CN109188745A - display module and display device - Google Patents
display module and display device Download PDFInfo
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- CN109188745A CN109188745A CN201811284220.6A CN201811284220A CN109188745A CN 109188745 A CN109188745 A CN 109188745A CN 201811284220 A CN201811284220 A CN 201811284220A CN 109188745 A CN109188745 A CN 109188745A
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- pixel unit
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- Crystallography & Structural Chemistry (AREA)
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- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
The invention discloses a kind of display module and display devices, are related to field of display technology, comprising: underlay substrate；The array substrate and color membrane substrates being successively set on underlay substrate；Multiple sub-pixel units；Photovoltaic conversion structure for receiving the light issued via at least partly sub-pixel unit, and converts optical signals to current signal；Driving chip for alternately providing positive voltage signal and negative voltage signal to each sub-pixel unit respectively in two neighboring time frame, and provides initial public voltage signal or calibration public voltage signal to each sub-pixel unit；Current signal processing module calculates the difference of the corresponding electric current of two neighboring time frame according to current signal for receiving current signal；Calibration common voltage value for obtaining calibration common voltage value according to the difference of electric current, and is provided to driving chip by calibration voltage computing module.In this way, having the function of automatic adjustment common voltage value, be conducive to promote display quality.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of display module and display device.
Background technique
During display device produces adjustment, need quickly and accurately to get the voltage value of optimal public electrode
(Vcom), the unnecessary mistake as caused by human factor is avoided, guarantees the Flicker value (flicker value) of device in specification requirement model
In enclosing, so that it is guaranteed that the display quality of display device.
In pixel charging process, the parasitic capacitance on panel generates leaping voltage (feed through voltage),
It is easy to cause positive-negative polarity to charge DC deviation (DC offset), and positive-negative polarity charging direct current can be made up by setting Vcom
It is influenced caused by deviation.
In general, each display device will carry out Vcom correction when leaving the factory, make positive-negative polarity source voltage and Vcom
Pressure difference it is equal, thus by flicker value control in specification limit, it is ensured that each device reaches optimum efficiency.
But in the prior art, after display device factory, the correction of Vcom value can not be carried out again, and in display device
Use process in, Flicker value probably changes and deviates specification requirement range, to influence display device
Display quality.
Summary of the invention
In view of this, introducing photovoltaic conversion structure, electric current letter the present invention provides a kind of display module and display device
Number processing module and calibration voltage computing module make display module and display device have the function of automatic adjustment common voltage value
Can, to be conducive to be promoted the display quality of display module and display device.
In a first aspect, the application provides a kind of display module, it is provided with viewing area and around the non-display of the viewing area
Area, comprising:
Underlay substrate；
The plane where perpendicular to the underlay substrate is successively set on array substrate and color film on the underlay substrate
Substrate；
Multiple sub-pixel units；
Photovoltaic conversion structure deviates from the side of the array substrate positioned at the color membrane substrates, for receiving via at least
The light that part sub-pixel unit issues, and convert optical signals to current signal；
Driving chip, in two neighboring time frame respectively to each sub-pixel unit alternately provide positive voltage signal and
Negative voltage signal, and initial public voltage signal or calibration public voltage signal are provided to each sub-pixel unit；
Current signal processing module is electrically connected with the photovoltaic conversion structure, for receiving the current signal, according to institute
State the difference that current signal calculates the corresponding electric current of two neighboring time frame；
Calibration voltage computing module is electrically connected with the current signal processing module and the driving chip, is used for basis
The difference of the electric current obtains calibration common voltage value, and the calibration common voltage value is provided to the driving chip.
Second aspect, the application provide a kind of display device, including display module, which is the embodiment of the present application
Provided display module.
Compared with prior art, display module and display device provided by the invention at least realize following beneficial effect
Fruit:
In display module and display device provided herein, the photovoltaic conversion structure of introducing can be by part sub-pixel list
The optical signal that member issues is converted to current signal, and the current signal processing module of introducing can calculate adjacent according to current signal
The difference of the corresponding electric current of two time frames, introduce calibration voltage computing module can according to the difference of electric current to common voltage into
Row calibration obtains calibration common voltage value.In this way, by introducing photovoltaic conversion structure, current signal processing module and calibration electricity
Computing module is pressed, so that display module and display device provided by the embodiment of the present application is had common voltage and calibrates function automatically
Can, common voltage value can be automatically adjusted, makes the Flicker value (flicker value) of display device within the scope of specification requirement, is improved
Display device in the prior art after factory can not carry out the defect of common voltage calibration, and then be conducive to promote display mould
The display quality of group and display device.
Certainly, implementing any of the products of the present invention specific needs while must not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 show a kind of sectional view of display module provided by the embodiment of the present application；
Fig. 2 show a kind of top view of display module provided by the embodiment of the present application；
Fig. 3 show a kind of schematic diagram that display module provided by the embodiment of the present application carries out common voltage adjusting；
Fig. 4 show a kind of structural schematic diagram of photovoltaic conversion structure provided by the embodiment of the present application；
Fig. 5 show another top view of display module provided by the embodiment of the present application；
Fig. 6 introduces a kind of top view after photovoltaic conversion structure on the basis of showing display module shown in Fig. 5；
Fig. 7 show a kind of AA ' sectional view of display module in Fig. 6；
Fig. 8 show another top view of display module provided by the embodiment of the present application；
Fig. 9 show a kind of BB ' sectional view of display module in Fig. 8；
Figure 10 show another top view of display module provided by the embodiment of the present application；
Figure 11 show another top view of display module provided by the embodiment of the present application；
Figure 12 show another sectional view of display module provided by the embodiment of the present application；
Figure 13 show another schematic diagram that display module provided by the embodiment of the present application carries out common voltage adjusting；
Figure 14 show another schematic diagram that display module provided by the embodiment of the present application carries out common voltage adjusting；
Figure 15 show another schematic diagram that display module provided by the embodiment of the present application carries out common voltage adjusting；
Figure 16 show a kind of structure chart of display device provided by the embodiment of the present application.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Display device provided by the prior art, in pixel charging process, the parasitic capacitance on panel generates jump electricity
It presses (feed through voltage), positive-negative polarity is be easy to cause to charge DC deviation (DC offset), and pass through setting
Vcom can make up influence caused by positive-negative polarity charging DC deviation.
In general, each display device will carry out Vcom correction when leaving the factory, make positive-negative polarity source voltage and Vcom
Pressure difference it is equal, thus by flicker value control in specification limit, it is ensured that each device reaches optimum efficiency.
But in the prior art, after display device factory, the correction of Vcom value can not be carried out again, and in display device
Use process in, Flicker value probably changes and deviates specification requirement range, to influence display device
Display quality.
In view of this, introducing photovoltaic conversion structure, electric current letter the present invention provides a kind of display module and display device
Number processing module and calibration voltage computing module make display module and display device have the function of automatic adjustment common voltage value
Can, to be conducive to be promoted the display quality of display module and display device.
In general, the pixel voltage of each sub-pixel unit is equal on the voltage and public electrode on pixel electrode on display panel
Voltage (i.e. common voltage) absolute value difference, the voltage on pixel electrode is usually alternating current, i.e., in the embodiment of the present application
To sub- picture in the signified positive voltage and negative voltage for being supplied to sub-pixel unit by driving chip, that is, two neighboring time frame
The voltage that plain unit provides.The design value of usual common voltage is 0, if the difference of the absolute value of generating positive and negative voltage is 0, is illustrated public
The actual value of voltage is that 0V and setting value are equal, and common voltage value at this time is best common voltage value, corresponding Flicker
Value (flicker value) is located in the range of specification requirement, and the display quality of display device is preferable.If the absolute value of positive and negative base of a fruit Na it
Difference is bigger, then the absolute value of common voltage value is also bigger, i.e. deviation design value 0V is remoter, and common voltage value at this time is poor, right
The Flicker value answered deviates the range of specification requirement, and the display quality of display device is poor.
It is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 show a kind of sectional view of display module provided by the embodiment of the present application, and Fig. 2 show the application implementation
A kind of top view of display module provided by example, it is public that Fig. 3 show the progress of display module provided by the embodiment of the present application
A kind of schematic diagram that voltage is adjusted, provides a kind of display module 100, is provided with aobvious with Fig. 3, the embodiment of the present application referring to Figure 1
Show area 11 and the non-display area 12 around viewing area 11, comprising:
Underlay substrate 10；
Along the array substrate 20 and color film base being successively set on perpendicular to 10 place plane of underlay substrate on underlay substrate 10
Plate 30；
Multiple sub-pixel units 40；
Photovoltaic conversion structure 50 deviates from the side of array substrate 20 positioned at color membrane substrates 30, for receiving via at least portion
The light that molecule pixel unit 40 issues, and convert optical signals to current signal；
Driving chip 60, for alternately providing positive voltage letter to each sub-pixel unit 40 respectively in two neighboring time frame
Number and negative voltage signal, and to each sub-pixel unit 40 provide initial public voltage signal or calibration public voltage signal；
Current signal processing module 70 is electrically connected with photovoltaic conversion structure 50, for receiving current signal, is believed according to electric current
Number calculate the difference of the corresponding electric current of two neighboring time frame；
Calibration voltage computing module 80 is electrically connected with current signal processing module 70 and driving chip 60, for according to electricity
The difference of stream obtains calibration common voltage value, and calibration common voltage value is provided to driving chip 60.
Specifically ,-Fig. 3 referring to Figure 1, display module 100 provided by the embodiment of the present application, sets on underlay substrate 10
It is equipped with array substrate 20 and color membrane substrates 30, and including multiple sub-pixel units 40, is realized by lighting sub-pixel unit 40
The normal display of display module 100.In particular, deviating from the provided display module 100 of the embodiment of the present application in color membrane substrates 30
The side of array substrate 20 is provided with photovoltaic conversion structure 50, and driving chip 60 is in two neighboring time frame respectively to sub-pixel
Unit 40 alternately provides positive voltage signal and negative voltage signal and public voltage signal, forms drive array substrate 20 and color film
The voltage that liquid crystal between substrate 30 deflects, so that corresponding sub-pixel unit 40 is lit；Photovoltaic conversion structure
50 can receive the light issued via these sub-pixel units 40, and convert optical signals to current signal.At current signal
Reason module 70 can calculate the difference of the corresponding electric current of two neighboring time frame according to above-mentioned current signal, that is, mention respectively
The difference of corresponding electric current when for positive voltage signal and negative voltage signal, when the difference of the electric current exceeds preset range, explanation
Flicker value (flicker value) has exceeded specification requirement range in display module 100, needs to calibrate common voltage, this Shen
Please calibration voltage computing module 80 provided by embodiment calibration common voltage value obtained according to the difference of the electric current, and by the school
Quasi- common voltage value offer value driving chip 60 sends calibration common voltage value from driving chip 60 to each sub-pixel unit 40,
To reduce the difference of the corresponding electric current of two neighboring time frame, the Flicker value of display module 100 is made to be in specification requirement
In range.The above-mentioned process calibrated to common voltage is carried out after factory, that is to say, that in display module 100
The calibration to common voltage is realized in use process, thus improves the nothing after factory of display device 200 in the prior art
Method carries out the defect of common voltage calibration, and then is conducive to be promoted the display quality of display module 100.
The calibration process of common voltage value is illustrated below.When the complete phase of actual value and design value of common voltage value
Together, when driving chip provides absolute value identical generating positive and negative voltage to sub-pixel unit, the light emission luminance of sub-pixel unit is identical
, photovoltaic conversion structure is also identical by the photoelectric current that photoelectric effect generates.When common voltage value and design value deviation compared with
Small, when driving chip provides absolute value identical generating positive and negative voltage to sub-pixel unit, the light emission luminance difference of sub-pixel unit is got over
Small, i.e., the photoelectric current difference that electric conversion module detects under positive voltage frame and negative voltage frame is also smaller.The embodiment of the present application is exactly
The deviation that common voltage value and design value are judged by photoelectric current that photovoltaic conversion structure senses, to determine whether to public
Voltage value is calibrated.When the photoelectric current detected under positive voltage frame and negative voltage frame differs greatly, from low toward high or from high past
Low adjustment common voltage value, it is public by this time when photoelectric current difference of the photovoltaic conversion structure under generating positive and negative voltage frame is 0
Voltage value is as optimal common voltage value, i.e. the calibration common voltage value of the application meaning.It is optimum value in common voltage value
When, the corresponding Flicker value of display module is minimum, that is, photoelectric current of the corresponding photovoltaic conversion structure under generating positive and negative voltage frame
Difference is 0, and the display quality of display module is best at this time.
It should be noted that Fig. 1 has been only shown schematically aobvious in display module 100 provided by the embodiment of the present application
Show the relative position relation figure in mould group 100 between each structure, does not represent actual film layer structure, such as array substrate 20 is also
More film layers can be refined as, are only to schematically illustrate in Fig. 1.In addition, Fig. 2 also only schematically illustrates display module 100
In each sub-pixel unit 40 a kind of arrangement, do not represent actual quantity and size.
Optionally, Fig. 4 show a kind of structural schematic diagram of photovoltaic conversion structure 50 provided by the embodiment of the present application, asks
Referring to fig. 4, photovoltaic conversion structure 50 provided by the embodiment of the present application includes P (P-type semiconductor) layer 51, the I being stacked
(Intrinsic, intrinsic semiconductor) layer 52 and N (N-type semiconductor) layer 53, P layer 51 are located at I layer 52 close to the one of color membrane substrates 30
Side.
Specifically, it refers to Fig. 4, in display module 100 provided by the embodiment of the present application, is made using PIN junction diode
For photovoltaic conversion structure 50, the light that sub-pixel unit 40 issues enters from 51 side of P layer, reaches I layer 52, generates photoproduction current-carrying
Son.The equivalent resistance of PIN junction declines, and realizes conducting.Due to photoelectric presence, the meeting under the irradiation of light of PIN junction diode
Electric current is generated, so that conversion of the optical signal to electric signal is realized, to provide calculating basis for current signal processing module 70.
Optionally, Fig. 5 show another top view of display module 100 provided by the embodiment of the present application, shown in Fig. 6
To introduce a kind of top view after photovoltaic conversion structure 50 on the basis of display module 100 shown in Fig. 5, Fig. 7 is shown in Fig. 6
A kind of AA ' sectional view of display module 100, refers to Fig. 5, Fig. 6 and Fig. 7, display module 100 provided by the embodiment of the present application
In, photovoltaic conversion structure 50 is located at non-display area 12, and sub-pixel unit 40 includes the first sub-pixel unit positioned at viewing area 11
41 and positioned at non-display area 12 the second sub-pixel unit 42；
Photovoltaic conversion structure 50 is used to receive the light issued via the second sub-pixel unit 42, and photovoltaic conversion structure 50
The second sub-pixel unit 42 is covered in the orthographic projection of 10 place plane of underlay substrate.
