JP2010278607A - Remote control transmitter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a remote control transmitter which is easy to see and perform operation without unevenness of illuminating of liquid crystal display elements, with respect to the remote control transmitter mainly used for operating a various electronic apparatus. <P>SOLUTION: An end part of an operation body 16 is extended between a light guiding body 15 and a light emitting element 7, and a spread part 16B is provided, so that light of the light emitting element 7 is spread, made to be incident into the light conductive body 15, and then the light guiding body 15 emits light with even brightness in the spread part 16B integrally formed with the operation body 16. Thus, in the remote control transmitter, excellent illuminating without unevenness of the liquid crystal display element 2 is performed, and display is easy to see and operation can be easily performed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a remote control transmitter mainly used for remote control of various electronic devices.

  In recent years, as various electronic devices such as video, audio, and air conditioning have become highly functional, remote control transmitters that remotely operate these electronic devices are also provided with display means such as liquid crystal display elements, and the display means such as volume and temperature are provided. Increasingly, various functions can be easily performed by displaying operation functions.

  Such a conventional remote control transmitter will be described with reference to FIGS.

  4 is a cross-sectional view of a conventional remote control transmitter, FIG. 5 is an exploded perspective view thereof, in which 1 is a substantially box-shaped case made of an insulating resin, and an opening 1A and a plurality of through holes are formed on the upper surface. 1B is formed.

  2 is a liquid crystal display element, and 3 is a transparent panel made of insulating resin. The liquid crystal display element 2 is mounted in the opening hole 1A on the upper surface of the case 1, and the upper surface of the case 3 is covered by the panel 3.

  4 is a wiring board having a plurality of wiring patterns (not shown) formed on the upper and lower surfaces, and 5 is an elastic connection body such as rubber in which a conductive layer and an insulating layer are laminated at a predetermined interval in the front-rear direction. The body 5 is mounted between the liquid crystal display element 2 and the wiring board 4 in a state where the body 5 is slightly bent in the vertical direction, and both ends of the liquid crystal display element 2 are connected to the wiring pattern of the wiring board 4 through the plurality of elastic connectors 5. Is electrically connected.

  Further, reference numeral 6 denotes a transparent light guide made of an insulating resin having an inclined surface on the lower surface formed into fine irregularities, 7 denotes a light emitting element such as a light emitting diode, and the light guide 6 is disposed on the lower surface of the liquid crystal display element 2. In addition, a plurality of light emitting elements 7 mounted on the upper surface of the wiring board 4 are arranged with the light emitting surface facing the right side surface of the light guide 6.

  Reference numeral 8 denotes an operation body such as rubber or insulating resin. On the upper surface of the operation body 8, a plurality of operation sections 8A having a substantially dome-shaped thin portion at the lower end are formed, and the plurality of operation sections 8A. Projecting from the plurality of through holes 1B on the upper surface of the case 1 so as to be movable up and down.

  Reference numeral 9 denotes a switch contact such as a push switch, and a plurality of switch contacts 9 are mounted on the upper surface of the wiring board 4 below the plurality of operation units 8A. Is being performed.

  Further, the transmission means 10 is formed by light emitting diodes or the like on the upper and lower surfaces of the wiring board 4, and the control means 11 is formed by a microcomputer or the like. The switch contact 9 and the transmission means 10 are electrically connected.

  Reference numeral 12 denotes an insulating resin cover. The cover 12 on which the battery housing portion 12A and the like are formed covers the lower surface of the case 1, and the case 1 and the cover 12 are fixed by a plurality of screws 13, so that the remote control transmitter can be used. It is configured.

  In the above configuration, when a predetermined operation portion 8A for switching the volume or temperature is pressed toward an electronic device operated by the remote control transmitter, such as a television or an air conditioner, the electrical connection of the switch contact 9 below is made. In response to the electrical contact / separation, the control means 11 transmits an infrared remote control signal from the transmission means 10 to the electronic device, so that, for example, switching of the volume of the television, the temperature of the air conditioner, and the like can be performed by remote operation. Done.

  Further, in response to such an operation, the control means 11 causes the light emitting element 7 to emit light, and this light enters the light guide 6 and is reflected by the fine uneven bottom surface to illuminate the liquid crystal display element 2 from the bottom surface. At the same time, the control unit 11 switches the display of the volume, temperature, etc. displayed on the liquid crystal display element 2 to a value or display corresponding to the operation.

  That is, the control unit 11 transmits a predetermined remote control signal from the transmission unit 10 by a pressing operation of the predetermined operation unit 8A to perform remote operation of the electronic device, and the control unit 11 controls the liquid crystal display element 2 by the light emitting element 7. The liquid crystal display element 2 is configured to display various operation functions such as sound volume and temperature so that various operations can be easily performed.

  As prior art document information related to the invention of this application, for example, Patent Document 1 is known.

