CN111261663A - Display panel and manufacturing method thereof - Google Patents
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- CN111261663A CN111261663A CN201811458335.2A CN201811458335A CN111261663A CN 111261663 A CN111261663 A CN 111261663A CN 201811458335 A CN201811458335 A CN 201811458335A CN 111261663 A CN111261663 A CN 111261663A
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- 239000000758 substrate Substances 0.000 claims abstract description 52
- 230000005855 radiation Effects 0.000 claims abstract description 13
- 239000002313 adhesive film Substances 0.000 claims description 41
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- 239000003292 glue Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 230000002708 enhancing effect Effects 0.000 description 4
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- 230000001070 adhesive effect Effects 0.000 description 2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
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- H—ELECTRICITY
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- 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
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- 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
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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Abstract
The invention provides a display panel and a manufacturing method thereof, wherein the display panel comprises a substrate base plate, sub-pixels arranged on the substrate base plate and a quantum dot layer positioned above the substrate base plate; the quantum dot layer comprises quantum dot conversion units, the quantum dot conversion units are respectively in one-to-one correspondence with the sub-pixels, the shape of each quantum dot conversion unit is convex lens-shaped, and the light radiation range of each sub-pixel is located in the light conversion range of the corresponding quantum dot conversion unit. According to the display panel provided by the invention, the quantum dot conversion unit is arranged in the shape of the convex lens, so that light rays emitted by the sub-pixels can be refracted by the convex lens to be converged, and the display effect of the display panel is enhanced; the light radiation range of each sub-pixel is positioned in the light conversion range of the corresponding quantum dot conversion unit, so that the loss degree of light is reduced, and the display effect of the display panel is enhanced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a manufacturing method thereof.
Background
With the continuous development of display technology, the application of display panels is becoming more and more extensive, and Organic Light Emitting Diode (OLED) display panels are becoming more and more elegant in display panel industry due to the advantages of fast response speed, bright color, light and thin convenience, and are increasingly applied to the field of high-performance display.
In the existing display panel, the quantum dot layer is usually disposed right above the light emitting device, so that light emitted by the light emitting device towards the side cannot be converted by the quantum dot film, which easily causes light loss, and the light loss causes poor display effect of the existing display panel.
Disclosure of Invention
The embodiment of the invention provides a display panel and a manufacturing method thereof, which are used for reducing light loss and enhancing the display effect of the display panel.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
in one aspect, an embodiment of the present invention provides a display panel, including a substrate, m sub-pixels disposed on the substrate, and a quantum dot layer located above the substrate; the quantum dot layer comprises n quantum dot conversion units, the n quantum dot conversion units are respectively in one-to-one correspondence with the n sub-pixels, m and n are positive integers, and n is less than or equal to m; the shape of each quantum dot conversion unit is convex lens shape, and the light radiation range of each sub-pixel is located in the light conversion range of the corresponding quantum dot conversion unit.
Compared with the prior art, the display panel provided by the embodiment of the invention has the following advantages:
in the display panel provided by the embodiment of the invention, the quantum dot conversion units are arranged in a convex lens shape, and the convex lens-shaped quantum dot conversion units are respectively in one-to-one correspondence with the sub-pixels, so that light rays emitted by the sub-pixels can be refracted by the convex lenses to be converged, and the display effect of the display panel is enhanced; in addition, the light radiation range of each sub-pixel is positioned in the light conversion range of the corresponding quantum dot conversion unit, so that the light emitted from the right upper part, the oblique upper part and the side surface of the sub-pixel can be converted by the quantum dot conversion unit, the loss degree of the light is reduced, and the display effect of the display panel is enhanced.
As an improvement of the display panel of the embodiment of the invention, the focus of each quantum dot conversion unit coincides with the center of the light emitting surface of the corresponding sub-pixel.
As a further improvement of the display panel according to the embodiment of the present invention, m sub-pixels are all blue sub-pixels, n quantum dot conversion units include a red quantum dot conversion unit and a green quantum dot conversion unit, and n < m.
As an improvement of the display panel according to the embodiment of the present invention, m of the sub-pixels are all white sub-pixels, the n quantum dot conversion units include a red quantum dot conversion unit, a green quantum dot conversion unit, and a blue quantum dot conversion unit, and n ═ m.
As another improvement of the display panel according to the embodiment of the present invention, a plane perpendicular to the substrate base plate is taken as a cross section, and the cross section of each quantum dot conversion unit is in a semicircular shape.