Specifically, photovoltaic conversion structure 50 is arranged in non-display area 12 the embodiment of the present application, and in non-display area 12
Provided with the second sub-pixel unit 42, which receives the light issued by the unit of the second sub-pixel, will
Corresponding optical signal is converted to electric signal and is provided to current signal processing module.The photovoltaic conversion structure 50 is in 10 institute of underlay substrate
The second sub-pixel unit 42 is covered in the orthographic projection of plane, the light issued to the second sub-pixel unit 42 is blocked, and is had
Conducive to the light leakage for avoiding the second pixel unit positioned at non-display area 12 from issuing to the whole display effect of display module 100
Fruit impacts.In addition, being arranged photovoltaic conversion structure 50 in non-display area 12, the space of viewing area 11 will not be also occupied,
Be conducive to be promoted the screen accounting of display module 100.
Optionally, in display module 100 provided by the embodiment of the present application, referring to Fig. 5, the first sub-pixel unit 41 includes
First common electrode layer (not shown), the second sub-pixel unit 42 include the second common electrode layer (not shown), the
One common electrode layer and the electrical connection of the second common electrode layer and same layer setting.When by the first common electrode layer and the second public electrode
When layer same layer setting, it may make that corresponding common voltage value is identical in the first common electrode layer and the second common electrode layer, therefore,
The calibration common voltage obtained by the mutual cooperation of photovoltaic conversion structure, current signal processing module and calibration voltage computing module
Calibration voltage value needed for value is regarded as each sub-pixel unit 40 in viewing area 11.In addition, second in the embodiment of the present application
The corresponding same layer of the corresponding each cabling film layer of the corresponding cabling film layer of sub-pixel unit 42 and the first sub-pixel unit 41 is arranged, such as
This, the production of the second sub-pixel unit 42 can be completed while making each first sub-pixel unit 41, eliminate independent system
The process for making the second sub-pixel unit 42 is conducive to save production process, improves formation efficiency, while also helping saving and generating
Cost.
Optionally, continuing with referring to Fig. 5, in display module 100 provided by the embodiment of the present application, the second sub-pixel unit
42 quantity is less than the quantity of the first sub-pixel unit 41, and each second sub-pixel unit 42 is in 10 place plane of underlay substrate
The area of orthographic projection is less than or equal to each first sub-pixel unit 41 in the area of the orthographic projection of 10 place plane of underlay substrate.
Specifically, in display module 100 provided by the embodiment of the present application, the second sub-pixel list is introduced in non-display area 12
Member 42, and by the second sub-pixel unit 42 10 place plane of underlay substrate area design less than the first sub-pixel unit 41
In the area of the orthographic projection of 10 place plane of underlay substrate, be conducive to reduce the second sub-pixel unit 42 and photoelectric conversion knot in this way
Structure 50 is in the occupied space of non-display area 12, to be advantageously implemented the narrow frame design of display module 100.Certainly, this is removed
Outside kind of structure, in some other embodiment of the application, the area of each second sub-pixel unit 42 is also programmable with first
Sub-pixel unit 41 it is identical, the first sub-pixel unit 41 and the second sub-pixel unit 42 are made using unified dimensional standard,
Be conducive to simplify production procedure.In addition to this, in some other embodiments of the application, the face of each second sub-pixel unit 42
Product can also be greater than the area of the first sub-pixel unit 41, and the application is to this without specifically limiting.
Optionally, Fig. 8 show another top view of display module 100 provided by the embodiment of the present application, shown in Fig. 9
For a kind of BB ' sectional view of display module 100 in Fig. 8, in the embodiment, photovoltaic conversion structure 50 is located at viewing area 11, display
Area 11 includes open region 111 and non-open region 112, and photovoltaic conversion structure 50 is located in the orthographic projection of 10 place plane of underlay substrate
Non- open region 112.
