Patent Publication Number: US-2006013074-A1

Title: Light emission and display devices and electronic apparatus using the display device

Description:
The present application is a Divisional application of U.S. application Ser. No. 10/295,650, filed Nov. 15, 2002. 
    
    
     BACKGROUND OF THE INVENTION  
      1. Field of the Invention  
      The present invention relates to light emission and display devices for use in wristwatches, portable telephones and car meters, and electronic apparatus using such light emission and display device.  
      2. Description of the Prior Art  
      Electronic apparatus are known that include, for example, a light emission and display device in which a ray emission element connected to a connection terminal provided on a circuit board is caused to emit rays on a user&#39;s demand.  
      It is, however, considered in such electronic apparatus that when the ray emitting element is disposed at more than a predetermined space from the connection terminal, it can not be easily connected electrically to the connection terminal in a stabilized manner due to intermediate elements such as indicators intervening between the ray emitting element and the connection terminal.  
     SUMMARY OF THE INVENTION  
      The subject of the present invention is to provide a light emission and display device in which even when the ray emission element is disposed at more than a predetermined space from the connection terminal, the ray emission element can be connected electrically to the connection terminal in a stabilized manner and in which the ray emission element can be located at a desired position to emit rays effectively, and to provide an electronic apparatus including such light emission and display device.  
      In order to achieve the above object, the present invention provides a connection member that connects the ray emission element disposed on a frame electrically to the connection terminal disposed below the frame.  
      In addition, in this invention the connection member has a bend at a position along its length depending on the positional relationship between the ray emission element and the connection terminal. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
      The invention will now be more thoroughly described and features and advantages will become readily apparent by reading the following detailed description, in which references will be made to the accompanying figures, where:  
       FIG. 1  is a schematic plan view of a first embodiment of a wristwatch according to the present invention with several elements removed for illustrating purposes;  
       FIG. 2  is an enlarged cross-sectional view of an important portion of the wristwatch taken along a line II-II of  FIG. 1 ;  
       FIG. 3A  is a front view of an ultraviolet ray-emitting element used in each of the first and a second embodiment according to the present invention;  
       FIG. 3B  is a bottom view of the ultraviolet ray-emitting element used in each of the first and second embodiments;  
       FIG. 3C  is a side view of the ultraviolet ray-emitting element used in each of the first and second embodiments;  
       FIG. 4  is an enlarged plan view of that portion of a frame in which the ultraviolet ray emitting element used in the first a fourth embodiment according to the present invention is disposed;  
       FIG. 5  is an enlarged view of a time hand of  FIG. 2 ;  
       FIG. 6  is an enlarged cross-sectional view of an important portion of a first modification of the first embodiment;  
       FIG. 7  is an enlarged cross-sectional view of an important portion of a second modification of the first embodiment;  
       FIG. 8  is an enlarged cross-sectional view of an important portion of the second embodiment;  
       FIG. 9  is an enlarged cross-sectional view of an important portion of a first modification of the second embodiment of the wristwatch;  
       FIG. 10  is an enlarged cross-sectional view of an important portion of a second modification of the second embodiment of the wristwatch;  
       FIG. 11A  is a front view of an ultraviolet ray-emitting element used in each of a third and a fourth embodiment according to the present invention;  
       FIG. 11B  is a bottom view of the ultraviolet ray-emitting element used in each of the third and fourth embodiments;  
       FIG. 11C  is a side view of the ultraviolet ray-emitting element used in each of the third and fourth embodiments;  
       FIG. 12  is an enlarged cross-sectional view of an important portion of a third embodiment of the wristwatch according to the present invention;  
       FIG. 13  is an enlarged cross-sectional view of an important portion of a first modification of the third embodiment;  
       FIG. 14  is an enlarged cross-sectional view of an important portion of a second modification of the third embodiment of the wristwatch;  
       FIG. 15  is an enlarged cross-sectional view of an important portion of a fourth embodiment of the wristwatch according to the present invention;  
       FIG. 16  is an enlarged cross-sectional view of an important portion of a first modification of the fourth embodiment of the wristwatch;  
       FIG. 17  is an enlarged cross-sectional view of an important portion of a second modification of the fourth embodiment;  
       FIG. 18  is a plan view of a fifth embodiment of the wristwatch according to the present invention with several parts removed for illustrating purposes.  
       FIG. 19  is an enlarged cross-sectional view of an important portion of the wristwatch taken along a line IXX-IXX of  FIG. 18 ;  
       FIG. 20  is a plan view of a frame and its vicinity of the fifth embodiment.  
       FIG. 21A  illustrates an ultraviolet ray-emitting element having a pair of straight legs used in the fifth embodiment;  
       FIG. 21B  illustrates an ultraviolet ray-emitting element having a pair of legs with a bend used in the fifth embodiment;  
       FIG. 21C  illustrates an ultraviolet ray-emitting element having a pair of legs with another bend used in the fifth embodiment;  
       FIG. 21D  illustrates an ultraviolet ray-emitting element having a pair of shortened legs with the bend used in the fifth embodiment;  
       FIG. 22  is an enlarged cross-sectional view of an important portion of a first modification of the fifth embodiment; and  
       FIG. 23  is an enlarged cross-sectional view of an important portion of a second modification of the fifth embodiment. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
      Embodiments of wristwatches according to the present invention will be described next in detail with reference to the accompanying drawings.  
     First Embodiment  
       FIG. 1  is a plan view of a wristwatch according to the present invention.  FIG. 2  is an enlarged cross-sectional view of an important portion of the wristwatch taken along a line II-II of  FIG. 2 .  
      As shown in  FIGS. 1 and 2 , the wristwatch  100  comprises a case  2  that houses a timepiece module  1  as a light emission and display device, and a glass cover  3  composing a top of the case  2  through a packing  4 . A ring-like frame  5  is provided to the timepiece module  1  so as to abut at an upper end on the glass cover  3 . A bottom cover  6  is attached to a lower end of the case  2  through a waterproof ring  7  with a buffer member  8  between the timepiece module  1  and the back cover  6 . A bezel  9  is provided so as to surround an upper periphery of the case  2 . Bands B are respectively attached to opposite ends of the case  2  through axles  2 A.  
