JP2006253737A - Electronic device with infrared receiving sensor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic device with an infrared receiving sensor, capable of efficiently guiding an infrared signal from a remote controller to the infrared receiving sensor, even if the sensor does not face the front, in the electronic device provided with remote control functions. <P>SOLUTION: In the electronic device with an infrared receiving sensor 10, one part of a front panel 4 forming a cabinet exposed to the external periphery on the front of a display panel 2 and a picture frame 6 and one part of the external periphery of the picture frame 6 are constituted of a transparent part 4a. The infrared-receiving sensor 10 is attached so as to be hidden in the back surface of the picture frame 6, a recess 21 opening toward the sensor 10 is formed on the transparent part 4a facing the sensor 10 and is so configured that the recess 21 allows an infrared signal transmitted from the remote controller to be incident into the sensor 10 directly, reflected or refracted through the opening. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic device with an infrared sensor that can receive an infrared signal transmitted from an infrared remote control.

  Many electronic devices are remotely operated by transmitting infrared signals from an infrared remote controller (hereinafter simply referred to as “remote controller”). Such an electronic device requires an infrared light receiving sensor for receiving an infrared signal, and must be attached to the front of the electronic device main body facing the front. In the conventional electronic device, since the infrared light receiving sensor is mounted on the circuit board, an infrared light receiving portion is provided by attaching a translucent part called a light guide tube to the front cabinet.

  5 and 6 show a schematic configuration and structure of a thin display device such as a liquid crystal display device (LCD) or a plasma display device (PDP) of the related art having such an infrared light receiving unit. FIG. 5 is a front view thereof, and FIG. 6 is a cross-sectional view taken along the line AA in FIG.

  5 and 6, reference numeral 1B denotes a conventional thin display device. The thin display device 1B is attached to a cabinet 3 or a frame (not shown) so that a display panel 2 as a main body is disposed on a large portion of the front surface. The cabinet 3 includes a front panel 4 and a rear cover 5. On the outer periphery of the front panel 4, for example, a colored plastic frame 6 such as black is fitted as a decoration. For example, the infrared light receiving unit 7 is provided on the lower right side.

  The infrared light receiving unit 7 includes a light guide member 8 fitted into a through hole of a round hole opened in the front panel 4 and the frame 6 and an infrared light receiving sensor 10 fixed to the circuit board 9 toward the back surface. Has been.

  As described above, in the conventional thin display device 1B, since the infrared light receiving sensor 10 is mounted on the circuit board 9 as described above, it must be attached to the front of the main body. did not become.

  The electronic device in which the infrared light receiving sensor 10 is disposed in this way is also found in an air conditioner disclosed in FIG. 2 of [Patent Document 1] below, and includes a translucent component called a light guide tube. An infrared light receiving unit is configured by being attached to the exterior.

Also, in FIG. 1 of [Patent Document 2] below, a part of the front panel is thinned to form an infrared light receiving portion, the back surface of the infrared light receiving portion is convex, and the back surface thereof is mounted on a circuit board in the same manner as described above. An infrared light receiving part structure of an air conditioner having a light receiving sensor attached to the front is disclosed.
JP 2001-4165 (first page, FIG. 2) JP-A-11-304188 (first page, FIG. 1)

  As described above, the infrared light receiving section is made the same color as the exterior of the cabinet or the like (colored), and particularly in the case of the air conditioner of [Patent Document 1], the infrared light guide tube is made inconspicuous. It is also a cause of damage to the design.

  When a transparent member is used for the frame 6, it is necessary to use a colorless and transparent member in order to make the light guide member 8 inconspicuous. When such an unemployed transparent member is used, an infrared light receiving sensor inside 10 will be visible, and the design will be damaged.

  Further, as disclosed in the above-described both air conditioners, the infrared light receiving sensor is assumed to be a place where a remote control operation is performed and needs to face the direction. In most cases, the infrared sensor is mounted on the circuit board and must be attached to the front of the electronic device body so that it faces the front. It is necessary to cover the sensor and the circuit board, which limits the degree of freedom in designing the front surface of the electronic device.

  The present invention is to solve these problems, and in an electronic device having a remote control function, an infrared signal from the remote control is efficiently sent to the infrared reception sensor even if the infrared light reception sensor is not facing the front. It is an object of the present invention to obtain an electronic device with an infrared light receiving sensor that can be guided and has a degree of freedom in design because the infrared receiving sensor is not conspicuous.

