JPH0962400A - Information processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the strength of a cabinet, to thin a back cover and to lighten an information processor by providing a brace type rib on the inner surface of the back cover which holes a liquid crystal element, etc., and reinforcing it. SOLUTION: In the information processor equipped with a display part 10 having the back cover 5 which holds by housing a plate shaped liquid crystal element 1, a light transmission body 2 and a fluorescent tube 3, a brace type cover reinforcing rib(rhombic grating type rib) 6 is provided on the internal surface (α) side of the back cover 5. The rhombic grating type rib 6 is provided in a form of bracing protruded from the internal surface (α) of the back cover 5 in a form of a rhombic, and the strength of the plate surface of the back cover 5 is reinforced with the rib 6. Therefore, the back cover 5 equipped with such rhombic grating type rib 6 is handily deformed bevies of its high resistance to an external force in a direction of arrowhead B even when it is formed thinly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an invention for increasing the strength of a casing of a small information processing device such as a notebook personal computer.

[0002]

2. Description of the Related Art FIGS. 4 (a), 4 (b) and 4 (c) are notebook personal computers (hereinafter referred to as information processing devices).
It is a diagram showing a conventional structure of (a) is a schematic perspective view,
(b) is a schematic front view of a display part, (c) is the XX sectional view taken on the line. In the figure, 1 is a liquid crystal display element, 2 is a light guide that constitutes a backlight, 3 is a fluorescent tube that allows light rays to enter the light guide 2, 40 is an inverter that supplies power to the fluorescent tube 3, and 5 is these liquid crystals. A back cover for accommodating and holding the display element 1, the light guide 2, the fluorescent tube 3 and the inverter 40, 50 is a decorative cover arranged so as to cover the peripheral portion of the liquid crystal display element 1, the fluorescent tube 3 and the inverter 40, 10 is a display unit composed of these components, 20 is an input unit equipped with a keyboard unit 20a, and 60 is an input unit.
A hinge for connecting the display 20 and the display unit 10 to each other so as to be openable and closable in the direction of arrow AA 'is shown respectively.

As shown in FIG. 4 (a), this information processing apparatus performs input while the display unit 10 is open in the direction of arrow A and closes the display unit 10 in the direction of arrow A '. Carry.

[0004]

In recent information processors, there is a tendency to reduce the thickness of the back cover 5 in order to realize weight reduction. Therefore, when an external force in the direction of arrow B acts on the back cover 5, the back cover 5 bends in the direction of the inner surface α, and the light guide 2, the liquid crystal display element 1, and the fluorescent tube 3 are formed.
Occasionally, there were accidents that damaged the.

The present invention was devised in order to prevent the occurrence of such an accident, and provides an information processing apparatus in which the strength of the housing is increased by providing reinforcing ribs in the shape of braces on the inner surface of the back cover. The purpose is to provide.

[0006]

As shown in FIGS. 1 (a), 1 (b) and 1 (c), an information processing apparatus according to the present invention includes a substantially plate-shaped liquid crystal display element 1 and the liquid crystal display element 1. The light guide 2 arranged so as to contact the plate surface, the fluorescent tube 3 arranged along the side end surface of the light guide 2, the liquid crystal display element 1, the light guide 2 and the fluorescent tube 3. In an information processing apparatus having a display unit 10 having a back cover 5 for accommodating and holding, a bracing-like cover reinforcing rib 6 is provided on the inner surface α side of the back cover 5.
It is a structural feature that (hereinafter, referred to as a diamond-shaped lattice rib 6) is provided.

This diamond-shaped lattice rib 6 is shown in FIGS. 1 (b) and 1 (c).
As shown in FIG. 5, since the inner surface α of the back cover 5 is provided in a braided shape so as to be convex in a diamond shape, the strength of the plate surface of the back cover 5 is reinforced by this. Therefore, the back cover 5 having the diamond-shaped lattice ribs 6 has a strong resistance to an external force in the direction of the arrow B even if the back cover 5 has a small thickness, so that the back cover 5 does not easily bend.

[0008]

1 (a), 1 (b) and 1 (c) are views showing an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are views showing a modification of the present invention. 3 (a), 3 (b), 3 (c), 3 (d) and 3 (e) are views showing an application example of the present invention, the same parts as in FIG. There is.

An embodiment of the present invention will be described below with reference to FIGS. 1 (a), 1 (b) and 1 (c). Since the present invention is an invention for improving the mechanical strength of the display unit that constitutes the information processing apparatus, the description of the embodiments will be given for the display unit.

The display unit 10 according to the present invention is shown in FIGS. 1 (a) and 1 (b).
And (c), a plate-shaped liquid crystal display element 1 and a light guide 2 arranged so that the plate surface is in contact with the liquid crystal display element 1,
It comprises a fluorescent tube 3 arranged along the side end surface of the light guide 2, and a substantially dish-shaped back cover 5 for accommodating and holding the liquid crystal display element 1, the light guide 2 and the fluorescent tube 3. Display unit 10
In the information processing apparatus including the above, a diamond-shaped lattice rib 6 is provided on the inner surface α side of the back cover 5 in which brace-shaped protrusions (protrusions) are crossed in a diamond shape.
Although the cross-sectional size of the diamond-shaped lattice ribs 6 and the formation interval thereof are not specified, the strength of the back cover 5 is significantly improved by providing the diamond-shaped lattice ribs 6. Therefore, when an external force in the direction of arrow B acts on the back cover 5 [see FIG. 1 (a)], the back cover 5 bends in the direction of arrow B and the light guide 2, the liquid crystal display element 1, and the fluorescent tube 3 are deflected. Accidents such as breakage are inevitably avoided.