      The timepiece module  1  comprises at least one of analog and digital functions.  FIG. 2  shows the timepiece module  1  with both the analog and digital functions. As shown in  FIG. 2 , the timepiece module  1  comprises an upper housing  10  and a lower housing  11  as intermediate members with a dial plate (intermediate member)  12  on top of the upper housing  10 . The ring-like frame  5  is disposed along the periphery of an upper surface of the dial plate  12 . A circuit board  13  is provided below the frame  5  between the upper and lower housings  10  and  11  disposed at a predetermined space. The timepiece module  1  has a structure in which the dial plate  12 , upper housing  10 , circuit board  13  and lower housing  11  are attached to an inner hollow-cylindrical frame  14  of the case  2 .  
      The upper housing  10  houses an analog hand mechanism  15  and a liquid crystal display device  16  whereas the lower housing  11  contains, for example, batteries (not shown) to operate the analog hand mechanism  15  and the liquid crystal display  16 .  
      The analog hand mechanism  15  comprises a hand shaft  17  that extends upwards through a hole  12   a  in the dial plate  12 , and hands  18  such as hour and minute hands attached to the hands shaft  17  so as to rotate above the dial plate  12 . The dial plate  12  and the hands  18  have light emitting areas  19  provided at predetermined positions thereon such that they are irradiated with rays from a pair of ray emitting elements, which will be described-below in more detail, to thereby emit light.  
      The liquid crystal display device  16  comprises a liquid crystal cell (not shown) that includes an upper and a lower transparent electrode plate between which liquid crystal is enclosed, and a pair of upper and lower polarizing plates between which the liquid crystal cell is disposed The liquid crystal display device  16  displays information such as the time when a voltage is applied across the pair of electrode plates of the liquid crystal cell. The liquid crystal display device  16  can be viewed through a window  12   c  in the dial plate  12 .  
      While the structure and operation of a left half of the wristwatch in this embodiment will be mainly described below with respect to  FIG. 2  for convenience of explanation, this description applies to the right half of the wristwatch, and other embodiments which will be described later.  
      The frame is made, for example, of a plastic material having an optical permeability, and especially a transparent plastic material As shown in  FIG. 2 , the frame  5  is provided on an inner periphery of the case  2  such that it abuts at its upper and lower ends on a periphery of the glass cover  3  and a periphery of the dial plate- 12  (upper housing  10 ), respectively. Two ultraviolet ray-emitting elements  201  called a black light are disposed at predetermined positions, for example, of  12  and  6  o&#39;clock on the frame  5 , as shown in  FIG. 1 . The frame  5  also functions as a protective or buffering member. Each ultraviolet ray emitting element  201  comprises an ultraviolet ray lamp or emitting diode that emits ultraviolet rays, for example, having a wavelength of 254-420, 374-389, and preferably proximately 365 nanometers.  
      For example, as shown in  FIGS. 3A, 3B  and  3 C each ultraviolet ray emitting element  201  comprises a ray output  20   a , a pair of electrode terminals  20   b  extending from the bottom of the ray output  20   a  around the respective corners of the ray output  20   a , and a buffer member  20   c  provided at substantially the center of the bottom of the ray output  20   a.    
      As shown in  FIGS. 2 and 4 , the ultraviolet ray emitting element  201  is embedded in the frame  5  such that ultraviolet rays emitted from the ultraviolet ray emitting element  201  enter the optically transparent frame  5 , which functions as a ray conducting member to thereby emit the ultraviolet rays from its entire surface to the outside. Therefore, a position distant inward from the ultraviolet ray-emitting element  201  is irradiated with the ultraviolet rays through the frame  5 . Since the two ultraviolet ray emitting elements  201  are disposed, for example, at  12  and  6  o&#39;clock positions, respectively, on a diameter of the wristwatch, as shown in  FIG. 1 , the elements or areas concerned are irradiated efficiently with the ultraviolet rays.  
      As shown in  FIG. 2 , the ultraviolet ray emitting element  201  is fixedly supported by a pair of connection members  21 A each of which includes a rod-like contact member  21  abutting on the ultraviolet ray emitting element  201 , and a coil spring  22  functioning to press the contact member  21  against the ultraviolet ray emitting element  201  (only one connection member is shown in  FIG. 2 ). Each contact member  21  has a support shaft  21   a  in contact with a respective one of the pair of electrode terminals  20   b , respectively, of the ultraviolet ray-emitting element  201 .  
      The contact member  21  is made of an electrically conductive material, and extends through a hole  10   a  in the upper housing  10 , a hole  12   b  in the dial plate  12 , and a hole  5   a  in the frame  5 . The frame  5  has an upper protrusion on which the ultraviolet ray-emitting element  201  is supported by the pair of support shafts  21   a . A buffer member  23  is provided between the glass cover  3 .and the ray output  20   a  of the ultraviolet ray-emitting element  201 .  
      Each coil spring  22  is made of an electrically conductive material and received within the hole  10   a  provided in the upper housing  10  so as to have upper and lower ends elastically pressed against a lower end of the contact member  21  and a contact terminal T formed on the circuit board  13 , respectively. Thus, the coil springs  22  press the respective contact members  21  against the ultraviolet ray-emitting element  201  and supports it elastically. The ultraviolet ray-emitting element  201  is connected electrically to the circuit board  13  by the pair of connection members  21 A that include the contact member  21  and the pair of coil springs  22 .  
      As shown in  FIGS. 2 and 5 , the light emitting areas  19  are formed as a plastic area  19   a  and a printed or coated light-emitting material area  19   b  at predetermined positions on the dial plate  12 , for example, on marks and hour numerals and/or hands  18  of the analog hand mechanism  15 . The light emitting areas  19  are preferably protected at their upper surfaces with transparent films (not shown).  
