CN108364605A - The automatic system and mobile terminal for restoring OLED display panel dispaly state - Google Patents
The automatic system and mobile terminal for restoring OLED display panel dispaly state Download PDFInfo
- Publication number
- CN108364605A CN108364605A CN201710061711.3A CN201710061711A CN108364605A CN 108364605 A CN108364605 A CN 108364605A CN 201710061711 A CN201710061711 A CN 201710061711A CN 108364605 A CN108364605 A CN 108364605A
- Authority
- CN
- China
- Prior art keywords
- oled
- display panel
- driving chip
- oled display
- enable signals
- 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.)
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
Abstract
The present invention relates to display technology fields, more particularly to a kind of system of automatic recovery OLED display panel dispaly state, by the way that the general input/output port on microprocessor is connected by the OLED enable signal output ends of diode and driving chip, microprocessor is allow to monitor OLED enable signals by general input/output port, if microprocessor detects OLED enable signal failure states when terminal device is in operational mode, Restart Signal is then sent automatically reinitializes driving chip, achieve the purpose that driving chip is restarted automatically, so that OLED display panel is after of short duration blank screen (in restarting process), automatically restore original display picture, to achieve the effect that restoring OLED display panel in the case where driving chip is abnormal power down normally shows.
Description
Technical field
What it is the present invention relates to display technology field more particularly to a kind of automatic recovery OLED display panel dispaly state is
System.
Background technology
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) display technology uses organic material
Coating has self luminous characteristic.OLED display screen visible angle is big, saves electric energy, is widely applied.And OLED is aobvious
Show that the feature of device maximum is that Flexible Displays may be implemented, be made of flexible semiconductor substrate it is light-weight, it is flexible, be convenient for
The flexible display device of carrying is the important development direction of OLED display device.
Currently, when driving chip (Driver IC) driving OLED display panel (Panel) is normally shown, driving chip
It is high level (3.3V) to export OLED enable signals (En)；When encountering because of external interference (such as static discharge (Electric-
Static discharge, abbreviation ESD) interference) the case where leading to driving chip powered-off fault, OLED enable signals (En) at this time
Output is low level (GND), and OLED display panel enters black state and can not be restored automatically, this is people in the art
What member did not expected to see.
Invention content
In view of the above problems, the embodiment of the present invention discloses a kind of automatic recovery OLED display panel dispaly state
System, applied to being provided in the terminal device of microprocessor (Micro Processor Unit, abbreviation MPU), wherein described
System includes：
OLED display panel；
Driving chip is connect with the OLED display panel, to control the dispaly state of the OLED display panel and defeated
Go out OLED enable signals；
Power supply chip (Power IC), connect with the driving chip and the OLED display panel respectively, with to described
Driving chip and OLED display panel power supply, and receive the OLED enable signals (En) of the driving chip output；
And
Monitoring unit is connect with the driving chip, to monitor the OLED enable signals of the driving chip output,
And the monitoring unit is formed by the microprocessor；
Wherein, if the monitoring unit detects the driving chip output when the terminal device is in operational mode
OLED enable signals when being failure state, the microprocessor controls the driving chip restarting, to restore
State the normal display of OLED display panel.
The embodiment of the invention also discloses a kind of terminal devices, including above-mentioned automatic recovery OLED display panel to show shape
The system of state.
Foregoing invention has the following advantages that or advantageous effect：
The invention discloses a kind of system and mobile terminal of automatic recovery OLED display panel dispaly state, by will be micro-
General input/output port (General Purpose Input/Output, abbreviation GPIO) on processor passes through diode and drive
The OLED enable signal output ends connection of dynamic chip so that it is enabled that microprocessor can monitor OLED by general input/output port
Signal, it is automatic to send out if microprocessor detects that OLED enable signals are failure state when terminal device is in operational mode
It send Restart Signal to reinitialize driving chip, achievees the purpose that driving chip is restarted automatically so that OLED display panel is passing through
After crossing of short duration blank screen (in restarting process), restores original display picture automatically, be abnormal in driving chip to reach
Restore the effect that OLED display panel is normally shown in the case of power down.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, the present invention and its feature, outer
Shape and advantage will become more apparent.Identical label indicates identical part in whole attached drawings.Not can according to than
Example draws attached drawing, it is preferred that emphasis is shows the purport of the present invention.
