CN108133671A - A kind of driving method of display panel, display device and display panel - Google Patents
A kind of driving method of display panel, display device and display panel Download PDFInfo
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- CN108133671A CN108133671A CN201711266299.5A CN201711266299A CN108133671A CN 108133671 A CN108133671 A CN 108133671A CN 201711266299 A CN201711266299 A CN 201711266299A CN 108133671 A CN108133671 A CN 108133671A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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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]
-
- 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]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
Abstract
The present invention relates to display technology fields, disclose the driving method of a kind of display panel, display device and display panel, make display panel that can save power consumption and accurately control grayscale, make display effect more preferable.The display panel includes underlay substrate and the multiple display units being set on the underlay substrate, and each display unit includes organic luminescence display unit and micro- lbd display unit；When the low grayscale display of the display unit, the organic luminescence display unit is opened, and micro- lbd display unit is closed；When the display unit high gray is shown, the organic luminescence display unit turns off or on, micro- lbd display unit is opened, wherein, the intensity value ranges of the low grayscale are greater than being equal to 0 and less than or equal to X, and the intensity value ranges of the high gray are greater than X and less than or equal to Y, wherein, X, Y are positive integer, and Y is the highest grayscale of display screen.
Description
Technical field
The present invention relates to display technology field, more particularly to the drive of a kind of display panel, display device and display panel
Dynamic method.
Background technology
By OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) form display panel due to
With thin, light, wide viewing angle, actively shine, luminescent color is continuously adjusted, at low cost, fast response time, operating temperature range are wide,
Simple production process and can Flexible Displays the advantages that, have been cited as the next-generation display technology of great development prospect.
It is had a drawback in that in the prior art by the display panel that OLED is formed, luminous efficiency is low and power consumption is high, especially
When display panel high gray is shown.Therefore, how to improve the luminous efficiency of display panel and reduce power consumption, be urgently to solve at present
Certainly the technical issues of.
Invention content
The embodiment of the present invention provides the driving method of a kind of display panel, display device and display panel, to solve to show
Show the problem of panel luminous efficiency is low and power consumption is high.
In a first aspect, the embodiment of the present invention provides a kind of display panel, including underlay substrate and it is set to the substrate
Multiple display units on substrate, each display unit include organic luminescence display unit and micro- diode displaying list
Member；
When the low grayscale display of the display unit, the organic luminescence display unit is opened, micro- light emitting diode
Display unit is closed；
When the display unit high gray is shown, the organic luminescence display unit turns off or on, described micro- luminous
Diode display unit is opened, wherein,
The intensity value ranges of the low grayscale are greater than being equal to 0 and less than or equal to X, and the intensity value ranges of the high gray are
More than X and less than or equal to Y, wherein, X and Y are positive integer, and Y is the highest grayscale of display screen.
Second aspect, the embodiment of the present invention also provide a kind of display device, and the display device includes above-mentioned display surface
Plate.
The third aspect, the embodiment of the present invention also provide a kind of driving method suitable for above-mentioned display panel, the display
Panel further includes driving unit, the first pixel-driving circuit and the second pixel-driving circuit, wherein, the driving unit passes through institute
It states the first pixel-driving circuit and is turned on and off the organic luminescence display unit, opened by second pixel-driving circuit
Or close micro- lbd display unit；
When the low grayscale display of the display unit, the organic luminescence display unit is opened, micro- light emitting diode
Display unit is closed；
When the display unit high gray is shown, the organic luminescence display unit turns off or on, described micro- luminous
Diode display unit is opened, wherein,
The intensity value ranges of the low grayscale are greater than being equal to 0 and less than or equal to X, and the intensity value ranges of the high gray are
More than X and less than or equal to Y, wherein, X and Y are positive integer, and Y is the highest grayscale of display screen.
Having the beneficial effect that the aspect and any possible implementation manners as described above：
By setting organic luminescence display unit and micro- lbd display unit in each display unit, and when aobvious
When showing that the low grayscale of unit is shown, organic luminescence display unit is opened, and micro- lbd display unit is closed；When display unit height
When grayscale is shown, organic luminescence display unit turns off or on, and micro- lbd display unit is opened, and is met low grayscale and is shown
Show, the high requirement of display unit gray scale control required precision, and reduce the irregularity in brightness caused by voltage inhomogeneities,
It also meets high gray simultaneously and shows, display unit is efficient and the significantly reduced requirement of power consumption.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of display panel vertical view provided in an embodiment of the present invention；
Fig. 2 is a kind of driving current-brightness broken line schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 3 is the driving current of another display panel-brightness broken line schematic diagram that inventive embodiments provide；
Fig. 4 a are the voltage-current curve schematic diagram of micro- lbd display unit provided in an embodiment of the present invention；
Fig. 4 b are electric current-luminous power curve synoptic diagram of micro- lbd display unit provided in an embodiment of the present invention；
Fig. 4 c are the voltage-current density curve synoptic diagram of organic luminescence display unit provided in an embodiment of the present invention；
Fig. 4 d are the curve synoptic diagram of current density-brightness of organic luminescence display unit provided in an embodiment of the present invention；
Fig. 5 is the first pixel-driving circuit schematic diagram provided in an embodiment of the present invention；
Fig. 6 is the second pixel-driving circuit schematic diagram provided in an embodiment of the present invention；
Fig. 7 is display panel shown in Fig. 1 along AA ' directional profile schematic diagrames；
Fig. 8 is the enlarged diagram of Fig. 7 parts A；
Fig. 9 is voltage -- the current curve diagram of P-type TFT and N-type TFT；
Figure 10 is the production method of display panel provided in an embodiment of the present invention；
Figure 11 is another display panel vertical view provided in an embodiment of the present invention；
Figure 12 is a kind of display device schematic diagram provided in an embodiment of the present invention；
Figure 13 is a kind of driving method suitable for above-mentioned display panel.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only merely for the purpose of description specific embodiment, and is not intended to be limiting
The present invention.In the embodiment of the present invention and " one kind " of singulative used in the attached claims, " described " and "the"
It is also intended to including most forms, unless context clearly shows that other meanings.
It should be noted that the nouns of locality such as described " on ", " under " of the embodiment of the present invention, "left", "right" are with attached drawing
Shown angle should not be construed as the restriction to the embodiment of the present invention come what is be described.In addition within a context, it is also necessary to manage
Solution when mentioning an element and being formed on "above" or "below" another element, can not only be formed directly into another
A element " on " either " under " can also be indirectly formed by intermediary element another element " on " or " under ".
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figure 1, for a kind of display panel vertical view provided in an embodiment of the present invention, including underlay substrate 1, Yi Jishe
The multiple display units 2 being placed on underlay substrate 1, each display unit 2 include organic luminescence display unit 3 and micro- light-emitting diodes
Pipe display unit 4.Micro- lbd display unit 4 by micro- light emitting diode (Micro-Light Emitting Diode,
Micro-Led it) forming, micro- lbd display unit 4 has many advantages, such as that luminous efficiency is high, low energy consumption and resolution is high,
Size is only at 1-100 μm or so.As shown in Fig. 2, driving current-brightness for a kind of display panel provided in an embodiment of the present invention
Broken line schematic diagram, with reference to Fig. 1, when 2 low grayscale of display unit is shown, organic luminescence display unit 3 is opened, micro- light emitting diode
Display unit 4 is closed；When 2 high gray of display unit is shown, organic luminescence display unit 3 is closed, micro- diode displaying
Unit 4 is opened.As shown in figure 3, the driving current of another display panel-brightness broken line signal provided for inventive embodiments
Figure, with reference to Fig. 1, when 2 low grayscale of display unit is shown, organic luminescence display unit 3 is opened, micro- lbd display unit
4 close；When 2 high gray of display unit is shown, organic luminescence display unit 3 is opened, and micro- lbd display unit 4 is opened
It opens, in this stage, organic luminescence display unit 3 keeps low gray-scale intensity constant, organic luminescence display unit 3 and micro- light-emitting diodes
4 brightness of pipe display unit is superimposed.The embodiment of the present invention can to avoid when being shown from low grayscale to high gray since luminescent device changes
Pixel intensity and coloration are discontinuous caused by change, so as to make display effect more preferable.Simultaneously because organic luminescence display unit 3 is bright
Degree is held at low grayscale hereinafter, so can equally play the role of saving power consumption always.Wherein, the intensity value ranges of low grayscale
It being greater than being equal to 0 and less than or equal to X, the intensity value ranges of high gray are greater than X and less than or equal to Y, wherein, X and Y are just whole
Number, Y are the highest grayscale of display screen.For example, it can be 256 that X, which can be 128, Y,.
As shown in Fig. 4 a-4b, Fig. 4 a are the voltage-to-current of micro- lbd display unit provided in an embodiment of the present invention
Curve synoptic diagram；Fig. 4 b are electric current-luminous power curve signal of micro- lbd display unit provided in an embodiment of the present invention
Figure；Fig. 4 c are the voltage-current density curve synoptic diagram of organic luminescence display unit provided in an embodiment of the present invention；Fig. 4 d are this
The curve synoptic diagram of the current density-brightness for the organic luminescence display unit that inventive embodiments provide.Wherein, luminous power is that light exists
Work done in unit interval.Current density vectors are to describe certain point electric current power and the physical quantity of flow direction in circuit.It is bright
Degree refers to the physical quantity of (reflective) power of illuminator (refractive body) surface light emitting.By analysis chart 4a-4b it is found that and organic light emission
Display unit is compared, the luminous efficiency of micro- lbd display unit and brightness all highers, therefore the variation of electric current can cause
The brightness change of micro- lbd display unit is big, and the gray value of grayscale is caused to control difficulty.With micro- diode displaying
Unit is compared, and voltage-to-current-brightness curve of organic luminescence display unit is gentler than micro- lbd display unit, more holds
Easily realize that the gray value of grayscale accurately controls, display effect is more preferable, and brightness uniformity is also more preferable, but luminous efficiency is low simultaneously and work(
Consumption is high.Display panel provided in an embodiment of the present invention in each display unit by setting organic luminescence display unit and micro- hair
Optical diode display unit, and when the low grayscale display of display unit, organic luminescence display unit is opened, and micro- light emitting diode is shown
Show that unit is closed；When display unit high gray is shown, organic luminescence display unit turns off or on, micro- diode displaying
Unit is opened, and is met low grayscale and is shown, the high requirement of display unit gray scale control required precision, and is reduced because of voltage unevenness
Irregularity in brightness caused by even property, while also meet high gray and show, display unit is efficient and power consumption is significantly reduced
It is required that.
In display panel provided in an embodiment of the present invention, the intensity value ranges of low grayscale be greater than being equal to 0 and less than etc.
In X, the intensity value ranges of the high gray are greater than X and less than or equal to Y, wherein, X and Y are positive integer, Y for display screen most
High gray.It can be 256 that optional X, which can be 128, Y,.
Display panel provided in an embodiment of the present invention further includes the first pixel-driving circuit and the second pixel-driving circuit,
In, each organic luminescence display unit is coupled with corresponding first pixel-driving circuit, is controlled by the first pixel-driving circuit
It is opened and closed；Each micro- lbd display unit is coupled with corresponding second pixel-driving circuit, by the second picture
Plain driving circuit controls its opening and closing.First pixel-driving circuit includes first film transistor, the second pixel driver electricity
Road includes the second thin film transistor (TFT), and first film transistor and the second thin film transistor (TFT) include source electrode, drain and gate.
Optionally, as shown in figure 5, for the first pixel-driving circuit schematic diagram provided in an embodiment of the present invention, one organic
Luminescence display unit 3 is coupled with corresponding first pixel-driving circuit 51, and the first pixel-driving circuit 51 includes the first film
Transistor T1, switching thin-film transistor T and storage capacitance Cs.With continued reference to Fig. 5, display panel provided in an embodiment of the present invention is also
Including the first data line 71, the first scan line 81 and driving unit (not shown).Wherein first film transistor T1 is drives
Dynamic thin film transistor (TFT), organic luminescence display unit 3 to be driven to shine, when driving unit is driven by the first scan line 81 by first
When dynamic signal inputs the first pixel-driving circuit 51, switching thin-film transistor T conductings, driving unit will by the first data line 71
First data signal transmission to first film transistor T2 grid layer G1, and simultaneously to storage capacitance Cs charge.Then first
Thin film transistor (TFT) T1 is connected, and driving current flows through organic luminescence display unit 3 to ground terminal, organic light emission from power end (Vdd)
Display unit 3 shines under the action of driving current.After switching thin-film transistor T cut-offs, due to the holding of storage capacitance Cs
Effect, the grid layer G1 voltages of first film transistor T1 remain unchanged in a frame shows the period so that the first film is brilliant
Body pipe T1 constant conductions within the entirely display period, driving current can be from power end (Vdd) within the entirely display period
Organic luminescence display unit 3 is flowed through to ground terminal, and then ensures the equal energy within the entirely display period of organic luminescence display unit 3
Normal luminous.Above-mentioned switching thin-film transistor T, first film transistor T1 and storage capacitance Cs may be provided at underlay substrate
On.
