1. A display apparatus comprising:
a board;
a driving circuit mounted on the board in a display region;
a coating film which coats the driving circuit;
a display unit including a plurality of optical elements which are arrayed as pixels on the coating film in the display region, and which are driven by the driving circuit;
a plurality of current lines; and
a plurality of voltage source scan lines;
wherein each of the optical elements comprises an organic electroluminescent element which includes a pair of electrodes and which emits light in a direction away from the board in accordance with a current that flows between the pair of electrodes,
wherein the display further comprises, for each of the optical elements, a current storage circuit which stores current data corresponding to a value of a storage current which flows through one of the current lines during a selection period of the optical element and which supplies a display current having a value substantially equal to the value of the storage current to the optical element during a nonselection period of the optical element in accordance with the current data stored during the selection period,
wherein the current storage circuit for each of the optical elements is connected to one of the voltage source scan lines, and a voltage to supply the display current to the optical element is output to the voltage scan lines,
wherein one end of a current path of the current storage circuit is connected to the optical element, and the other end of the current path is connected to said one of the voltage source scan lines,
wherein the driving circuit comprises a voltage source driver which applies a voltage to supply the storage current to the current storage circuit during the selection period through said one of the voltage source scan lines, and which applies the voltage to supply the display current to the optical element to the current storage circuit through said one of the voltage source scan lines during the nonselection period, so as to supply the display current having the value substantially equal to the value of the storage current, which has been supplied to the current storage circuit during the selection period, in accordance with the current data stored in the current storage circuit during the selection period,
wherein one of the pair of electrodes of each of the optical elements is connected to the current storage circuit for the optical element, and the other is connected to a constant voltage source, and
wherein the voltage outputted by the voltage source driver during the selection period is not more than a potential of the constant voltage source, and the voltage outputted by the voltage source driver during the nonselection period is not less than the voltage output during the selection period and more than the potential of the constant voltage source.
2. An apparatus according to claim 1, wherein the display unit comprises a plurality of first conductive lines which are formed parallel to each other on the coating film, and a plurality of second conductive lines which are arrayed on said plurality of first conductive lines to be perpendicular to the first conductive lines and which permit light to pass,
wherein the plurality of current lines are one of the plurality of first conductive lines and the plurality of second conductive lines, and
wherein each of the organic electroluminescent elements comprises:
an electroluminescent layer which is sandwiched between a portion of one of the first conductive lines and a portion of one of the second conductive lines at a position where said one one of the first conductive lines crosses said one of the second conductive lines; and
the portion of said one of the first conductive lines and the portion of said one of the second conductive lines which sandwich the electroluminescent layer.
3. An apparatus according to claim 1, wherein the driving circuit includes a plurality of IC chips.
4. An apparatus according to claim 3, wherein the driving circuit, which is mounted on the board and coated with the coating film, comprises a CPU which controls the driving circuit.
5. An apparatus according to claim 3, wherein the driving circuit, which is mounted on the board and coated with the coating film, comprises a frame memory which temporarily stores image data.
6. An apparatus according to claim 1, wherein the display unit includes a plurality of display unit sections which execute display simultaneously.
7. An apparatus according to claim 1, wherein the display unit further comprises, for each of the optical elements, a switch circuit which supplies the storage current having a predetermined value to said one of the current lines during the selection period of the optical element and which stops supplying the current to the current line during the nonselection period of the optical element.
8. An apparatus according to claim 7, wherein the current storage circuit has a current control transistor which is connected in series with the optical element.
9. An apparatus according to claim 8, wherein the current storage circuit further comprises a capacitor which is arranged between a gate and a source of the current control transistor and into which charges are written as the current data.
10. An apparatus according to claim 7, wherein the switch circuit comprises a current path control transistor which has a current path with one end connected to the current line, which supplies the storage current to the current line during the selection period, and which stops supplying the current to the current line during the nonselection period.
11. An apparatus according to claim 7, wherein the switch circuit comprises a current data write control transistor which controls writing of the current data into the current storage circuit.
12. An apparatus according to claim 7, wherein the current storage circuit comprises a current control transistor which is connected in series with the optical element, and
wherein the switch circuit comprises a current path control transistor which supplies the storage current to the current line during the selection period, and a current data write control transistor which writes the value of the storage current that flows to the current line between a gate and a source of the current control transistor as the current data during the selection period.
13. An apparatus according to claim 7, wherein each of the pixels comprises one of the optical elements, one of the current storage circuits, and one of the switch circuits.
14. An apparatus according to claim 7, wherein the driving circuit comprises a data driver which, for each of the optical elements, supplies the storage current from the current storage circuit to the current line during the selection period.
15. An apparatus according to claim 7, further comprising a plurality of selection scan lines, to which a selection scan signal which selects the switch circuits for the optical elements is selectively output.
16. An apparatus according to claim 15, further comprising a selection scan driver which outputs the selection scan signal to the selection scan lines.
17. An apparatus according to claim 7, further comprising:
a plurality of selection scan lines to which a selection scan signal which selects the switch circuits for the optical elements is selectively output;
wherein, for each of the optical elements:
the current storage circuit comprises a current control transistor which has a current path with a first end connected to the optical element and a second end connected to one of the voltage source scan lines; and
the switch circuit comprises a current data write control transistor which has a control terminal connected to one of the selection scan lines and a current path with a first end connected to a control terminal of the current control transistor and a second end connected to one of: said one of the voltage source scan lines and said one of the selection scan lines, and a current path control transistor which has a control terminal connected to said one of the selection scan lines and a current path with a first end connected to the current line and a second end connected to the first end of the current control transistor.
