WO2019001002A1 - 显示面板及其制作方法、显示装置 - Google Patents
显示面板及其制作方法、显示装置 Download PDFInfo
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- WO2019001002A1 WO2019001002A1 PCT/CN2018/078123 CN2018078123W WO2019001002A1 WO 2019001002 A1 WO2019001002 A1 WO 2019001002A1 CN 2018078123 W CN2018078123 W CN 2018078123W WO 2019001002 A1 WO2019001002 A1 WO 2019001002A1
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- pigment
- display panel
- layer
- mixed layer
- transparent substrate
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000049 pigment Substances 0.000 claims abstract description 190
- 239000000203 mixture Substances 0.000 claims abstract description 38
- 239000000758 substrate Substances 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 17
- 239000010409 thin film Substances 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 9
- 239000013039 cover film Substances 0.000 claims description 6
- 239000006059 cover glass Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 6
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 5
- -1 polyethylene naphthalate Polymers 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 239000010408 film Substances 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 description 5
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
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- 230000010287 polarization Effects 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 206010049155 Visual brightness Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000001055 blue pigment Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
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Images
Classifications
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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
- G02F1/133502—Antiglare, refractive index matching layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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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
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/1201—Manufacture or treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/124—Insulating layers formed between TFT elements and OLED elements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/873—Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
Definitions
- the present disclosure relates to the field of display technologies, and in particular, to a display panel, a display device, and a method of manufacturing the display panel.
- LCDs liquid crystal displays
- OLED organic light emitting diode
- a conductive electrode in an OLED display is generally formed of a highly reflective metal material that reflects ambient light to a viewer of the display device, affecting the viewer's viewing effect.
- the pixel driving layer in the display device is also reflective.
- a conventional solution is to provide a polarizer and a quarter wave plate in the display device. The polarizer polarizes the ambient light incident on the display, and the quarter wave plate rotates the polarization of the polarized light by 45 degrees.
- any polarized light that is reflected back through the quarter-wave plate is further rotated by 45 degrees so that the polarization direction of the polarized light is perpendicular to the polarizing plate, and therefore, the reflected light is substantially absorbed by the polarizing plate, so that the contrast of the display device can be improved.
- optical structures including polarizers and quarter-wave plates to improve the viewing performance of display devices have the disadvantage that such optical structures are relatively thick (typically greater than 120 microns), And the optical mechanism causes the transmittance of light from the pixels inside the display device to be low (often less than 45%), affecting the visual brightness of the display device to the viewer.
- the optical structure including the polarizer and the quarter-wave plate has a high hardness, which is not suitable for the production of a flexible display device. Accordingly, embodiments of the present disclosure are directed to providing an improved solution that can increase the contrast of a display device.
- a display panel includes a pixel array, and further includes a pigment mixing layer between the pixel driving layer and a light emitting surface of the display panel.
- the pigment mixed layer includes a mixture of a first pigment absorbing red light, a second pigment absorbing green light, and a third pigment absorbing blue light, and the ratio of the first pigment in the mixture is 15% to 20%, and the second pigment The proportion in the mixture is from 50% to 80%, and the proportion of the third pigment in the mixture is from 5% to 20%.
- a pigment mixed layer including a specific ratio of the first pigment, the second pigment, and the third pigment in place of the polarizing plate and the quarter wave plate, not only the reflection of the ambient light of the display panel can be significantly reduced.
- the effect is to improve the viewer's visual effect, and also to improve the light transmittance of the pixels inside the display panel.
- the pigment mixed layer is also more advantageous for the realization of the flexible display panel.
- the display panel further includes a transparent substrate directly carrying the pigment mixing layer.
- the pigment mixed layer has a thickness of 20 ⁇ m to 60 ⁇ m, and the transparent substrate has a thickness of 5 ⁇ m to 30 ⁇ m.
- the material of the transparent substrate comprises polyethylene naphthalate.
- the display panel is an OLED display panel, the transparent substrate and the pigment mixing layer being above the organic light emitting layer.
