CN110010069A - Shield lower light source drive control method and terminal device - Google Patents
Shield lower light source drive control method and terminal device Download PDFInfo
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- CN110010069A CN110010069A CN201910252545.4A CN201910252545A CN110010069A CN 110010069 A CN110010069 A CN 110010069A CN 201910252545 A CN201910252545 A CN 201910252545A CN 110010069 A CN110010069 A CN 110010069A
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- driving
- illuminating source
- transmitting
- light pulse
- terminal device
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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]
- G09G3/3225—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] using an active matrix
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The present invention provides light source drive control method and terminal device under a kind of screen, and the terminal device includes: the active matrix organic light-emitting diode AMOLED panel with pixel transistor, pixel-driving circuit and driving chip；For driving the driving power of the AMOLED panel；And it is set to the illuminating source below the AMOLED panel；The described method includes: controlling the illuminating source in the case where the pixel transistor is in the open state and being in close state；In the case where the pixel transistor is in close state, the transmitting that the illuminating source completes light pulse is controlled.It can be seen that, the working time of the time for shielding lower illuminating source transmitting light pulse and screen pixels transistor are staggered by the embodiment of the present invention, in this way, when shielding lower illuminating source transmitting light pulse, pixel transistor does not power on, so as to avoid the electrology characteristic of pixel transistor because the irradiation of light pulse shifts, and then the display effect of AMOLED panel can be improved.
Description
Technical field
The present embodiments relate to a kind of light source drive control methods under field of communication technology more particularly to screen and terminal to set
It is standby.
Background technique
For shielding terminal device comprehensively, as shown in Figure 1, the visible lamp of terminal device, Llight-Emitting Diode
The illuminating sources such as (light emitting diode, LED) lamp, infrared light are arranged in the lower section of screen, what illuminating source issued include visible light,
The light of each wave band including infrared light is gone out across screen emissions, in order to be reflected back across screen by camera, optics
The equipment such as sensor receive, for various functional developments, such as recognition of face.
However, for active matrix organic light-emitting diode (Active-Matrix Organic Light-Emitting
Diode, AMOLED) panel, AMOLED panel is in running order, screen (Panel) interior pixel transistor be in voltage or
Under electric current driving.Infrared lamp (by taking the illuminating source under AMOLED panel is infrared lamp as an example), which is opened, to shine, the crystal in work
Pipe absorbs infrared light, the photoelectric effect, infrared heating effect the effects of under, AMOLED panel is brilliant by the pixel in infrared radiation region
Body pipe electrology characteristic shifts, inconsistent with non-irradiated regions, and AMOLED panel is caused to show unevenly, display effect compared with
Difference.
Summary of the invention
The embodiment of the present invention provides light source drive control method and terminal device under a kind of screen, to solve to shine under existing screen
Light source driving method causes AMOLED panel to show unevenly, the poor problem of display effect.
To solve the above problems, the present invention is implemented as follows:
In a first aspect, it is applied to terminal device the embodiment of the invention provides a kind of light source drive control method under screen,
It is characterized in that, the terminal device includes: that the active matrix with pixel transistor, pixel-driving circuit and driving chip is organic
Light emitting diode AMOLED panel；For driving the driving power of the AMOLED panel；And it is set to the face AMOLED
Illuminating source below plate；
The described method includes:
In the case where the pixel transistor is in the open state, controls the illuminating source and be in close state；
In the case where the pixel transistor is in close state, the hair that the illuminating source completes light pulse is controlled
It penetrates.
Second aspect, the embodiment of the present invention also provide a kind of terminal device, and the terminal device includes: with pixel transistor
The active matrix organic light-emitting diode AMOLED panel of pipe, pixel-driving circuit and driving chip；It is described for driving
The driving power of AMOLED panel；And it is set to the illuminating source of the AMOLED below the panel；
The terminal device includes:
First control module, for controlling the luminous light in the case where the pixel transistor is in the open state
Source is in close state；
Second control module, for controlling the luminous light in the case where the pixel transistor is in close state
The transmitting of source completion light pulse.
The third aspect, the embodiment of the present invention also provide a kind of terminal device, the terminal device include processor, memory and
It is stored in the computer program that can be run on the memory and on the processor, the computer program is by the processing
The step of shielding lower light source drive control method as described above is realized when device executes.
Fourth aspect, the embodiment of the present invention also provide a kind of computer readable storage medium, the computer-readable storage medium
It is stored with computer program in matter, light source driving control under as described above shield is realized when the computer program is executed by processor
The step of method processed.
In embodiments of the present invention, the terminal device includes: with pixel transistor, pixel-driving circuit and driving core
The active matrix organic light-emitting diode AMOLED panel of piece；For driving the driving power of the AMOLED panel；And it sets
The illuminating source being placed in below the AMOLED panel；The described method includes: in the open state in the pixel transistor
In the case of, it controls the illuminating source and is in close state；In the case where the pixel transistor is in close state, control
The illuminating source completes the transmitting of light pulse.As it can be seen that the embodiment of the present invention will shield the time of lower illuminating source transmitting light pulse
Be staggered with the working time of screen pixels transistor, in this way, when shielding lower illuminating source transmitting light pulse, pixel transistor not on
So as to avoid the electrology characteristic of pixel transistor because the irradiation of light pulse shifts, and then AMOLED can be improved in electricity
The display effect of panel.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needed in being described below to the embodiment of the present invention
Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic diagram of the setting position of screen and illuminating source provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of screen provided in an embodiment of the present invention；
Fig. 3 is one of the driving schematic diagram of screen that inventive embodiments provide；
Fig. 4 is one of the schematic diagram of drive waveforms provided in an embodiment of the present invention；
Fig. 5 is the two of the driving schematic diagram of screen provided in an embodiment of the present invention；
Fig. 6 is one of the flow chart of light source drive control method under screen provided in an embodiment of the present invention；
Fig. 7 is two of the flow chart of light source drive control method under screen provided in an embodiment of the present invention；
Fig. 8 is the two of the schematic diagram of drive waveforms provided in an embodiment of the present invention；
Fig. 9 is one of the structure chart of terminal device provided in an embodiment of the present invention；
Figure 10 is the two of the structure chart of terminal device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Term " first ", " second " in the application etc. are to be used to distinguish similar objects, without specific for describing
Sequence or precedence.In addition, term " includes " and " having " and their any deformation, it is intended that covering is non-exclusive
Include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to clearly arrange
Those of out step or unit, but may include be not clearly listed or it is solid for these process, methods, product or equipment
The other step or units having.In addition, "and/or" used herein indicates at least one of institute's connecting object, such as A
And/or B and/or C, indicating to include independent A, independent B, independent C and A and B exist, and B and C exist, and A and C exist,
And all existing 7 kinds of situations of A, B and C.
Light source drive control method can be applied to terminal device under the screen of the embodiment of the present invention, wherein terminal device packet
It includes: the active matrix organic light-emitting diode AMOLED panel with pixel transistor, pixel-driving circuit and driving chip；With
In the driving power for driving the AMOLED panel；And it is set to the illuminating source below the AMOLED panel.
The structure of the AMOLED panel of the embodiment of the present invention can refer to Fig. 2, the design of AMOLED panel pixel and technique
Manufacturing process mainly has following steps:
1, the slow of silica (SiOx) material is made on glass or flexible polyimide (Polyimide, PI) material
Rush layer, about 300 nanometers of thickness (nm) left and right.The non-of about 50nm thickness is formed using chemical vapour deposition technique on the buffer layer later
Crystal silicon layer forms polysilicon layer by way of laser annealing.The patterning process process for completing photoetching later, etching, removing photoresist,
Key step are as follows: coat photoresist on the polysilicon layer, using photomask (Mask) exposure of polycrystalline silicon pixel layout design, show
Shadow forms the figure of pixel layout design；Then polysilicon graphics are formed using plasma etching technology, goes photoetching later
Glue forms polysilicon graphics；
2, the silicon nitride of chemical vapor deposition about 60nm thickness SiOx film layer and about 60nm thickness on polysilicon graphics
(SiNx) film layer.Then molybdenum (Molybdenum, Mo) metal layer of physical vapour deposition (PVD) about 200nm thickness, utilizes grid
(Gate) Mask of 1 pixel layout design using photoetching, is etched, process of removing photoresist completion Gate1 gate patterns process；
3, about 130nm thickness SiNx is deposited on the basis of above as gate insulating layer 2, physical vapour deposition (PVD) is about later
The Mo metal layer of 250nm thickness completes its patterning process as Gate2, using photoetching, development, etching, degumming process；
4, chemical vapor deposition about 250nm thickness SiN, about 300nm thickness SiOx utilize design as interlayer insulating film
Figure completes the graphical processing procedure of interlayer insulating layer perforating, i.e. channel (Via) 1；
5, physical vapour deposition (PVD) 50nm titanium (Titanium, Ti), 500nm thick aluminium (Aluminum, Al), 100nm thickness
The M2 metal layer of Ti completes the patterning process of source-drain electrode layer using the figure of layout design, i.e. and M2 layers；
6, organic in the planarization of about 1.5 microns of the thickness (μm) of coating process production using the figure Mask of layout design
In film layer, via hole and Via2 are formed using photoetching technique, for being electrically connected；
7, silver-colored (Argentum, the Ag) film layer of physical vapour deposition (PVD) about 50nm thickness electro-conductive glass (ITO) film layer, 15nm thickness,
50nm thickness ito film layer, and its patterning process is completed, make anode；
8, the transparent organic film of about 1.5 μ m thicks is coated with as pixel defining layer, completes its patterning process；
9, it is coated with the organic film of about 1.5 μ m thicks, completes patterned process, support column is made, when screen is pressed
When, it is used to support pressing, packaged glass is avoided to be pressed into pixel film layer；
10, OLED organic layer is steamed in the way of hot evaporation according to the Mask of the metal grill of layout design production
It is plated on the anode of pixel defining layer exposing；
11, in the way of thermal evaporation, metal Mg, Ag alloy is evaporated on organic layer as cathode.
AMOLED image element driving method may refer to Fig. 3.As shown in figure 3, with reference to common AMOLED pixel driver frame
Structure, transmitting (EMIT) circuit including Panel the right and left, grid (Gate) circuit.Gate circuit is in driving chip (Diver
IC) issue STV2, CK1, XCK1 signal driving successively from output the 1st row, the 2nd row, Nth row Gate signal, control pixel
Circuit.EMIT circuit cooperates Gate signal under STV1, CK, XCK driving, opens AMOLED pixel Organic Light Emitting Diode
Transistor is driven, so that electric current flows through Organic Light Emitting Diode and shines.
It is as shown in Figure 4: for the AMOLED pixel driving framework of Fig. 3, to commonly use driving signal and (only drawn in figure as shown in waveform
The drive waveforms of EMIT circuit are gone out, the drive waveforms of Gate are similar with its).Feeding back (Tearing Effect, TE) signal is
Diver IC issues the signal of host CPU, and after host CPU identifies this signal, content to be shown is sent to Diver IC.Together
When TE signal after, to be carried out inside Diver IC reception and show information preparation, thus IC inside prepare a period of time after, hair
The driving signal of EMIT circuit, Gate circuit out starts to show the contents such as picture or screen.
AMOLED pixel circuit schematic diagram may refer to Fig. 5.As shown in figure 5, pixel VDD (Pixel VDD, PVDD), as
Plain VEE (Pixel VEE, PVEE) are as follows: the power supply of the key components such as pixel transistor M7, light emitting diode.Wherein, PVDD is general
4.5 volts (V) left and right, general -3.5V of PVEE or so.
In practical applications, terminal device can be mobile phone, tablet computer (Tablet Personal Computer), knee
Laptop (Laptop Computer), moves at personal digital assistant (personal digital assistant, abbreviation PDA)
Dynamic Internet device (Mobile Internet Device, MID) or wearable device (Wearable Device) etc..
Light source drive control method under the screen of the embodiment of the present invention is illustrated below.
It is one of the flow chart of light source drive control method under screen provided in an embodiment of the present invention referring to Fig. 6, Fig. 6.Such as Fig. 6
Shown, shielding lower light source drive control method may comprise steps of:
Step 601, in the case where the pixel transistor is in the open state, control the illuminating source be in close
State.
Step 602, in the case where the pixel transistor is in close state, control the illuminating source and complete light arteries and veins
The transmitting of punching.
As it can be seen that in embodiments of the present invention, mobile terminal opens light source under screen when shielding pixel transistor and not powering on
Pulse shields lower light source working and opens pixel transistor after the completion.
In embodiments of the present invention, by Fig. 3 and Fig. 5 it is found that pixel transistor is in the open state to include at least following item
Part:
Condition 1: driving chip sends driving signal to pixel-driving circuit；
Condition 2, driving chip are powered to pixel-driving circuit；
Condition 3, driving power are in the open state.
Wherein, pixel-driving circuit may include: EMIT circuit and Gate circuit；Driving power may include PVDD and
PVEE；High pressure gate circuit that EMIT circuit and Gate circuit are provided by driving chip (Voltage Gate circuit High,
VGH), low pressure gate circuit (Voltage Gate circuit Low, VGL) power supply power supply.
Therefore, in embodiments of the present invention, mobile terminal can by control at least one of above-mentioned 3 conditions not at
It is vertical, so that pixel transistor is in close state, and then can control the transmitting that illuminating source completes light pulse, illustrate
It is as follows:
Corresponding to condition 1, embodiment one is provided.
Optionally, described in the case where the pixel transistor is in close state, it controls the illuminating source and completes
The transmitting of light pulse, comprising:
Before controlling the driving chip and sending driving signal, the transmitting that the illuminating source completes light pulse is controlled.
One frame of AMOLED panel starts generally with TE signal for label.It drives IC to issue TE signal and notifies host
(Central Processing Unit, CPU), which sends AMOLED panel, needs content to be shown, in the process, the face AMOLED
Intralamellar part also does homework for display.In this section of time, AMOLED panel does not show content, the drive of Panel generally
Dynamic signal is typically in ground potential, and pixel transistor is in and is not powered on non-working condition in AMOLED panel.
Therefore, in the present embodiment, after CPU recognizes TE signal, illuminating source, indication light can be sent instructions to
Light source sends light pulse.After the transmitting that the illuminating source completes light pulse, control driving chip sends driving signal, driving
Screen is shown, specifically may refer to Fig. 7.
It should be noted that the time of driving IC is generally in tens microseconds to Millisecond, the sending time of light pulse
Generally between tens to several hundred microseconds, therefore, reasonable IC time and light pulse emission time can be set, thus
Guarantee to control the transmitting that the illuminating source completes light pulse before driving IC sends driving signal.
Further, described before controlling pixel-driving circuit described in the driving chip and sending driving signal, control
The illuminating source completes the transmitting of light pulse, comprising:
After controlling the driving chip and sending synchronization signal, before controlling the driving chip transmission driving signal,
Control the transmitting that the illuminating source completes signal.
When specific implementation, synchronization signal can show as TE signal, can also show as other letters in addition to TE signal
Number.It should be noted that if synchronization signal shows as other signals in addition to TE signal, then driving chip can be sent out to CPU
The synchronization signal is given, and then is instructed from CPU in rear sent to illuminating source for recognizing the synchronization signal, with indication light light source
Send light pulse；Driving chip directly can also send the synchronization signal to illuminating source, send light arteries and veins with indication light light source
Punching, so as to shorten the response time that illuminating source sends light pulse.
In embodiment 1, as shown in figure 8, control driving chip controls the illuminating source after sending TE signal
Then the transmitting for completing light pulse controls driving chip again and sends driving signal, shown with opening pixel transistor.
In practical applications, TE signal is usually that frame transmitting is primary, and display screen is generally with 60 hertz (HZ) display pictures
Etc. contents.60 TE signals can be emitted within driving chip one second, 60 driving signals illustrate there are within 1 second 60 transmitting light pulse hairs
The chance sent.CPU, which can be set, receives the transmitting that a TE signal just controls an illuminating source light pulse of completion, can also set and connect
The transmitting that illuminating source completes a light pulse is controlled after receiving several TE signals, to achieve the purpose that flexible combination is applied.Such as
Emit a light pulse after receiving 120 TE, can accomplish the light pulse of transmitting in 2 seconds.
In the present embodiment, when illuminating source transmitting light pulse, since driving chip is not sent out to pixel-driving circuit also
Driving signal is sent, condition 1 is unsatisfactory for, and therefore, pixel transistor is in close state, so as to avoid the electricity of pixel transistor
Characteristic is learned because the irradiation of light pulse shifts, and then the display effect of AMOLED panel can be improved.
For embodiment one, light source pulse under screen is opened when pixel transistor does not power on, and shields lower light source working
Pixel transistor is opened after the completion.Illustratively, using TE signal as synchronization signal, emit infrared pulse after a frame starts, so
After be then turned on pixel transistor and show.In addition can also using other signals as synchronization signal, or design increase by one it is reasonable its
His synchronization signal.In this way, can use the transmitting for the time completion LED pulse that display screen transistor does not work on power, borrow simultaneously
Accurately implemented with synchronization signal, to reach the pixel transistor avoided in light irradiation work.
Corresponding to condition 2, embodiment two is provided.
Optionally, described in the case where the pixel transistor is in close state, it controls the illuminating source and completes
The transmitting of light pulse, comprising:
After controlling the driving chip and stopping powering to the pixel-driving circuit, controls the illuminating source and complete
The transmitting of light pulse；
After the control illuminating source completes the transmitting of the light pulse, the method also includes:
The driving chip is controlled to power to the pixel-driving circuit.
In the present embodiment, when illuminating source transmitting light pulse, since driving chip stops to the pixel driver electricity
Road power supply, condition 2 are unsatisfactory for, and therefore, pixel transistor is in close state, so as to avoid the electricity of pixel transistor special
The display effect of AMOLED panel can be improved because the irradiation of light pulse shifts in property.
Corresponding to condition 3, embodiment three is provided.
Optionally, described in the case where the pixel transistor is in close state, it controls the illuminating source and completes
The transmitting of light pulse, comprising:
After closing the driving power, the transmitting that the illuminating source completes light pulse is controlled；
After the control illuminating source completes the transmitting of the light pulse, the method also includes:
Open the driving power.
As shown in figure 5, closing PVDD and/or PVEE power supply, then the illuminating source completes the transmitting of the light pulse,
Control PVDD and PVEE is in the open state again later.Illumination can be avoided to a certain extent to diode drive current power supply
The influence of crucial transistor M7, M3, M1 for dividing.
In the present embodiment, when illuminating source transmitting light pulse, since the driving power is in close state, condition
3 are unsatisfactory for, and therefore, pixel transistor is in close state, so as to avoid the electrology characteristic of pixel transistor because of light pulse
Irradiation shift, and then the display effect of AMOLED panel can be improved.
For embodiment three, power supply PVDD, PVEE of AMOLED pixel transistor are closed.To meet emission function
Based on (such as infrared emission function), the influence of related transistor is avoided by closing pixel driver power supply.
By foregoing teachings it is found that closing power supply is crossed in embodiment two and embodiment threeway, so that pixel transistor is in
Closed state.
It should be noted that in embodiments of the present invention, mobile terminal can AMOLED panel show a frame image it
Before, among or later, under control flow illuminating source complete light pulse transmitting, can specifically determine according to actual needs, the present invention
Embodiment is not construed as limiting this.
Light source drive control method under the screen of the present embodiment, in the case where the pixel transistor is in the open state,
The illuminating source is controlled to be in close state；In the case where the pixel transistor is in close state, the hair is controlled
Radiant completes the transmitting of light pulse, when by time and the work of screen pixels transistor of shielding lower illuminating source transmitting light pulse
Between be staggered.In this way, pixel transistor does not power on, when shielding lower illuminating source transmitting light pulse so as to avoid pixel transistor
Electrology characteristic shift because of the irradiation of light pulse, and then the display effect of AMOLED panel can be improved.
The embodiment of the present invention includes at least following scheme:
1. for embodiment one synchronization signal can also do not had to, as long as setting the time, such as the preparation that a frame starts
Transmitting pulse in time, but accurate control of the method without synchronization signal may cause time warping, transistor work
Just emit light pulses afterwards.
2. the preceding part-time of a frame, intermediate, the end time of display is all ready for insertion into infrared isopulse.But at present
Time optimal after seeming that a frame starts, before transistor work.
3. midway can also be shown, the driving signal of all driving IC closes PVDD, PVEE that host power supply provides
Then emit infrared isopulse to close pixel transistor Deng the relevant power supply of pixel operation is shielded.
EMIT, array substrate row driving (Gate Driver On Array, the GOA) circuit of 4.Panel is mentioned by driving IC
VGH, VGL power supply power supply of confession.The power supply that such driving IC is provided can also be closed before infrared emission, it is brilliant that pixel is closed in midway
The segment drive signal of body pipe, to close the voltage status of part pixel transistor.
It should be noted that the embodiment for the plurality of optional introduced in the embodiment of the present invention, can be combined with each other each other
It realizes, can also be implemented separately, this embodiment of the present invention is not construed as limiting.
The purpose of the embodiment of the present invention be shield caused by improving existing driving method lower light source irradiate AMOLED panel (
Be properly termed as AMOLED screen) occur display problem.
The embodiment of the present invention at least has following improvement: will shield time that lower light source is opened and screen thin film transistor (TFT) (
It is properly termed as pixel transistor) working time is staggered.When shielding lower light source opening, pixel thin film transistor is not powered on.To light
(such as infrared light) only irradiates on the material of thin film transistor (TFT), since the inorganic material of composition thin film transistor (TFT) is extremely stable, only
Only light irradiation has little influence on the composition material of thin film transistor (TFT), thin film transistor (TFT) is then turned on after irradiation, to its electricity
Characteristic is almost without influence.
It is one of the structure chart of terminal device provided in an embodiment of the present invention referring to Fig. 9, Fig. 9.As shown in figure 9, terminal is set
Standby 900 include:
First control module 901, in the case where the pixel transistor is in the open state, controlling described shine
Light source is in close state；
Second control module 902, in the case where the pixel transistor is in close state, controlling described shine
The transmitting of light source completion light pulse.
Optionally, second control module 902, is specifically used for:
Before controlling the driving chip and sending driving signal, the transmitting that the illuminating source completes light pulse is controlled.
Optionally, second control module 902, is specifically used for:
After controlling the driving chip and sending synchronization signal, before controlling the driving chip transmission driving signal,
Control the transmitting that the illuminating source completes signal.
Optionally, second control module 902, is specifically used for:
After controlling the driving chip and stopping powering to the pixel-driving circuit, controls the illuminating source and complete
The transmitting of light pulse；
Terminal device 900 further include:
Third control module, for after controlling the illuminating source and completing the transmitting of the light pulse, described in control
Driving chip is powered to the pixel-driving circuit.
Optionally, second control module 902, is specifically used for:
After closing the driving power, the transmitting that the illuminating source completes light pulse is controlled；
Terminal device 900 further include:
4th control module, for after controlling the illuminating source and completing the transmitting of the light pulse, described in unlatching
Driving power.
Terminal device 900 can be realized each process in embodiment of the present invention method, and reach identical beneficial to effect
Fruit, to avoid repeating, which is not described herein again.
Referring to FIG. 10, Figure 10 is the two of the structure chart of terminal device provided in an embodiment of the present invention, which can
With a kind of hardware structural diagram of terminal device of each embodiment to realize the present invention.As shown in Figure 10, terminal device
1000 include but is not limited to: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensing
Device 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, processor 1010 and
The components such as power supply 1011.It will be understood by those skilled in the art that the not structure paired terminal of terminal device structure shown in Figure 10
The restriction of equipment, terminal device may include perhaps combining certain components or different than illustrating more or fewer components
Component layout.In embodiments of the present invention, terminal device includes but is not limited to mobile phone, tablet computer, laptop, palm electricity
Brain, car-mounted terminal, wearable device and pedometer etc..
Wherein, processor 1010 are used for:
In the case where the pixel transistor is in the open state, controls the illuminating source and be in close state；
In the case where the pixel transistor is in close state, the hair that the illuminating source completes light pulse is controlled
It penetrates.
As it can be seen that the embodiment of the present invention will shield the work of the time and screen pixels transistor of lower illuminating source transmitting light pulse
Time is staggered, in this way, pixel transistor does not power on, when shielding lower illuminating source transmitting light pulse so as to avoid pixel transistor
The display effect of AMOLED panel can be improved because the irradiation of light pulse shifts in the electrology characteristic of pipe.
Optionally, processor 1010 are also used to:
Before controlling the driving chip and sending driving signal, the transmitting that the illuminating source completes light pulse is controlled.
Optionally, processor 1010 are also used to:
After controlling the driving chip and sending synchronization signal, before the driving chip sends driving signal, control
The illuminating source completes the transmitting of signal.
Optionally, processor 1010 are also used to:
After controlling the driving chip and stopping powering to the pixel-driving circuit, controls the illuminating source and complete
The transmitting of light pulse；
After controlling the illuminating source and completing the transmitting of the light pulse, the driving chip is controlled to the pixel
Drive circuitry.
Optionally, processor 1010 are also used to:
After closing the driving power, the transmitting that the illuminating source completes light pulse is controlled；
After controlling the illuminating source and completing the transmitting of the light pulse, the driving power is opened.
It should be noted that method implementation in the embodiment of the present invention may be implemented in above-mentioned terminal device 1000 in the present embodiment
Each process in example, and reach identical beneficial effect, to avoid repeating, details are not described herein again.
It should be understood that the embodiment of the present invention in, radio frequency unit 1001 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 1010 handle；In addition, by uplink
Data be sent to base station.In general, radio frequency unit 1001 includes but is not limited to antenna, at least one amplifier, transceiver, coupling
Clutch, low-noise amplifier, duplexer etc..In addition, radio frequency unit 1001 can also by wireless communication system and network and its
He communicates equipment.
Terminal device provides wireless broadband internet by network module 1002 for user and accesses, and such as user is helped to receive
It sends e-mails, browse webpage and access streaming video etc..
Audio output unit 1003 can be received by radio frequency unit 1001 or network module 1002 or in memory
The audio data stored in 1009 is converted into audio signal and exports to be sound.Moreover, audio output unit 1003 can be with
Audio output relevant to the specific function that terminal device 1000 executes is provided (for example, call signal receives sound, message connects
Quiet down sound etc.).Audio output unit 1003 includes loudspeaker, buzzer and receiver etc..
Input unit 1004 is for receiving audio or video signal.Input unit 1004 may include graphics processor
(Graphics Processing Unit, GPU) 10041 and microphone 10042, graphics processor 10041 are captured in video
In mode or image capture mode by image capture apparatus (such as camera) obtain static images or video image data into
Row processing.Treated, and picture frame may be displayed on display unit 1006.Through treated the image of graphics processor 10041
Frame can store in memory 1009 (or other storage mediums) or via radio frequency unit 1001 or network module 1002 into
Row is sent.Microphone 10042 can receive sound, and can be audio data by such acoustic processing.Treated sound
Frequency evidence can be converted in the case where telephone calling model and can be sent to mobile communication base station via radio frequency unit 1001
Format output.
Terminal device 1000 further includes at least one sensor 1005, for example, optical sensor, motion sensor and other
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ring
The light and shade of border light adjusts the brightness of display panel 10061, proximity sensor can when terminal device 1000 is moved in one's ear,
Close display panel 10061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions
The size of (generally three axis) acceleration, can detect that size and the direction of gravity, can be used to identify terminal device appearance when static
State (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion)
Deng；Sensor 1005 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, gas
Meter, hygrometer, thermometer, infrared sensor etc. are pressed, details are not described herein.
Display unit 1006 is for showing information input by user or being supplied to the information of user.Display unit 1006 can
Including display panel 10061, liquid crystal display (Liquid Crystal Display, LCD), organic light emission two can be used
The forms such as pole pipe (Organic Light-Emitting Diode, OLED) configure display panel 10061.
User input unit 1007 can be used for receiving the number or character information of input, and generate the use with terminal device
Family setting and the related key signals input of function control.Specifically, user input unit 1007 includes touch panel 10071
And other input equipments 10072.Touch panel 10071, also referred to as touch screen collect the touch of user on it or nearby
Operation (for example user uses any suitable objects or attachment such as finger, stylus on touch panel 10071 or in touch panel
Operation near 10071).Touch panel 10071 may include both touch detecting apparatus and touch controller.Wherein, it touches
The touch orientation of detection device detection user is touched, and detects touch operation bring signal, transmits a signal to touch controller；
Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 1010,
It receives the order that processor 1010 is sent and is executed.Furthermore, it is possible to using resistance-type, condenser type, infrared ray and surface
The multiple types such as sound wave realize touch panel 10071.In addition to touch panel 10071, user input unit 1007 can also include
Other input equipments 10072.Specifically, other input equipments 10072 can include but is not limited to physical keyboard, function key (ratio
Such as volume control button, switch key), trace ball, mouse, operating stick, details are not described herein.
Further, touch panel 10071 can be covered on display panel 10061, when touch panel 10071 detects
After touch operation on it or nearby, processor 1010 is sent to determine the type of touch event, is followed by subsequent processing device 1010
Corresponding visual output is provided on display panel 10061 according to the type of touch event.Although in Figure 10, touch panel
10071 and display panel 10061 are the functions that outputs and inputs of realizing terminal device as two independent components, but
In some embodiments, touch panel 10071 can be integrated with display panel 10061 and realize outputting and inputting for terminal device
Function, specifically herein without limitation.
Interface unit 1008 is the interface that external device (ED) is connect with terminal device 1000.For example, external device (ED) may include
Wired or wireless headphone port, external power supply (or battery charger) port, wired or wireless data port, storage card
Port, port, the port audio input/output (I/O), video i/o port, ear for connecting the device with identification module
Generator terminal mouth etc..Interface unit 1008 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED)
And by one or more elements that the input received is transferred in terminal device 1000 or it can be used in terminal device
Data are transmitted between 1000 and external device (ED).
Memory 1009 can be used for storing software program and various data.Memory 1009 can mainly include storage program
Area and storage data area, wherein storing program area can application program needed for storage program area, at least one function (such as
Sound-playing function, image player function etc.) etc.；Storage data area, which can be stored, uses created data (ratio according to mobile phone
Such as audio data, phone directory) etc..In addition, memory 1009 may include high-speed random access memory, it can also include non-
Volatile memory, for example, at least a disk memory, flush memory device or other volatile solid-state parts.
Processor 1010 is the control centre of terminal device, utilizes each of various interfaces and the entire terminal device of connection
A part by running or execute the software program and/or module that are stored in memory 1009, and calls and is stored in storage
Data in device 1009 execute the various functions and processing data of terminal device, to carry out integral monitoring to terminal device.Place
Managing device 1010 may include one or more processing units；Preferably, processor 1010 can integrate application processor and modulation /demodulation
Processor, wherein the main processing operation system of application processor, user interface and application program etc., modem processor master
Handle wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1010.
Terminal device 1000 can also include the power supply 1011 (such as battery) powered to all parts, it is preferred that power supply
1011 can be logically contiguous by power-supply management system and processor 1010, to realize that management is filled by power-supply management system
The functions such as electricity, electric discharge and power managed.
