CN205378058U - OLED TV power power -off control circuit - Google Patents
OLED TV power power -off control circuit Download PDFInfo
- Publication number
- CN205378058U CN205378058U CN201620058360.1U CN201620058360U CN205378058U CN 205378058 U CN205378058 U CN 205378058U CN 201620058360 U CN201620058360 U CN 201620058360U CN 205378058 U CN205378058 U CN 205378058U
- Authority
- CN
- China
- Prior art keywords
- module
- power
- oled
- signal
- detection
- 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 - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 4
- 230000005611 electricity Effects 0.000 abstract 3
- 230000005281 excited state Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005283 ground state Effects 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The utility model discloses a OLED TV power power -off control circuit, it includes power module and system control module, power module includes the power failure detection module and discharges the module, works as discharging during the circuit control signal of power failure detection module and system control module transmission is accepted to the module of discharging, starts the module of discharging to the messenger discharges the module and discharges to driving voltage rapidly, the power failure detection module detects OLED display screen module and whether falls the electricity, when the electricity is fallen in the discovery, will send a signal in system control module, and system control module carries out the operation of shutting down. The utility model discloses a OLED TV power power -off control circuit can continue to discharge to driving voltage when falling the electricity, and the notice system gets into power off simultaneously, and the long term operation is relapseed to the module of avoiding discharging, damages drive circuit, furthermore, the utility model discloses a driving voltage discharged with higher speed when OLED TV power power -off control circuit was used for normally shutting down the operation, guaranteed the requirement of shutdown chronogenesis.
Description
Technical field
This utility model relates to field of television, is specifically related to a kind of OLED TV power supply shutdown control circuit.
Background technology
Along with the appearance of high-performance, integrated OLED driver circuit, OLED display device steps into TV domain.Due to the difference of OLED display device display characteristic, its power supply sequential has strict requirement.
OLED is a kind of current-injecting light-emitting display device.Its luminescence mechanism is as follows:
Outside under alive driving, hole and electronics are injected into organic material from positive pole and negative pole respectively, and hole and electronics meet in organic layer, compound, give off energy, transfer energy to the molecule of organic luminescent substance so that it is from ground state transition to excited state.Excited state is very unstable, and excited molecule returns to ground state from excited state, radiation transistion and produce luminescence phenomenon.
Two kinds of voltages are needed: one is drive the IC small signal powered to it, and one is the driving voltage powered to screen body in order to realize normal operation.Switching on and shutting down and duty are both needed to ensure that screen driver element IC driven controls, to avoid driver element erroneous discharge to cause drive circuit to damage.
Owing to OLED drives the dynamic luminescent device of owner, when picture material difference, the current difference of its driving voltage work is very big, and excursion can by more than tens milliamperes to ten amperes.The performance of power supply circuits is proposed high requirement by the electric current output of HDR.Shutdown or during power down under light load condition, driving voltage is likely to be later than driving IC and powers and drop, and now screen driver element is in uncontrollable state, in fact it could happen that driver element abnormal damage.
Utility model content
[solving the technical problem that]
The purpose of this utility model is above-mentioned prior art problem, it is provided that a kind of OLED TV power supply shutdown control circuit.This OLED TV power supply shutdown control circuit can, when finding power down, continue driving voltage is discharged, and notice system enters off-mode simultaneously；Additionally, driving voltage accelerates electric discharge when this OLED TV power supply shutdown control circuit can be used for normal shutdown operation, it is ensured that shutdown timing requirements.
[technical scheme]
In order to reach above-mentioned technique effect, this utility model takes techniques below scheme:
A kind of OLED TV power supply shutdown control circuit, it includes supply module and system control module, described supply module includes detection of power loss module and discharge module, when described discharge module accepts the discharge circuit control signal of detection of power loss module and system control module transmission, star t-up discharge module, so that driving voltage is discharged rapidly by discharge module；Described detection of power loss module detection OLED display screen module whether power down, it has been found that during power down, will send signal in system control module, and system control module performs power-off operation.
According to this utility model further technical scheme, described discharge circuit control signal is detection of power loss signal and off signal.
According to this utility model further technical scheme, described detection of power loss module detection OLED display screen module whether power down, it has been found that during power down, transmit detection of power loss signal to discharge module, after discharge module receives detection of power loss signal, rapidly driving voltage is discharged.
