Filter module, display panel and display device

Abstract

The invention provides a light filtering module, a display panel and display equipment. The light filtering module comprises a substrate and a color resistance layer. The substrate comprises a light-in surface and a light-out surface which are oppositely arranged. The color resistance layer is arranged on the light incident surface and comprises a first color resistance part, a second color resistance part and a third color resistance part. Wherein the vertical distance from the surface, deviating from the light-emitting surface, of the first color resistance part to the light-in surface is a first height, the vertical distance from the surface, deviating from the light-emitting surface, of the second color resistance part to the light-in surface is a second height, and the vertical distance from the surface, deviating from the light-emitting surface, of the third color resistance part to the light-in surface is a third height; at least two of the first height, the second height, and the third height are different. The first color resistance part, the second color resistance part and the third color resistance part of the color resistance layer are arranged to be in a step type, so that light generates a time difference of arrival, visual dynamic difference is generated, a 3D display effect is formed, the structure is optimized, the preparation difficulty and cost are reduced, visual fatigue is relieved, and the user experience is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and specifically relates to a filter module, a display panel and a display device. Background Art

[0002] In the field of 3D display technology, special glasses, naked eye 3D technology, or designs based on liquid crystal layers and optical adhesives are usually used to achieve 3D display. However, the production of these methods is complex and costly, and some technologies also have the problem of visual fatigue, which affects the user experience. Summary of the invention

[0003] In view of this, the first aspect of the present application provides a filter module, the filter module comprising:

[0004] A substrate, comprising a light incident surface and a light emitting surface arranged opposite to each other;

[0005] A color resist layer, disposed on the light incident surface, the color resist layer comprising a first color resist portion, a second color resist portion, and a third color resist portion arranged along an arrangement direction perpendicular to the substrate to the color resist layer;

[0006] Among them, the vertical distance from the surface of the first color resist portion away from the light emitting surface to the light incident surface is a first height, the vertical distance from the surface of the second color resist portion away from the light emitting surface to the light incident surface is a second height, and the vertical distance from the surface of the third color resist portion away from the light emitting surface to the light incident surface is a third height, and at least two of the first height, the second height, and the third height are different.

[0007] The filter module provided in the first aspect of the present application limits at least two of the first height, the second height, and the third height to be different. In other words, at least two of the first color resist portion, the second color resist portion, and the third color resist portion have a height difference, so as to form a stepped color resist portion on the substrate, so that the time at which light passing through the first color resist portion, the second color resist portion, and the third color resist portion reaches the user's eyes is different, resulting in an arrival time difference, for example, a microsecond delay, thereby generating a visual dynamic difference and forming a 3D display effect.

[0008] In summary, this embodiment sets the first color resist portion, the second color resist portion, and the third color resist portion of the color resist layer in a stepped manner to create a time difference in arrival of light, thereby producing a visual dynamic difference and forming a 3D display effect. This not only optimizes the structure and reduces the user's usage burden, but also reduces the difficulty and cost of preparation, and is also beneficial to improving the visual effect of 3D display technology, reducing visual fatigue, and improving user experience.

[0009] The color-resist layer includes a plurality of color-resist units, each of which is composed of a first color-resist portion, a second color-resist portion, and a third color-resist portion; and the plurality of color-resist units satisfy at least one of the following conditions:

[0010] The first height is greater than the second height, and the first height is greater than the third height;

[0011] The second height is greater than the first height, and the second height is greater than the third height;

[0012] The third height is greater than the first height, and the third height is greater than the second height.

[0013] In at least one of the color-resistance units, the second height is greater than the first height, the second height is greater than the third height, and the first height is equal to the third height.

[0014] Wherein, in one of the color-resistance units, the first height, the second height, and the third height are different from each other, the minimum value among the first height, the second height, and the third height is the minimum height, and the maximum value among the first height, the second height, and the third height is the maximum height;

[0015] The plurality of color-resistance units include adjacent first and second color-resistance units, the minimum height of the first color-resistance unit is equal to the minimum height of the second color-resistance unit, and the maximum height of the second color-resistance unit is equal to the maximum height of the second color-resistance unit.

[0016] The light incident surface includes a first area and a second area located at two opposite sides of the symmetry axis of the substrate, and the color resistance unit located in the first area and the color resistance unit located in the second area are symmetrically arranged along the symmetry axis of the substrate.

[0017] Wherein, the color-resist layer further includes a light-transmitting spacer, and the light-transmitting spacer is located between two adjacent color-resist units.

[0018] The light emitting surface is provided with a groove, and the groove corresponds to at least one of the first color resistance portion, the second color resistance portion, and the third color resistance portion.

[0019] Wherein, the grooves include a first groove corresponding to the first color resistance portion, a second groove corresponding to the second color resistance portion, and a third groove corresponding to the third color resistance portion;

[0020] Among them, the vertical distance from the surface of the first color resist portion away from the light emitting surface to the bottom wall of the first groove is a first distance, the vertical distance from the surface of the second color resist portion away from the light emitting surface to the bottom wall of the second groove is a second distance, and the vertical distance from the surface of the third color resist portion away from the light emitting surface to the bottom wall of the third groove is a third distance, and the first distance, the second distance, and the third distance are equal.

[0021] The second aspect of the present application provides a display panel, which includes a light-emitting module and a filter module as provided in the first aspect of the present application, wherein the light-emitting module is arranged on a side of the color resist layer away from the substrate, and the light emitted by the light-emitting module passes through the color resist layer, the light incident surface, and the light emitting surface in sequence, and is emitted from the display panel.

[0022] The display panel provided in the second aspect of the present application adopts the filter module provided in the first aspect of the present application, and the first color resistance portion, the second color resistance portion, and the third color resistance portion in the filter module are stepped, so that the light has an arrival time difference, thereby generating a visual dynamic difference and forming a 3D display effect. It not only optimizes the structure and reduces the user's usage burden, but also reduces the difficulty and cost of preparation, and is also conducive to improving the visual effect of 3D display technology, reducing visual fatigue, and improving user experience.

[0023] A third aspect of the present application provides a display device, comprising a housing, and a display panel as provided in the second aspect of the present application, wherein the display panel is mounted on the housing.

[0024] The display device provided in the third aspect of the present application adopts the display panel provided in the second aspect of the present application, and the first color resistance portion, the second color resistance portion, and the third color resistance portion in the filter module are stepped, so that the light has an arrival time difference, thereby generating a visual dynamic difference and forming a 3D display effect. It not only optimizes the structure and reduces the user's usage burden, but also reduces the preparation difficulty and cost, and is also conducive to improving the visual effect of 3D display technology, reducing visual fatigue, and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0026] Figure 1 A schematic diagram of the structure of a filter module provided in one embodiment of the present application.

[0027] Figure 2 A partial enlargement of the filter module provided in one embodiment of the present application Figure 1 .

[0028] Figure 3A partial enlargement of the filter module provided in one embodiment of the present application Figure 2 .

[0029] Figure 4 A partial enlargement of the filter module provided in one embodiment of the present application Figure 3 .

[0030] Figure 5 A partial enlargement of the filter module provided in one embodiment of the present application Figure 4 .

[0031] Figure 6 A partial enlargement of the filter module provided in one embodiment of the present application Figure 5 .

[0032] Figure 7 This is a schematic structural diagram of a filter module provided in another embodiment of the present application.

[0033] Figure 8 This is a partially enlarged view of a filter module provided in another embodiment of the present application.

[0034] Fig. 9 Schematic diagram of the preparation process of the filter module provided in one embodiment of the present application Figure 1 .

[0035] Fig.10 Schematic diagram of the preparation process of the filter module provided in one embodiment of the present application Figure 2 .

[0036] Fig.11 Schematic diagram of the preparation process of the filter module provided in one embodiment of the present application Figure 3 .

[0037] Fig.12 Schematic diagram of the preparation process of the filter module provided in one embodiment of the present application Figure 4 .

[0038] Fig.13 Schematic diagram of the preparation process of the filter module provided in one embodiment of the present application Figure 5 .

[0039] Fig.14 Schematic diagram of the preparation process of the filter module provided in one embodiment of the present application Figure 6 .

[0040] Fig.15 A schematic diagram of the structure of a display panel provided in one embodiment of the present application.

