1 and the protection plate 9 is determined by the manufacturing dimensions of the liquid crystal display 1. variations in the manufacturing dimensions of the display mounting posts 8 on the front panel 6. This is set to absorb fluctuations. On the other hand, especially the display mounting post 8 is attached to the liquid crystal display 1 as shown in FIG. It is necessary to form the display part 4 to a height equal to or higher than the dimension h, which is the thickness of the display part 4 plus the thickness of the holding part 3. Because of this, large variations in manufacturing dimensions tend to occur; therefore, the substrate of the liquid crystal display 1 2 to each display mounting post 8 with mounting screws 10, the display Due to variations in the dimensions of the mounting posts 8, the liquid crystal display 1 may be tilted with respect to the protection plate 9. It will be a long time.

[0005] As a result, the gap between the liquid crystal display 1 and the protection plate 9 becomes uneven, resulting in uneven bending. This may cause the visible position to vary, or the displayed content on the liquid crystal section 4a to appear distorted. There is a problem that stable visual quality cannot be obtained due to phenomena such as Ru. In addition, in the conventional mounting structure, the substrate 2 of the liquid crystal display 1 is attached to the mounting screw 10. Before fixing to each display mounting post 8 with Since it requires a process of gluing the protective plate 9 to the Another problem was that the efficiency of the mounting work was low.

[0006]

[Problem that the idea aims to solve]

The problem that this invention attempts to solve is that the stable Visual quality cannot be obtained, and installation work is inefficient.

[0007]

[Means to solve the problem]

In this invention, a transparent protective plate is placed in the through hole provided in the front panel, and the liquid crystal display is on the back side of the front panel so that the displayed content can be seen through the protective plate. In the mounting structure of the liquid crystal display for mounting, there is a shape on the back side of the protection plate. a plurality of protrusions, a receiving part formed at a higher height than the protrusions, and a front A press plate fixing post formed on the back side of the front panel, a first elastic piece and a first elastic piece. 2, each of which has a plurality of elastic pieces formed thereon; By fixing the holding plate to the fixing post, the liquid crystal display can be pressed with the first elastic piece. At the same time, the surface of the protective plate is brought into contact with the protrusion of the protective plate, and the second elastic piece is attached to the protective plate. Press down on the receiving part of the protection plate and bring the protection plate into contact with the periphery of the through hole in the front panel. It is characterized by In such a structure, the gap between the liquid crystal display and the protective plate is filled by a protrusion. This protrusion is taller than the conventional display mounting post. Because it is extremely small, it eliminates large manufacturing variations and provides stable visibility. You get quality. In addition, during installation work, there is no need for the process of gluing the protective plate as in the past. The protection plate and LCD display can be attached to the front panel at the same time. Improves work efficiency.

[0008]

【Example】

Examples will be described below with reference to the drawings. FIG. 1 is a cross-sectional plan view showing an embodiment of a liquid crystal display mounting structure according to the present invention. FIG. 2 is a longitudinal side view, and FIG. 3 is a front view of the liquid crystal display and the holding plate. In the figure, 1 is a liquid crystal display, which means that a conventional one can be used. 6, and therefore, this liquid crystal display 1 includes a substrate 2 and a substrate 2. a display part 4 fixedly held on the surface by a holding part 3 having an inverted L-shaped cross section; It is constituted by a drive circuit section 5 for driving a display section provided on the back side of the substrate 2, etc. The display section 4 has a liquid crystal section 4a, and cutout sections 2a are provided at the four corners of the substrate 2. However, this notch 2a is not necessarily necessary in this embodiment. There isn't.

[0009] Reference numeral 11 denotes a front panel forming the casing of the communication terminal, which has a through hole 12 and is attached to the back side. A stepped surface is provided at the peripheral edge of the through hole 12, and the external shape of this stepped surface is The outer shape of the substrate 2 is larger than that of the substrate 2. Further, on the back side of the front panel 11, there is provided a screw plate for fixing a holding plate, which will be described later. A plurality of (four in the figure) holding plate fixing posts 13 are formed. 14 is a transparent material having a step surface corresponding to the step surface of the through hole 12 on the peripheral edge of the front side. It is a protective plate, and on the back side of this protective plate 14 there is a part that avoids the liquid crystal part 4a of the liquid crystal display 1. More specifically, a plurality of (for example, four) microscopic parts contact the surface of the holding part 3. A small protrusion 15 is formed, and a receiving part 16 is formed upright around the back side. ing. The height of this receiving portion 16 is determined from the back surface of the protective plate 14 to the substrate 2 of the liquid crystal display 1. The liquid crystal is placed at the dimension L to the back surface, that is, the height of the protrusion 15 formed on the back surface of the protective plate 14. It is formed to be equal to the dimension L including the thickness excluding the drive circuit portion 5 of the display 1, and The axial length (height) of the holding plate fixing post 13 is also formed to be equal to the dimension L. ing.

0010 Reference numeral 17 denotes a holding plate, and this holding plate has a diameter approximately equal to the outer diameter of the substrate 2. A relief hole 18 is provided, and two opposing sides of the relief hole 18 are provided with first holes having different lengths. An elastic piece 19 and a second elastic piece 20 are respectively formed, and each elastic piece 19 and 20 have a bulge protruding toward the substrate 2 or claw contact portion 16 side. There is. The first elastic piece 19 is longer than the second elastic piece 20, and the liquid crystal The second elastic piece 20 corresponds to the substrate 2 of the display 1, and the second elastic piece 20 corresponds to the base plate 2 of the display 1. Corresponds to the groove 16. 21 is a fixing screw.