According to this utility model further technical scheme, when described system control module performs power-off operation, transmit off signal to discharge module, after discharge module receives off signal, rapidly driving voltage is discharged.
OLED TV power supply shutdown control circuit described above can be applicable to OLED television product.
[beneficial effect]
This utility model compared with prior art, has following beneficial effect:
OLED TV power supply shutdown control circuit of the present utility model can, when power down, continue driving voltage is discharged, and notice system enters off-mode simultaneously, it is to avoid discharge module is long-term work repeatedly, damages drive circuit；Additionally, driving voltage accelerates electric discharge when OLED TV power supply shutdown control circuit of the present utility model is for normal shutdown operation, it is ensured that shutdown timing requirements.
Accompanying drawing explanation
Fig. 1 is OLED TV power supply shutdown control circuit structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment of the present utility model, this utility model is further elaborated.
Embodiment 1:
A kind of OLED TV power supply shutdown control circuit, it includes supply module and system control module, described supply module includes detection of power loss module and discharge module, when described discharge module accepts the discharge circuit control signal of detection of power loss module and system control module transmission, star t-up discharge module, so that driving voltage is discharged rapidly by discharge module；Described detection of power loss module detection OLED display screen module whether power down, it has been found that during power down, will send signal in system control module, and system control module performs power-off operation.
Described discharge circuit control signal is detection of power loss signal and off signal.
Described detection of power loss module detection OLED display screen module whether power down, it has been found that during power down, transmit detection of power loss signal to discharge module, after discharge module receives detection of power loss signal, rapidly driving voltage is discharged.
When described system control module performs power-off operation, transmit off signal to discharge module, after discharge module receives off signal, rapidly driving voltage is discharged.
OLED TV power supply shutdown control circuit of the present utility model is applied on OLED television product, when the OLED screen module power down of this television product, detection of power loss module in this OLED TV power supply shutdown control circuit detects and transmits detection of power loss signal to discharge module, after discharge module receives detection of power loss information, rapidly driving voltage is discharged；Described detection of power loss module sends signal in system control module simultaneously, and system control module performs power-off operation after receiving signal.
When normal shutdown, system control module sends off signal to discharge module while performing power-off operation, and described discharge module accelerates electric discharge after receiving off signal, it is ensured that shutdown timing requirements.
Although reference be made herein to this utility model is described by explanatory embodiment of the present utility model, above-described embodiment is only this utility model preferably embodiment, embodiment of the present utility model is also not restricted to the described embodiments, should be appreciated that, those skilled in the art can be designed that a lot of other amendments and embodiment, and these amendments and embodiment will drop within spirit disclosed in the present application and spirit.
Claims (5)
1. an OLED TV power supply shutdown control circuit, it includes supply module and system control module, it is characterized in that described supply module includes detection of power loss module and discharge module, when described discharge module accepts the discharge circuit control signal of detection of power loss module and system control module transmission, star t-up discharge module, so that driving voltage is discharged rapidly by discharge module；Described detection of power loss module detection OLED display screen module whether power down, it has been found that during power down, will send signal in system control module, and system control module performs power-off operation.
2. OLED TV power supply shutdown control circuit according to claim 1, it is characterised in that described discharge circuit control signal is detection of power loss signal and off signal.
3. OLED TV power supply shutdown control circuit according to claim 2, it is characterized in that the detection OLED display screen module whether power down of described detection of power loss module, when finding power down, detection of power loss signal is transmitted to discharge module, after discharge module receives detection of power loss signal, rapidly driving voltage is discharged.
4. OLED TV power supply shutdown control circuit according to claim 2, it is characterised in that when described system control module performs power-off operation, transmits off signal to discharge module, after discharge module receives off signal, rapidly driving voltage is discharged.
