CN109767713A - Display screen, display panel drive method and display device - Google Patents
Display screen, display panel drive method and display device Download PDFInfo
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- CN109767713A CN109767713A CN201910019640.XA CN201910019640A CN109767713A CN 109767713 A CN109767713 A CN 109767713A CN 201910019640 A CN201910019640 A CN 201910019640A CN 109767713 A CN109767713 A CN 109767713A
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Abstract
This application involves field of display technology, more particularly to a kind of display screen, display panel drive method and display device.The display panel drive method can carry out timing to the number of lighting of the fingerprint identification area.If the number of lighting of the fingerprint identification area reaches preset value, display compensation is carried out by fingerprint identification area described in register pair.The display that the display panel drive method can monitor the fingerprint identification area in real time is lighted, in the fingerprint identification area when lighting number and reaching preset value, the fingerprint identification area is compensated in time, the display panel drive method improves the brightness of unlocked by fingerprint display area on the whole, the phenomenon that improving display ghost, improve the service life of the display screen.
Description
Technical field
This application involves field of display technology, more particularly to a kind of display screen, display panel drive method and display device.
Background technique
Fingerprint identification technology is rapidly growing in recent years, and it is with fastest developing speed to become technology for especially optical finger print identification.But it passes
The fingerprint identification area of the scheme of system is relatively fixed, and the display brightness that the fixed unlock area of screen needs in unlock is higher, rather than refers to
The display brightness of line cog region is lower.If for a long time or be repeatedly unlocked in use, the material property of display screen can be gradually
It is deteriorated, aging phenomenon can become that the luminous efficiency of display screen is seriously caused to lower, and brightness reduces, and then will cause fingerprint recognition
Area shows ghost phenomena, influences the use of display screen.
Summary of the invention
Based on this, it is necessary to for for a long time or being repeatedly unlocked in use, the material property of display screen can gradually become
Difference, aging phenomenon can become that the luminous efficiency of display screen is seriously caused to lower, and brightness reduces, and then will cause fingerprint identification area
The problem of showing ghost phenomena provides a kind of display screen, display panel drive method and display device.
A kind of display panel drive method, the display screen have non-fingerprint identification area and fingerprint identification area, the display screen
Driving method includes:
Driving voltage is obtained, the display screen is lighted；
Record the fingerprint identification area lights number；
Light whether number reaches preset value described in judgement, if the number of lighting reaches the preset value, to described
Fingerprint identification area carries out display compensation.
In one embodiment, it lights whether number reaches preset value described in the step judgement, is lighted time if described
Number reaches the preset value, then before carrying out display compensation to the fingerprint identification area, further includes:
Obtain the attenuation curve of the display screen；
Display offset data is obtained according to the attenuation curve, and by the display offset data classification storage, it is described aobvious
Display screen is in display offset data difference when different brightness.
In one embodiment, the fingerprint identification area described in the step record light number before, further includes:
The coordinate information of the fingerprint identification area is obtained, the coordinate information includes each picture in the fingerprint identification area
The location information of plain display unit；
The number of lighting of each pixel display unit is counted.
In one embodiment, the method also includes:
Obtain the edge coordinate information in the outer edge fixed range apart from the non-fingerprint identification area；
The edge coordinate information includes each picture in the outer edge fixed range apart from the non-fingerprint identification area
The location information of plain display unit；
Number is lighted to the screen body in the outer edge fixed range of the non-fingerprint identification area to count；
If the screen body in the outer edge fixed range of the non-fingerprint identification area, which lights number, reaches the preset value, right
Screen body in the outer edge fixed range of the non-fingerprint identification area carries out display compensation.
A kind of display screen, comprising:
Substrate has loading end；
Pixel-array unit, is set to the loading end of the substrate, and the pixel-array unit includes that non-fingerprint is known
Other area and fingerprint identification area；
Driving chip is set to the loading end of the substrate, and is electrically connected with the pixel-array unit, for
The pixel-array unit sends control signal, and what the driving chip was also used to detect the fingerprint identification area lights number,
And when lighting number and reaching preset value, display compensation is carried out to the fingerprint identification area in the fingerprint identification area；And
Fingerprint recognition device is set to the fingerprint identification area, for realizing fingerprint recognition.
In one embodiment, the driving chip includes: counter, with multiple pixels in the pixel-array unit
Display unit is electrically connected, and lights number for record the multiple pixel display units of the fingerprint identification area；And
Register is electrically connected with the counter, for lighting when the multiple pixel display units of the fingerprint identification area
When number reaches the preset value, Xiang Suoshu fingerprint identification area provides display offset data.
In one embodiment, the counter includes the counter of different digits, according to digit by greatly to
Small or ascending sequence is successively counted using light number of the counter to the fingerprint identification area.
In one embodiment, the register includes the register for storing different size offset voltage, has a kind of meter
The counter of number unit is arranged in a one-to-one correspondence with the register for storing a kind of offset voltage.
In one embodiment, the counter counting when described with a kind of digit reaches its digit
When, the display screen controls the corresponding register and applies offset voltage to the fingerprint identification area.
A kind of display device, comprising: master controller and the display screen as described in any one of the above；
The display screen is electrically connected with the master controller, for receiving and executing the control signal of the master controller.
This application involves field of display technology, more particularly to a kind of display screen, display panel drive method and display device.
The display panel drive method can carry out timing to the number of lighting of the fingerprint identification area.If the point of the fingerprint identification area
Bright number reaches preset value, then carries out display compensation to the fingerprint identification area.The display panel drive method can supervise in real time
Number is lighted in the display for controlling the fingerprint identification area, right in time in the fingerprint identification area when lighting number and reaching preset value
The fingerprint identification area carries out display compensation data, and the display panel drive method improves unlocked by fingerprint viewing area on the whole
The brightness in domain improves the phenomenon that showing ghost, improves the service life of the display screen.
Detailed description of the invention
Fig. 1 is the display panel drive method flow diagram provided in the application one embodiment；
Fig. 2 is the display panel drive method flow diagram provided in the application one embodiment；
Fig. 3 is the display screen display brightness decaying schematic diagram provided in the application one embodiment；
Fig. 4 is the structural schematic diagram of the display screen provided in the application one embodiment；
Fig. 5 is the schematic diagram of internal structure of the display screen provided in the application one embodiment；
Fig. 6 is the structural schematic diagram of the display device provided in the application one embodiment.
Drawing reference numeral explanation:
Display screen 100
Substrate 10
Pixel-array unit 20
Non- fingerprint identification area 21
Fingerprint identification area 22
Driving chip 30
Random access memory 31
Fingerprint recognition device 32
Counter 33
Register 34
Cover board 40
Display device 200
Master controller 50
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 only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As described in background, generally using fixed fingerprint identification area in traditional scheme, and in unlocking screen, Gu
The display brightness that fixed fingerprint identification area needs is higher, rather than the display brightness that fingerprint identification area needs is lower.It is for a long time or more
When secondary progress unlocked by fingerprint, the material property of display screen can gradually be deteriorated, and aging phenomenon can become serious.The luminous effect of display screen
Rate lowers, and brightness reduces, and in turn results in the generation that fingerprint identification area shows ghost phenomena, and then influences normally making for display screen
With.Fingerprint identification area can be effectively avoided to show ghost the study found that carrying out display compensation to fingerprint identification area through inventor
The generation of phenomenon, extend display screen uses the time.
The application provides a kind of display screen, display panel drive method and display device.The display panel drive method can be with
Timing is carried out to the number of lighting of the fingerprint identification area.If the number of lighting of the fingerprint identification area reaches preset value, lead to
It crosses fingerprint identification area described in register pair and carries out display compensation.The display panel drive method, which can monitor the fingerprint in real time, to be known
The display in other area is lighted, in the fingerprint identification area when lighting number and reaching preset value, in time to the fingerprint identification area into
Row compensation, the display panel drive method improve the brightness of unlocked by fingerprint display area on the whole, improve display ghost
The phenomenon that, improve the service life of the display screen.
Referring to Fig. 1, providing a kind of display panel drive method in the application one embodiment, the display screen 100 has
Non- fingerprint identification area 21 and fingerprint identification area 22.The display panel drive method includes:
S100 obtains driving voltage, lights to the display screen 100.
It, can be using not when controlling the non-fingerprint identification area 21 and the fingerprint identification area 22 is lighted in this step
Same display pattern is lighted.When being lighted using different display patterns, the display brightness of the display screen 100 is not
Together, different to the dough softening of the material of the display screen 100, the service life for eventually leading to the display screen 100 is different.One
In a embodiment, the display screen 100 includes counter 33 and register 34.
S200, record the fingerprint identification area 22 lights number.
In this step, number can be lighted by the accumulation that the counter 33 records the fingerprint identification area 22.It is described
Each unlock lighting time of fingerprint identification area 22 is certain, as long as the number of record unlock every time, so that it may learn the finger
The lighting time of line cog region 22, also it can be concluded that the brightness decay degree of the fingerprint identification area 22.
S300 lights whether number reaches preset value described in judgement, right if the number of lighting reaches the preset value
The fingerprint identification area 22 carries out display compensation.For example, the condition for carrying out display compensation is according to default unlock time in advance
Number, when the number of unlock reaches preset value, starts to carry out display compensation.
In this step, the preset value can be according to the different model of the display screen 100 and sets itself.Make
With in the process, can also modify to a kind of preset value of display screen 100.It is stored in the register 34
Data to be compensated.Specifically, the offset data stored in the tale unit and the register 34 of the counter 33 can
To be correspondingly arranged.Such as: the counter 33 is count down to 100 seconds, and the corresponding first display offset of the register 34 is to described
Fingerprint identification area 22 carries out display compensation.The counter 33 is count down to 300 seconds, the corresponding second display compensation of the register 34
Value carries out display compensation to the fingerprint identification area 22.
In the present embodiment, the display panel drive method can be by the counter 33 in the fingerprint recognition each time
Area 22 lights to be started to clock constantly, and accumulate calculate the fingerprint identification area 22 light number.If the number of lighting reaches
The preset value then carries out display compensation to the fingerprint identification area 22 by the register 34.The display screen driving side
What method can monitor the fingerprint identification area 22 in real time lights number, it is described light number and reach preset value when, in time to institute
Fingerprint identification area to be stated to compensate, the display panel drive method improves the brightness of unlocked by fingerprint display area on the whole,
The phenomenon that improving display ghost, improve the service life of the display screen 100.
Referring to Fig. 2, in the application one embodiment, the method also includes:
S210 obtains the edge coordinate information in the outer edge fixed range apart from the non-fingerprint identification area 21.
In this step, the outer edge that can be obtained by the random access memory 31 apart from the non-fingerprint identification area 21 is solid
Determine the edge coordinate information in range.
S220, the edge coordinate information include every in the outer edge fixed range apart from the non-fingerprint identification area 21
The location information of one pixel display unit.
In this step, the edge coordinate information can be sent to the counter 33, to realize the counter 33
The screen body recorded in the outer edge fixed range of the non-fingerprint identification area 21 lights number.
S230 lights number to the screen body in the outer edge fixed range of the non-fingerprint identification area 21.
In this step, each is located at the pixel display unit in the outer edge fixed range of the non-fingerprint identification area 21
The counting unit can be corresponded to, to realize the screen body in the outer edge fixed range for recording the non-fingerprint identification area 21
Light number.
Specifically, it is to surround the outside of the non-fingerprint identification area 21 in approximately the same plane that the fixed range, which can be set,
0.1 centimetre -1 centimetre of edge.The 1-10 pixel units can be set in the fixed range.
S240, if the screen body in the outer edge fixed range of the non-fingerprint identification area 21 lights number and reaches described default
Value, then carry out display compensation to the screen body in the outer edge fixed range of the non-fingerprint identification area 21.
In the present embodiment, the outside of other counter and register pair apart from the non-fingerprint identification area 21 can be used
Screen body in edge fixed range is lighted number and is counted.It adjusts the distance in the outer edge fixed range of the non-fingerprint identification area 21
Screen body light number and counted, and judge whether it reaches ultimate preset value, be conducive in time described in judgement on the whole
Whether display screen 100 has display consistency.
In one embodiment, the display screen 100 further include random access memory 31 (random access memory,
RAM).The random access memory 31 is for storage location coordinate information and other data informations with storage.In the step
S200 record the fingerprint identification area 22 light number before, further includes:
The coordinate information of the fingerprint identification area 22 is obtained, the coordinate information includes each in the fingerprint identification area 22
The location information of a pixel display unit.
Specifically, the coordinate information of the fingerprint identification area 22 can be obtained by the random access memory 31.It is described with
The location information of each pixel display unit is stored in machine memory 31.The location information of each pixel display unit can
To correspond to a counter 33, to realize that multiple accumulations of the counter 33 calculate lighting for the fingerprint identification area 22
Number.
The number of lighting of each pixel display unit is counted.In this step, each described pixel is aobvious
Show the corresponding counting unit of unit, the counting unit, which is realized, carries out the number of lighting of each pixel display unit
It counts.The counting unit can be the counter 33 in the display screen 100.Each described pixel display unit pair
Answer a counting unit, naturally it is also possible to which the corresponding counter 33 of multiple pixel units is set.
In the present embodiment, the institute that can accurately have the display screen 100 by the way that the random access memory 31 is arranged
The location coordinate information for stating non-fingerprint identification area 21 and the fingerprint identification area 22 distinguishes.The random access memory 31 is set
It can be more convenient the range that the counter 33 obtains start recording display brightness.Be conducive to show the fingerprint identification area 22
The accurate detection of brightness.
Referring to Fig. 3, providing the display brightness decaying schematic diagram of the display screen 100.In the application one embodiment,
Light whether number reaches preset value described in judging in the step S300, if the number of lighting reaches the preset value,
Before carrying out display compensation to the fingerprint identification area 22, further includes:
S10 obtains the attenuation curve of the display screen 100；
S20 obtains display offset data according to the attenuation curve, and by the display offset data classification storage, institute
State display offset data difference when display screen 100 is in different brightness.
The attenuation curve of the display screen 100 is the display brightness with the extension of time, under identical driving voltage
Variation.For example when first time brightness display, applies a certain driving voltage in the fingerprint identification area 22, be highlighted 2 seconds, brightness
Being likely to be breached 600 nits, (nit is the unit of brightness, 1nit=1cd/m2).In second of brightness display, apply and first
Secondary same driving voltage, secondary display brightness may only reach 500 nits.This explanation in the fingerprint identification area 22 and
A degree of display decaying has occurred in the region of the areas adjacent.
As shown in figure 3, when the lighting time of the fingerprint identification area 22 of the counter 33 record reaching t1, it is described
Display brightness has been decayed L1, is realized by the driving chip 30 compensate for the first time at this time.When the institute of the counter 33 record
When stating lighting time of fingerprint identification area 22 and reaching t2, the display brightness has been decayed L2, passes through the driving chip 30 at this time
It realizes second and compensates.It is described aobvious when the lighting time of the fingerprint identification area 22 of the counter 33 record reaching t3
Show brightness decay L3, realizes that third time compensates by the driving chip 30 at this time.
In the present embodiment, the display offset data includes driving voltage, driving current or display gamma.Specifically,
Driving voltage or driving current can change the display brightness of the display screen 100.Display gamma is referred to as described aobvious
The signal distortion of display screen 100.The signal distortion is a kind of physical attribute of the display screen 100, the distorted signals
Degree refers to distortion of the output image of the display screen 100 to input signal.For a kind of specific screen body, in fixed mode
There is down the changeless signal distortion.Display gamma can be the specific value of display distortion degree.
In a specific embodiment, the display panel drive method may include: during realization
System end issues initialization directive and driving voltage data to the driving chip 30；
System end drives the driving chip 30 to light the display screen 100.Pass through institute inside the driving chip 30
It states counter 33 to count the instruction that powers on each time, can obtain institute in conjunction with the number of counting and the size of driving voltage
It states the highlighted of fingerprint identification area 22 and lights number.
Display offset data corresponding with corresponding display brightness count value is put into the register 34.Such as it can be with
It is set as decaying to 80% progress first time compensation when display brightness.It is compensated when display brightness decays to second of 60% progress.
When count value in corresponding first kind counter reaches its digit, the display stored in the first register is compensated
Data compensate the fingerprint identification area 22.It can confirm aobvious in conjunction with the display attenuation curve of the display screen 100 in advance
Show offset data.And the display offset data that will confirm that is stored in the register 34.
Fig. 4 and Fig. 5 are please referred to, it includes substrate 10, pixel array that a kind of display screen 100 is provided in the application one embodiment
Unit 20, driving chip 30 and fingerprint recognition device 32.
The substrate 10 can be hard panel glass or flexible screen polyimides.The pixel-array unit 20 is set to institute
State the loading end of substrate 10.
The pixel-array unit 20 includes non-fingerprint identification area 21 and fingerprint identification area 22.The non-fingerprint identification area 21
Multiple sub-pixels 201 are respectively included with the fingerprint identification area 22.In one embodiment, in non-21 He of fingerprint identification area
The sub-pixel 201 of identical quantity is set in the unit area of the fingerprint identification area 22.In another embodiment, exist
201 numbers of sub-pixel that 22 unit area of fingerprint identification area includes are less than non-21 unit area of fingerprint identification area
201 numbers of sub-pixel.The number for the sub-pixel 201 that the fingerprint identification area 22 is arranged in unit area is less than in institute
The number for stating the sub-pixel 201 that non-fingerprint identification area 21 is arranged, so that the fingerprint identification area 21 can have more
Transmission region enables the fingerprint recognition device 32 to realize fingerprint recognition under higher light intensity or more light
Function.
The driving chip 30 is set to the loading end of the substrate 10.The driving chip 30 and the pixel battle array
The multiple sub-pixel in column unit 20 is electrically connected, for sending control signal to the pixel-array unit 20.?
In one embodiment, the driving chip 30 be can be set on flexible FPC circuit board.The flexible circuit board is bent, institute
Surface of the substrate 10 far from the pixel-array unit 20 can be folded by stating driving chip 30.
What the driving chip 30 was also used to detect the fingerprint identification area 22 lights number.And in the fingerprint identification area
22 when lighting number and reaching preset value, the driving chip 30 can also carry out display compensation to the fingerprint identification area 22.
Specific display compensation, which can be, to be applied additional complementary drive voltages to the fingerprint identification area 22 or applies driving current.
The fingerprint recognition device 32 is set to the fingerprint identification area 22.The fingerprint recognition device 32 is for realizing finger
Line identification.The Fingerprint Identification Unit 32 can select push type sensor or sliding sensor.The push type sensor
Can be by finger concora crush on the cover board 40, the Fingerprint Identification Unit 32, which can recognize, obtains finger mark.The slidingtype
Sensor needs to slide finger, dragging finger on identifier or by the swiped through sliding sensor of finger.When finger exists
When sliding on the sliding sensor surface, it can be carried out continuously finger " snapshot ".Then, these snapshot " seams of acquisition
Close " together, it is identified with obtaining fingerprint image.Certain Fingerprint Identification Unit 32 can also be other optional identification dresses
It sets.In addition, the fingerprint recognition device 32 for example can be set under screen, that is, it is located at the substrate 10 far from the pixel array
The side of unit 20；Or the fingerprint recognition device 32 can be set in screen, that is, be located at the loading end of the substrate 10, have
Body with the setting of the interval of pixel-array unit 20, positioned at pixel-array unit 20 close to the side of the substrate 10 or far from institute
The side of substrate 10 is stated, visual design requirement adjusts accordingly, and the present invention does not do specific restriction.
The display screen 100 further includes cover board 40 in one embodiment.The cover board 40 covers the pixel array list
Member 20 and the driving chip 30.The cover board 40 can be glass cover-plate.If the substrate 10 sets up the pixel
Array element 20.So in the cover board of the top of the pixel-array unit 20 and the driving chip 30 setting glassy layer
40.In some special display screens 100, the cover board 40 can be fibreglass reinforced plastic cover, metal cover board, wooden cover board, plastics
Any one in cover board, stone matter cover board.
The driving chip 30 that the display screen 100 provided in the present embodiment includes can detecte the fingerprint recognition
Area 22 lights number.The driving chip 30 can also in the fingerprint identification area 22 when lighting number and reaching preset value,
Display compensation is carried out to the fingerprint identification area 22.The display screen 100 can monitor the aobvious of the fingerprint identification area 22 in real time
Show and light number, in the fingerprint identification area 22 when lighting number and reaching preset value, in time to the fingerprint identification area 22 into
Row display compensation data.The display screen 100 improves the brightness of unlocked by fingerprint display area on the whole, and it is residual to improve display
The phenomenon that shadow, improves the service life of the display screen 100.
The driving chip 30 provided in the application one embodiment includes counter 33 and register 34.
The counter 33 is electrically connected with the pixel-array unit 20.The counter 33 is for recording the finger
Line cog region 22 lights number.The counter 33 can be made of basic counting unit and some control doors.It counts
Unit then by it is a series of have storage informational function all kinds of triggers constitute, such as rest-set flip-flop, T trigger, d type flip flop and
JK flip-flop.
The register 34 is electrically connected with the counter 33.The register 34 is used for when the fingerprint identification area 22
When lighting number and reaching preset value, Xiang Suoshu fingerprint identification area 22 carries out display compensation.The register 34 is that limited storage holds
The high speed depositing element of amount.The register 34 can be used to temporary instruction, data and address.In the present embodiment, the register
34 relate generally to data register, for data such as storage driving voltage or driving currents.
In the present embodiment, the counter 33 and the register 34 are arranged in the driving chip 30 to supervise in real time
Control the display state of the fingerprint identification area 22.What the counter 33 recorded the fingerprint identification area 22 lights number.If institute
It states and lights number and reach the preset value, then display compensation is carried out to the fingerprint identification area by the register 34.It is described
What display screen 100 can monitor the fingerprint identification area 22 in real time by the counter 33 lights number.It is lighted time described
When number reaches preset value, compensation data is carried out to the fingerprint identification area 22 in time, the display screen 100 improves on the whole
The brightness of unlocked by fingerprint display area improves the phenomenon that showing ghost, improves the service life of the display screen 100.
In the application one embodiment, the counter 33 includes the counter of different digits, according to digit
Descending or ascending sequence is successively carried out using light number of the counter 33 to the fingerprint identification area 22
It counts.
In the present embodiment, the counter 33 can be to be multiple, according to descending or ascending suitable of digit
Sequence successively realizes that the number of lighting to the fingerprint identification area 22 counts.For example, the digit of first kind counter is
100, multiple first kind counters can be set.Each first kind counter counts is counted up into can use the register later
34 pairs of screen fingerprint identification areas 22 carry out the compensation data of the first kind.The digit of second class counter is 80, Ke Yishe
Set multiple second class counters.Each second class counter counts is counted up into later can be using the register 34 to the screen
Fingerprint identification area 22 carries out the compensation data of the second class.And so on, the digit of third class counter is 50, the 4th class meter
The digit of number device is 20, and the digit of the 5th class counter is 10, and the digit of the 6th class counter is 5.It is each
The number of class counter can show that attenuation curve is configured with reference to the display screen 100, not make excessive restriction herein.
In another embodiment, the counter of the counter 33 including different digits, according to digit by
It is small successively to be counted to big sequence using the counter 33 to lighting number described in the fingerprint identification area 22.
Such as the variety classes of the above-mentioned listed counter 33, the fingerprint is known being realized by the counter 33
It may be set to be in the identification process in other area 22 and first counted using the 6th class counter, then use the 5th class
Counter is counted, then successively using the 4th class counter, the third class counter, the second class counter and
The first kind counter is counted.The number of every one kind counter can also be shown according to the specific display screen 100
It is determined in attenuation curve.Every one kind counter counts count up to finish after a kind of register 34 can be set realize to described
The display of display screen 100 compensates.
In the present embodiment, it whether is sequentially completed stored counts according to the descending sequence of digit, also according to
The ascending sequence of digit is sequentially completed stored counts, can realize that the display to the display screen 100 is mended in time
It repays, promotes the service life of the fingerprint identification area 22, improve ghost.
In the application one embodiment, when the counting of the counter 33 with a kind of digit reaches its counting
When unit, the display screen 100 controls the corresponding register 34 and applies offset voltage to the fingerprint identification area 22.
In the present embodiment, provided with the time that the offset voltage applies, allow the fingerprint identification area 22 timely
Realization show compensation, improve display ghost the phenomenon that, improve the service life of the display screen 100.
In the application one embodiment, the register 34 includes the register of storage different size offset voltage, is had
A kind of counter 33 of digit is arranged in a one-to-one correspondence with the register 34 for storing a kind of offset voltage.
In the present embodiment, multiple registers 34 are set in the display screen 100, each described register 34 is deposited
Store up a kind of offset voltage.For example the counter 33 is when being sequentially completed stored counts according to the descending sequence of digit,
The offset voltage stored in the register 34 can successively change according to descending sequence.The specific register 34
The size gap of the offset voltage of middle storage can be set gradually according to the display brightness attenuation degree of the display screen 100.
Referring to Fig. 6, providing a kind of display device 200 in the application one embodiment, comprising: master controller 50 and above-mentioned
Described in any item display screens 100.The display screen 100 is electrically connected with the master controller 50, described for receiving and executing
The control signal of master controller 50.The master controller 50 is electrically connected with the fingerprint recognition device 32, for according to the finger
The fingerprint recognition signal that line recognition means 32 obtain realizes the display control to the display screen 100.
In the present embodiment, the display device 200 that provides can for smart phone, tablet computer, vehicle audio or
The display device of the others application display screen 100.Such as the display device 200 can also be intelligent advertisement board or its
He applies the place of the display screen 100.The display screen 100 can be flexible OLED display.
The master controller 50 is used to send control instruction to the driving chip 30.The display screen 100 passes through described
What counter 33 recorded the fingerprint identification area 22 lights number.If the number of lighting reaches the preset value, pass through institute
It states register 34 and display compensation is carried out to the fingerprint identification area 22.The display panel drive method can monitor the finger in real time
Line cog region 22 lights number, it is described light number and reach preset value when, the fingerprint identification area 22 is mended in time
It repays, the display panel drive method improves the brightness of unlocked by fingerprint display area on the whole, improves showing for display ghost
As improving the service life of the display screen 100, and then extend the service life of the display device 200.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of display panel drive method, which is characterized in that the display screen (100) has non-fingerprint identification area (21) and fingerprint
Cog region (22), the display panel drive method include:
Driving voltage is obtained, the display screen (100) is lighted；
Record the fingerprint identification area (22) lights number；
Light whether number reaches preset value described in judgement, if the number of lighting reaches the preset value, to the fingerprint
Cog region (22) carries out display compensation.