Fig. 1 is the structural schematic diagram for the system for restoring OLED display panel dispaly state in the embodiment of the present invention automatically.
Specific implementation mode
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings, but not as the limit of the present invention
It is fixed.
As shown in Figure 1, the present embodiment is related to a kind of system of automatic recovery OLED display panel dispaly state, applied to setting
It is equipped in the terminal device of microprocessor, specifically, the system includes OLED display panel, is connect with OLED display panel, with
It controls the dispaly state of OLED display panel and exports the driving chip, aobvious with driving chip and OLED respectively of OLED enable signals
Show that panel connects, to power to driving chip and OLED display panel, and receive the OLED enable signals of driving chip output
It power supply chip and is connect with driving chip, to monitor the monitoring unit of the OLED enable signals of driving chip output, and the prison
Unit is surveyed to be formed by microprocessor；Wherein, if monitoring unit detects that driving chip is defeated when terminal device is in operational mode
When the OLED enable signals gone out are failure state, microprocessor controls driving chip restarting, to restore OLED display panel
Normal display；If certain microprocessor detects that the OLED of driving chip output is enabled when terminal device is in operational mode
When signal is effective status, then after waiting for the scheduled time cycle, continue to carry out the OLED enable signals that driving chip exports
Detection；To under the premise of not increasing the hardware cost of panel (Panel) and flexible PCB (FPC) so that OLED is shown
Panel restores original display picture, to reach in driving chip automatically after of short duration blank screen (in restarting process)
Restore the effect that OLED display panel is normally shown in the case of being abnormal power down.
In a preferred embodiment of the invention, above-mentioned failure state is that OLED enable signals are low level state,
Conversely, above-mentioned effective status is the state that OLED enable signals are high level.
In a preferred embodiment of the invention, above-mentioned OLED enable signals (En) are power supply chip outputting charge pump system
The enable signal of system input voltage (Voltage for charge pump system of Driver IC, VSP), the charge
Pumping system input voltage generates (Which generate from Power by power supply chip or pulse frequency modulated (PFM) circuit
IC or PFM)；I.e. above-mentioned OLED enable signals are the enable signal that power supply chip exports VSP voltages, and not power supply chip work
The enable signal of work.
In a preferred embodiment of the invention, the general input/output port on above-mentioned microprocessor passes through diode D1
It is connect with the OLED enable signal input terminals of the OLED enable signals output end of driving chip or power supply chip, why passes through two
Pole pipe D1 connections rather than be directly connected to, be that voltage pours in down a chimney in order to prevent；As shown in Figure 1, general input/output port and diode
The cathode connection of D1, the OLED enable signals output end of driving chip or the OLED enable signals input terminal of power supply chip and two poles
The anode of pipe D1 connects.
In a preferred embodiment of the invention, above-mentioned microprocessor is by periodically reading general input/output port
Level signal monitoring driving chip output OLED enable signals.
On this basis, further, the period of the level signal of microcomputer reads general input/output port is 1-3
Second/time (such as 1 second/time, 2 seconds/time, 2.5 seconds/time or 3 seconds/time etc.).
Below with the period of the level signal of microcomputer reads general input/output port be 2 seconds/time in the present embodiment
Microprocessor monitors the enabled letters of OLED of driving chip output by periodically reading the level signal of general input/output port
Number, and then achieve the effect that restoring OLED display panel in the case where driving chip is abnormal power down normally shows had
The description of body：
After terminal device booting, microprocessor sends Restart Signal and gives driving chip (Reset), downloads initial code to drive
Dynamic chip and OLED display panel (initial code download to Driver IC＆display) driving chip start
(reset), OLED display panel is normally shown, the OLED enable signals of the output of microcomputer reads general input/output port
Level signal (check the GPIO voltage level), later judges the level signal, if the level signal
For low level, then driving chip powered-off fault is judged, return to the step that microprocessor sends Restart Signal to driving chip (Reset)
Suddenly, if the level signal is high level, after waiting for 2s, the OLED of the output of microcomputer reads general input/output port is returned to
The step of level signal (check the GPIO voltage level) of enable signal.
