Display panel and display device

Abstract

This invention discloses a display panel and a display device, relating to the field of display technology. The display panel includes a display area and a non-display area surrounding the display area. The display area includes a plurality of arrayed opening areas and non-opening areas surrounding each of the opening areas. The display panel has a light-emitting side and further includes a light control structure. The light control structure is disposed corresponding to at least a portion of the non-opening areas. The light control structure reflects or scatters ambient light incident from the light-emitting side according to changes in ambient light intensity, thereby reducing the difference between the display brightness of the non-opening areas and the display brightness of the opening areas. The technical solution of this invention aims to dynamically improve the display brightness and contrast of the display panel to meet the usage requirements of different lighting environments.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a display panel and a display device. Background Technology

[0002] Color electronic paper typically consists of an electronic paper module and a color filter. The color filter has multiple color resists, with blanking areas (BMs) or whitespace areas between adjacent color resists. BMs prevent color mixing between different color resists to improve color purity and also shield TFT traces, columnar spacers, etc., to reduce ambient light reflection and improve contrast. Whitespace areas are used to increase pixel brightness. Since the optical characteristics of whitespace areas and BMs are fixed, in low ambient light conditions, whitespace areas can effectively improve the brightness of electronic paper. However, in high ambient light conditions, because whitespace areas lack color resists, their light transmittance and reflection are high. Macroscopically, the ambient light reflected by whitespace areas is significantly higher than the color light reflected by color resist areas, resulting in a blurry image. Therefore, color electronic paper struggles to achieve high contrast while maintaining high brightness, failing to meet the requirements for effective application in various light intensities. Summary of the Invention

[0003] The main objective of this invention is to provide a display panel that dynamically improves the display brightness and contrast to meet the usage requirements of different lighting environments.

[0004] To achieve the above objectives, the present invention provides a display panel comprising a display area and a non-display area surrounding the display area. The display area includes a plurality of arrayed opening areas and non-opening areas surrounding each of the opening areas. The display panel has a light-emitting side and further includes:

[0005] A light control structure is provided corresponding to at least a portion of the non-aperture area. The light control structure reflects or scatters ambient light incident from the light-emitting side according to changes in ambient light intensity, so as to reduce the difference between the display brightness of the non-aperture area and the display brightness of the aperture area.

[0006] In one embodiment of the present invention, when the intensity of ambient light is greater than a first threshold, the light control structure disperses the ambient light incident from the non-opening area into the adjacent opening area.

[0007] Alternatively, when the intensity of the ambient light is less than the second threshold, the light control structure will concentrate the ambient light incident from the non-opening area and reflect it through the non-opening area.

[0008] In one embodiment of the present invention, the light control structure includes:

[0009] A light-transmitting column, wherein the light-transmitting column is disposed within the non-opening area;

[0010] A light-controlling film, wherein the light-controlling film is disposed within the light-transmitting column;

[0011] A photosensitive electrode is disposed on the surface of the light-control film away from the light-emitting side. The photosensitive electrode is configured to apply a voltage to the light-control film when the intensity value of the ambient light is greater than a first threshold, so that the light entering the interior of the light-control film is scattered within the light-control film.

[0012] In one embodiment of the present invention, a light-concentrating structure is formed on the surface of the light-emitting side of the light-control film.

[0013] In one embodiment of the present invention, the light-concentrating structure is one of a spherical surface or a convex arc surface.

[0014] In one embodiment of the present invention, the sidewall of the light-transmitting column includes a first segment and a second segment connected to each other. The second segment is disposed near the light-emitting side, and the light control film and the photosensitive electrode are located in the first segment. The first segment is light-transmitting, and the second segment is reflective.

[0015] In one embodiment of the present invention, the material of the light control film includes polymer-dispersed liquid crystal.

[0016] In one embodiment of the present invention, the material of the light control film includes polymer-dispersed liquid crystal.