[0041] Description of reference numerals: filter module 1, substrate 11, light incident surface 111, first area 1111, second area 1112, light exit surface 112, groove 1121, first groove 1121a, second groove 1121b, third groove 1121c, color resist layer 12, first color resist portion 121, second color resist portion 122, third color resist portion 123, color resist unit 124, first color resist unit 124a, second color resist unit 124b, light-transmitting spacer 125, upper polarizer 13, lower polarizer 14, optical adhesive 15, first photolithography layer 161, second photolithography layer 162, third photolithography layer 163, first card slot 171, second card slot 172, liquid crystal module 2, liquid crystal layer 21, array layer 22, display panel 3, light-emitting module 31. DETAILED DESCRIPTION

[0042] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0043] Unless otherwise specified or there is a contradiction, the terms and phrases used in this application have the following meanings:

[0044] In this application, "first", "second", etc. are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0045] In this application, "one or several" refers to any one, any two or more of the listed items. Among them, "several" refers to any two or more of the listed items.

[0046] In the present application, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated. It can be mechanically connected or electrically connected. It can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0048] Please refer to Figure 1-Figure 4 The present application provides a filter module 1, the filter module 1 comprising a substrate 11 and a color resist layer 12. The substrate 11 comprises a light incident surface 111 and a light emitting surface 112 arranged opposite to each other. The color resist layer 12 is arranged on the light incident surface 111, and the color resist layer 12 comprises a first color resist portion 121, a second color resist portion 122, and a third color resist portion 123 arranged along an arrangement direction perpendicular to the substrate 11 to the color resist layer 12.

[0049] The vertical distance between the surface of the first color resist portion 121 away from the light emitting surface 112 and the light incident surface 111 is a first height (eg Figure 2 The vertical distance from the surface of the second color resist portion 122 away from the light emitting surface 112 to the light incident surface 111 is a second height (as shown in H1 in FIG. Figure 2 The vertical distance from the surface of the third color resist portion 123 away from the light emitting surface 112 to the light incident surface 111 is a third height (as shown in H2 in FIG. Figure 2 As shown in H3, at least two of the first height, the second height, and the third height are different.

[0050] The optical filter module 1 provided in this embodiment can be applied in the fields of optical display devices, virtual reality devices, augmented reality devices, etc.

[0051] The filter module 1 provided in this embodiment includes a substrate 11 and a color resist layer 12. The substrate 11 can also be understood as a color filter substrate 11. The color resist layer 12 is light-transmissive. Light can sequentially pass through the color resist layer 12, the light incident surface 111, and the light exit surface 112. The color resist layer 12 includes a plurality of color resist portions. The color of the first color resist portion 121 is one of the three colors of red, blue, and green. The color of the second color resist portion 122 is another one of the three colors of red, blue, and green. The third color resist portion 123 is the remaining one of the three colors of red, blue, and green.

[0052] At least two of the first height, the second height, and the third height are different. For example, two of the first height, the second height, and the third height are the same, and the other is different. For another example, the first height, the second height, and the third height are different.

[0053] Optionally, at least two of the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are disposed protrudingly relative to the light incident surface 111. For example, the light incident surface 111 is provided with a protrusion, and the protrusion corresponds to at least one of the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123. The protrusion includes a first protrusion corresponding to the first color resist portion 121, a second protrusion corresponding to the second color resist portion 122, and a third protrusion corresponding to the third color resist portion 123, and at least two of the heights of the first protrusion, the second protrusion, and the third protrusion relative to the light incident surface 111 are different. For another example, the first color resist portion 121 has a first thickness along the arrangement direction from the substrate 11 to the color resist layer 12, the second color resist portion 122 has a second thickness along the arrangement direction from the substrate 11 to the color resist layer 12, and the third color resist portion 123 has a third thickness along the arrangement direction from the substrate 11 to the color resist layer 12, and at least two of the first thickness, the second thickness, and the third thickness are different. Optionally, the protrusion is prepared by laser / etching or the like.

[0054] Specifically, by limiting at least two of the first height, the second height, and the third height to be different, in other words, making at least two of the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 have a height difference, so as to form a stepped color resist portion on the substrate 11, so that the time for light passing through the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 to reach the user's eyes is different, resulting in an arrival time difference, for example, a microsecond delay, thereby generating a visual dynamic difference, forming a 3D display effect, and the light, such as Figure 1 As shown in L.

[0055] In summary, this embodiment arranges the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 of the color resist layer 12 in a stepped manner to produce a time difference in arrival of the light, thereby producing a visual dynamic difference and forming a 3D display effect. This not only optimizes the structure and reduces the user's usage burden, but also reduces the difficulty and cost of preparation. By making the output light path present a 3D effect, it is also beneficial to improve the visual effect of the 3D display technology, reduce visual fatigue, and improve the user experience.

