CN105572956A - Liquid crystal display device - Google Patents

Liquid crystal display device Download PDF

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Publication number
CN105572956A
CN105572956A CN201610101679.2A CN201610101679A CN105572956A CN 105572956 A CN105572956 A CN 105572956A CN 201610101679 A CN201610101679 A CN 201610101679A CN 105572956 A CN105572956 A CN 105572956A
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CN
China
Prior art keywords
liquid crystal
substrate
display panel
frequency spectrum
light
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CN201610101679.2A
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Chinese (zh)
Inventor
叶政玮
黄士展
刘桂伶
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Innolux Shenzhen Co Ltd
Chi Mei Optoelectronics Corp
Innolux Corp
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Innolux Shenzhen Co Ltd
Chi Mei Optoelectronics Corp
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Publication of CN105572956A publication Critical patent/CN105572956A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133621—Illuminating devices providing coloured light

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

A liquid crystal display device comprises a display panel and a backlight module. The display panel comprises a colored filter layer provided with a blue filter portion, the backlight module emits a light ray to the display panel, and the peak wavelength of one blue light part of the frequency spectrum of the light ray is larger than or equal to 440 nm and smaller than or equal to 450 nm; the blue filter portion has a penetrating frequency spectrum, the wavelengths corresponding to the portions, on one half of the height value of the peak wavelength of the penetrating frequency spectrum, of the penetrating frequency spectrum are lambda<1> and lambda<2> respectively, and the relation between the lambda<1> and the lambda<2> accords with the the following equation (please see the equation in the description).

Description

Liquid crystal indicator
The application is the applying date is on 07 27th, 2012, and application number is 201210264064.3, and denomination of invention is the divisional application of the patented claim of " liquid crystal indicator ".
Technical field
The present invention about a kind of display device, especially in regard to a kind of liquid crystal indicator.
Background technology
Liquid crystal display (LiquidCrystalDisplay, LCD) device is low with its power consumption, thermal value is few, lightweight and low diathermaneity etc. advantage, be used in electronic product miscellaneous, and little by little replace traditional cathode-ray tube (CRT) (CathodeRayTube, CRT) display device.
Generally speaking, liquid crystal indicator mainly comprises a display panels (LCDPanel), a backlight module (BacklightModule) and a liquid crystal layer, and liquid crystal layer is arranged in display panels.Wherein, backlight module in order to send a light to display panels, and forms an image via each pixel display color of display panels.Wherein, each pixel energy display color mainly by display panels a chromatic filter layer caused by, and chromatic filter layer penetrate the scope that spectrum distribution can affect light x, y coordinate on a chromaticity diagram from display panels injection.
Therefore, that how to design chromatic filter layer penetrates spectrum distribution, makes to have preferably scope at chromatic diagram x, y coordinate from the light of display panel injection, and then 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 providing a kind of liquid crystal indicator that can make have at chromatic diagram x, y coordinate from the light of display panel injection preferred range.
For reaching above-mentioned purpose, comprise a display panel and a backlight module according to a kind of liquid crystal indicator of the present invention.Display panel has a chromatic filter layer, and chromatic filter layer has a blue filter portion, and blue filter portion has one and penetrates frequency spectrum.Backlight module launches a light to display panel, and the peak wavelength of a blue light components of the frequency spectrum of light is more than or equal to 440 nanometers (nm) and is less than or equal to 450 nanometers.The half penetrating the height value of the peak wavelength of frequency spectrum in described blue filter portion is corresponding is respectively λ 1 and λ 2 to the described wavelength penetrated on frequency spectrum, then described λ 1 meets following equation with λ 2 relation:
514 &le; &lambda; 1 2 + &lambda; 2 2 + 0.71862 &lambda; 2 - 0.71862 &lambda; 1 &le; 541.
For reaching above-mentioned purpose, comprise a display panel and a backlight module according to a kind of liquid crystal indicator of the present invention.Display panel has a chromatic filter layer, and chromatic filter layer has a blue filter portion, and blue filter portion has one and penetrates frequency spectrum.Backlight module launches a light to display panel, and the peak wavelength of a blue light components of the frequency spectrum of light is more than or equal to 450 nanometers and is less than or equal to 460 nanometers.The wavelength penetrated described in corresponding to the half penetrating the height value of the peak wavelength of frequency spectrum in described blue filter portion on frequency spectrum is respectively λ 1 and λ 2, then described λ 1 meets following equation with λ 2 relation:
506 &le; &lambda; 1 2 + &lambda; 2 2 + 0.75655 &lambda; 2 - 0.75655 &lambda; 1 &le; 546.
In one embodiment, display panel comprises a thin film transistor base plate, a colored optical filtering substrates and a liquid crystal layer, and liquid crystal layer is arranged between thin film transistor base plate and colored optical filtering substrates, and colored optical filtering substrates has chromatic filter layer.
In one embodiment, display panel comprises a first substrate, a second substrate and a liquid crystal layer, and liquid crystal layer is arranged between first substrate and second substrate, and first substrate has a thin film transistor (TFT) array and chromatic filter layer.
In one embodiment, display panel comprises a first substrate, a second substrate and a liquid crystal layer, liquid crystal layer is arranged between first substrate and second substrate, and first substrate has a thin film transistor (TFT) array and a black-matrix layer, and second substrate has chromatic filter layer.
In one embodiment, display panel comprises a first substrate, a second substrate and a liquid crystal layer, and liquid crystal layer is arranged between first substrate and second substrate, and first substrate has a thin film transistor (TFT) array, a black-matrix layer and chromatic filter layer.
In one embodiment, liquid crystal indicator more comprises a contact panel, and display panel is arranged between contact panel and backlight module.
In one embodiment, contact panel is pressure-sensitive, resistance-type, condenser type, infrared-type, ultrasonic type, electromagnetic type or optical imaging type contact panel.
In one embodiment, display panel comprises a touch detection circuit (touchsensingcircuit).Touch detection circuit is such as embedded optical profile type, embedded capacitive, embedded resistance-type or surface capacitance type touch detection circuit.Touch detection circuit can be multi-point touch sensing circuit.
In one embodiment, display panel more comprises the first substrate and a second substrate that are oppositely arranged, and touch detection circuit is between first substrate and second substrate.
In one embodiment, the scope being positioned at x coordinate CIE1931xy chromatic diagram from the blue light components of light of display panel injection is the scope of 0.15 ± 0.015, y coordinate is 0.06 ± 0.015.
In one embodiment, backlight module is straight-down negative or side light type back light module.
In one embodiment, the light source of backlight module comprises a cold-cathode fluorescence lamp, a light emitting diode, an Organic Light Emitting Diode or quantum dot backlight.
In one embodiment, the active layers of a thin film transistor (TFT) of display panel comprises amorphous silicon, polysilicon or indium oxide gallium zinc (IndiumGalliumZincOxide, IGZO).
In one embodiment, backlight module comprises red light-emitting diode, green light LED and blue light-emitting diode, more can comprise Yellow light emitting diode.
In one embodiment, backlight module comprises ultraviolet light-emitting diodes and red fluorescent powder, green fluorescence powder and blue phosphor.
In one embodiment, backlight module comprises blue light-emitting diode and yellow fluorescent powder.Wherein, yellow fluorescent powder makes a general reference this look fluorescent powder of various composition, such as, have YAG, the materials such as BOSE, LuYAG, Nitride, Silicate.
In one embodiment, backlight module comprises blue light-emitting diode and yellow fluorescent powder and red fluorescence powder.
In one embodiment, backlight module comprises blue light-emitting diode and green emitting phosphor and red fluorescence powder.
From the above, the frequency spectrum of the corresponding light emitted by backlight module in the blue filter portion of the chromatic filter layer of display panels of the present invention and designing, wherein this blue filter portion has one and penetrates frequency spectrum, when the peak wavelength of a blue light components of the light frequency spectrum that backlight module is launched is more than or equal to 440 nanometers and is less than or equal to 450 nanometer, the corresponding wavelength that this penetrates on frequency spectrum of the half penetrating the height value of the peak wavelength of frequency spectrum in blue filter portion is respectively λ 1 and λ 2, then this λ 1 meets following equation with λ 2 relation:
514 &le; &lambda; 1 2 + &lambda; 2 2 + 0.71862 &lambda; 2 - 0.71862 &lambda; 1 &le; 541.
When the peak wavelength of a blue light components of the light frequency spectrum that backlight module is launched is more than or equal to 450 nanometers and is less than or equal to 460 nanometer, the corresponding wavelength that this penetrates on frequency spectrum of the half penetrating the height value of the peak wavelength of frequency spectrum in blue filter portion is respectively λ 1 and λ 2, then this λ 1 meets following equation with λ 2 relation:
506 &le; &lambda; 1 2 + &lambda; 2 2 + 0.75655 &lambda; 2 - 0.75655 &lambda; 1 &le; 546.
Above designs, and the scope that the blue light components of the light penetrated from display panel can be made to be positioned at x coordinate CIE1931xy chromatic diagram is the scope of 0.15 ± 0.015, y coordinate is 0.06 ± 0.015, also can maintain good blue light colourity.In addition, above design also can make blue filter portion maintain preferably light penetration rate.In addition, the present invention can increase the range of application of light source, regardless of which kind of light source, as long as the peak wavelength of a blue light components of the light frequency spectrum of backlight module is more than or equal to 440 nanometers and is less than or equal to 450 nanometers or is more than or equal to 450 nanometers and is less than or equal to 460 nanometers, technology of the present invention can be applied to promote display quality and product competitiveness.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of liquid crystal indicator of present pre-ferred embodiments;
Fig. 2 be the frequency spectrum of the light of the backlight module of present pre-ferred embodiments and blue filter portion penetrate spectrum diagram;
Fig. 3 is the scope of the coordinate of irradiant blue light components on CIE1931xy chromatic diagram of the liquid crystal indicator of present pre-ferred embodiments;
The peak wavelength of the blue light components of the frequency spectrum of the light that the backlight module that Fig. 4 is present pre-ferred embodiments sends is more than or equal to 440 nanometers and under being less than or equal to the aspect of 450 nanometers, the blue filter portion that different light source design produces penetrates λ in spectrum value 2-λ 1with relation schematic diagram;
The peak wavelength of the blue light components of the frequency spectrum of the light that the backlight module that Fig. 5 is present pre-ferred embodiments sends is more than or equal to 450 nanometers and under being less than or equal to the aspect of 460 nanometers, the blue filter portion that different light source design produces penetrates λ in spectrum value 2-λ 1with relation schematic diagram; And
Fig. 6 to Figure 12 is the schematic diagram that the display panel of present pre-ferred embodiments has different aspect.
drawing reference numeral
1,1a: liquid crystal indicator
2,4,6,7,8: display panel
3: backlight module
41,51,51a, 61,81: first substrate
411,422,513,613,622: glass substrate
412,511,511a, 611: thin film transistor (TFT) array
413,518,614: protective seam
414,517,517a, 615: pixel electrode layer
415,516,516a, 616: gate insulator
42,62,82: second substrate
421,512,512a, 621: chromatic filter layer
4211,5121,6211: blue filter portion
423,514,612: black-matrix layer
424,623: passivation layer
425,624: common electrode layer
43,63: liquid crystal layer
515: cushion
519: isolation layer
I p, I h: height value
TC, TC1: touch detection circuit
TP: contact panel
W p, W fP: peak wavelength
λ 1, λ 2: wavelength
Embodiment
Hereinafter with reference to correlative type, a kind of liquid crystal indicator according to present pre-ferred embodiments is described, wherein identical element is illustrated with identical reference marks.
Fig. 1 is the schematic diagram of a kind of liquid crystal indicator 1 of present pre-ferred embodiments, and liquid crystal indicator 1 comprises display panel 2 and a backlight module 3.Display panel 2 has a chromatic filter layer, and chromatic filter layer has a blue filter portion.Generally speaking, display panel 2 comprises the first substrate and a second substrate and a liquid crystal layer that are oppositely arranged, first substrate is such as thin film transistor base plate, second substrate is such as colored optical filtering substrates, liquid crystal layer is arranged between first substrate and second substrate, in the case, chromatic filter layer is positioned at colored optical filtering substrates, and comprises a blue filter portion, a red filter portion and a green filter portion.But, display panel 2 of the present invention also can be applied other technologies and have different change aspects, such as chromatic filter layer and blue filter portion thereof can be arranged at the side (colorfilteronarray of thin film transistor (TFT) array, COA) or by thin film transistor (TFT) array be arranged at (TFTonCF is also called TOC or arrayonCF) on colored optical filtering substrates.
Backlight module 3 launches a light to display panel 2.The present embodiment does not limit the kind of backlight module 3, and it can be such as straight-down negative or side light type back light module.And the light source of backlight module 3 can be such as cold-cathode fluorescence lamp (CCFL), light emitting diode (LED), Organic Light Emitting Diode (OLED) or quantum dot (QuantumDot) backlight.In this, backlight module 3 is for light emitting diode as light source, and backlight module 3 comprises at least one light emitting diode (can be crystal grain or packaging body), and the light that backlight module 3 sends is white light.There is multiple enforcement aspect that backlight module 3 can be allowed to send white light.Such as, the light sent by red, green, blue light-emitting diode carries out mixed light can obtain white light, does not limit the light mixng proportion of red, green, blue light emitting diode in this, even can add Yellow light emitting diode and carry out mixed light.Or, utilize ultraviolet light (UV) light emitting diode to be equipped with red, green, blue fluorescent powder, produce white light by ultraviolet excitation light-emitting phosphor colour mixture.Or, add that yellow (making a general reference this look fluorescent powder of various composition) fluorescent powder is to produce white light with blue light-emitting diode.Wherein, yellow fluorescent powder is such as the fluorophor that yttrium aluminum garnet (Ce3+:YAG) is main yellow, but is not limited thereto.In addition, blue light-emitting diode also can coordinate yellow with red fluorescence powder or coordinate red and green emitting phosphor.In addition, above-mentioned yttrium also can such as be replaced by terbium or gadolinium, and aluminium can be replaced by gallium.When backlight module 3 is for quantum dot (QuantumDot) backlight, such as, by ultraviolet light (UV) or blue-light excited structure or the diaphragm comprising quanta point material, and then white light can be produced, but be not limited thereto.
Fig. 2 is the schematic diagram penetrating frequency spectrum in the frequency spectrum of the light of backlight module 3 and the blue filter portion of chromatic filter layer.In Fig. 2, the frequency spectrum of the light of backlight module 3 is with reference to left Y-axis (backlight intensity value), and blue filter portion is with reference to right Y-axis (blue filter portion penetration value), and will be understood that penetrance is a relative value.Please refer to shown in Fig. 2, the peak wavelength W of a blue light components of the frequency spectrum of the light sent when backlight module 3 pwhen being more than or equal to 440 nanometers and being less than or equal to 450 nanometer, one of blue filter portion penetrates frequency spectrum and has a peak wavelength W fP, peak wavelength W fPthere is a height value I p, this height value I phalf I hcorresponding to blue filter portion to penetrate on frequency spectrum and have two wavelength, is respectively λ 1 and λ 2 (λ 2> λ 1), then wavelength X 1 and λ 2 relation meet following equation:
514 &le; &lambda; 1 2 + &lambda; 2 2 + 0.71862 &lambda; 2 - 0.71862 &lambda; 1 &le; 541.
In addition, with the aspect shown in Fig. 2 similar be, when the peak wavelength of a blue light components of the frequency spectrum of the light of backlight module 3 is more than or equal to 450 nanometers and is less than or equal to 460 nanometers, the corresponding wavelength penetrated to this on frequency spectrum of the half penetrating the height value of the peak wavelength of frequency spectrum in blue filter portion is respectively λ 1 and λ 2 (λ 2> λ 1), then this λ 1 meets following equation with λ 2 relation:
506 &le; &lambda; 1 2 + &lambda; 2 2 + 0.75655 &lambda; 2 - 0.75655 &lambda; 1 &le; 546.
Under above-mentioned design, good blue light colourity can be reached, as shown in Figure 3, after light penetrates from display panel 2, the blue light components x coordinate range be positioned on CIE1931xy chromatic diagram of light is 0.15 ± 0.015, y coordinate range is 0.06 ± 0.015, can promote display quality by this.
In addition, under above-mentioned design, blue filter portion more can be made to have preferably light penetration rate.In this, penetrance is defined as: the amount of light of the amount of light/backlight module 3 of display panel 2.The peak wavelength that Fig. 4 is the blue light components of the frequency spectrum of light sent when backlight module 3 is more than or equal to 440 nanometers and under being less than or equal to the aspect of 450 nanometers, the schematic diagram of the light penetration rate that different light source design produces, wherein X-axis is λ 2-λ 1numerical value, Y-axis is numerical value.As shown in Figure 4, the light source design that illustration 6 kinds is different here, wherein B represents blue light-emitting diode, and Y represents YAG fluorescent powder, and R represents red fluorescence powder, and G represents green emitting phosphor.The person of should be noted, the closer to &lambda; 1 2 + &lambda; 2 2 + 0.71862 &lambda; 2 - 0.71862 &lambda; 1 = 541 The penetrance corresponding to point of this line is promoted more.Be understandable that, light source type is not limited thereto.
In addition, the peak wavelength that Fig. 5 is the blue light components of the frequency spectrum of light sent when backlight module 3 is more than or equal to 450 nanometers and under being less than or equal to the aspect of 460 nanometers, the schematic diagram of the light penetration rate that different light source design produces.Similar with Fig. 4, also enumerate 6 kinds of different light source design here, wherein, the closer to &lambda; 1 2 + &lambda; 2 2 + 0.75655 &lambda; 2 - 0.75655 &lambda; 1 = 546 The penetrance corresponding to point of this line is promoted more.
The person of should be noted, when the peak wavelength of the blue light components of the frequency spectrum of the light that backlight module 3 sends equals 450 nanometer, the design in above-mentioned two kinds of blue filter portions is all applicable.
In the present invention, chromatic filter layer and blue filter portion thereof can be arranged at first substrate or the second substrate of display panel, below illustrate some enforcement aspects of display panel.