Optionally, as shown in fig. 6, for the second pixel-driving circuit schematic diagram provided in an embodiment of the present invention, a micro- hair
Optical diode display unit 4 is coupled with corresponding second pixel-driving circuit 52, and the second pixel-driving circuit 52 includes second
Thin film transistor (TFT) T2, switching thin-film transistor T and storage capacitance Cs.With continued reference to Fig. 6, display surface provided in an embodiment of the present invention
Plate further includes the second data line 72, the second scan line 82 and driving unit (not shown).Wherein the second thin film transistor (TFT) T2
To drive thin film transistor (TFT), micro- lbd display unit 4 to be driven to shine, when driving unit passes through the second scan line 82
When second drive signal is inputted the second pixel-driving circuit 52, switching thin-film transistor T conductings, driving unit passes through the second number
According to line 72 by the second data signal transmission to the grid layer G2 of the second thin film transistor (TFT) T2, and charge simultaneously to storage capacitance Cs.
Then the second thin film transistor (TFT) T2 is connected, and driving current flows through micro- lbd display unit 4 to public from power end (Vdd)
Signal wire 62, low-light diode display unit 4 shine under the action of driving current.After switching thin-film transistor T cut-offs, by
It is acted in the holding of storage capacitance Cs, the grid layer G2 voltages of the second thin film transistor (TFT) T2 are kept not in a frame shows the period
Become so that the second thin film transistor (TFT) T2 constant conductions within the entirely display period, the driving current within the entirely display period
Micro- lbd display unit 4 can be flowed through from power end (Vdd) to common signal line 62, and then ensures micro- light emitting diode
Display unit 4 can normal luminous within the entirely display period.Above-mentioned switching thin-film transistor T, the second thin film transistor (TFT) T2
It may be provided on underlay substrate with storage capacitance Cs, wherein common signal line 62 can be ground wire.
Optionally, the first pixel-driving circuit and the second pixel-driving circuit can also share scan line, i.e. driving unit
By same scan line to the first pixel-driving circuit and the second pixel-driving circuit input drive signal, pass through the first data line
The first data-signal is inputted to the first pixel-driving circuit, is counted by the second data line to the second pixel-driving circuit input second
It is believed that number.
It should be noted that above-mentioned first pixel-driving circuit and the second pixel-driving circuit are merely illustrative, this hair
Other pixel-driving circuits can also be used on the underlay substrate that bright embodiment provides, the embodiment of the present invention is limited not to this
It is fixed.
Optionally, as shown in fig. 7, for display panel shown in Fig. 1 along AA ' directional profile schematic diagrames, display panel further includes
Flatness layer 5, organic luminescence display unit 3 include the anode 31 set gradually far from 1 one side surface of underlay substrate along flatness layer 5,
Light emitting functional layer 32 and cathode 33.Reflecting layer (not shown) can be also set between flatness layer 5 and anode 31, using the structure
Design, reflecting layer can reflect the light that display panel is injected from luminescent layer 32, so as to make display brightness more uniform.In this reality
It applies in example, the concrete type in reflecting layer is unlimited, such as can be argentum reflecting layer.Display panel, which further includes, is arranged on anode 31 and the moon
Pixel defining layer 6 between pole 33, pixel defining layer 6 are for preventing 3 colour mixture of organic luminescence display unit, 31 side of protection anode
Edge, prevent 31 edge out-of-flatness of anode from causing organic luminescence display unit 3 abnormal etc..With continued reference to Fig. 7, micro- light emitting diode is shown
Show that unit 4 is included along the bottom electrode 41 set gradually far from 1 direction of underlay substrate, micro-led 42 and top electrodes
43, the anode 31 of organic luminescence display unit 3 can with the top electrodes 43 of micro- lbd display unit 4 in the present embodiment
It is made with same layer, so as to reduce the making step of display panel and cost of manufacture.In the present embodiment, bottom electrode 41 wraps
Transparent oxide electrode is included, such as can be tin indium oxide ITO, indium zinc oxide IZO.
With continued reference to Fig. 7, organic luminescence display unit 3 includes anode 31, light emitting functional layer 32 and cathode 33 and hole
Transport layer (not shown) and electron transfer layer (not shown).Hole transmission layer and electron transfer layer are located at 31 He of anode
Between cathode 33, and light emitting functional layer 32 is set between hole transmission layer and electron transfer layer.Organic luminescence display unit 3
Principle of luminosity is, when applying voltage to anode 31 and cathode 33, the electronics quilt from the hole of anode 31 and from cathode 33
Light emitting functional layer 32 is transferred to form exciton.Exciton transits to ground state from excitation state, and so as to generate light, light emitting functional layer 33 is sent out
Light.
As shown in figure 8, the enlarged diagram for Fig. 7 parts A, micro- lbd display unit 4 includes bottom electrode 41,
Micro-led 42 and top electrodes 43, micro-led 42 include first electrode 421, the first semiconductor layer 422,
Luminescent layer 423, the second semiconductor layer 424 and second electrode 425.With reference to reference to figure 6, first electrode 421 passes through bottom electrode 41
It is electrically connected with the second thin film transistor (TFT) T2 of the second pixel-driving circuit 52.It is micro- light-emitting diodes in the second pixel-driving circuit 52
After pipe display unit 4 provides operating voltage, the second electrode 424 of micro- lbd display unit 4 generates electronics, first electrode
421 generate holes, and under the electric field action between second electrode 424 and first electrode 421, hole and electronics shine to intermediate
Layer 423 moves, and after hole and electronics meet in luminescent layer 423, releases energy, so that luminescent layer 423 emits beam.
Optionally, with reference to Fig. 5 and Fig. 7, the first pixel-driving circuit 51 provided in an embodiment of the present invention includes first thin
Film transistor T1 is low-temperature polysilicon film transistor (low temperature Poly-Si Thin Film
Transistor, LTPS TFT), the anode 31 and the drain D 1 of first film transistor T1 that organic luminescence display unit 3 includes
Electrical connection.Because the luminous efficiency of organic luminescence display unit is low, the electric current of bigger is needed to drive, therefore drive film brilliant
Body pipe needs to export the electric current of bigger, so mobility requirement is high, and the mobility of low-temperature polysilicon film transistor is just very high,
Suitable for demand of the organic luminescence display unit to more large driven current density.Wherein, low-temperature polysilicon film transistor preferably uses p-type
Low-temperature polysilicon film transistor, it is possible to prevente effectively from display brightness is uneven and the problem of ghost.
Optionally, with reference to Fig. 6 and Fig. 7, the second film crystalline substance of the second pixel-driving circuit 52 provided in an embodiment of the present invention
Body pipe T2 be oxide thin film transistor, the 41 and second thin film transistor (TFT) T2 of bottom electrode of micro- lbd display unit 4
Drain D 2 connect.As shown in figure 9, for low-temperature polysilicon film transistor and the voltage of oxide thin film transistor -- electric current is bent
Line chart, the current-voltage curve figure B1 of low-temperature polysilicon film transistor is than the voltage of oxide thin film transistor -- electric current
Curve graph B2 is steep, and therefore, same curent change (I1 → I2), the voltage knots modification Δ V2 of oxide thin film transistor is more than
The voltage knots modification Δ V1 of low-temperature polysilicon film transistor.Therefore show that oxide thin film transistor is as micro- in low grayscale
During the driving thin film transistor (TFT) of lbd display unit, the required precision that driving unit exports can be reduced, it can be more smart
Really control grayscale.Wherein, oxide thin film transistor is preferably N-shaped oxide thin film transistor
As shown in Figure 10, it is the production method of display panel provided in an embodiment of the present invention, with reference to Fig. 7, including：
Step 101, the bottom electrode 41 that micro-led display unit 4 is sequentially formed on underlay substrate 1 and micro-
Type light emitting diode 42, in Figure 10 shown in (a)；
Step 102 forms flatness layer 5 in micro-led 42 sides far from underlay substrate 1, in Figure 10 (b)
It is shown；
Step 103 forms top electrodes 43 in side of the flatness layer 5 far from underlay substrate 1, in Figure 10 shown in (c).
In a step 101, as shown in (a) in Figure 10, bottom electrode 41 is formed first on underlay substrate 1, then the bottom of at
Side of the portion's electrode 41 far from underlay substrate 1 forms micro-led 42, wherein it is possible to be made by transfer printing process miniature
Light emitting diode 42；In a step 102, as shown in (b) in Figure 10, micro-led 42 far from underlay substrate 1 one
Side forms flatness layer 5, then opens up via 7 from side of the flatness layer 5 far from underlay substrate 1；In step 103, as in Figure 10 (c)
It is shown, top electrodes 43 are formed in side of the flatness layer 5 far from underlay substrate 1, top electrodes 43 are shone by via 7 with miniature
Diode 42 connects, and anode 31, in the present embodiment, organic light emitting display are set in side of the flatness layer 5 far from underlay substrate 1
The anode 31 of unit 3 and the top electrodes 43 of micro- lbd display unit 4 can be made with same layer, so as to reduce display
The making step and cost of manufacture of panel.In Figure 10 shown in (d), formed in side of the anode 31 far from underlay substrate 1 luminous
Functional layer 32 and pixel defining layer 6.In Figure 10 shown in (e), the moon is formed in side of the light emitting functional layer 32 far from underlay substrate 1
Pole 33.
In embodiment provided by the invention, in each display unit, comprising an organic luminescence display unit, and organic hair
One micro- lbd display unit is at least set around light display unit.
As shown in figure 11, it is another display panel vertical view provided in an embodiment of the present invention, in each display unit 2,
Comprising there is provided 2 micro- lbd display units around an organic luminescence display unit 3 and organic luminescence display unit 3
4.When 3 surrounding of organic luminescence display unit sets multiple micro- lbd display units 4, aforesaid plurality of micro- light emitting diode
Display unit 4 can be evenly distributed on around organic luminescence display unit, using the structure design, can make the display of display panel
Brightness is more uniform.Display panel provided in an embodiment of the present invention, can with as shown in Figure 1, in each display unit 2, comprising
One organic luminescence display unit 3 and 3 surrounding of organic luminescence display unit, 1 micro- lbd display unit 4 of setting.
As shown in figure 12, it is a kind of display device schematic diagram provided in an embodiment of the present invention, which includes above-mentioned
Display panel 100, the operation principle about display panel 100 is described in detail above-mentioned, and in this not go into detail.
It should be noted that display device involved in the embodiment of the present invention can include but is not limited to personal computer
(Personal Computer, PC), personal digital assistant (Personal Digital Assistant, PDA), wireless handheld
Equipment, tablet computer (Tablet Computer), mobile phone, MP3 player, MP4 players etc..
As shown in figure 13, a kind of driving method suitable for above-mentioned display panel, display panel further include driving unit, the
One pixel-driving circuit and the second pixel-driving circuit, wherein, driving unit is turned on and off by the first pixel-driving circuit
Organic luminescence display unit is turned on and off micro- lbd display unit by the second pixel-driving circuit.The first drives
Dynamic method is：When the low grayscale of display unit is shown, organic luminescence display unit is opened, and micro- lbd display unit is closed,
When display unit high gray is shown, organic luminescence display unit is closed, and micro- lbd display unit is opened.Second of drive
Dynamic method is：When the low grayscale display of display unit, organic luminescence display unit is opened, and micro- lbd display unit closes
It closes, when display unit high gray is shown, organic luminescence display unit is opened, and micro- lbd display unit is opened.Wherein,
The first and second of driving method, so that display panel is when low grayscale show, micro- lbd display unit unlatching,
Display unit gray scale control required precision high requirement when meeting low grayscale display, and reduce because voltage inhomogeneities causes
Irregularity in brightness, while display unit is efficient and power consumption significantly reduced requirement when also meeting high gray display.And
And in second of driving method, when high gray is shown, organic luminescence display unit 3 keeps low gray-scale intensity constant, organic
Luminescence display unit 3 and 4 brightness of micro- lbd display unit superposition, can to avoid when being shown from low grayscale to high gray by
Pixel intensity and coloration are discontinuous caused by luminescent device change, so as to make display effect more preferable.Simultaneously because organic hair
3 brightness of light display unit is held at low gray-scale intensity always, so can equally play the role of saving power consumption.
Wherein, the intensity value ranges of the low grayscale are greater than being equal to 0 and less than or equal to X, the gray value of the high gray
Range is greater than X and less than or equal to Y, wherein, X, Y are positive integer, and Y is the highest grayscale of display screen.Driving above-mentioned display surface
During plate, it can use and the first driving method is used alone, second of driving method can also be used alone, can be made with timesharing
With the first and second of driving method.
Optionally, in an embodiment provided by the invention, the intensity value ranges of low grayscale be greater than being equal to 0 and less than etc.
In 128, the intensity value ranges of high gray are greater than in 128 and less than or equal to 256.