[0056] The filter module 1 provided in the present application can greatly improve the display effect of the optical display device and provide a more realistic visual experience. In addition, the application of the filter module 1 in the present application can reduce the dependence on special glasses, reduce the user's usage cost, and meet the user's demand for high-quality, low-cost 3D display devices.

[0057] Please refer to Figure 1-Figure 4In one embodiment, the color resist layer 12 includes a plurality of color resist units 124, and one of the color resist units 124 is composed of one of the first color resist portions 121, one of the second color resist portions 122, and one of the third color resist portions 123. In one of the color resist units 124, the second color resist portion 122 is located between the first color resist portion 121 and the third color resist portion 123. The plurality of color resist units 124 are arranged along a direction perpendicular to the arrangement direction from the substrate 11 to the color resist layer 12. Optionally, the plurality of color resist units 124 are arranged in an array.

[0058] The plurality of color resist units 124 satisfy at least one of the following conditions: the first height is greater than the second height, and the first height is greater than the third height. For example, the second height is greater than the third height. In this case, in a color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a high, medium and low arrangement. For another example, Figure 4 As shown, the second height is less than the third height. At this time, in one color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged in a high-low-middle arrangement from left to right. For another example, the second height is equal to the third height. At this time, in one color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged in a high-low-low arrangement from left to right.

[0059] And / or, the second height is greater than the first height, and the second height is greater than the third height. For example, the first height is less than the third height. In this case, in a color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a low-high-medium arrangement. For another example, the first height is greater than the third height. In this case, in a color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a medium-high-low arrangement. For another example, Figure 3 As shown, the first height is equal to the third height. At this time, in one color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a low-high-low arrangement.

[0060] And / or, the third height is greater than the first height, and the third height is greater than the second height. Figure 2As shown, the first height is less than the second height. At this time, in a color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a low, medium and high arrangement. For another example, the first height is greater than the second height. At this time, in a color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a medium, low and high arrangement. For another example, the first height is equal to the second height. At this time, in a color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a low, low and high arrangement.

[0061] In summary, by adjusting the relationship among the first height, the second height, and the third height of the plurality of color resist units 124, the present embodiment can obtain various 3D display effects according to product requirements or user requirements, thereby increasing the application scope of the filter module 1 and improving user experience.

[0062] Optionally, in one of the color resist units 124, the minimum value among the first height, the second height, and the third height is the minimum height, the maximum value among the first height, the second height, and the third height is the maximum height, and the ratio of the minimum height to the maximum height is 1:(1.4-1.8).

[0063] Specifically, the ratio of the minimum height to the maximum height may be 1:1.4, or 1:1.5, or 1:1.6, or 1:1.7, or 1:1.8, etc.

[0064] Further optionally, the first height, the second height, and the third height are different, the middle value among the first height, the second height, and the third height is the middle height, and the ratio of the minimum height to the middle height is 1:(1.2-1.5).

[0065] Specifically, the ratio of the minimum height to the middle height may be 1:1.2, or 1:1.3, or 1:1.4, or 1:1.5, etc.

[0066] Please refer to Figure 4 In one embodiment, in at least one of the color resist units 124, the second height is greater than the first height, the second height is greater than the third height, and the first height is equal to the third height.

[0067] In a color resist unit 124, the second color resist portion 122 is located between the first color resist portion 121 and the third color resist portion 123. At this time, in a color resist unit 124, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a low-high-low arrangement. When light passes through a color resist unit 124, since the second height of the second color resist portion 122 is relatively large, it can be matched with the lower first color resist portion 121 and the third color resist portion 123 to make the color resist unit 124 protrude in a direction away from the substrate 11, so that the delay time of the light passing through the second color resist portion 122 is the longest, further increasing the time difference for the light to pass through the color resist unit 124 to reach the user's eyes, making the time for the light to reach the user's eyes slower, which is more conducive to generating visual dynamic differences and improving the 3D display effect.

[0068] In one embodiment, in one of the color resist units 124, the first height, the second height, and the third height are different, the minimum value among the first height, the second height, and the third height is the minimum height, and the maximum value among the first height, the second height, and the third height is the maximum height.

[0069] The plurality of color resist units 124 include adjacent first color resist units 124a and second color resist units 124b, the minimum height of the first color resist unit 124a is equal to the minimum height of the second color resist unit 124b, and the maximum height of the second color resist unit 124b is equal to the maximum height of the second color resist unit 124b.

[0070] The middle value among the first height, the second height, and the third height is the middle height, the middle height is greater than the minimum height, and the middle height is less than the maximum height. For example, the middle height of the first color resist unit 124a is equal to the middle height of the second color resist unit 124b. For another example, the middle height of the first color resist unit 124a is greater than the middle height of the second color resist unit 124b. For another example, the middle height of the first color resist unit 124a is less than the middle height of the second color resist unit 124b.

[0071] In summary, this embodiment limits the maximum heights and minimum heights of adjacent first color resist units 124a and second color resist units 124b to be equal, and does not limit the relationship between the intermediate heights of adjacent first color resist units 124a and second color resist units 124b. This ensures that the color resist units 124 can be stepped to produce visual dynamic differences and form a 3D display effect, and provides room for height errors in the preparation of the color resist units 124, thereby reducing the difficulty of preparation.

[0072] Please refer to Figure 5 In one embodiment, the light incident surface 111 includes a portion located at the symmetry axis of the substrate 11 (eg Figure 5As shown in FIG. 1 , the first area 1111 and the second area 1112 are on opposite sides, and the color resist units 124 located in the first area 1111 and the color resist units 124 located in the second area 1112 are symmetrically arranged along the symmetry axis of the substrate 11.

[0073] For example, in the color resist unit 124 located in the first area 1111, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a high-medium-low arrangement; and in the color resist unit 124 located in the second area 1112, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a low-medium-high arrangement. For another example, in the color resist unit 124 located in the first area 1111, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a medium-high-low arrangement; and in the color resist unit 124 located in the second area 1112, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged from left to right in a low-medium-high arrangement. For another example, in the color resist unit 124 located in the first area 1111, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged low to high from left to right; and in the color resist unit 124 located in the second area 1112, the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are arranged low to high from left to right.

[0074] In summary, in this embodiment, by limiting the color resistance units 124 of the first area 1111 and the second area 1112 to be symmetrically arranged along the symmetry axis of the substrate 11, the filter module 1 is better suitable for generating visual dynamic difference between the left and right eyes of the user, thereby improving the 3D display effect.

[0075] Please refer to Figure 6 In one embodiment, the color resist layer 12 further includes a light-transmitting spacer, and the light-transmitting spacer is located between two adjacent color resist units 124 .

[0076] The light-transmitting spacer allows light to pass through. Optionally, the color of the light-transmitting spacer is white. In this embodiment, by setting a light-transmitting spacer between two adjacent color-resistance units 124, the distance between the two adjacent color-resistance units 124 is increased, the probability of mixing of light passing through the two adjacent color-resistance units 124 is reduced, and the arrival time difference generated by the light passing through the two adjacent color-resistance units 124 is increased, thereby further generating a visual dynamic difference and improving the 3D display effect.

[0077] Optionally, in one of the color resist units 124, the maximum value among the first height, the second height, and the third height is the maximum height, and the vertical distance from the surface of the light-transmitting spacer away from the light-emitting surface 112 to the light-incident surface 111 is a fourth height, and the fourth height is less than the maximum height. Further optionally, the fourth height is equal to the minimum height or the intermediate height.

[0078] In this embodiment, by limiting the relationship between the fourth height of the light-transmitting spacer and the maximum height, the minimum height, and the intermediate height, the light-transmitting spacer cooperates with the color-resistance unit 124, so that the color-resistance layer 12 forms a stepped shape protruding in a direction away from the substrate 11, thereby increasing the delay time for light to pass through the color-resistance layer 12, making the time for light to reach the user's eyes slower, which is more conducive to producing visual dynamic difference and improving the 3D display effect.

[0079] Please refer to Figure 7-Figure 8 In one embodiment, the light emitting surface 112 is provided with a groove 1121 , and the groove 1121 corresponds to at least one of the first color resistance portion 121 , the second color resistance portion 122 , and the third color resistance portion 123 .

[0080] The groove 1121 includes at least one of a first groove 1121a corresponding to the first color resist portion 121, a second groove 1121b corresponding to the second color resist portion 122, and a third groove 1121c corresponding to the third color resist portion 123. Specifically, the light sequentially passes through the color resist layer 12, the light incident surface 111, and the bottom wall of the groove 1121, and is emitted. For example, the light sequentially passes through the first light blocking portion, the light incident surface 111, and the bottom wall of the groove of the first groove 1121a, and is emitted. For another example, the light sequentially passes through the second light blocking portion, the light incident surface 111, and the bottom wall of the groove of the second groove 1121b, and is emitted. For another example, the light sequentially passes through the third light blocking portion, the light incident surface 111, and the bottom wall of the groove of the third groove 1121c, and is emitted.

[0081] In summary, this embodiment increases the time difference for light passing through the first color resistance portion 121, the second color resistance portion 122, and the third color resistance portion 123 to reach the user's eyes by setting a groove 1121 on the light emitting surface 112, which is beneficial to produce visual dynamic difference and improve the 3D display effect.

[0082] Please refer to Figure 7-Figure 8 In one embodiment, the groove 1121 includes a first groove 1121a corresponding to the first color resist portion 121 , a second groove 1121b corresponding to the second color resist portion 122 , and a third groove 1121c corresponding to the third color resist portion 123 .

[0083] The vertical distance between the surface of the first color resist portion 121 away from the light emitting surface 112 and the bottom wall of the first groove 1121a is a first distance (eg Figure 8 The vertical distance from the surface of the second color resist portion 122 away from the light emitting surface 112 to the bottom wall of the second groove 1121b is a second distance (as shown in D1 in FIG. Figure 8 The vertical distance from the surface of the third color resist portion 123 away from the light emitting surface 112 to the bottom wall of the third groove 1121c is a third distance (as shown in D2 in FIG. Figure 8 As shown in D3, the first distance, the second distance, and the third distance are equal.

[0084] The first distance is equal to the second distance, and the second distance is equal to the third distance, which can ensure that the distances traveled by the light through the color resist layer 12 and the substrate 11 are the same, so as to control the time difference of the light reaching the user's eyes, which is conducive to generating visual dynamic difference and improving the 3D display effect.

[0085] Optionally, the thicknesses of the first color resist portion 121, the second color resist portion 122, and the third color resist portion 123 are equal. The vertical distance from the portion of the light incident surface 111 provided with the first color resist portion 121 to the bottom wall of the first groove 1121a is equal to the vertical distance from the portion of the light incident surface 111 provided with the second color resist portion 122 to the bottom wall of the second groove 1121b, and the vertical distance from the portion of the light incident surface 111 provided with the second color resist portion 122 to the bottom wall of the second groove 1121b is equal to the vertical distance from the portion of the light incident surface 111 provided with the third color resist portion 123 to the bottom wall of the third groove 1121c.

[0086] The present application also provides a method for preparing a filter module 1, comprising:

[0087] The first step is to provide a substrate 11 and form a protrusion on a light incident surface 111 of the substrate 11 .

[0088] In the second step, a color resist layer 12 is formed on the light incident surface 111. The color resist layer 12 includes a first color resist portion 121, a second color resist portion 122, and a third color resist portion 123 arranged along an arrangement direction perpendicular to the substrate 11 to the color resist layer 12; wherein, a vertical distance from a surface of the first color resist portion 121 away from the light emitting surface 112 to the light incident surface 111 is a first height, a vertical distance from a surface of the second color resist portion 122 away from the light emitting surface 112 to the light incident surface 111 is a second height, and a vertical distance from a surface of the third color resist portion 123 away from the light emitting surface 112 to the light incident surface 111 is a third height, and at least two of the first height, the second height, and the third height are different.

[0089] Specifically, in the process of providing the substrate 11, the substrate 11 is cleaned and dried, and a protrusion, i.e., a stepped platform, is formed on the surface thereof by laser / etching or the like process, so as to facilitate the arrangement of the color resist portion. In the process of forming the color resist layer 12, a layered exposure process is adopted to lay the color resist portion on the substrate 11. After the color resist portion is laid, the arrangement of each color is in a stepped manner.

[0090] Please refer to Figure 9-Figure 14 , the specific process of forming the color resist layer 12 is as follows: a first photoresist layer 161 is coated on the substrate 11, and the first color resist portion 121 is disposed on the side of the first photoresist layer 161 away from the substrate 11. Then, the first photoresist layer 161 exposed outside the first color resist portion 121 is removed. Subsequently, a first card groove 171 is etched, and the first card groove 171 is disposed adjacent to the first color resist portion 121. Then, a second photoresist layer 162 is coated in the first card groove 171, and the second color resist portion 122 is disposed on the side of the second photoresist layer 162 away from the substrate 11. Then, the second photoresist layer 162 exposed outside the second color resist portion 122 is removed. Subsequently, a second card groove 172 is etched, and the second card groove 172 is located on the side of the second color resist portion 122 away from the first color resist portion 121. Then, the third photoresist layer 163 is coated in the second card groove 172 , and the third color resist portion 123 is disposed on a side of the third photoresist layer 163 away from the substrate 11 .