Specifically, continuing with referring to Fig. 8 and Fig. 9, black matrix 91 and color blocking 92, color blocking 92 are provided on color membrane substrates 30
Corresponding region is open region 111, and open region 111 is effective luminous zone.The region of the corresponding covering of black matrix 91 is black open region
112, non-open region 112 of the application in viewing area 11 introduces photovoltaic conversion structure 50, and the photovoltaic conversion structure 50 is for connecing
The light that the sub-pixel unit 40 in the open region 111 adjacent with the non-open region 112 is issued is received, electricity is converted optical signals to
Signal is flowed, so that the automatic adjustment for subsequent common voltage value provides basic calculation data.By photoelectric conversion knot in the embodiment
The non-open region 112 in viewing area 11 is arranged in structure 50, is not take up the space of open region 111, therefore will not be to display module 100
Normal display and screen accounting impact, but also be not take up the space of non-display area 12, thus also help realization display
The narrow frame design of mould group 100.
Optionally, Figure 10 show another top view of display module 100 provided by the embodiment of the present application, Tu11Suo
It is shown as another top view of display module 100 provided by the embodiment of the present application, referring to Figure 10 and Figure 11, the embodiment of the present application
In provided display module 100, the quantity of photovoltaic conversion structure 50 has multiple, and multiple photovoltaic conversion structures 50 are in viewing area 11
Uniformly arrangement.
Specifically, in embodiment illustrated in fig. 10,5 photoelectric conversion knots are uniformly distributed in the viewing area of display module 100 11
Structure 50 is located at four corners and center of viewing area 11；In embodiment illustrated in fig. 11, in the aobvious of display module 100
Show that area 11 is uniformly distributed 9 photovoltaic conversion structures 50.Turn it should be noted that Figure 10 and Figure 11 have been only shown schematically photoelectricity
Structure 50 is changed in 11 evenly arranged two kinds of viewing area situation, in addition to both situations, photoelectricity provided by the embodiment of the present application
Other evenly arranged forms also can be used in transformational structure 50, and the application is to this without specifically limiting.When photoelectric conversion knot
Structure 50 can get the corresponding light of different zones on viewing area 11 when viewing area 11 is uniformly distributed by photovoltaic conversion structure 50
Signal, and these optical signals are respectively converted into current signal, the mean value of these current signals may finally be taken as meter
The basis of the difference of the corresponding electric current of two neighboring time frame is calculated, the current differential being calculated in this way considers on viewing area 11
The situation of each region, as a result more accurate, the calibration common voltage value being thus calculated is more accurate, to be more advantageous to
Ensure that the Flicker value (flicker value) of display module within the scope of specification requirement, and then is more advantageous to and promotes display module 100
Display quality
Optionally, referring to Figure 1, display module 100 provided by the embodiment of the present application further includes being arranged in color membrane substrates
30 deviate from the upper polaroid 61 and cover board 63 of 20 side of array substrate, and photovoltaic conversion structure 50 is located at color membrane substrates 30 and cover board 63
Between.In this way, being arranged photovoltaic conversion structure 50 between color membrane substrates 30 and cover board 63, make the introducing of photovoltaic conversion structure 50
The film layer structure of display function layer including array substrate 20 and color membrane substrates 30 will not be impacted, make array substrate
The display functions layer such as 20 and color membrane substrates 30 can still be produced according to existing film layer structure, thus be conducive to save display mould
The production process of group 100, improving production efficiency.
Optionally, Figure 12 show another sectional view of display module 100 provided by the embodiment of the present application, refers to
Figure 12, photovoltaic conversion structure 50 are located at the surface that color membrane substrates 30 deviate from 20 side of array substrate.In this way, in 30 He of color membrane substrates
After the completion of array substrate 20 is at box, photovoltaic conversion structure 50 is set away from the surface of array substrate 20 in color membrane substrates 30, then
Attach upper polaroid 61 and cover board 63 again, the corresponding production process of such structure is simple, is conducive to introduce photovoltaic conversion structure 50
The production efficiency of display module 100 afterwards.