Next, a modification of the present invention will be described with reference to FIGS. 2 (a) and 2 (b). In this modified example, as shown in FIGS. 2 (a) and 2 (b), a cover reinforcing rib provided on the inner surface of the back cover 5A has a ring-shaped (annular) annular rib 15 arranged at a substantially central portion thereof. The diamond shaped ribs 6 are arranged outside the annular rib 15 to form a central concentrated load countermeasure type rib 30.

The central concentrated load countermeasure type rib 30 has a rib structure which was devised in view of the fact that when the back cover 5A is pressed from the direction of the arrow B, stress concentrates on the central portion of the pressed surface and is distorted to the maximum. Therefore, when this rib structure is applied, the stress concentrated in the central portion is absorbed by the annular rib 15, so that the amount of strain in the central portion that occurs when the back cover 5A is pressed in the direction of arrow B can be suppressed to a minimum. it can.

As is apparent from the above description, in the rib structure disclosed in this modification, the arrow B added to the back cover 5A by disposing the braided diamond-shaped lattice ribs 6 around the annular rib 15. This is a rib structure that avoids concentration of external force in the direction in the central portion (inside the annular rib 15). Therefore, when this modification is applied, the strength of the back cover 5A is significantly improved.

Next, one application example of the present invention will be described with reference to FIGS. 3 (a), 3 (b), 3 (c), 3 (d) and 3 (e). It should be noted that these two application examples were created in order to specifically protect a fluorescent tube that is fragile in strength.

First, the first application example shown in FIGS. 3A, 3B and 3C will be described. This first application example is characterized in that the fluorescent tube reinforcing rib 7 is provided in parallel with the fluorescent tube 3 on the inner surface α side of the back cover 5B. By providing the fluorescent-tube-reinforcing ribs 7 in the shapes shown in FIGS. 3 (a), (b), and (c), the phenomenon that the back cover 5B is bent by an external force is avoided, so that the fluorescent tube 3 is not broken. It will inevitably decrease.

Next, a second application example shown in FIGS. 3D and 3E will be described. This second application example is characterized in that a corrugated plate-shaped fluorescent tube reinforcing rib 17 is provided in parallel with the fluorescent tube 3 on the inner surface α side of the back cover 5C. Since this fluorescent tube reinforcing rib is corrugated as shown in Figs. 3 (d) and (e), it is strong against external force in the direction parallel to the plane and also strong against external force in the direction orthogonal to the plane. . Therefore, in the case of the back cover 5C provided with the corrugated plate-shaped fluorescent tube reinforcing ribs 17, the fluorescent tube 3
There is almost no accident that breaks.

[0017]

As described above, the information processing apparatus according to the present invention has a structure in which brace-shaped ribs are provided on the inner surface of the back cover for accommodating and holding the liquid crystal display element, the fluorescent tube and the like to reinforce the ribs. The phenomenon in which the back cover bends inward when an external force is applied to the back cover is mitigated by the action of the oblique cross ribs. Therefore, by applying this structure, the back cover can be thinned, and the information processing apparatus can be reduced in weight.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention,

FIG. 2 is a view showing a modified example of the present invention,

FIG. 3 is a diagram showing an application example of the present invention,

FIG. 4 is a diagram showing a conventional structure of an information processing device,

[Explanation of symbols]

 1 Liquid Crystal Display Element 2 Light Guide 3 Fluorescent Tube 5, 5A, 5B, 5C Back Cover 6 Rhombic Lattice Rib 7 Fluorescent Tube Reinforcing Rib 10 Display 15 Annular Rib 17 Corrugated Fluorescent Reinforcing Rib 20 Input 20a Keyboard 30 Central concentrated load countermeasure rib 40 Inverter 50 Decorative cover

Claims (5)

[Claims] 1. A substantially plate-shaped liquid crystal display element, a light guide arranged so that a plate surface is in contact with the liquid crystal display element, and a fluorescent tube arranged along a side end surface of the light guide. A back cover that houses and holds these liquid crystal display element, light guide, and fluorescent tube;
An information processing apparatus including a display section including: an information processing apparatus, wherein a cover reinforcing rib having a braid shape is provided on an inner surface side of the back cover. 2. The information processing apparatus according to claim 1, wherein the cover reinforcing rib provided on the rear cover side is a diamond-shaped lattice rib protruding in a rhombus from the inner surface of the rear cover. 3. A cover reinforcing rib provided on an inner surface of the back cover is a central concentrated load countermeasure rib in which an annular rib is arranged at a substantially central portion and the rhombus lattice rib is arranged outside the annular rib. The information processing apparatus according to claim 1, wherein the information processing apparatus is provided. 4. A substantially plate-shaped liquid crystal display element, a light guide arranged so that the plate surface is in contact with the liquid crystal display element, and a fluorescent tube arranged in parallel to a side end surface of the light guide. In an information processing apparatus having a display section including a liquid crystal display element, a light guide, and a dish-shaped back cover that houses and holds a fluorescent tube, a fluorescent tube is reinforced in parallel with the fluorescent tube. An information processing apparatus, wherein a rib is provided on the inner surface of the back cover. 5. The corrugated plate-shaped fluorescent tube reinforcing rib, in which the fluorescent lamp reinforcing rib is formed in a corrugated plate shape, is provided on the inner surface of the back cover in a form parallel to the fluorescent tube. Information processing equipment.