- the OLED display panel further includes a touch electrode layer and a cover glass, the transparent substrate and the pigment mixed layer being between the touch electrode layer and the cover glass.
- the OLED display panel further includes a thin film package for protecting the organic light emitting layer, the transparent substrate and the pigment mixed layer being adjacent to the thin film package.
- the display panel is an LCD panel with a pigment mixing layer above the color filter substrate of the LCD panel.
- Another embodiment of the present disclosure also provides a display device, which may include the display panel as described in any of the foregoing embodiments.
- Yet another embodiment of the present disclosure proposes a method of making a display panel.
- the method can include the following steps:
- a pixel driving layer of the display panel preparing a pigment mixed layer comprising a mixture of a first pigment absorbing red light, a second pigment absorbing green light, and a third pigment absorbing blue light, the first pigment
- the ratio in the mixture is 15% to 20%
- the ratio of the second pigment in the mixture is 50% to 80%
- the ratio of the third pigment in the mixture is 5% to 20%
- the pigment mixed layer is located in the pixel driving layer Between the illuminated surface of the display panel.
- the step of fabricating the pigment mixing layer comprises:
- the first pigment, the second pigment, and the third pigment are uniformly mixed in proportion to obtain a pigment mixture; and the obtained pigment mixture is coated on a transparent substrate to form a pigment mixed layer on one surface of the transparent substrate.
- the pigment mixed layer has a thickness of from 20 ⁇ m to 60 ⁇ m, and the transparent substrate has a thickness of from 5 ⁇ m to 30 ⁇ m.
- the method of fabricating a display panel further includes adhering a surface of the transparent substrate opposite to a surface on which the pigment mixed layer is formed to the first carrier glass by using an optical glue before the pigment mixed layer is formed. And after the pigment mixed layer is formed, the first cover film is adhered to the surface of the pigment mixed layer with an optical glue.
- a method of fabricating a display panel further includes sequentially forming a pixel driving layer, an organic light emitting layer, and a thin film package for protecting the organic light emitting layer on a base substrate; and the first carrier The glass is peeled off from the transparent substrate, and a surface of the transparent substrate opposite to the surface on which the pigment mixed layer is formed is adhered to the thin film package.
- a method of fabricating a display panel further includes: peeling the first cover film from the pigment mixed layer, and forming a touch electrode layer and a package cover over the pigment mixed layer.
- the material of the base substrate includes polyimide
- the material of the transparent substrate includes polyethylene naphthalate.
- Figure 1 schematically illustrates the process of ambient light exiting the interior of the display panel through the pigment mixing layer and then exiting again from the pigment mixing layer.
- FIG. 2 schematically illustrates a cross-sectional view of an OLED display panel in accordance with one embodiment of the present disclosure.
- 3 to 6 schematically illustrate steps involved in a method of fabricating the display panel as shown in FIG. 2.
- Embodiments of the present disclosure provide a display panel applicable to a display device.
- the display panel includes a pixel array composed of a plurality of pixels, and further includes a pigment mixed layer.
- the pigment mixing layer is located between the pixel driving layer and the light emitting surface of the display panel, and the pigment mixed layer comprises a mixture of a first pigment absorbing red light, a second pigment absorbing green light, and a third pigment absorbing blue light,
- the ratio of a pigment in the mixture is from 15% to 20%
- the ratio of the second pigment in the mixture is from 50% to 80%
- the ratio of the third pigment in the mixture is from 5% to 20%.
- the "pixel driving layer” mentioned herein refers to a structure in the display panel for driving the light emission of each pixel.
- the pixel driving layer may include an OLED pixel driving circuit, and the OLED pixel driving layer may include a switching transistor and a driving transistor electrically connected to the organic light emitting unit.
- the pixel drive layer can include pixel drive circuitry on the array substrate in the LCD face.
- Fig. 1 schematically shows the process in which external ambient light passes through the pigment mixing layer to the inside of the display panel and then exits again from the pigment mixing layer.
- various reflective elements in the display panel are schematically illustrated as a layer structure F.
