(19)
(11) EP 1 122 984 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.02.2003 Bulletin 2003/07

(43) Date of publication A2:
08.08.2001 Bulletin 2001/32

(21) Application number: 00305900.3

(22) Date of filing: 12.07.2000
(51) International Patent Classification (IPC)7: H05B 33/26
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 04.02.2000 CN 00201695

(71) Applicant: Ritek Corporation
Hsinchu Hsien (TW)

(72) Inventors:
  • Wang, Shaw-Jong
    Hsinchu (TW)
  • Shen, Chi-Jung
    Chong Ho, Taipei (TW)

(74) Representative: O'Connell, David Christopher et al
Haseltine Lake & Co., Imperial House, 15-19 Kingsway
London WC2B 6UD
London WC2B 6UD (GB)

   


(54) Long-life type colorful electroluminescent display panel


(57) A long-life type colorful electroluminescent (EL) display panel is disclosed. The EL display panel comprises a luminescent laminate, two electrodes located at the two sides of the luminescent laminate, several terminals, and a display surface. One (1) of the two electrodes includes plural separated sub-electrodes (10,20). Each sub-electrode (10,20) comprises at least one branch portion (11) and a bus bar (19) connecting at least one branch portion (11) to one of the terminals. Each of the branch portions (11) in one sub-electrode (10) is accompanied with one branch portion (21) in a sub-electrode (20) different from the one sub-electrode (10), and extends in parallel thereto in a position corresponding to a portion of the display surface which is representative of substantially the same area. By means of the above structure, the display panel will have a life span more than double the normal and can display colorfully.






Search report