GB1504822A - Time display apparatus for an electronic timepiece - Google Patents
Time display apparatus for an electronic timepieceInfo
- Publication number
- GB1504822A GB1504822A GB3721776A GB3721776A GB1504822A GB 1504822 A GB1504822 A GB 1504822A GB 3721776 A GB3721776 A GB 3721776A GB 3721776 A GB3721776 A GB 3721776A GB 1504822 A GB1504822 A GB 1504822A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- display
- sept
- arrays
- substrate
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
- G04G9/04—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
- G04G9/045—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes provided with date indication
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08
- G04G9/0088—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08 by controlling light sources, e.g. electroluminescent diodes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
Abstract
1504822 Alpha numeric and matrix display DAINI SEIKOSHA KK 8 Sept 1976 [12 Sept 1975 16 Sept 1975] 37217/76 Heading G5C [Also in Division G3] An electro-optical display for an electronic timepiece uses a first polar array of elements h to indicate the hours and a second polar array of elements m which, together with the elements h, are used to indicate minutes, and each of the elements lies in a respective recess 7 in one face of a substrate 6. The elements are arranged in concentric rings, an aligned pair of elements being energized to simulate a minute hand, and an inner element only for the hour hand. As shown a two-digita date display using elements D, 10D is provided within the rings. The use of liquid crystal elements or lamps is envisaged, but the elements shown are LEDs mounted in the substrate by moulding material 8 (which may have a different refractive index from that of the substrate) or by their terminals (Fig. 7, not shown). The recesses may be corrugated as shown or lined with fluorescent paint (Fig. 5, not shown). Multiplexed circuitry for the display elements is described. In the digital date display, the units and tens arrays have respective common connections which are alternately connected to ground under control of a flip-flop (80, Fig. 11, not shown). Some of the segment connections are connected together, both within and between the arrays, and the segment signals are fed to a driver (77) by a time sharing circuit (76) controlled by the flip-flop (80). In the polar arrays, each array is divided into six groups of ten elements, each group having a common connection and the corresponding elements in each group being connected together (Fig. 10, not shown).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50110597A JPS5234767A (en) | 1975-09-12 | 1975-09-12 | Time display device in electronic watches |
JP50111820A JPS5235668A (en) | 1975-09-16 | 1975-09-16 | Time display device in electronics watches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1504822A true GB1504822A (en) | 1978-03-22 |
Family
ID=26450194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3721776A Expired GB1504822A (en) | 1975-09-12 | 1976-09-08 | Time display apparatus for an electronic timepiece |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1504822A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2396343A1 (en) * | 1977-07-02 | 1979-01-26 | Braun Ag | CHRONOMETER WITH DISPLAY DEVICE |
FR2398335A1 (en) * | 1977-07-21 | 1979-02-16 | Braun Ag | CHRONOMETER WITH INDICATOR OR DISPLAY |
GB2144255A (en) * | 1983-07-28 | 1985-02-27 | Secr Defence | A meter display |
FR3034211A1 (en) * | 2015-03-24 | 2016-09-30 | Bodet Sa | DIGITAL CLOCK WITH LUMINOUS PLOTS |
-
1976
- 1976-09-08 GB GB3721776A patent/GB1504822A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2396343A1 (en) * | 1977-07-02 | 1979-01-26 | Braun Ag | CHRONOMETER WITH DISPLAY DEVICE |
FR2398335A1 (en) * | 1977-07-21 | 1979-02-16 | Braun Ag | CHRONOMETER WITH INDICATOR OR DISPLAY |
GB2144255A (en) * | 1983-07-28 | 1985-02-27 | Secr Defence | A meter display |
FR3034211A1 (en) * | 2015-03-24 | 2016-09-30 | Bodet Sa | DIGITAL CLOCK WITH LUMINOUS PLOTS |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |