CN103676220A - Display device and manufacturing method thereof - Google Patents

Display device and manufacturing method thereof Download PDF

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Publication number
CN103676220A
CN103676220A CN201210328419.0A CN201210328419A CN103676220A CN 103676220 A CN103676220 A CN 103676220A CN 201210328419 A CN201210328419 A CN 201210328419A CN 103676220 A CN103676220 A CN 103676220A
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energy
blue
display device
display panel
equation
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CN201210328419.0A
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CN103676220B (en
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黄士展
叶政玮
刘桂伶
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Chi Mei Optoelectronics Corp
Innolux Corp
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Chi Mei Optoelectronics Corp
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Priority to CN201711395664.2A priority Critical patent/CN107966848B/en
Priority to CN201210328419.0A priority patent/CN103676220B/en
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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
    • G02F1/1336Illuminating 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
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/28Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
    • H01L27/32Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
    • H01L27/3206Multi-colour light emission
    • H01L27/3211Multi-colour light emission using RGB sub-pixels
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/28Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
    • H01L27/32Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
    • H01L27/3206Multi-colour light emission
    • H01L27/322Multi-colour light emission using colour filters or colour changing media [CCM]
    • 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

The invention provides a display device and a manufacturing method thereof. The display device comprises a display panel. The specific value of green energy and blue energy of light rays emitted by the display panel at a highest grey scale is between 0.7-1.2, in addition, blue color point coordinates (x, y) on a CIE 1931xy chromaticity diagram corresponding to the light rays are in a range between an equation y=-168.72x2+50.312x-3.635 and an equation y=-168.72x2+63.81x-5.9174, and y is between 0.04 and 0.08.

Description

Display device and manufacture method thereof
Technical field
The invention relates to a kind of display device, especially in regard to a kind of display device and manufacture method thereof.
Background technology
Because display device has that build is frivolous, the advantageous characteristic such as low power consumption and low radiation, gradually replaced conventional cathode ray tube (Cathode Ray Tube, CRT) display device, and be applied to various electronic product.
In the design of display device, color taste is a very important design factor, and it can specifically present by chromatic diagram, for example, for a display panel, its light sending can correspond to CIE 1931 chromatic diagrams, and in chromatic diagram, three primary colors (blue, green and red) all have its corresponding color dot, i.e. three of chromatic triangle summits.More universal colourity specification is sRGB at present, and the coordinate of its blue color point in CIE 1931 chromatic diagrams is (0.15,0.06), and the coordinate of green color point is (0.3,0.6), and the coordinate of red color point is (0.64,0.33).If it is too many that three primary colors color dot departs from sRGB standard colors point coordinate, represent that the image color of display panel is lost genuine possibility and made picture disply not good, so that the quality that user watches reduces.
Therefore, how to provide a kind of display device, the corresponding chromatic diagram of its light sending can make three primary colors color dot maintain preferably in scope always, and promotes display quality and product competitiveness, and real is one of current important topic.
Summary of the invention
Because above-mentioned problem, object of the present invention is for a kind of display device and manufacture method thereof are provided, and the corresponding chromatic diagram of its light sending can make three primary colors color dot maintain preferably in ratio and scope always, and lifting display frame quality.
For reaching above-mentioned purpose, according to a kind of display device of the present invention, comprise a display panel, the light that display panel sends, under the condition of high gray (take 8-bit color range as 255 GTGs) green energy of the coloured light energy of gained and in the ratio of a blue energy of high gray gained between 0.7 and 1.2, and on CIE 1931xy chromatic diagram corresponding to this light, blue color point coordinate (x, y) scope is between equation y=-168.72x 2+ 50.312x-3.635 and equation y=-168.72x 2between+63.81x-5.9174, and y is between 0.04 and 0.08.
In one embodiment, green color point coordinate (x, y) scope is between equation y=-48.85x 2+ 22.964x-2.0014 and equation y=-48.85x 2between+26.872x-2.9981, and y is between 0.58 and 0.64.