2. display panel drive method as described in claim 1, which is characterized in that lighting number described in judging in the step is
It is no to reach preset value, if the number of lighting reaches the preset value, display compensation is carried out to the fingerprint identification area (22)
Before, further includes:
Obtain the attenuation curve of the display screen (100)；
Display offset data is obtained according to the attenuation curve, and by the display offset data classification storage, the display screen
(100) display offset data when being in different brightness is different.
3. display panel drive method as described in claim 1, which is characterized in that the fingerprint identification area described in the step record
(22) light number before, further includes:
The coordinate information of the fingerprint identification area (22) is obtained, the coordinate information includes each in the fingerprint identification area (22)
The location information of a pixel display unit；
The number of lighting of each pixel display unit is counted.
4. display panel drive method as claimed in claim 3, which is characterized in that the method also includes:
Obtain the edge coordinate information in the outer edge fixed range apart from the non-fingerprint identification area (21)；
The edge coordinate information includes each picture in the outer edge fixed range apart from the non-fingerprint identification area (21)
The location information of plain display unit；
Number is lighted to the screen body in the outer edge fixed range of the non-fingerprint identification area (21) to count；
If the screen body in the outer edge fixed range of the non-fingerprint identification area (21), which lights number, reaches the preset value, right
Screen body in the outer edge fixed range of the non-fingerprint identification area (21) carries out display compensation.
5. a kind of display screen (100) characterized by comprising
Substrate (10) has loading end；
Pixel-array unit (20), is set to the loading end of the substrate (10), and the pixel-array unit (20) includes
Non- fingerprint identification area (21) and fingerprint identification area (22)；
Driving chip (30) is set to the loading end of the substrate (10), and is electrically connected with the pixel-array unit (20)
It connects, for sending control signal to the pixel-array unit (20), the driving chip (30) is also used to detect the fingerprint
Cog region (22) lights number, and in the fingerprint identification area (22) when lighting number and reaching preset value, to the fingerprint
Cog region (22) carries out display compensation；And
Fingerprint recognition device (32) is set to the fingerprint identification area (22), for realizing fingerprint recognition.
6. display screen (100) as claimed in claim 5, which is characterized in that the driving chip (30) includes: counter
(33), it is electrically connected with multiple pixel display units in the pixel-array unit (20), knows for recording the fingerprint
The multiple pixel display units of other area (22) light number；And
Register (34) is electrically connected with the counter (33), for when the fingerprint identification area (22) multiple pixel display lists
When lighting number and reaching the preset value of member, Xiang Suoshu fingerprint identification area (22) provide display offset data.
7. display screen (100) as claimed in claim 6, which is characterized in that the counter (33) includes different digits
Counter, successively use the counter (33) to the finger according to the descending or ascending sequence of digit
The number of lighting of line cog region (22) is counted.
8. display screen (100) as claimed in claim 7, which is characterized in that the register (34) includes storage different size
The register of offset voltage has a kind of counter (33) of digit and stores a kind of deposit of offset voltage
Device (34) is arranged in a one-to-one correspondence.
9. display screen (100) as claimed in claim 8, which is characterized in that when the meter with a kind of digit
When number device (33) counting reaches its digit, the display screen (100) controls the corresponding register (34) to the finger
Line cog region (22) applies offset voltage.
10. a kind of display device (200) characterized by comprising master controller (50) and any one of such as claim 5-9
The display screen (100)；
The display screen (100) is electrically connected with the master controller (50), for receiving and executing the master controller (50)
Control signal.
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| CN114120906A (en) * | 2021-11-18 | 2022-03-01 | 广州国显科技有限公司 | Brightness compensation method and compensation device of display panel and electronic equipment |
| US11721273B2 (en) | 2019-09-29 | 2023-08-08 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Information display method, terminal device, and storage medium |
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