As an improvement of the display panel according to the embodiment of the invention, the quantum dot layer further includes an adhesive film for carrying the n quantum dot conversion units.
As a further improvement of the display panel in the embodiment of the invention, the shape of the region of the adhesive film corresponding to each quantum dot conversion unit is similar to the shape of the quantum dot conversion unit.
As a further improvement of the display panel provided by the embodiment of the invention, the adhesive film positioned between two adjacent quantum dot conversion units is in contact with the substrate base plate.
On the other hand, the embodiment of the invention also provides a manufacturing method of the display panel, which comprises the following steps:
providing a substrate base plate;
forming m sub-pixels on the substrate base plate, wherein m is a positive integer;
forming a glue film in a mould;
forming n quantum dot conversion units in a set area of the adhesive film, wherein n is a positive integer and is less than or equal to m;
arranging an adhesive film on which n quantum dot conversion units are formed above the substrate base plate, wherein the n quantum dot conversion units are respectively in one-to-one correspondence with the n sub-pixels; and the shape of each quantum dot conversion unit is convex lens shape, and the light radiation range of each sub-pixel is positioned in the light conversion range of the corresponding quantum dot conversion unit.
The display panel can be manufactured by the manufacturing method of the display panel provided by the embodiment of the invention.
As an improvement of the manufacturing method of the display panel according to the embodiment of the present invention, the step of forming the adhesive film in the mold includes:
providing a die, wherein the die comprises a static die and a movable die, the static die comprises n die cavities, and the movable die comprises n pressure heads in one-to-one correspondence with the n die cavities;
respectively injecting liquid glue into the n die cavities;
the die is closed, so that the pressure head extends into the die cavity, and the die is cooled;
and opening the die, and forming an adhesive film with n quantum dot conversion units in the static die, wherein the adhesive film with the n quantum dot conversion units is a quantum dot layer.
In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems that can be solved by the display panel and the manufacturing method thereof provided by the embodiments of the present invention, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.
Drawings
In order to illustrate embodiments of the invention or prior art solutions more clearly, the drawings that are needed in the description of the embodiments of the invention or prior art will be briefly described below, it being understood that the drawings in the following description are only some embodiments of the invention, and that these drawings and the written description are not intended to limit the scope of the disclosed concept in any way, but rather to illustrate it to those skilled in the art by reference to specific embodiments, and that other drawings may be obtained by those skilled in the art without inventive effort.
Fig. 1 is a first schematic structural diagram of a display panel according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a display panel according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a display panel according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display panel according to a first embodiment of the present invention;
fig. 5 is a flowchart of a manufacturing method of a display panel according to a second embodiment of the present invention.
Description of reference numerals:
10-a substrate base plate;
21-blue sub-pixel;
22-a white light sub-pixel;
23-a drive circuit;
30-quantum dot conversion unit;
40-glue film.
Detailed Description
In the display panel, since the quantum dot layer is usually disposed directly above the light emitting device, light emitted from the light emitting device to the side surface cannot be converted by the quantum dot film, which easily causes light loss, and the display effect of the conventional display panel is poor due to the light loss.
In view of the above-mentioned drawbacks, an embodiment of the present invention provides an improved technical solution, in which a sub-pixel and a quantum dot conversion unit corresponding to the sub-pixel are provided, the quantum dot conversion unit is in a convex lens shape, the convex lens-shaped quantum dot conversion unit corresponds to the sub-pixel one by one, and a light radiation range of each sub-pixel is located within a light conversion range of the corresponding quantum dot conversion unit, so that lights emitted from right above, obliquely above, and lateral sides of the sub-pixel can be converted by the quantum dot conversion unit, thereby reducing light loss, and enhancing a display effect of a display panel.
In order to make the aforementioned objects, features and advantages of the embodiments of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, fig. 1 is a first schematic structural diagram of a display panel according to a first embodiment of the present invention; fig. 2 is a schematic structural diagram of a display panel according to a first embodiment of the present invention. The display panel provided by the embodiment of the invention comprises a substrate base plate 10, m sub-pixels arranged on the substrate base plate 10 and a quantum dot layer positioned above the substrate base plate 10; the quantum dot layer comprises n quantum dot conversion units 30, the n quantum dot conversion units 30 are respectively in one-to-one correspondence with the n sub-pixels, m and n are positive integers, and n is less than or equal to m; each quantum dot conversion unit 30 is shaped like a convex lens, and the light radiation range of each sub-pixel is located within the light conversion range of the corresponding quantum dot conversion unit 30. It should be noted that the light conversion range described in the present embodiment generally refers to a region that can be effectively used for light conversion in the quantum dot conversion unit 30.
The substrate 10 may be a flexible plastic substrate, a glass substrate, or a quartz substrate, and the substrate 10 according to the embodiment of the present invention is not limited thereto and may be determined according to the actual situation. The substrate 10 is located at the bottom layer of the display panel for carrying other devices of the display panel. The sub-pixels may be red, green, blue 21 or white 22 sub-pixels. The number of the sub-pixels is m, m is a positive integer, and the m sub-pixels are uniformly arranged on the base substrate 10, for example, arranged on the base substrate 10 in an array. Drive circuits 23 are further arranged between the sub-pixels and the substrate base plate 10, in the embodiment, each sub-pixel corresponds to one drive circuit 23, and each sub-pixel is driven by the corresponding drive circuit 23.
In the present embodiment, the number of sub-pixels is m, and correspondingly, the number of quantum dot conversion units 30 in the quantum dot layer is n, and n ≦ m, and the following embodiment is described by taking n ═ m as an example.
The quantum dot layer is arranged to enable the color purity of light emitted by the sub-pixels to be better, in addition, n quantum dot conversion units 30 are arranged, the n quantum dot conversion units 30 are identical in shape and are all arranged in a convex lens shape, concave surfaces of the convex lenses face the sub-pixels, light emitted by the sub-pixels is refracted through the convex lens-shaped quantum dot conversion units 30 to be converged, the light emitting range is narrowed, and therefore the display effect of the display panel is enhanced.
Taking the display panel shown in fig. 1 as an example, fig. 1 shows a structure of a possible display panel, the display panel shown in fig. 1 includes a substrate 10 disposed at the bottom, m driving circuits 23 disposed above the substrate 10, m sub-pixels, and a quantum dot layer, wherein the quantum dot layer includes m quantum dot conversion units 30 disposed in one-to-one correspondence with the m sub-pixels, the quantum dot conversion units 30 are shaped like convex lenses, the convex lens-shaped quantum dot conversion units 30 are covered outside the sub-pixels, and the light radiation range of the sub-pixels is within the light conversion range of the quantum dot conversion units 30. More specifically, in the display panel shown in fig. 1, the inner sidewall of the quantum dot conversion unit 30 is in contact with the driving circuit 23 located below the sub-pixel, that is, the quantum dot conversion unit 30 completely covers the sub-pixel corresponding to the quantum dot conversion unit, and compared with the prior art in which the quantum dot conversion unit 30 is disposed above the sub-pixel in parallel, in the display panel provided in the embodiment of the present invention, the light emitted from the sub-pixel to the right above and the side above can be converted by the quantum dot conversion unit 30, so that the light loss is reduced, and the display effect of the display panel is enhanced.
Taking the display panel shown in fig. 2 as an example, fig. 2 shows another possible structure of the display panel, the display panel shown in fig. 2 includes a substrate 10 disposed at the bottom, m driving circuits 23 disposed above the substrate 10, sub-pixels, and a quantum dot layer, the quantum dot layer includes m quantum dot conversion units 30 disposed in one-to-one correspondence with the m sub-pixels, and the quantum dot conversion units 30 are shaped like convex lenses, the convex lens-shaped quantum dot conversion units 30 are covered outside the sub-pixels, and the light radiation range of the sub-pixels is within the light conversion range of the quantum dot conversion units 30. More specifically, in the display panel shown in fig. 2, the inner sidewall of the quantum dot conversion unit 30 contacts the edge of the light emitting surface of the sub-pixel, that is, the quantum dot conversion unit 30 completely covers the light emitting surface of the sub-pixel corresponding to the quantum dot conversion unit 30, and compared with the prior art in which the quantum dot conversion unit 30 is disposed above the sub-pixel in parallel, in the display panel provided in the embodiment of the present invention, the light emitted from the sub-pixel directly above and laterally above can be converted by the quantum dot conversion unit 30, so that the light loss is reduced, and the display effect of the display panel is enhanced.
In summary, in the display panel provided in this embodiment, the quantum dot conversion units 30 are arranged in a convex lens shape, and the convex lens-shaped quantum dot conversion units 30 are respectively in one-to-one correspondence with the sub-pixels, so that the light emitted by each sub-pixel can be refracted by the corresponding convex lens-shaped quantum dot conversion unit 30 and converged, thereby enhancing the display effect of the display panel; in addition, because the light radiation range of each sub-pixel is located in the light conversion range of the corresponding quantum dot conversion unit 30, the light emitted by the sub-pixel to the right above, obliquely above and laterally can be converted by the quantum dot conversion unit 30, so that the light loss is reduced, and the display effect of the display panel is enhanced.
Further, in one possible implementation, the focal point of each quantum dot conversion unit 30 coincides with the center of the light emitting surface of the corresponding sub-pixel. In this embodiment, the quantum dot conversion unit 30 is in a convex lens shape, a focus of the convex lens-shaped quantum dot conversion unit 30 coincides with a center of the light emitting surface of the sub-pixel, that is, the focus of the quantum dot conversion unit 30 is located at a center of the light emitting surface of the sub-pixel corresponding to the focus of the convex lens-shaped quantum dot conversion unit 30, and by such arrangement, light emitted by the sub-pixel is refracted by the quantum dot conversion unit 30 and then further converged, the convergence degree of the light is enhanced, and the display effect of the display panel is further enhanced.
Further, in a possible implementation manner, m sub-pixels are all blue sub-pixels 21, n quantum dot conversion units 30 include a red quantum dot conversion unit and a green quantum dot conversion unit, n is less than m, and n and m are all positive integers. Fig. 3 is a third schematic structural diagram of the display panel according to the first embodiment of the present invention, and fig. 4 is a fourth schematic structural diagram of the display panel according to the first embodiment of the present invention. In this embodiment, the sub-pixels are set as blue sub-pixels 21, and the quantum dot conversion units 30 corresponding to the blue sub-pixels 21 are a red quantum dot conversion unit and a green quantum dot conversion unit. As shown in fig. 3 and 4, the number of the blue sub-pixels 21 in the present embodiment is m, wherein the quantum dot conversion units 30 are not required to be arranged outside the (m-n) blue sub-pixels 21, i.e., the blue light is directly output; in the rest n blue light sub-pixels 21, a part of the blue light sub-pixels 21 corresponds to the red light quantum dot conversion unit, light emitted by the part of the blue light sub-pixels 21 is converted by the red light quantum dot conversion unit and then outputs red light, the other part of the blue light sub-pixels 21 corresponds to the green light quantum dot conversion unit, and light emitted by the part of the blue light sub-pixels 21 is converted by the green light quantum dot conversion unit and then outputs green light.
Further, in another possible implementation manner, m sub-pixels are all white sub-pixels 22, and the n quantum dot conversion unit 30 includes a red quantum dot conversion unit, a green quantum dot conversion unit, and a blue quantum dot conversion unit, where n is m, and n and m are all positive integers. In this embodiment, the sub-pixels are configured as white sub-pixels 22, and the quantum dot conversion units 30 configured corresponding to the white sub-pixels 22 are a red quantum dot conversion unit, a green quantum dot conversion unit, and a blue quantum dot conversion unit. As shown in fig. 1 and 2, in this embodiment, the number of the white sub-pixels 22 is m, a red light quantum dot conversion unit, a green light quantum dot conversion unit, or a blue light quantum dot conversion unit is correspondingly disposed outside the m white sub-pixels 22, red light is output after conversion by the red light quantum dot conversion unit, green light is output after conversion by the green light quantum dot conversion unit, and blue light is output after conversion by the blue light quantum dot conversion unit.
In one possible implementation, the cross-sectional shape of each quantum dot conversion unit 30 is a semicircular ring shape, taking a plane perpendicular to the substrate base plate 10 as a cross section. Specifically, the quantum dot conversion unit 30 is shaped like a convex lens, and taking the placement orientation of the display panel shown in fig. 1 as an example, the cross section of the quantum dot conversion unit 30 is semicircular, which is convenient for manufacturing, and on the other hand, the light emitted by the sub-pixels can be more uniform after being converted by the quantum dot conversion unit 30.
