CN106444141B - A kind of display panel and preparation method thereof, display device - Google Patents

A kind of display panel and preparation method thereof, display device Download PDF

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Publication number
CN106444141B
CN106444141B CN201611177062.5A CN201611177062A CN106444141B CN 106444141 B CN106444141 B CN 106444141B CN 201611177062 A CN201611177062 A CN 201611177062A CN 106444141 B CN106444141 B CN 106444141B
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China
Prior art keywords
area
polaroid
point
display panel
color coordinates
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CN201611177062.5A
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CN106444141A (en
Inventor
连琴凤
周婷
沈柏平
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Tianma Microelectronics Co Ltd
Xiamen Tianma Microelectronics Co Ltd
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Tianma Microelectronics Co Ltd
Xiamen Tianma Microelectronics Co Ltd
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504Diffusing, scattering, diffracting elements
    • G02F1/133507Films for enhancing the luminance
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133614Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

Abstract

This application provides a kind of display panel and preparation method thereof, display device, the viewing area of the display panel is divided into first area and second area around the first area;It is less than the blue light transmittance of the part of corresponding first area by the blue light transmittance that the first polaroid being set between array substrate and backlight corresponds to the part of second area;And the blue light transmittance for being set to the part that second polaroid of the color membrane substrates away from the array substrate side corresponds to second area is less than the blue light transmittance of the part of corresponding first area, to reduce the exitance of blue light, the marginal position for avoiding corresponding viewing area shows partially blue phenomenon, improves the image displaying quality of display panel.

Description

A kind of display panel and preparation method thereof, display device
Technical field
The present invention relates to technical field of liquid crystal display, more specifically to a kind of display panel and preparation method thereof, show Showing device.
Background technique
Liquid crystal display device has been widely used in people's due to having many advantages, such as Low emissivity, small in size and low in energy consumption In life and work, specifically such as apply in laptop, personal digital assistant, flat-surface television, mobile phone electronic equipment In.
Generally, liquid crystal display panel includes display module and backlight module, wherein backlight module is for being emitted uniformly White light.In the prior art, backlight module includes issuing the back light of blue light and being excited by blue light to generate green light and red The quantum dot light emitting of light enhances film.Liquid crystal display excites quantum dot luminescence enhancement in display, through the back light of blue light Quantum dot in film generates feux rouges and green light, and the blue light issued with blue-ray LED generates white light.
In existing liquid crystal display panel, the quantum dot damage of the marginal portion of quantum dot light emitting enhancing film is caused due to cutting It is bad or the reasons such as be oxidized, cause backlight quantum dot luminescence enhancement film edge position blue light to increase, green light and feux rouges are reduced, into And the marginal position for the viewing area that the backlight that backlight module is emitted corresponds to liquid crystal display panel shows indigo plant partially, and it is aobvious to influence image Show quality.
Summary of the invention
In view of this, improving display panel the present invention provides a kind of display panel and preparation method thereof, display device Image displaying quality.
To achieve the above object, the invention provides the following technical scheme:
A kind of display panel, the viewing area of the display panel include first area and around the second of the first area Region;The display panel includes:
Color membrane substrates, array substrate and the backlight being oppositely arranged, the array substrate are located at the color membrane substrates and institute It states between backlight;
The first polaroid being set between the array substrate and the backlight corresponds to the described of the second area The blue light transmittance of first polaroid is less than the blue light transmittance of the first polaroid of the corresponding first area;
It is set to the second polaroid that the color membrane substrates deviate from the array substrate side, the corresponding second area The blue light transmittance of second polaroid is less than the blue light transmittance of the second polaroid of the corresponding first area;
The backlight includes: Blue backlight and between the Blue backlight and first polaroid Quantum dot light emitting enhances film.
Optionally, the white color coordinates of each point are less than the of first polaroid in the first area of first polaroid The white color coordinates of each point in two regions;
The white color coordinates of each point are less than the second area of second polaroid in the first area of second polaroid The white color coordinates of interior each point.
Optionally, the white color coordinates of each point and each point in the first area in the second area of first polaroid The difference of white color coordinates is greater than or equal to the first preset value, and is less than or equal to the second preset value;
The white color coordinates of each point and the white of each point in the first area are sat in the second area of second polaroid Target difference is greater than or equal to first preset value, and is less than or equal to second preset value.
Optionally, the second area includes the first subregion and the second subregion around first subregion;
The white color coordinates of each point are less than the second son of first polaroid in first subregion of first polaroid The white color coordinates of each point in region;
The white color coordinates of each point are less than the second son of first polaroid in first subregion of second polaroid The white color coordinates of each point in region.
Optionally, each in the white color coordinates of each point and first subregion in the second subregion of first polaroid The difference of the white color coordinates of point is greater than or equal to first preset value, and is less than or equal to second preset value;
In second subregion of second polaroid white color coordinates of each point in first subregion each point it is white The difference of chromaticity coordinates is greater than or equal to first preset value, and is less than or equal to second preset value.
Optionally, the value range of first preset value is (0,0.001)~(0.001,0.01), including endpoint value;
The value range of second preset value is (0.01,0.02)~(0.03,0.04), including endpoint value.