In one embodiment, green color point coordinate (x, y) scope is between equation y=-48.85x 2+ 22.964x-2.0014 and equation y=-48.85x 2between+26.872x-2.9981, and y is between 0.64 and 0.7.
In one embodiment, under the condition of high gray, the ratio of green energy and blue energy is more between 0.8 and 1.1.
In one embodiment, under the condition of high gray, a red energy of light and the ratio of this blueness energy are between 0.49 and 0.75.
In one embodiment, under the condition of high gray, the ratio of red energy and this blueness energy is more between 0.5 and 0.7.
In one embodiment, red color point coordinate (x, y) scope is between equation y=-2.021x 2+ 2.1871x-0.2218 and equation y=-2.021x 2between+2.1871x-0.2618, and x is between 0.62 and 0.66.
In one embodiment, red color point coordinate (x, y) scope is between equation y=-2.021x 2+ 2.1871x-0.2218 and equation y=-2.021x 2between+2.1871x-0.2618, and x is between 0.66 and 0.68.
In one embodiment, display panel is a display panels, a quantum dot display panel or an organic LED display panel.
In one embodiment, organic LED display panel comprises a substrate and a luminescent layer, and luminescent layer is arranged on substrate and has a plurality of red luminous zones, a plurality of green luminous zone and a plurality of blue luminous zone.
In one embodiment, organic LED display panel comprises a substrate, a luminescent layer and a filter layer, luminescent layer is arranged on substrate and sends white light, and filter layer is arranged on luminescent layer and has a plurality of red filter areas, a plurality of green filter area and a plurality of blue filter area.
In one embodiment, green energy is to a green spectral integral area that should light, and blue energy is to a blue spectral integral area that should light.
In one embodiment, red energy is to a red spectral integral area that should light.
For reaching above-mentioned purpose, the manufacture method according to a kind of display device of the present invention, comprising: form a display panel; And make a green energy of light that this display panel sends in high gray and the ratio of a blue energy between 0.7 and 1.2, and on CIE 1931xy chromatic diagram corresponding to this light, blue color point coordinate (x, y) scope is between equation y=-168.72x 2+ 50.312x-3.635 and equation y=-168.72x 2between+63.81x-5.9174, and y is between 0.04 and 0.08.
From the above, in display device of the present invention and manufacture method thereof, the light that display panel sends, under the condition of high gray, a measured green energy of coloured light energy and the ratio of a blue energy is limited between 0.7 and 1.2, so, on CIE 1931 xy chromatic diagrams corresponding to this light, blue color point coordinate (x, y) scope is between equation y=-168.72x 2+ 50.312x-3.635 and equation y=-168.72x 2between+63.81x-5.9174, and y is between 0.04 and 0.08.The scope of above-mentioned color dot is to belong to preferably scope, and this gets a promotion the display quality of display device of the present invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an intensity spectrum of the light that sends of a kind of display panel of preferred embodiment of the present invention;
Fig. 2 is the schematic diagram of the CIE 1931 xy chromatic diagrams that the light that sends of the display panel of preferred embodiment of the present invention is corresponding;
Fig. 3 is that the display panel of preferred embodiment of the present invention is the schematic diagram of a display panels;
Fig. 4 is that the display panel of preferred embodiment of the present invention is the schematic diagram of a quantum dot display panel;
Fig. 5 is that the display panel of preferred embodiment of the present invention is the schematic diagram of an organic LED display panel; And
Fig. 6 is the process flow diagram of manufacture method of a kind of display device of preferred embodiment of the present invention.
