Display panel

Abstract

The display panel comprises a backlight module, the backlight module comprises a carrier plate, a plurality of light sources and a light uniformizing structure, every two adjacent light sources are arranged on the carrier plate at intervals, the light uniformizing structure and the carrier plate are correspondingly arranged, the light sources are arranged between the light uniformizing structure and the carrier plate, the light uniformizing structure comprises at least one light guide part, and the light guide parts are arranged on the carrier plate. The light guide parts are located on the side, close to the light sources, of the dodging structure, and one light guide part corresponds to one light source. According to the display panel, the light guide part corresponding to the light source is arranged on the side, close to the light source, of the light uniformizing structure, so that when emergent light of the light source passes through the light guide part, the light is continuously refracted and reflected, light distribution is more uniform, and the display effect of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel. Background Art

[0002] The existing light-emitting diode (LED) backlight module's light supply methods are mainly divided into side-entry light supply method and direct-down light supply method. The side-entry light supply method is to set the LED lamp beads on the side of the light-diffusing plate. Its advantage is that it can achieve a light and thin structure, but it is difficult to achieve zoned control of light. The direct-down light supply method is to set multiple LED lamp beads opposite to the light-diffusing plate, which is easy to achieve local control of light. However, due to the high brightness of LED lamp monomers, the direct-down light supply method still has the problem of uneven light distribution, resulting in poor display effect of the device. Summary of the invention

[0003] An embodiment of the present application provides a display panel to improve the display effect of the display panel.

[0004] The present application provides a display panel, the display panel comprising a backlight module, the backlight module comprising:

[0005] a carrier board;

[0006] A plurality of light sources, wherein every two adjacent light sources are arranged on the carrier board at intervals;

[0007] A light homogenizing structure, the light homogenizing structure is arranged corresponding to the carrier, the light source is arranged between the light homogenizing structure and the carrier, the light homogenizing structure includes at least one light guiding part, the light guiding part is located on the side of the light homogenizing structure close to the light source, and one light guiding part is arranged corresponding to one light source.

[0008] Optionally, in some embodiments of the present application, the light guiding portion is a micro-concave-convex structure.

[0009] Optionally, in some embodiments of the present application, the light homogenizing structure includes a light homogenizing plate, the light guiding portion is provided on a side of the light homogenizing plate close to the light source, and the light homogenizing plate is a silicon-containing substrate.

[0010] Optionally, in some embodiments of the present application, the light homogenizing structure includes a light homogenizing plate, the light guiding portion is provided on a side of the light homogenizing plate close to the light source, and the light homogenizing plate is a soda-lime glass plate.

[0011] Optionally, in some embodiments of the present application, the light homogenizing structure further includes a first diffusion layer, and the first diffusion layer is arranged on a side of the light homogenizing plate close to the light source.

[0012] Optionally, in some embodiments of the present application, the light homogenizing structure further includes a second diffusion layer, and the second diffusion layer is arranged on a side of the light homogenizing plate away from the light source.

[0013] Optionally, in some embodiments of the present application, the light homogenization structure further includes a reflective layer, and the reflective layer is disposed on a side of the light homogenization structure.

[0014] Optionally, in some embodiments of the present application, diffusion particles are disposed in both the first diffusion layer and the second diffusion layer, and a material of the diffusion particles includes at least one of polymethyl methacrylate, polycarbonate and phosphatidylserine.

[0015] Optionally, in some embodiments of the present application, the backlight module further includes a reflective film, and the reflective film is disposed between the carrier board and the light source.

[0016] Optionally, in some embodiments of the present application, the light homogenizing structure further includes a rough structure, and the rough structure is arranged on a side of the light homogenizing structure close to the light source, the rough structure is located on one side of the light guiding part, and the rough structure is staggered with the light source.

[0017] The present application discloses a display panel, which includes a backlight module, which includes a carrier, a plurality of light sources and a uniform light structure, wherein every two adjacent light sources are arranged on the carrier at intervals, the uniform light structure is arranged corresponding to the carrier, a light source is arranged between the uniform light structure and the carrier, and the uniform light structure includes at least one light guide portion, which is located on a side of the uniform light structure close to the light source, and a light guide portion is arranged corresponding to a light source. In the present application, by arranging a light guide portion arranged corresponding to the light source on a side of the uniform light structure close to the light source, the light emitted from the light source can be continuously refracted and reflected when passing through the light guide portion, and after the light is continuously refracted and reflected, the light distribution is more uniform, thereby improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a first plan view schematic diagram of a display panel provided in an embodiment of the present application.

