WO2019019560A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2019019560A1
WO2019019560A1 PCT/CN2018/071458 CN2018071458W WO2019019560A1 WO 2019019560 A1 WO2019019560 A1 WO 2019019560A1 CN 2018071458 W CN2018071458 W CN 2018071458W WO 2019019560 A1 WO2019019560 A1 WO 2019019560A1
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WIPO (PCT)
Prior art keywords
pixel region
region
light
sub
filter
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Ceased
Application number
PCT/CN2018/071458
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English (en)
French (fr)
Inventor
陈黎暄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US15/750,180 priority Critical patent/US10451919B2/en
Publication of WO2019019560A1 publication Critical patent/WO2019019560A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

Definitions

  • the present application relates to the field of liquid crystal display technology, and in particular, to a display panel and a display device.
  • Quantum Dots are spherical semiconductor nanoparticles composed of II-VI or III-V elements with a particle size generally ranging from a few nanometers to tens of nanometers.
  • the quantum dot material has a small half-height width and a luminescent color can be easily adjusted by the size, structure or composition of the quantum dot material, and can be effectively applied to a display device to effectively improve the color saturation of the display device. Color gamut.
  • the quantum dot material can absorb the short-wave blue light and excite the long-wavelength light color. This feature causes the blue light emitted by the blue backlight to be projected into the quantum dot material to show red, green and other colors.
  • the existing quantum dot color filter layer can be divided into a blue pixel region, a red pixel region, and a green pixel region. The red pixel area and the green pixel area are filled with a quantum dot material, which allows the user to receive red or green light at various angles, and the blue pixel area is usually transparent because of the need to transmit through the blue light source. The material is not even filled, which can cause problems in the blue pixel area.
  • an object of the present application is to provide a display panel and a display device to reduce the problem of visual character deviation occurring in a blue pixel region.
  • the present application provides a display panel including a backlight, a color filter layer, and a blue filter film which are sequentially stacked, and the backlight is used to emit blue light.
  • the color filter layer includes a blue pixel region for transmitting blue light
  • the blue pixel region includes a first sub-pixel region and a second sub-pixel region
  • the blue filter film is used for the blue filter film
  • the blue filter film has a first filter region and a second filter region, the first filter region is disposed opposite to the first sub-pixel region, and the second filter is The light emitted by the backlight passes through the first sub-pixel region and the first filter region to form a first light, and the light emitted by the backlight is transparent.
  • a second light is formed, and the light intensity of the first light is different from the light intensity of the second light.
  • the thickness of the first filter region is different from the thickness of the second filter region.
  • the ratio of the area of the first sub-pixel region to the area of the second sub-pixel region is 1:4 to 4:1.
  • the color filter layer further includes a light shielding region disposed between the first sub-pixel region and the second sub-pixel region.
  • the display panel further includes a first data line and a second data line, the first sub-pixel area is electrically connected to the first data line, and the second sub-pixel area is electrically connected to the second data a line, the first data line and the second data line output different data signals.
  • the color filter layer further includes a red pixel region and a green pixel region, and the red pixel region, the green pixel region, and the blue pixel region are arranged at intervals, and the red pixel region is used for Red light is emitted under excitation of blue light, and the green pixel region is used to emit green light under excitation of blue light, and a gap between the red pixel region, the green pixel region and the blue pixel region is also provided with light shielding. Zone for shading.
  • the blue light filter film further includes a third filter region, and the third filter region is opposite to the red pixel region and the green pixel region.
  • the thickness of the third filter region is different from the thickness of the first filter region and the thickness of the second filter region.
  • the red pixel region is provided with a first quantum dot material
  • the first quantum dot material is used to emit red light under excitation of blue light
  • the green pixel region is provided with a second quantum dot material
  • the second The quantum dot material is used to emit green light under excitation of blue light
  • the first sub-pixel region and the second sub-pixel region are provided with a light transmissive material for transmitting blue light.
  • the present application further provides a display device including a display panel including a backlight, a color filter layer, and a blue filter film, which are sequentially stacked, and the backlight is used to emit blue light.
  • the color filter layer includes a blue pixel region for transmitting blue light
  • the blue pixel region includes a first sub-pixel region and a second sub-pixel region
  • the blue filter a film for attenuating the intensity of blue light
  • the blue filter film having a first filter region and a second filter region, the first filter region being disposed opposite to the first sub-pixel region
  • the second The filter region is disposed opposite to the second sub-pixel region, and the light emitted by the backlight passes through the first sub-pixel region and the first filter region to form a first light, and the backlight emits After the light passes through the second sub-pixel region and the second filter region, a second light is formed, and the light intensity of the first light is different from the light intensity of the second light.
  • the display panel provided by the present application has at least the following beneficial effects:
  • a display panel provided by the present application includes a backlight, a color filter layer and a blue filter film, wherein the blue pixels of the color filter layer are divided into a first sub-pixel region and a second sub-pixel region, and the blue filter A first filter region on the light film is opposite to the first sub-pixel region, and a second filter region on the blue filter film is opposite to the second sub-pixel region.
  • the light emitted by the backlight passes through the color filter layer and the blue filter film in turn. Since the blue pixel region is divided into two or more sub-pixel regions, the blue filter film is divided into two or more filters.