In a preferred embodiment of the invention, it is provided with driving chip in above-mentioned microprocessor and restarts module, it is above-mentioned
Driving chip restarts module when microprocessor detects that the OLED enable signals of driving chip output are low level to driving core
Piece sends Restart Signal, and driving chip receives Restart Signal and executes reboot operation, to restore the normal aobvious of OLED display panel
Show.
In a preferred embodiment of the invention, above-mentioned power supply chip and microprocessor may be contained within the master of terminal device
On plate.
In a preferred embodiment of the invention, above-mentioned driving chip is set to inside OLED display panel.
In a preferred embodiment of the invention, the vdd terminal (ELVDD) of above-mentioned power supply chip connects OLED display panel
Vdd terminal (ELVDD), power supply chip the ends VSS (ELVSS) connection OLED display panel the ends VSS (ELVSS).
In addition, as seen from Figure 1, in the automatic system for restoring OLED display panel dispaly state in the present embodiment,
The VSP voltage ends of power supply chip are connected with the VSP voltage ends of driving chip, the single-line type control interface (Swire) of driving chip
It is connected with the single-line type control interface of power supply chip, mobile industry processor interface (the Mobile Industry of microprocessor
Processor Interface, abbreviation MIPI) it is connected with the mobile industry processor interface of driving chip, the drive of microprocessor
Dynamic chip is restarted module and is connected with the module of restarting of driving chip, the simulation system input voltage interface of mainboard and driving chip
Simulation system input voltage (Voltage for analog system of Driver IC, abbreviation VCI) interface connects, mainboard
I/O mouth voltage interfaces and driving chip I/O mouths voltage (Voltage for interface system of Driver
IC, abbreviation VDDIO) interface connection.
The present embodiment also discloses a kind of terminal device, including above-mentioned automatic OLED display panel dispaly state of restoring
System.
In a preferred embodiment of the invention, above-mentioned terminal device is mobile terminal device.
In a preferred embodiment of the invention, above-mentioned mobile terminal device is mobile phone or tablet computer.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as giving reality with the common mode in this field
It applies；Any technical person familiar with the field, without departing from the scope of the technical proposal of the invention, all using the disclosure above
Methods and technical content many possible changes and modifications are made to technical solution of the present invention, or be revised as equivalent variations etc.
Embodiment is imitated, this is not affected the essence of the present invention.Therefore, every content without departing from technical solution of the present invention, foundation
The technical spirit any simple modifications, equivalents, and modifications made to the above embodiment of the present invention, still fall within the present invention
In the range of technical solution protection.
Claims (12)
1. a kind of system of automatic recovery OLED display panel dispaly state, applied to the terminal device for being provided with microprocessor
In, which is characterized in that the system comprises：
OLED display panel；
Driving chip is connect with the OLED display panel, to control dispaly state and the output of the OLED display panel
OLED enable signals；
Power supply chip is connect with the driving chip and the OLED display panel respectively, with to the driving chip and described
OLED display panel is powered, and receives the OLED enable signals of the driving chip output；And
Monitoring unit is connect with the driving chip, to monitor the OLED enable signals of the driving chip output, and institute
Monitoring unit is stated to be formed by the microprocessor；
Wherein, if the monitoring unit detects the institute of the driving chip output when the terminal device is in operational mode
When to state OLED enable signals be failure state, the microprocessor controls the driving chip restarting, described in recovery
The normal display of OLED display panel.
2. the automatic system for restoring OLED display panel dispaly state as described in claim 1, which is characterized in that the failure
State is that the level of the OLED enable signals is low level state.
3. the automatic system for restoring OLED display panel dispaly state as described in claim 1, which is characterized in that the OLED
Enable signal is the enable signal of the power supply chip output charge pumping system input voltage.