Drawing reference numeral:
1,2,3: display panel
11: first substrate
12: second substrate
121: chromatic filter layer
13: liquid crystal layer
21,31: substrate
22: quantum dot light emitting layer
32: luminescent layer
33: filter layer
331: red filter area
332: green filter area
333: blue filter area
B: blue region
G: green district
R: red color area
S01, S02: the step of manufacture method
Embodiment
Hereinafter with reference to correlative type, a kind of display device and manufacture method thereof according to preferred embodiment of the present invention are described, wherein identical element is illustrated the reference marks with identical.
The present invention does not limit the kind of display device, and it can be for example liquid crystal indicator, quantum dot display device or organic LED display device.
In a preferred embodiment of the present invention, display device comprises a display panel, and display panel can be for example a display panels, a quantum dot display panel or an organic LED display panel.The light that display panel sends, the green energy of coloured light energy under the condition of high gray (take 8bit color range as 255 GTGs) and the ratio of a blue energy (green energy is with respect to blue energy Ratios) are between 0.7 and 1.2.Fig. 1 is the schematic diagram (its y axle intensity is arbitrary unit) of an intensity spectrum of the light that sends of display panel, and wherein intensity spectrum comprises a green glow frequency spectrum, a blue light frequency spectrum and a ruddiness frequency spectrum.This green glow frequency spectrum refers to the frequency spectrum of for example, when display panel only shows the picture of the high gray (255 GTGs) of green gained.This ruddiness frequency spectrum refers to the frequency spectrum of for example, when display panel only shows the picture of the high gray (255 GTGs) of redness gained.This blue light frequency spectrum refers to the frequency spectrum of for example, when display panel only shows the picture of the high gray (255 GTGs) of blueness gained.In this, green energy is a corresponding green spectral integral area (being green spectral area under a curve), and blue energy is a corresponding blue spectral integral area (being blue spectral area under a curve).In addition, when design requirement is when more approaching sRGB standard, preferably is that the ratio (green energy is with respect to blue energy Ratios) of green energy and blue energy is designed between 0.8 and 1.1, and the so blue and position of green color point on CIE coordinate can more approach the position of sRGB institute standard.
Fig. 2 is a CIE 1931xy chromatic diagram corresponding to light that the display panel of the present embodiment sends.On chromatic diagram, display panel emitted light for example, when under the condition of high gray (255 GTGs), measured coloured light energy meets aforementioned ratio scope, blue color point coordinate (x, the y) scope of the light that this display panel sends on chromatic diagram is between equation y=-168.72x 2+ 50.312x-3.635(equation A) with equation y=-168.72x 2+ 63.81x-5.9174(equation B) between, and wherein y, between 0.04 and 0.08, can promote display quality by this, maintains the color taste of display panel.
In addition, display panel emitted light for example, when under the condition of high gray (255 GTGs), measured coloured light energy meets aforementioned ratio scope, green color point coordinate (x, the y) scope of the light that this display panel sends on chromatic diagram is between equation y=-48.85x 2+ 22.964x-2.0014(equation C) with equation y=-48.85x 2+ 26.872x-2.9981(equation D) between, and wherein y between 0.58 and 0.64.In addition, the color saturation of the coloured light color gamut that also visual Demand Design presents is higher, solid color performance is comparatively bright-coloured, that is NTSC is more than or equal to the situation of 80% high colour gamut, now the y coordinate range of green color point is preferably between 0.64 and 0.7.
Shown in Fig. 1, for example, under the condition of high gray (255 GTGs) measured red energy of coloured light energy and the ratio of blue energy (red energy is with respect to blue energy Ratios) of the light that display panel sends can be designed between 0.49 and 0.75.In this, red energy is the red spectral integral area shown in corresponding diagram 1 (being red spectral area under a curve).In addition, when design requirement is when more approaching sRGB standard, preferably is that the ratio (red energy is with respect to blue energy Ratios) of red energy and blue energy is designed between 0.5 and 0.7, and the so blue and position of red color point on CIE coordinate can more approach the position of sRGB institute standard.