[0091] The present application adopts step exposure of the substrate 11 to form a stepped color resist layer 12, and performs delayed collision on light particles. After activation, the array layer 22 and liquid crystal particles corresponding to the steps produce microsecond delay when light passes through the stepped color resist layer 12 according to the height difference of each step, thereby producing a visual dynamic difference and forming a 3D display effect, thereby improving the display effect.

[0092] Please refer to Figure 1-Figure 15 The present application also provides a display panel 3, which includes a light-emitting module 31 and a filter module 1 as provided above in the present application. The light-emitting module 31 is arranged on the side of the color-resistance layer 12 away from the substrate 11. The light emitted by the light-emitting module 31 passes through the color-resistance layer 12, the light-incident surface 111, and the light-exiting surface 112 in sequence and is emitted from the display panel 3.

[0093] The filter module 1 provided in the present application may have a display panel 3, and the display panel 3 may be a liquid crystal display, a Micro LED display, or a LED display, etc.

[0094] Optionally, when the filter module 1 is applied to a liquid crystal display, the display panel 3 further includes a liquid crystal module 2 disposed on the side of the color resist layer 12 away from the substrate 11, the liquid crystal module 2 includes a liquid crystal layer 21 and an array layer 22, the liquid crystal layer 21 is disposed on the color resist layer 12, and the array layer 22 is disposed on the side of the liquid crystal layer 21 away from the color resist layer 12; the filter module 1 further includes an upper polarizer 13 and a lower polarizer 14, the upper polarizer 13 is disposed on the side of the substrate 11 away from the color resist layer 12, the lower polarizer 14 is disposed on the side of the array layer 22 away from the liquid crystal layer 21, and the upper polarizer 13 is bonded to the substrate 11 by an optical adhesive 15. Specifically, the material of the liquid crystal layer 21 is a negative liquid crystal material, and the optical adhesive 15 is a UV curable optical adhesive 15. The light emitting module 31 is disposed on the side of the liquid crystal module 2 away from the filter module 1.

[0095] Specifically, the light of the light emitting module 31 passes through the array layer 22 to reach the liquid crystal layer 21. Since the color resist layer 12 is in a stepped state, or causes the liquid crystal layer 21 to also appear in a stepped state, when the light passes through the liquid crystal particles activated by the circuit of the array layer 22, the deflected liquid crystal particles release the light onto the filter module 1. At this time, because the color resist layer 12 is in a stepped state, an arrival time difference will be generated, and when it is transmitted to the upper polarizer 13, a time difference will also be generated on its outgoing surface, thereby achieving a dynamic display effect.

[0096] In addition, there is also a stepped groove 1121 on the light-emitting surface 112 of the substrate 11, and it is filled with optical glue 15 before being attached to the polarizer 13. At this time, a three-dimensional effect of the light-emitting surface 112 will be produced. When the light passes through the color resistance layer 12, it will be separated between layers of different heights. For the observer, a visual difference will be generated. The color resistance parts of different heights are combined to form a three-dimensional object, producing a 3D display effect.

[0097] The display panel 3 provided in the present application adopts the filter module 1 provided in the present application. The first color resistance portion 121, the second color resistance portion 122, and the third color resistance portion 123 in the filter module 1 are stepped, so that the light has an arrival time difference, thereby generating a visual dynamic difference and forming a 3D display effect. It not only optimizes the structure and reduces the user's usage burden, but also reduces the preparation difficulty and cost, and is also conducive to improving the visual effect of 3D display technology, reducing visual fatigue, and improving user experience.

[0098] The present application also provides a method for preparing a display panel 3, comprising:

[0099] The first step is to provide the optical filter module 1 mentioned above in the present application.

[0100] The second step is to align the substrate 11 with the array layer 22, and according to the manufacturing process, drop liquid crystals and seal them with a sealant to form a liquid crystal layer 21. In this process, the liquid crystals will automatically fill the step gaps of the color resist layer 12.

[0101] In the third step, a corresponding exposure layer is performed on the exit surface of the substrate 11 to form a groove 1121 corresponding to the color resist layer 12 .