JP 2005-223386 A

  However, in the above-described conventional remote control transmitter, when the control unit 11 causes the light emitting element 7 to emit light, the light is reflected by the lower surface of the light guide 6 and the liquid crystal display element 2 is illuminated from the lower surface, the plane shown in FIG. As shown in the figure, only the broken line portion at the right end of the light guide 6 in the vicinity of the plurality of light emitting elements 7 emits light brightly locally, and unevenness in brightness occurs in the illumination of the liquid crystal display element 2. There is a problem that the display of 2 is difficult to see and the operation is difficult to perform.

  The present invention solves such a conventional problem, and an object of the present invention is to provide a remote control transmitter that is easy to view and can be easily operated without uneven illumination of a liquid crystal display element.

  In order to achieve the above object, the present invention has the following configuration.

  According to the first aspect of the present invention, the remote control transmitter is configured by extending the end portion of the operation body between the light guide and the light emitting element and providing the diffusion portion, and is integrated with the operation body. Since the light from the light emitting element is diffused by the diffusing portion formed on the light guide and then enters the light guide, and the light guide emits light with uniform brightness, the liquid crystal display element can be illuminated well without unevenness, It has an effect that a remote control transmitter that can be easily displayed and can be easily displayed can be obtained.

  The invention according to claim 2 is the invention according to claim 1, wherein the diffusing portion at the end of the operating body and the light guide are integrally formed. In addition to the diffusing portion, the light guiding body is also integrated with the operating body. Thus, the number of components can be reduced, and the remote control transmitter can be made inexpensive with a simpler configuration.

  As described above, according to the present invention, there is an advantageous effect that it is possible to realize a remote control transmitter that is easy to see and operate without uneven illumination of the liquid crystal display element.

Sectional drawing of the remote control transmitter by one embodiment of this invention Exploded perspective view Sectional view according to another embodiment Cross-sectional view of a conventional remote control transmitter Exploded perspective view Plan view

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  In addition, the same code | symbol is attached | subjected to the part of the structure same as the structure demonstrated in the term of background art, and detailed description is simplified.

(Embodiment)
FIG. 1 is a cross-sectional view of a remote control transmitter according to an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, and in FIG. 1, 1 is a substantially box-shaped case made of an insulating resin such as polystyrene or ABS, An opening hole 1A and a plurality of through holes 1B are formed on the upper surface.

  2 is a liquid crystal display element, and 3 is a transparent panel made of an insulating resin such as polycarbonate. The liquid crystal display element 2 is mounted in the opening 1A on the upper surface of the case 1, and the panel 3 covers the upper surface. .

  4 is a wiring board made of paper phenol or epoxy containing glass, and 5 is an elastic connection body such as rubber in which a conductive layer and an insulating layer are laminated at a predetermined interval in the front-rear direction. Are formed between the liquid crystal display element 2 and the wiring board 4 in a state where the elastic connecting body 5 is slightly bent in the vertical direction. Both ends of the liquid crystal display element 2 are electrically connected to the wiring pattern of the wiring board 4 via the connection body 5.

  Further, 15 is a transparent light guide made of an insulating resin such as acrylic, 7 is a light emitting element such as a light emitting diode, and the light guide 15 is disposed on the lower surface of the liquid crystal display element 2 and the lower surface of the light guide 15 is inclined. The surface is formed into fine irregularities by etching, sandblasting or the like, and a plurality of light emitting elements 7 are mounted on the upper surface of the wiring board 4 on the side.

  Reference numeral 16 denotes an operation body such as silicone rubber or elastomer, and a plurality of operation parts 16A having a substantially dome-shaped thin part formed at the lower end are formed on the upper surface, and the plurality of operation parts 16A are formed on the upper surface of the case 1. The plurality of through-holes 1B protrudes up and down.

  And in the opening hole edge part of the operation body 16 center, the milky-white diffusion part 16B extended between the light guide 15 and the light emitting element 7 in which fine particles such as silica, alumina, and titanium oxide are dispersed, A plurality of light emitting elements 7 are arranged with the light emitting surface facing the right side surface of the diffusing portion 16B, which is integrally provided by two-color molding or the like and whose left side surface is in contact with the right side surface of the light guide 15.

  Further, reference numeral 9 denotes a switch contact such as a push switch, and a plurality of switch contacts 9 are mounted on the upper surface of the wiring board 4 below the plurality of operation portions 16A. Is being performed.

  Further, on the upper and lower surfaces of the wiring substrate 4, a transmission means 10 is formed by a light emitting diode or the like, and a control means 11 is formed by a microcomputer or the like. The switch contact 9 and the transmission means 10 are electrically connected.

  Reference numeral 12 denotes a cover made of an insulating resin such as ABS. The cover 12 on which the battery housing portion 12A and the like are formed covers the lower surface of the case 1, and the case 1 and the cover 12 are fixed to each other by a plurality of screws 13. A transmitter is configured.

  In the above configuration, when a predetermined operation unit 16A for switching the volume or temperature is pressed toward an electronic device operated by a remote control transmitter, such as a television or an air conditioner, the electrical contact of the lower switch contact 9 is performed. In response to the electrical contact / separation, the control means 11 transmits an infrared remote control signal from the transmission means 10 to the electronic device, so that, for example, switching of the volume of the television, the temperature of the air conditioner, and the like can be performed by remote operation. Done.