[0017] In one embodiment of the present invention, the display panel includes:

[0018] An array substrate has an electrophoretic particle layer and a pixel layer sequentially disposed on the surface of the array substrate near the light-emitting side. The electrophoretic particle layer is disposed so that its projection on the array substrate covers the display area. The pixel layer includes a plurality of sub-pixel units arranged in an array, and the sub-pixel units are disposed corresponding to the opening area.

[0019] A color filter substrate is disposed opposite to and spaced apart from the array substrate. A color resist layer is provided on the color filter substrate. The color resist layer includes a plurality of spaced color resists. The projection of each color resist on the array substrate covers the sub-pixel unit. The light control structure is disposed between adjacent sub-pixel units.

[0020] In one embodiment of the present invention, the color resist layer further includes a blank area, which is located between two adjacent color resists. The color resists on both sides of the blank area are the same color, or the color resists on both sides of the blank area are different colors. The light control structure is set corresponding to the blank area.

[0021] In one embodiment of the present invention, the color resist layer further includes a black light-blocking matrix, the black light-blocking matrix is ​​located between two adjacent color resists, the color resists on both sides of the black light-blocking matrix are different colors, and the black light-blocking matrix is ​​staggered with the white area.

[0022] An isolation pillar is provided between two adjacent sub-pixel units, and the isolation pillar is set in accordance with the black light-blocking matrix.

[0023] The present invention also proposes a display device, including the display panel.

[0024] The technical solution of this invention involves setting a light control structure in at least a portion of the non-aperture area of ​​a display panel. By setting a light control structure that can respond to changes in ambient light, the reflection or scattering effect of the non-aperture area on ambient light is dynamically adjusted to achieve the purpose of adjusting the display brightness of the non-aperture area. For example, when the ambient light around the display panel is weak, external ambient light enters through the non-aperture area. At this time, the light control structure reflects the incident ambient light to increase the display brightness of the non-aperture area, thereby improving the overall brightness of the display panel. When the ambient light around the display panel is weak, the light control structure senses the intensity of external light and quickly adjusts its internal state, causing the ambient light entering from the outside to be scattered within the light control structure, thereby reducing the light emitted from the non-aperture area. This reduces the brightness difference between the non-aperture area and the aperture area, preventing the displayed image from appearing blurry due to the brightness of the non-aperture area being higher than that of the aperture area. The present invention provides a light control structure in the non-aperture area, which enables the light control structure to dynamically adjust the light in the non-aperture area according to the changes in the ambient brightness of the display panel, thereby adjusting the brightness of the non-aperture area and reducing the difference between the display brightness of the non-aperture area and the display brightness of the aperture area. This allows the display panel to dynamically adjust the display brightness and contrast according to changes in ambient brightness. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a top view of one embodiment of the display panel of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure reflecting ambient light in one embodiment of the display panel of the present invention;

[0028] Figure 3This is a schematic diagram of the structure that scatters ambient light in one embodiment of the display panel of the present invention.

[0029] Explanation of icon numbers:

[0030] 100. Display panel; 1. Opening area; 2. Non-opening area; 21. White space area; 23. Black light-blocking matrix; 25. Isolation pillar; 10. Array substrate; 11. Electrophoretic particle layer; 13. Pixel layer; 30. Color filter substrate; 31. Color resist; 40. Light control structure; 41. Light-transmitting pillar; 411. First segment; 413. Second segment; 43. Light control film; 431. Light-concentrating structure; 45. Photosensitive electrode.

[0031] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0036] Color electronic paper typically consists of an electronic paper module and a color filter. The color filter has multiple color resists, with blanking areas (BMs) or whitespace areas between adjacent color resists. BMs prevent color mixing between different color resists to improve color purity and also shield TFT traces, columnar spacers, etc., to reduce ambient light reflection and improve contrast. Whitespace areas are used to increase pixel brightness. Since the optical characteristics of whitespace areas and BMs are fixed, in low ambient light conditions, whitespace areas can effectively improve the brightness of electronic paper. However, in high ambient light conditions, because whitespace areas lack color resists, their light transmittance and reflection are high. Macroscopically, the ambient light reflected by whitespace areas is significantly higher than the color light reflected by color resist areas, resulting in a blurry image. Therefore, color electronic paper struggles to achieve high contrast while maintaining high brightness, failing to meet the requirements for effective application in various light intensities.

[0037] To solve the above-mentioned technical problems, the present invention provides a display panel 100.

[0038] Reference Figures 1 to 3 In one embodiment of the present invention, the display panel 100 includes a display area and a non-display area surrounding the display area. The display area includes a plurality of arrayed opening areas and non-opening areas 2 disposed around each opening area. The display panel 100 has a light-emitting side and further includes a light control structure 40. The light control structure 40 is disposed corresponding to at least a portion of the non-opening areas 2. The light control structure 40 reflects or scatters ambient light incident from the light-emitting side according to changes in ambient light intensity, so as to reduce the difference between the display brightness of the non-opening areas 2 and the display brightness of the opening areas.

[0039] Understandably, the light control structure 40 is provided for at least a portion of the non-opening areas 2, which can be understood as all non-opening areas 2 having the light control structure 40. The light control structure 40 can adjust the external ambient light only if the ambient light can be incident on it. That is, if all non-opening areas 2 have the light control structure 40, it can be understood that the light control structure 40 replaces the BM structure in the prior art. If only a portion of the non-opening areas 2 have the light control structure 40, the remaining non-opening areas 2 without the light control structure 40 still have the BM structure. To ensure that the ambient light can be incident on the interior of the light control structure 40, the non-opening areas 2 corresponding to the light control structure 40 are formed as blank areas.

[0040] The light control structure 40 can be achieved by combining a light control film 43 with a photosensitive electrode 45. The light control film 43 can be a film structure containing polymer dispersed liquid crystal (PDLC), a suspended particle device (SPD), an electrochromic film (EC), etc. By driving the internal structure of the light control film 43 to change through low voltage, the optical absorption, transmission and reflectivity of the light control film 43 can be reversibly changed. This allows the light control structure 40 to adapt and adjust the reflection or scattering of ambient light by the non-opening area 2 according to changes in the external ambient light.

[0041] In an optional embodiment, the light control structure 40 includes components such as a light-transmitting column 41, a light control film 43, and a photosensitive electrode 45. The light-transmitting column 41 is disposed within the non-opening area 2 and is a hollow structure. The light control film 43 is disposed inside the light-transmitting column 41, and the photosensitive electrode 45 is disposed on the surface of the light control film 43 away from the light-emitting side. The light control film 43 is a PDLC film layer. The photosensitive electrode 45 can detect the intensity of ambient light and apply a corresponding voltage to the PDLC film layer according to the intensity value, enabling the PDLC film layer to reflect or scatter changes in ambient light.

[0042] In an optional embodiment, the light control structure 40 can also be implemented by combining the photosensitive electrode 45 with an electrophoretic microcup or electrophoretic microcapsule. For example, the electrophoretic microcup contains a transparent liquid with a low dielectric constant and charged particles. The low dielectric constant liquid suspends the particles and provides a low-friction environment, allowing the particles to move freely. The charged particles include reflective particles and scattering particles. Reflective particles are typically positively charged and can reflect light, while scattering particles are negatively charged and can scatter light. By controlling the state of the charged particles within the electrophoretic microcup through the photosensitive electrode 45, it is possible to reflect ambient light or scatter ambient light.