- the external ambient light is incident on the pigment mixed layer 10, and a part of the ambient light is absorbed by the pigment mixed layer 10, leaving a part of the light to pass through the pigment mixed layer.
- the light transmitted through the pigment mixed layer 10 is reflected by the reflective element F inside the display panel, and then the light reflected by the reflective element F passes through the pigment mixed layer 10 again, at which time the pigment mixed layer 10 absorbs a part of the reflected light again. . Therefore, the ambient light can be subjected to the two absorption processes of the pigment mixed layer 10 from entering the display panel to leaving the display panel, and finally, the ambient light emitted from the pigment mixed layer 10 is significantly weakened. Thus, the reflection of the ambient light by the display panel is greatly reduced, thereby improving the contrast of the display device to which the display panel is applied.
- the red light absorbing first pigment, the green light absorbing second pigment, and the blue light absorbing third pigment mentioned in the embodiments of the present disclosure may include any material known to those skilled in the art capable of absorbing light of a corresponding color. This is known to those skilled in the art, and the invention is not limited thereto.
- the ambient light outside the display device is usually white light
- the white light can be regarded as a mixture of three primary colors of red (R), green (G) and blue (B).
- the red pigment-absorbing first pigment, the green-absorbing second pigment, and the blue-absorbing third pigment in the pigment mixed layer can respectively absorb red light, green light, and blue light in ambient light, thereby reducing the display panel.
- the pigment mixed layer 10 may have a certain influence on the backlight of the display panel or the transmittance of light emitted from each pixel.
- the inventors of the present application conducted an experimental study to determine the degree of influence of the pigment mixed layer on the transmittance of light from pixels of the display panel.
- the pigment mixture layer has an effect on the transmittance of light from pixels of the display panel, under certain conditions, this effect is more conventional than including polarizers and quarters.
- the optical structure of the sheet has a low degree of influence on the transmittance of light of the pixel.
- the conventional optical structure including the polarizer and the quarter-wave plate generally has a light transmittance of the pixel of between 42% and 45%, therefore, by using the pigment mixed layer provided by the embodiment of the present disclosure, not only Acting as an anti-reflection layer for ambient light, it can also increase the transmittance of light from the display panel to its internal pixels, reducing the loss of light from the pixels.
- Table 1 below lists some experimental data based on a white organic light emitting diode (WOLED) display panel in which the light emitting device is a white light emitting OLED.
- the thickness in Table 1 refers to the thickness of the pigment mixed layer formed, and the "brightness ratio” refers to red (R), green (G), and blue (B) in ambient light under the conditions of the experiment.
- the ratio of the brightness of each component in ambient light “absorption intensity” refers to the ratio of absorption (absorption) of red, green and blue light in ambient light by the pigment mixture layer, "transmission rate” It is the transmittance of the light of the pigment mixed layer to the pixels of the display panel.
- the pigment mixed layer formed by mixing the first pigment, the second pigment and the third pigment in the proportional range proposed in the above embodiment can absorb the red light in the ambient light to a large extent.
- Green light and blue light and the pigment mixed layer has a light transmittance of more than 50% to the pixels inside the display panel.
- the light transmittance to the pixels inside the display panel may be higher than 65%, and The absorption of red, green and blue light in ambient light is higher.
- the thickness of the pigment mixed layer is from 20 ⁇ m to 60 ⁇ m, and the conventional optical structure including the polarizer and the quarter-wave plate (thickness is usually more than 120 ⁇ m), so that the thickness of the display panel is further reduced.
- the experiment corresponding to Table 1 is based on a WOLED display panel, the pigment mixed layer described in the embodiments of the present disclosure is equally applicable to a display panel including RGB organic light-emitting elements.
- the polarizer usually has a high hardness and is easily broken when bent, and the pigment mixed layer is much stronger than the polarizer. Therefore, the pigment mixed layer proposed by the embodiment of the present disclosure is more advantageous for flexible display.
- the implementation of the panel The implementation of the panel.