[0102] Step 4: Fill the optical glue 15 between the substrate 11 and the upper polarizer 13 to fill the gap of the groove 1121 .

[0103] The present application also provides a display device, which includes a housing and a display panel as provided above in the present application, wherein the display panel is mounted on the housing.

[0104] The display device provided by the present application adopts the display panel provided by the present application as mentioned above, and the first color resistance portion, the second color resistance portion, and the third color resistance portion in the filter module are stepped, so that the light has an arrival time difference, thereby generating a visual dynamic difference and forming a 3D display effect. It not only optimizes the structure and reduces the user's usage burden, but also reduces the preparation difficulty and cost, and is also conducive to improving the visual effect of 3D display technology, reducing visual fatigue, and improving user experience.

[0105] The above is a detailed introduction to the contents provided in the implementation mode of the present application. This article explains and illustrates the principles and implementation modes of the present application. The above explanation is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation mode and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A filter module, characterized in that: The filter module comprises: A substrate, comprising a light incident surface and a light emitting surface arranged opposite to each other; A color resist layer, disposed on the light incident surface, the color resist layer comprising a first color resist portion, a second color resist portion, and a third color resist portion arranged along an arrangement direction perpendicular to the substrate to the color resist layer; Among them, the vertical distance from the surface of the first color resist portion away from the light emitting surface to the light incident surface is a first height, the vertical distance from the surface of the second color resist portion away from the light emitting surface to the light incident surface is a second height, and the vertical distance from the surface of the third color resist portion away from the light emitting surface to the light incident surface is a third height, and at least two of the first height, the second height, and the third height are different.

2. The optical filter module according to claim 1, characterized in that: The color-resist layer includes a plurality of color-resist units, each of which is composed of a first color-resist portion, a second color-resist portion, and a third color-resist portion; and the plurality of color-resist units satisfy at least one of the following conditions: The first height is greater than the second height, and the first height is greater than the third height; The second height is greater than the first height, and the second height is greater than the third height; The third height is greater than the first height, and the third height is greater than the second height.

3. The filter module according to claim 2, characterized in that: In at least one of the color-resistance units, the second height is greater than the first height, the second height is greater than the third height, and the first height is equal to the third height.

4. The optical filter module according to claim 2, wherein: In one of the color-resistance units, the first height, the second height, and the third height are different from each other, the minimum value among the first height, the second height, and the third height is the minimum height, and the maximum value among the first height, the second height, and the third height is the maximum height; The plurality of color-resistance units include adjacent first and second color-resistance units, the minimum height of the first color-resistance unit is equal to the minimum height of the second color-resistance unit, and the maximum height of the second color-resistance unit is equal to the maximum height of the second color-resistance unit.

5. The filter module according to claim 2, characterized in that: The light incident surface includes a first area and a second area located at two opposite sides of the substrate symmetry axis, and the color resistance unit located in the first area and the color resistance unit located in the second area are symmetrically arranged along the substrate symmetry axis.

6. The optical filter module according to claim 2, characterized in that: The color resist layer further includes a light-transmitting spacer, and the light-transmitting spacer is located between two adjacent color resist units.

7. The optical filter module according to claim 1, wherein: The light emitting surface is provided with a groove, and the groove corresponds to at least one of the first color resistance portion, the second color resistance portion, and the third color resistance portion.

8. The optical filter module according to claim 7, characterized in that: The grooves include a first groove corresponding to the first color resistance portion, a second groove corresponding to the second color resistance portion, and a third groove corresponding to the third color resistance portion; Among them, the vertical distance from the surface of the first color resist portion away from the light emitting surface to the bottom wall of the first groove is a first distance, the vertical distance from the surface of the second color resist portion away from the light emitting surface to the bottom wall of the second groove is a second distance, and the vertical distance from the surface of the third color resist portion away from the light emitting surface to the bottom wall of the third groove is a third distance, and the first distance, the second distance, and the third distance are equal.

9. A display panel, characterized in that: The display panel includes a light-emitting module and a filter module as described in any one of claims 1-8, wherein the light-emitting module is arranged on a side of the color-resist layer away from the substrate, and the light emitted by the light-emitting module passes through the color-resist layer, the light-incident surface, and the light-exiting surface in sequence and is emitted from the display panel.

10. A display device, characterized in that: The display device comprises a housing and the display panel as claimed in claim 9, wherein the display panel is mounted in the housing.

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