      Those light emitting areas  19  react to ultraviolet rays having a wavelength, for example, of 350-420 or 254-365 nanometers directly from the ultraviolet ray-emitting element  201  or through the light-transparent frame  5  to emit the corresponding colored lights. The light emitting areas are transparent in a normal state when not irradiated with ultraviolet rays.  
      The colors of lights to be emitted by the light emitting areas  19  include three basic colors; that is, green (or yellow), blue and red and their various variations. The light emitting areas  19  provided on the respective timepiece parts may emit the same colored light, but in order to visually recognize the time easily, the light emitting areas  19  on at least the dial plate  12  and the hands  18  emit respective different-colored lights preferably. For example, the light emitting areas  19  on the dial plate  12  and the hands  18  preferably emit red and blue lights, respectively. The light emitting areas  19  on the marks and hour numerals on the dial plate  12  may emit respective different-colored lights. The light emitting areas  19  on the respective hour numerals may emit different-colored lights as well.  
      As just described above, according to the wristwatch of the first embodiment each ultraviolet ray emitting element  201  is connected electrically to the circuit board  13  through the pair of electrically conductive connection members  21 A even when the ultraviolet ray emitting element  201  is disposed at a position distant from the circuit board  13 . Therefore, the light emitting areas  19  distant from the circuit board  13  are effectively irradiated with ultraviolet rays from the ultraviolet ray emitting element  201  concerned.  
      Since the ultraviolet ray emitting element  201  is secured elastically within the case  2  by the pair of connection members  21 A, each of which includes the contact member  21  and coil spring  22 , the coil springs  22  can absorb shocks which the case  2  may receive externally.  
      When wristwatches are different in size and type, their time modules  1  and the upper housings  10  are generally different in thickness. In addition, the respective elements may have errors in dimensions. Thus, the distances from their ultraviolet ray emitting elements  201  to the corresponding circuit boards  13  may not be the same. In these cases, however, it is ensured that the ultraviolet ray emitting element  201  is elastically secured within the case  2  by the pair of coil springs  22 , and the ultraviolet ray emitting element  201  is electrically connected easily to the circuit board  13  within the timepiece module  1 .  
      The ultraviolet ray emitting element  201  is capable of emitting ultraviolet rays on demand to thereby cause the respective light emitting areas  19  to emit the corresponding colored lights and to thereby allow the time to be visually recognized well Display excellent in color and ornament is achieved. Especially, the ultraviolet rays emitted by the ultraviolet ray emitting element  201  enters the light-transparent frame  5 , which guides the ultraviolet rays and emits them from its entire inner peripheral surface so as to strike the light emitting areas  19 . Thus, the light emitting areas  19  distant from the ultraviolet ray emitting elements  201  emit the corresponding different-colored lights.  
      Especially, since the ultraviolet ray emitting elements  201  are disposed at the outer periphery of the frame  5 , as shown in  FIG. 6  or  7 , most of the ultraviolet rays emitted by the ultraviolet ray emitting elements  201  enter the light-transparent frame to thereby achieve efficient irradiation.  
      Even when the upper housing  10  and the dial plate  12  are provided as intermediate members between the frame  5  and the connection terminals T of the circuit board  13 , the pair of contact members  21  extends through the holes  10   a  and  12   b  in the upper housing  10  and the dial plate  12  to thereby achieve connection between the ultraviolet ray emitting element  201  and the connection terminals T of the circuit board  13 .  
      While in the first embodiment the pair of ultraviolet ray emitting elements  201  is illustrated as provided over the frame  5 , the present invention is not limited to this particular case. For example, a modification of  FIG. 6  or  7  may be employed.  
      More specifically, as shown in the modification of  FIG. 6 , a protrusion  2   a  that extends inward from the inner periphery of the case  2  is provided at a position distant upwards from the periphery of the dial plate  12 . Each ultraviolet ray-emitting element  201  is disposed between the protrusion  2   a  and the dial plate  12  at the outer lower periphery of the frame  5 . The ultraviolet ray emitting element  201  is supported fixedly by the pair of connection members  21 A, each of which includes the contact member  21  and the coil spring  22 . This structure also produces advantageous effects similar to those produced by the structure of  FIG. 2 .  
      As shown in a modification of  FIG. 7 , a protrusion  2   a  that extends inward from the inner periphery of the case  2  may be provided at a position distant upwards from the periphery of the dial plate  12 . Each ultraviolet ray-emitting element  201  may be disposed between the inward protrusion  2   a  and a protrusion  5   b  extending outwards from an upper portion of the frame  5  at the outer periphery of the frame  5 . The ultraviolet ray-emitting element  201  may be supported fixedly by the pair of connection members  21 A, each of which includes the contact member  21  and the coil spring  22 . This structure also produces advantageous effects similar to those produced by the structure of  FIG. 2 .  
      The connection of the ultraviolet ray emitting element  201  to the circuit board  13  by the pair of connection members  21 A, each of which includes the contact member  21  and the coil spring  22 , as described in the first embodiment, is effective when the distance between the ultraviolet ray emitting element  201  and the circuit board  13  is too large for only the pair of coil springs  22  to connect them, so that the pair of coil springs  22  may be deformed, for example in the form of buckling, to thereby cause bad connection.  
     Second Embodiment  
      Referring to  FIG. 8 , a second embodiment of the wristwatch according to the present invention will be described next. The elements of the second embodiment identical or similar to those of the first embodiment are denoted by reference numerals similar or identical to those used in the first embodiment, and the elements of the second embodiment different from those of the first embodiment will be mainly described.  
      As shown in  FIG. 8 , the ultraviolet ray emitting element  201  is supported fixedly by a pair of coil springs  22 A (only one of which is shown), each of which composes a connection or pressing member abutting on a respective one of the electrode terminals T of the ultraviolet ray emitting element  201 .  
      Each coil spring  22 A is made of an electrically conductive material and extends through holes  10   a ,  12   b  and  5   a  in the upper housing  10 , dial plate  12  and frame  5 , respectively, so as to abut on the ultraviolet ray emitting element  201 . The coil spring  22 A has a lower end in elastic contact with the corresponding connection terminal T of the circuit board  13 . Thus, the pair of coil springs  22 A elastically supports the ultraviolet ray emitting element  201  in a pressing manner so as to bring the ultraviolet ray emitting element  201  into electrical contact with the circuit board  13  through the pair of coil springs  22 A.  
