CN112151571A - Color conversion component, display panel and manufacturing method of color conversion component - Google Patents

Abstract

Embodiments of the present invention provide a color conversion component, a display panel, and a method for manufacturing the color conversion component. The color conversion component includes: a substrate; a scattering layer disposed on the substrate; a light collimation layer disposed on a side of the scattering layer away from the substrate, The light collimation layer includes a plurality of light collimation units; the color conversion film includes a light blocking layer, a plurality of channels passing through the light blocking layer, and color conversion units distributed in at least part of the channels; wherein, the light collimation units correspond to color conversion unit settings. The invention can not only limit the emitted light of the color conversion unit within a certain angle through the collimating layer to prevent the viewing angle deviation, but also can ensure that the emitted light of the substrate has a larger viewing angle through the scattering layer, thereby improving the display effect.

Description

Color conversion component, display panel and manufacturing method of color conversion component

technical field

The present invention relates to the technical field of display devices, and in particular, to a color conversion component, a display panel and a manufacturing method of the color conversion component.

Background technique

Flat display devices such as Liquid Crystal Display (LCD) devices, Organic Light Emitting Display (OLED) devices, and display devices using Light Emitting Diode (LED) devices have high image quality and power saving. It is widely used in various consumer electronic products such as mobile phones, TVs, personal digital assistants, digital cameras, notebook computers, desktop computers, etc., and has become the mainstream of display devices.

The display device can implement the display supporting color patterns through various colorization schemes. In some embodiments, colorization is achieved by adding a layer of color filter on the light-emitting substrate. However, in the color filter in the prior art, light mixing occurs between the light emitting units, which leads to the problem of viewing angle deviation.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a color conversion component, a display panel, and a manufacturing method of the color conversion component, aiming at solving the problem of viewing angle deviation.

One aspect of the embodiments of the present invention provides a color conversion component, including: a substrate; a scattering layer, disposed on the substrate; a light collimation layer, disposed on a side of the scattering layer away from the substrate, the light collimation layer including a plurality of light collimators unit; a color conversion film, comprising a light blocking layer, a plurality of channels penetrating the light blocking layer, and color conversion units distributed in at least part of the channels; wherein at least some of the light collimation units are disposed corresponding to the color conversion units.

According to one aspect of the present invention, the light collimation unit includes two or more blocking walls extending along the thickness direction of the color conversion component, a light exit space formed between adjacent blocking walls, and an opening communicating with the light exit space, through which the color conversion unit passes through. The light exits from the opening through the light exit space.

According to one aspect of the present invention, the light exit space is formed by being enclosed by two or more blocking walls, and one or more light exit spaces are enclosed by the two or more blocking walls corresponding to the color conversion unit.

According to one aspect of the present invention, the orthographic projections of the two or more barrier walls on the substrate are striped, and the two or more barrier walls include two or more first barrier walls distributed at intervals and enclosed on the periphery of the two or more first barrier walls the second barrier wall;

Alternatively, the orthographic projection of the two or more barrier walls on the substrate is in a grid shape, and the two or more barrier walls include a first barrier wall extending along the first direction and a second barrier wall extending along the second direction, and the two or more barrier walls include a first barrier wall extending along the first direction and a second barrier wall extending along the second direction. The first barrier walls are spaced apart, and the two or more second barrier walls are spaced apart, and the first direction, the second direction and the thickness direction intersect in pairs;

Or, the orthographic projections of the plurality of barrier walls on the substrate are enclosed in a honeycomb shape;

Alternatively, the two or more blocking walls are a plurality of mutually independent columnar bodies, and the orthographic projection of the two or more blocking walls on the substrate is a circle or a polygon.

According to an aspect of the present invention, the extended thickness of the barrier wall is 0.5 μm˜5 μm;

And/or, the minimum distance between two adjacent barrier walls is 0.3 μm˜10 μm.

According to one aspect of the present invention, the blocking wall is made of light-absorbing material or light-reflecting material;

Alternatively, the outer surface of the barrier wall is coated with a light-absorbing film or a light-reflecting film;

Alternatively, the barrier walls contain scattering particles;

Alternatively, the light exit space is filled with a first material, the blocking wall is made of a second material, and the refractive index of the first material is greater than that of the second material.