Optionally, with reference to reference to figure 5, Fig. 6 and Figure 13, display panel further includes the first data line 71, the second data line 72,
First scan line 81 and second gate line 82.Wherein, for each display unit 2, when driving unit passes through the first scan line
81 input the first drive signal to the first pixel-driving circuit 51, and organic luminescence display unit 3 opens, and the first data line 71 is to the
One pixel-driving circuit 51 inputs the first data-signal；By the second scan line 82 second is inputted to the second pixel-driving circuit 52
Drive signal, when micro- lbd display unit 4 is closed, 2 low grayscale of display unit is shown.For each display unit 2,
When driving unit inputs the first drive signal, organic light emitting display list by the first scan line 81 to the first pixel-driving circuit 51
Member 3 is opened, and the first data line 71 inputs the first data-signal or organic luminescence display unit to the first pixel-driving circuit 51
3 close；Second drive signal, micro- diode displaying list are inputted to the second pixel-driving circuit 52 by the second scan line 82
Member 4 is opened, and when the second data line 72 is to the second pixel-driving circuit 52 the second data-signal of input, 2 high gray of display unit is shown
Show.
Optionally, the first pixel-driving circuit and the second pixel-driving circuit can also share same scan line, for every
One display unit, when driving unit by scan line to the first pixel-driving circuit and second pixel-driving circuit
Input drive signal, organic luminescence display unit are opened, and micro- lbd display unit is closed, and the first data line is to the first picture
When plain driving circuit inputs the first data-signal, the low grayscale of display unit is shown；
For display unit each described, when driving unit by scan line to the first pixel-driving circuit and the second picture
Plain driving circuit input drive signal, organic luminescence display unit are closed, and micro- lbd display unit is opened, and passes through second
When data line is to the second pixel-driving circuit the second data-signal of input, display unit high gray is shown.
Optionally, in other embodiments of the present invention, with reference to reference to figure 5, Fig. 6, the first pixel-driving circuit 51 includes the
One thin film transistor (TFT) T1, first film transistor T1 can be low-temperature polysilicon film transistor, it is preferred that first film transistor
T1 can be p-type low-temperature polysilicon film transistor.Second pixel-driving circuit 52 includes the second thin film transistor (TFT) T2, the second film
Transistor T2 can be oxide thin film transistor, it is preferred that the second thin film transistor (TFT) T1 can be N-shaped oxide thin film transistor.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (20)
1. a kind of display panel, which is characterized in that including underlay substrate and the multiple displays being set on the underlay substrate
Unit, each display unit include organic luminescence display unit and micro- lbd display unit；
When the low grayscale display of the display unit, the organic luminescence display unit is opened, micro- diode displaying
Unit is closed；
When the display unit high gray is shown, the organic luminescence display unit turns off or on, micro- light-emitting diodes
Pipe display unit is opened, wherein,
The intensity value ranges of the low grayscale are greater than being equal to 0 and less than or equal to X, and the intensity value ranges of the high gray are greater than
X and less than or equal to Y, wherein, X and Y are positive integer, and Y is the highest grayscale of display screen.
2. display panel according to claim 1, which is characterized in that the intensity value ranges of the low grayscale are greater than being equal to
0 and less than or equal to 128, the intensity value ranges of the high gray are greater than 128 and less than or equal to 256.
3. display panel according to claim 1, which is characterized in that further include the first pixel-driving circuit and the second pixel
Driving circuit, first pixel-driving circuit include first film transistor, and second pixel-driving circuit includes second
Thin film transistor (TFT), wherein, each organic luminescence display unit is coupled with corresponding one first pixel-driving circuit, often
A micro- lbd display unit is coupled with corresponding one second pixel-driving circuit, the first film crystal
Pipe and second thin film transistor (TFT) include source electrode, drain and gate.
4. display panel according to claim 3, which is characterized in that further include driving unit, the first data line, the second number
According to line, the first scan line and the second scan line；
Wherein, the driving unit is believed by first scan line to the first driving of first pixel-driving circuit input
Number, the first data-signal is inputted to first pixel-driving circuit by first data line, is scanned by described second
Line inputs the second drive signal to second pixel-driving circuit, by second data line to second pixel driver
Circuit inputs the second data-signal.
5. display panel according to claim 3, which is characterized in that further include driving unit, the first data line, the second number
According to line, scan line；
Wherein, the driving unit is electric to first pixel-driving circuit and second pixel driver by the scan line
Road input drive signal inputs the first data-signal to first pixel-driving circuit by first data line, passes through
Second data line inputs the second data-signal to second pixel-driving circuit.
6. the display panel according to claim 3, which is characterized in that second thin film transistor (TFT) is brilliant for sull
Body pipe.
7. display panel according to claim 6, which is characterized in that second thin film transistor (TFT) is thin for N-shaped oxide
Film transistor.