      As described above, according to the second embodiment of the wristwatch, even when the ultraviolet ray emitting element  201  is disposed at a certain space from the circuit board  13 , the ultraviolet ray emitting element  201  is electrically connected to the circuit board  13  through the pair of electrically conductive coil springs  22 A so that the light emitting areas  19  distant from the circuit board  13  are irradiated effectively with ultraviolet rays from the ultraviolet ray emitting element  201  concerned.  
      In addition, since the ultraviolet ray emitting element  201  is elastically supported by the pair of coil springs  22 A within the case  2 , the coil springs  22  can absorb possible shocks given to the case  2  externally. Even when in the respective wristwatches the distances from the ultraviolet ray emitting element  201  to the circuit board  13  are different, it is ensured that the respective ultraviolet ray emitting elements  201  are secured within the cases  2  due to elastic deformation of the pairs of coil springs  22 A and that the ultraviolet ray emitting elements  201  are electrically connected easily to the respective circuit boards  13 .  
      Especially, only the pair of coil springs  22 A is used to support the single ultraviolet ray emitting element  201  fixedly in the second embodiment to thereby facilitate assembling the coil springs  22 A and to reduce the cost whereas the pair of combined connection members (the contact member  21  and the spring) is used in the first embodiment.  
      While in the second embodiment the ultraviolet ray emitting elements  201  are illustrated as provided above the frame  5 , the present invention is not limited to this particular case. For example, a modification of  FIG. 9  or  10  may be employed.  
      More specifically, as shown in the modification of  FIG. 9 , a protrusion  2   a  that extends inward from the inner periphery of the case  2  is provided at a position distant upwards from the outer periphery of the dial plate  12 . An ultraviolet ray emitting elements  201  is disposed between the protrusion  2   a  and the dial plate  12  at the outer lower periphery of the frame  5 . The ultraviolet ray-emitting element  201  is supported fixedly by the pair of coil springs  22 A. This structure also produces advantageous effects similar to those produced by the structure of  FIG. 8 .  
      As shown in the modification of  FIG. 10 , a protrusion  2   a  that extends inward from the inner periphery of the case  2  may be provided at a position distant slightly upwards from the outer periphery of the dial plate  12 . An ultraviolet ray-emitting element  201  may be disposed between the inward protrusion  2   a  and a protrusion  5   b  extending outwards from an upper portion of the frame  5  at the outer periphery of the frame  5 . The ultraviolet ray-emitting element  201  may be supported fixedly by a pair of coil springs  22 A. This structure also produces advantageous effects similar to those produced by the structure of  FIG. 8 .  
     Third Embodiment  
      Referring to  FIGS. 11A, 11B ,  11 C and  12 , a third embodiment of the wristwatch according to the present invention will be described next. The elements of the third embodiment identical or similar to those of the first embodiment are denoted by reference numerals similar or identical to those used in the first embodiment. The elements of the third embodiment different from those of the first embodiment will be mainly described.  
      As shown in  FIGS. 11A, 11B  and  11 C, the ultraviolet ray emitting elements  202  have a ray output  20   a  and a pair of parallel straight legs  20   d  as electrode terminals or connection or contact members extending from the ray output  20   a . Since the ultraviolet ray-emitting element  202  is different in shape from the ultraviolet ray-emitting element  201 , they are identified by different reference numerals.  
      As shown in  FIG. 12 , the pair of legs  20   d  of the ultraviolet ray-emitting element  202  extends through holes  5   a ,  12   b  and  10   a  in the frame  5 , dial plate  12  and upper housing  10 , respectively. Provided within the hole  10   a  is a pair of electrically conductive securing or connecting members  24  connected to connection terminals T of the circuit board  13 . Each securing member  24  has a bent end  24   a  that is elastically deformed to thereby press the securing member  24  against an internal surface of the hole  10   a  as well as to press itself against the corresponding legs  20   d  to thereby hold the legs. Thus, the ultraviolet ray-emitting element  202  is supported securely and connected electrically to the circuit board  13 .  
      As described above, according to the wristwatch of the third embodiment, even when the ultraviolet ray emitting element  202  is disposed distant from the circuit board  13 , the ultraviolet ray emitting element  201  can be electrically connected to the circuit board  13  through the pair of electrically conductive securing members  24  so that the light emitting areas  19  distant from the circuit board  13  are irradiated effectively with ultraviolet rays from the ultraviolet ray emitting element  202 .  
      The ultraviolet ray emitting element  202  can be caused to emit ultraviolet rays on demand to thereby cause the respective light emitting areas  19  to emit corresponding colored lights. Since the ultraviolet ray emitting element  202  is releasably secured at its legs  20   d  by the corresponding securing members  24  in a pressed state, the legs  20   d  can be released from the pressed state to thereby allow the ultraviolet ray emitting element  202  to be exchanged with another easily, and the ultraviolet ray emitting element  202  can be electrically connected to the circuit board  13  in the timepiece module  1 .  
      While in the third embodiment the ray outputs  20   a  of the ultraviolet ray-emitting element  202  is illustrated as provided above the frame  5 , the present invention is not limited to this particular case. For example, a modification of  FIG. 13  or  14  may be employed.  
      More specifically, for example, as shown in a modification of  FIG. 13 , a protrusion  2   a  extending inward from the inner periphery of the case  2  may be provided at a position distant upwards from the outer periphery of the dial plate  12  such that the ray output  20   a  of the ultraviolet ray emitting element  202  is disposed between the inward protrusion  2   a  and the dial plate  12  at the outer lower periphery of the frame  5 . The ultraviolet ray-emitting element  202  is then secured elastically at its legs  20   d  by the corresponding securing members  24 . This structure also produces advantageous effects similar to those produced by the structure of  FIG. 12 .  
