JPS5619684A - Light emitting semiconductor device - Google Patents

Light emitting semiconductor device

Info

Publication number
JPS5619684A
JPS5619684A JP9461179A JP9461179A JPS5619684A JP S5619684 A JPS5619684 A JP S5619684A JP 9461179 A JP9461179 A JP 9461179A JP 9461179 A JP9461179 A JP 9461179A JP S5619684 A JPS5619684 A JP S5619684A
Authority
JP
Japan
Prior art keywords
area
luminance
segment
light emitting
reflecting plate
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
JP9461179A
Other languages
Japanese (ja)
Inventor
Katsutoshi Soejima
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
Nippon Electric Co Ltd
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, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9461179A priority Critical patent/JPS5619684A/en
Publication of JPS5619684A publication Critical patent/JPS5619684A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Led Device Packages (AREA)

Abstract

PURPOSE:To give the same luminance to the segments whose areas are different each other by varying the area of the reflecting portion corresponding to the area of the indicating segment during a process a light emitting semiconductor device is formed. CONSTITUTION:In the indicator element of the character configuration of 8 with a decimal point, the sizes of 8 segments are determined so that the area of a vertical segment is about 1-1.2 times the area of a horizontal segment depending on the general configuration of the character; and the area of the decimal point is about 0.5-0.8 times the area of the vertical segment. Therefore, if light emitting diodes having the same size and luminance are employed as a light source for each segment and reflecting plates are arranged, the horizontal segment has the luminance about 1-0.83 times that of the vertical segment, and the decimal point has the luminance about 2-1.3 times that of the vertical segment. In order to equalize the luminance, the configuration of the side wall of the reflecting plate 5 surrounding a diode 7 is varied when the reflecting plate 5 is provided on the light emitting diode 7 having a lead frame, and the reflecting plate 5 is sealed by resin 4, thereby the difference in the area of the reflecting plate 5 is essentially maintained.
JP9461179A 1979-07-25 1979-07-25 Light emitting semiconductor device Pending JPS5619684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9461179A JPS5619684A (en) 1979-07-25 1979-07-25 Light emitting semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9461179A JPS5619684A (en) 1979-07-25 1979-07-25 Light emitting semiconductor device

Publications (1)

Publication Number Publication Date
JPS5619684A true JPS5619684A (en) 1981-02-24

Family

ID=14115035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9461179A Pending JPS5619684A (en) 1979-07-25 1979-07-25 Light emitting semiconductor device

Country Status (1)

Country Link
JP (1) JPS5619684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0672262U (en) * 1993-03-19 1994-10-07 オータックス株式会社 Light emitting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0672262U (en) * 1993-03-19 1994-10-07 オータックス株式会社 Light emitting device

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