JP2011022484A - Liquid crystal display panel and recording apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the propagation of static electricity by securing a sufficient creeping distance between a liquid crystal display cover and a liquid crystal display device without employing a countermeasure of static electricity that impairs the favorable appearance of a liquid crystal display panel. <P>SOLUTION: The liquid crystal display panel includes: a panel body 25 having a liquid crystal display window frame 23 formed therein; a liquid crystal display device 27 attached to the back face of the panel body to oppose the liquid crystal display window frame; and a liquid crystal display cover 29 positioned between the panel body and the liquid crystal display device and fixed to the panel body covering a liquid crystal display part 11 of the liquid crystal display device. The liquid crystal display panel is configured in such a manner that the liquid crystal display device is positioned by a positioning guide 49 provided on the back face of the liquid crystal display cover. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a panel main body in which a liquid crystal display window frame is formed, a liquid crystal display device attached to a back portion of the panel main body so as to face the liquid crystal display window frame, and between the panel main body and the liquid crystal display device. The present invention relates to a liquid crystal display panel provided with a liquid crystal display cover interposed therebetween and covering a liquid crystal display portion of the liquid crystal display device, and a recording apparatus including the liquid crystal display panel.

  As shown in Patent Document 1 (Japanese Patent Laid-Open No. 2008-3304), a conventional liquid crystal display panel is provided with a positioning structure for a liquid crystal display device on a panel body. FIG. 9A is an enlarged plan view showing the periphery of the positioning structure of the liquid crystal display panel according to the conventional example, and FIG. 9A is a sectional view taken along line bb in FIG. As shown in FIG. 9, the liquid crystal display cover 105 provided between the liquid crystal display device 101 and the panel main body 103 is partially cut away at a portion that interferes with the positioning structure 107 of the panel main body 103. The structure which avoids interference with the positioning structure 107 was taken.

  However, if the notch 109 is provided in the liquid crystal display cover 105 as described above, the creeping distance for preventing static electricity indicated by C in FIG. 9 becomes short, and the liquid crystal display device 101 is charged with static electricity. As a result, the liquid crystal display device 101 may be damaged. Therefore, conventionally, antistatic parts 111 such as double-sided tape are attached to the static electricity propagation part, or the liquid crystal display cover is enlarged and attached from the front side of the panel body, and black solid printing is applied to the outside of the liquid crystal display part. To prevent static electricity and maintain a minimum aesthetics.

  However, the pasting work of the above-mentioned anti-static component takes time, increases the material cost, and does not look good. Similarly, a structure in which a large liquid crystal display cover is attached from the front side of the panel main body is not preferable in view of the aesthetics of the liquid crystal display panel, and the black solid printing applied to the outer portion of the liquid crystal display portion is extra.

  Therefore, some aspects of the present invention provide a sufficient creepage distance between the liquid crystal display cover and the liquid crystal display device without solving the problems described above, without taking electrostatic measures that impair the aesthetics of the liquid crystal display panel. It is possible to provide a liquid crystal display panel and a recording apparatus including the liquid crystal display panel, which can prevent the propagation of static electricity and prevent the propagation of static electricity, and can reliably position and fix the liquid crystal display device.

  In order to solve the above-described problems, a recording apparatus according to a first aspect of the present invention is attached to a panel body on which a liquid crystal display window frame is formed, and a back surface portion of the panel body so as to face the liquid crystal display window frame. A liquid crystal display device; and a liquid crystal display cover that is positioned between the panel main body and the liquid crystal display device and is fixed to the panel main body and covers a liquid crystal display unit of the liquid crystal display device, and positioning the liquid crystal display device Is configured to be performed by a positioning guide provided on the back surface of the liquid crystal display cover.

  According to this aspect, since the positioning of the liquid crystal display device is executed by the positioning guide provided on the back surface of the liquid crystal display cover, the liquid crystal display cover required when the positioning guide is provided for the panel body is provided. A notch is not required. Accordingly, since the creepage distance between the liquid crystal display cover and the liquid crystal display device is increased by not providing the notch, the propagation of static electricity to the liquid crystal display device can be prevented without providing a separate antistatic component. Can do.