According to one aspect of the present invention, the scattering layer has scattering particles in it;

And/or, the scattering layer includes a plurality of scattering structures protruding from the base toward the light collimating structure, preferably, the cross-section of the scattering structures is any one of arc, zigzag, polygon and combinations thereof.

According to an aspect of the present invention, it further comprises a Bragg reflection layer disposed between the scattering layer and the color conversion film;

Preferably, the reflective layer is disposed between the scattering layer and the light collimation layer.

Another aspect of the embodiments of the present invention also provides a display panel, including:

a driving backplane, a plurality of light sources are arranged on the driving backplane;

The above-mentioned color conversion components are arranged corresponding to the driving backplane, so that the multiple channels and the multiple light sources are respectively arranged correspondingly.

Another aspect of the embodiments of the present invention also provides a method for manufacturing a color conversion component, comprising:

A substrate is provided on which a scattering layer is formed;

forming a first leveling layer on the scattering layer, and forming a light collimation layer on the first leveling layer, the light collimation layer including a plurality of light collimation units;

Continue to form a second flattening layer on the first flattening layer, and the thickness of the second flattening layer is greater than or equal to the extension length of the light collimation unit along the thickness direction;

A color conversion film is formed on the second leveling layer. The color conversion film includes a light blocking layer, a plurality of channels penetrating the light blocking layer, and color conversion units distributed in at least part of the channels.

In the present invention, the color conversion component includes a substrate, a scattering layer, a light collimation layer and a color conversion film, so the light transmitted by the color conversion film will pass through the light collimation layer and the scattering layer in sequence, and finally strike the substrate. The outgoing light passing through the color conversion unit has an excessively large outgoing angle, which leads to the problem of easy light mixing. However, when the outgoing light passing through the color conversion unit passes through the collimation layer, the outgoing light can be limited to a certain angle by the function of the collimating structure, preventing light mixing and viewing angle deviation, and ensuring that the outgoing spectrum under different viewing angles has a higher consistency. Further, when the outgoing light passes through the scattering layer, the angle of the outgoing light on the substrate can be increased, thereby increasing the viewing angle. Therefore, the present invention can not only limit the outgoing light passing through the color conversion unit to a certain angle through the collimating layer to prevent viewing angle deviation, but also can ensure that the outgoing light from the substrate has a larger viewing angle through the scattering layer, thereby improving the display effect.

Description of drawings

Other features, objects and advantages of the present invention will become more apparent upon reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar features.

1 is a schematic structural diagram of a color conversion assembly according to an embodiment of the present invention;

2 is a schematic view of the structure of a scattering layer of a color conversion component according to an embodiment of the present invention;

3 is a schematic diagram of the structure of a scattering layer of a color conversion component according to another embodiment of the present invention;

4 is a schematic diagram of a collimation layer structure of a color conversion assembly according to an embodiment of the present invention;

5 is a schematic diagram of a collimation layer structure of a color conversion assembly according to another embodiment of the present invention;

6 is a schematic diagram of a collimation layer structure of a color conversion assembly according to another embodiment of the present invention;

7 is a schematic diagram of a collimation layer structure of a color conversion assembly according to another embodiment of the present invention;

8 is a schematic diagram of a collimation layer structure of a color conversion component according to still another embodiment of the present invention;

9 is a schematic diagram of a collimation layer structure of a color conversion assembly according to another embodiment of the present invention;

10 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

11 is a schematic flowchart of a method for manufacturing a color conversion component according to an embodiment of the present invention;

12a to 12j are schematic diagrams of a molding process flow of a color conversion component according to an embodiment of the present invention.

Description of reference numbers:

100, base;

200, scattering layer; 210, scattering structure; 220, scattering particles;

300, light collimation layer; 310, blocking wall; 311, first blocking wall; 312, second blocking wall; 320, light exit space;

400, color conversion film; 410, barrier layer; 411, channel; 420, color conversion unit;

500. Reflective layer;

600, light source;

700. Drive backplane;

810, a first leveling layer; 820, a second leveling layer; 830, a third leveling layer.

