JPS58163985A - Display - 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 [Technical Field of the Invention] The present invention relates to a display device that divides brightness and darkness into each display unit arranged in a matrix, thereby displaying characters, figures, etc.

[Technical background of the invention and its problems]

Conventionally, this kind of display device is disclosed in Utility Model Application Publication No. 51-47680, for example.
No. Publication (= As shown, light is transmitted from a single light source through a plurality of optical fibers (2), the exit of this optical fiber is provided in a % display unit, and the light transmitted through this optical fiber (C2) is It has been proposed that a mechanical shutoff mechanism such as a pass-through/shutoff front plate be provided for control (secondary display section (''--one that displays information by distinguishing between light and dark).

Since it is a stock, there is a risk of wear and tear (secondary failure), and the complicated structure makes it difficult to downsize, and the display is displayed by lighting up the original However, in terms of energy conservation, basic satisfaction has not yet been obtained.

[Purpose of the invention]

The present invention has been made in consideration of the above-mentioned circumstances, and is a display that uses sunlight during the day and lamp light during the night to save energy, has a simple structure, and is capable of being miniaturized. The purpose is to provide equipment.

[Obscenity of invention]

The present invention includes a plurality of display units arranged in a matrix (two pairs of optical fibers), a control section that changes the light transmittance by means of a control section of the valley unit (two pairs of optical fibers) It is characterized in that one ends of the optical fiber are arranged opposite to each other, a lamp is provided on the other end side of the optical fiber, and a two-daylight introducing section is provided on the other end side of the optical fiber.

[Embodiments of the invention]

The details of the invention will be explained with reference to the illustrated embodiments.

Reference numeral 1 denotes a display section, and this display section 1 is formed with a plurality of display units 2 arranged in a matrix. A plurality of variable control units 3 are disposed.This control unit 3 has two electrodes (not shown) as shown in Fig.
Between two transparent plates 4, 4, such as glass, provided with a While the electrode is applied, it is in an opaque state with a transmittance of about 196, and when the electrode is not applied, it is in a transparent state with a transmittance of about 30%.In this embodiment, the display section 1 is controlled by the control section. 3 and one (forming two).

That is, as shown in Fig. 4 (:, two transparent plates 4°4
Between "゛plural"'"1"lfJ3kw)! J
1, z@ (4 arrangement 1 6) (2) The display part 1 is formed. 6 is an optical fiber, and this optical fiber 6 is a pair, and one end is connected to each unit 20 control W3+=
It is formed of a plurality of pairs arranged opposite each other, and one 6 on the other end side
A is placed opposite the light source lamp 7, and the external power 6b is used to introduce daylight s8. In addition, the daylight introduction s8 is provided by opening the top surface of the housing 10, and a condensing lens 11 is provided for peace of mind. , the paired optical fibers 6 are held at one end by a cylindrical holder 12 (2), and the other end is held by 21 sets (partially separated, one 6a and the other 6b on the other end are held by a cylindrical bundle 13a). , 13b. In addition, a plate-shaped support 15 provided with a holder insertion hole 14 for the optical fiber 6 is provided, and the display part 1 (the second one is in a matrix shape). The holder 12 is inserted into the holder insertion hole 1
(2) One end of the optical fiber 6 is installed opposite to the control unit 3. Furthermore, (2) The condensing lens 11 of the daylight introducing unit 8 is connected to the other end of the optical fiber 6. A plurality of 1thI lens portions 1 are formed corresponding to the number of dye bundles 13b of 6&.
6, and a focusing body mounting portion 17 is provided on the inner surface of this lens portion 16.
is formed.

Next, we will explain the two effects.As shown in Figure 1, C''
-For example, when displaying the character "I" on display section 1,
If it is daytime, turn off the light source lamp 7, operate the operation part (not shown), and apply voltage to the control parts 3 (=voltage) other than the control parts 3 shown with diagonal lines. The control unit 3 is in a transparent state, and the light transmitted from the daylight introduction unit 8 through the other end side of the optical fiber 6 is transparent.
is transmitted through the control section 3, and the transmission of light is blocked in other control sections 3 that are in an opaque state. Therefore, the portion of the control section 3 which is in the transparent state after the p receiving section 1 (2) becomes bright and the character "A" is displayed.

Next, at night, the light source lamp 7 is turned on and a voltage is applied to the control unit 3 according to the above procedure, so that the optical fiber 6 is connected to the other end of the optical fiber 6 from the optical lamp 7 via the other end of the optical fiber 6. Only the portion where the transmitted light passes through the control s3 in the transparent state becomes bright, and characters are displayed as described above.

Note that switching between daylight display and light source lamp (-) display can also be performed automatically by detecting external brightness using a light sensor or the like.

Although the present invention has been described with reference to the above-mentioned embodiments, the present invention is not limited to these embodiments. For example, the control section 3 may use an electrochromic device (hereinafter referred to as ECD). When a voltage is applied, it becomes opaque, and even when the voltage is removed, it remains opaque, and when a voltage in the opposite direction to the voltage is applied, it becomes transparent, and the application of this reverse voltage is removed. In addition, the daylight introducing section does not need to be provided with a condensing lens.

〔Effect of the invention〕

As described in detail above, each display unit of the display section is provided with a control section that changes the light transmittance by an electric signal (2), and a control section (2 pairs) of a control section of each optical display unit is provided. The two ends of the optical fibers are arranged opposite to each other, a lamp is provided at one end of the optical fiber, and a daylight introduction part is provided at the other end of the optical fiber.
At night, the display is performed using a light source lamp, but during the day, the display can be performed by controlling the control unit using daylight, resulting in energy savings. Further, since the control section is formed of a device whose light transmittance can be varied by an electric signal and controls the light transmitted through the optical fiber, the structure is simple and miniaturization can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway schematic diagram (Fig. 2 is a perspective view, Fig. 2 is a schematic cross-sectional view, and Fig. 3 is a schematic diagram showing the installation state of the optical fiber). , FIG. 4 is an enlarged sectional view of a part of the display section. 1...Display section, 2...Display unit 3
...Control unit, 6...Optical fiber 7.
...Light source lamp, 8...Daylight introduction section Patent applicant: Toshiba Electric Materials Corporation Figure 1 Z - Figure 2 '7 Figure 3

Claims (5)

[Claims] (1) a display section having a plurality of display units arranged in a matrix; a plurality of control sections arranged to operatively correspond to the display units and whose light transmittance is varied according to wind signals; A plurality of pairs of optical fibers each having one end facing the control section of each unit, a light source lamp provided at the other end of one of the pairs of optical fibers, and a light source lamp provided at the other end of the pair of optical fibers; A display device comprising: a daylight introducing portion provided at the other end; (2) The display device according to claim (1), wherein the control section is formed of liquid crystal. (3) A display device, wherein the control section is formed of an electrochromic device. (4) The display device according to any one of claims (1) to (3) C2, wherein the lamp is a high-efficiency sodium lamp. (5) The display device according to any one of claims (1) to (4), wherein the daylight introducing section is formed by providing a condensing lens.