      As shown in a modification of  FIG. 14 , a protrusion  2   a  extending inward from the inner periphery of the case  2  may be provided at a position distant upwards from the outer periphery of the dial plate  12  such that the ray output  20   a  of the ultraviolet ray emitting element  202  is disposed between the inward protrusion  2   a  and a protrusion  5   b  below extending outward from an upper portion of the frame  5  at the outer periphery of the frame  5 . The ultraviolet ray-emitting element  202  is then secured elastically at its legs  20   d  by the corresponding securing members  24 . This structure also produces advantageous effects similar to those produced by the structure of  FIG. 12 .  
     Fourth Embodiment  
      Referring to  FIG. 15 , a fourth embodiment of the wristwatch-according to the present invention will be described next. The elements of the fourth embodiment identical or similar to those of the first embodiment are denoted by reference numerals similar or identical to those used in the first embodiment. The elements of the third embodiment different from those of the first embodiment will be mainly described.  
      As shown in  FIG. 15 , a pair of legs  20   d  of the ultraviolet ray-emitting element  202  extends through holes  5   a ,  12   b  and  10   a  in the frame  5 , dial plate  12  and upper housing  10 , respectively. The legs  20   d  are soldered at their lower ends  25  to the connection terminals T of the circuit board  13  to thereby secure the ultraviolet ray-emitting element  202 . Thus, the ultraviolet ray-emitting element  202  is electrically connected to the circuit board  13 .  
      As described above, according to the fourth embodiment, even when the ultraviolet ray emitting element  202  is distant from the circuit board  13  as in the first embodiment, the legs  20   d  can be soldered at their ends to the connection terminals T so as to electrically connect the circuit board  13  to the circuit board  13  whereby the light emitting areas  19  distant from the circuit board  13  are irradiated effectively with ultraviolet rays from the ultraviolet ray emitting element  202 .  
      The ultraviolet ray emitting element  202  can be caused to emit ultraviolet rays on demand to thereby cause the respective light emitting areas  19  to emit corresponding colored lights. Since the ultraviolet ray emitting element  202  is held at its legs  20   d  by soldering at  25 , inexpensive connection where the number of parts to be used is reduced is achieved to thereby reduce the cost of the wristwatch.  
      While in the fourth embodiment the ray outputs  20   a  of the ultraviolet ray emitting elements  202  are illustrated as provided over the frame  5 , the present invention is not limited to this particular case. For example, a modification of  FIG. 16  or  17  may be employed.  
      More specifically, for example as shown in the modification of  FIG. 16 , a protrusion  2   a  extending inward from the inner periphery of the case  2  may be provided at a position distant upwards from the outer periphery of the dial plate  12  such that the ray output  20   a  of the ultraviolet ray emitting element  202  is disposed between the inward protrusion  2   a  and the dial plate  12  below at the outer lower periphery of the frame  5 . The ultraviolet ray-emitting element  202  is then secured at its legs  20   d  by soldering at  25  to the connection terminals T. This structure also produces advantageous effects similar to those produced by the structure of  FIG. 15 .  
      As shown in the modification of  FIG. 17 , a protrusion  2   a  extending inward from the inner periphery of the case  2  may be provided at a position distant upwards from the outer periphery of the dial plate  12  such that the ray output  20   a  of the ultraviolet ray emitting element  202  is disposed between the inward protrusion  2   a  and a protrusion  5   b  extending outward from an upper portion of the frame  5  at the outer periphery of the frame  5 . The ultraviolet ray-emitting element  202  is then secured at its legs  20   d  by soldering at 25 to the connection terminals T. This structure also produces advantageous effects similar to those produced by the structure of  FIG. 15 .  
     Fifth Embodiment  
      Referring to  FIGS. 18-23 , a fifth embodiment of the wristwatch according to the present invention will be described next.  FIG. 18  is a plan view of the fifth embodiment.  FIG. 19  is an enlarged cross-sectional view of the wristwatch taken along a line IXX-IXX of  FIG. 18 . The elements of the fifth embodiment identical or similar to those of the first embodiment are denoted by reference numerals similar or identical to those used in the first embodiment. The elements of the third embodiment different from those of the first embodiment will be mainly described.  
      As shown in  FIGS. 18 and 19 , the wristwatch  200  comprises a case  2  that houses a timepiece module  1  as a light emission and display device with an upper glass cover  3  composing the top of the case  2  through a packing  4 . A dial plate  12  is provided above an analog hand mechanism  15  in the timepiece module  1  with a frame  5  shown in  FIG. 20  provided on the top of the dial plate  12 . The frame  5  abuts at its top on a protrusion  2   a  extending inwards from the inner periphery of the case  2  and is provided on the inner periphery of the case  2 . Aback cover  6  covers a lower end of the case  2 . Two bands B are attached respectively to opposite ends  2 B of the case  2 .  
      The analog hand mechanism  15  comprises a hand shaft  17  that extends upwards through a hole  12   a  in the dial plate  12 , and hands  18  such as hour and minute hands attached to the hands shaft  17  so as to rotate above the dial plate  12 . The dial plate  12  and the hands  18  have light emitting portions  19  provided at predetermined positions thereon such that they are irradiated with rays from the ultraviolet ray-emitting elements  203  to thereby emit the corresponding colored lights.  
      A circuit board  13  is disposed on a lower surface of the analog hand mechanism  15 . A pair of electrically conductive securing or connecting members  24  is connected at one end to a pair of connection terminals T of the circuit board  13  in a related hole  15   a  in the hand mechanism  15  open to the circuit board  13  side. A pair of legs  204  as contact or connection members of an ultraviolet ray emitting element  203  is disposed at a predetermined position on the frame (for example, corresponding to a respective one of the positions of the six and twelve o&#39;clock on the dial plate  12  shown in  FIG. 20 ). Each leg  204  has an L-like bend  205  comprising a first vertical portion  205   a  extending from a corner P of the L to a ray output  20   a  of the ultraviolet ray emitting element  203 , and a second horizontal portion  205   b  extending rightward from the corner point P disposed within a space  15   b  provided at the outer periphery of the analog hand mechanism  15  below the periphery portion of the dial plate  12 . The second horizontal portion  25   b  has an end extending into the corresponding hole  15   a  and pressed by a contact portion  24   a  of the securing member  24  against the circuit board  13 . That is, the second horizontal portion  205   b  of the leg  204  is pressed by the securing member  24  so that the ultraviolet ray-emitting element  203  is supported securely and electrically connected to the circuit board  13 .  