Detailed ways

Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the invention. In the drawings and the following description, at least some well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention; and, the dimensions of some structures may be exaggerated for clarity. Furthermore, the features, structures or characteristics described below may be combined in any suitable manner in one or more embodiments.

In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means more than two; the terms "upper", "lower", "left", "right", "inner", " The orientation or positional relationship indicated by "outside" is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a reference to the present invention. Invention limitations. Furthermore, the terms "first," "second," etc. are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

The orientation words appearing in the following description are all directions shown in the drawings, and do not limit the specific structures of the embodiments of the present invention. In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or Connected integrally; either directly or indirectly. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific conditions.

In order to better understand the present invention, the following describes in detail the color conversion assembly, the display panel and the color conversion assembly according to the embodiments of the present invention with reference to FIGS. 1 to 12j .

1 is a color conversion assembly provided by an embodiment of the present invention, including: a substrate 100; a scattering layer 200, disposed on the substrate 100; The layer 300 includes a plurality of light-collimating units; the color conversion film 400 includes a light-blocking layer 410, a plurality of channels 411 penetrating the light-blocking layer 410, and color conversion units 420 in at least part of the channels 411; The straight unit is set corresponding to the color conversion unit 420 . Preferably, the light collimation unit is provided corresponding to the color conversion unit 420 .

In the present invention, the color conversion component includes the substrate 100, the scattering layer 200, the light collimation layer 300 and the color conversion film 400, so the light transmitted by the color conversion film 400 will pass through the light collimation layer 300 and the scattering layer 200 in sequence, and finally Shoot towards the substrate 100 . When only the color conversion unit 420 is provided, the outgoing light passing through the color conversion unit 420 has an excessively large outgoing angle, which leads to the problem of easy light mixing. However, when the outgoing light of the color conversion unit 420 passes through the light collimation layer 300, the outgoing light can be limited within a certain angle by the function of the light collimation structure, preventing light mixing and viewing angle deviation, and ensuring that the outgoing spectrum under different viewing angles has higher consistency. Further, when the outgoing light passes through the scattering layer 200, the angle of the outgoing light on the substrate 100 can be increased, thereby increasing the viewing angle. Therefore, the present invention can not only limit the output light of the color conversion unit 420 to a certain angle through the light collimation layer 300 to prevent the viewing angle deviation, but also ensure that the emitted light of the substrate 100 has a larger viewing angle through the scattering layer 200, thereby improving the display effect.

The substrate 100 can be arranged in various manners. The substrate 100 may be a rigid cover plate such as glass, or the substrate 100 may be a flexible cover plate or the like.

There are various ways of disposing the scattering layer 200 . For example, as shown in FIG. 2 , the scattering layer 200 has scattering particles 220 therein. When the outgoing light passes through the scattering particles 220, scattering occurs, so as to achieve the purpose of scattering. There are many ways to set the scattering particles 220. For example, the scattering particles 220 are organic polymer microspheres, such as polymethyl methacrylate, polysiloxane, etc.; or the scattering particles 220 are inorganic microspheres, such as silver nanoparticles, Silica, titania microspheres, etc. The scattering layer 200 may be prepared by inkjet printing, spin coating, or blade coating processes.

Alternatively, please refer to FIG. 3 together, in other optional embodiments, the scattering layer 200 includes a plurality of scattering structures 210 which are protruded from the substrate 100 toward the light collimating structure. When the outgoing light passes through the scattering structure 210, it will be reflected by various surfaces of the scattering structure 210, thereby increasing the outgoing angle.

The scattering structure 210 can be arranged in various manners. For example, the scattering structure 210 is a lens structure, and the cross section of the scattering structure 210 along the thickness direction is any one of arc, zigzag, polygon and combinations thereof. Further preferably, the scattering structures 210 are spherical or hemispherical, and a plurality of scattering structures 210 are distributed in an array on the surface of the substrate 100 , so as to ensure the consistency of scattering effects of the scattering structures 210 everywhere on the substrate 100 . The scattering structure 210 can be fabricated by a process such as nano-imprinting. In other preferred embodiments, the substrate 100 is made of glass, and the shape of the scattering structure 210 is irregular.

