Color film substrate, preparation method thereof and display panel

Abstract

The application belongs to the field of display panels, and provides a color film substrate, a preparation method thereof and a display panel. The color film substrate comprises a first substrate and a color film layer located on one side of the first substrate. The color film layer has a plurality of light transmission holes. The extension direction of the light transmission holes forms an acute angle with the first substrate. The color film layer comprises a plurality of color resist. The plurality of light transmission holes comprises a first light transmission hole located on the color resist. In the use process of the display panel provided with the color film substrate, a part of ambient light can pass through the color film layer through the light transmission hole and irradiate the display substrate. The ambient light irradiating the display substrate is reflected and irradiates the color resist and transmits. The light emitted by the display substrate and the light transmitted by the color resist are superimposed, thereby enhancing the display brightness of the display panel. The stronger the ambient light, the stronger the ambient light entering the display panel through the light transmission hole, and the greater the display brightness of the display panel. The display brightness of the display panel can change with the intensity change of the ambient light.

Description

Technical Field

[0001] The present application relates to the field of display panels, and in particular to a color film substrate, a preparation method thereof, and a display panel. Background Art

[0002] Display panels are widely used in electronic devices. Common display panels include liquid crystal display (LCD), organic light-emitting diode (OLED) display panels, and micro light-emitting diode (MicroLED) display panels.

[0003] The intensity of ambient light has a significant impact on the display effect of the display panel. When the intensity of ambient light is strong, it may be difficult for a user to clearly see the image displayed on the display panel. Summary of the Invention

[0004] The embodiments of the present application provide a color film substrate and a method for preparing the same, and a display panel, which can help the display panel change the display brightness based on the intensity of ambient light.

[0005] A first aspect of an embodiment of the present application provides a color filter substrate, the color filter substrate comprising:

[0006] a first substrate;

[0007] A color filter layer is located on one side of the first substrate, the color filter layer has multiple light-transmitting holes, the extension direction of the light-transmitting holes forms an acute angle with the first substrate, the color filter layer includes multiple color resists, and the multiple light-transmitting holes include a first light-transmitting hole located in the color resist.

[0008] In some examples, an orthographic projection of one end of the light-transmitting hole on the first substrate is located outside an orthographic projection of the other end of the light-transmitting hole on the first substrate.

[0009] In some examples, the angle between the extension direction of the light-transmitting hole and the first substrate is no greater than 60°.

[0010] In some examples, the color filter substrate further includes at least one of the following:

[0011] an antireflection film, located on one side of the color filter layer;

[0012] The transmittance-enhancing liquid is located in the light-transmitting hole.

[0013] In some examples, the color filter layer further includes a plurality of black matrices, and the plurality of light-transmitting holes further include a second light-transmitting hole located in the black matrices.

[0014] In some examples, a reflective layer is provided on the wall of the second light-transmitting hole.

[0015] In some examples, the color filter substrate further includes at least one of the following:

[0016] a first diffuse reflection layer, wherein the first diffuse reflection layer is located on one side of the black matrix;

[0017] The electrotransparent layer is located on one side of the black matrix.

[0018] A second aspect of the embodiments of the present application further provides a method for preparing a color filter substrate, the method comprising:

[0019] forming a color filter layer on one side of the first substrate, wherein the color filter layer includes a plurality of color resists distributed in an array;

[0020] A plurality of light-transmitting holes are formed in the color filter layer. The extending directions of the light-transmitting holes form an acute angle with the first substrate. The plurality of light-transmitting holes include a first light-transmitting hole located in the color filter layer.

[0021] A third aspect of the embodiments of the present application further provides a display panel, comprising a display substrate and any one of the color filter substrates described in the first aspect, wherein the display substrate and the color filter substrate are arranged opposite to each other.

[0022] In some examples, the display substrate includes a second substrate, a second diffuse reflection layer, and a plurality of light-emitting units, wherein the plurality of light-emitting units are arrayed on a side of the second substrate close to the color film substrate, and the second diffuse reflection layer is located between adjacent light-emitting units.