Please refer to shown in Fig. 6, a display panel 4 comprises first substrate 41, second substrate 42 and a liquid crystal layer 43, and liquid crystal layer 43 is arranged between first substrate 41 and second substrate 42.Second substrate 42 has a chromatic filter layer 421, and chromatic filter layer 421 has a blue filter portion 4211.Certainly, chromatic filter layer 421 more can have a red filter portion and a green filter portion.In addition, colored optical filtering substrates 42 more can comprise glass substrate 422, black-matrix layer (blackmatrix, BM) 423, passivation layer (passivation) 424 and a community electrode layer 425.In other embodiments, common electrode layer 425 can be patterning or has the electrode pattern of trench design.First substrate 41 can comprise glass substrate 411, thin film transistor (TFT) array 412, protective seam 413, pixel electrode layer 414 and a gate insulator 415.Wherein, thin film transistor (TFT) array 412 comprises multiple thin film transistor (TFT), each thin film transistor (TFT) comprises a grid, one source pole and a drain electrode, and the active layers of thin film transistor (TFT) such as can comprise amorphous silicon, polysilicon or indium oxide gallium zinc (IndiumGalliumZincOxide, IGZO), when aspect for indium oxide gallium zinc, an etching preventing layer (not shown) can be had on the channel layer of thin film transistor (TFT).In addition, first substrate 41 more comprises one first polarizer (not shown), and second substrate 42 more comprises one second polarizer (not shown), and described polarizer can be such as polarization plates or polarizing coating.
Please refer to shown in Fig. 7, a display panel comprises a first substrate, a second substrate and a liquid crystal layer, and liquid crystal layer is arranged between first substrate and second substrate, and Fig. 7 only shows first substrate 51 (can be upper substrate or infrabasal plate).First substrate 51 has thin film transistor (TFT) array 511 and a chromatic filter layer 512, and chromatic filter layer 512 has a blue filter portion 5121, certainly more can comprise a red filter portion and a green filter portion.In addition, first substrate 51 more can comprise glass substrate 513, black-matrix layer 514, cushion 515, gate insulator 516 and a pixel electrode layer 517.Chromatic filter layer and thin film transistor (TFT) are arranged on same substrate by this aspect, can be such as side (colorfilteronarray chromatic filter layer being arranged at thin film transistor (TFT) array, COA) (TFTonCF on colored optical filtering substrates or by thin film transistor (TFT) array is arranged at, also TOC or arrayonCF is called), in this for the latter.The aperture opening ratio of thin film transistor (TFT) can be promoted by this, and effectively can promote the brightness of display panel.
In addition, please refer to shown in Fig. 8, chromatic filter layer is arranged at the side (colorfilteronarray, COA) of thin film transistor (TFT) array by its display.One display panel comprises a first substrate, a second substrate and a liquid crystal layer, and liquid crystal layer is arranged between first substrate and second substrate, and Fig. 8 only shows first substrate 51a (for infrabasal plate).First substrate 51a has a thin film transistor (TFT) array 511a and a chromatic filter layer 512a, chromatic filter layer 512a have a blue filter portion 5121, certainly more can comprise a red filter portion and a green filter portion.Thin film transistor (TFT) array 511a and chromatic filter layer 512a is arranged on a glass substrate 513.In addition, first substrate 51a more comprises a gate insulator 516a, a pixel electrode layer 517a, a protective seam 518 and an isolation layer (cappinglayer) 519.Pixel electrode layer 517a is electrically connected with thin film transistor (TFT) array 511a.
Please refer to shown in Fig. 9, a display panel 6 comprises first substrate 61, second substrate 62 and a liquid crystal layer 63, and liquid crystal layer 63 is arranged between first substrate 61 and second substrate 62.First substrate 61 has thin film transistor (TFT) array 611 and a black-matrix layer 612, and second substrate 62 has a chromatic filter layer 621, and chromatic filter layer 621 has a blue filter portion 6211, certainly more can comprise a red filter portion and a green filter portion.In addition, first substrate 61 more can comprise glass substrate 613, protective seam 614, pixel electrode layer 615 and a gate insulator 616.Second substrate 62 more can comprise glass substrate 622, passivation layer 623 and a community electrode layer 624.In other embodiments, common electrode layer 624 can have different patterns or trench design.This aspect is the side (BMonarray) black-matrix layer (BM) being arranged at thin film transistor (TFT) array, and then guarantees the aligning accuracy of thin film transistor (TFT) array and black-matrix layer.
Please refer to shown in Figure 10, a liquid crystal indicator 1a more comprises a contact panel TP, and it is external hanging touch panel, and its setting position makes display panel 2 between contact panel TP and backlight module 3.Display panel 2 also can be replaced by the display panel of arbitrary enforcement aspect above.The present invention does not limit contact panel TP kind, and it can be such as pressure-sensitive, resistance-type, condenser type, infrared-type, ultrasonic type, electromagnetic type or optical imaging type contact panel.
Touch control manner of the present invention can comprise a touch detection circuit (touchsensingcircuit).This aspect application embedded (In-CellorOn-Cell) touch technology, it is such as embedded optical profile type (In-CellPhoto), embedded capacitive (In-CellCapacitive), embedded resistance-type (In-CellResistive) and surface capacitance type (On-CellCapacitive).In addition, touch detection circuit can be multi-point touch (multi-touch) circuit for detecting.