  • the light region, and the filter region of the blue filter film corresponds to the sub-pixel region, by adjusting each sub-pixel region to connect different data signals, or by adjusting the area ratio of each sub-pixel region, or the thickness of each filter region Comparing, the illuminating intensity of the light passing through the first sub-pixel region may be different from the illuminating intensity of the light passing through the second sub-pixel region, such that each sub-pixel region of the blue pixel region produces a different display. Brightness and squint brightness, which reduces the problem of Blu-ray view character bias in the blue pixel area.
  • the blue filter film can attenuate the intensity of the blue pixel region, thereby reducing the damage of the blue light to the user's eyes.
  • FIG. 1 is a schematic partial cross-sectional structural view of a display panel according to an embodiment of the present application.
  • FIG. 2 is a schematic partial cross-sectional structural view of a display panel according to an embodiment of the present application.
  • FIG. 3 is a schematic partial cross-sectional structural view of a display panel according to an embodiment of the present application.
  • FIG. 4 is a partial cross-sectional structural view of a display panel according to an embodiment of the present application.
  • FIG. 1 is a partial schematic view of a display panel 100 according to an embodiment of the present application.
  • the embodiment of the present application provides a display panel 100.
  • the display panel 100 includes a backlight 110, a color filter layer 120, and a blue filter film 130.
  • the backlight 110 is for emitting blue light a
  • the color filter layer 120 includes a blue pixel region 121 for transmitting blue light a.
  • the blue pixel region 121 includes a first sub-pixel region 122 and a second sub-pixel region 123.
  • the blue filter film 130 serves to attenuate the intensity of the blue light a, and the blue filter film 130 has a first filter region 131 and a second filter region 132.
  • the first filter region 131 is disposed opposite to the first sub-pixel region 122, and the second filter region 132 is disposed opposite to the second sub-pixel region 123.
  • the light ray a emitted by the backlight 110 passes through the first sub-pixel region 122 and the first filter region 131 to form a first light ray b, and the light ray a emitted by the backlight 110 passes through the second light
  • the sub-pixel region 123 and the second filter region 132 form a second light ray c, and the illuminating intensity of the first ray b is different from the illuminating intensity of the second ray c. That is, the display brightness of the first sub-pixel region 122 is different from the display brightness of the second sub-pixel region 123.
  • the blue pixel region 121 may also be divided into three or more sub-pixel regions. Accordingly, the blue filter film 130 is divided into three or more filter regions. Each of the sub-pixel regions is opposed to a different filter region to adjust the display luminance of the blue pixel region 121 and to improve the visual color shift problem of the blue pixel region 121.
  • the color filter layer 120 further includes a green pixel region 124 and a red pixel region 125.
  • the red pixel region 125, the green pixel region 124, and the blue pixel region 121 are arranged at intervals.
  • the red pixel region 125 is for emitting red light e under excitation of the blue light a.
  • the green pixel region 124 is for emitting green light d under excitation of the blue light a.
  • a gap between the red pixel region 125, the green pixel region 124, and the blue pixel region 121 is further provided with a light shielding region 126.
  • the light shielding region 126 may be chrome metal, acryl resin or black resin or the like for light shielding, which may also be referred to as a black matrix. It can be understood that the color filter layer is formed by an array of a plurality of green pixel regions 124, red pixel regions 125, and blue pixel regions 121 alternately arranged to display color.
  • the green pixel region 124 is filled with a first quantum dot material
  • the red pixel region 125 is filled with a second quantum dot material.
  • the first quantum dot material is excited by the blue light a to cause the green pixel region 124 to emit green light.
  • the second quantum dot material is excited by the blue light a to cause the red pixel region 125 to emit red light e. Since the quantum dot material is photoluminescence, the viewing angle of the light can be improved, so that the green pixel region 124 and the red pixel region 125 do not have a problem of viewing angle deviation.
  • the first sub-pixel region 122 and the second sub-pixel region 123 may be provided with a light transmissive material, and the light transmissive material is used for Through the blue light a. It is also possible that the first sub-pixel region 122 and the second sub-pixel region 123 are not provided with a substance.
  • the blue pixel region 121 When the blue light a emitted by the backlight 110 passes through the blue pixel region 121, since the blue pixel region 121 has no quantum dot material, if the blue light a emitted by the blue pixel region 121 cannot change the light angle and the blue light intensity, The blue pixel area 121 of the display panel 100 may be visually biased; and the intensity of the blue light may be large, which may cause damage to the user's eyes.
  • the blue pixel region 121 of the color filter layer 120 is divided into a first sub-pixel region 122 and a second sub-pixel region 123, and the first filter region 131 on the blue filter film 130 and the first A sub-pixel region 122 is opposed to the second filter region 132 on the blue filter film 130 opposite to the second sub-pixel region 123.
  • the light emitted by the backlight 110 sequentially passes through the color filter layer 120 and the blue filter film 130. Since the blue pixel region 121 is divided into two or more sub-pixel regions, the blue filter film 130 is divided into two.
  • the filter region of the blue filter film 130 corresponds to the sub-pixel region, by adjusting each sub-pixel region to connect different data signals, or by adjusting the area ratio of each sub-pixel region, or The thickness ratio of each of the filter regions may be such that the intensity of the light passing through the first sub-pixel region 122 is different from the intensity of the light passing through the second sub-pixel region 123, such that the blue pixel region 121
  • Each of the sub-pixel regions produces different display brightness and squint brightness, thereby reducing the problem of blue-view character bias in the blue pixel region 121.