      Referring to FIGS.  21   21 B,  21 C and  21 D, a method of making the ultraviolet ray emitting element  203  comprising a ray output  20   a  with a pair of bendable legs as electrode terminals or connection or contact members  204  will be described next as an example. The ray output  20   a  is similar to that shown in  FIGS. 3A, 3B  and  3 C. The ultraviolet ray-emitting element  203  has a different form from the ultraviolet ray-emitting element  201  and therefore its elements are identified by different reference numerals.  
      The pair of legs  204  of the ultraviolet ray emitting element  203  of  FIG. 21A  are bent at a desired point P along their length to form bends  205  that include a first portion  205   a  and a second portion  205   b  bent,at a desired angle (for example of 90 degrees) to the first portion, as shown in each of  FIGS. 21B, 21C  and  21 D. The pair of legs  204  may be cut off at a desired point along their length to provide a desired adjusted length, as shown in  FIG. 21D .  
      As just described above, the respective lengths of the first and second portions  205   a  and  205   b  composing each of the bends  205  of the legs  204  and the angle between the first and second portions are changeable.  
      The ultraviolet ray-emitting element  203  of  FIG. 21A  is similar in front view to the ultraviolet ray-emitting element  202  of  FIG. 11A   
      As described above, the lengths of; and the angle between, the first and second portions  205   a  and  205   b  of each of the legs  204  of the ultraviolet ray emitting element  203  are adjustable depending upon the positional relationship between the ultraviolet ray emitting element  203  and the connection terminals T of the circuit board. Therefore, the ultraviolet ray-emitting element  203  can be disposed to various shapes, designs and sizes of wristwatches.  
      For example, a wristwatch  200   a  of  FIG. 22  is a first modification of the fifth embodiment that uses the same analog hand mechanism  15  as the wristwatch  200  of  FIG. 19 . It includes a case  2  and a dial plate  12  that are reduced in size. When the wristwatch  200   a  reduced in size is to be assembled, an ultraviolet ray emitting element  203  having a second shortened horizontal portion  205   b  compared to the ultraviolet ray emitting element  203  of the wristwatch  200  is disposed within the wristwatch  200   a.    
      More specifically, for example in the wristwatch  200  of  FIG. 19 , the analog hand mechanism  15  has a diameter a of 25.7 mm, the case  2  has a diameter b of 38.0 mm; the dial plate  12  has a diameter c of 29.6 mm; the glass cover  3  has a diameter d of 28.2 mm; and the wristwatch has a thickness e of 10.4 mm. When the ultraviolet ray emitting element  203  is to be disposed in this wristwatch  200 , it should have a first vertical portion  205   a  that has a length f of 3.14 mm, and a second horizontal portion  205   b  that has a length g of 3.65 mm in consideration of the positions of the other elements of the wristwatch  200  and the gap between each element of the wristwatch. The ray output  20   a  of the ultraviolet ray-emitting element  203  has a height h of 1.0 mm.  
      In contrast, in the wristwatch  200   a  of  FIG. 22  the analog hand mechanism  15  has a diameter a of 25.7 mm, which is the same as the wristwatch  200  of  FIG. 19 ; the case  2  has a diameter b of 33.0 mm; the dial plate  12  has a diameter c of 26.3 mm; the glass cover  3  has a diameter d of 24.6 mm; and the wristwatch has a thickness e of 10.4 mm. That is, the wristwatch  200   a  is small compared to the wristwatch  200 . By using an ultraviolet ray emitting element  203  which has a first vertical portion  205   a  having a length f of 3.14 mm, and a second horizontal portion  205   b  having a length g of 2.15 mm in consideration of the positions of the other elements of the wristwatch  200  and the gap between each element of the wristwatch, the ultraviolet ray emitting element  203  can be disposed within the wristwatch  200   a.    
      As just described above, even when analog hand mechanisms  15  having the same function and size are used in wristwatches different in size, especially in horizontal length, each of the ultraviolet ray emitting elements  203  can be disposed within a respective one of the wristwatches by adjusting the lengths of, and the angle between, the first and second portions  205   a  and  205   b  of each of the legs  204  at the bend  205  thereof. In the ultraviolet ray-emitting element  203 , the ray output  20   a  has a height h of 1.0 mm.  
      A wrist watch  200   b  of  FIG. 23  is a second modification of the fifth embodiment that is of a shock-resisting type. In this wristwatch, the gap between the hands  18  and the gap between each of the hands  18  and a respective one of the glass cover  3  and the dial plate  12  are set so as to be larger than those of the wristwatch  200  of  FIG. 19  in order to prevent the hands  18  from contacting with each other and also to prevent the hands  18  from contacting with each of the glass cover  3  and the dial plate  12 . Thus, the hand shaft  17  has an increased length and hence the frame  5  and the wristwatch  200   b  have increased thickness. In addition, the ray output  20   a  of the ultraviolet ray-emitting element  203  is provided at a position distant from the dial plate  12  than from the wristwatch  200  of  FIG. 19 . When such wristwatch  200   b  is assembled, including the same analog hand mechanism  15  as the wristwatch  200  of  FIG. 19 , an ultraviolet ray emitting element  203  having a first vertical portion  205   a  longer than the ultraviolet ray emitting element  203  of the wristwatch  200  can be disposed within the wristwatch  200   b.    