Please refer to shown in Figure 11, a display panel 7 comprises touch detection circuit (touchsensingcircuit) TC.This embodiment is to apply embedded (On-Cell) touch technology.Please refer to shown in Figure 12, a display panel 8 comprises touch detection circuit (touchsensingcircuit) TC1.This aspect is for embedded (In-Cell) touch technology.One display panel 8 more comprises first substrate 81 and the second substrate 82 be oppositely arranged, touch detection circuit TC1 is between first substrate 81 and second substrate 82, and first substrate 81 or second substrate 82 can be arranged at, in this to be arranged at second substrate 82.
In sum, the frequency spectrum of the corresponding light emitted by backlight module in the blue filter portion of the chromatic filter layer of display panels of the present invention and designing, when the peak wavelength of a blue light components of the light frequency spectrum that backlight module is launched is more than or equal to 440 nanometers and is less than or equal to 450 nanometer, the corresponding wavelength penetrated to this on frequency spectrum of the half penetrating the height value of the peak wavelength of frequency spectrum in blue filter portion is respectively λ 1 and λ 2 (λ 2> λ 1), then this λ 1 meets following equation with λ 2 relation:
514 &le; &lambda; 1 2 + &lambda; 2 2 + 0.71862 &lambda; 2 - 0.71862 &lambda; 1 &le; 541.
When the peak wavelength of a blue light components of the light frequency spectrum that backlight module is launched is more than or equal to 450 nanometers and is less than or equal to 460 nanometer, the corresponding wavelength penetrated to this on frequency spectrum of the half penetrating the height value of the peak wavelength of frequency spectrum in blue filter portion is respectively λ 1 and λ 2 (λ 2> λ 1), then this λ 1 meets following equation with λ 2 relation:
506 &le; &lambda; 1 2 + &lambda; 2 2 + 0.75655 &lambda; 2 - 0.75655 &lambda; 1 &le; 546.
Above designs, and the scope that the blue light components of the light penetrated from display panel can be made to be positioned at x coordinate CIE1931xy chromatic diagram is the scope of 0.15 ± 0.015, y coordinate is 0.06 ± 0.015, also can maintain good blue light colourity.In addition, above design also can make blue filter portion maintain preferably light penetration rate.In addition, the present invention can increase the range of application of light source, regardless of which kind of light source, as long as the peak wavelength of a blue light components of the light frequency spectrum of backlight module is more than or equal to 440 nanometers and is less than or equal to 450 nanometers or is more than or equal to 450 nanometers and is less than or equal to 460 nanometers, technology of the present invention can be applied to promote display quality and product competitiveness.
The foregoing is only illustrative, but not be restricted person.Anyly do not depart from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be contained in claim.

Claims (20)

1. a liquid crystal indicator, is characterized in that, described liquid crystal indicator comprises:
One display panel, has a chromatic filter layer, and described chromatic filter layer has a blue filter portion; And
One backlight module, launch a light to described display panel, the peak wavelength of a blue light components of the frequency spectrum of described light is more than or equal to 440nm and is less than or equal to 450nm;
Wherein said blue filter portion has one and penetrates frequency spectrum, described in penetrate the half of the height value of the peak wavelength of frequency spectrum corresponding described in penetrate frequency spectrum wavelength be respectively λ 1 and λ 2, then described λ 1 meets following equation with λ 2 relation:
514 n m &le; &lambda; 1 2 + &lambda; 2 2 + 0.71862 &lambda; 2 - 0.71862 &lambda; 1 &le; 541 n m ,
Wherein the unit of λ 1 and λ 2 is nm.
2. a liquid crystal indicator, is characterized in that, described liquid crystal indicator comprises:
One display panel, has a chromatic filter layer, and described chromatic filter layer has a blue filter portion; And
One backlight module, launch a light to described display panel, the peak wavelength of a blue light components of the frequency spectrum of described light is more than or equal to 450nm and is less than or equal to 460nm;
Wherein said blue filter portion has one and penetrates frequency spectrum, described in penetrate the half of the height value of the peak wavelength of frequency spectrum corresponding described in penetrate frequency spectrum wavelength be respectively λ 1 and λ 2, then described λ 1 meets following equation with λ 2 relation:
506 n m &le; &lambda; 1 2 + &lambda; 2 2 + 0.75655 &lambda; 2 - 0.75655 &lambda; 1 &le; 546 n m ,
Wherein the unit of λ 1 and λ 2 is nm.
