Seven-segment display apparatus

A technology for a display device and a display part, which is applied to identification devices, instruments, etc., can solve the problems of inability to ensure the uniformity of the brightness of the display part, inability to diffuse light, and difficulty in thinning

Inactive Publication Date: 2013-09-18
ALPS ALPINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, unless the thickness of the housing is reduced to a certain value or more, the light from the LED cannot be properly diffused, and the uniformity of brightness in each display unit cannot be ensured.
On the other hand, in order to ensure the uniformity of luminance in each display part, it is necessary to have a thickness dimension above a certain value, and it is difficult to correspond to the thinning of the entire device.

Method used

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Embodiment Construction

[0055] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The 7-segment display device according to this embodiment is a 7-segment display device capable of illuminating seven display sections arranged to represent an Arabic numeral 8 by seven LEDs arranged on a printed circuit board, and in particular, each The uniformity of the luminance in the display portion is achieved while reducing the thickness of the entire device.

[0056] figure 1 and figure 2 It is an exploded perspective view of the 7-segment display device 1 according to the embodiment of the present invention. In addition, the following will figure 1 The lower left side shown is referred to as the front side of the 7-segment display device 1, and the figure 1 The upper right side shown is referred to as the rear side of the 7-segment display device 1 . exist figure 1 In , the 7-segment display device 1 according to this embodiment is shown from ...

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PUM

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Abstract

The utility model relates to a seven-segment display apparatus, which realizes thinner apparatus while ensuring uniform brightness in all display units. The seven-segment display apparatus comprises seven light-guiding parts (402), which has optical conductivity and is configured in contraposition with a printed substrate (2), and a frame body which can shadelight. Seven containing parts configured with light-guiding configuration parts (303) of the configured with the light guiding parts are positioned in series and (402) and correspond to the guiding parts. The containing parts contain LED configuration parts (304) of LEDs. Furthermore, the frame body is configured in contraposition with a printed substrate. In a seven-segment display apparatus (1), three LED configuration parts (304) are positioned on internal sides of two frame parts, and one LED configuration part (304) is positioned on the outer side of the frame parts.

Description

[0001] technology area [0002] The present invention relates to a 7-segment display device used when displaying, for example, decimal values ​​in various electronic devices. Background technique [0003] Conventionally, the following 7-segment display device has been proposed, which includes: LEDs (light-emitting diodes) surface-mounted on a printed circuit board; a housing arranged to cover the LEDs and having light guide holes at positions corresponding to the LEDs; and a diffuser plate, It is pasted on the surface of the case to diffuse the light from the LEDs; this 7-segment display device can be easily mounted on a printed circuit board, and it corresponds to the thinning of the entire device (for example, refer to Patent Document 1). [0004] Prior art literature [0005] patent documents [0006] Patent Document 1: Japanese Patent Application Publication No. 7-23378 [0007] However, in the above-mentioned 7-segment display device, the display portion (semi-transpar...

Claims

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Application Information

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IPC IPC(8): G09F9/33
Inventor 伊势和贵伊藤直树伊藤彻相原正巳
Owner ALPS ALPINE CO LTD
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