JPS62218988A - Display unit for electronic equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electronic device display device that displays information using light emitting diodes in an operating section of an electronic device or the like.

BACKGROUND OF THE INVENTION Conventional electronic device display devices have an exterior design that uses light emitting diodes (hereinafter referred to as LEDs) when the light emitting elements are not lit.
) cannot be seen from the outside through a translucent plate attached to the display panel, and LIEf) is required to have high brightness with no difference in brightness between the plurality of lighted parts in the display section when lit.

When it is necessary to use multiple types of LEDs for display purposes, for example, some types of LEDs have a dark color when not lit, which satisfies the former requirement, but when lit, the brightness is low, and some types of L
ET) is a combination of LEDs that have a light color when not lit and cannot meet the former requirement, but have high brightness when lit.
In order to correct the visibility from the front of the panel when not lit and the brightness balance when lit, this was achieved by adding another transparent plate in addition to the semi-transparent plate and changing the thickness of the transparent plate.

This will be explained below based on the drawings. FIG. 3 is an assembled perspective view of a conventional example. In FIG. 3, different types of LEDs are wired on the printed circuit board 3, and IICDI
is a type that has a dark color when not lit and has low brightness when lit.
Lm! :D2 is a type that has a light color when not lit and has high brightness when lit.

The wired printed circuit board 3 is attached to a panel 7 with screws 6, and a semitransparent plate 9 is attached to a groove 8 provided in the panel 7. In such a case, LKDl with low brightness and LIED2 with high brightness, and LI with a difference in shade when not lit,
When used in combination with ED, the difference in brightness during operation and the light color type Lm when not lit! :I) 2 can be seen through the semi-transparent plate. Therefore, in order to display these in a well-balanced manner, another semi-transparent piece 10 is added between the semi-transparent plate 9 and the panel 7.

Furthermore, Figures 4a and b are cross-sectional views of the Mu people in Figure 3, B-B.
' This is a cross-sectional view.

Problems to be Solved by the Invention With such a conventional configuration, the cost increases due to the addition of parts for the translucent piece, the number of man-hours for attaching the translucent piece increases, and the surface scratches that occur even on the semi-transparent plate are reduced. This also occurs on the transparent piece, and there is a problem in that the appearance quality of the design deteriorates due to dust entering between the semi-transparent plate and the semi-transparent piece.

The present invention solves these problems, and by not using a translucent piece, it eliminates the cost increase due to additional parts, eliminates the number of man-hours required for installing the translucent piece, and reduces the deterioration of the appearance design quality due to scratches, dust, etc. It is an object of the present invention to provide an electronic device display device that can eliminate this problem.

Means to Solve the Problem In order to solve this problem, the present invention provides a device panel with a printed circuit board on which a plurality of types of light emitting diodes are wired for illuminating numbers, letters, etc. to indicate the operation of electronic devices. A translucent plate is attached to the front of the panel to cover the light emitting part of the attached diode and -board, and a translucent printing ink is printed on a part of the surface of the translucent plate where the diode is located. be.

Function: In response to external design requirements, in multiple types of LEDs, a translucent piece is used to correct the difference in transparency through the translucent plate when not lit and the difference in brightness when lit. Since the function can be replaced by translucent ink printed on the translucent plate at the position where correction is required, the translucent piece can be eliminated, reducing costs due to additional parts and eliminating the need for work to attach the translucent plate, eliminating scratches and dust. It is possible to eliminate deterioration in appearance design quality due to such factors.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is an assembled perspective view of an example of implementation.

Also, IL Nc in Figure 2 is CC', B- in Figure 1.
These are B' and DD' cross sections.

LIEDl, which is dark in color when not lit and has low brightness when lit, and LKD2'i, which is pale in color when not lit and has high brightness when lit, is mounted on the printed circuit board 3, and the LED mounting space is 4 and 6.
It is attached to a panel 7 with screws 6. The translucent plate attached to the groove 8 provided in the panel 7 is
To attach the LED, semitransparent ink 12 is printed entirely on the display part of the LED 2, which has high brightness and is pale in color when not lit, to the same extent as the large area of the space 6. The density of the printing ink is selected according to the brightness of the LTLD1, which has low brightness and has a dark color when not lit, and the visibility from the outside when not lit. In this embodiment, only one type of semi-transparent ink is printed using two types of LEDs, but even if there are three or more types of LEIs, this can be done by selecting the density of the semi-transparent ink according to each type. be.

This allows for the use of multiple types of LEDs to meet strict external design requirements for LED displays in electronic devices.
It can have a function of correcting the brightness from the front of the panel when not lit and the balance of brightness when lit.

Furthermore, since there is no need to use a translucent piece for brightness correction as in conventional examples, the price increases and the number of installation steps is reduced.
It is clear that the effect of eliminating deterioration in appearance design quality due to scratches, dust, etc. can be obtained.

Effects of the Invention As described above, according to the present invention, LEDs in electronic equipment
In response to the strict requirements for external design in terms of display, it is possible to improve the quality of external design using conventional printing technology relatively easily and without causing an increase in material costs.

[Brief explanation of drawings]

FIG. 1...Switching display LED, 2...Numeric display LED, 3...Printed circuit board, 9...
・Semi-transparent plate, 12...Semi-transparent ink. Name of agent: Patent attorney Toshio Nakao and one other person unknown b> h (> Fig. 4
(a-n(b)

Claims (1)

[Claims] A printed circuit board on which multiple types of light emitting diodes are wired to display numbers, letters, etc. to indicate the operation of electronic equipment is mounted on the equipment panel, and a translucent plate that covers the light emitting part of the light emitting diodes is installed on the equipment panel. 1. A display device for an electronic device, which is attached to the front surface and has a translucent printing ink printed on a part of the surface of the semitransparent plate where the light emitting diode is located.