  • the blue filter film 130 can attenuate the intensity of the blue pixel region 121, thereby reducing the damage of the blue light to the user's eyes.
  • the first method can be adjusted by some technical means.
  • Display brightness at the sub-pixel region 122 and at the second sub-pixel region 123 are connected to different data signals, or by adjusting an area ratio of two sub-pixel regions, or a thickness ratio of two filter regions, etc. .
  • the specific description is made by the following examples, which include but are not limited to the following examples.
  • the display brightness at the first sub-pixel area 122 of the present application means that the first sub-pixel area 122 corresponds to the brightness displayed by the display panel 100, and the display brightness at the second sub-pixel area 123 refers to the first pixel area. Corresponding to the brightness displayed by the display panel 100.
  • the blue filter film 130 is used to weaken the intensity of the emitted blue light, so that the blue light at a certain brightness is not easily transmitted, and the brightness of the blue light above a certain brightness is weakened after being transmitted.
  • the thickness h1 of the first filter region 131 and the thickness h2 of the second filter region 132 the brightness of the blue light weakened by the first filter region 131 and the second filter are adjusted.
  • the brightness of the blue light weakened by the light region 132 is different, so that the display brightness at the first sub-pixel region 122 and the display brightness at the second sub-pixel region 123 are different, thereby reducing the problem of the blue pixel region 121 Blu-ray view character bias.
  • the materials of the first filter region 131 and the second filter region 132 may be the same, and the blue filter film 130 may be patterned, thereby reducing process difficulty and Save manpower and material resources.
  • the material of the blue filter film 130 is not limited in the present application.
  • the first sub-pixel region 122 and the second sub-pixel region 123 are not provided with a substance.
  • the first filter region 131 and the second filter region 132 can be respectively inserted into the first sub-pixel region 122 and the second sub-pixel region 123, so that the overall thickness of the display panel 100 can be reduced, and the thickness of the display panel 100 can be promoted. Development.
  • the display brightness at the first sub-pixel region 122 and the second sub-pixel region 123 are The display brightness is different, thereby reducing the problem of the blue pixel area 121 Blu-ray view role bias.
  • a ratio of an area of the first sub-pixel region 122 to an area of the second sub-pixel region 123 is 1:4 to 4:1.
  • the area of the sub-pixel region of the blue pixel region 121 is too large, the luminance of the blue light transmitted through the sub-pixel region is too large, and the effect of weakening the blue light is weak.
  • the area of the sub-pixel region of the blue pixel region 121 is too small, the brightness of the blue light transmitted through the sub-pixel region is too large, which affects the display quality of the display panel 100.
  • the light shielding region 126 is disposed between the first sub-pixel region 122 and the second sub-pixel region 123 for spacing the first sub-pixel region 122 and the The second sub-pixel area 123.
  • the light shielding region 126 can block blue light, thereby weakening the intensity of blue light.
  • the display panel 100 further includes a first data line and a second data line (not shown).
  • the first sub-pixel region 122 is electrically connected to the first data line
  • the second sub-pixel region 123 is electrically connected to the second data line
  • the first data line and the second data line are output Different data signals.
  • the first sub-pixel region 122 and the second sub-pixel region 123 input different data signals, so that the first sub-pixel region 122 and the second sub-pixel region 123 have different gray levels, thereby
  • the display brightness at the first sub-pixel region 122 and the display brightness at the second sub-pixel region 123 are made different, thereby reducing the problem of the blue pixel region 121 Blu-ray view character bias.
  • the technical means of the first embodiment, the second embodiment, and the third embodiment described above may be used in combination, that is, according to the area ratio of the first sub-pixel region 122 and the second sub-pixel region 123.
  • the thickness of the first filter region 131 and the second filter region 132 is adjusted, or the first sub-pixel region 122 and the second sub-pixel region 123 are performed according to the thicknesses of the first filter region 131 and the second filter region 132.
  • the blue light filter film 130 further includes a third filter region 133 , the third filter region 133 and the red pixel region 125 and the green pixel region 124 . relatively.
  • the thickness h3 of the third filter region 133 is different from the thickness h1 of the first filter region 131 and the thickness h2 of the second filter region 132 to transmit different blue light luminances.
  • the light-emitting layer of the color filter layer 120 is made of a quantum dot material, that is, the color filter layer 120 is a quantum dot color filter layer 120.
  • the first quantum dot material and the second quantum dot material may be selected from the group consisting of II-VI or III-V quantum dot materials.
  • These semiconductor quantum dots all follow the quantum size effect, the energy level changes according to the size change of the quantum dots, and the properties also change with the size of the quantum dots. For example, the intensity of the absorption and emission changes with the size, so it can be changed by Size to control the emission intensity.
  • By controlling the size of the quantum dots it is possible to excite monochromatic red light having an emission intensity of 630 to 720 nm, monochromatic green light having an emission intensity of 500 to 560 nm, and the like.
  • the color filter layer 120 can be used in combination with the blue backlight, so that the red pixel region 125 and the green pixel region 124 of the color filter layer 120 are respectively provided with red.
  • the green pattern is excited by blue light, and the red and green patterns respectively excite red and green light, and the blue light emitted by the backlight 110 is blue through the blue pixel region 121, thereby realizing red, green, and blue.
  • Three primary colors are displayed.
  • a thin film transistor layer 140 , a liquid crystal layer 150 , a transparent conductive film layer 160 , a polarizing layer 170 , and a flat layer 180 are sequentially disposed between the color filter layer 120 and the backlight 110 .