[0043] The technical solution of this invention provides a light control structure 40 in at least a portion of the non-aperture area 2 of the display panel 100. By providing a light control structure 40 that can respond to changes in ambient light, the reflection or scattering effect of the non-aperture area 2 on ambient light is dynamically adjusted to achieve the purpose of adjusting the display brightness of the non-aperture area 2. For example, when the ambient light around the display panel 100 is weak, external ambient light enters through the non-aperture area 2. At this time, the light control structure 40 reflects the incident ambient light to increase the display brightness of the non-aperture area 2, thereby improving the overall brightness of the display panel 100. When the ambient light around the display panel 100 is weak, the light control structure 40 senses the intensity of external light and quickly adjusts its internal state, causing the ambient light entering from the outside to be scattered within the light control structure 40, thereby reducing the light emitted from the non-aperture area 2. This reduces the brightness difference between the non-aperture area 2 and the aperture area, preventing the displayed image from appearing blurry due to the brightness of the non-aperture area 2 being higher than that of the aperture area.

[0044] The present invention provides a light control structure 40 in the non-aperture area 2, which enables the light control structure 40 to dynamically adjust the light in the non-aperture area 2 according to the changes in ambient brightness of the display panel 100, thereby adjusting the brightness of the non-aperture area 2 and reducing the difference between the display brightness of the non-aperture area 2 and the display brightness of the aperture area. This allows the display panel 100 to dynamically adjust the display brightness and contrast according to changes in ambient brightness.

[0045] Reference Figure 2 and Figure 3 In one embodiment of the present invention, when the intensity value of ambient light is greater than a first threshold, the light control structure 40 disperses the ambient light incident from the non-opening area 2 into the interior of the adjacent opening area; or, when the intensity value of ambient light is less than a second threshold, the light control structure 40 concentrates the ambient light incident from the non-opening area 2 and reflects it through the non-opening area 2.

[0046] In one embodiment of the present invention, ambient light can be categorized as strong light or weak light based on its intensity. For example, in an indoor environment, a light intensity of 500-1000 lux can be considered weak light, while in an outdoor environment with illumination, a light intensity of 30000-50000 lux can be considered strong light. A first threshold value for ambient light intensity can be understood as an ambient light intensity greater than 30000 lux, and a second threshold value for ambient light intensity can be understood as an ambient light intensity less than 1000 lux. By utilizing the light control structure 40 to sense the light intensity of the outer environment, and when the ambient light intensity exceeds the first threshold, the ambient light incident on the non-opening area 2 is controlled to disperse into the opening area, avoiding excessive reflection from the non-opening area 2 that could cause display blurring. Simultaneously, the light dispersed into the opening area can also exit through the opening area, increasing the amount of light emitted from the opening area and improving the overall display brightness. This ensures high contrast while also increasing the display brightness of the display panel 100. When the ambient light is weak, the light control structure 40 controls the light rays incident from the non-aperture area 2, and then focuses the incident light rays and reflects them out from the non-aperture area 2, thereby increasing the brightness of the non-aperture area 2. This improves the problem that the display panel 100 has difficulty in balancing brightness and contrast when the ambient light changes, and achieves adaptive optimization of the display effect.

[0047] Reference Figure 2 and Figure 3 In one embodiment of the present invention, the light control structure 40 includes a light-transmitting column 41, a light control film 43, and a photosensitive electrode 45. The light-transmitting column 41 is disposed within the non-opening region 2, the light control film 43 is disposed within the light-transmitting column 41, and the photosensitive electrode 45 is disposed on the surface of the light control film 43 away from the light-emitting side. The photosensitive electrode 45 is configured to apply a voltage to the light control film 43 when the intensity of ambient light is greater than a first threshold, so that light entering the interior of the light control film 43 is scattered within the light control film 43.

[0048] The light-transmitting column 41 is made of a transparent material, such as transparent resin, to ensure that ambient light can smoothly enter the interior of the light-transmitting column 41. The light-controlling film 43 remains transparent when no voltage is applied, and can form a scattering structure after voltage is applied. The photosensitive electrode 45 can be made of a transparent conductive material, such as indium tin oxide, to achieve voltage control of the light-controlling film 43.