8. display panel according to claim 6, which is characterized in that micro- lbd display unit is included along remote
Bottom electrode, the micro-led and top electrodes set gradually from the underlay substrate direction, the bottom electrode with
The drain electrode electrical connection of second thin film transistor (TFT).
9. display panel according to claim 3, which is characterized in that the first film transistor is thin for low temperature polycrystalline silicon
Film transistor.
10. display panel according to claim 9, which is characterized in that the first film transistor is p-type low-temperature polysilicon
Silicon thin film transistor.
11. display panel according to claim 9, which is characterized in that further include flatness layer, the organic light emitting display list
Member includes the anode, light emitting functional layer and the cathode that are set gradually along the flatness layer far from one side surface of underlay substrate, institute
State the drain electrode electrical connection of anode and the first film transistor.
12. display panel according to claim 1, which is characterized in that in each display unit, include an institute
Organic luminescence display unit is stated, and micro- diode displaying is at least set around the organic luminescence display unit
Unit.
13. display panel according to claim 12, which is characterized in that described organic in each display unit
One micro- lbd display unit is set around luminescence display unit.
14. a kind of display device, which is characterized in that the display device includes claim 1-13 any one of them display surfaces
Plate.
15. a kind of driving method suitable for display panel described in claim 1, which is characterized in that
The display panel further includes driving unit, the first pixel-driving circuit and the second pixel-driving circuit, wherein, the drive
Moving cell is turned on and off the organic luminescence display unit by first pixel-driving circuit, passes through second pixel
Driving circuit is turned on and off micro- lbd display unit；
When the low grayscale display of the display unit, the organic luminescence display unit is opened, micro- diode displaying
Unit is closed；
When the display unit high gray is shown, the organic luminescence display unit turns off or on, micro- light-emitting diodes
Pipe display unit is opened, wherein,
The intensity value ranges of the low grayscale are greater than being equal to 0 and less than or equal to X, and the intensity value ranges of the high gray are greater than
X and less than or equal to Y, wherein, X and Y are positive integer, and Y is the highest grayscale of display screen.
16. the driving method of display panel according to claim 15, which is characterized in that the gray value model of the low grayscale
It encloses and is greater than being equal to 0 and less than or equal to 128, the intensity value ranges of the high gray are greater than 128 and less than or equal to 256.
17. the driving method of display panel according to claim 15, which is characterized in that
The first data line, the second data line, the first scan line and the second scan line are further included, wherein,
For display unit each described, when the driving unit by first scan line to first pixel driver
Circuit inputs the first drive signal, and the organic luminescence display unit is opened, and first data line drives to first pixel
Dynamic circuit inputs the first data-signal；Believed by second scan line to the second driving of second pixel-driving circuit input
Number, when the micro- lbd display unit is closed, the low grayscale of the display unit is shown；
For display unit each described, when the driving unit by first scan line to first pixel driver
Circuit inputs the first drive signal, and the organic luminescence display unit is opened, and first data line drives to first pixel
Dynamic circuit inputs the first data-signal or the organic luminescence display unit is closed；By second scan line to described
Second pixel-driving circuit inputs the second drive signal, and micro- lbd display unit is opened, second data line
When inputting the second data-signal to second pixel-driving circuit, the display unit high gray is shown.
18. the driving method of display panel according to claim 15, which is characterized in that
Further include driving unit, the first data line, the second data line, scan line
For display unit each described, when the driving unit by the scan line to first pixel-driving circuit
With the second pixel-driving circuit input drive signal, the organic luminescence display unit is opened, micro- light emitting diode
Display unit is closed, when first data line is to first pixel-driving circuit the first data-signal of input, the display
The low grayscale of unit is shown；
For display unit each described, when the driving unit by the scan line to first pixel-driving circuit
With the second pixel-driving circuit input drive signal, the organic luminescence display unit is closed, micro- light emitting diode
Display unit open, by second data line to second pixel-driving circuit input the second data-signal when, it is described
Display unit high gray is shown.
19. the driving method of display panel according to claim 15, which is characterized in that first pixel-driving circuit
Including first film transistor, the first film transistor is low-temperature polysilicon film transistor；Second pixel driver
Circuit includes the second thin film transistor (TFT), and second thin film transistor (TFT) is oxide thin film transistor.
20. the driving method of display panel according to claim 19, which is characterized in that the first film transistor is
P-type low-temperature polysilicon film transistor；Second thin film transistor (TFT) is N-shaped oxide thin film transistor.
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