There are many ways to set the light collimation unit. In some optional embodiments, the light collimation unit includes two or more blocking walls 310, phase and spacer walls 310 extending along the thickness direction of the color conversion assembly (Z direction in FIG. 1 ). The light exit space 320 and the opening communicated with the light exit space 320 are formed between the adjacent blocking walls 310 , so that the light passing through the color conversion unit 420 is emitted from the opening through the light exit space 320 .

The thickness direction is the stacking direction of each layer structure in the color conversion component, and each layer structure in the color conversion component is stacked along the thickness direction.

In these optional embodiments, the outgoing light of the color conversion unit 420 passes through the light outgoing space 320. When the outgoing light angle of the color conversion unit 420 is too large, it will be blocked by the blocking wall 310, so that the outgoing light that meets the requirements of the outgoing angle will be blocked from The openings are directed towards the scattering layer 200 , which effectively prevents the color mixing problem caused by the excessively large incident light angle of the scattering layer 200 .

The light exit space 320 can be arranged in various ways. For example, the light exit space 320 is formed by two or more barrier walls 310 arranged at intervals. At this time, the light exit space 320 also has a gap in the direction perpendicular to the thickness direction of the color conversion component.

Preferably, the light exit space 320 is formed by being surrounded by two or more blocking walls 310 , and the opening and the color conversion unit 420 are disposed opposite to each other. The outgoing light of the color conversion unit 420 is made to be emitted from the opening and not emitted from other positions, which further ensures that the outgoing light of the light collimation structure has a small outgoing angle.

The number of the light exit spaces 320 is not limited, and one or more light exit spaces 320 are enclosed by two or more blocking walls 310 corresponding to the color conversion unit 420 . Preferably, the two or more blocking walls 310 are formed with a plurality of light exit spaces 320 corresponding to the color conversion unit 420 , which can not only reduce the angle of light emitted from the light collimation layer 300 , but also ensure that the color conversion units 420 are different from each other. The angles of the outgoing light from the light collimation layer 300 at the positions tend to be the same, so as to ensure the light outgoing effect.

The shape of the barrier walls 310 is not limited here. As shown in FIG. 4 to FIG. 6 , the orthographic projection of the two or more barrier walls 310 on the substrate 100 along the thickness direction is striped, and the two or more barrier walls 310 include a first barrier The wall 311 and the second blocking wall 312, two or more first blocking walls 311 are arranged at intervals, and the second blocking wall 312 surrounds the outer periphery of the two or more first blocking walls 311, so that the first blocking wall 311 and the second blocking wall 311 are separated. The wall 312 encloses the light exit space 320 . Preferably, the two or more first blocking walls 311 are equally spaced apart to improve the size consistency between the light exit spaces 320 , thereby improving the consistency of the exit light angles of the light collimation layer 300 .

The extending direction of the first blocking wall 311 and the extending length of the two or more first blocking walls 311 are not limited herein. For example, the color conversion unit 420 is rectangular, and the first blocking wall 311 is formed to extend along the length direction or the width direction of the color conversion unit 420 . The extension length of the blocking wall 310 refers to the longest distance that the blocking wall 310 extends on a plane perpendicular to the thickness direction.

For example, as shown in FIG. 4 , the first blocking walls 311 are formed to extend along the length direction of the color conversion unit 420 , and two or more first blocking walls 311 are arranged at intervals along the width direction of the color conversion unit 420 . In this case, there are two second blocking walls 312 , and the two second blocking walls 312 are respectively disposed at both ends of the two or more first blocking walls 311 along the length direction of the color conversion unit 420 .

Alternatively, as shown in FIG. 5 , the first blocking walls 311 are formed to extend along the width direction of the color conversion unit 420 , and two or more first blocking walls 311 are arranged at intervals along the length direction of the color conversion unit 420 . At this time, there are two second blocking walls 312 , and the two second blocking walls 312 are respectively disposed at both ends of the two or more first blocking walls 311 along the width direction of the color conversion unit 420 .

Alternatively, as shown in FIG. 6 , the first blocking walls 311 are formed to extend along the diagonal of the color conversion unit 420 , and two or more first blocking walls 311 are arranged at intervals. At this time, there are four second blocking walls 312 , and the four second blocking walls 312 are respectively disposed on the outer peripheral side of the two or more first blocking walls 311 .

In some other optional embodiments, as shown in FIG. 7 , the orthographic projection of the two or more blocking walls 310 on the substrate 100 in the thickness direction is in a grid shape, and the two or more blocking walls 310 are formed by extending along the first direction. The first blocking wall 311 and the second blocking wall 312 extending along the second direction, two or more first blocking walls 311 are spaced apart, and two or more second blocking walls 312 are spaced apart. The direction and the thickness direction intersect in pairs.

Further preferably, two or more first blocking walls 311 are distributed at equal intervals, and/or two or more second blocking walls 312 are equally spaced, so as to further improve the uniformity of size among the light exit spaces 320 .

As shown in FIG. 9 , in some other optional embodiments, the orthographic projection of the plurality of barrier walls 310 on the substrate 100 along the thickness direction is enclosed in a honeycomb shape. Alternatively, as shown in FIG. 8 , the two or more blocking walls 310 are a plurality of mutually independent columnar bodies, and the orthographic projection of the blocking walls 310 on the substrate 100 along the thickness direction is a circle or a polygon. The consistency of the size of each light exit space 320 is ensured, and the consistency of the exit angle of the exit light from the light collimation layer 300 is improved.

The extended thickness of the blocking wall 310 can be selected in various ways. Preferably, the extended thickness of the blocking wall 310 is 0.5 μm˜5 μm. The blocking wall 310 is prevented from being too thick to affect the light output, and the blocking wall 310 is prevented from being too thin to reduce the light collimation effect. The extending thickness of the blocking wall 310 refers to the shortest distance that the blocking wall 310 extends on a plane perpendicular to the thickness direction. Of course, the extended thickness of the blocking wall 310 can also be selected in other ways.

The size of the light exit space 320 can be selected in various ways. Preferably, the minimum distance between two adjacent blocking walls 310 is 0.3 μm˜10 μm, that is, the minimum width of the light exit space 320 is 0.3 μm˜10 μm. Preventing the light output space 320 from being too small to affect the light output effect, and preventing the light output space 320 from being too large to affect the light collimation effect. Of course, the size of the light emitting space 320 can also be selected in other ways.

There are many choices for the manufacturing material of the blocking wall 310. Preferably, the blocking wall 310 is made of a light-absorbing material, such as a black light-absorbing material. When the outgoing light with an angle greater than a certain angle reaches the blocking wall 310 , it will be absorbed by the blocking wall 310 to prevent the outgoing light with an angle greater than a certain angle from being emitted from the opening. Alternatively, the blocking wall 310 is made of reflective material, such as reflective metal. The outgoing light with an angle greater than a certain angle can be continuously reflected by the blocking wall 310 in the outgoing space to be outgoing light meeting the requirement of the outgoing angle. Alternatively, the outer surface of the blocking wall 310 is coated with a light absorption film or a light reflection film, so as to achieve the purpose of light absorption or reflection. Of course, other materials can be selected for the manufacturing material of the blocking wall 310 .

In other optional embodiments, the blocking wall 310 has scattering particles 220 therein. When the light with an angle larger than a certain angle is emitted to the scattering particles 220, it will be scattered, so the emitted light with a larger angle than a certain angle can be continuously scattered by the blocking wall 310 in the emission space to meet the emission angle requirement.

In some other optional embodiments, the light exit space 320 is filled with a first material, the blocking wall 310 is made of a second material, and the refractive index of the first material is greater than that of the second material. Light propagating upwards within a certain angle can be totally reflected in the high refractive index material to propagate upwards. Light greater than a certain angle will not be totally reflected, but will be emitted laterally and finally absorbed by the light blocking layer 410 of the color conversion film 400 , so that the emitted light can maintain a certain light collimation.