Optionally, on the second area preset and the viewing area boundary it is nearest at a distance from be first distance;
The white color coordinates of preset are (x1, y1) in the second area of first polaroid, and the x1 and y1 are with institute It states the increase of first distance and reduces;
The white color coordinates of preset are (x2, y2) in the second area of second polaroid, and the x2 and y2 are with institute It states the increase of first distance and reduces.
Optionally, the preset of second subregion and the viewing area boundary it is nearest at a distance from be second distance;
In second subregion of first polaroid white color coordinates of preset be (x3, y3), the x3 and y3 with The increase of the second distance and reduce;
In second subregion of second polaroid white color coordinates of preset be (x4, y4), the x4 and y4 with The increase of the second distance and reduce.
Optionally, the normal of the boundary of the viewing area and second area and the boundary line of first area along viewing area boundary The distance in direction is 0.1mm~4.6mm, including endpoint value.
A kind of production method of display panel, the display panel include: the color membrane substrates being oppositely arranged, array substrate and Backlight, the array substrate is between the color membrane substrates and the backlight;The backlight includes: Blue backlight And the quantum dot light emitting between the Blue backlight and the array substrate enhances film;This method comprises:
There is provided the first polaroid and the second polaroid, first polaroid and second polaroid and the display surface The viewing area of plate is corresponding, and first polaroid and second polaroid include first area and around the first area Second area;
The second area of first polaroid is heated, so that the blue light transmittance of the second area of first polaroid Less than the blue light transmittance of the first area of first polaroid;
The second area of second polaroid is heated, so that the blue light transmittance of the second area of first polaroid Less than the blue light transmittance of the first area of first polaroid;
First polaroid is set between the array substrate and the backlight;
Second polaroid is set away from the array substrate side in the color membrane substrates.
Optionally, the mode of the second area of heating first polaroid is to toast first polaroid Second area, the baking temperature is 80 DEG C~120 DEG C, including endpoint value.
Optionally, the mode of the second area of heating second polaroid is to toast second polaroid Second area, the baking temperature is 80 DEG C~120 DEG C, including endpoint value.
Optionally, the mode of the second area of the heating first polaroid is, using mask plate to described first The second area of polaroid carries out ultraviolet light, and the light penetration that the mask plate corresponds to the second area is greater than described Mask plate corresponds to the light penetration of the first area.
Optionally, the mode of the second area of the heating second polaroid is, using the mask plate to described The second area of second polaroid carries out ultraviolet light.
Optionally, after the second area of the heating first polaroid, setting first polaroid it Before, further includes:
Step 1: carrying out coloration test to first polaroid;
Step 2: judging whether the test result reaches preset standard, if it is not, then heating the of first polaroid Two regions, and return to the first step;
The preset standard includes: the white color coordinates of each point and firstth area in the second area of first polaroid The difference of the white color coordinates of each point is greater than or equal to the first preset value in domain, and is less than or equal to the second preset value.
Optionally, after the second area of the heating second polaroid, setting second polaroid it Before, further includes:
Step 3: carrying out coloration test to second polaroid;
Step 4: judging whether the test result reaches preset standard, if it is not, then heating the of second polaroid Two regions, and return to third step;
The preset standard includes: the white color coordinates of each point and firstth area in the second area of first polaroid The difference of the white color coordinates of each point is greater than or equal to the first preset value in domain, and is less than or equal to the second preset value.
Optionally, the value range of first preset value is (0,0.001)~(0.001,0.01), including endpoint value;
The value range of second preset value is (0.01,0.02)~(0.03,0.04), including endpoint value.
A kind of display device, including any display panel in above scheme.
Compared with prior art, the technical scheme provided by the invention has the following advantages:
Display panel provided in an embodiment of the present invention and preparation method thereof, display device, by the display of the display panel Zoning is divided into first area and the second area around the first area;By being set between array substrate and backlight The blue light transmittance that first polaroid corresponds to the part of second area is less than the blue light transmittance of the part of corresponding first area;And And it is set to the blue light light transmission that second polaroid of the color membrane substrates away from the array substrate side corresponds to the part of second area The blue light transmittance that rate is less than the part of corresponding first area avoids corresponding viewing area to reduce the exitance of blue light Marginal position show partially blue phenomenon, improve the image displaying quality of display panel.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 is viewing area subregion schematic diagram in one embodiment of the invention;
Fig. 2 is the structural schematic diagram of display panel in one embodiment of the invention;
Fig. 3 is the back board structure schematic diagram of display panel in one embodiment of the invention;
Fig. 4 is absorptance example diagram of the PVA-I to light of heterogeneity in one embodiment of the invention;
Fig. 5 is viewing area second area subregion schematic diagram in one embodiment of the invention;
Fig. 6 is second area preset and viewing area boundary minimum distance schematic diagram in another embodiment of the present invention;
Fig. 7 is the second subregion preset and viewing area boundary minimum distance schematic diagram in further embodiment of this invention;
Fig. 8 is the production method flow chart of the display panel in one embodiment of the invention;
Fig. 9 is the structural schematic diagram of the display device in one embodiment of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with Implemented using other than the one described here other way, those skilled in the art can be without prejudice to intension of the present invention In the case of do similar popularization, therefore the present invention is not limited by the specific embodiments disclosed below.
Secondly, combination schematic diagram of the present invention is described in detail, when describing the embodiments of the present invention, for purposes of illustration only, table Show that the schematic diagram of device architecture can disobey general proportion and make partial enlargement, and the schematic diagram is example, is not answered herein Limit the scope of protection of the invention.In addition, the three-dimensional space of length, width and depth should be included in actual fabrication.
As stated in the background art, due to cut cause quantum dot light emitting enhancing film marginal portion quantum dot damage or It the reasons such as being oxidized, backlight quantum dot luminescence enhancement film edge position blue light is caused to increase, green light and feux rouges are reduced, so that The marginal position for the viewing area that the backlight of backlight module outgoing corresponds to liquid crystal display panel shows indigo plant partially, influences image and shows matter Amount.
Inventor is the study found that improve image displaying quality, it should the light transmittance of blue light is reduced, to avoid more indigo plant Light outgoing, so as to cause viewing area marginal position show partially indigo plant problem.
Further, inventors have found that the margin location of viewing area can be solved by adjusting the light penetration of polaroid Set the partially blue problem of display.Polaroid is one of raw material of liquid crystal display, is formed by layer high molecule Material cladding.Polarisation Layer is made after dyeing stretches of PVA (polyvinyl alcohol) film, which is the major part of polaroid, and also referred to as polarisation is former Film, it determines the polarizing properties of polaroid, transmitance, while also influencing polaroid tone and optical durability.By specific Processing method after, can reduce the light transmittance of polaroid blue light.
In view of this, the embodiment of the invention provides a kind of display panel and including the display device of the display panel, institute The viewing area for stating display panel includes first area and the second area around the first area;The display panel includes:
Color membrane substrates, array substrate and the backlight being oppositely arranged, the array substrate are located at the color membrane substrates and institute It states between backlight;The first polaroid being set between the array substrate and the backlight, the corresponding second area The first polaroid blue light transmittance be less than the corresponding first area the first polaroid blue light transmittance;It is set to The color membrane substrates deviate from the second polaroid of the array substrate side, second polaroid of the corresponding second area Blue light transmittance be less than the corresponding first area second polaroid blue light transmittance;The backlight includes: Blue backlight and the quantum dot light emitting between the Blue backlight and first polaroid enhance film.
Specifically, the viewing area of the display panel is divided into first area and around the secondth area of the first area Domain, wherein first area can be the normal region of emergent light inside viewing area, and second area can be emitted for edge of display area The partially blue region of light, specifically, can be configured according to the actual situation on the basis of disclosed by the invention.
In embodiments of the present invention, the color membrane substrates may include glass substrate and the color film knot on glass substrate Structure.In the display panel with touch function, touch-control sensing electrode can also be set, and then can be on the color membrane substrates Touch detection electrodes form inductance capacitance, to realize the detection of position of touch.
Array substrate, general thin film transistor (TFT) array, pixel electrode, public electrode etc. control picture by thin film transistor (TFT) The voltage of plain electrode is allowed to generate electric field with public electrode, so that the liquid crystal in liquid crystal layer be driven to rotate, and then controls permeate The transmissivity of the light of crystal layer.In addition, in addition to above structure, in the display panel with position touch function, array substrate On be additionally provided with touch detection electrodes corresponding with touch-control sensing electrode, to realize detection to position of touch.
Blue backlight is provided in backlight and positioned at the Blue backlight and the covering Blue backlight Quantum dot light emitting enhances film, wherein Blue backlight includes blue light LED light source and light guide plate, and blue light LED light source launches light into Light is oriented to preset direction and position by light guide plate by light guide plate.Quantum dot light emitting enhances film under the excitation of blue light, raw White light is generated at feux rouges and green light, and with blue light.
Between the array substrate and the backlight, it is provided with the first polaroid, first polaroid is used for will The light that backlight module issues is adjusted to the light vibrated by specific direction, in order to which liquid crystal layer passes through the vibration of deflection adjustment light Dynamic direction.In embodiments of the present invention, the blue light transmittance of the first polaroid of the corresponding second area of setting, which is less than, corresponds to The blue light transmittance of first polaroid of the first area avoids corresponding aobvious to reduce the exitance of blue light Show that the marginal position in area shows partially blue phenomenon.
Also, deviates from the array substrate side in the color membrane substrates, be provided with the second polaroid, second polarisation The light that piece is used to adjust liquid crystal layer direction of vibration carries out adjustment again, makes the default light vibrated by specific direction Pass through, and the light in other directions cannot pass through, and then go out and project the different light of brightness.In embodiments of the present invention, it is arranged The blue light transmittance of second polaroid of the corresponding second area is less than second polaroid of the corresponding first area Blue light transmittance, to reduce the exitance of blue light, the marginal position for avoiding corresponding viewing area shows partially blue phenomenon.