Optionally, continuing with referring to Fig. 1, photovoltaic conversion structure 50 is located at cover board 63 close to the table of 61 side of upper polaroid
Face.In this way, cover board 63 is arranged in close to the surface of 61 side of upper polaroid, in color membrane substrates 30 and battle array in photovoltaic conversion structure 50
Column substrate 20 is completed at box, and in color membrane substrates 30 after the attaching that upper polaroid 61 is completed on the surface of array substrate 20, then
Cover board 63 with photovoltaic conversion structure 50 is bonded with upper polaroid 61, it should be noted that cover board 63 and upper polarisation
OCA glue 62 (Optically Clear Adhesive) i.e. optics glue laminating can be used between piece 61.
Optionally, Figure 13 show display module 100 provided by the embodiment of the present application and carries out the another of common voltage adjusting
A kind of schematic diagram, Figure 14 show the another kind that display module 100 provided by the embodiment of the present application carries out common voltage adjusting
Schematic diagram, referring to Figure 13, current signal processing module 70 becomes one with driving chip 60；Alternatively, referring to Figure 14, electric current letter
Number processing module 70, calibration voltage computing module 80 become one with driving chip 60.In this way, current signal is handled mould
The function of block 70 is integrated on the driving chip 60 in display module 100, or current signal processing module 70 and calibration is electric
The function of pressure processing module is integrated on driving chip 60, is so conducive to simplify the integral module structure in display module 100
At, by driving chip 60 can be completed current signal processing function and calibration voltage processing function.
Optionally, Figure 15 show display module 100 provided by the embodiment of the present application and carries out the another of common voltage adjusting
A kind of schematic diagram, referring to Figure 15, display module 100 provided by the embodiment of the present application further includes central processing unit 90, centre
Reason device 90 is electrically connected with driving chip 60；
Current signal processing module 70 becomes one with driving chip 60, calibration voltage computing module 80 and central processing
Device 90 becomes one.
Specifically, referring to Figure 15, display module 100 provided by the embodiment of the present application further includes central processing unit 90,
Signal needed for the central processing unit 90 is used to send display to driving chip 60, such as data-signal lamp.Embodiment high-ranking officers
Quasi- voltage computing module 80 becomes one with central processing unit 90, and current signal processing module 70 and driving chip 60 are collected
Be integrally formed, in this way, current signal processing function completed by driving chip 60, calibrate common voltage value calculating process by
Central processing unit 90 is completed, in this way, simplified the function of driving chip 60 by central processing unit 90, thus favorably
In the data-handling efficiency for promoting driving chip 60.
Based on the same inventive concept, the application also provides a kind of display device 200, and Figure 16 show the embodiment of the present application institute
A kind of structure chart of the display device 200 of offer, referring to Figure 16, which includes display module 100, the display mould
Group 100 is display module 100 provided by the embodiment of the present application.The embodiment of the display device 200 can be found in above-mentioned display mould
The embodiment of group 100, overlaps will not be repeated.Display device 200 provided herein can be with are as follows: mobile phone, tablet computer,
Any products or components with real function such as television set, display, laptop, Digital Frame, navigator.