When the light exit space 320 is filled with the first material and the blocking wall 310 is made of the second material, the distance between the two blocking walls 310 is greater than the extended thickness of the blocking wall 310 . That is, the size of the light exit space 320 is larger than the size of the blocking wall 310 , so that more light is reflected in the high refractive index material and the light output is increased.

The color conversion film 400 can be arranged in various ways. For example, when the color conversion film 400 is applied to a display panel, the channels 411 on the color conversion film 400 are distributed in an array, and the channels 411 are arranged corresponding to each sub-pixel of the display panel.

When the color conversion film 400 is applied to the display panel, the color conversion units 420 are distributed in at least part of the channels 411 according to a predetermined rule according to the pixel arrangement of the display panel. The color conversion unit 420 can be set in various ways. For example, the color conversion unit 420 includes a red conversion unit and a green conversion unit. The red conversion unit can convert the light of the light source 600 into red light, and the green conversion unit can convert the light of the light source 600 into red light. green light. The color conversion unit 420 may include, for example, quantum dots (QDs), which emit red light or green light when excited by the light emitted by the light source 600 .

An example of the predetermined rule is a pixel arrangement rule, and the red and green color conversion units 420 are correspondingly distributed in the channel 411 according to the positions of the red and green sub-pixels in the pixel arrangement rule.

The arrangement of the color conversion component is not limited to this. For example, the color conversion component also includes a Bragg reflection layer 500 disposed between the scattering layer 200 and the color conversion film 400 . The Bragg reflection layer 500 can transmit light of a specified color, and reflect the light in the preset wavelength band back to the color conversion unit 420 , thereby improving the absorption and conversion rate of the light source 600 by the color conversion unit 420 .

The reflective layer 500 can be arranged in various ways. For example, when the color conversion component is applied to the display panel in which the light source 600 is the blue light source 600, the blue light is converted into red light or green light through the color conversion unit 420. The absorption of blue light is limited, so some of the blue light will leak out. The Bragg reflector can reflect the blue light back to the color conversion unit 420 to improve the absorption and conversion rate of the blue light by the color conversion unit 420 .

The location of the reflective layer 500 can be selected in various ways. The reflective layer 500 can be arranged between the scattering layer 200 and the light collimation layer 300 , or the reflective layer 500 can be arranged between the light collimation layer 300 and the color conversion film 400 . Preferably, the reflection layer 500 is disposed between the scattering layer 200 and the light collimation layer 300 . In these embodiments, when the outgoing light passes through the light collimation layer 300 , the light whose outgoing angle meets the requirement of the outgoing angle exits and enters the reflective layer 500 , so that the incident angle and optical path of the light entering the reflective layer 500 are relatively consistent, thereby improving reflection. The reflection effect of the layer 500 improves the filtering effect of the reflection layer 500 on the light emitted by the light source 600, and further avoids color shift. For example, when the light emitted by the light source 600 is blue, the reflective layer 500 disposed between the scattering layer 200 and the light collimation layer 300 can improve the filtering effect of the reflective layer 500 on blue light.

Please also refer to FIG. 10 , a second embodiment of the present invention further provides a display panel including the color conversion component of any of the above embodiments. Since the display panel of the embodiment of the present invention includes the above-mentioned color conversion component, the display panel of the embodiment of the present invention has the beneficial effects of the above-mentioned color conversion component, which will not be repeated here.

The setting method of the display panel is not limited to this. The display panel also includes a driving backplane 700. The driving backplane 700 is provided with a plurality of light sources 600 distributed in an array. , so that the light emitted by the light source 600 can be emitted through the channel 411 or the color conversion unit in the channel 411 .

A third embodiment of the present invention further provides a display device, including the above-mentioned display panel. Display devices in the embodiments of the present invention include, but are not limited to, mobile phones, personal digital assistants (Personal Digital Assistant, PDA for short), tablet computers, electronic paper books, televisions, access control, smart fixed phones, consoles, and other devices with display functions. equipment,. Since the display device of the present invention includes the above-mentioned display panel, the display device of this embodiment has the beneficial effects of the above-mentioned display panel, which will not be repeated here.