[0023] In a first aspect of an embodiment of the present application, a color filter layer is provided on one side of a first substrate. The color filter layer has a plurality of light-transmitting holes, including a first light-transmitting hole located on the color filter. The light-transmitting holes are provided so that when a display panel provided with the color filter substrate is in use, a portion of the ambient light can pass through the color filter layer through the light-transmitting holes and illuminate the display substrate. The ambient light irradiated onto the display substrate is reflected and then irradiated onto the color filter and transmitted, superimposed with the light emitted by the display substrate and transmitted through the color filter, thereby enhancing the display brightness of the display panel. The stronger the ambient light, the stronger the ambient light that enters the display panel through the light-transmitting holes, and the greater the improvement in the display brightness of the display panel, so that the display brightness of the display panel can change with changes in the intensity of the ambient light. Since the extension direction of the light-transmitting hole is at an acute angle to the first substrate, that is, the light-transmitting hole is not perpendicular to the first substrate, the ambient light reflected from the display substrate is prevented from directly irradiating the observer's eyes through the light-transmitting hole, without affecting the observer's viewing of the display image.

[0024] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a schematic structural diagram of a display panel provided in Example 1 of the present application;

[0027] Figure 2 This is a structural diagram of a color filter substrate provided in Example 2 of the present application;

[0028] Figure 3 yes Figure 2 A local enlarged schematic diagram in FIG.

[0029] Figure 4 This is a structural diagram of a color filter substrate provided in Example 3 of the present application;

[0030] Figure 5 yes Figure 4 A partial enlarged schematic diagram of the color filter substrate shown;

[0031] Figure 6 This is a flow chart of a method for preparing a color filter substrate provided in Example 4 of the present application;

[0032] Figure 7 This is a schematic structural diagram of a display panel provided in Example 5 of the present application;

[0033] Figure 8 This is a schematic structural diagram of a display substrate provided in an embodiment of the present application.

[0034] Figure Number:

[0035] Sensor: 11; display area: 11a; non-display area: 11b; first substrate: 20; color filter layer: 30; light transmission hole: 30a; color resist: 31; red resist: 311; green resist: 312; blue resist: 313; first light transmission hole: 31a; black matrix: 32; anti-reflection film: 41; anti-reflection liquid: 42; first diffuse reflection layer: 43; reflective layer: 321; second light transmission hole: 32a; electro-transparent layer: 44; display substrate: 100; color filter substrate: 200; second substrate: 101; second diffuse reflection layer: 102; light-emitting unit: 103. DETAILED DESCRIPTION

[0036] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0037] It will also be understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0038] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0040] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0041] References to "one embodiment" or "some embodiments" in the present specification mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized. "Multiple" means two or more.

[0042] Example 1

[0043] Figure 1 This is a schematic diagram of the structure of a display panel provided in the first embodiment of the present application. The display panel can be, but is not limited to, a display panel in a mobile phone, a tablet computer, a laptop computer, a monitor, a smart wearable device, or a vehicle-mounted display device. Figure 1 As shown, the display panel has a sensor 11. As an example, the sensor 11 is located in the non-display area 11b of the display panel. In other possible examples, the sensor 11 may also be located in the display area 11a of the display panel.

[0044] The sensor 11 is used to detect the intensity of ambient light. While the display panel is displaying images, it can adjust the brightness of the display area 11a based on the ambient light intensity detected by the sensor 11. When the ambient light intensity is high, such as outdoors on a sunny day, the display brightness of the display area 11a is high. When the ambient light intensity is low, such as in a dimly lit underground garage, the display brightness of the display area 11a is low.

[0045] Display panels typically adjust their brightness by adjusting power. This means that higher brightness draws more power, consumes more energy, and may shorten the display panel's lifespan. The brightness adjustment range of display panels is also limited. In strong ambient light conditions, such as direct sunlight, even at maximum brightness, the display panel may not be bright enough for viewers to see the image clearly.

[0046] Example 2

[0047] Figure 2 This is a schematic diagram of the structure of a color filter substrate provided in Example 2 of this application. Figure 2 As shown, the color filter substrate includes a first substrate 20 and a color filter layer 30. The color filter layer 30 is located on one side of the first substrate 20.

[0048] like Figure 2 As shown, the color filter layer 30 has a plurality of light-transmitting holes 30a, and the extending direction of the light-transmitting holes 30a forms an acute angle with the first substrate 20. That is, the light-transmitting holes 30a are not perpendicular to the first substrate 20, but are inclined relative to the first substrate 20.

[0049] The color filter layer 30 includes a plurality of color resists 31. The plurality of color resists 31 are arranged in an array. For example, the plurality of color resists 31 may include at least one of a red color resist 311, a green color resist 312, and a blue color resist 313.

[0050] Figure 2 The arrangement order of the red color resist 311 , the green color resist 312 and the blue color resist 313 shown in FIG is only an example.