  • the thin film transistor layer 140 is disposed adjacent to the backlight 110.
  • the liquid crystal layer 150 has liquid crystal molecules 151.
  • the display panel 100 further includes a substrate 190 disposed on a side of the blue filter film 130 away from the color filter layer 120.
  • the polarizing layer 170 may be disposed between the liquid crystal layer 150 and the color filter layer 120 because the mechanism of color generation of the quantum dot material lies in photoluminescence, which may cause polarization of the display panel 100. The light transmission is affected. Therefore, the polarizing layer 170 on the side of the color filter layer 120 is placed between the color filter layer 120 and the liquid crystal layer 150, so that the polarized light is partially polarized after passing through the color filter layer 120. Thereby affecting the results of the display.
  • the transparent conductive film layer 160 is made of a metal oxide such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium antimony zinc oxide, or other suitable oxide, or Is the stack layer of at least two of the above.
  • a metal oxide such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium antimony zinc oxide, or other suitable oxide, or Is the stack layer of at least two of the above.
  • the flat layer 180 covers the color filter layer 120. Since the quantum dot material is sensitive to water oxygen, a planarization layer 180 is required between the polarizing layer 170 and the color filter layer 120 to encapsulate the quantum dot material to prevent oxidation of the quantum dot material.
  • the material of the flat layer 180 comprises an inorganic material (for example: silicon oxide, silicon nitride, silicon oxynitride, other suitable materials, or a stack layer of at least two materials mentioned above), an organic material (for example: polyester (PET) ), polyenes, polypropionyls, polycarbonates, polyalkylene oxides, polyphenylenes, polyethers, polyketones, polyalcohols, polyaldehydes, or other suitable materials, or Combination), or other suitable material, or a combination of the above.
  • an inorganic material for example: silicon oxide, silicon nitride, silicon oxynitride, other suitable materials, or a stack layer of at least two materials mentioned above
  • an organic material for example: polyester (PET)
  • PET polyester
  • polyenes for example: polypropionyls
  • polycarbonates for example: polyalkylene oxides, polyphenylenes, polyethers, polyketones, polyalcohols, polyalde
  • the embodiment of the present application further provides a display device, including the display panel 100 according to any of the above embodiments.