      More specifically, in the wristwatch  200   b  of  FIG. 23 , the analog hand mechanism  15  has a diameter a of 25.7 mm that is the same as that of the wristwatch  200  of  FIG. 19 ; the case  2  has a diameter b of 38.0 mm; the dial plate  12  has a diameter c of 29.6 mm; the glass cover  3  has a diameter d of 28.2 mm; and the wristwatch has a thickness e of 11.0 mm. That is, the wristwatch  200   b  is small in thickness compared to the wristwatch  200 . By using an ultraviolet ray emitting element  203  which has a first vertical portion  205   a  having a length f of 3.74 mm, and a second horizontal portion  205   b  having a length g of 3.65 mm in consideration of the positions of the other elements of the wristwatch  200   b  and the gap between each element of the wristwatch, the ultraviolet ray emitting element  203  can be disposed within the wristwatch  200   b.    
      As just described above, even when analog hand mechanisms  15  having the same function and size are used in wristwatches different in size, especially in height, each of the ultraviolet ray emitting element  203  can be disposed within a respective one of the wristwatches by adjusting the lengths of and the angle between, the first and second portions  205   a  and  205   b  of each of the legs  204  at the bend  205  thereof. In the ultraviolet ray-emitting element  203 , the ray output  20   a  has a height h of 1.0 mm.  
      As described above, by adjusting the lengths of the first and second portions  205   a  and  205   b  and the bend position P of each leg  204 , each ultraviolet ray emitting element  203  can be disposed within a respective one of wristwatches different in configuration, design and size and having especially the same analog hand mechanism  15 .  
      Generally, there is a great demand for wristwatches different in design and especially in outer size. By using the same analog hand mechanism  15  in each of the wristwatches different in design and outer size, the trouble to handle various analog hand mechanisms  15  is eliminated and the manufacturing cost of the analog hand mechanisms  15  is reduced compared to the case in which the various analog hand mechanisms  15  are used in the respective wristwatches different in design and outer size.  
      That is, even when the same analog hand mechanism  15  is used in each of the wristwatches different in outer size, the ultraviolet ray emitting element  203  of this (fifth) embodiment can be easily disposed harmonically within a respective one of the various wristwatches by adjusting the length of the legs  204 , their bend position P, their first and second portions  205   a  and  205   b , and the angle between the first and second portions and changing a cutting point along the length of the second portions  205   b  such that the wristwatches effectively function as light emission and display devices.  
      As described above, according to the wristwatch of the fifth embodiment, even when the ultraviolet ray emitting element  203  is distant from the circuit board  13 , they can be electrically connected through the electrically conductive securing members  24 , and the ultraviolet ray emitting element  203  can effectively irradiate the light emitting areas  19  distant from the circuit board  13  with ultraviolet rays, as in the first embodiment.  
      The ultraviolet ray emitting element  203  can emit ultraviolet rays on  15  demand to thereby cause the respective light emitting areas  19  to emit the corresponding colored rays. The-ultraviolet ray-emitting element  203  has the pair of legs  204  pressed and secured releasably. Therefore, the ultraviolet ray-emitting element  203  is electrically connected to the circuit board  13  of the timepiece module  1  in a state where the ultraviolet ray-emitting element  203  can be exchanged easily with another. Especially, since the legs  204  are bendable and cuttable at any position along the length thereof the ultraviolet ray emitting elements  203  of the same function and size can be disposed respectively within wristwatches different in configuration, design and size by changing the lengths of the legs  204  thereof  
      While in the first-fifth embodiments the ray emitting elements including the ultraviolet ray emitting elements are illustrated, the present invention is not limited to these particular cases. The ray emitting elements may include infrared or visible ray emitting elements and the light emitting areas that receive rays from those elements and emit the corresponding colored rays may be made of a fluorescent material The number of ray emitting elements and the positions where they are disposed are not limited.  
      The space between the frame and the circuit board may be determined depending upon the presence of the intervening members or the position of the frame.  
      In the present invention, the electronic apparatus are not limited to the wristwatches, but may include various other devices such as portable telephones and car meters.  
      The frames may take any shape, and the specific detailed structures of the electronic apparatus may be changeable on demand.  
      The present invention provides a Light emission and display device (for example, timepiece module  1 ) comprising a ray emitting element (for example, ultraviolet ray emitting element  201 ), light emitting areas (for example, shown by  19 ) for emitting the corresponding colored rays in reaction to rays from the ray emitting element, a frame (for example, shown by  5 ) on which the ray emitting element is disposed, a connection terminal (for example, shown by T) disposed at a predetermined position below the frame, and a connection member (for example, shown by  21 A) for connecting the connection terminal electrically to the ray emitting element.  
      According to the present invention, the ray-emitting element disposed on the frame can be electrically connected by the connection member in a stabilized manner to the connection terminal disposed at a predetermined position below the frame. The ray emitting element can be disposed at a desired position to emit rays to thereby strike the light emitting areas and hence to cause the same to emit the corresponding colored lights effectively.  
      Since the connection member is changeable in length and shape depending upon the positional relationship between the ray emitting element and the connection terminal restriction on the positional relationship between the ray emitting element and the connection terminal is reduced. Thus, the degrees of freedom of disposing the ray emitting element and selecting the size, etc., of the light emission and display device are increased.  
      In the first embodiment of the light emission and display device, the connection member comprises the electrically conductive contact member (for example,  21 ) abutting at one end on the terminal of the ray emitting element, and the electrically-conductive pressing member (coil spring  22 ) connected electrically to the connection terminal and abutting on the other end of the contact member for pressing the contact member against the ray emitting element.  
      According to this first embodiment, even when the ray emitting element is distant from the connection terminal, the former can be connected electrically to the latter through the electrically conductive connection member and the light emitting areas distant from the connection terminal can be irradiated effectively with rays from the ray emitting element.  
      The electrically conductive contact member abutting on the terminal of the ray emitting element is pressed against the ray emitting element by the electrically conductive pressing member that is connected electrically to the connection terminal to thereby cause the rays emitting element to electrically connect to the connection terminal. Therefore, even when there is an error in the space between the ray emitting element and the connection terminal or shocks are given to the apparatus, the connection between the ray emitting element and the connection terminal is maintained in a stable state.  