In addition, terminal device 1000 includes some unshowned functional modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of terminal device, including processor 1010, memory 1009, storage
On memory 1009 and the computer program that can run on the processor 1010, the computer program is by processor 1010
Each process of light source drive control embodiment of the method under above-mentioned screen is realized when execution, and can reach identical technical effect, is
It avoids repeating, which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each mistake of light source drive control embodiment of the method under above-mentioned screen when being executed by processor
Journey, and identical technical effect can be reached, to avoid repeating, which is not described herein again.Wherein, the computer-readable storage medium
Matter, such as read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access
Memory, abbreviation RAM), magnetic or disk etc..
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within protection of the invention.
Claims (12)
1. a kind of light source drive control method under screen is applied to terminal device, which is characterized in that the terminal device includes: tool
There is the active matrix organic light-emitting diode AMOLED panel of pixel transistor, pixel-driving circuit and driving chip；For driving
Move the driving power of the AMOLED panel；And it is set to the illuminating source below the AMOLED panel；
The described method includes:
In the case where the pixel transistor is in the open state, controls the illuminating source and be in close state；
In the case where the pixel transistor is in close state, the transmitting that the illuminating source completes light pulse is controlled.
2. the method according to claim 1, wherein the feelings being in close state in the pixel transistor
Under condition, the transmitting that the illuminating source completes light pulse is controlled, comprising:
Before controlling the driving chip and sending driving signal, the transmitting that the illuminating source completes light pulse is controlled.
3. according to the method described in claim 2, it is characterized in that, the pixel-driving circuit described in the driving chip is sent out
Before sending driving signal, the transmitting that the illuminating source completes light pulse is controlled, comprising:
After controlling the driving chip and sending synchronization signal, before controlling the driving chip transmission driving signal, control
The illuminating source completes the transmitting of signal.
4. the method according to claim 1, wherein the feelings being in close state in the pixel transistor
Under condition, the transmitting that the illuminating source completes light pulse is controlled, comprising:
After controlling the driving chip and stopping powering to the pixel-driving circuit, controls the illuminating source and complete light arteries and veins
The transmitting of punching；
After the control illuminating source completes the transmitting of the light pulse, the method also includes:
The driving chip is controlled to power to the pixel-driving circuit.
5. the method according to claim 1, wherein the feelings being in close state in the pixel transistor
Under condition, the transmitting that the illuminating source completes light pulse is controlled, comprising:
After closing the driving power, the transmitting that the illuminating source completes light pulse is controlled；
After the control illuminating source completes the transmitting of the light pulse, the method also includes:
Open the driving power.
6. a kind of terminal device, which is characterized in that the terminal device include: with pixel transistor, pixel-driving circuit and
The active matrix organic light-emitting diode AMOLED panel of driving chip；For driving the driving power of the AMOLED panel；
And it is set to the illuminating source below the AMOLED panel；
The terminal device includes:
First control module, for controlling at the illuminating source in the case where the pixel transistor is in the open state
In closed state；
Second control module, for it is complete to control the illuminating source in the case where the pixel transistor is in close state
At the transmitting of light pulse.
7. terminal device according to claim 6, which is characterized in that second control module is specifically used for:
Before controlling the driving chip and sending driving signal, the transmitting that the illuminating source completes light pulse is controlled.
8. terminal device according to claim 7, which is characterized in that second control module is specifically used for:
After controlling the driving chip and sending synchronization signal, before controlling the driving chip transmission driving signal, control
The illuminating source completes the transmitting of signal.
9. terminal device according to claim 6, which is characterized in that second control module is specifically used for:
After controlling the driving chip and stopping powering to the pixel-driving circuit, controls the illuminating source and complete light arteries and veins
The transmitting of punching；
The terminal device further include:
Third control module, for controlling the driving after controlling the illuminating source and completing the transmitting of the light pulse
Chip is powered to the pixel-driving circuit.
10. terminal device according to claim 9, which is characterized in that second control module is specifically used for:
After closing the driving power, the transmitting that the illuminating source completes light pulse is controlled；
The terminal device further include:
4th control module, for opening the driving after controlling the illuminating source and completing the transmitting of the light pulse
Power supply.
11. a kind of terminal device, which is characterized in that including processor, memory and be stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 1 to 5 is realized when the computer program is executed by the processor
Any one of described in screen under light source drive control method the step of.
12. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes that light source drives under the screen as described in any one of claims 1 to 5 when the computer program is executed by processor
The step of control method.
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| CN110010069B (en) | 2021-09-24 |
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