Based on above-mentioned design, please refer to shown in Fig. 2, display panel emitted light for example, under the condition of high gray (255 GTGs) measured coloured light energy when meeting aforementioned ratio scope, red color point coordinate (x, the y) scope of the light that this display panel sends on chromatic diagram is between equation y=-2.021x 2+ 2.1871x-0.2218(equation E) with equation y=-2.021x 2+ 2.1871x-0.2618(equation F) between, and wherein x between 0.62 and 0.66.Can promote by this display quality and color taste.In addition, in NTSC is more than or equal to 80% high colour gamut application, the x coordinate range of red color point is better can be between 0.66 and 0.68.Its green energy is with respect to the ratio of blue energy and red energy can be distinguished with respect to the design conditions of the ratio of blue energy or set up simultaneously.
In the present invention, display panel can have multiple variation aspect, below illustrates some enforcement aspects of display panel.
Fig. 3 is that the display panel 1 of preferred embodiment of the present invention is the schematic diagram of a display panels.Display panel 1 comprises a first substrate 11, a second substrate 12 and a liquid crystal layer 13.First substrate example 11 is thin film transistor base plate in this way, and second substrate 12 is for example colored optical filtering substrates, and liquid crystal layer 13 is arranged between first substrate 11 and second substrate 12.First substrate 11 can be used glass substrate, transparent acrylic substrate or flexible base plate with second substrate 12, or uses touch-control (Touch) substrate.In this aspect, second substrate 12 comprises a chromatic filter layer 121, and it comprises a blue filter unit, a green filter unit and a red filter unit.When the emitted blue filter unit of light penetration of the backlight module of liquid crystal indicator, can form the blue energy of the light of display panel 1, and can be presented by the blue light frequency spectrum of light; When the emitted green filter unit of light penetration of the backlight module of liquid crystal indicator, can form the green energy of the light of display panel 1, and can be presented by the green glow frequency spectrum of light; When the emitted red filter unit of light penetration of the backlight module of liquid crystal indicator, can form the red energy of the light of display panel 1, and can be presented by the ruddiness frequency spectrum of light.
The indigo plant of display panel, account form green, red light energy are:
Blue light energy B = ∫ 380 780 BLU ( λ ) * BCF ( λ ) * CELL ( λ ) dλ ,
Green energy G = ∫ 380 780 BLU ( λ ) * GCF ( λ ) * CELL ( λ ) dλ ,
Ruddiness energy R = ∫ 380 780 BLU ( λ ) * RCF ( λ ) * CELL ( λ ) dλ .
BLU(λ wherein) represent the energy distribution frequency spectrum of backlight; What BCF(λ) represent blue filter unit penetrates frequency spectrum, GCF(λ) represent green filter unit penetrate frequency spectrum, RCF(λ) represent the frequency spectrum that penetrates of red filter unit; CELL(λ) represent that the liquid crystal after display panel deduction chromatic filter layer (CF) penetrates frequency spectrum, λ is wavelength, and 380 and 780 refer to the wavelength coverage of calculating this integration, and the blue light of its integration gained, green glow, ruddiness energy unit are light watt.As from the foregoing, can change backlight BLU(λ by indivedual designs), the filter unit CF(λ of each color) or liquid crystal penetrate frequency spectrum CELL(λ) or the difference of collocation mutually, adjust the energy variation of each color.
Because energy is can be by design filter unit CF(λ) penetrate frequency spectrum adjustment, so can for example, by adjusting the material category (R254 of filter unit, R177, G7, G36, G58, Y150, Y138, Y139, B15:6 etc.) and weight percent recently adjust energy variation, that for example designs blue color filter layer penetrates spectrum peak between between 440nm to 470nm, green filter layer penetrate spectrum peak between between 500nm to 550nm, and adjust the green energy of display panel when high gray with respect to the ratio of blue light energy between 0.7 to 1.2, make the blue color point coordinate (x of blue color point on CIE1931 xy chromatic diagram, y) scope is between equation y=-168.72x 2+ 50.312x-3.635(equation A) with equation y=-168.72x 2+ 63.81x-5.9174(equation B) between, and wherein y between 0.04 and 0.08, also making green color point coordinate (x, y) scope is between equation y=-48.85x 2+ 22.964x-2.0014(equation C) with equation y=-48.85x 2+ 26.872x-2.9981(equation D) between, and wherein y between 0.58 and 0.64.