4. the automatic system for restoring OLED display panel dispaly state as described in claim 1, which is characterized in that micro- place
It manages general input/output port on device and passes through the OLED enable signals output end of diode and the driving chip or described
The OLED enable signals input terminal of power supply chip connects, and the cathode of the general input/output port and the diode connects
It connects, the OLED enable signals output end of the driving chip or the OLED enable signals input terminal of power supply chip and institute
State the anode connection of diode.
5. the automatic system for restoring OLED display panel dispaly state as claimed in claim 4, which is characterized in that micro- place
Reason device is monitored by periodically reading the level signal of the general input/output port described in the driving chip output
OLED enable signals.
6. the automatic system for restoring OLED display panel dispaly state as claimed in claim 5, which is characterized in that micro- place
The period that reason device reads the level signal of the general input/output port is 1-3 seconds/time.
7. the automatic system for restoring OLED display panel dispaly state as described in claim 1, which is characterized in that micro- place
It is provided with driving chip in reason device and restarts module, the driving chip restarts module and detects the driving in the microprocessor
When the OLED enable signals of chip output are failure state Restart Signal, the driving chip are sent to the driving chip
It receives the Restart Signal and executes reboot operation, to restore the normal display of the OLED display panel.
8. the automatic system for restoring OLED display panel dispaly state as described in claim 1, which is characterized in that the power supply
Chip and the microprocessor may be contained on the mainboard of the terminal device.
9. the automatic system for restoring OLED display panel dispaly state as described in claim 1, which is characterized in that the driving
Chip is set to inside the OLED display panel.
10. a kind of terminal device, which is characterized in that restore OLED automatically including such as claim 1~9 any one of them and show
The system of Display panel state.
11. terminal device as claimed in claim 10, which is characterized in that the terminal device is mobile terminal device.
12. terminal device as claimed in claim 11, which is characterized in that the mobile terminal device is mobile phone or tablet electricity
Brain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710061711.3A CN108364605A (en) | 2017-01-26 | 2017-01-26 | The automatic system and mobile terminal for restoring OLED display panel dispaly state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710061711.3A CN108364605A (en) | 2017-01-26 | 2017-01-26 | The automatic system and mobile terminal for restoring OLED display panel dispaly state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108364605A true CN108364605A (en) | 2018-08-03 |
Family
ID=63009899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710061711.3A Pending CN108364605A (en) | 2017-01-26 | 2017-01-26 | The automatic system and mobile terminal for restoring OLED display panel dispaly state |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686340A (en) * | 2019-03-19 | 2019-04-26 | 南京中电熊猫平板显示科技有限公司 | A kind of liquid crystal display panel |
| CN111429845A (en) * | 2020-04-30 | 2020-07-17 | 京东方科技集团股份有限公司 | Power management integrated circuit, driving method, circuit board and display device |
| TWI717965B (en) * | 2020-01-08 | 2021-02-01 | 敦泰電子股份有限公司 | Display module, display driver integrated circuit and restarting method for display driver integrated circuit when abnormal voltage occurs |
| CN112309308A (en) * | 2020-11-18 | 2021-02-02 | 京东方科技集团股份有限公司 | Display device, driving method thereof and display system |
| CN113257188A (en) * | 2021-06-28 | 2021-08-13 | 南京初芯集成电路有限公司 | Device and method for controlling TFT screen backlight in OLED control panel system |