[0049] In one embodiment of the present invention, the photosensitive electrode 45 senses the intensity of external ambient light and outputs a corresponding control voltage according to the ambient light intensity signal to control the light control film 43 to be in a scattering state, thereby dynamically adjusting the ambient light in the non-aperture area 2. When the ambient light is strong, the light control film 43 scatters some light to the adjacent aperture area, thereby reducing the brightness difference between the non-aperture area 2 and the aperture area. This improves the problem that existing blank areas cannot balance brightness and contrast under different ambient light conditions due to fixed optical characteristics, and achieves adaptive optimization of the display effect of the display panel 100.

[0050] Reference Figure 2 and Figure 3 In one embodiment of the present invention, a light-concentrating structure 431 is formed on the surface of the light-control film 43 near the light-emitting side.

[0051] Understandably, the light-concentrating structure 431 refers to the ability of light to converge within the light-controlling film 43 after passing through it. The light-concentrating structure 431 can form a spherical surface on the surface of the light-controlling film 43, with a uniform curvature that can focus incident light rays in a specific direction. Alternatively, the light-concentrating structure 431 can also be a convex arc surface on the surface of the light-controlling film 43. The curvature distribution of the convex arc surface can be adjusted according to actual optical requirements to achieve more flexible light control. The convex arc surface can also optimize the light path through asymmetric design, thereby achieving more precise light reflection or scattering within the non-opening region 2. By using a spherical or arc-shaped convex surface as the light-concentrating structure 431, the distribution of ambient light in the non-opening area 2 can be effectively adjusted. When the ambient light is strong, the light-concentrating structure 431 can work with the scattering effect of the light control film 43 to disperse the light to the adjacent opening area, thereby reducing the brightness difference between the non-opening area 2 and the opening area. When the ambient light is weak, the light-concentrating structure 431 can concentrate the reflected light and improve the brightness uniformity of the non-opening area 2. Compared with the planar light control film 43, the arc-shaped convex surface or spherical surface can dynamically adjust the light path according to the ambient light intensity, thereby maintaining the visual consistency of the display panel 100 under different lighting conditions.

[0052] In addition, the light-concentrating structure 431 can also be a convex structure with an arcuate surface or a free-form surface, or a microlens array formed on the surface of the light control film 43 by photolithography, or a periodic microstructure formed on the surface of the light control film 43 by nanoimprinting. The aforementioned light-concentrating structure 431 can change the propagation direction of light incident from the outside into the interior of the light control film 43. By setting the light-concentrating structure 431 on the surface of the light control film 43 near the light-emitting side of the display panel 100, the ability of the light control film 43 to control incident light can be improved. When the ambient light is strong, the light-concentrating structure 431 can focus the incident light into a specific area inside the light control film 43, enhancing the scattering effect; when the ambient light is weak, the light-concentrating structure 431 helps to maintain the directionality of the light path. Compared with the planar structure of the light control film 43, the solution with the light-concentrating structure 431 can make the light control more precise, thereby more effectively balancing the brightness difference between the open area and the non-open area 2.

[0053] Reference Figure 2 and Figure 3 In one embodiment of the present invention, the sidewall of the light-transmitting column 41 includes a first segment 411 and a second segment 413 connected to each other. The second segment 413 is disposed near the light-emitting side. The light control film 43 and the photosensitive electrode 45 are located in the first segment 411. The first segment 411 is light-transmitting and the second segment 413 is reflective.

[0054] In one embodiment of the present invention, the first segment 411 is made of a transparent material so that in a strong light environment, the ambient light scattered by the light control film 43 can pass through the light-transmitting column 41 into the adjacent opening area. The second segment 413 is made reflective, which can be achieved by adding a high-reflectivity coating or film layer to the material of the first segment 411. By making the second segment 413 reflective, light in the opening area can be prevented from passing through the light-transmitting column 41 into the non-opening area 2 or the adjacent opening area, thereby effectively preventing color mixing between different colors.

[0055] Understandably, when the non-opening area 2 between two different color resists is set as the light control structure 40, the second segment 413 needs to be set as a reflective material. If the non-opening area 2 between the same two color resists is set as the light control structure 40, then there will be no color mixing between different colors, and the second segment 413 can be a light-transmitting material.

[0056] Reference Figure 2 and Figure 3In one embodiment of the present invention, the display panel 100 includes an array substrate 10 and a color filter substrate 30. An electrophoretic particle layer 11 and a pixel layer 13 are sequentially disposed on the surface of the array substrate 10 near the light-emitting side. The electrophoretic particle layer 11 is disposed on the projection covering display area of ​​the array substrate 10. The pixel layer 13 includes a plurality of arrayed sub-pixel units, each sub-pixel unit corresponding to an opening area 1. The color filter substrate 30 is disposed opposite to and spaced apart from the array substrate 10. A color resist layer is disposed on the color filter substrate 30, comprising a plurality of spaced color resists. The projection of each color resist on the array substrate 10 covers the sub-pixel units. A light control structure 40 is disposed between adjacent sub-pixel units.

[0057] In one embodiment of the present invention, the array substrate 10 provides support for the electrophoretic particle layer 11 and the pixel layer 13. The array substrate 10 is typically made of transparent glass or transparent resin. The electrophoretic particle layer 11 is similar to the microcapsule or microcup structure in electrophoretic display technology, and is filled with charged black and white particles. The electrophoretic particle layer 11 can form the switching structure of the display panel 100. When white particles are on top, they reflect ambient light, causing the display panel 100 to be in a display state. When black particles are on top, they absorb and reflect ambient light, causing the display panel 100 to be in a non-display state. The sub-pixel units in the pixel layer 13 are independently controlled by a TFT driving circuit to form the smallest unit of the display image.

[0058] The color resist layer includes multiple color resists, among which color resist 31 includes red, green, and blue color resists. The light control structure 40 is disposed in the gap area between sub-pixel units, its position corresponding to the spacing between the color resists 31 on the color filter substrate 30. By integrating the light control structure 40 between sub-pixel units, the problem of unstable display effect of color electronic paper under different ambient light conditions can be effectively solved. In strong light environments, the light control structure 40 can reduce reflected light in the gap area, avoiding image blurring; in low light environments, it can increase the light transmittance of the gap area, maintaining image brightness. This improves the display defects caused by fixed optical characteristics in the BM area or blank area in existing solutions, achieving a dynamic balance between display brightness and contrast, and enhancing the environmental adaptability of the display panel 100.

[0059] Reference Figure 2 and Figure 3 In one embodiment of the present invention, the color resist layer further includes a blank area, which is located between two adjacent color resists 31, wherein the color resists 31 on both sides of the blank area are the same color, or the color resists 31 on both sides of the blank area are different colors; the light control structure 40 is set corresponding to the blank area.

[0060] In one embodiment of the present invention, a blank area is provided between two color resists 31, and a light control structure 40 is provided at the corresponding position of the blank area. This allows the light control structure 40 to dynamically adjust the light in the non-aperture area 2 according to changes in the ambient brightness of the display panel 100, thereby adjusting the brightness of the non-aperture area 2 and reducing the difference between the display brightness of the non-aperture area 2 and the display brightness of the aperture area. This enables the display panel 100 to dynamically adjust its display brightness and contrast according to changes in ambient brightness. In other words, a blank area can be provided between two adjacent color resists 31 of the same or different colors. When the colors of the color resists 31 on both sides of the blank area are the same, the light control structure 40 can improve the display brightness of the blank area. When the colors of the color resists 31 on both sides of the blank area are different, since the second segment 413 of the light-transmitting column 41 of the light control structure 40 is reflective, after external ambient light passes through the different color resists 31 and enters the corresponding sub-pixel unit, the second segment 413 of the light-transmitting column 41 can effectively prevent different colored light from passing through the light-transmitting column 41 and entering the adjacent sub-pixel unit, thus preventing color mixing. In this way, the light control structure 40 can replace the BM structure in the existing solution, and can prevent color mixing between different color resists to improve color purity.