  According to a second aspect of the present invention, in the liquid crystal display panel according to the first aspect, the liquid crystal display device is fixed to the panel body via a fixing base protruding from the back surface of the liquid crystal display cover. It is characterized by being configured.

  According to this aspect, since the fixing of the liquid crystal display device to the panel body is performed via the fixing base protruding from the back surface of the liquid crystal display cover, the mounting boss provided to the panel body In addition, when the liquid crystal display device is directly fixed, the notched portion of the liquid crystal display cover, which has been necessary in the prior art, becomes unnecessary. Accordingly, as in the first aspect, the creepage distance between the liquid crystal display cover and the liquid crystal display device is increased by the amount of not providing the notch, and therefore, an electrostatic liquid crystal display device can be provided without providing a separate electrostatic countermeasure component. Propagation to can be prevented.

  According to a third aspect of the present invention, in the liquid crystal display panel according to the second aspect, a height of the fixing base is formed between the liquid crystal display unit of the liquid crystal display device and the back surface of the liquid crystal display cover. It is set so that it may be performed.

In the structure in which the liquid crystal display unit of the liquid crystal display device is closely attached to the back surface of the liquid crystal display cover, interference fringes are generated. Therefore, a desired gap is formed between the liquid crystal display unit and the back surface of the liquid crystal display cover. Thus, the generation of the interference fringes is prevented.
According to this aspect, in addition to the function and effect of the second aspect, a necessary height between the liquid crystal display unit and the back surface of the liquid crystal display cover can be obtained by forming the fixed base with a predetermined height. The gap can be set easily, and the problem of the interference fringes can be easily prevented.

  According to a fourth aspect of the present invention, in the liquid crystal display panel according to any one of the first to third aspects, the liquid crystal display cover is fitted into a liquid crystal display window frame of the panel body. The positioning guide is provided in an outer space of the visible area facing the liquid crystal display portion of the liquid crystal display device on the back surface of the cover main body portion. The visible guide area of the liquid crystal display unit of the liquid crystal display device is located outside the liquid crystal display window frame of the panel body by the positioning guide, and the operation area of the liquid crystal display unit of the liquid crystal display device is It is positioned so as to be located inward.

  According to this aspect, in addition to the function and effect of any one of the first to third aspects, the liquid crystal display cover is positioned relative to the panel body only by the structure of the liquid crystal display cover, and the liquid crystal display cover The positioning of the liquid crystal display device can be performed at the same time, and the liquid crystal display unit of the liquid crystal display device can be accurately aligned and attached to a predetermined position with respect to the liquid crystal display window frame of the panel body.

  A recording apparatus according to a fifth aspect of the present invention is a recording apparatus including a liquid crystal display panel, and the liquid crystal display panel is a liquid crystal display according to any one of the first to sixth aspects. It is characterized by being a panel.

  According to this aspect, it is possible to prevent the propagation of static electricity by securing a sufficient creepage distance between the liquid crystal display cover and the liquid crystal display device without performing electrostatic countermeasures that impair the appearance of the liquid crystal display panel. It is possible to provide a recording apparatus including a liquid crystal display panel capable of reliably positioning and fixing the liquid crystal display apparatus.

1 is a perspective view showing an appearance of an ink jet printer equipped with a liquid crystal display panel according to an embodiment of the present invention. 1 is a perspective view showing a liquid crystal display panel according to an embodiment of the present invention. The perspective view from the back side which shows the state which decomposed | disassembled the liquid crystal display panel which concerns on the Example of this invention. The perspective view from the back side which shows the assembly state of the liquid crystal display panel which concerns on the Example of this invention. The rear view which shows the liquid crystal display panel which concerns on the Example of this invention. The front view which shows the positional relationship of the liquid crystal display window frame formed in the panel main body of the liquid crystal display panel which concerns on the Example of this invention, and the liquid crystal display part of a liquid crystal display device. Sectional drawing in the AA in FIG. 5 which shows the liquid crystal display panel which concerns on the Example of this invention. The top view (a) which expands and shows the positioning guide periphery of the liquid crystal display panel which concerns on the Example of this invention, (a) bb sectional drawing (b) in a figure. The top view (a) which expands and shows the positioning structure periphery of the liquid crystal display panel which concerns on a prior art example, (a) bb sectional drawing (b) in a figure.

  Embodiments of a liquid crystal display panel and a recording apparatus including the liquid crystal display panel according to the present invention will be described below. First, an ink jet printer 1 as shown in FIG. 1 will be taken up as an embodiment for implementing the recording apparatus of the present invention, and its outline will be described.

The illustrated inkjet printer 1 is a multifunctional composite inkjet printer in which a scanner 3 and a printer 4 are integrated.
The ink jet printer 1 functions as a feed opening cover that closes a feed opening (not shown) when not in use, and is used when the recording material is expanded to set a recording material (hereinafter also referred to as paper). This is a back-fed inkjet printer including a recording material support (hereinafter also referred to as a paper support) 7 that functions as a holding member.

  An upper surface portion 6 of the housing 5 of the ink jet printer 1 has a flat bed type scanner 3 and, as an example, a paper support 7 of a rotary opening and closing type that covers a feeding opening 9 (not shown) on the rear side of the scanner 3. Is provided.

  Also, inside the housing 5 directly under the feeding opening covered by the paper support 7, the sheets set on the paper support 7 are picked up one by one in order from the top one, and are downstream in the transport direction. An automatic feeding device (not shown) that automatically feeds the recording execution unit is provided.

As an example, a tilt-type liquid crystal display panel 21 of the present invention, which will be described later, is provided on an upper portion of the front surface portion 8 of the housing 5. The liquid crystal display unit 11 constituted by a liquid crystal display is provided so as to face the center of the surface appearing on the appearance of the liquid crystal display panel 21. Further, on the left and right sides of the liquid crystal display unit 11, a plurality of operation buttons 13, 13,...
A plurality of openings 15 for inserting external media such as different types of memory cards are provided at the center of the front surface 8 of the housing 5 below the liquid crystal display panel 21.

  Further, the lower portion of the front surface portion 8 of the housing 5 below the opening portion 15 is rotated so as to serve as a discharge opening (not shown) that discharges the paper after recording and a discharge opening cover that covers the discharge opening. A free discharge stacker 17 is provided.

  The configuration of the liquid crystal display panel 21 applied to the ink jet printer 1 is a characteristic configuration of the present invention. Hereinafter, the configuration of the liquid crystal display panel 21 and the operation mode thereof will be specifically described. To do.

[Example]
The liquid crystal display panel 21 includes a panel main body 25 in which a liquid crystal display window frame 23 is formed, a liquid crystal display device 27 attached to the back surface of the panel main body 25 so as to face the liquid crystal display window frame 23, and the panel main body 25. And a liquid crystal display cover 29 that covers the liquid crystal display unit 11 of the liquid crystal display device 27 and is interposed between the liquid crystal display device 27 and the liquid crystal display device 27.

  As shown in FIGS. 1 and 2, the panel main body 25 is a member having a rectangular shape in front view that is long in the width direction X. As an example, the liquid crystal display window frame 23 having a rectangular shape in a front view is opened at the center of the front plate 31 of the panel main body 25, and a plurality of pieces supported by elastic pieces on the left and right sides of the liquid crystal display window frame 23. The operation button 13 is formed integrally with the panel body 25.

As shown in FIGS. 3, 4, and 5, a plurality of attachments for attaching a button switch (not shown) or a lower panel (not shown) attached to the back side of the panel body 25 on the back surface of the front plate 31 of the panel body 25. Boss 33, 33, ... is provided.
As an example of the liquid crystal display window frame 23, a fixing boss 35 for fixing a liquid crystal display device 27 and a liquid crystal display cover 29, which will be described later, to the panel body 25 is taken as an example at positions near the center of the upper edge and the lower edge. Two are provided on the back surface of the front plate 31 of the panel body 25.

  As shown in FIG. 6, the liquid crystal display device 27 includes a liquid crystal display unit 11 having a visible area 37 and an active area 39, and as shown in FIGS. It is basically configured by including a support frame 41 that supports the liquid crystal display unit 11. The liquid crystal display unit 11 includes an LCD main body 43, an LCD substrate 45 disposed on the back surface of the LCD main body 43, and an FFC (flexible flat cable) 47 extending from the LCD substrate 45.

  The support frame 41 has four positioning corner portions 51, 51, 51 positioned by four positioning guides 49, 49, 49, 49 provided at four corner portions of the liquid crystal display cover 29 described later. , 51 is a rectangular frame-shaped support member.

  In addition, the support frame 41 has two rectangular flat plate-like shapes as an example projecting in the vertical direction Z at a position facing the fixed bosses 35, 35 of the panel body 25 while being positioned by a liquid crystal display cover 29 described later. Fixing portions 53 and 53 are provided. Each fixing portion 53 is provided with a mounting hole 55 having the same axis as that of the fixing boss 35.

The liquid crystal display cover 29 is a rectangular flat plate member formed of a colorless transparent or colored transparent synthetic resin material having excellent visibility.
Specifically, the liquid crystal display cover 29 includes a thick fitting portion 57 that fits into the liquid crystal display window frame 23 of the panel main body 25, and a thin cover main body portion 59 that is larger than the liquid crystal display window frame 23. Among them, a positioning guide 49 and a fixing base 61 which are characteristic structures of the present invention are provided on the back surface of the cover main body 59.

The positioning guide 49 and the fixing base 61 are provided in the outer space of the visible area 37 facing the liquid crystal display unit 11 of the liquid crystal display device 27 on the back surface of the cover main body 59.
Among these, the positioning guide 49 is provided at the four corners of the cover main body 59, and is associated with the four positioning corners 51, 51, 51, 51 in the support frame 41 of the liquid crystal display device 27 as described above. In addition, the liquid crystal display device 27 is positioned.

  The positioning guide 49 has an L-shaped cross section in which two flat projections are integrated at the corner portion of the cover main body 59 so as to simultaneously support the two outer surfaces intersecting the positioning corner portion 51. It is comprised by the protrusion of predetermined height.

  On the other hand, the fixing base 61 is provided at a position corresponding to the two fixing bosses 35 and 35 raised from the back surface of the panel body 25 and is vertically raised from the back surface of the cover body portion 59. The rectangular flat plate-like rising portion 63 and a rectangular flat plate-like protruding portion 65 that horizontally protrudes in the vertical direction Z from the upper end of the rising portion 63 are integrally provided.

  The overhanging portion 65 is provided with a fixing hole 67 at a position where the two fixed bosses 35 and 35 raised from the back surface of the panel body 25 are aligned with the axis. 3 and 4, the overhanging portion 65 of the liquid crystal display cover 29 is positioned on the fixed boss 35 of the panel body 25, and the liquid crystal display device 27 is supported on the overhanging portion 65. The mounting hole 55 and the fixing hole 67 are penetrated by the two fixing screws 69 and 69 in a state where the fixing portion 53 provided for the frame 41 is positioned. Furthermore, the liquid crystal display device 27 and the liquid crystal display cover 29 are fixed to the panel body 25 by fastening them together.

  The height H of the fixed base 61 is such that a gap S necessary for preventing interference fringes is formed between the liquid crystal display unit 11 of the liquid crystal display device 27 and the back surface of the liquid crystal display cover 29. Is set.

  The positioning and fixing of the liquid crystal display device 27 with respect to the panel body 25 is performed by fitting the liquid crystal display window frame 23 formed on the panel body 25 from the back side. The liquid crystal display device 27 and the liquid crystal display cover 29 are integrated with each other via a liquid crystal display cover 29 including guides 49, 49, 49, 49 and two fixing bases 61, 61.

  Further, as shown in FIG. 6, the visible area 37 in the liquid crystal display unit 11 is outward with respect to the liquid crystal display window frame 23 of the panel body 25 by the four positioning guides 49, 49, 49, 49. The operation area 39 in the liquid crystal display unit 11 is positioned so as to be located inward.

  As shown in FIG. 8, when the liquid crystal display panel 21 having such a configuration is adopted, the cut-off shown in FIG. 9 required in the conventional example in which the positioning structure 107 is provided for the panel main body 103 is used. The notch 109 is not necessary, and the creeping distance C is longer in the liquid crystal display panel 21 according to the present embodiment because the notch 109 is not formed.

  In the case of the present embodiment, since the creeping distance C is increased, the static electricity is prevented from propagating from the panel body 25 side to the liquid crystal display device 27 side. Black solid printing outside the liquid crystal display portion, which is required when the structure for attaching the anti-static component 111 such as a tape or the structure in which the liquid crystal display cover 29 is enlarged and attached from the front side of the panel body 25, is not required.

[Other Examples]
The liquid crystal display panel 21 according to the present invention and the recording apparatus 1 provided with the liquid crystal display panel 21 are basically configured as described above, but are partially configured within the scope of the present invention. Of course, it is possible to make changes or omissions.

  For example, the shape, number, and arrangement of the positioning guide 49 and the fixing base 61 provided on the back surface of the cover main body 59 of the liquid crystal display cover are not limited to those of the above-described embodiment, but may be the shape, size, etc. Correspondingly, it can be appropriately changed.

  Further, in addition to the positioning structure based on the engagement between the positioning guide 49 and the positioning corner portion 51, it is possible to adopt a positioning structure based on the fitting between the positioning hole and the positioning pin.

  In addition, the liquid crystal display panel 21 of the present invention is not limited to the ink jet printer 1, but may be applied to other recording devices such as laser printers, facsimiles, copiers, and other various electronic devices and apparatuses equipped with a liquid crystal display panel. Applicable.

1 Inkjet printer (recording device), 3 Scanner,
4 printer, 5 housing,
6 upper surface, 7 paper support,
8 front part, 11 liquid crystal display part,
13 operation buttons, 15 openings,
17 discharge stacker, 21 liquid crystal display panel,
23 LCD window frame, 25 Panel body,
27 liquid crystal display device,
29 Liquid crystal display cover, 31 Front plate,
33 Mounting boss, 35 Fixed boss,
37 visible area, 39 operating area,
41 support frame, 43 LCD body,
45 LCD board, 47 FFC,
49 Positioning guide, 51 Positioning corner,
53 fixing part, 55 mounting hole,
57 fitting part, 59 cover body part,
61 fixed base, 63 rising part,
65 overhanging part, 67 fixing hole,
69 fixing screw, X width direction,
Z vertical direction, C creepage distance,
S clearance, H height

JP 2008-3304 A

Claims (5)

A panel body on which a liquid crystal display window frame is formed;
A liquid crystal display device attached to the back surface of the panel body so as to face the liquid crystal display window frame;
A liquid crystal display cover that is positioned between the panel main body and the liquid crystal display device and is fixed to the panel main body and covers a liquid crystal display portion of the liquid crystal display device;
The liquid crystal display panel is configured such that positioning of the liquid crystal display device is performed by a positioning guide provided on a back surface of the liquid crystal display cover. The liquid crystal display panel according to claim 1,
The liquid crystal display panel, wherein the liquid crystal display device is fixed to the panel body through a fixing base protruding from the back surface of the liquid crystal display cover. The liquid crystal display panel according to claim 2,
The liquid crystal display panel according to claim 1, wherein a height of the fixing base is set so that a gap is formed between a liquid crystal display unit of the liquid crystal display device and a back surface of the liquid crystal display cover. In the liquid crystal display panel of any one of Claims 1-3,
The liquid crystal display cover is
A fitting portion that fits into the liquid crystal display window frame of the panel body;
A cover body larger than the liquid crystal display frame,
The positioning guide is provided in the outer space of the visible area where the liquid crystal display unit of the liquid crystal display device faces out of the back surface of the cover main body,
With the positioning guide, the visible area in the liquid crystal display unit of the liquid crystal display device is positioned outward with respect to the liquid crystal display window frame of the panel body, and the operation area in the liquid crystal display unit of the liquid crystal display device is inward. A liquid crystal display panel characterized by being positioned so as to be positioned. A recording apparatus including a liquid crystal display panel,
The recording apparatus according to claim 1, wherein the liquid crystal display panel is the liquid crystal display panel according to claim 1.

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