1. An organic light emitting diode display having a short detecting circuit, the display comprising:
a pixel unit including pixels coupled to scan lines and data lines;
a DC-DC converter configured to output a first power voltage and a second power voltage in response to a start signal;
a first power source line and a second power source line configured to supply the first power voltage and the second power voltage from the DC-DC converter to the pixel unit; and
a short detecting circuit configured to determine whether the first power source line and the second power source line are shorted, wherein the short detecting circuit is configured to supply the start signal to the DC-DC converter if the first power source line and the second power source line are not shorted, wherein the short detecting circuit includes:
a voltage outputting unit configured to apply a sensing voltage to the first power source line, and
a controller configured to compare a voltage of the second power source line with a reference voltage and to supply the start signal to the DC-DC converter if the voltage of the second power source line is less than the reference voltage.
2. The organic light emitting diode display as claimed in claim 1, wherein the pixels included in the pixel unit receive the first power voltage and the second power voltage.
3. The organic light emitting diode display as claimed in claim 1, wherein the first power voltage has a higher voltage than the second power voltage.
4. The organic light emitting diode display as claimed in claim 1, further comprising:
a scan driver for supplying scan signals to the pixels through the scan lines; and
a data driver for supplying data signals to the pixels through the data lines.
5. The organic light emitting diode display as claimed in claim 4, wherein the short detecting circuit is included in the scan driver or the data driver.
6. The organic light emitting diode display as claimed in claim 1, wherein the DC-DC converter is turned on if the start signal is supplied in a low state.
7. A method of driving an organic light emitting diode display, comprising:
applying a sensing voltage to a first power source line;
detecting a voltage of a second power source line to compare the voltage of the second power source line with a reference voltage; and
supplying a start signal to a DC-DC converter if the voltage of the second power source line is less than the reference voltage.
8. The method as claimed in claim 7, further comprising:
the DC-DC converter outputting a first power voltage and a second power voltage to a first power source line and a second power source line, respectively.
9. The method as claimed in claim 8, further comprising supplying the first power voltage and the second power voltage to pixels included in a pixel unit through the first power source line and the second power source line.
10. The method as claimed in claim 9, wherein the first power voltage has a higher value than the second power voltage.
11. The method as claimed in claim 8, wherein the DC-DC converter is turned on if the start signal is supplied in a low state.
12. An organic light emitting diode display having a short detecting circuit, the display comprising:
a pixel unit including pixels coupled to scan lines and data lines;
a DC-DC converter for conditionally outputting a first and second power voltages to first and second power source lines, the first and second power source lines respectively supplying the first and second power voltages to the pixel unit; and
a short detecting circuit for determining whether the first power source line and the second power source line are shorted, wherein the short detecting circuit is configured to supply a signal to the DC-DC converter indicating whether the first and second power source lines are shorted,
wherein the DC-DC converter is configured to output the first and second power voltages if the first and second power source lines are not shorted, wherein the short detecting circuit includes:
a voltage outputting unit configured to apply a sensing voltage to the first power source line, and
a controller configured to compare a voltage of the second power source line with a reference voltage and to supply the signal to the DC-DC converter based on the comparison.
13. The organic light emitting diode display as claimed in claim 12, wherein the pixels included in the pixel unit receive the first power voltage and the second power voltage.
14. The organic light emitting diode display as claimed in claim 12, wherein the first power voltage has a higher voltage than the second power voltage.
15. The organic light emitting diode display as claimed in claim 12, further comprising:
a scan driver for supplying scan signals to the pixels through the scan lines; and
a data driver for supplying data signals to the pixels through the data lines.
16. The organic light emitting diode display as claimed in claim 15, wherein the short detecting circuit is included in the scan driver or the data driver.
17. The organic light emitting diode display as claimed in claim 12, wherein the DC-DC converter is configured to not output the first and second power voltages if the first and second power source lines are shorted.
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 for producing an optical article, comprising:
forming a first layer that is light-transmissive on an optical substrate directly or with another layer in between; and
reducing the resistance of at least a portion of a surface layer of the first layer by ion-assisted deposition of at least one composition selected from the group consisting of titanium, niobium, oxides of titanium, and oxides of niobium.
2. A method for producing an optical article according to claim 1, wherein the reducing step includes mixing titanium, niobium, and oxygen in at least a portion of the surface layer of the first layer.
3. A method for producing an optical article according to claim 1, wherein the reducing step includes titanium-niobium-oxidizing at least a portion of the surface layer of the first layer.
4. A method for producing an optical article according to claim 1, wherein
the first layer is a layer containing an oxide of titanium, and
the reducing step includes ion-assisted deposition of niobium or an oxide thereof.
5. A method for producing an optical article according to claim 1, wherein
the first layer is a layer containing an oxide of niobium, and
the reducing step includes ion-assisted deposition of titanium or an oxide thereof.
6. A method for producing an optical article according to claim 1, wherein
the first layer is an oxide layer containing no titanium or niobium, and
the reducing step includes:
ion-assisted deposition of titanium or an oxide of titanium, followed by ion-assisted deposition of niobium or an oxide of niobium; or
ion-assisted deposition of niobium or an oxide of niobium, followed by ion-assisted deposition of titanium or an oxide of titanium.
7. A method for producing an optical article according to claim 1, wherein the first layer is a layer included in an antireflection layer with a multilayer structure.
8. A method for producing an optical article according to claim 7, further comprising forming an antifouling layer on the first layer directly or with another layer in between.
9. A method for producing an optical article according to claim 1, wherein the optical substrate is a plastic lens substrate.
10. A method for producing an optical article according to claim 9, wherein the optical article is a spectacle lens.