JPS5619684A - Light emitting semiconductor device - Google Patents
Light emitting semiconductor deviceInfo
- 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
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.
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)
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 |
-
1979
- 1979-07-25 JP JP9461179A patent/JPS5619684A/en active Pending
Cited By (1)
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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