JPS6427145A - Chromatic picture tube - Google Patents

Chromatic picture tube

Info

Publication number
JPS6427145A
JPS6427145A JP18389987A JP18389987A JPS6427145A JP S6427145 A JPS6427145 A JP S6427145A JP 18389987 A JP18389987 A JP 18389987A JP 18389987 A JP18389987 A JP 18389987A JP S6427145 A JPS6427145 A JP S6427145A
Authority
JP
Japan
Prior art keywords
face panel
light reflectance
fluorescent substance
fluorescent
difference
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18389987A
Other languages
Japanese (ja)
Inventor
Shunji Okabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP18389987A priority Critical patent/JPS6427145A/en
Publication of JPS6427145A publication Critical patent/JPS6427145A/en
Pending legal-status Critical Current

Links

Landscapes

  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE:To suppress difference in brightness between the center and periphery and eliminate the color difference of white by providing a fluorescent substance having low light reflectance and large grain sizes in the center of a face panel, and placing a fluorescent substance with higher light reflectance and smaller grain sizes at the periphery of face panel. CONSTITUTION:Existing invention includes a black matrix layer having an opening at the inner surface of a face panel, and separate fluorescent surfaces are provided at this opening for green, blue, and red. At least one of the fluorescent surfaces has a fluorescent substance with low light reflectance and large grain size formed in the central part of the face panel, and a fluorescent substance having higher light reflectance and smaller grain size formed in the peripheral parts of the face panel. This eliminates brightness difference and white color difference between the central and peripheral parts of face panel.
JP18389987A 1987-07-22 1987-07-22 Chromatic picture tube Pending JPS6427145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18389987A JPS6427145A (en) 1987-07-22 1987-07-22 Chromatic picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18389987A JPS6427145A (en) 1987-07-22 1987-07-22 Chromatic picture tube

Publications (1)

Publication Number Publication Date
JPS6427145A true JPS6427145A (en) 1989-01-30

Family

ID=16143759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18389987A Pending JPS6427145A (en) 1987-07-22 1987-07-22 Chromatic picture tube

Country Status (1)

Country Link
JP (1) JPS6427145A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100872360B1 (en) * 2003-01-25 2008-12-05 엘지.필립스 디스플레이 주식회사 A Flat Color CRT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100872360B1 (en) * 2003-01-25 2008-12-05 엘지.필립스 디스플레이 주식회사 A Flat Color CRT

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