Also, the embodiment of the present invention also provides a kind of production method of display panel, wherein the display panel includes: Color membrane substrates, array substrate and the backlight being oppositely arranged, the array substrate are located at the color membrane substrates and the backlight Between;The backlight includes: Blue backlight and the quantum between the Blue backlight and the array substrate Point luminescence enhancement film;This method comprises:
There is provided the first polaroid and the second polaroid, first polaroid and second polaroid and the display surface The viewing area of plate is corresponding, and first polaroid and second polaroid include first area and around the first area Second area;
The second area of first polaroid is heated, so that the blue light transmittance of the second area of first polaroid Less than the blue light transmittance of the first area of first polaroid;
The second area of second polaroid is heated, so that the blue light transmittance of the second area of first polaroid Less than the blue light transmittance of the first area of first polaroid;
First polaroid is set between the array substrate and the backlight;
Second polaroid is set away from the array substrate side in the color membrane substrates.
Display panel provided in an embodiment of the present invention and preparation method thereof, display device, by the display of the display panel Zoning is divided into first area and the second area around the first area;By being set between array substrate and backlight The blue light transmittance that first polaroid corresponds to the part of second area is less than the blue light transmittance of the part of corresponding first area;And And it is set to the blue light light transmission that second polaroid of the color membrane substrates away from the array substrate side corresponds to the part of second area The blue light transmittance that rate is less than the part of corresponding first area avoids corresponding viewing area to reduce the exitance of blue light Marginal position show partially blue phenomenon, improve the image displaying quality of display panel.
It is the basic thought of the application above, in order to make the technical scheme provided by the embodiment of the invention clearer, below Above-mentioned technical proposal of the present invention is described in detail.
One embodiment of the invention provides a kind of display panel, as shown in Fig. 1~5, the viewing area of the display panel Including first area 11 and around the second area 12 of the first area;Wherein, by the display Division of the display panel For first area 11 and around the second area 12 of the first area, wherein first area 11 can go out for viewing area inside Penetrate the normal region of light, the region that second area 12 can be partially blue for edge of display area emergent light, specifically, in the present embodiment In, the boundary of the viewing area and second area 12 and the boundary line of first area 11 along viewing area boundary normal direction away from It can be 0.1mm~4.6mm, including endpoint value from d.It in other embodiments of the invention, can also be according to different positions Different d values is set, such as by paper schematic diagram up and down for, can be set the display panel up and down two sides second The boundary line in region 12 and first area 11 it is bigger at a distance from the boundary of viewing area, be arranged the left and right sides 12 He of second area Smaller at a distance from the boundary of viewing area, the i.e. display panel second area 12 of two sides and the up and down of the boundary line of first area 11 The second area 12 for being greater than the left and right sides at a distance from the boundary of viewing area of the boundary line in one region 11 and the friendship of first area 11 Boundary line at a distance from the boundary of viewing area.Those skilled in the art can specifically be set on the basis of disclosed by the invention It sets, the present invention is not specifically limited herein.
Specifically, as shown in Fig. 2, the display panel includes:
Color membrane substrates 21, array substrate 22 and the backlight 23 being oppositely arranged, the array substrate 22 are located at the color film Between substrate 21 and the backlight 23.
In embodiments of the present invention, the color membrane substrates 21 may include glass substrate 210 and on glass substrate Color membrane structure, specifically, the color membrane structure includes color blocking 211 and the black matrix 212 around the color blocking.
In the display panel with touch function of other embodiments of the invention, it can also be arranged on the color membrane substrates Touch-control sensing electrode, and then inductance capacitance can be formed with touch detection electrodes, to realize the detection of position of touch.
Array substrate 22 includes thin film transistor (TFT) array 221, pixel electrode 222 and public electrode 223, passes through film crystal Pipe 221 controls the voltage of pixel electrode 222, is allowed to generate electric field with public electrode 223, so that display panel be driven to be corresponded to Display.
In addition, being also set up in array substrate in the display panel with touch function in other embodiments of the invention There are touch detection electrodes corresponding with touch-control sensing electrode, to realize the detection to position of touch.
The structure of backlight 23 as shown in figure 3, backlight include: Blue backlight and be located at the Blue backlight with Quantum dot light emitting between first polaroid 24 enhances film 233, wherein Blue backlight includes blue light LED light source 231 and leaded light Plate 232, blue light LED light source 231 launch light into light guide plate 232, and quantum dot light emitting enhances film 233 under the excitation of blue light, raw White light is generated at feux rouges and green light, and with blue light.
Between the array substrate 22 and the backlight 23, it is provided with the first polaroid 24, wherein corresponding described the The blue light transmittance of first polaroid in two regions is less than the first polaroid blue light transmittance of the corresponding first area, thus The exitance for reducing blue light, the marginal position for avoiding corresponding viewing area show partially blue phenomenon.
Also, it is set to the second polaroid 25 that the color membrane substrates 21 deviate from 22 side of array substrate, corresponding institute The blue light transmittance for stating the first polaroid of second area 12 is less than the blue light for corresponding to the first polaroid of the first area 11 Light transmittance.
Specifically, the polaroid for corresponding to the second area can be made by way of high-temperature baking or ultraviolet light irradiation Blue light transmittance reduce.This is because, under high temperature environment, the extinction ingredient of (550nm) near polaroid visible light yellow light PVA-I (I-PVA) complex compound slightly decomposes, so that part pentavalent iodine is converted into iodonium (I5- → I3-), wherein three The ratio that the PVA-I of valence iodine (I3-) absorbs blue light is significantly greater than the PVA-I of pentavalent iodine (I5-), so that blue light transmittance be caused to drop It is low, while the iodic PVA-I content for absorbing yellow light reduces, further such that yellow light light transmittance increases, and then promotes Light mixing occurs for the extra blue light and yellow light of the second area, forms white light.