[0020] Figure 2 It is a second plan schematic diagram of the display panel provided in the embodiment of the present application.

[0021] Figure 3 It is a third plan view schematic diagram of the display panel provided in the embodiment of the present application.

[0022] Figure 4 This is a fourth plan view schematic diagram of the display panel provided in the embodiment of the present application.

[0023] Reference numerals:

[0024] Display panel 10; backlight module 11; carrier 100; light source 200; light homogenizing structure 300; light emitting surface 301; light incident surface 302; side surface 303; first diffusion layer 310; light homogenizing plate 320; light guide portion 321; rough structure 322; second diffusion layer 330; reflection layer 340; reflection film 400. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device. In the present application, "reaction" can be a chemical reaction or a physical reaction.

[0026] The present application discloses a display panel, which includes a backlight module. The backlight module includes a carrier, multiple light sources and a light homogenizing structure. Every two adjacent light sources are arranged on the carrier at intervals. The light homogenizing structure is arranged corresponding to the carrier. A light source is arranged between the light homogenizing structure and the carrier. The light homogenizing structure includes at least one light guiding part, which is located on a side of the light homogenizing structure close to the light source. A light guiding part is arranged corresponding to a light source.

[0027] In the present application, a light guide portion corresponding to the light source is arranged on the side of the light uniforming structure close to the light source, so that when the light emitted by the light source passes through the light guide portion, the light can be continuously refracted and reflected. After continuous refraction and reflection, the light distribution is more uniform, thereby improving the display effect of the display panel.

[0028] In this application, please see Figure 1 The present application provides a display panel 10. The display panel 10 includes a backlight module 11. The backlight module 11 includes a carrier 100, a light source 200 and a light homogenizing structure 300. The following is a detailed description.

[0029] The carrier 100 is a glass substrate and is used to carry the light source 200 .

[0030] There are a plurality of light sources 200. Every two adjacent light sources 200 are disposed on the carrier 100 at intervals. The light sources 200 may be sub-millimeter light emitting diodes (Mini-LEDs) or other types of light emitting diodes, which are not limited here.

[0031] The light homogenizing structure 300 is disposed correspondingly to the carrier 100. A light source 200 is disposed between the light homogenizing structure 300 and the carrier 100. The light homogenizing structure 300 includes at least one light guide portion 321. The light guide portion 321 is located on a side of the light homogenizing structure 300 close to the light source 200. A light guide portion 321 is disposed correspondingly to a light source 200.

[0032] In the present application, since the light directly above the light source 200 is more concentrated and has a stronger light intensity, a light guide portion 321 corresponding to the light source 200 is provided on the side of the light uniforming structure 300 close to the light source 200, so that the light can be diffused and the light distribution is uniform, thereby improving the uniformity of the picture and thus improving the display effect of the display panel 10.

[0033] In one embodiment, the light guiding portion 321 is a micro-concave-convex structure, that is, a dot structure.

[0034] In the present application, the light guiding portion 321 is set as a micro-concave-convex structure. Since the micro-concave-convex structure is composed of a large number of protrusions, when the light passes through the micro-concave-convex structure, the more concentrated and stronger light can be further dispersed through continuous refraction and reflection, further making the light distribution more uniform, thereby further improving the uniformity of the picture, thereby further improving the display effect of the display panel 10.

[0035] In one embodiment, there are multiple light guides 321. Every two adjacent light guides 321 are arranged at intervals, and the light guides 321 are arranged one by one corresponding to the light sources 200. In the present application, multiple light guides 321 are arranged corresponding to the light sources 200, which can further make the light distribution uniform, thereby further improving the display effect of the display panel 10.

[0036] In one embodiment, the light homogenizing structure 300 includes a light homogenizing plate 320. A light guide portion 321 is disposed on a side of the light homogenizing plate 320 close to the light source 200. The light homogenizing plate 320 is a silicon-containing substrate. The light homogenizing plate 320 has a light emitting surface 301 and a light incident surface 302 that are arranged opposite to each other. The light emitting surface 301 is located on a side of the light homogenizing plate 320 away from the light source 200. The light incident surface 302 is located on a side of the light homogenizing plate 320 close to the light source 200. The light guide portion 321 is formed by using an etching process on the light incident surface 302 of the light homogenizing plate 320.