  Also, in response to such an operation, the control means 11 causes the light emitting element 7 to emit light, and after this light is diffused through the diffusing portion 16B, it enters the light guide 15 and is reflected by the fine uneven surface. Then, the liquid crystal display element 2 is illuminated from the lower surface, and the display of the volume, temperature, etc. displayed on the liquid crystal display element 2 is switched to a value or display corresponding to the operation.

  That is, the control unit 11 transmits a predetermined remote control signal from the transmission unit 10 by performing a pressing operation of the predetermined operation unit 16 </ b> A to perform remote operation of the electronic device, and the control unit 11 uses the light emitting element 7 to control the liquid crystal display element 2. Is displayed, and various operation functions such as volume and temperature are displayed on the liquid crystal display element 2 so that various operations can be easily performed.

  When the control unit 11 causes the light emitting element 7 to emit light and illuminates the liquid crystal display element 2 as described above, the end of the operating body 16 is located between the light emitting element 7 and the light guide 15 as described above. Since the extended diffusion portion 16B is provided, the light guide 15 as a whole emits light with uniform brightness, and the liquid crystal display element 2 can be illuminated well without unevenness.

  That is, the light of the light emitting element 7 first enters the diffusing portion 16B, is diffused in the diffusing portion 16B, then enters the light guide 15 and is reflected by the minute concave and convex lower surface, so that a plurality of light is emitted. Only the right end of the light guide 15 in the vicinity of the light emitting element 7 is prevented from being locally brightly lit, the entire light guide 15 emits light with uniform brightness, and the liquid crystal display element 2 is illuminated with uniform brightness without unevenness. It is comprised so that.

  That is, by providing the diffusion portion 16B with the end of the operation body 16 extending between the light guide 15 and the light emitting element 7, the light guide 15 emits light with uniform brightness, and the liquid crystal display element 2 is uneven. By illuminating the light, the display on the liquid crystal display element 2 becomes easy to see and can be easily operated.

  In addition, by forming the diffusing portion 16B integrally at the end of the operating body 16 by two-color molding or the like in this way, it is not necessary to provide another component such as a diffusing member between the light guide 15 and the light emitting element 7. Thus, the number of components can be reduced, and a remote control transmitter can be configured at low cost.

  Further, in the above description, the configuration in which the end portion of the operating body 16 extends between the light guide 15 and the light emitting element 7 and the diffusing portion 16B is provided here has been described. As described above, the diffusing portion 16C is further extended to the left of the lower surface of the liquid crystal display element 2, and a fine unevenness is provided on the inclined surface of the lower surface to form the same shape as the light guide 15. By integrally forming the light guide in addition to the diffusing portion, the light guide 15 is not required, the number of components is reduced, and the cost can be reduced with a simpler configuration.

  As described above, according to the present embodiment, the end of the operating body 16 is extended between the light guide 15 and the light emitting element 7 and is provided integrally with the operating body 16 by providing the diffusion portion 16B. Since the light from the light emitting element 7 is diffused by the diffusing portion 16B and then enters the light guide 15, and the light guide 15 emits light with uniform brightness, the liquid crystal display element 2 can be illuminated well without unevenness. Therefore, it is possible to obtain a remote control transmitter that is easy to view and can be easily operated.

  In the above description, a configuration in which a push switch or the like is mounted on the upper surface of the wiring board 4 to form a plurality of switch contacts 9 has been described. However, a movable contact such as carbon is provided on the lower surface of the operating portion 16A of the operating body 16. In addition, a plurality of fixed contacts are formed on the upper surface of the wiring board 4 below, and the movable contact and the fixed contact are opposed to each other, or a conductive metal thin plate having a substantially dome shape on the fixed contact on the upper surface of the wiring board 4. The present invention can be implemented even with a configuration using various switch contacts, such as a movable movable contact mounted thereon.

  The remote control transmitter according to the present invention does not have uneven illumination of the liquid crystal display element, and is easy to see and easy to operate, and is useful mainly for remote control of various electronic devices.

DESCRIPTION OF SYMBOLS 1 Case 1A Opening hole 1B Through-hole 2 Liquid crystal display element 3 Panel 4 Wiring board 5 Elastic connection body 7 Light emitting element 9 Switch contact 10 Transmission means 11 Control means 12 Cover 12A Battery accommodating part 13 Screw 15 Light guide 16 Operation body 16A Operation Part 16B, 16C Diffusion part

Claims (2)

A liquid crystal display element mounted in the opening of the substantially box-shaped case, a light guide disposed on the lower surface of the liquid crystal display element, a light emitting element disposed on a side surface of the light guide, and the upper surface of the case The operation body from which the operation unit protrudes, the switch contact that is electrically connected / disconnected by the operation of the operation unit, and the control unit that transmits a remote control signal from the transmission unit according to the electrical contact / disconnection of the switch contact, A remote control transmitter in which an end portion of the operation body is extended between the light guide and the light emitting element, and a diffusion portion is provided. The remote control transmitter according to claim 1, wherein the diffuser at the end of the operating body and the light guide are integrally formed.

Images