  • the display device may be an electronic device having a display panel 100, such as a liquid crystal television, a mobile phone, a personal digital assistant (PDA), a digital camera, a computer screen, or a notebook computer screen.
  • PDA personal digital assistant
  • the display device provided by the present application causes the sub-pixel regions of the blue pixel region 121 to generate different display brightness and squint brightness, thereby reducing the problem of the blue pixel region 121 Blu-ray view role deviation, and improving the display quality of the display device.
  • the blue filter film 130 can attenuate the intensity of the blue pixel region 121, thereby reducing the damage of the blue light to the user's eyes.

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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)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种显示面板(100)，包括依次层叠设置的背光源(110)、彩色滤光层(120)及蓝色滤光膜(130)。彩色滤光层(120)包括蓝色像素区(121)，蓝色像素区(121)包括第一子像素区(122)和第二子像素区(123)，蓝色滤光膜(130)具有第一滤光区(131)和第二滤光区(132)，第一滤光区(131)与第一子像素区(122)相对设置，第二滤光区(132)与第二子像素区(123)相对设置。背光源(110)发射的光线透过第一子像素区(122)和第一滤光区(131)后形成第一光线(b)，背光源(110)发射的光线透过第二子像素区(123)和第二滤光区(132)后形成第二光线(c)，第一光线(b)的发光强度与第二光线(c)的发光强度不同。还提供了一种移动终端。

Description

显示面板及显示装置
本申请要求于2017年07月24日提交中国专利局、申请号为201710606503.7、申请名称为“显示面板及显示装置”的中国专利申请的优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本申请涉及液晶显示技术领域，具体涉及一种显示面板及显示装置。
背景技术
液晶显示器的色彩是依靠彩色滤光片(CF，color filter)来实现的。然而，传统的彩色滤光片存在对光线的利用率不佳，透过率低下，且传统色阻材料的透射峰较宽，色浓度受限，难以实现广色域的缺点，已不能满足用户对显示画质的要求。量子点(Quantum Dots，QDs)是一种由II-VI或III-V族元素组成的球形半导体纳米微粒，粒径一般在几纳米至数十纳米之间。量子点材料由于其发光峰具有较小的半高宽且发光颜色可通过量子点材料的尺寸、结构或成分进行简易调节，将其应用在显示装置中可有效地提升显示装置的色饱和度与色域。
量子点材料可以吸收短波的蓝光，激发呈现出长波段光色，这一特性使得蓝色背光源发出的蓝光投射至量子点材料后显现出红、绿等颜色。现有的量子点彩色滤光层可以划分为蓝色像素区、红色像素区及绿色像素区。其中，红色像素区及绿色像素区填充有量子点材料，该量子点材料使得用户在各个角度均可以接收到红光或绿光，而蓝色像素区由于需要透过蓝色光源，通常填充透明材料甚至不填充，这样会导致蓝色像素区出现视角色偏的问题。
发明内容
针对以上的问题，本申请的目的是提供一种显示面板及显示装置，以减小蓝色像素区出现的视角色偏的问题。
为了解决背景技术中存在的问题，一方面，本申请提供了一种显示面板， 包括依次层叠设置的背光源、彩色滤光层及蓝色滤光膜，所述背光源用于发射蓝光，所述彩色滤光层包括蓝色像素区，所述蓝色像素区用于透过蓝光，所述蓝色像素区包括第一子像素区和第二子像素区，所述蓝色滤光膜用于削弱蓝光的强度，所述蓝色滤光膜具有第一滤光区和第二滤光区，所述第一滤光区与所述第一子像素区相对设置，所述第二滤光区与所述第二子像素区相对设置，所述背光源发射的光线透过所述第一子像素区和所述第一滤光区后形成第一光线，所述背光源发射的光线透过所述第二子像素区和所述第二滤光区后形成第二光线，所述第一光线的发光强度与所述第二光线的发光强度不同。
其中，所述第一滤光区的厚度与所述第二滤光区的厚度不同。
其中，所述第一子像素区的面积与所述第二子像素区的面积之比为1:4～4:1。
其中，所述彩色滤光层还包括遮光区，所述遮光区设于所述第一子像素区和所述第二子像素区之间。
其中，所述显示面板还包括第一数据线和第二数据线，所述第一子像素区电连接于所述第一数据线，所述第二子像素区电连接于所述第二数据线，所述第一数据线与所述第二数据线输出不同的数据信号。
其中，所述彩色滤光层还包括红色像素区及绿色像素区，所述红色像素区、所述绿色像素区及所述蓝色像素区两两相间隔排列，所述红色像素区用于在蓝光的激发下发出红光，所述绿色像素区用于在蓝光的激发下发出绿光，所述红色像素区、所述绿色像素区及所述蓝色像素区之间的间隙还设有遮光区，用于遮光。