  Therefore, the electronic device with an infrared light receiving sensor according to the present invention is an electronic device with an infrared light receiving sensor in which the main body of the electronic device is exposed and the non-surface surface part of which is a transparent member is exposed. Is attached to the lower side of the main body side, and a hollow opening toward the infrared light receiving sensor is formed inside the transparent portion, and infrared rays transmitted from the infrared remote control by the depression. The infrared light signal is incident on the infrared light receiving sensor through the opening by directly or refracting a signal.

  The non-form surface portion is a portion that cannot be seen in any direction of front / rear, top / bottom / left / right, and more specifically, the non-form surface portion is constituted by an opaque front panel and / or a frame of a cabinet.

  In addition, the infrared light receiving sensor is attached to the non-form surface portion below the outer peripheral portion of the electronic device main body, and the recess is formed in a transparent part existing below the infrared light receiving sensor. To do.

  Furthermore, it is desirable that the cross section of the recess is a parabolic or conical recess.

  Furthermore, it is desirable that the inner peripheral surface of the recess is finished to be a rough surface.

  Furthermore, the electronic device is preferably a thin display device, and the electronic device with an infrared light receiving sensor whose main body is a thin display panel is suitable.

  Therefore, according to the electronic device with an infrared light receiving sensor of the present invention, the infrared light can be obtained without using the light guide tube found in the prior art and without arranging the infrared light receiving sensor toward the front direction of the electronic device. By forming the cross section of the recess of the light receiving portion in a parabolic shape or a conical shape, an infrared signal from a remote controller from a wide range can be received by the infrared light receiving sensor, and the design can be improved.

According to the electronic device with an infrared light receiving sensor of the present invention,
1. 1. Since the light guide tube in the conventional electronic device is not required, the number of parts can be reduced. Since it is not necessary to point the infrared sensor toward the front of the electronic device, the infrared sensor will not be visible even if a transparent material is used. Numerous excellent effects can be obtained, such as the ability to use designs that use transparent materials.

  The electronic device with an infrared sensor according to the present invention is a transparent component material in which a part of a cabinet and a bezel that are exposed on the outer peripheral part of the front surface of a thin display device main body such as an LCD or a PDP are at least partly transparent The transparent component material is arranged so as to hide the infrared light receiving sensor on a non-viewable surface portion that is invisible even when viewed from the top, bottom, left and right of the back of the bezel, and is attached downward and faces the infrared light receiving sensor. In addition, a recess is formed that opens toward the light receiving sensor, and the infrared signal transmitted from the remote controller is directly or refracted by the recess so that the infrared signal is incident on the light receiving sensor through the opening.

  The infrared light receiving sensor is preferably attached to the back surface of the non-form surface portion below the outer peripheral portion of the electronic device main body, and the recess is formed in a transparent part existing below the infrared light receiving sensor.

  Moreover, it is preferable that the said hollow is a hollow whose cross section is a parabolic shape or a cone shape. And it is preferable to finish the inner peripheral surface of the hollow to a rough surface.

  The present invention is particularly effective when applied to a case where the electronic device is a thin display device and the main body is a thin display panel.

  Hereinafter, the electronic apparatus with an infrared light receiving sensor of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing a schematic configuration of a thin display device of an embodiment of the present invention, FIG. 2 is a partially enlarged front view of an infrared light receiving portion in FIG. 1, and FIG. 3 is a line AA in FIG. FIG. 4 is an enlarged cross-sectional top view of the infrared light receiving portion viewed horizontally from the top and FIG. 4 is an enlarged cross-sectional side view of the infrared light receiving portion cut along the line BB in FIG.

  In the thin display device of the present invention, the same portions as those of the conventional thin display device 1B are denoted by the same reference numerals.

  In FIG. 1, reference numeral 1A denotes a thin display device according to an embodiment of the present invention. This thin display device 1A is also attached to a cabinet 3 and a frame (not shown) so that the display panel 2 as the main body is arranged on the front part of the thin display device 1A. The cabinet 3 is composed of a front panel 4 and a rear cover (not shown), which is no different from the cabinet 3 of the thin display device 1B of the prior art. On the outer periphery of the front panel 4, for example, a black plastic frame 6 is fitted as a decoration.

  In the present invention, a part of the front panel 4 below the frame 6 is constituted by a plastic transparent part 4a, a recess 21 is formed in the transparent part 4a, and the back of the frame 6 immediately above the part. An infrared light receiving unit 20 according to the present invention was configured by arranging the infrared light receiving sensor 10 on an existing non-surface surface, for example, the frame (not shown) (FIG. 2).

  The surface of the circuit board 9 on which the infrared light receiving sensor 10 is mounted is attached to the front panel 4 or a frame (not shown) or the like in a horizontal state, that is, in a state perpendicular to the back surface of the frame 6. Accordingly, the light receiving lens 10a and the light receiving surface (not shown) of the infrared light receiving sensor 10 face downward (FIG. 4).

  Moreover, as shown in FIG.3 and FIG.4, the hollow 21 is formed in the end surface 4b of the transparent component 4a directly under the infrared light receiving sensor 10. FIG. The shape is formed by cutting so that the cross section becomes a parabolic shape or a conical shape. The entire inner surface of the recess 21 becomes a reflecting surface 21a. The reflecting surface 21a is preferably finished to be a rough surface so that the infrared signal S is more easily diffusely reflected.

  As described above, when the infrared light receiving unit 20 according to the present invention is configured, the infrared signal S transmitted from the remote controller (not shown) enters from the front or side of the parabolic or conical recess 21 and enters the infrared signal S. Is refracted directly or on the reflecting surface 21a of the inclined surface, and repeatedly reflected, is hidden behind the colored frame 6 and is condensed on the infrared light receiving sensor 10 through the light receiving lens 10a facing downward, The infrared signal S can be efficiently received, and the operation of the thin display device 1A can be controlled in accordance with the received infrared signal S. As described above, the thin display device 1A according to the embodiment of the present invention can be operated by the remote controller.

  As apparent from the above description, according to the infrared light receiving unit 20 of the present invention, the infrared signal S from the remote controller can be efficiently guided to the infrared receiving sensor 10 by the recess 21 formed in the transparent component 4a, and the infrared light is received. Since the receiving sensor 10 is disposed on the back surface of the colored frame 6, its presence can be made inconspicuous. In addition, by attaching the circuit board 9 to the cabinet 3 or the frame (not shown) in a horizontal state, the width of the frame 6 can be narrowed, and a transparent material can be used for the exterior. The degree of freedom in designing the design can be increased, such as eliminating the need for a light guide member in the technology.

  In the above embodiment, the infrared light receiving unit 20 according to the present invention is arranged in the lower part of the display panel 2, but the infrared light receiving unit 20 is arranged in the upper part or the left and right side parts of the display panel 2. It may be provided, and it is added that the same operation effect as the case where it is arranged in the lower part can be obtained.

  The present invention can be used in the electronic equipment manufacturing industry and the electronic component manufacturing industry.

1 is a front view illustrating a schematic configuration of a thin display device according to an embodiment of the present invention. FIG. 2 is a partially enlarged front view of an infrared light receiving unit in FIG. 1. FIG. 3 is an enlarged cross-sectional top view of an infrared light receiving portion viewed horizontally from a line AA in FIG. 2. It is an expanded sectional side view of the infrared rays light-receiving part cut on the BB line in FIG. It is the front view which showed schematic structure of the thin display apparatus of an example of a prior art. It is sectional drawing on the AA line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1A ... Thin-type display apparatus of one Example of this invention, 2 ... Display panel, 3 ... Cabinet, 4 ... Front panel, 4a ... Transparent part, 5 ... Rear cover, 6 ... Frame, 9 ... Circuit board, 10 ... Infrared light receiving sensor DESCRIPTION OF SYMBOLS 10a ... Light receiving lens, 20 ... Infrared light-receiving part, 21 ... Recess

Claims (7)

In the electronic device with an infrared light receiving sensor in which the front surface and the non-surface surface part of which is a transparent member are exposed,
Infrared light receiving sensor is attached to the lower side of the main body side on the non-surface portion,
A recess that opens toward the infrared light receiving sensor is formed inside the transparent portion,
An electronic apparatus with an infrared light receiving sensor, wherein the infrared signal transmitted from the infrared remote control is directly or refracted by the depression so that the infrared signal is incident on the infrared light receiving sensor through the opening.   2. The electronic device with an infrared light receiving sensor according to claim 1, wherein the non-view surface portion is a portion that cannot be seen from any direction of front and rear, up and down, left and right.   The electronic device with an infrared light receiving sensor according to claim 1, wherein the non-form surface portion is configured by an opaque front panel and / or a frame of a cabinet.   The infrared light receiving sensor is attached to the non-finished surface portion below the outer peripheral portion of the electronic device main body, and the recess is formed in a transparent part existing below the infrared light receiving sensor. Item 2. An electronic device with an infrared light receiving sensor according to Item 1.   5. The electronic device with an infrared light receiving sensor according to claim 1, wherein a cross section of the recess is a parabolic or conical recess.   The electronic device with an infrared light receiving sensor according to claim 1, wherein the inner peripheral surface of the recess is finished to be a rough surface. The electronic device with an infrared light receiving sensor according to claim 1, wherein the electronic device is a thin display device, and a main body thereof is a thin display panel.

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