3. liquid crystal indicator as claimed in claim 1 or 2, it is characterized in that, described display panel comprises a first substrate, a second substrate and a liquid crystal layer, described liquid crystal layer is arranged between described first substrate and described second substrate, described first substrate has a thin film transistor (TFT) array and described chromatic filter layer, and the active layers of a thin film transistor (TFT) of described display panel comprises amorphous silicon, polysilicon or indium oxide gallium zinc.
4. liquid crystal indicator as claimed in claim 1 or 2, it is characterized in that, described display panel comprises a first substrate, a second substrate and a liquid crystal layer, described liquid crystal layer is arranged between described first substrate and described second substrate, described first substrate has a thin film transistor (TFT) array, a black-matrix layer and described chromatic filter layer, and the active layers of a thin film transistor (TFT) of described display panel comprises amorphous silicon, polysilicon or indium oxide gallium zinc.
5. liquid crystal indicator as claimed in claim 4, is characterized in that, described black-matrix layer overlaps with described thin film transistor (TFT).
6. liquid crystal indicator as claimed in claim 5, it is characterized in that, described black-matrix layer can be arranged in a via of described thin film transistor (TFT).
7. liquid crystal indicator as claimed in claim 1 or 2, it is characterized in that, described liquid crystal indicator also comprises:
One contact panel, described display panel is arranged between described contact panel and described backlight module.
8. liquid crystal indicator as claimed in claim 1 or 2, it is characterized in that, described display panel comprises a touch detection circuit, and described touch detection circuit is embedded optical profile type, embedded capacitive, embedded resistance-type or surface capacitance type touch detection circuit.
9. liquid crystal indicator as claimed in claim 1 or 2, is characterized in that, the scope that the blue light components of the light penetrated from described display panel is positioned at x coordinate CIE1931xy chromatic diagram is the scope of 0.15 ± 0.015, y coordinate is 0.06 ± 0.015.
10. liquid crystal indicator as claimed in claim 1 or 2, it is characterized in that, described backlight module is straight-down negative or side light type back light module.
11. 1 kinds of liquid crystal indicators, is characterized in that, described liquid crystal indicator comprises:
One display panel, has a chromatic filter layer, and described chromatic filter layer has a blue filter portion; And
One backlight module, launch a light to described display panel, the wavelength of one first peak value of a blue light components of the frequency spectrum of described light is more than or equal to 440nm and is less than or equal to 450nm;
Wherein said blue filter portion has one and penetrates frequency spectrum, the wavelength penetrating frequency spectrum described in corresponding to the described half penetrating the height value of the peak-peak wavelength of frequency spectrum is respectively λ 1 and λ 2, and λ 1 is less than λ 2, wherein, the frequency spectrum of described light has one second peak value, the wavelength of described second peak value is greater than λ 2 and is less than 600nm, and the frequency spectrum that the intensity of described second peak value is greater than described light is being more than or equal to 600nm and is being less than or equal to the intensity between 780nm, and
Then described λ 1 meets following equation with λ 2 relation:
514 n m &le; &lambda; 1 2 + &lambda; 2 2 + 0.71862 &lambda; 2 - 0.71862 &lambda; 1 &le; 541 n m ,
Wherein the unit of λ 1 and λ 2 is nm.
12. 1 kinds of liquid crystal indicators, is characterized in that, described liquid crystal indicator comprises:
One display panel, has a chromatic filter layer, and described chromatic filter layer has a blue filter portion; And
One backlight module, launch a light to described display panel, the wavelength of one first peak value of a blue light components of the frequency spectrum of described light is more than or equal to 450nm and is less than or equal to 460nm;
Wherein said blue filter portion has one and penetrates frequency spectrum, the wavelength penetrating frequency spectrum described in corresponding to the described half penetrating the height value of the peak-peak wavelength of frequency spectrum is respectively λ 1 and λ 2, and λ 1 is less than λ 2, wherein, the frequency spectrum of described light has one second peak value, the wavelength of described second peak value is greater than λ 2 and is less than 600nm, and the frequency spectrum that the intensity of described second peak value is greater than described light is being more than or equal to 600nm and is being less than or equal to the intensity between 780nm, and
Described λ 1 meets following equation with λ 2 relation:
506 n m &le; &lambda; 1 2 + &lambda; 2 2 + 0.75655 &lambda; 2 - 0.75655 &lambda; 1 &le; 546 n m ,
Wherein the unit of λ 1 and λ 2 is nm.
13. liquid crystal indicators as described in claim 11 or 12, it is characterized in that, described display panel comprises a first substrate, a second substrate and a liquid crystal layer, described liquid crystal layer is arranged between described first substrate and described second substrate, described first substrate has a thin film transistor (TFT) array and described chromatic filter layer, and the active layers of a thin film transistor (TFT) of described display panel comprises amorphous silicon, polysilicon or indium oxide gallium zinc.