| CN113470585A (en) * | 2021-04-07 | 2021-10-01 | 惠州市德赛西威汽车电子股份有限公司 | Protection circuit and method for preventing continuous black screen of LCD screen |
| WO2021232858A1 (en) * | 2020-05-19 | 2021-11-25 | 深圳Tcl数字技术有限公司 | Display data transmission method, display device and nonvolatile storage medium |
| CN114639349A (en) * | 2022-03-24 | 2022-06-17 | 京东方科技集团股份有限公司 | Display control module and display device |
| WO2023039869A1 (en) * | 2021-09-14 | 2023-03-23 | 武汉华星光电技术有限公司 | Display panel and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945652A (en) * | 2012-11-27 | 2013-02-27 | 广东欧珀移动通信有限公司 | Method and system for solving abnormal display of display screen |
| CN103117048A (en) * | 2012-12-04 | 2013-05-22 | 深圳市金立通信设备有限公司 | Liquid crystal display (LCD) static blank screen recovering method and device |
| WO2014107551A1 (en) * | 2013-01-04 | 2014-07-10 | Cree, Inc. | Lighting fixture with integral circuit protection |
| CN204256036U (en) * | 2014-10-13 | 2015-04-08 | 国网山东省电力公司青岛供电公司 | The power-off signal that power supply interrupts produces circuit |
| CN104882103A (en) * | 2015-05-11 | 2015-09-02 | 深圳天珑无线科技有限公司 | Latch-up effect recovering circuit and liquid crystal display device |
| CN105185330A (en) * | 2015-09-02 | 2015-12-23 | 京东方科技集团股份有限公司 | Display apparatus and driving method |
| CN205378058U (en) * | 2016-01-21 | 2016-07-06 | 四川长虹电器股份有限公司 | OLED TV power power -off control circuit |
-
2017
- 2017-01-26 CN CN201710061711.3A patent/CN108364605A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945652A (en) * | 2012-11-27 | 2013-02-27 | 广东欧珀移动通信有限公司 | Method and system for solving abnormal display of display screen |
| CN103117048A (en) * | 2012-12-04 | 2013-05-22 | 深圳市金立通信设备有限公司 | Liquid crystal display (LCD) static blank screen recovering method and device |
| WO2014107551A1 (en) * | 2013-01-04 | 2014-07-10 | Cree, Inc. | Lighting fixture with integral circuit protection |
| CN204256036U (en) * | 2014-10-13 | 2015-04-08 | 国网山东省电力公司青岛供电公司 | The power-off signal that power supply interrupts produces circuit |
| CN104882103A (en) * | 2015-05-11 | 2015-09-02 | 深圳天珑无线科技有限公司 | Latch-up effect recovering circuit and liquid crystal display device |
| CN105185330A (en) * | 2015-09-02 | 2015-12-23 | 京东方科技集团股份有限公司 | Display apparatus and driving method |
| CN205378058U (en) * | 2016-01-21 | 2016-07-06 | 四川长虹电器股份有限公司 | OLED TV power power -off control circuit |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686340A (en) * | 2019-03-19 | 2019-04-26 | 南京中电熊猫平板显示科技有限公司 | A kind of liquid crystal display panel |
| TWI717965B (en) * | 2020-01-08 | 2021-02-01 | 敦泰電子股份有限公司 | Display module, display driver integrated circuit and restarting method for display driver integrated circuit when abnormal voltage occurs |
| CN111429845A (en) * | 2020-04-30 | 2020-07-17 | 京东方科技集团股份有限公司 | Power management integrated circuit, driving method, circuit board and display device |
| WO2021232858A1 (en) * | 2020-05-19 | 2021-11-25 | 深圳Tcl数字技术有限公司 | Display data transmission method, display device and nonvolatile storage medium |
| CN112309308A (en) * | 2020-11-18 | 2021-02-02 | 京东方科技集团股份有限公司 | Display device, driving method thereof and display system |
| CN112309308B (en) * | 2020-11-18 | 2023-07-28 | 京东方科技集团股份有限公司 | Display device, driving method thereof and display system |
| CN113470585A (en) * | 2021-04-07 | 2021-10-01 | 惠州市德赛西威汽车电子股份有限公司 | Protection circuit and method for preventing continuous black screen of LCD screen |
| CN113257188A (en) * | 2021-06-28 | 2021-08-13 | 南京初芯集成电路有限公司 | Device and method for controlling TFT screen backlight in OLED control panel system |
| CN113257188B (en) * | 2021-06-28 | 2021-09-17 | 南京初芯集成电路有限公司 | Device and method for controlling TFT screen backlight in OLED control panel system |
| WO2023039869A1 (en) * | 2021-09-14 | 2023-03-23 | 武汉华星光电技术有限公司 | Display panel and display device |
| CN114639349A (en) * | 2022-03-24 | 2022-06-17 | 京东方科技集团股份有限公司 | Display control module and display device |
| CN114639349B (en) * | 2022-03-24 | 2023-12-22 | 京东方科技集团股份有限公司 | Display control module and display device |
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