[0011] In this configuration, the liquid crystal display 1 is attached to the front panel 11 as follows. It will be done. First, a protective plate 14 is placed on the stepped surface of the peripheral edge of the through hole 12 provided in the front panel 11. Place the liquid crystal display 1 inside the receiving part 16 of the protective plate 14, aligning the stepped surfaces of the peripheral edge. After inserting the display section 4 so that it faces the protection plate 14 side, the presser plate 17 is One elastic piece 19 is attached to the back edge of the substrate 2, and a second elastic piece 20 is attached to the edge of the receiving part 16. The plate shown in the figure is placed in advance on the pressing plate 17. Pass the fixing screws 21 through the blank holes and fasten them to the holding plate fixing posts 13. do.

0012 This fixes the holding plate 17 to the holding plate fixing post 13 of the front panel 11. At the same time, the substrate 2 of the liquid crystal display 1 is covered with the first elastic piece 19 and the protective plate 14 The receiving portion 16 is pressed and held down by the second elastic piece 20 by their respective elastic forces. Because of this, the stepped surface of the protection plate 14 comes into contact with the stepped surface of the through hole 12 of the front panel 11. At the same time, the surface of the liquid crystal display 1, that is, the holding part 3, touches the protrusion 15 of the front panel 11. The liquid crystal display 1 is attached to the front panel 11 together with the protective plate 14 in the abutting state. Ru. Therefore, the liquid crystal display 1 has a gap between the display section 4 and the protection plate 14 that exceeds the thickness of the holding section 3. It was installed with a gap equal to the height of 15 mm, and in this state. The display contents of characters, numbers, etc. by the liquid crystal section 4a are shown in FIG. 2 from above the transparent protection plate 14. It can be seen within the visible range.

[0013] In the embodiment described above, the receiving portion 16 is formed upright around the back side of the front panel 11. However, it is assumed that it is formed only in the part corresponding to the second elastic piece 20. Good too. Further, the first elastic piece 19 and the second elastic piece 20 are formed on two sides of the through hole 12. However, they may be formed on each of the four sides, or multiple forms may be formed on each side. It is also possible to form several pieces at a time.

[0014]

[Effect of the idea]

As explained above, the present invention uses the first elastic piece formed on the holding plate to hold the liquid crystal display. Press down and bring its surface into contact with the protrusion of the protection plate, and also press it against the holding plate. The formed second elastic piece presses the receiving part of the protective plate to attach the protective plate to the surface panel. Since the installation is done by touching the periphery of the through hole, it is possible to attach the In addition to being able to absorb manufacturing variations in boards, etc., the protrusions on the back of the protective board allow The gap between the display surface and the protective plate is provided by the protrusion. is much smaller in height than traditional display mounting posts, making it difficult to manufacture large There is no variation, which eliminates the impact of manufacturing variations on visible quality. Since there is almost no sound, the effect is that stable visual quality can be obtained. In addition, during installation work, there is no need for the process of gluing the protective plate as in the past. The protection plate and LCD display can be attached to the front panel at the same time, making installation easier. This also has the effect of improving the efficiency of the work. .

[Brief explanation of drawings]

FIG. 1 is a cross-sectional plan view showing an embodiment of a mounting structure for a liquid crystal display according to the present invention.

FIG. 2 is a longitudinal side view of the embodiment of FIG. 1;

FIG. 3 is a front view of the liquid crystal display and the holding plate in FIGS. 1 and 2. FIG.

FIG. 4 is a cross-sectional plan view showing a conventional liquid crystal display mounting structure.

FIG. 5 is a longitudinal sectional side view of the conventional example shown in FIG. 4;

FIG. 6 is a front view of the liquid crystal display in FIGS. 4 and 5. FIG.

[Explanation of symbols]

1 LCD display 2 Board 3 Holding part 4 Display section 4a Liquid crystal section 11 Front panel 12 Through hole 13 Post for fixing the holding plate 14 Protective plate 15 Protrusion 16 Receiving part 17 Holding plate 19 First elastic piece 20 Second elastic piece 21 Fixing screw

Claims (1)

[Scope of utility model registration request] 1. A liquid crystal display in which a transparent protective plate is arranged in a through hole provided in a front panel, and a liquid crystal display is attached to the back side of the front panel so that the displayed contents can be seen through the protective plate. In the mounting structure of the device, a plurality of protrusions formed on the back side of the protection plate, a receiving part formed at a higher height than the protrusions, and a holding plate fixing portion formed on the back side of the front panel. It includes a post and a holding plate formed with a plurality of first elastic pieces and a plurality of second elastic pieces, and by fixing the holding plate to the holding plate fixing post, the first elastic piece can hold the liquid crystal. Pressing down the display device and bringing its surface into contact with the protrusion of the protection plate, and pressing the receiving portion of the protection board with a second elastic piece to bring the protection board into contact with the peripheral edge of the through hole in the front panel. A mounting structure for a liquid crystal display, which is characterized by: