JPH10143078A - Liquid crystal display - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent thread lint or the like that impairs aesthetic appearance from peeping through a display window of a liquid crystal display device. A display window (11) is made of a transparent member, and a frame-shaped opaque print (15) is applied to the entire periphery of an outer portion of the display window except for a required area at the center of the rear surface of the display window. A frame-shaped double-sided adhesive tape 16 that is aligned with the peripheral edge and has a width smaller than the width of the opaque print is attached, and the display window is attached to the electronic device case 12 via the double-sided adhesive tape. The difference between the narrow widths of the double-sided adhesive tape and the double-sided adhesive tape functions as an eaves. Even if the double-sided adhesive tape adheres to the thread dirt or the like, the thread dirt or the like does not enter the see-through range of the display window.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device used as a display means of various electronic devices such as a portable telephone and a portable bell receiver, and more particularly to a display window of the liquid crystal display device.

[0002]

2. Description of the Related Art In recent years, LCDs (Liquid Crystal D) have been used in portable telephones and portable electric bell receivers.
It is common to have a liquid crystal display device which is a display function using display.

First, a display window of a conventional liquid crystal display device will be described with reference to FIGS.

A display window 1 of a liquid crystal display device is fitted to a frame edge 4 of a window hole 3 formed in an electronic device case 2. The display window 1 is made of a transparent member made of acrylic resin or the like so that the display contents of a liquid crystal display panel (not shown) disposed in the electronic device case 2 can be visually confirmed through the display window 1. .

[0005] A frame-shaped opaque print 5 is provided over the entire outer periphery of the back surface of the display window 1 over the entire circumference, and the portion where the opaque print 5 is applied is substantially the same as the opaque print 5. A frame-shaped double-sided adhesive tape 6 having the same shape and width is attached, and the display window 1 is attached and fixed to the frame edge 4.

[0006] The see-through range of the display window 1 is a range excluding the opaque print 5 portion and the portion where the double-sided adhesive tape 6 is attached, and is a range indicated by YZ in FIG.

[0007]

In the above-described display window 1 of the liquid crystal display device, during the assembling process of mounting the display window 1 on the electronic device case 2 and the like, the thread dust 7 floating in the air and the like are exposed on the both sides. As shown in FIG. 8, the thread dust 7 may adhere to the adhesive tape 6 and leak out into the see-through range of the display window 1, which may impair the aesthetic appearance of the product.

[0008] In addition, as for the defective appearance product, it is necessary to repair it, so that the time and labor required for the repair are required, and the productivity is lowered.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to prevent a lint or the like that impairs the aesthetic appearance of a product from being seen through a display window of a liquid crystal display device.

[0010]

According to the present invention, a display window is made of a transparent member, and a frame-shaped opaque printing is applied to the entire outer periphery of the display window except for a required area at the center of the rear surface of the display window. A liquid crystal in which a frame-shaped double-sided adhesive tape that is aligned with the outer frame peripheral edge of the opaque print and has a width smaller than the width of the opaque print is attached, and the display window is attached to the electronic device case via the double-sided adhesive tape. The present invention relates to a display device.

The difference between the wide width of the opaque print and the narrow width of the double-sided adhesive tape functions as an eaves. Absent.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

The display window 11 of the liquid crystal display device is made of a transparent member made of acrylic resin or the like. The display window 11 is perforated in an electronic equipment case 12 and fits into a frame edge 14 formed in a window hole 13 having substantially the same shape as the display window 11. Dress. The frame edge 14 is a frame-shaped falling edge that is lower than the surface of the electronic device case 12 by the thickness of the display window 11, and the electronic device case is fitted by fitting the display window 11. 12 and the display window 11 are flush.

A liquid crystal display (not shown) is provided in the electronic device case 12 so that the display contents of the liquid crystal display can be visually confirmed through the display window 11.

A frame-shaped opaque print 15 is applied to the outer portion of the back surface of the display window 11 over the entire circumference in a required width, and the portion where the opaque print 15 is applied has the same outer shape as the display window 11 and the width. A frame-like double-sided adhesive tape 16 having a width smaller than that of the opaque print 15 is attached, and the display window 11 is attached and fixed to the frame edge 14.

At this time, as shown in FIG. 2, the outer peripheral edge of the double-sided adhesive tape 16 coincides with the outer peripheral edge of the opaque print 15, and the inner frame indicated by W'X 'of the double-sided adhesive tape 16 is formed. Is set to be wider than the inner frame indicated by WX of the opaque print 15, that is, the see-through range of the display window 11.

As described above, by forming the frame shape of the double-sided adhesive tape 16 into a thin frame shape in which the outer peripheral edge of the opaque print 15 matches the outer peripheral edge, the inner peripheral edge of the opaque print 15 and the double-sided adhesive A required space can be provided between the tape 16 and the peripheral edge of the inner frame, and the inner frame portion of the opaque print 15 is like an eave (see FIG. 3).

Accordingly, as shown in FIG. 4, the thread dust 17 floating in the air during the assembly process is
Even when it adheres to the display window 11, the thread dust 17 and the like are eroded into the see-through range of the display window 11, and the thread dust 17 and the like do not look through the front of the display window 11.

[0019]

As described above, according to the present invention, in a process of assembling an electronic device case, even if thread dust and the like floating in the air adhere to the double-sided adhesive tape, they cannot be seen from the see-through range of the display window. The appearance is not impaired. In addition, the number of repair steps due to poor appearance is reduced, so that productivity is improved.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view of an embodiment of the present invention.

FIG. 2 is a plan view showing the back surface of the display window according to the present invention.

FIG. 3 is a sectional view of the front display window.

FIG. 4 is a partially enlarged cross-sectional view of the front display window.

FIG. 5 is an explanatory perspective view of a conventional example.

FIG. 6 is a plan view showing a back surface of a display window of a conventional example.

FIG. 7 is a cross-sectional view of the front display window.

FIG. 8 is a partially enlarged cross-sectional view of the front display window.

[Explanation of symbols]

 Reference Signs List 11 display window 12 electronic device case 13 window hole 14 frame edge 15 opaque printing 16 double-sided adhesive tape 17 thread dust

Claims (1)

[Claims] 1. A display window comprising a transparent member, a frame-shaped opaque print is applied to the entire periphery of an outer portion excluding a required area in the center of the back surface of the display window, and the outer frame periphery of the opaque print is applied to the opaque print portion. A liquid crystal display device comprising: a frame-like double-sided adhesive tape that is aligned with an edge and has a width smaller than the width of the opaque print, and the display window is attached to an electronic device case via the double-sided adhesive tape.