When design requirement is when more approaching sRGB standard, green energy is preferably between 0.8 to 1.1 with respect to the ratio of blue light energy.The color saturation of the coloured light color gamut that also visual Demand Design presents is higher, solid color performance is comparatively bright-coloured, that is NTSC is more than or equal to the situation of 80% high colour gamut, in meeting the ratio range of green energy with respect to blue light energy, now the y coordinate range of green color point is preferably between 0.64 and 0.7.
And the ratio of red energy and blue energy can be adjusted into equally between 0.49 and 0.75, making red color point coordinate (x, y) scope is between equation y=-2.021x 2+ 2.1871x-0.2218(equation E) with equation y=-2.021x 2+ 2.1871x-0.2618(equation F) between, and wherein x between 0.62 and 0.66.And when design requirement is when more approaching sRGB standard, preferably is that the ratio of adjusting red energy and blue energy is designed between 0.5 and 0.7.In high colour gamut application, the x coordinate range of red color point is better can be between 0.66 and 0.68.
Also can be by design backlight BLU(λ) adjust energy proportion.For example, when backlight is the red kind with green emitting phosphor of blue led collocation, its backlight has a frequency spectrum, by changing material category or its percentage by weight of fluorescent powder, or the electric current of change input backlight, the peak value of design blue light is roughly between between 440nm to 470nm, and the peak value of the radiation spectra of green emitting phosphor is roughly between 500nm to 550nm, and the peak value of the radiation spectra of red fluorescence powder is roughly between 600nm to 660nm; Or, for example, when backlight is blue led collocation yellow fluorescent powder, also can be by changing material category or its percentage by weight of fluorescent powder, or the electric current of change input backlight, the peak value of its blue light waveform is roughly between between 440nm to 470nm, the peak value of the radiation spectra of yellow fluorescent powder is roughly between 550nm to 570nm, to adjust ruddiness energy under the high gray of each color and the ratio of blue light energy, makes it in chromaticity coordinate, be positioned at above-mentioned scope of design.The ratio of green energy and blue light energy is adjusted as the same, in this, repeats no more.
In addition, the liquid crystal that also can design different colours pixel penetrates frequency spectrum CELL(λ) or the mutual collocation of above-mentioned condition adjust energy proportion, it is met in above-mentioned scope of design, in this, repeat no more.
Display panel 1 of the present invention also can be applied other technologies and have different variation aspects, for example chromatic filter layer can be arranged to a side (the color filter on array of thin film transistor (TFT) array, COA) or by thin film transistor (TFT) array be arranged at (TFT on CF is also called TOC or array on CF) on colored optical filtering substrates.First substrate 11 and a second substrate 12 also can be used transparent acrylic substrate or flexible base plate.Its blue energy and green energy or blue energy and red energy can design according to aforesaid condition, make color dot be positioned at certain limit in CIE1931 chromaticity coordinate, in this, repeat no more.