[0051] In this example, the plurality of light-transmitting holes 30 a include a first light-transmitting hole 31 a located in the color resist 31 .

[0052] By providing a color filter layer 30 on one side of the first substrate 20, the color filter layer 30 has multiple light-transmitting holes 30a. When a display panel equipped with this color filter substrate is in use, some ambient light can pass through the color filter layer 30 through the first light-transmitting holes 31a and illuminate the display substrate. This ambient light, which strikes the display substrate, is reflected and then strikes the color filter 31, where it is transmitted through. This light then overlaps with the light emitted by the display substrate and transmitted through the color filter 31, thereby enhancing the display brightness of the display panel.

[0053] The stronger the ambient light, the stronger the ambient light that enters the display panel through the light-transmitting aperture 30a, and the greater the improvement in the display panel's brightness, allowing the display panel's brightness to change with changes in the intensity of the ambient light. Because the light-transmitting aperture 30a extends at an acute angle to the first substrate 20, that is, the light-transmitting aperture 30a is not perpendicular to the first substrate 20, ambient light reflected from the display substrate is prevented from directly entering the viewer's eyes through the light-transmitting aperture 30a, thereby preventing the viewer from viewing the displayed image.

[0054] In this example, the color filter layer 30 includes a plurality of color resists 31 and a plurality of black matrices 32 . The black matrices 32 are located between adjacent color resists 31 .

[0055] Figure 3 yes Figure 2 A local enlarged schematic diagram of the Figure 3 As shown, the orthographic projection of one end of the light-transmitting hole 30 a on the first substrate 20 is outside the orthographic projection of the other end of the light-transmitting hole 30 a on the first substrate 20 .

[0056] That is to say, the orthographic projections of the two ends of the light-transmitting hole 30a on the first substrate 20 do not overlap, which can prevent the ambient light reflected by the display substrate and the light emitted by the display substrate from being emitted from the light-transmitting hole 30a in a direction perpendicular to the color filter substrate in the display panel.

[0057] Observers generally observe the display screen of the display panel within the maximum viewing angle of the display panel, particularly at the center of the maximum viewing angle. Even if they deviate from the direction facing the display panel, the deviation angle will not be very large. By preventing ambient light reflected from the display substrate and light emitted from the display substrate from being emitted from the light-transmitting hole 30a in a direction perpendicular to the color filter substrate, these light rays can be prevented from directly striking the eyes of the observer facing the display panel, thereby preventing the observer from experiencing glare or other discomfort.

[0058] As an example, the angle α between the extending direction of the light-transmitting hole 30 a and the first substrate 20 is no greater than 60°.

[0059] During display panel display, some light can be emitted from the light-transmitting hole 30a and potentially illuminate the observer's eyes. Setting the angle between the extending direction of the light-transmitting hole 30a and the first substrate 20 to no more than 60° can prevent the observer from directly receiving light directly emitted from the light-transmitting hole 30a within a 60° cone angle range.

[0060] The angle between the extension direction of the light-transmitting hole 30a and the first substrate 20 can be set based on the viewing angle of the display panel. For example, the angle between the extension direction of the light-transmitting hole 30a and the first substrate 20 can be no greater than half the supplementary angle of the maximum viewing angle. For example, if the maximum viewing angle is 120°, the angle between the extension direction of the light-transmitting hole 30a and the first substrate 20 can be no greater than 30°.

[0061] The multiple light-transmitting holes 30a can be tilted in the same or different directions relative to the first substrate 20. For example, the light-transmitting holes 30a on one side of a symmetry axis of the color filter substrate can have different tilt directions than the light-transmitting holes 30a on the other side of the symmetry axis, while the light-transmitting holes 30a on the same side of the symmetry axis can have the same tilt direction. Taking a rectangular color filter substrate as an example, the symmetry axis can be parallel to the length of the color filter substrate or parallel to the width of the color filter substrate.

[0062] like Figure 2 The color filter substrate may further include an anti-reflection film 41 , and the anti-reflection film 41 may be located on one side of the color filter layer 30 .

[0063] In a display panel equipped with the color filter substrate, the anti-reflection film 41 is located on the side of the color filter layer 30 away from the display substrate. That is, during use, ambient light first strikes the anti-reflection film 41 and then passes through the color filter layer 30 into the interior of the display panel. When ambient light strikes the color filter layer 30, some of the light will pass through the color filter layer 30, some of the light will be absorbed by the color filter layer 30, and some of the light will be reflected by the color filter layer 30. The light reflected by the color filter layer 30 may affect the display effect, making it difficult for the observer to see the displayed image clearly. The provision of the anti-reflection film 41 can reduce the reflection of ambient light by the color filter layer 30, prevent the light reflected by the color filter layer 30 from having an adverse effect on the display effect, and help improve the display effect.