Please refer to FIG. 11 together, the fourth embodiment of the present invention also provides a method for manufacturing a color conversion component, including:

Step S01 : a substrate 100 is provided, and a scattering layer 200 is formed on the substrate 100 .

Step S02 : forming a first flattening layer 810 on the scattering layer 200 , and forming a light collimation layer 300 on the first flattening layer 810 .

The light collimation layer 300 includes a plurality of light collimation units, and the light collimation units are used to limit the angle of the outgoing light.

Step S03 : Continue to form a third leveling layer 830 on the first leveling layer 810 .

In order to ensure the flatness of the surface of the third flattening layer 830 away from the first flattening layer 810 , the thickness of the third flattening layer 830 is greater than or equal to the extension length of the light collimation unit along the thickness direction.

Step S04 : forming the color conversion film 400 on the second leveling layer 820 .

The color conversion film 400 includes a light blocking layer 410 , a plurality of channels 411 penetrating the light blocking layer 410 , and color conversion units 420 distributed in at least part of the channels 411 . The color conversion unit 420 and the light collimation unit are correspondingly arranged, so that the light collimation unit can limit the outgoing light of the color conversion unit 420 .

The manufacturing method of the color conversion component is not limited to this, in some optional embodiments, before step S02, it further includes: forming the Bragg reflection layer 500 on the first leveling layer 810, and continuing to form the second leveling layer 820, the second leveling layer 820 The thickness of the flattening layer 820 is greater than the thickness of the Bragg reflection layer 500 . At this time, step S03 includes: continuing to form a third leveling layer 830 on the second leveling layer 820 .

Taking the color conversion assembly shown in FIG. 1 as an example, please refer to FIGS. 12a to 12j together to briefly describe the molding process of the color conversion assembly, including:

In the first step, as shown in FIG. 12a, a substrate 100 is provided. Preferably, it is a glass substrate 100 .

In the second step, as shown in FIG. 12 b , the scattering layer 200 is formed on the substrate 100 . Preferably, the scattering layer 200 is a spherical scattering structure 210 distributed in an array.

In the third step, as shown in FIG. 12 c , a first flattening layer 810 is formed on the scattering layer 200 .

In the fourth step, as shown in FIG. 12d , the Bragg reflection layer 500 is formed on the first leveling layer 810 .

Preferably, the Bragg reflection layer 500 may be provided only for the area that needs reflection. For example, when the light source 600 is the blue light source 600, the Bragg reflection layer 500 may be provided only for the red and green sub-pixels.

In the fifth step, as shown in FIG. 12e , a second planarization layer 820 is formed on the Bragg reflection layer 500 . The thickness of the second flattening layer 820 is greater than or equal to the thickness of the Bragg reflection layer 500 .

In the sixth step, as shown in FIG. 12f , the light collimation layer 300 is formed on the second leveling layer 820 .

The light collimation unit of the light collimation layer 300 includes two or more blocking walls 310 extending along the thickness direction of the color conversion component, a light exit space 320 formed between adjacent blocking walls 310, and an opening communicating with the light exit space 320, so that the The light passing through the color conversion unit 420 is emitted to the scattering layer 200 from the opening through the light exit space 320 .

The seventh step, as shown in FIG. 12g , continues to form a third leveling layer 830 on the second leveling layer 820 , and the thickness of the third leveling layer 830 is greater than that of the light collimating layer 300 .

In the eighth step, as shown in FIG. 12h, a patterned light blocking layer 410 is formed on the third leveling layer 830, and the light blocking layer 410 includes a channel 411 disposed therethrough.

In the ninth step, as shown in FIG. 12i, a color conversion unit 420 is formed in at least part of the channel 411 to form a color conversion component.

In the process of forming the display panel using the color conversion component, it may further include:

The tenth step, as shown in FIG. 12j , provides a driving backplane 700 and distributes a plurality of light sources 600 in an array on the driving backplane 700 .

Finally, the driving backplane 700 with the light source 600 and the color conversion component are bonded together by filling glue or the like to form a display panel. There are many ways to set the filling glue. In order to ensure the light transmission effect, preferably, the filling glue is a transparent heat-curing or UV-curing organic polymer, such as polymethyl methacrylate, polysiloxane, polyimide Wait.