Further, in a preferred embodiment, the quantum dot layer further includes an adhesive film 40 for carrying the n quantum dot conversion units 30. Specifically, the adhesive film 40 is disposed on a side of the n quantum dot conversion units 30 facing away from the sub-pixels, the adhesive film 40 is used for bearing and fixing the quantum dot conversion units 30, in addition, the arrangement of the adhesive film 40 ensures the stability of the quantum dot conversion units 30, and the arrangement of the adhesive film 40 facilitates the manufacturing of the quantum dot layer.
Further, the shape of the region of the adhesive film 40 corresponding to each quantum dot conversion unit 30 is similar to the shape of the quantum dot conversion unit 30. For example, in the above embodiment, the quantum dot conversion unit 30 is arranged in a convex lens shape, and accordingly, the region where the adhesive film 40 contacts the quantum dot conversion unit 30 is also arranged in a convex lens shape, which facilitates the fabrication of the quantum dot conversion unit 30, and makes the quantum dot conversion unit 30 easier to adhere to the adhesive film 40, further enhancing the stability of the quantum dot conversion unit 30.
Further, the adhesive film 40 between two adjacent quantum dot conversion units 30 is in contact with the base substrate 10. In this embodiment, each quantum dot conversion unit 30 is correspondingly provided with an adhesive film 40, the adhesive film 40 is disposed on a side of the quantum dot conversion unit 30 away from a sub-pixel, and is used for bearing and fixing the quantum dot conversion unit 30, and a portion of the adhesive film 40 located between two adjacent quantum dot conversion units 30 is in contact with the substrate 10, so that loss of light emitted by each sub-pixel can be further reduced, and a display effect of the display panel is further enhanced.
Example two
Referring to fig. 5 and fig. 1 to 4, a second embodiment of the present invention provides a method for manufacturing a display panel, including:
step S100, providing a substrate 10;
the substrate 10 may be a flexible plastic substrate, a glass substrate, or a quartz substrate. Before the substrate 10 is put into use, it is generally necessary to perform processes such as cleaning and inspection to ensure the quality of the substrate 10.
Step 200, forming m sub-pixels on a substrate base plate 10, wherein m is a positive integer;
for example, m sub-pixels may be formed on the base substrate 10 by a coating-curing method, an ink-jet printing method, a deposition method, an evaporation method, or the like, and the method of forming the sub-pixels on the base substrate 10 is not limited in this embodiment.
Step 300, forming n quantum dot conversion units 30 in a set area of the adhesive film 40, wherein n is a positive integer and is not more than m;
the adhesive film 40 is generally formed in a mold, and after the adhesive film 40 is manufactured, n quantum dot conversion units 30 are formed in a plurality of set areas on the adhesive film 40, and the set areas are uniformly arranged on the adhesive film 40, so that the formed n quantum dot conversion units 30 are also uniformly arranged on the adhesive film 40.
Step 400, arranging the adhesive film 40 formed with n quantum dot conversion units 30 above the substrate base plate 10, wherein the n quantum dot conversion units 30 respectively correspond to the n sub-pixels one by one; and each quantum dot conversion unit 30 is in a convex lens shape, and the light radiation range of each sub-pixel is located within the light conversion range of the corresponding quantum dot conversion unit 30.
In this embodiment, the quantum dot conversion unit 30 is in a convex lens shape, and the quantum dot conversion unit 30 completely covers the corresponding sub-pixels, so as to reduce or avoid the loss of light emitted by the sub-pixels. In addition, the glue film 40 manufactured in this embodiment can be directly taken out and placed on the substrate 10 after the quantum dot conversion unit 30 is formed; alternatively, the adhesive film 40 with the mold may be directly placed on the base substrate 10 without being taken out, and the mold may be removed by heating, etching, or other means without damaging the adhesive film.
In a preferred embodiment, the step of forming the adhesive film 40 in the mold comprises:
providing a die, wherein the die comprises a static die and a movable die, the static die comprises n die cavities, and the movable die comprises n pressure heads in one-to-one correspondence with the n die cavities;
respectively injecting liquid glue into the n die cavities;
closing the die, enabling the pressure head to extend into the die cavity, and cooling the die;
and opening the mold, and forming the adhesive film 40 with the n quantum dot conversion units 30 in the static mold, wherein the adhesive film 40 of the n quantum dot conversion units 30 is a quantum dot layer.