[0064] For example, the antireflection film 41 may be provided only for the color resist 31, or only for the black matrix 32, or for both the color resist 31 and the black matrix 32. As an example, in this example, the antireflection film 41 is provided for both the color resist 31 and the black matrix 32.

[0065] In some examples, such as Figure 3As shown, the light-transmitting hole 30a may be filled with an anti-permeability liquid 42. The anti-permeability liquid 42 in this example may be liquid or solid at room temperature. The anti-permeability liquid 42 may be provided in the light-transmitting hole 30a to increase the transmittance of light.

[0066] In a color filter substrate in which the anti-reflection liquid 42 is liquid, the light-transmitting hole 30a can be sealed using the film layers on both sides of the color filter layer 30 to prevent leakage of the anti-reflection liquid 42. Alternatively, a transparent layer can be provided on both sides of the color filter layer 30, adjacent to the color filter layer 30, to provide sealing.

[0067] like Figure 2 As shown, the color filter substrate may further include a first diffuse reflection layer 43 , and the first diffuse reflection layer 43 is located on one side of the black matrix 32 .

[0068] The first diffuse reflection layer 43 and the antireflection film 41 can be located on opposite sides of the color filter layer 30. When the color filter substrate is applied to a display panel, the first diffuse reflection layer 43 can be located on a side of the color filter layer 30 close to the display substrate.

[0069] The first diffuse reflection layer 43 diffusely reflects light incident on its surface. By providing the first diffuse reflection layer 43, ambient light reflected by the display substrate is diffusely reflected by the first diffuse reflection layer 43, preventing this light from being absorbed by the black matrix 32 and causing a reduction in display brightness.

[0070] The first diffuse reflection layer 43 may include a plurality of sub-reflection layers, which are arranged in a one-to-one correspondence with the black matrix 32. The orthographic projection of the sub-reflection layer on the first substrate 20 may coincide with the orthographic projection of the black matrix 32 on the first substrate 20.

[0071] Example 3

[0072] Figure 4 This is a schematic diagram of the structure of a color filter substrate provided in Example 3 of this application. Figure 2 In the example shown, Figure 4 As shown, in the color filter substrate, the plurality of light-transmitting holes 30 a further include a second light-transmitting hole 32 a located in the black matrix 32 .

[0073] In this example, in addition to arranging the first light-transmitting hole 31a, a second light-transmitting hole 32a is also provided in the black matrix 32, so that a portion of the ambient light can be irradiated into the display panel through the second light-transmitting hole 32a. After the ambient light is reflected by the display substrate of the display panel, it passes through the color filter substrate 31 and is superimposed with the light emitted by the display substrate and transmitted through the color filter substrate 31, thereby enhancing the display brightness of the display panel.

[0074] The arrangement of the second light-transmitting hole 32a can refer to the arrangement of the first light-transmitting hole 31a in the second embodiment. For example, the orthographic projection of one end of the second light-transmitting hole 32a on the first substrate 20 can also be located outside the orthographic projection of the other end of the second light-transmitting hole 32a on the first substrate 20. For example, the angle between the extension direction of the second light-transmitting hole 32a and the first substrate 20 can be no greater than 60°. For example, an anti-permeability liquid 42 can also be disposed in the second light-transmitting hole 32a.

[0075] like Figure 4 As shown, in this example, the first diffuse reflection layer 43 can have a through hole 43a aligned with the second light-transmitting hole 32a. The provision of the through hole 43a can prevent the first diffuse reflection layer 43 from blocking the light in the second light-transmitting hole 32a, allowing ambient light to pass through the color filter layer 30 more smoothly.

[0076] Figure 5 yes Figure 4 The partially enlarged schematic diagram of the color filter substrate shown is Figure 5 The arrows in the figure indicate the propagation of part of the ambient light. Figure 5 As shown, a reflective layer 321 is provided on the hole wall of the second light-transmitting hole 32 a.