Fig. 5 is that the display panel 3 of preferred embodiment of the present invention is the schematic diagram of a kind of Organic Light Emitting Diode (OLED) display panel.Display panel 3 comprises a substrate 31, a luminescent layer 32 and a filter layer 33, and luminescent layer 32 sends white light, and filter layer 33 has a plurality of red filter areas 331, a plurality of green filter area 332 and a plurality of blue filter area 333.Substrate 31 can use glass substrate, transparent acrylic substrate or flexible base plate with offside substrate (not shown), or uses touch base plate, or uses diaphragm to cover.In this aspect, when the white light of luminescent layer 32 penetrates red filter area 331, can form the red energy of the light of display panel 3, it can be presented by the ruddiness frequency spectrum of light; When the white light of luminescent layer 32 penetrates green filter area 332, can form the green energy of the light of display panel 3, it can be presented by the green glow frequency spectrum of light; When the white light of luminescent layer 32 penetrates blue filter area 333, can form the blue energy of the light of display panel 3, it can be presented by the blue light frequency spectrum of light.Wherein this ruddiness frequency spectrum refers to the frequency spectrum of for example, when display panel only shows the picture of the high gray (255 GTGs) of redness gained.This green glow frequency spectrum refers to the frequency spectrum of for example, when display panel 3 only shows the picture of the high gray (255 GTGs) of green gained.This blue light frequency spectrum refers to the frequency spectrum of for example, when display panel only shows the picture of the high gray (255 GTGs) of blueness gained.
In this embodiment, the energy change of its each color, can be by the design of filter layer or the design of luminescent layer or its collocation, adjust green energy with respect to blue energy or red energy with respect to the ratio of blue energy, make it in above-mentioned scope of design.For example, can design the material category (R254 for example of filter layer, R177, G7, G36, G58, Y150, Y138, Y139, B15:6 etc.) or its percentage by weight, that designs blue color filter layer penetrates spectrum peak between between 440nm to 470nm, green filter layer penetrate spectrum peak between between 500nm to 550nm, and adjust display panel when the high gray of each color, make green energy with respect to blue light energy ratio between 0.7 to 1.2, so that the blue color point coordinate (x of blue color point on CIE1931xy chromatic diagram, y) scope is between equation y=-168.72x 2+ 50.312x-3.635(equation A) with equation y=-168.72x 2+ 63.81x-5.9174(equation B) between, and wherein y between 0.04 and 0.08, and green color point coordinate (x, y) scope is between equation y=-48.85x 2+ 22.964x-2.0014(equation C) with equation y=-48.85x 2+ 26.872x-2.9981(equation D) between, and wherein y between 0.58 and 0.64.Green energy is preferably between 0.8 to 1.1 with respect to blue light energy ratio.The color saturation of the coloured light color gamut that also visual Demand Design presents is higher, solid color performance is comparatively bright-coloured, that is NTSC is more than or equal to the situation of 80% high colour gamut, in meet aforementioned green energy with respect to blue light energy ratio within the scope of, now the y scope of green color point is preferably between 0.64 and 0.7.
Or for example can design material or its percentage by weight of luminescent layer, or adjust its input luminescent layer curent change, the intensity spectrum that makes its luminescent layer in blue light part peak value between between 440nm to 470nm, green glow part peak value is between between 500nm to 550nm, red light portion peak value is between between 600nm to 660nm, and adjust red energy with respect to the ratio of blue energy between 0.49 and 0.75, making red color point coordinate (x, y) scope is between equation y=-2.021x 2+ 2.1871x-0.2218(equation E) with equation y=-2.021x 2+ 2.1871x-0.2618(equation F) between, and wherein x between 0.62 and 0.66.Blue color point, in above-mentioned scope of design, repeats no more in this.When design requirement is when more approaching sRGB standard, preferably is red energy with respect to the ratio of blue energy between 0.5 and 0.7.In high colour gamut application, the x scope of red color point is better can be between 0.66 and 0.68.
In blueness, green, during red each self luminous Organic Light Emitting Diode (OLED) display panel embodiment (not shown), also can design the material or its percentage by weight or the input luminescent layer curent change etc. that change colour light emitting layer out of the ordinary, the luminous intensity frequency spectrum that makes luminescent layer in blue light part peak value between between 440nm to 470nm, green glow part peak value is between between 500nm to 550nm, red light portion peak value is between between 600nm to 660nm, and adjust green energy with respect to blue energy or red energy the ratio range with respect to blue energy, its color point coordinates on chromatic diagram can be designed according to aforesaid condition, therefore repeat no more in this.
