(19)
(11) EP 1 821 330 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
17.10.2007 Bulletin 2007/42

(43) Date of publication:
22.08.2007 Bulletin 2007/34

(21) Application number: 07102431.9

(22) Date of filing: 15.02.2007
(51) International Patent Classification (IPC): 
H01J 29/06(2006.01)
 H01J 31/12(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 20.02.2006 KR 20060016404

(71) Applicant: Samsung SDI Co., Ltd.
Suwon-si Gyeonggi-do (KR)

(72) Inventors:
  • AHN, Sang-Hyuck Legal & IP Team,Samsung SDI Co.Ltd
    Kyunggi-do (KR)
  • LEE, Sang-Jo Legal & IP Team, Samsung SDI Co., LTD
    Kyunggi-do (KR)
  • JEA, Byung-Gil Legal & IP Team,Samsung SDI Co.Ltd
    Kyunggi-do (KR)
  • JEON, Sang-Ho Legal & IP Team,Samsung SDI Co.Ltd
    Kyunggi-do (KR)
  • HONG, Su-Bong Legal & IP Team, Samsung SDI Co.Ltd
    Kyunggi-do (KR)
  • CHO, Jin-Hui Legal & IP Team, Samsung SDI Co., LTD
    Kyunggi-do (KR)

(74) Representative: Hengelhaupt, Jürgen et al
Anwaltskanzlei Gulde Hengelhaupt Ziebig & Schneider Wallstrasse 58/59
10179 Berlin
10179 Berlin (DE)

   


(54) Electron emission device and electron emission display using the same


(57) An electron emission device includes a substrate, first electrodes formed on the substrate, electron emission regions electrically connected to the first electrodes, and second electrodes placed over the first electrodes such that the second electrodes are insulated from the first electrodes. The second electrodes have openings to expose the electron emission regions. A third electrode is placed over the second electrodes such that the third electrode is insulated from the second electrodes. The third electrode has openings communicating with the openings of the second electrodes. Each of the electron emission regions and the second electrodes simultaneously satisfy the following conditions:




where D1 indicates the width of each of the openings of the second electrode, and D2 indicates the width of each of the electron emission regions.