Telephone terminal device

Abstract

The exit light from the illuminating part illuminates each key button as a spot light. Hence, leak of light to the surrounding is prevented. As a result, the visual recognition is extremely improved, and easy-to-read type data can be displayed. A telephone terminal device includes a circuit board, and a plurality of key buttons disposed at the upper side of the circuit board. The circuit board has a through-hole, and the through-hole is positioned immediately beneath at least one key button of the plurality of key buttons, and each key button is illuminated by the light passing the through-hole.

What is claimed is:  
     
         1 . A telephone terminal device comprising: 
 a circuit board, and    a plurality of key buttons disposed at the upper side of said circuit board,    wherein said circuit board has a through-hole,    said through-hole is positioned at an underneath direction of at least one key button of said plurality of key buttons, and    each key button is illuminated by said light passing by way of said through-hole.    
     
     
         2 . The telephone terminal device of  claim 1 , 
 wherein said circuit board has a plurality of through-holes,    each one of said plurality of through-holes is positioned immediately beneath each key button of said plurality of key buttons, and    said each key button is illuminated by said light passing by way of each through-hole.    
     
     
         3 . The telephone terminal device of  claim 1 , 
 wherein said plurality of key buttons have at least one type selected from the group consisting of numeral, character, symbol, and graphic pattern.    
     
     
         4 . The telephone terminal device of  claim 1 , 
 wherein as each key button is pushed sequentially, said each key button itself is illuminated sequentially by said light.    
     
     
         5 . The telephone terminal device of  claim 1 , further comprising a display unit, 
 wherein said each key button of said plurality of key buttons has a displayed type, and    as said each key button is pushed sequentially,    said each key button itself is illuminated sequentially by said light, and is put out after a predetermined time, and said type displayed in said illuminated key button is displayed in said display unit, and plural types corresponding to the types displayed in said sequentially pushed key buttons are displayed in said display unit.    
     
     
         6 . The telephone terminal device of  claim 1 , 
 wherein said each key button is light transmissive, and    said each key button is illuminated by the light passing said through-hole and permeating said key button.    
     
     
         7 . The telephone terminal device of  claim 1 , further comprising an illuminating part, 
 wherein said illuminating part emits said light.    
     
     
         8 . The telephone terminal device of  claim 7 , 
 wherein the sectional area of said through-hole is wider than the projection area of said illuminating part.    
     
     
         9 . The telephone terminal device of  claim 1 , further comprising a plurality of illuminating parts, 
 wherein each illuminating part of said plurality of illuminating parts emits said light,    said through-hole has a plurality of through-holes,    each illuminating part of said plurality of illuminating parts is disposed at the lower side of said circuit board, and    said each key button is illuminated by said light passing each through-hole of said plurality of through-holes.    
     
     
         10 . The telephone terminal device of  claim 9 , 
 wherein the sectional area of said each through-hole is wider than the projection area of each illuminating part.    
     
     
         11 . The telephone terminal device of  claim 1 , further comprising a plurality of illuminating parts, 
 wherein each illuminating part of said plurality of illuminating parts emits said light,    said circuit board has a contact circuit disposed immediately beneath each key button,    said through-hole has a plurality of through-holes,    at least two through-holes of said plurality of through-holes are formed at both sides of said contact circuit,    each illuminating part of said plurality of illuminating parts is disposed at the lower side of one through-hole of said two through-holes, and    said each key button is illuminated by said light passing each through-hole of said plurality of through-holes.    
     
     
         12 . A telephone terminal device comprising: 
 a circuit board responsible for function control, said circuit board having a plurality of through-holes,    an operation button main body having a plurality of key buttons, each key button of said plurality of key buttons being light transmissive, said each key button displaying at least one type selected from the group consisting of numeral, character, symbol, and graphic pattern, and    an illuminating part,    wherein each through-hole of said plurality of through-holes is positioned at an underneath direction of each key button of said plurality of key buttons,    said illuminating part is disposed at a position for illuminating each key button of said plurality of key buttons by way of said each through-hole, and    said each key button is illuminated by the light passing said each through-hole and permeating said key button.    
     
     
         13 . The telephone terminal device of  claim 12 , 
 wherein as said each key button is pushed sequentially, said each key button itself is illuminated sequentially by said light.    
     