- the pigment mixed layer in the display panel proposed in the embodiment of the present disclosure may be formed on any appropriate layer structure of the display panel as long as the pigment mixed layer is located between the pixel driving layer and the light emitting surface of the display panel.
- a pigment mixed layer may be formed on a thin film package (TFE) that protects the organic light emitting layer in the OLED display panel.
- TFE thin film package
- the pigment mixed layer 10 is formed on a transparent substrate 20 having a thickness of 5 ⁇ m to 30 ⁇ m.
- a transparent substrate 20 having a thickness of 5 ⁇ m to 30 ⁇ m.
- the material of the transparent substrate 20 may be any suitable material having high light transmittance, including but not limited to polyethylene naphthalate (PEN).
- PEN polyethylene naphthalate
- the display panel further includes a base substrate 60, a pixel driving layer (for example, a thin film transistor TFT) 50, an organic light emitting layer 40, and a thin film package 30.
- the thin film package 30 can block water and oxygen, so that the organic light-emitting layer is protected from external water and oxygen.
- the display panel may further include a touch electrode layer 70 and a cover glass 80, and the touch electrode layer 70 may implement a touch function of the display panel.
- the pigment mixed layer 10 and the transparent substrate 20 are on the thin film package 30.
- the pigment mixed layer 10 and the transparent substrate 20 may also be under the thin film package 30 and above the organic light emitting layer 40. Therefore, the pigment mixed layer 10 and the transparent substrate 20 may be disposed adjacent to the thin film package 30.
- the pigment mixing layer and the transparent substrate may also be between the touch electrode layer and the cover glass.
- the technical concept disclosed in the embodiments of the present disclosure can be applied to an LCD panel.
- the pigment mixing layer can be located above the color filter substrate of the LCD panel.
- a further embodiment of the present disclosure provides a display device that can include the display panel described in any of the above-described embodiments of the present disclosure.
- Display devices include, but are not limited to, mobile phones, tablets, televisions, displays, notebook computers, digital photo frames, navigators, and the like, with any display product or component.
- a further embodiment of the present disclosure provides a method of fabricating a display panel.
- the method for fabricating a display panel provided by the implementation of the present disclosure may include the steps of: fabricating a pixel driving layer of the display panel; and fabricating a pigment mixing layer comprising a first pigment absorbing red light and a second pigment absorbing green light a mixture formed by mixing with a blue pigment absorbing third pigment, the ratio of the first pigment in the mixture is 15% to 20%, the ratio of the second pigment in the mixture is 50% to 80%, and the ratio of the third pigment in the mixture is 5% to 20%, the pigment mixed layer is located between the pixel driving layer and the light emitting surface of the display panel.
- the pixel driving layer 50, the organic light emitting layer 40, and the thin film package 30 may be sequentially formed on the base substrate 60.
- the thin film package 30 may protect the organic light emitting layer from water and oxygen. It can be understood that the pixel array of the display panel includes the organic light emitting layer 40.
- the manufacturing method of the display panel provided by the embodiment of the present disclosure may further include: pressing the first pigment absorbing red light, the second pigment absorbing green light, and the third pigment absorbing blue light after or before the step shown in FIG. 3
- the ratios were uniformly mixed to obtain a pigment mixture.
- the first pigment, the second pigment and the third pigment are uniformly mixed in the following proportions: 15% to 20% of the first pigment, 50% to 80% of the second pigment, and 5% to 20% of the third pigment pigment.
- the obtained pigment mixture was coated on a transparent substrate to form a pigment mixed layer on one surface of the transparent substrate.
- the obtained pigment mixture may be attached to the surface of the transparent substrate 20 by screen printing, spin coating or the like.
- the pigment mixed layer 10 is formed to have a thickness of 20 ⁇ m to 60 ⁇ m, and the transparent substrate 20 has a thickness of 5 ⁇ m to 30 ⁇ m.
- the surface of the transparent substrate 20 opposite to the surface on which the pigment mixed layer is formed may be adhered to the first carrier glass 200 before the pigment mixed layer is formed.
- the first cover film 400 is adhered to the surface of the pigment mixed layer 10 by the optical adhesive 300 as shown in FIG.