[0061] Reference Figure 2 and Figure 3 In one embodiment of the present invention, the color resist layer further includes a black light-blocking matrix 23, which is located between two adjacent color resists 31. The color resists 31 located on both sides of the black light-blocking matrix 23 are different colors, and the black light-blocking matrix 23 and the blank area are staggered. An isolation pillar 25 is also provided between two adjacent sub-pixel units, and the isolation pillar 25 is provided corresponding to the black light-blocking matrix 23.

[0062] In one embodiment of the present invention, a black light-shielding matrix 23 is provided between different color resists 31, and an isolation pillar 25 is provided in the area corresponding to the black light-shielding matrix. The black light-shielding matrix 23 can prevent color mixing between different color resists 31, thereby improving color purity. Furthermore, the black light-shielding matrix also blocks TFT traces, columnar spacers, and other areas to reduce the reflection of ambient light and improve contrast. It should be noted that by simultaneously providing a black light-shielding matrix 23 and a blank area in the non-opening area 2 of the color resist layer, the black light-shielding matrix 23 and the blank area are staggered. The color resists 31 on both sides of the black light-shielding matrix 23 are different colors, which effectively prevents color mixing between different color resists 31, improving color purity. Simultaneously, the black light-shielding matrix 23 also effectively blocks TFT traces, reducing the reflection of ambient light and improving contrast. Correspondingly, the color resists 31 on both sides of the blank area are the same color, allowing the display panel 30 to display brightness. In this embodiment, by simultaneously setting a black light-blocking matrix 23 and a white area in the color resist layer, the color purity and contrast requirements of the display panel are met, while also improving the display brightness. Furthermore, by setting the black light-blocking matrix 23 between color resists 31 of different colors, the number of light control structures 40 can be reduced, thus lowering the cost of the display panel 100.

[0063] Reference Figure 2 and Figure 3 In one embodiment of the present invention, the cross-sectional area of ​​the isolation pillar 25 gradually decreases from the array substrate 10 side to the color filter substrate 30 side. The isolation pillar 25 can be conical, trapezoidal, or stepped, all of which achieve a gradual change in cross-sectional area. The conical structure can be formed by photolithography, while the stepped structure can be achieved through multiple exposure and etching processes. The material of the isolation pillar 25 is preferably photosensitive resin or inorganic insulating material, and its height matches the thickness of the color resist layer to ensure a stable spacing between the color filter substrate 30 and the array substrate 10. By setting the cross-sectional area of ​​the isolation pillar 25 to be larger at the bottom and smaller at the top, the isolation pillar 25 can meet the support strength requirements, while the smaller top allows for compression, thus giving the entire display panel 100 resilience.

[0064] Understandably, the cross-sectional area of ​​each position in the light-transmitting column 41 of the light control structure 40 is equal. This ensures the amount of light entering the light control structure 40, so as to meet the display brightness requirements.

[0065] In one embodiment of the present invention, a black light-blocking matrix is ​​set between different color resists and a white space is set between the same color resists. That is, the black light-blocking matrix can prevent color mixing between different color resists, thereby improving color purity and contrast. Furthermore, the light control structure 40 is used to dynamically adjust the brightness and contrast of the display panel 100, thereby improving the adaptability of the display panel 100 in different environments.

[0066] The present invention also proposes a display device, which includes a display panel 100. The display panel 100 includes a display area and a non-display area surrounding the display area. The display area includes multiple arrayed opening areas and non-opening areas 2 located around each opening area. The display panel 100 has a light-emitting side. The display panel 100 also includes a light control structure 40, which is disposed corresponding to the non-opening areas 2. The light control structure 40 reflects or scatters ambient light incident from the light-emitting side according to changes in ambient light intensity, thereby reducing the difference between the display brightness of the non-opening areas 2 and the display brightness of the opening areas. This display device dynamically adjusts the ambient light through the light control structure 40, and can maintain the uniformity of display brightness under different ambient light conditions. When the ambient light is strong, the light control structure 40 scatters the incident light to adjacent opening areas, avoiding display blurring caused by excessive reflection of light from the non-opening areas 2; when the ambient light is weak, the light control structure 40 concentrates the light reflection, increasing the brightness of the non-opening areas 2. The light control structure 40 improves the problem that the display panel 100 has difficulty in achieving both high brightness and high contrast under different light intensity environments.

[0067] The above description of the present invention is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the inventive concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A display panel comprising a display area and a non-display area surrounding a periphery of the display area, the display area comprising a plurality of arrayed open areas and a non-open area provided at a periphery of each of the open areas, the display panel having a light exit side, characterized in that, The display panel also includes: A light control structure is provided corresponding to at least a portion of the non-aperture area. The light control structure reflects or scatters ambient light incident from the light-emitting side according to changes in ambient light intensity, so as to reduce the difference between the display brightness of the non-aperture area and the display brightness of the aperture area. When the intensity of ambient light is greater than a first threshold, the light control structure disperses the ambient light incident from the non-opening area into the adjacent opening area; or, when the intensity of ambient light is less than a second threshold, the light control structure concentrates the ambient light incident from the non-opening area and reflects it through the non-opening area. The light control structure includes a light-transmitting column, a light control film, and a photosensitive electrode. The light-transmitting column is disposed within the non-opening area, the light control film is disposed within the light-transmitting column, and the photosensitive electrode is disposed on the surface of the light control film away from the light-emitting side. The photosensitive electrode is configured to apply a voltage to the light control film when the intensity of the ambient light is greater than a first threshold, so that the light entering the interior of the light control film is scattered within the light control film.

2. The display panel as described in claim 1, characterized in that, The light-controlling film has a light-concentrating structure formed on the surface of the light-emitting side.

3. The display panel as described in claim 2, characterized in that, The light-concentrating structure is a circular arc convex surface.

4. The display panel as described in claim 1, characterized in that, The sidewall of the light-transmitting column includes a first segment and a second segment connected to each other. The second segment is disposed near the light-emitting side. The light control film and the photosensitive electrode are located in the first segment. The first segment is light-transmitting, and the second segment is reflective.

5. The display panel as described in claim 1, characterized in that, The material of the light-control film includes polymer-dispersed liquid crystal.

6. The display panel as described in any one of claims 1 to 5, characterized in that, The display panel includes: An array substrate has an electrophoretic particle layer and a pixel layer sequentially disposed on the surface of the array substrate near the light-emitting side. The electrophoretic particle layer is disposed so that its projection on the array substrate covers the display area. The pixel layer includes a plurality of sub-pixel units arranged in an array, and the sub-pixel units are disposed corresponding to the opening area. A color filter substrate is disposed opposite to and spaced apart from the array substrate. A color resist layer is provided on the color filter substrate. The color resist layer includes a plurality of spaced color resists. The projection of each color resist on the array substrate covers the sub-pixel unit. The light control structure is located between adjacent sub-pixel units.

7. The display panel as described in claim 6, characterized in that, The color resist layer also includes a blank area, which is located between two adjacent color resists. The color resists on both sides of the blank area are the same color, or the color resists on both sides of the blank area are different colors. The light control structure is set corresponding to the blank area. The color resist layer also includes a black light-blocking matrix, which is located between two adjacent color resists. The color resists on both sides of the black light-blocking matrix are different colors, and the black light-blocking matrix is ​​staggered with the white area. An isolation pillar is also provided between two adjacent sub-pixel units, and the isolation pillar is set corresponding to the black light-blocking matrix.

8. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 7.

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