18. An apparatus according to claim 17, wherein the driving circuit comprises:
a selection scan driver which outputs the selection scan signal to the selection scan lines;
a data driver which, for each of the optical elements, supplies the storage current to the current line and the current storage circuit during the selection period.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method, comprising:
generating a list of servers to monitor in a computer network through a monitoring server wherein at least one text file is input containing the list of servers;
determining a plurality of services to monitor;
transmitting the plurality of services to monitor to each of the plurality of servers, wherein a heartbeat monitor service determines the services to monitor based on registry settings by monitoring the functionalities of the plurality of servers; and
reporting an event in an event log for each of the plurality of servers that has an abnormal service status as determined through the output.
2. The method of claim 1 wherein the transmitting of the plurality of services to monitor is performed by the monitoring server at a specified service time interval.
3. The method of claim 1 comprising receiving a status message report from each of the plurality of servers, wherein the status message report is received by the monitoring server only when an abnormal condition for a service is detected.
4. The method of claim 1 wherein the plurality of services are monitored at a session layer of an Open Systems Interconnection (OSI) Model.
5. The method of claim 2 further comprising reconfiguring the specified service time interval at which the monitoring server transmits the plurality of services to monitor.
6. The method of claim 1 further comprising reconfiguring the plurality of services to be monitored at each server.
7. The method of claim 1 wherein an event is reported in the event log if an error occurred while checking a status of a service.
8. The method of claim 1 wherein an event is reported in the event log if a status of a service is other than running.
9. The method of claim 1 wherein an event is reported in the event log at a start of the monitoring of the services for each server.
10. The method of claim 1 wherein an event is reported in the event log at an end of the monitoring of the services for each server.
11. A non-transitory computer program product comprising a computer readable medium having computer readable code embedded therein, the computer readable medium comprising:
program instructions that generate a list of servers in a computer network through a monitoring server, wherein at least one text file is input containing the list of servers;
program instructions that determine a plurality of services to monitor;
program instructions that transmit the plurality of services to monitor to each of the plurality of servers, wherein a heartbeat monitor service determines the services to monitor based on registry settings by monitoring the functionalities of the plurality of servers; and
program instructions that report an event in an event log for each of the plurality of servers that has an abnormal service status as determined through the output.
12. The non-transitory computer program product of claim 11 wherein the program instructions that transmit the plurality of services to monitor are executed at a specified service time interval.
13. The non-transitory computer program product of claim 11 further comprising instructions program instructions that receive a status message report from each of the plurality of servers, wherein the program instructions that receive a status message report only receive the status message report when an abnormal condition for a service is detected.
14. The non-transitory computer program product of claim 11 wherein the plurality of services are monitored at the session layer of an Open Systems Interconnection (OSI) Model.
15. The non-transitory computer program product of claim 12 further comprising program instructions that reconfigure the specified service time interval at which the monitoring server transmits the plurality of services to monitor.
16. The non-transitory computer program product of claim 11 further comprising program instructions that reconfigure the plurality of services to be monitored at each server.
17. The non-transitory computer program product of claim 11 wherein the program instructions that report an event write an event in the event log if an error occurred while checking the status of a service.
18. The non-transitory computer program product of claim 11 wherein the program instructions that report an event write an event in the event log if the status of a service is other than running.
19. The non-transitory computer program product of claim 11 wherein the program instructions that report an event write an event in the event log at a start of the monitoring of the services for each server.
20. The non-transitory computer program product of claim 11 wherein the program instructions that report an event write an event in the event log at an end of the monitoring of the services for each server.
21. A system, comprising:
a processor; and
memory communicably coupled to the processor;
wherein the processor:
generates a list of servers to monitor in a computer network through a monitoring server, wherein at least one text file is input that contains the list of servers,
determines a plurality of services to monitor;
transmits the plurality of services to monitor to each of the plurality of servers, wherein a heartbeat monitor service determines the services to monitor is determined based on registry settings by monitoring the functionalities of the plurality of servers; and
reports an event in an event log for each of the plurality of servers that has an abnormal service status as determined through the output.
22. The system of claim 21 wherein the plurality of services to monitor occurs at a specified service time interval.
23. The system of claim 21 wherein the processor receives a status message report from each of the plurality of servers, wherein the status message report is received when an abnormal condition for a service is detected.
24. The system of claim 22 wherein the processor reconfigures the specified service time interval at which the plurality of services to monitor is transmitted.
25. The system of claim 22 wherein the processor reconfigures the plurality of services to be monitored at each server.
26. The system of claim 21 wherein the processor that writes the event writes an event in the event log if an error occurred while checking the status of a service.
27. The system of claim 21 wherein the processor that reports the event writes an event in the event log if the status of a service is other than running.
28. The system of claim 21 wherein the processor that reports an event writes an event in the event log at a start of the monitoring of the services for each server.
29. The system of claim 21 wherein the processor that reports an event writes an event in the event log at an end of the monitoring of the services for each server.