[0077] Because the black matrix 32 has a relatively strong absorption effect on light, a portion of the ambient light that shines into the second light-transmitting hole 32a may be absorbed by the black matrix 32, thereby reducing the intensity of the ambient light that can pass through the black matrix 32 and shine on the display substrate, which is not conducive to improving the display brightness of the display panel. In this example, by providing a reflective layer 321 on the hole wall of the second light-transmitting hole 32a, even if the light that shines into the second light-transmitting hole 32a cannot directly pass through the second light-transmitting hole 32a, it can still pass through the second light-transmitting hole 32a due to the reflection effect of the reflective layer 321. As a result, more light can enter the interior of the display panel through the second light-transmitting hole 32a and shine on the display substrate, which is conducive to improving the display brightness of the display panel.

[0078] like Figure 4 As shown, the color filter substrate may further include an electrotransparent layer 44 , which is located on one side of the black matrix 32 .

[0079] In this example, the electrotransparent layer 44 is located on the side of the black matrix 32 away from the first diffuse reflection layer 43. When the color filter substrate is applied to a display panel, the electrotransparent layer 44 is located on the side of the color filter layer 30 away from the display substrate.

[0080] The transparency of the electrotransparent layer 44 changes under the influence of an electrical signal, thereby adjusting the intensity of light transmitted through the second light-transmitting aperture 32a. For example, in a darker environment, the transparency of the electrotransparent layer 44 can be adjusted to a lower level, thereby reducing the amount of light emitted by the display substrate that transmits through the second light-transmitting aperture 32a. In a brighter environment, the transparency of the electrotransparent layer 44 can be adjusted to a higher level, allowing ambient light to pass through the second light-transmitting aperture 32a into the display panel and be reflected by the display substrate. In a brighter environment, even if some light emitted by the display substrate transmits through the second light-transmitting aperture 32a, the intensity of the ambient light is high and difficult for the observer to detect.

[0081] Example 4

[0082] Figure 6 This is a flow chart of a method for preparing a color filter substrate provided in Example 4 of this application. This method can be used to prepare Figures 2 to 5 Any color filter substrate shown. Figure 6 As shown, the preparation method comprises:

[0083] In step S11 , a color filter layer 30 is formed on one side of the first substrate 20 .

[0084] The color filter layer 30 includes a plurality of color resists 31 .

[0085] In step S12 , a plurality of light-transmitting holes 30 a are formed in the color filter layer 30 .

[0086] The extending direction of the light-transmitting hole 30 a forms an acute angle with the first substrate 20 . The plurality of light-transmitting holes 30 a include a first light-transmitting hole 31 a located in the color resist 31 .

[0087] In some examples, in step S12 , the light-transmitting holes 30 a may be formed mechanically, for example, by piercing the color filter layer 30 with a needle.

[0088] In some other examples, in step S12 , a plurality of light-transmitting holes 30 a may be formed in the color filter layer 30 by etching.

[0089] Example 5

[0090] Figure 7 This is a structural diagram of a display panel provided in Example 5 of the present application. The display panel can be, but is not limited to, a display panel in a mobile phone, tablet computer, laptop computer, monitor, smart wearable device, or vehicle-mounted display device. Figure 7 As shown, the display panel includes a display substrate 100 and a color filter substrate 200. The color filter substrate 200 can be any of the color filter substrates shown in the above embodiments. Figure 4 The color filter substrate 200 shown is taken as an example for description.

[0091] Figure 7 The straight arrows in FIG schematically show part of the ambient light, such as Figure 7 As shown, by disposing a color filter layer 30 on one side of the first substrate 20, the color filter layer 30 has multiple light-transmitting holes 30a. During use, the display panel allows a portion of ambient light to pass through the color filter layer 30 through the light-transmitting holes 30a and illuminate the display substrate 100. The ambient light that illuminates the display substrate 100 is reflected and then illuminates the color filter 31, where it is transmitted. This light is then superimposed with the light emitted from the display substrate 100 and transmitted through the color filter 31, thereby enhancing the display brightness of the display panel. The stronger the ambient light, the stronger the ambient light that enters the display panel through the light-transmitting holes 30a, and the greater the improvement in the display brightness of the display panel, allowing the display brightness of the display panel to change with changes in the intensity of the ambient light. Because the light-transmitting holes 30a extend at an acute angle to the first substrate 20, that is, the light-transmitting holes 30a are not perpendicular to the first substrate 20, ambient light reflected from the display substrate 100 is prevented from directly irradiating the viewer's eyes through the light-transmitting holes 30a, thereby preventing the viewer from viewing the displayed image.