Specifically, referring to heterogeneity in Fig. 4 PVA-I to the absorptance example diagram of light, wherein abscissa represents light Wavelength, ordinate represents to the assimilation ratio of light, it can be seen that the PVA-I of iodonium (I3-) absorb blue light (400nm~ 480nm, the section between two dotted lines) ratio be significantly greater than the PVA-I of pentavalent iodine (I5-), therefore, iodonium (I3-) The increase of PVA-I ingredient can effectively absorb blue light, reduce blue light transmittance.
Also, the white color coordinates that each point in the first area of first polaroid in the present embodiment, is arranged are less than institute The white color coordinates of each point in the second area of the first polaroid are stated, the white of each point is sat in the first area of second polaroid Mark is less than the white color coordinates of each point in the second area of second polaroid.Specifically, the white color coordinates are coloration test Result, wherein certain point white color coordinates increase, i.e., the point yellow light light transmittance increase, blue light transmittance reduce.It is arranged described The white that the white color coordinates of each point are less than each point in the second area of first polaroid in the first area of one polaroid is sat It marks, the white color coordinates of each point are less than each point in the second area of second polaroid in the first area of second polaroid White color coordinates, i.e., so that each point yellow light light transmittance increases in the second area of the first polaroid and the second polaroid, blue light is saturating Light rate reduces.
Further, in the present embodiment, the white of each point in the second area of first polaroid can also be set The difference of the white color coordinates of each point is greater than or equal to the first preset value in coordinate and the first area, and it is pre- to be less than or equal to second If value;The white color coordinates of each point and the white color coordinates of each point in the first area in the second area of second polaroid Difference is greater than or equal to first preset value, and is less than or equal to second preset value, to further increase first area Transmissivity difference between second area, while the edge of display area for avoiding excessive difference from causing display panel turns to be yellow.
Wherein it is possible to which the value range that first preset value is arranged is (0,0.001)~(0.001,0.01), including end Point value;The value range of second preset value is (0.01,0.02)~(0.03,0.04), including endpoint value.Of the invention In other embodiments, biggish first preset value and the second preset value can also be further set on the basis of the present invention.
Further, it is contemplated that the marginal portion quantum dot damage of quantum dot light emitting enhancing film layer is oxidized with more By proximal edge, the degree of damage or oxidation is bigger, that is to say, that in display panel viewing area, closer to edge, partially blue feelings Condition is more serious, therefore, in the present embodiment, as shown in figure 5, the partially blue second area 12 of display is divided into the first subregion 121 and around first subregion the second subregion 122;Wherein, the second subregion 122 is located at the first subregion 121 Periphery, therefore, the partially blue situation of the display of the second subregion 122 is more serious than the first subregion 121.
Specifically, in the present embodiment, as shown in figure 5, the boundary of the viewing area and the second subregion 122 and the first son The distance d that the boundary line in region 121 is 0.2~0.7 times along the distance c of the normal direction on viewing area boundary, including endpoint value.? In the present embodiment, distance c is 0.5 times of distance d.
In view of this, the white color coordinates of each point in the first subregion 121 of first polaroid are arranged in the present embodiment Less than the white color coordinates of each point in the second subregion 122 of first polaroid;First subregion of second polaroid The white color coordinates of each point are less than the white color coordinates of each point in the second subregion 122 of first polaroid in 121, pass through basis The practical damage situations that quantum dot light emitting enhances film carry out the setting of different zones, so that the first polaroid and the second polaroid Each point yellow light light transmittance further increases in second subregion, and blue light transmittance further decreases, and then obtains edge of display area Obtain more uniform white light.
Also, the white that each point in the second subregion of first polaroid in the present embodiment, is further arranged is sat The difference of mark and the white color coordinates of each point in first subregion is greater than or equal to first preset value, and is less than or equal to institute State the second preset value;The white color coordinates of each point and each point in first subregion in second subregion of second polaroid White color coordinates difference be greater than or equal to first preset value, and be less than or equal to second preset value.So as into One step carries out the setting of different situations according to the practical damage situations that quantum dot light emitting enhances film, to offset edge of display area difference The partially blue problem of degree.
Also, in another embodiment of the invention, the marginal portion further to alleviate quantum dot luminescence enhancement film layer Quantum dot damage is perhaps oxidized the problem bigger with the degree damaged or aoxidized closer to edge, with secondth area On domain preset and the viewing area boundary it is nearest at a distance from be first distance;The partial enlargement of display panel as shown in FIG. 6 Schematic diagram, distance a is first distance recently by preset P and viewing area boundary in second area 12, with first polarisation In the second area of piece the white color coordinates of preset P be (x1, y1), the x1 and y1 with the increase of the first distance a and Reduce;The white color coordinates of preset P are (x2, y2) in the second area of second polaroid, and the x2 and y2 are with described The increase of first distance and reduce.