其中，所述蓝光滤光膜还包括第三滤光区，所述第三滤光区与所述红色像素区及所述绿色像素区相对。
其中，所述第三滤光区的厚度与所述第一滤光区的厚度及所述第二滤光区的厚度不同。
其中，所述红色像素区设有第一量子点材料，所述第一量子点材料用于在蓝光的激发下发出红光，所述绿色像素区设有第二量子点材料，所述第二量子点材料用于在蓝光的激发下发出绿光，所述第一子像素区及所述第二子像素区设有透光材料，所述透光材料用于透过蓝光。
在另一方面，本申请还提供了一种显示装置，包括显示面板，所述显示面板包括依次层叠设置的背光源、彩色滤光层及蓝色滤光膜，所述背光源用于发射蓝光，所述彩色滤光层包括蓝色像素区，所述蓝色像素区用于透过蓝光，所述蓝色像素区包括第一子像素区和第二子像素区，所述蓝色滤光膜用于削弱蓝光的强度，所述蓝色滤光膜具有第一滤光区和第二滤光区，所述第一滤光区与所述第一子像素区相对设置，所述第二滤光区与所述第二子像素区相对设置，所述背光源发射的光线透过所述第一子像素区和所述第一滤光区后形成第一光线，所述背光源发射的光线透过所述第二子像素区和所述第二滤光区后形成第二光线，所述第一光线的发光强度与所述第二光线的发光强度不同。
相较于现有技术，本申请提供的一种显示面板，至少具有以下的有益效果：
本申请提供的一种显示面板，包括背光源、彩色滤光层和蓝色滤光膜，该彩色滤光层的蓝色像素区分为第一子像素区和第二子像素区，蓝色滤光膜上的第一滤光区与所述第一子像素区相对，蓝色滤光膜上的第二滤光区与所述第二子像素区相对。背光源发射的光线依次穿过彩色滤光层和蓝色滤光膜，由于蓝色像素区划分为两个或两个以上子像素区，蓝色滤光膜划分为两个或两个以上滤光区，且蓝色滤光膜的滤光区与子像素区相对应，通过调节各个子像素区连接不同的数据信号，或通过调节各个子像素区的面积比，或者各个滤光区的厚度比，可以使得穿过所述第一子像素区后的光线的发光强度与穿过第二子像素区后的光线的发光强度不同，这样使得蓝色像素区的各个子像素区产生不同的显示亮度和斜视亮度，从而减少蓝色像素区蓝光视角色偏的问题。此外，所述蓝色滤光膜可以减弱蓝色像素区的强度，从而减少蓝光对用户眼睛的损伤。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的一种显示面板局部截面结构示意图。
图2是本申请实施例提供的一种显示面板局部截面结构示意图。
图3是本申请实施例提供的一种显示面板局部截面结构示意图。
图4是本申请实施例提供的一种显示面板局部截面结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例的技术方案进行清楚、完整地描述。
请参阅图1，图1是本申请实施例提供的显示面板100的局部示意图。本申请实施例提供了一种显示面板100。所述显示面板100包括背光源110、彩色滤光层120及蓝色滤光膜130。所述背光源110用于发射蓝光a，所述彩色滤光层120包括蓝色像素区121，所述蓝色像素区121用于透过蓝光a。所述蓝色像素区121包括第一子像素区122和第二子像素区123。所述蓝色滤光膜130用于削弱蓝光a的强度，所述蓝色滤光膜130具有第一滤光区131和第二滤光区132。所述第一滤光区131与所述第一子像素区122相对设置，所述第二滤光区132与所述第二子像素区123相对设置。所述背光源110发射的光线a透过所述第一子像素区122和所述第一滤光区131后形成第一光线b，所述背光源110发射的光线a透过所述第二子像素区123和所述第二滤光区132后形成第二光线c，所述第一光线b的发光强度与所述第二光线c的发光强度不同。也就是说所述第一子像素区122的显示亮度与所述第二子像素区123的显示亮度不同。
可选的，所述蓝色像素区121还可以分为三个或三个以上的子像素区域。相应地，蓝色滤光膜130分为三个或三个以上的滤光区。每个子像素区均与不同的滤光区相对，以调节蓝色像素区121的显示亮度和改善蓝色像素区121的视觉色偏问题。
请参阅图2，图2是本申请实施例提供的显示面板100的局部示意图。所述彩色滤光层120还包括绿色像素区124和红色像素区125。所述红色像素区125、所述绿色像素区124及所述蓝色像素区121两两相间隔排列。所述红色像素区125用于在蓝光a的激发下发出红光e。所述绿色像素区124用于在蓝光a的激发下发出绿光d。所述红色像素区125、所述绿色像素区124及所述蓝色像素区121之间的间隙还设有遮光区126。所述遮光区126可为铬金属、 丙烯树脂或黑色树脂等，用于遮光，其又可称为黑矩阵。可以理解地，所述彩色滤光层是由多个绿色像素区124、红色像素区125、蓝色像素区121交替排列的阵列而成，从而显示出彩色。
进一步地，请参阅图2，所述绿色像素区124填充有第一量子点材料，所述红色像素区125填充有第二量子点材料。所述背光源110发射的蓝光a照射至绿色像素区124、红色像素区125及蓝色像素区121时，所述第一量子点材料受到蓝光a激发后使所述绿色像素区124发射绿光d，所述第二量子点材料受到蓝光a激发后使所述红色像素区125发射红光e。由于量子点材料是光致发光，可以改善光的视角出射，所以所述绿色像素区124和所述红色像素区125不会出现视角偏差的问题。
进一步地，请参阅图2，所述蓝色像素区121为了出射蓝光a，所述第一子像素区122及所述第二子像素区123可以设置透光材料，所述透光材料用于透过蓝光a。也可以的，所述第一子像素区122及所述第二子像素区123不设有物质。所述背光源110发射的蓝光a穿过蓝色像素区121时，由于蓝色像素区121没有量子点材料，如果所述蓝色像素区121出射的蓝光a无法改变出光角度和蓝光强度，这样会导致显示面板100的蓝色像素区121出现视角色偏；而且，蓝光的出射强度也会较大，这样会导致对用户眼睛的损伤。