[0092] In addition, according to the principle that the display brightness of the display panel changes with the intensity of the ambient light, it can be seen that since the ambient light is directly used to increase the brightness, there is no need to increase the power of the display panel, and no more energy is consumed, which is beneficial to reducing energy consumption. When the display panel is used in mobile devices, it is also beneficial to extend the battery life.

[0093] In some examples, the display panel may also include the sensor 11 of the display panel shown in the first embodiment. That is, the display panel can also actively adjust the display brightness of the display substrate 100 based on the detection of the ambient light intensity by the sensor 11, so that the display panel can adjust the display brightness both passively and actively. With these two adjustment methods, the display brightness of the display panel can be adjusted over a wider range, further improving the display effect of the display panel under strong ambient light conditions.

[0094] Figure 8 Schematic diagram of the structure of a display substrate provided in an embodiment of the present application. Figure 8 As shown, the display substrate 100 includes a second substrate 101, a second diffuse reflection layer 102 and a plurality of light emitting units 103. The plurality of light emitting units 103 are arrayed on a side of the second substrate 101 close to the color filter substrate 200, and the second diffuse reflection layer 102 is located between adjacent light emitting units 103.

[0095] The second diffuse reflection layer 102 can make the natural light irradiated on the display substrate 100 be reflected more evenly in different directions, thereby preventing the natural light reflected by the display substrate 100 from being too strong in some directions, thereby preventing the display panel from having poor brightness uniformity.

[0096] In some examples, the light-emitting unit 103 may be a light-emitting diode (LED) light-emitting unit, an organic light-emitting diode light-emitting unit, or a micro light-emitting diode light-emitting unit.

[0097] Example 6

[0098] Embodiment 6 of the present application provides a display device, which includes the display panel of the aforementioned embodiment. The display device can be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, a monitor, a smart wearable device, or a vehicle-mounted display device.

[0099] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A color film substrate, characterized in that: include: a first substrate (20); A color filter layer (30) is located on one side of the first substrate (20), the color filter layer (30) having a plurality of light-transmitting holes (30a), the extension direction of the light-transmitting holes (30a) forming an acute angle with the first substrate (20), the color filter layer (30) comprising a plurality of color resists (31) and a plurality of black matrices (32), the plurality of light-transmitting holes (30a) comprising a first light-transmitting hole (31a) located in the color resists (31) and a second light-transmitting hole (32a) located in the black matrix (32), and the hole wall of the second light-transmitting hole (32a) being provided with a reflective layer (321).

2. The color filter substrate according to claim 1, wherein: The orthographic projection of one end of the light-transmitting hole (30a) on the first substrate (20) is located, and the other end of the light-transmitting hole (30a) is outside the orthographic projection of the first substrate (20).

3. The color filter substrate according to claim 2, wherein: The angle formed between the extension direction of the light-transmitting hole (30a) and the first substrate (20) is no greater than 60°.

4. The color film substrate according to claim 1, wherein: Also includes at least one of the following: an anti-reflection film (41), located on one side of the color filter layer (30); The permeability-enhancing liquid (42) is located in the light-transmitting hole (30a).

5. The color filter substrate according to any one of claims 1 to 4, characterized in that: Also includes at least one of the following: A first diffuse reflection layer (43), located on one side of the black matrix (32); The electrotransparent layer (44) is located on one side of the black matrix (32).

6. A method for preparing a color film substrate, characterized in that: include: A color filter layer (30) is formed on one side of the first substrate (20), wherein the color filter layer (30) comprises a plurality of color resists (31) and a plurality of black matrices (32); A plurality of light-transmitting holes (30a) are formed in the color filter layer (30), wherein the extending direction of the light-transmitting holes (30a) forms an acute angle with the first substrate (20), and the plurality of light-transmitting holes (30a) include a first light-transmitting hole (31a) located in the color filter (31) and a second light-transmitting hole (32a) located in the black matrix (32), and a reflective layer (321) is provided on the hole wall of the second light-transmitting hole (32a).

7. A display panel, characterized in that: It comprises a display substrate (100) and a color filter substrate (200) according to any one of claims 1 to 5, wherein the display substrate (100) and the color filter substrate (200) are arranged opposite to each other.

8. The display panel according to claim 7, wherein: The display substrate (100) comprises a second substrate (101), a second diffuse reflection layer (102), and a plurality of light-emitting units (103); the plurality of light-emitting units (103) are arrayed on a side of the second substrate (101) close to the color film substrate (200); and the second diffuse reflection layer (102) is located between adjacent light-emitting units (103).

Images