CN201518211U - Driving and switching device for AMOLED panel - Google Patents
Driving and switching device for AMOLED panel Download PDFInfo
- Publication number
- CN201518211U CN201518211U CN2009203137208U CN200920313720U CN201518211U CN 201518211 U CN201518211 U CN 201518211U CN 2009203137208 U CN2009203137208 U CN 2009203137208U CN 200920313720 U CN200920313720 U CN 200920313720U CN 201518211 U CN201518211 U CN 201518211U
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- electronic switch
- switching device
- panel
- utility
- capacitor
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract
The utility model belongs to technical field of flat panel displays and particularly relates to a driving and switching device for an AMOLED panel, which solves the problems existing in the traditional driving device of high electrical power consumption and short service life due to heating. The main points of the technical scheme adopted by the utility model are that the driving and switching device comprises a first electronic switch, a second electronic switch, a first capacitor and a second capacitor; the input terminal of the first electronic switch is connected with a DC/DC converter chip, and the output terminal thereof is grounded through the first capacitor and connected with an OLED panel; and the input terminal of the second electronic switch is connected with the DC/DC converter chip, and the output terminal thereof is grounded through the second capacitor and connected with the OLED panel. The utility model has the benefits that the electrical power consumption is low, the service life of the AMOLED panel is prolonged, and the device is suitable for the flat panel display.
Description
Technical field
The utility model relates to display technique field, plane, relates to AMOLED panel driving switching device shifter specifically.
Background technology
In order to drive AMOLED (active-matrix Organic Light Emitting Diode) panel, the driving voltage that needs has ELVDD and ELVSS (a following modulating voltage that all is called).These modulating voltages are to produce in that drive integrated circult is inner, and to each unit supply of panel, therefore need bigger electric current, and generalized case is that the outside is appended the voltage generation circuit of lighting a lamp separately and provided.The voltage generation circuit of lighting a lamp is to use the DC/DC conversion chip to finish, and it can be by regulating the size that duty is recently regulated output voltage, and the voltage of exporting from the DC/DC conversion chip uses as a modulating voltage.Adopt this mode, the power supply of each unit of panel can be met, but because the DC/DC conversion chip continue to be given the power supply of OLED (Organic Light Emitting Diode) panel, therefore causes power consumption big, and causes the heating of DC/DC conversion chip and reduction serviceable life.
The utility model content
Technical problem to be solved in the utility model is: a kind of AMOLED panel driving switching device shifter is provided, and it is big to solve traditional drive unit power consumption, because of heating causes the problem that serviceable life is short.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: AMOLED panel driving switching device shifter comprises first electronic switch, second electronic switch, first electric capacity and second electric capacity; The described first electronic switch input end connects the DC/DC conversion chip, and output terminal is by first capacity earth, and the connection oled panel; The described second electronic switch input end connects the DC/DC conversion chip, and output terminal is by second capacity earth, and the connection oled panel.
Described first electronic switch, second electronic switch are the contact-type electronic switch.
Described contact-type electronic switch is a midget relay.
The beneficial effects of the utility model are: power consumption is little, prolong AMOLED panel serviceable life.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model embodiment.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
The utility model has increased energy recovery circuit on the basis of existing technology, by being switched on or switched off of the switching device in the energy recovery circuit electric capacity is carried out charge and discharge, and assurance electric capacity is to the continued power of oled panel, so just can reduce power consumption, also reduced thermal value from another point of view, prolonged the AMOLED panel effect in serviceable life thereby reach.
Embodiment:
As shown in Figure 1, the AMOLED panel driving switching device shifter in this example comprises the first electronic switch a, the second electronic switch c, the first electric capacity b and the second electric capacity d; The described first electronic switch a input end connects the DC/DC conversion chip, and output terminal is by the first electric capacity b ground connection, and the connection oled panel; The described second electronic switch c input end connects the DC/DC conversion chip, and output terminal is by the second electric capacity d ground connection, and the connection oled panel.The first electronic switch a, the second electronic switch c all can adopt contact-type electronic switch (as: midget relay).
Its principle of work is: output voltage ELVDD1, the ELVSS1 of DC/DC conversion chip carries out charge and discharge by connection or the disconnection of the first electronic switch a, the second electronic switch c to the first electric capacity b, the second electric capacity d, also can continue oled panel to be powered when output voltage ELVDD1, ELVSS1 disconnect when the first electronic switch a, the second electronic switch c disconnect by output voltage ELVDD2, ELVSS2, reduced the power-on time of DC/DC conversion chip, promptly reduced power consumption, also bring the effect that reduces its heating, thereby increase the service life.
Claims (3)
1.AMOLED the panel driving switching device shifter is characterized in that: comprise first electronic switch, second electronic switch, first electric capacity and second electric capacity; The described first electronic switch input end connects the DC/DC conversion chip, and output terminal is by first capacity earth, and the connection oled panel; The described second electronic switch input end connects the DC/DC conversion chip, and output terminal is by second capacity earth, and the connection oled panel.
2. AMOLED panel driving switching device shifter as claimed in claim 1 is characterized in that: described first electronic switch, second electronic switch are the contact-type electronic switch.
3. AMOLED panel driving switching device shifter as claimed in claim 2 is characterized in that: described contact-type electronic switch is a midget relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203137208U CN201518211U (en) | 2009-10-30 | 2009-10-30 | Driving and switching device for AMOLED panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203137208U CN201518211U (en) | 2009-10-30 | 2009-10-30 | Driving and switching device for AMOLED panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518211U true CN201518211U (en) | 2010-06-30 |
Family
ID=42498934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203137208U Expired - Fee Related CN201518211U (en) | 2009-10-30 | 2009-10-30 | Driving and switching device for AMOLED panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201518211U (en) |
-
2009
- 2009-10-30 CN CN2009203137208U patent/CN201518211U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20171030 |