In another embodiment of the present invention, it is contemplated that closer to edge, the partially blue variation degree in viewing area is bigger, because This, can also the white color coordinates of polaroid only to the second subregion close to fringe region be configured.As shown in Figure 7 is aobvious Show the partial enlargement diagram of panel, can only be arranged the preset of the second subregion and the viewing area boundary it is nearest at a distance from For second distance b;The white color coordinates of preset q are (x3, y3), the x3 and y3 in second subregion of first polaroid Reduce with the increase of the second distance;The white color coordinates of preset are in second subregion of second polaroid (x4, y4), the x4 and y4 are reduced with the increase of the second distance.
As can be seen that the viewing area of the display panel is divided into first area and around the second of the first area Region;By the blue light transmittance of the second area of the first polaroid that will be set between array substrate and backlight less than The blue light transmittance in one region;And by be set to color membrane substrates away from the array substrate side the second polaroid second The blue light transmittance in region is less than the blue light transmittance of first area, to reduce the exitance of blue light, avoids corresponding aobvious Show that the marginal position in area shows partially blue phenomenon, improves the image displaying quality of display panel.
In one embodiment of the invention, a kind of production method of display panel is provided, wherein the display panel It include: the color membrane substrates being oppositely arranged, array substrate and backlight, the array substrate is located at the color membrane substrates and the back Between tabula rasa;The backlight includes: Blue backlight and between the Blue backlight and the array substrate Quantum dot light emitting enhances film;As shown in figure 8, this method comprises:
Step S11: the first polaroid and the second polaroid, first polaroid and second polaroid and institute are provided The viewing area for stating display panel is corresponding, and first polaroid and second polaroid include first area and surround described The second area of first area;
Step S12: the second area of heating first polaroid, so that the indigo plant of the second area of first polaroid Light transmittance is less than the blue light transmittance of the first area of first polaroid;
Step S13: the second area of heating second polaroid, so that the indigo plant of the second area of first polaroid Light transmittance is less than the blue light transmittance of the first area of first polaroid;
Step S14: first polaroid is set between the array substrate and the backlight;
Step S15: second polaroid is set away from the array substrate side in the color membrane substrates.
Specifically, executing step S11, the first polaroid and the second polaroid are provided, first polaroid and described the Two polaroids are corresponding with the viewing area of the display panel, and first polaroid and second polaroid include the firstth area Domain and second area around the first area.
In the present embodiment, Fig. 1 can be referred to, the first polaroid and the second polaroid are divided into first area 11 and surround The second area 12 of the first area, wherein first area 11 can be the normal region of emergent light inside viewing area, second Region 12 can be partially blue for edge of display area emergent light region, specifically, in the present embodiment, the boundary of the viewing area with Second area 12 and the boundary line of first area 11 along the normal direction on viewing area boundary distance d can for 0.1mm~ 4.6mm, including endpoint value.In other embodiments of the invention, different d values can also be set according to different positions, such as By paper schematic diagram up and down for, can be set the display panel up and down two sides second area 12 and first area 11 boundary line it is bigger at a distance from the boundary of viewing area, be arranged the left and right sides second area 12 and first area 11 boundary Smaller at a distance from the boundary of viewing area, i.e., the second area 12 of two sides and the boundary line of first area 11 above and below display panel of line At a distance from the boundary of viewing area greater than the left and right sides second area 12 and first area 11 boundary line with viewing area side The distance on boundary.Those skilled in the art can be specifically arranged on the basis of disclosed by the invention, and the present invention is not done herein It is specific to limit.
Then, step S12 is executed, the second area of first polaroid is heated, so that the of first polaroid The blue light transmittance in two regions is less than the blue light transmittance of the first area of first polaroid.
Specifically, the polaroid for corresponding to the second area can be made by way of high-temperature baking or ultraviolet light irradiation Blue light transmittance reduce.This is because, under high temperature environment, the extinction ingredient of (550nm) near polaroid visible light yellow light PVA-I (I-PVA) complex compound slightly decomposes, so that part pentavalent iodine is converted into iodonium (I5- → I3-), wherein three The ratio that the PVA-I of valence iodine (I3-) absorbs blue light is significantly greater than the PVA-I of pentavalent iodine (I5-), so that blue light transmittance be caused to drop It is low, while the iodic PVA-I content for absorbing yellow light reduces, further such that yellow light light transmittance increases, and then promotes Light mixing occurs for the extra blue light and yellow light of the second area, forms white light.
In the present embodiment, the mode of the second area of the heating first polaroid is specifically, baking described the The second area of one polaroid, the baking temperature is 80 DEG C~120 DEG C, including endpoint value.Specifically, can be described first The first area of polaroid covers thermal insulation layer, only exposes the second area of the first polaroid, is toasted, until reaching expected Effect.
In other embodiments of the invention, the mode of the second area of the heating first polaroid can be with To carry out ultraviolet light using second area of the mask plate to first polaroid, the mask plate corresponds to described second The light penetration in region is greater than the light penetration that the mask plate corresponds to the first area.Those skilled in the art can be with Understand, is handled by the way of mask plate plus ultraviolet light, degree of controllability and accuracy are all higher.Specifically, making When mask plate, specific light penetration can be adjusted by adjusting the thickness of mask plate, that is, closer to edge, mask plate is got over It is thin, to be more likely to form stepping second area, to adapt to quantum dot luminescence enhancement film layer closer to edge, damage or The bigger situation of the degree of person's oxidation, and then keep the light uniformity of viewing area entirety.