5. the OLED TV power supply shutdown control circuit according to any one of Claims 1 to 4, it is characterised in that this OLED TV power supply shutdown control circuit is applied to OLED television product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620058360.1U CN205378058U (en) | 2016-01-21 | 2016-01-21 | OLED TV power power -off control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620058360.1U CN205378058U (en) | 2016-01-21 | 2016-01-21 | OLED TV power power -off control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205378058U true CN205378058U (en) | 2016-07-06 |
Family
ID=56273002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620058360.1U Expired - Fee Related CN205378058U (en) | 2016-01-21 | 2016-01-21 | OLED TV power power -off control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205378058U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529094A (en) * | 2017-09-25 | 2017-12-29 | 四川长虹电器股份有限公司 | Intelligent television OLED screen curtain maintenance method |
| CN108364605A (en) * | 2017-01-26 | 2018-08-03 | 上海和辉光电有限公司 | The automatic system and mobile terminal for restoring OLED display panel dispaly state |
| CN109688355A (en) * | 2018-12-27 | 2019-04-26 | 青岛海信电器股份有限公司 | A kind of display screen discharge control device of OLED TV |
| CN110942747A (en) * | 2018-09-25 | 2020-03-31 | 青岛海信电器股份有限公司 | OLED display device and control method thereof |
| US11200837B2 (en) | 2018-09-25 | 2021-12-14 | Hisense Visual Technology Co., Ltd. | OLED display device, and method for controlling the OLED display device |
-
2016
- 2016-01-21 CN CN201620058360.1U patent/CN205378058U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108364605A (en) * | 2017-01-26 | 2018-08-03 | 上海和辉光电有限公司 | The automatic system and mobile terminal for restoring OLED display panel dispaly state |
| CN107529094A (en) * | 2017-09-25 | 2017-12-29 | 四川长虹电器股份有限公司 | Intelligent television OLED screen curtain maintenance method |
| CN107529094B (en) * | 2017-09-25 | 2020-05-26 | 四川长虹电器股份有限公司 | Intelligent television OLED screen maintenance method |
| CN110942747A (en) * | 2018-09-25 | 2020-03-31 | 青岛海信电器股份有限公司 | OLED display device and control method thereof |
| CN110942747B (en) * | 2018-09-25 | 2021-06-01 | 海信视像科技股份有限公司 | OLED display device and control method thereof |
| US11200837B2 (en) | 2018-09-25 | 2021-12-14 | Hisense Visual Technology Co., Ltd. | OLED display device, and method for controlling the OLED display device |
| CN109688355A (en) * | 2018-12-27 | 2019-04-26 | 青岛海信电器股份有限公司 | A kind of display screen discharge control device of OLED TV |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205378058U (en) | OLED TV power power -off control circuit | |
| CN109410841B (en) | Pixel circuit, display device and pixel driving method | |
| CN102646386B (en) | Pixel unit circuit, pixel array, panel and panel driving method | |
| CN114758619A (en) | Pixel circuit, driving method thereof, display panel and display device | |
| CN110689840B (en) | Pixel circuit, short circuit detection method and display panel | |
| CN103280847B (en) | Power supply circuit and display device | |
| CN106655747B (en) | Power supply circuit, switching power supply system and power supply method thereof | |
| KR102044431B1 (en) | Organic Light Emitting Display and Driving Method Thereof | |
| CN105206222A (en) | Oled pixel compensation circuit and oled pixel driving method | |
| CN105139807A (en) | Pixel driving circuit, display device and driving method thereof | |
| CN101673511B (en) | Organic light emitting display device with power saving function | |
| US9384693B2 (en) | Pixel circuit and display apparatus using the same | |
| EP1887728A3 (en) | Organic light emitting display and driving method of inspection circuit of organic light emitting display | |
| CN103325335B (en) | Display and driving method thereof | |
| CN102693696A (en) | Pixel circuit structure and method for driving pixel circuit structure | |
| CN110992885B (en) | Pixel driving circuit, driving method thereof and display panel | |
| CN105656464A (en) | Off-delay type relay output circuit | |
| CN112017910A (en) | Relay drive circuit and power equipment applying same | |
| WO2022252627A1 (en) | Power supply circuit, driving apparatus and display apparatus | |
| CN101778508B (en) | Driving circuit and method of light emitting diode | |
| WO2024078014A1 (en) | Pixel drive circuit, display panel, and display device | |
| CN102542985A (en) | Organic light emitting diode display and driving method thereof | |
| CN201853468U (en) | Active matrix/organic light emitting diode (AMOLED) pixel driving circuit | |
| CN100353399C (en) | Active organic electroluminescence displaynig unit | |
| CN101546538B (en) | Latch-up protection circuit for LCD driver IC |
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: 20160706 |