- the first carrier glass 200 and the optical adhesive 100 may be peeled off from the transparent substrate 20, and the surface of the transparent substrate 20 opposite to the surface on which the pigment mixed layer is formed is adhered to the thin film package 30.
- the first cover film 400 and the optical adhesive 300 may be peeled off from the pigment mixed layer, and the touch electrode layer 70 and the package cover 80 are formed over the pigment mixed layer.
- the formed package cover can serve as a package protection for the entire display panel.
- the material of the substrate includes, but is not limited to, polyimide
- the material of the transparent substrate includes, but is not limited to, polyethylene naphthalate.
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Abstract
Description
Claims (15)
- 一种显示面板,包括像素阵列,其中该显示面板还包括颜料混合层,所述颜料混合层处于像素驱动层和显示面板的发光表面之间,并且所述颜料混合层包括由吸收红光的第一颜料、吸收绿光的第二颜料和吸收蓝光的第三颜料混合形成的混合物,第一颜料在混合物中的比例为15%至20%,第二颜料在混合物中的比例为50%至80%,第三颜料在混合物中比例为5%至20%。
- 如权利要求1所述的显示面板,其中所述显示面板还包括直接承载所述颜料混合层的透明基板。
- 如权利要求2所述的显示面板,其中所述颜料混合层的厚度为20μm-60μm,所述透明基板的厚度为5μm-30μm。
- 如权利要求2所述的显示面板,其中所述透明基板的材料包括聚萘二甲酸乙二醇酯。
- 如权利要求2-4中任一项所述的显示面板,其中所述显示面板是OLED显示面板,所述透明基板和颜料混合层处于有机发光层的上方。
- 如权利要求5所述的显示面板,其中所述OLED显示面板还包括触控电极层和盖板玻璃,所述透明基板和颜料混合层处于所述触控电极层和盖板玻璃之间。
- 如权利要求5中所述的显示面板,其中所述OLED显示面板还包括用于保护有机发光层的薄膜封装,所述透明基板和颜料混合层与所述薄膜封装相邻。
- 如权利要求1-4中任一项所述的显示面板,其中所述显示面板是LCD面板,所述颜料混合层位于LCD面板的彩膜基板的上方。
- 一种显示装置,包括如权利要求1-8中任一项所述的显示面板。
- 一种制作显示面板的方法,包括:制作显示面板的像素驱动层;制作颜料混合层,所述颜料混合层包括由吸收红光的第一颜料、吸收绿光的第二颜料和吸收蓝光的第三颜料混合形成的混合物,第一颜料在混合物中的比例为15%至20%,第二颜料在混合物中的比例为50%至80%,第三颜料在混合物中比例为5%至20%,所述颜料混合层 位于像素驱动层和显示面板的发光表面之间。
- 如权利要求10所述的方法,其中所述制作颜料混合层的步骤包括:将第一颜料、第二颜料和第三颜料按比例进行均匀混合以得到颜料混合物;在透明基板上涂覆所得到的颜料混合物以在透明基板的一个表面上形成颜料混合层。
- 如权利要求11所述的方法,其中所述颜料混合层的厚度为20μm-60μm,所述透明基板的厚度为5μm-30μm。
- 如权利要求12所述的方法,还包括:在制作颜料混合层之前,采用光学胶将所述透明基板的与形成有颜料混合层的表面相对的表面粘附至第一载体玻璃;以及在形成颜料混合层之后,利用光学胶将第一盖板薄膜粘附至颜料混合层的表面。
- 如权利要求13所述的方法,还包括:在衬底基板上依次形成像素驱动层、有机发光层和用于保护所述有机发光层的薄膜封装;将所述第一载体玻璃从透明基板剥离,并将所述透明基板的与形成有颜料混合层的表面相对的表面粘附至所述薄膜封装。
- 如权利要求14所述的方法,其中所述方法还包括:将所述第一盖板薄膜从所述颜料混合层剥离,在颜料混合层的上方形成触控电极层和封装盖板。
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