本实施例中，彩色滤光层120的蓝色像素区121分为第一子像素区122和第二子像素区123，蓝色滤光膜130上的第一滤光区131与所述第一子像素区122相对，蓝色滤光膜130上的第二滤光区132与所述第二子像素区123相对。背光源110发射的光线依次穿过彩色滤光层120和蓝色滤光膜130，由于蓝色像素区121划分为两个或两个以上子像素区，蓝色滤光膜130划分为两个或两个以上滤光区，且蓝色滤光膜130的滤光区与子像素区相对应，通过调节各个子像素区连接不同的数据信号，或通过调节各个子像素区的面积比，或者各个滤光区的厚度比，可以使得穿过所述第一子像素区122后的光线的发光强度与穿过第二子像素区123后的光线的发光强度不同，这样使得蓝色像素区121的各个子像素区产生不同的显示亮度和斜视亮度，从而减少蓝色像素区121蓝光视角色偏的问题。此外，所述蓝色滤光膜130可以减弱蓝色像素区121的强度，从而减少蓝光对用户眼睛的损伤。
本申请中，为了减少蓝色像素区121蓝光视角色偏的问题，将蓝色像素区121分为第一子像素区122和第二子像素区123后，可以通过一些技术手段来调节第一子像素区122处和第二子像素区123处的显示亮度，例如，两个子像素区连接不同的数据信号，或通过调节两个子像素区的面积比，或者两个滤光区的厚度比等。通过以下的实施例进行具体的说明，本申请包括但不限于以下的实施例。本申请所述第一子像素区122处的显示亮度是指第一子像素区122对应于所述显示面板100所显示的亮度，第二子像素区123处的显示亮度是指第为像素区对应于所述显示面板100所显示的亮度。
第一实施例
请参阅图2，蓝色滤光膜130用于削弱出射蓝光的强度，使得在某一亮度下的蓝光不易透过，在特定亮度以上的蓝光透过后其亮度遭到削弱。本实施例通过调节所述第一滤光区131的厚度h1与所述第二滤光区132的厚度h2不同，来使得第一滤光区131所削弱的蓝光的亮度与所述第二滤光区132所削弱的蓝光的亮度不同，从而使得第一子像素区122处的显示亮度和第二子像素区123处的显示亮度不同，进而减少蓝色像素区121蓝光视角色偏的问题。
可选的，所述第一滤光区131和所述第二滤光区132的材质可以相同，及将所述蓝色滤光膜130制成图案化的即可，这样可以减少工艺难度及节省人力物力。
所述蓝色滤光膜130的材质在本申请中不做限定。
请参阅图3，所述第一子像素区122及所述第二子像素区123不设有物质。可以将第一滤光区131和第二滤光区132分别插入第一子像素区122和所述第二子像素区123中，这样可以减少显示面板100的整体厚度，促进显示面板100的轻薄化发展。
第二实施例
本实施例中，通过调节所述第一子像素区122的面积与所述第二子像素区123的面积之比，使得第一子像素区122处的显示亮度和第二子像素区123处的显示亮度不同，进而减少蓝色像素区121蓝光视角色偏的问题。
可选的，所述第一子像素区122的面积与所述第二子像素区123的面积之比为1:4～4:1。当所述蓝色像素区121的子像素区的面积过大，那么该子像素 区所透过的蓝光亮度过大，削弱蓝光的作用弱。当所述蓝色像素区121的子像素区的面积过小，该子像素区所透过的蓝光亮度过大，影响显示面板100的显示质量。
可选的，请参阅图2，所述遮光区126设于所述第一子像素区122和所述第二子像素区123之间，用于间隔所述第一子像素区122和所述第二子像素区123。此外，所述遮光区126可以遮挡蓝光，从而削弱蓝光的强度。
第三实施例
所述显示面板100还包括第一数据线和第二数据线(未图示)。所述第一子像素区122电连接于所述第一数据线，所述第二子像素区123电连接于所述第二数据线，所述第一数据线与所述第二数据线输出不同的数据信号。那么，所述第一子像素区122与所述第二子像素区123输入不同的数据信号，这样可以使第一子像素区122与所述第二子像素区123具有不同的灰度，从而使得第一子像素区122处的显示亮度和第二子像素区123处的显示亮度不同，进而减少蓝色像素区121蓝光视角色偏的问题。
本申请中，以上所述的第一实施例、第二实施例及第三实施例的技术手段可以相结合的使用，即可根据第一子像素区122和第二子像素区123的面积比，调节第一滤光区131和第二滤光区132的厚度，或根据第一滤光区131和第二滤光区132的厚度，进行第一子像素区122和第二子像素区123的输入信号的调整，或根据第一子像素区122和第二子像素区123的面积比，进行第一子像素区122和第二子像素区123的输入信号的调整，使得正视和斜视的蓝色亮度表现达到最佳化。
可选的，请参阅图2及图3，所述蓝光滤光膜130还包括第三滤光区133，所述第三滤光区133与所述红色像素区125和所述绿色像素区124相对。
可选的，所述第三滤光区133的厚度h3与所述第一滤光区131的厚度h1和所述第二滤光区132的厚度h2不同，以透过不同的蓝光亮度。
本申请中，彩色滤光层120的发光层由量子点材料制得，即彩色滤光层120为量子点彩色滤光层120。其中，所述第一量子点材料、第二量子点材料可以选自II-VI、或III-V族量子点材料。优选的，选自CdS、CdSe、CdTe、ZnS等材料其中一种或多种的组合。这些半导体量子点都遵守量子尺寸效应， 能级跟随量子点的尺寸变化而变化，性质也随量子点的尺寸变化而变化，例如吸收及发射的发光强度随尺寸变化而变化，所以可以通过改变其尺寸来控制发射发光强度。通过控制量子点的尺寸，可以使其激发出发光强度为630-720nm的单色红光、发光强度为500-560nm的单色绿光等。
上述彩色滤光层120的制造方法，制得的彩色滤光层120可与蓝色背光配合使用，以使所述彩色滤光层120的红色像素区125、绿色像素区124分别对应设有红色、绿色图案，在蓝光的激发下，所述红色、绿色图案分别激发出红、绿光，且背光源110发出的蓝光透过蓝色像素区121呈现出蓝色，从而实现红、绿、蓝三原色显示。
可选的，请参阅图4，所述彩色滤光层120与背光源110之间还设有依次层叠的薄膜晶体管层140、液晶层150、透明导电薄膜层160、偏振层170及平坦层180。薄膜晶体管层140靠近背光源110设置。所述液晶层150具有液晶分子151。所述显示面板100还包括基板190，所述基板190设于所述蓝色滤光膜130远离所述彩色滤光层120的一侧。
本实施方式中，所述偏振层170可以设于所述液晶层150与所述彩色滤光层120之间，原因在于量子点材料产生颜色的机理在于光致发光，会造成显示面板100的偏振光传递受到影响，故而将彩色滤光层120一侧的偏振层170置于彩色滤光层120与液晶层150之间，避免了偏振光在经过彩色滤光层120后变成部分偏振光，从而影响显示的结果。