     
         14 . The telephone terminal device of  claim 12 , further comprising a display unit, 
 wherein as said each key button is pushed, said each key button itself is illuminated by said light, and is put out in a predetermined time, said type displayed in said illuminated key button is displayed in said display unit, and    plural types corresponding to the types displayed in said sequentially pushed key buttons are displayed in said display unit.    
     
     
         15 . The telephone terminal device of  claim 12 , wherein said operation button main body is made of an elastic material.  
     
     
         16 . The telephone terminal device of  claim 12 , wherein the sectional area of said each through-hole is wider than the projection area of each illuminating part.  
     
     
         17 . A telephone terminal device comprising: 
 a plurality of key buttons, and    a type displayed in each key button of said plurality of key buttons,    wherein said type has at least one selected from the group consisting of numeral, character, symbol, and graphic pattern, and    as said plurality of key buttons are selectively lit up, the information displayed by said type is expressed.    
     
     
         18 . The telephone terminal device of  claim 17 , further comprising a circuit board disposed at the lower side of said plurality of key buttons, 
 wherein said circuit board has a through-hole formed immediately beneath each key button, and    said each key button is illuminated by way of said through-hole.    
     
     
         19 . A telephone terminal device comprising: 
 a plurality of key buttons, and an illuminating part,    wherein each key button of said plurality of key buttons displays at least one type selected from the group consisting of numeral, character, symbol, and graphic pattern,    said each key button being pushed is illuminated by a light emitted from said illuminating part, and    all said pushed key buttons are selectively illuminated and displayed in said plurality of key buttons.    
     
     
         20 . The telephone terminal device of  claim 19 , further comprising a circuit board disposed at the lower side of said plurality of key buttons, 
 wherein said circuit board has a plurality of through-holes,    each through-hole of said plurality of through-holes is positioned immediately beneath each key button, and    said each key button is illuminated by the light emitted from said illuminating part by way of said each through-hole.    
     
     
         21 . The telephone terminal device of  claim 19 , 
 wherein said illuminating part has a plurality of illuminating parts, and    said each key button is illuminated by the light emitted from each illuminating part of said plurality of illuminating parts.    
     
     
         22 . The telephone terminal device of  claim 19 , further comprising a display unit, 
 wherein said type displayed in each pushed key button is displayed in said display unit.    
     
     
         23 . The telephone terminal device of  claim 19 , 
 wherein said plural key buttons are arranged in three rows and five lines or more.    
     
     
         24 . A telephone terminal device comprising: 
 a circuit board responsible for function control,    an operation button main body having a plurality of key buttons, each key button of said plurality of key buttons being light transmissive, said each key button displaying at least one type selected from the group consisting of numeral, character, symbol, and graphic pattern, and    an illuminating part,    wherein said illuminating part is disposed in said circuit board,    each key button of said plurality of key buttons displays at least one type selected from the group consisting of numeral, character, symbol, and graphic pattern,    said each key button being pushed is illuminated by a light from said illuminating part, and all said pushed key buttons are selectively illuminated and displayed in said plurality of key buttons.    
     
     
         25 . The telephone terminal device of  claim 24 , 
 wherein said circuit board has a plurality of through-holes,    said illuminating part is disposed at a position for illuminating each key button by way of each through-hole of said plurality of through-holes,    said each through-hole is positioned immediately beneath said each key button, and    said each key button is illuminated by the light emitted from said illuminating part by way of each through-hole.    
     
     
         26 . The telephone terminal device of  claim 24 , 
 wherein said circuit board has a plurality of through-holes,    said illuminating part has a plurality of illuminating parts,    each illuminating part of said plurality of illuminating parts is disposed at a position for illuminating said each key button by way of each through-hole of said plurality of through-holes,    said each through-hole is positioned immediately beneath said each key button, and    said each key button is illuminated by the light emitted from said illuminating part by way of said each through-hole.    
     
     
         27 . The telephone terminal device of  claim 24 , 
 wherein said operation button main body is made of an elastic material.    
     
     
         28 . The telephone terminal device of  claim 24 , 
 wherein said illuminating part has a plurality of illuminating parts, and    the sectional area of said each through-hole is wider than the projection area of each illuminating part of said plurality of illuminating parts.    
     
     
         29 . The telephone terminal device of  claim 24 , 
 wherein said plurality of key buttons are arranged in three row and five lines or more.