Then, step S13 is executed, the second area of second polaroid is heated, so that the of first polaroid The blue light transmittance in two regions is less than the blue light transmittance of the first area of first polaroid.
Specifically, treatment process is identical with step S12, specifically, the second area of heating second polaroid Mode be to toast the second area of second polaroid, the baking temperature is 80 DEG C~120 DEG C, including endpoint value.
Also, in other embodiments of the invention, the mode of the second area of the heating second polaroid is also It can be that ultraviolet light is carried out using second area of the mask plate to second polaroid.
In addition, in the present embodiment, after the step S12 and before step S14, can also include:
Step 1: carrying out coloration test to first polaroid;
Step 2: judging whether the test result reaches preset standard, if it is not, then heating the of first polaroid Two regions, and return to the first step;
The preset standard includes: the white color coordinates of each point and firstth area in the second area of first polaroid The difference of the white color coordinates of each point is greater than or equal to the first preset value in domain, and is less than or equal to the second preset value.
Wherein, the value range of first preset value is (0,0.001)~(0.001,0.01), including endpoint value;Institute The value range for stating the second preset value is (0.01,0.02)~(0.03,0.04), including endpoint value.
Specifically, in second step, if it is not, then heating the second area of first polaroid, wherein the heating institute The second area for stating the first polaroid can carry out continuing to heat using the method in step S12 to first polaroid.And And if so, carry out subsequent step.
Also, in the present embodiment, after the step S13 and before step S15, can also include:
Step 3: carrying out coloration test to second polaroid;
Step 4: judging whether the test result reaches preset standard, if it is not, then heating the of second polaroid Two regions, and return to third step;
The preset standard includes: the white color coordinates of each point and firstth area in the second area of first polaroid The difference of the white color coordinates of each point is greater than or equal to the first preset value in domain, and is less than or equal to the second preset value.
Wherein, the value range of first preset value is (0,0.001)~(0.001,0.01), including endpoint value;Institute The value range for stating the second preset value is (0.01,0.02)~(0.03,0.04), including endpoint value.
Specifically, in the 4th step, if it is not, then heating the second area of second polaroid, wherein the heating institute The second area for stating the second polaroid can carry out continuing to heat using the method in step S13 to second polaroid.And And if so, carry out subsequent step.
Then, step S14 is executed, first polaroid is set between the array substrate and the backlight.
Finally, executing step S15, second polarisation is set away from the array substrate side in the color membrane substrates Piece.
Display panel production method provided in this embodiment, by the viewing area of the display panel be divided into first area and Second area around the first area;The secondth area by the first polaroid being set between array substrate and backlight The blue light transmittance in domain is less than the blue light transmittance of first area;And color membrane substrates are set to away from the array substrate side The second polaroid second area blue light transmittance be less than first area blue light transmittance, thus reduce blue light go out Rate is penetrated, the marginal position for avoiding corresponding viewing area shows partially blue phenomenon, improves the image displaying quality of display panel.
In one embodiment of the invention, a kind of display device is additionally provided, as shown in figure 9, including above-described embodiment In display panel 300.
The viewing area of the display panel is divided into first area and around described by display device provided in this embodiment The second area of first area;Pass through the blue light of the second area for the first polaroid being set between array substrate and backlight Light transmittance is less than the blue light transmittance of first area;And be set to color membrane substrates away from the array substrate side second partially The blue light transmittance that the blue light transmittance of the second area of mating plate is less than first area is kept away to reduce the exitance of blue light The marginal position for having exempted from corresponding viewing area shows partially blue phenomenon, improves the image displaying quality of display panel.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (18)

1. a kind of display panel, the viewing area of the display panel includes first area and the secondth area around the first area Domain;It is characterized in that, the display panel includes:
Color membrane substrates, array substrate and the backlight being oppositely arranged, the array substrate are located at the color membrane substrates and the back Between tabula rasa;
The first polaroid being set between the array substrate and the backlight, described the first of the corresponding second area The blue light transmittance of polaroid is less than the blue light transmittance of the first polaroid of the corresponding first area;
It is set to the second polaroid that the color membrane substrates deviate from the array substrate side, corresponds to the second of the second area The blue light transmittance of polaroid is less than the blue light transmittance of the second polaroid of the corresponding first area;
The backlight includes: Blue backlight and the quantum between the Blue backlight and first polaroid Point luminescence enhancement film.
2. display panel according to claim 1, which is characterized in that
The white color coordinates of each point are less than each in the second area of first polaroid in the first area of first polaroid The white color coordinates of point;
The white color coordinates of each point are less than each in the second area of second polaroid in the first area of second polaroid The white color coordinates of point.
3. display panel according to claim 2, which is characterized in that
The white color coordinates of each point and the white color coordinates of each point in the first area in the second area of first polaroid Difference is greater than or equal to the first preset value, and is less than or equal to the second preset value;
The white color coordinates of each point and the white color coordinates of each point in the first area in the second area of second polaroid Difference is greater than or equal to first preset value, and is less than or equal to second preset value.
4. display panel according to claim 1, which is characterized in that the second area includes the first subregion and surrounds Second subregion of first subregion;
The white color coordinates of each point are less than the second subregion of first polaroid in first subregion of first polaroid The white color coordinates of interior each point;
The white color coordinates of each point are less than the second subregion of first polaroid in first subregion of second polaroid The white color coordinates of interior each point.
5. display panel according to claim 4, which is characterized in that
The white color coordinates of each point and the white of each point in first subregion are sat in second subregion of first polaroid Target difference is greater than or equal to the first preset value, and is less than or equal to the second preset value;
The white color coordinates of each point and the white of each point in first subregion are sat in second subregion of second polaroid Target difference is greater than or equal to first preset value, and is less than or equal to second preset value.
6. display panel according to claim 5, which is characterized in that
The value range of first preset value is (0,0.001)~(0.001,0.01), including endpoint value;
The value range of second preset value is (0.01,0.02)~(0.03,0.04), including endpoint value.
7. display panel according to claim 3, which is characterized in that
It is first distance at a distance from the preset of the second area and the boundary of the viewing area are nearest;
The white color coordinates of preset are (x1, y1), the x1 and y1 with described the in the second area of first polaroid The increase of one distance and reduce;
The white color coordinates of preset are (x2, y2), the x2 and y2 with described the in the second area of second polaroid The increase of one distance and reduce.
8. display panel according to claim 5, which is characterized in that
It is second distance at a distance from the preset of second subregion and the boundary of the viewing area are nearest;
The white color coordinates of preset are (x3, y3) in second subregion of first polaroid, and the x3 and y3 are with described The increase of second distance and reduce;
The white color coordinates of preset are (x4, y4) in second subregion of second polaroid, and the x4 and y4 are with described The increase of second distance and reduce.
9. display panel according to claim 1, which is characterized in that
The boundary line of the boundary of the viewing area and second area and first area is at a distance from the normal direction on viewing area boundary For 0.1mm~4.6mm, including endpoint value.
10. a kind of production method of display panel, the display panel include: the color membrane substrates being oppositely arranged, array substrate and Backlight, the array substrate is between the color membrane substrates and the backlight;The backlight includes: Blue backlight And the quantum dot light emitting between the Blue backlight and the array substrate enhances film;It is characterized in that, this method Include:
First polaroid and the second polaroid be provided, first polaroid and second polaroid and the display panel Viewing area is corresponding, and first polaroid and second polaroid include first area and around the of the first area Two regions;
The second area of first polaroid is heated, so that the blue light transmittance of the second area of first polaroid is less than The blue light transmittance of the first area of first polaroid;
The second area of second polaroid is heated, so that the blue light transmittance of the second area of first polaroid is less than The blue light transmittance of the first area of first polaroid;
First polaroid is set between the array substrate and the backlight;
Second polaroid is set away from the array substrate side in the color membrane substrates.
11. manufacturing method according to claim 10, which is characterized in that the secondth area of heating first polaroid The mode in domain is to toast the second area of first polaroid, and baking temperature is 80 DEG C~120 DEG C, including endpoint value.
12. manufacturing method according to claim 10, which is characterized in that the secondth area of heating second polaroid The mode in domain is to toast the second area of second polaroid, and baking temperature is 80 DEG C~120 DEG C, including endpoint value.
13. manufacturing method according to claim 10, which is characterized in that the secondth area of heating first polaroid The mode in domain is to carry out ultraviolet light using second area of the mask plate to first polaroid, the mask plate is corresponding The light penetration of the second area is greater than the light penetration that the mask plate corresponds to the first area.
14. manufacturing method according to claim 10, which is characterized in that the secondth area of heating second polaroid The mode in domain is to carry out ultraviolet light using second area of the mask plate to second polaroid.
15. manufacturing method according to claim 10, which is characterized in that the secondth area of heating first polaroid After domain, before setting first polaroid, further includes:
Step 1: carrying out coloration test to first polaroid;
Step 2: judge whether test result reaches preset standard, if it is not, the second area of first polaroid is then heated, And return to the first step;
The preset standard includes: in the second area of first polaroid in the white color coordinates of each point and the first area The difference of the white color coordinates of each point is greater than or equal to the first preset value, and is less than or equal to the second preset value.
16. manufacturing method according to claim 15, which is characterized in that the secondth area of heating second polaroid After domain, before setting second polaroid, further includes:
Step 3: carrying out coloration test to second polaroid;
Step 4: judge whether test result reaches preset standard, if it is not, the second area of second polaroid is then heated, And return to third step;
The preset standard includes: in the second area of first polaroid in the white color coordinates of each point and the first area The difference of the white color coordinates of each point is greater than or equal to the first preset value, and is less than or equal to the second preset value.
17. production method according to claim 16, which is characterized in that
The value range of first preset value is (0,0.001)~(0.001,0.01), including endpoint value;
The value range of second preset value is (0.01,0.02)~(0.03,0.04), including endpoint value.
18. a kind of display device, which is characterized in that including display panel according to any one of claims 1 to 9.
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