Through the foregoing embodiment it is found that display module provided by the invention and display device, at least realizing following has
Beneficial effect:
In display module and display device provided herein, the photovoltaic conversion structure of introducing can be by part sub-pixel list
The optical signal that member issues is converted to current signal, and the current signal processing module of introducing can calculate adjacent according to current signal
The difference of the corresponding electric current of two time frames, introduce calibration voltage computing module can according to the difference of electric current to common voltage into
Row calibration obtains calibration common voltage value.In this way, by introducing photovoltaic conversion structure, current signal processing module and calibration electricity
Computing module is pressed, so that display module and display device provided by the embodiment of the present application is had common voltage and calibrates function automatically
Can, common voltage value can be automatically adjusted, makes the Flicker value (flicker value) of display device within the scope of specification requirement, is improved
Display device in the prior art after factory can not carry out the defect of common voltage calibration, and then be conducive to promote display mould
The display quality of group and display device.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (13)
1. a kind of display module, which is characterized in that be provided with viewing area and the non-display area around the viewing area, comprising:
Underlay substrate；
The plane where perpendicular to the underlay substrate is successively set on array substrate and color membrane substrates on the underlay substrate；
Multiple sub-pixel units；
Photovoltaic conversion structure deviates from the side of the array substrate positioned at the color membrane substrates, for receiving via at least partly
The light that sub-pixel unit issues, and convert optical signals to current signal；
Driving chip, for alternately providing positive voltage signal and negative electricity to each sub-pixel unit respectively in two neighboring time frame
Signal is pressed, and provides initial public voltage signal or calibration public voltage signal to each sub-pixel unit；
Current signal processing module is electrically connected with the photovoltaic conversion structure, for receiving the current signal, according to the electricity
Stream signal calculates the difference of the corresponding electric current of two neighboring time frame；
Calibration voltage computing module is electrically connected with the current signal processing module and the driving chip, for according to
The difference of electric current obtains calibration common voltage value, and the calibration common voltage value is provided to the driving chip.
2. display module according to claim 1, which is characterized in that the photovoltaic conversion structure includes the P being stacked
Layer, I layers and N layers, described P layers is located at the side close to the color membrane substrates described I layers.
3. display module according to claim 2, which is characterized in that the photovoltaic conversion structure is located at described non-display
Area, the sub-pixel unit include the first sub-pixel unit positioned at the viewing area and the second son positioned at the non-display area
Pixel unit；
The photovoltaic conversion structure is used to receive the light issued via second sub-pixel unit, and the photoelectric conversion knot
Structure covers second sub-pixel unit in the orthographic projection of plane where the underlay substrate.
4. display module according to claim 3, which is characterized in that first sub-pixel unit includes the first common electrical
Pole layer, second sub-pixel unit include the second common electrode layer, first common electrode layer and second common electrical
Pole layer electrical connection and same layer setting.
5. display module according to claim 3, which is characterized in that the quantity of second sub-pixel unit is less than described
The quantity of first sub-pixel unit, and each second sub-pixel unit is in the face of the orthographic projection of plane where the underlay substrate
Product is less than or equal to each first sub-pixel unit in the area of the orthographic projection of plane where the underlay substrate.
6. display module according to claim 2, which is characterized in that the photovoltaic conversion structure is located at the viewing area,
The viewing area includes open region and non-open region, orthographic projection of the photovoltaic conversion structure in plane where the underlay substrate
Positioned at the non-open region.
7. display module according to claim 6, which is characterized in that the quantity of the photovoltaic conversion structure have it is multiple, it is more
A photovoltaic conversion structure is uniformly arranged in the viewing area.
8. display module according to claim 1, which is characterized in that further include described in setting deviates from the color membrane substrates
The upper polaroid and cover board of array substrate side, the photovoltaic conversion structure is between the color membrane substrates and the cover board.
9. display module according to claim 8, which is characterized in that the photovoltaic conversion structure is located at the color film
Substrate deviates from the surface of the array substrate side.
10. display module according to claim 8, which is characterized in that the photovoltaic conversion structure is located at the cover board and leans on
The surface of the nearly upper polaroid side.
11. display module according to claim 1, which is characterized in that the current signal processing module and the driving
Integrated chip is integrated；Alternatively, the current signal processing module, the calibration voltage computing module with the driving chip
Become one.
12. display module according to claim 1, which is characterized in that it further include central processing unit, the central processing unit
It is electrically connected with the driving chip；
The current signal processing module becomes one with the driving chip, the calibration voltage computing module and it is described in
Central processor becomes one.
13. a kind of display device, which is characterized in that any display module including claim 1 to 12.
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| CN201811284220.6A CN109188745B (en) | 2018-10-31 | 2018-10-31 | Display module and display device |
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