The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. For example, the algorithms described in particular embodiments may be modified without departing from the basic spirit of the invention in system architecture. Accordingly, the present embodiments are to be considered in all respects as illustrative and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and falls within the meaning and equivalents of the claims. All changes within the scope are thus included in the scope of the invention.

Claims (10)

1. A color conversion assembly comprising:

a substrate;

the scattering layer is arranged on the substrate;

the light collimation layer is arranged on one side, far away from the substrate, of the scattering layer and comprises a plurality of light collimation units;

the color conversion film comprises a light blocking layer, a plurality of channels penetrating through the light blocking layer and color conversion units distributed in at least part of the channels;

wherein at least part of the light collimating unit is arranged corresponding to the color conversion unit.

2. The color conversion assembly of claim 1, wherein the light collimating unit comprises two or more barrier walls extending along the thickness direction of the color conversion assembly, a light-emitting space formed between adjacent barrier walls, and an opening communicating with the light-emitting space, and light passing through the color conversion unit exits through the opening through the light-emitting space.

3. The color conversion assembly of claim 2, wherein the light-emitting space is defined by two or more barrier walls, and one or more light-emitting spaces are defined by the two or more barrier walls corresponding to the color conversion unit.

4. The color conversion assembly of claim 3,

the orthographic projections of the more than two barrier walls on the substrate are in a stripe shape, and the more than two barrier walls comprise more than two first barrier walls which are distributed at intervals and second barrier walls which surround the peripheries of the more than two first barrier walls;

or, orthographic projections of more than two barrier walls on the substrate are in a grid shape, the more than two barrier walls comprise first barrier walls extending along a first direction and second barrier walls extending along a second direction, the more than two first barrier walls are distributed at intervals, the more than two second barrier walls are distributed at intervals, and the first direction, the second direction and the thickness direction are intersected in pairs;

or the orthographic projections of the barrier walls on the substrate are enclosed into a honeycomb shape;

or, the two or more barrier walls are a plurality of mutually independent columnar bodies, and the orthographic projection of the barrier walls on the substrate is circular or polygonal.

5. The color conversion assembly according to any one of claims 2 to 4,

the extending thickness of the barrier wall is 0.5-5 μm;

and/or the minimum distance between two adjacent barrier walls is 0.3-10 mu m.

6. The color conversion assembly according to any one of claims 2 to 4,

the barrier wall is made of light absorption materials or light reflection materials;

or the outer surface of the barrier wall is coated with a light absorption film or a light reflection film;

or, scattering particles are contained in the barrier walls;

or, the light-emitting space is filled with a first material, the barrier wall is made of a second material, and the refractive index of the first material is greater than that of the second material.

7. The color conversion assembly according to any one of claims 1 to 4,

scattering particles are arranged in the scattering layer;

and/or the scattering layer comprises a plurality of scattering structures which are convexly arranged from the substrate towards the light collimation structure, and preferably, the cross section of each scattering structure along the thickness direction is any one of arc, zigzag, polygon and combination thereof.

8. The color conversion assembly according to any one of claims 1 to 4, further comprising a Bragg reflection layer disposed between the scattering layer and the color conversion film;

preferably, the reflective layer is disposed between the scattering layer and the light collimating layer.

9. A display panel, comprising:

the driving back plate is provided with a plurality of light sources;

the color conversion assembly of any of claims 1-8, and said driving backplane being arranged to correspond to a plurality of said channels and a plurality of said light sources, respectively.

10. A method of manufacturing a color conversion package, comprising:

providing a substrate, and forming a scattering layer on the substrate;

forming a first planarization layer on the scattering layer and a light-collimating layer on the first planarization layer, the light-collimating layer comprising a plurality of light-collimating units;

continuing to form a second planarization layer on the first planarization layer, the second planarization layer having a thickness greater than or equal to an extension of the light collimating unit in the thickness direction;

forming a color conversion film on the second planarization layer, the color conversion film including a light blocking layer, a plurality of channels through the light blocking layer, and color conversion units distributed within at least some of the channels.

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