所述透明导电薄膜层160其材质包括金属氧化物，例如是铟锡氧化物、铟锌氧化物、铝锡氧化物、铝锌氧化物、铟锗锌氧化物、或其它合适的氧化物、或者是上述至少二者的堆栈层。
可选的，平坦层180覆盖彩色滤光层120。由于量子点材料对水氧敏感，故而在偏振层170和彩色滤光层120之间需要平坦层180来封装所述量子点材料，防止所述量子点材料被氧化。
其中，平坦层180的材料包含无机材料(例如：氧化硅、氮化硅、氮氧化硅、其它合适的材料、或上述至少二种材料的堆栈层)、有机材料(例如：聚酯类(PET)、聚烯类、聚丙酰类、聚碳酸酯类、聚环氧烷类、聚苯烯类、聚醚类、聚酮类、聚醇类、聚醛类、或其它合适的材料、或上述的组合)、或其 它合适的材料、或上述的组合。
本申请实施例还提供了一种显示装置，包括上述任一实施方式所述的显示面板100。所述显示装置可以是液晶电视、移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等具有显示面板100的电子设备。
本申请提供的显示装置使得蓝色像素区121的子像素区产生不同的显示亮度和斜视亮度，从而减少蓝色像素区121蓝光视角色偏的问题，提高了显示装置的显示品质。蓝色滤光膜130可以减弱蓝色像素区121的强度，从而减少蓝光对用户眼睛的损伤。
综上所述，虽然本申请已以较佳实施例揭露如上，但该较佳实施例并非用以限制本申请，该领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (17)

  1. 一种显示面板，其中，包括依次层叠设置的背光源、彩色滤光层及蓝色滤光膜，所述背光源用于发射蓝光，所述彩色滤光层包括蓝色像素区，所述蓝色像素区用于透过蓝光，所述蓝色像素区包括第一子像素区和第二子像素区，所述蓝色滤光膜用于削弱蓝光的强度，所述蓝色滤光膜具有第一滤光区和第二滤光区，所述第一滤光区与所述第一子像素区相对设置，所述第二滤光区与所述第二子像素区相对设置，所述背光源发射的光线透过所述第一子像素区和所述第一滤光区后形成第一光线，所述背光源发射的光线透过所述第二子像素区和所述第二滤光区后形成第二光线，所述第一光线的发光强度与所述第二光线的发光强度不同。
  2. 如权利要求1所述的显示面板，其中，所述第一滤光区的厚度与所述第二滤光区的厚度不同。
  3. 如权利要求1所述的显示面板，其中，所述第一子像素区的面积与所述第二子像素区的面积之比为1:4～4:1。
  4. 如权利要求1所述的显示面板，其中，所述彩色滤光层还包括遮光区，所述遮光区设于所述第一子像素区和所述第二子像素区之间。
  5. 如权利要求1所述的显示面板，其中，所述显示面板还包括第一数据线和第二数据线，所述第一子像素区电连接于所述第一数据线，所述第二子像素区电连接于所述第二数据线，所述第一数据线与所述第二数据线输出不同的数据信号。
  6. 如权利要求1所述的显示面板，其中，所述彩色滤光层还包括红色像素区及绿色像素区，所述红色像素区、所述绿色像素区及所述蓝色像素区两两相间隔排列，所述红色像素区用于在蓝光的激发下发出红光，所述绿色像素区用于在蓝光的激发下发出绿光，所述红色像素区、所述绿色像素区及所述蓝色像素区之间的间隙还设有遮光区，用于遮光。
  7. 如权利要求6所述的显示面板，其中，所述蓝光滤光膜还包括第三滤光区，所述第三滤光区与所述红色像素区及所述绿色像素区相对。
  8. 如权利要求7所述的显示面板，其中，所述第三滤光区的厚度与所述第一滤光区的厚度及所述第二滤光区的厚度不同。
  9. 如权利要求8所述的显示面板，其中，所述红色像素区设有第一量子点材料，所述第一量子点材料用于在蓝光的激发下发出红光，所述绿色像素区设有第二量子点材料，所述第二量子点材料用于在蓝光的激发下发出绿光，所述第一子像素区及所述第二子像素区设有透光材料，所述透光材料用于透过蓝光。
  10. 一种显示装置，其中，包括显示面板，所述显示面板包括依次层叠设置的背光源、彩色滤光层及蓝色滤光膜，所述背光源用于发射蓝光，所述彩色滤光层包括蓝色像素区，所述蓝色像素区用于透过蓝光，所述蓝色像素区包括第一子像素区和第二子像素区，所述蓝色滤光膜用于削弱蓝光的强度，所述蓝色滤光膜具有第一滤光区和第二滤光区，所述第一滤光区与所述第一子像素区相对设置，所述第二滤光区与所述第二子像素区相对设置，所述背光源发射的光线透过所述第一子像素区和所述第一滤光区后形成第一光线，所述背光源发射的光线透过所述第二子像素区和所述第二滤光区后形成第二光线，所述第一光线的发光强度与所述第二光线的发光强度不同。
  11. 如权利要求10所述的显示装置，其中，所述第一滤光区的厚度与所述第二滤光区的厚度不同。
  12. 如权利要求10所述的显示装置，其中，所述第一子像素区的面积与所述第二子像素区的面积之比为1:4～4:1。
  13. 如权利要求10所述的显示装置，其中，所述彩色滤光层还包括遮光区，所述遮光区设于所述第一子像素区和所述第二子像素区之间。
  14. 如权利要求10所述的显示装置，其中，所述显示面板还包括第一数据线和第二数据线，所述第一子像素区电连接于所述第一数据线，所述第二子像素区电连接于所述第二数据线，所述第一数据线与所述第二数据线输出不同的数据信号。
  15. 如权利要求10所述的显示装置，其中，所述彩色滤光层还包括红色像素区及绿色像素区，所述红色像素区、所述绿色像素区及所述蓝色像素区两两相间隔排列，所述红色像素区用于在蓝光的激发下发出红光，所述绿色像素区用于在蓝光的激发下发出绿光，所述红色像素区、所述绿色像素区及所述蓝色像素区之间的间隙还设有遮光区，用于遮光。
  16. 如权利要求15所述的显示装置，其中，所述蓝光滤光膜还包括第三滤 光区，所述第三滤光区与所述红色像素区及所述绿色像素区相对。
  17. 如权利要求16所述的显示装置，其中，所述第三滤光区的厚度与所述第一滤光区的厚度及所述第二滤光区的厚度不同。
PCT/CN2018/071458 2017-07-24 2018-01-04 显示面板及显示装置 Ceased WO2019019560A1 (zh)

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