      In the second embodiment of the light emission and display device, the connection member comprises the electrically conductive pressing member (for example, coil spring  22 A) connected electrically at one end to the connection terminal and abutting at the other end on the terminal of the ray emitting element so as to be pressed against the ray emitting element.  
      According to this second embodiment, even when the ray emitting element is distant from the connection terminal the former can be connected electrically to the latter through the electrically conductive pressing member, and the light emitting areas distant from the connection terminal can be irradiated effectively with rays from the ray emitting element.  
      The electrically conductive pressing member connected electrically to the connection terminal abuts on the terminal of the ray-emitting element to be pressed against the ray-emitting element. Therefore, even when there is an error in the space between the ray emitting element and the connection terminal or shocks are given to the wristwatch, the connection between the ray emitting element and the connection terminal is maintained in a stable state.  
      The pair of simple pressing members is used to electrically connect the ray emitting element and the connection terminal and therefore the number of parts to be used is reduced.  
      In the fifth embodiment, the light emission and display device (for example, wristwatch  200 ) comprises the ray emitting element (for example, ultraviolet ray emitting element  203 ) and the light emitting area (for example,  19 ) that receives rays from the ray emitting element to thereby emit the colored light. The light emission and display device comprises the frame (for example,  5 ) on which the ray emitting element is disposed, the connection terminal (for example, T) disposed at the predetermined position below the frame, and the connection member (for example, leg  204 ) for electrically connecting the connection terminal to the ray emitting element, wherein the connection member has the bend (for example,  205 , first and second portions  205   a  and  205   b ) at the position (or example, P) determined depending upon the positional relationship between the ray-emitting element and the connection terminal.  
      According to the fifth embodiment, the connection member that connects the connection terminal electrically to the light emitting element has the bend at the position determined depending upon the positional relationship between the light emission element and the connection terminal. Thus, even when the ray-emitting element is disposed at the predetermined space from the connection terminal both are connected electrically to each other in a stabilized manner by the connection member. In addition, the light emitting areas are caused to emit the corresponding colored lights by causing the ray emitting element disposed at the desired position to emit rays that strike the light emitting areas effectively.  
      In the fifth embodiment of the light emission and display device, the connection member is bent at the angle determined depending upon the positional relationship between the ray emitting element and the connection terminal such that the ray emitting element may be disposed at the optimal position.  
      In the third and fifth embodiments of the light emission and display device the connection member comprises the electrically contact member (or example,  20   d  or  204 ) fixed at one end to the terminal of the ray emitting element, and the electrically conductive securing member (for example,  24 ) connected electrically to the connection terminal for securing the other end of the contact member at the predetermined position.  
      According to the third and fifth embodiments, the electrically conductive contact member secured at one end to the terminal of the ray-emitting element is secured at the predetermined position by the electrically conductive securing member. Therefore, even when the ray-emitting element is distant from the connection terminal, the ray-emitting element is connected electrically to the connection terminal. In addition, the light emitting area distant from the connection terminal is effectively irradiated with rays from the ray-emitting element.  
      For example, by connecting the conductive contact member disconnectably to the conductive securing member, the ray emitting element and the frame may be exchanged easily with others.  
      The fifth embodiment of the light emission and display device further comprises the intermediate member (for example, analog hand mechanism  15 ) disposed between the frame and the connection terminal. The electrically conductive contact member comprises the first portion (for example,  204   a ) extending from the ray emitting element to the bend position and the second portion (for example,  204   b ) extending from the bend position to the connection terminal The length of the first portion or the angle between the first and second portions is changeable depending upon the height of the intermediate member. The length of the second portion or the angle between the first and second portions is changeable depending upon the horizontal distance between the ray emitting element and the connection terminal  
      Since in the light emission and display device the electrically conductive contact member comprises the first portion changeable in length or angle depending upon the height of the intermediate member and the second portion changeable in length or angle depending upon the horizontal distance between the ray emitting element and the connection terminal the ray emitting element is connected electrically to the connection terminal depending upon the size and shape of the intermediate member and the distance and positional relationship between the ray emitting element and the connection terminal Thus, the degree of freedom of disposing the ray-emitting element is enhanced to thereby provide various light emission and display devices different in design and size.  
      In the fourth embodiment of the light emission and display device, the connection member comprises the electrically conductive contact member (for example,  20   d ) fixed at one end to the terminal of the ray emitting element and soldered at the other end to the connection terminal  
      Of course, this fourth embodiment produces advantageous effects similar to those produced by the present invention described in the above paragraphs (0054) and (0055). Even when the ray emitting element is distant from the connection terminal, the electrically conductive contact member fixed at one end to the ray emitting element&#39;s terminal is soldered at the other end to the connection terminal to thereby connect the ray emitting element to the connection terminal electrically. In addition, the light emitting area distant from the connection terminal can be irradiated effectively with the rays from the ray-emitting element.  
      By this soldering, the number of parts to be used is reduced and inexpensive connection is achieved to thereby reduce the manufacturing cost of the resulting wristwatches.  
      The inventive light emission and display device further comprises the intermediate member (for example, upper housing  10 , dial plate  12 , analog-hand mechanism  15 ) disposed between the frame and the connection terminal the connection member having the intermediate portion disposed in the hole ( 5   a ,  10   a ,  12   b  or  15   b ) in the intermediate member.  
      According to this device, when the intermediate member is provided between the frame and the connection terminal, the connection member extends through the holes in the intermediate members so as to connect the ray emitting element and the connection terminal. Thus, the connection member is secured in the stabilized manner.  
      In the light emission and display device according to the present invention, this apparatus, the connection terminal is formed on the circuit board. Thus, the ray emitting element is connected to the circuit board, so that the Light emitting area can emit a colored Light peculiar thereto.  
      In the electronic apparatus (for example, wristwatch  100  or  200 ) comprising the inventive light emission and display device in the case (for example, timepiece case  2 ), the ray emitting element is connected in the stabilized manner to the connection terminal by the connection means determined depending upon the distance between the ray emitting element and the connection terminal, etc. Thus, the light emission and display device can be provided in each of various electronic devices.