14. liquid crystal indicators as described in claim 11 or 12, it is characterized in that, described display panel comprises a first substrate, a second substrate and a liquid crystal layer, described liquid crystal layer is arranged between described first substrate and described second substrate, described first substrate has a thin film transistor (TFT) array, a black-matrix layer and described chromatic filter layer, and the active layers of a thin film transistor (TFT) of described display panel comprises amorphous silicon, polysilicon or indium oxide gallium zinc.
15. liquid crystal indicators as claimed in claim 14, is characterized in that, described black-matrix layer overlaps with described thin film transistor (TFT), and described black-matrix layer can be arranged in a via of described thin film transistor (TFT).
16. liquid crystal indicators as claimed in claim 15, it is characterized in that, described black-matrix layer can be arranged in a via of described thin film transistor (TFT).
17. liquid crystal indicators as described in claim 11 or 12, it is characterized in that, described liquid crystal indicator also comprises:
One contact panel, described display panel is arranged between described contact panel and described backlight module.
18. liquid crystal indicators as described in claim 11 or 12, it is characterized in that, described display panel comprises a touch detection circuit, and described touch detection circuit is embedded optical profile type, embedded capacitive, embedded resistance-type or surface capacitance type touch detection circuit.
19. liquid crystal indicators as described in claim 11 or 12, is characterized in that, the scope that the blue light components of the light penetrated from described display panel is positioned at x coordinate CIE1931xy chromatic diagram is the scope of 0.15 ± 0.015, y coordinate is 0.06 ± 0.015.
20. liquid crystal indicators as described in claim 11 or 12, it is characterized in that, described backlight module is straight-down negative or side light type back light module.
CN201610101679.2A 2012-07-27 2012-07-27 Liquid crystal display device Pending CN105572956A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107121837A (en) * 2017-06-12 2017-09-01 武汉华星光电技术有限公司 A kind of backlight module and liquid crystal display device
CN112965292A (en) * 2017-01-25 2021-06-15 群创光电股份有限公司 Display device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016212348A (en) * 2015-05-13 2016-12-15 株式会社 オルタステクノロジー Liquid crystal display
JP6638408B2 (en) * 2016-01-12 2020-01-29 大日本印刷株式会社 High color rendering liquid crystal display device and color filter
CN105892145B (en) * 2016-04-05 2020-07-03 武汉华星光电技术有限公司 Display and display module thereof
CN105652546A (en) * 2016-04-12 2016-06-08 深圳市华星光电技术有限公司 Array substrate and liquid crystal display panel
CN108333833B (en) * 2018-03-08 2020-08-14 海信视像科技股份有限公司 Color film substrate and manufacturing method thereof, display panel and display device
CN112991922B (en) * 2019-12-16 2023-06-13 群创光电股份有限公司 Display device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080186433A1 (en) * 2004-07-15 2008-08-07 Shuichi Haga Color Filter and Color Liquid Crystal Display Apparatus
US20090115714A1 (en) * 2007-11-07 2009-05-07 Hee-Seong Jeong Liquid crystal display
CN101738783A (en) * 2010-01-18 2010-06-16 友达光电股份有限公司 Display equipment for improving white color offset and manufacturing method thereof
CN102565906A (en) * 2011-11-17 2012-07-11 友达光电股份有限公司 Color Filter And Liquid Crystal Display

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101403831B (en) * 2008-11-18 2010-08-18 友达光电股份有限公司 Display apparatus and its method for regulating color resistance of color filter
CN101943820B (en) * 2010-08-20 2012-10-10 友达光电股份有限公司 Liquid crystal display and blue color filter
TWI435168B (en) * 2011-04-28 2014-04-21 Au Optronics Corp Blue photoresist and color filter substrate and display device using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080186433A1 (en) * 2004-07-15 2008-08-07 Shuichi Haga Color Filter and Color Liquid Crystal Display Apparatus
US20090115714A1 (en) * 2007-11-07 2009-05-07 Hee-Seong Jeong Liquid crystal display
CN101738783A (en) * 2010-01-18 2010-06-16 友达光电股份有限公司 Display equipment for improving white color offset and manufacturing method thereof
CN102565906A (en) * 2011-11-17 2012-07-11 友达光电股份有限公司 Color Filter And Liquid Crystal Display

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112965292A (en) * 2017-01-25 2021-06-15 群创光电股份有限公司 Display device
CN112965292B (en) * 2017-01-25 2022-12-09 群创光电股份有限公司 Display device
CN107121837A (en) * 2017-06-12 2017-09-01 武汉华星光电技术有限公司 A kind of backlight module and liquid crystal display device
CN107121837B (en) * 2017-06-12 2020-01-03 武汉华星光电技术有限公司 Backlight module and liquid crystal display device

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Application publication date: 20160511