In this embodiment, the mold is used for manufacturing the adhesive film 40, and the mold includes a stationary mold and a movable mold, and in the manufacturing process, liquid adhesive is first injected into n mold cavities of the stationary mold, and then the movable mold is pressed into the stationary mold, so that n pressing heads are respectively and correspondingly pressed into n mold cavities of the stationary mold, and the liquid adhesive in the mold cavities is imprinted; and cooling the mold to cool and solidify the liquid glue in the mold cavity, opening the mold, and taking the movable mold out of the mold cavity of the static mold.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A display panel, comprising: the quantum dot display comprises a substrate base plate, m sub-pixels arranged on the substrate base plate and a quantum dot layer positioned above the substrate base plate; the quantum dot layer comprises n quantum dot conversion units, the n quantum dot conversion units are respectively in one-to-one correspondence with the n sub-pixels, m and n are positive integers, and n is less than or equal to m;
the shape of each quantum dot conversion unit is convex lens shape, and the light radiation range of each sub-pixel is positioned in the light conversion range of the corresponding quantum dot conversion unit.
2. The display panel of claim 1, wherein the focal point of each quantum dot conversion unit coincides with the center of the light emitting surface of the corresponding sub-pixel.
3. The display panel of claim 1 wherein m of the sub-pixels are each blue sub-pixels, n quantum dot conversion units comprise red quantum dot conversion units and green quantum dot conversion units, and n < m.
4. The display panel according to claim 1, wherein m of the sub-pixels are each a white sub-pixel, wherein n quantum dot conversion units comprise a red quantum dot conversion unit, a green quantum dot conversion unit, and a blue quantum dot conversion unit, and wherein n is m.
5. The display panel according to claim 1, wherein each quantum dot conversion unit has a semicircular cross-sectional shape in a plane perpendicular to the substrate base plate.
6. The display panel according to claim 5, wherein the quantum dot layer further comprises an adhesive film for carrying the n quantum dot conversion units.
7. The display panel of claim 6, wherein the shape of the region of the adhesive film corresponding to each of the quantum dot conversion units is similar to the shape of the quantum dot conversion unit.
8. The display panel according to claim 7, wherein the adhesive film between two adjacent quantum dot conversion units is in contact with the substrate base plate.
9. A method for manufacturing a display panel is characterized by comprising the following steps:
providing a substrate base plate;
forming m sub-pixels on the substrate base plate, wherein m is a positive integer;
forming a glue film in a mould;
forming n quantum dot conversion units in a set area of the adhesive film, wherein n is a positive integer and is less than or equal to m;
arranging an adhesive film on which n quantum dot conversion units are formed above the substrate base plate, wherein the n quantum dot conversion units are respectively in one-to-one correspondence with the n sub-pixels; and the shape of each quantum dot conversion unit is convex lens shape, and the light radiation range of each sub-pixel is positioned in the light conversion range of the corresponding quantum dot conversion unit.
10. The method of claim 9, wherein the step of forming the adhesive film in the mold comprises:
providing a die, wherein the die comprises a static die and a movable die, the static die comprises n die cavities, and the movable die comprises n pressure heads in one-to-one correspondence with the n die cavities;
respectively injecting liquid glue into the n die cavities;
the die is closed, so that the pressure head extends into the die cavity, and the die is cooled;
and opening the die, and forming an adhesive film with n quantum dot conversion units in the static die, wherein the adhesive film with the n quantum dot conversion units is a quantum dot layer.
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| CN201811458335.2A CN111261663A (en) | 2018-11-30 | 2018-11-30 | Display panel and manufacturing method thereof |
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| CN201811458335.2A CN111261663A (en) | 2018-11-30 | 2018-11-30 | Display panel and manufacturing method thereof |
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| CN (1) | CN111261663A (en) |
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| CN112736209A (en) * | 2020-12-30 | 2021-04-30 | 广东聚华印刷显示技术有限公司 | Quantum dot light-emitting diode, preparation method thereof and display panel |
| CN112885247A (en) * | 2021-01-20 | 2021-06-01 | 深圳市华星光电半导体显示技术有限公司 | Display panel, manufacturing method thereof and display module |
| WO2023035297A1 (en) * | 2021-09-09 | 2023-03-16 | 深圳市华星光电半导体显示技术有限公司 | Color filter and manufacturing method therefor, and display panel |
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| CN112736209A (en) * | 2020-12-30 | 2021-04-30 | 广东聚华印刷显示技术有限公司 | Quantum dot light-emitting diode, preparation method thereof and display panel |
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