Fig. 4 is that the display panel 2 of preferred embodiment of the present invention is the schematic diagram of a quantum dot (Quantum Dot) display panel.Display panel 2 comprises a substrate 21 and a quantum dot light emitting layer 22, and quantum dot light emitting layer 22 has a plurality of red color area R, a plurality of green district G and a plurality of blue region B, and described these colored blocks are that interval arranges.Display panel has more a pair of side group plate (not shown), and substrate 21 can use glass substrate, transparent acrylic substrate or flexible base plate with offside substrate, or uses touch base plate, or uses diaphragm to cover.In this aspect, when the light sending via red color area R can form the red energy of the light of display panel 2, and can be presented by the ruddiness frequency spectrum of light; The light that green district G sends can form the green energy of the light of display panel 2, and can be presented by the green glow frequency spectrum of light; The light that blue region B sends can form the blue energy of the light of display panel 2, and can be presented by the blue light frequency spectrum of light.Wherein this ruddiness frequency spectrum refers to the frequency spectrum of for example, when display panel only shows the picture of the high gray (255 GTGs) of redness gained.This green glow frequency spectrum refers to the frequency spectrum of for example, when display panel 2 only shows the picture of the high gray (255 GTGs) of green gained.This blue light frequency spectrum refers to the frequency spectrum of for example, when display panel only shows the picture of the high gray (255 GTGs) of blueness gained.
Can design material category or its percentage by weight of the quantum dot light emitting layer of color out of the ordinary, or change the electric current of inputting quantum dot light emitting layer, the intensity spectrum that makes quantum dot light emitting layer in blue light part peak value between between 440nm to 470nm, green glow part peak value is between between 500nm to 550nm, red light portion peak value is between between 600nm to 660nm, and adjust green energy with respect to blue energy or red energy with respect to the ratio range of blue energy and its color point coordinates on chromatic diagram can be designed according to aforesaid condition, in this, repeat no more.
Fig. 6 is the process flow diagram of manufacture method of a kind of display device of preferred embodiment of the present invention, and it comprises: form a display panel (step S01); And a green energy of adjusting the light that this display panel sends in high gray with respect to the ratio of a blue energy between 0.7 and 1.2, and make on CIE 1931xy chromatic diagram that this light is corresponding, blue color point coordinate (x, y) scope is between equation y=-168.72x 2+ 50.312x-3.635 and equation y=-168.72x 2between+63.81x-5.9174, and y (step S02) between 0.04 and 0.08.Display panel can be for example a display panels, a quantum dot display panel or an organic LED display panel.In high gray, green energy can be more between 0.8 and 1.1 with respect to the ratio of blue energy.In high gray, a red energy of this light can be between 0.49 and 0.75 with respect to the ratio of blue energy.In high gray, red energy can be more between 0.5 and 0.7 with respect to the ratio of blue energy.Because the other technologies feature of the manufacture method of the display device of the present embodiment describes in detail in above-described embodiment in the lump, therefore repeat no more in this.
In sum, in display device of the present invention and manufacture method thereof, the light that display panel sends, under the condition of high gray, a green energy of measured coloured light energy designs with respect to the ratio of a blue energy standard coordinate value that the chroma point that can make in the scope of design of above-mentioned color dot in chromaticity coordinate can approach sRGB with respect to the ratio of a blue energy or a red energy, and this gets a promotion the display quality of display device of the present invention.
The foregoing is only illustrative, but not be restricted.Anyly do not depart from spirit of the present invention and category, and the equivalent modifications that it is carried out or change all should be included in the protection domain of claim.

Claims (20)

1. a display device, is characterized in that, described display device comprises:
One display panel, the green energy of light that it sends in high gray and the ratio of a blue energy are between 0.7 and 1.2, and on CIE 1931 xy chromatic diagrams corresponding to described light, blue color point coordinate range is between equation y=-168.72x 2+ 50.312x-3.635 and equation y=-168.72x 2between+63.81x-5.9174, and y is between 0.04 and 0.08.
2. display device as claimed in claim 1, is characterized in that, green color point coordinate range is between equation y=-48.85x 2+ 22.964x-2.0014 and equation y=-48.85x 2between+26.872x-2.9981, and y is between 0.58 and 0.64.
3. display device as claimed in claim 1, is characterized in that, green color point coordinate range is between equation y=-48.85x 2+ 22.964x-2.0014 and equation y=-48.85x 2between+26.872x-2.9981, and y is between 0.64 and 0.7.
4. display device as claimed in claim 1, is characterized in that, in high gray, the ratio of described green energy and blue energy is more between 0.8 and 1.1.
5. display device as claimed in claim 1, is characterized in that, in high gray, a red energy of described light and the ratio of described blue energy are between 0.49 and 0.75.
6. display device as claimed in claim 5, is characterized in that, in high gray, the ratio of described red energy and described blue energy is more between 0.5 and 0.7.
7. display device as claimed in claim 5, is characterized in that, red color point coordinate range is between equation y=-2.021x 2+ 2.1871x-0.2218 and equation y=-2.021x 2between+2.1871x-0.2618, and x is between 0.62 and 0.66.
8. display device as claimed in claim 5, is characterized in that, red color point coordinate range is between equation y=-2.021x 2+ 2.1871x-0.2218 and equation y=-2.021x 2between+2.1871x-0.2618, and x is between 0.66 and 0.68.
9. display device as claimed in claim 1, is characterized in that, described display panel is a display panels.
10. display device as claimed in claim 1, is characterized in that, described display panel is a quantum dot display panel.
11. display device as claimed in claim 1, is characterized in that, described display panel is an organic LED display panel.
12. display device as claimed in claim 11, it is characterized in that, described organic LED display panel comprises a substrate and a luminescent layer, and described luminescent layer is arranged on substrate and has a plurality of red luminous zones, a plurality of green luminous zone and a plurality of blue luminous zone.
13. display device as claimed in claim 11, it is characterized in that, described organic LED display panel comprises a substrate, a luminescent layer and a filter layer, described luminescent layer is arranged on substrate and sends white light, and described filter layer is arranged on luminescent layer and has a plurality of red filter areas, a plurality of green filter area and a plurality of blue filter area.
14. display device as claimed in claim 1, is characterized in that, a green spectral integral area of the corresponding described light of described green energy, a blue spectral integral area of the corresponding described light of described blue energy.
15. display device as claimed in claim 5, is characterized in that, a red spectral integral area of the corresponding described light of described red energy.
The manufacture method of 16. 1 kinds of display device, is characterized in that, comprising:
Form a display panel; And
Make a green energy of light that described display panel sends in high gray and the ratio of a blue energy between 0.7 and 1.2, and on CIE 1931 xy chromatic diagrams corresponding to described light, blue color point coordinate range is between equation y=-168.72x 2+ 50.312x-3.635 and equation y=-168.72x 2between+63.81x-5.9174, and y is between 0.04 and 0.08.
The manufacture method of 17. display device as claimed in claim 16, is characterized in that, in high gray, the ratio of described green energy and blue energy is more between 0.8 and 1.1.
The manufacture method of 18. display device as claimed in claim 16, is characterized in that, in high gray, a red energy of described light and the ratio of described blue energy are between 0.49 and 0.75.
The manufacture method of 19. display device as claimed in claim 18, is characterized in that, in high gray, the ratio of described red energy and described blue energy is more between 0.5 and 0.7.
The manufacture method of 20. display device as claimed in claim 16, is characterized in that, described display panel is a display panels, a quantum dot display panel or an organic LED display panel.
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