[0037] In the prior art, the diffuser is usually made of polycarbonate (PC) or phosphatidylserine (PS) material. When the diffuser is heated or damp, it expands greatly, resulting in the expansion gap to be reserved at the edge of the display panel becoming extremely large, resulting in poor image quality at the edge of the display panel. In addition, due to the limitations of the inherent characteristics of the PC or PS diffuser, the light transmittance is low. At the same time, the thickness of the PC or PS diffuser needs to be very thick to have a light-diffusion effect, resulting in an increase in the thickness of the backlight module, which is not conducive to achieving a lightweight design. In the present application, a silicon-containing substrate is used as the light homogenizing plate 320. Due to the material characteristics of the silicon-containing substrate itself, namely, high heat resistance, strong water vapor resistance, strong aging resistance and high light transmittance, the silicon-containing substrate expands very little when heated and damp, and the expansion gap to be reserved at the boundary of the display panel 10 becomes extremely small, which can improve the image quality at the boundary of the display panel 10. At the same time, since the silicon-containing substrate has the characteristic of high light transmittance, the light utilization rate can be improved, thereby improving the display effect of the display panel 10. In addition, by using a silicon-containing substrate as the light homogenizing plate 320, the light homogenizing plate 320 does not need to be made very thick to achieve the effect of light homogenization, which reduces the thickness of the backlight module 11 and is conducive to achieving a lightweight design.

[0038] In one embodiment, the light homogenizing plate 320 is a soda-lime glass plate. Since the soda-lime glass plate has higher heat resistance, stronger water vapor resistance, stronger aging resistance and higher light transmittance, the expansion amount of the soda-lime glass plate is further reduced when it is heated and damp, and the expansion gap to be reserved at the edge of the display panel 10 is further reduced, which can improve the image quality at the edge of the display panel 10. At the same time, since the soda-lime glass plate has the characteristics of high light transmittance, the light utilization rate can be further improved, thereby further improving the display effect of the display panel 10; in addition, by using the soda-lime glass plate as the light homogenizing plate 320, the light homogenizing effect can be achieved without making the light homogenizing plate 320 very thick, which further reduces the thickness of the backlight module 11, which is conducive to achieving a light and thin design.

[0039] In one embodiment, the light homogenizing structure 300 further includes a first diffusion layer 310. The first diffusion layer 310 is disposed on a side of the light homogenizing plate 320 close to the light source 200. The first diffusion layer 310 contains diffusion particles. The material of the diffusion particles includes at least one of polymethyl methacrylate (PMMA), polycarbonate (PC) and phosphatidylserine (PS). The diffusion particles are used to disperse the light incident on the first diffusion layer 310 before entering the light homogenizing plate 320, further making the light distribution more uniform, further improving the light homogenization of the light homogenizing structure 300, and thus further improving the display effect of the display panel 10. The first diffusion layer 310 is formed on the light homogenizing plate 320 after the light guide portion 321 is formed on the light homogenizing plate 320 by an etching process, and then the light homogenizing plate 320 is cleaned, and then the first diffusion layer 310 is formed on the light homogenizing plate 320 on the side provided with the light guide portion 321.

[0040] In one embodiment, the light homogenizing structure 300 further includes a second diffusion layer 330. The second diffusion layer 330 is disposed on a side of the light homogenizing plate 320 away from the light source 200. The second diffusion layer 330 contains diffusion particles. The diffusion particles are used to disperse the light incident from the light homogenizing plate 320 into the second diffusion layer 330 and then emit it from the second diffusion layer 330, further improving the uniformity of the light, further improving the uniformity of the light homogenizing structure 300, and thus further improving the display effect of the display panel 10. The first diffusion layer 310 and the second diffusion layer 330 are optical diffusion ink layers. The first diffusion layer 310 and the second diffusion layer 330 can be formed by printing.

[0041] In the present application, a diffusion layer is provided on both the light emitting surface 301 and the light incident surface 302 of the light homogenizing plate 320, and a light guide portion 321 corresponding to the light source 200 is provided on the light incident surface 302, so that the light emitted by the light source 200 is diffused for the first time by the first diffusion layer 310, and then diffused for the second time by the light guide portion 321, and then enters the light homogenizing plate 320, and then diffused for the third time by the second diffusion layer 330 before being emitted. After multiple diffusions, the light is distributed more evenly, thereby improving the uniformity of the picture, thereby improving the display effect of the display panel 10.

[0042] See also Figure 2 It should be noted that the difference between the second structure and the first structure is:

[0043] The light homogenizing structure 300 further includes a reflective layer 340 . The reflective layer 340 is disposed on a side surface 303 of the light homogenizing structure 300 .

[0044] In the present application, a reflective layer 340 is provided on the side 303 of the light homogenizing structure 300 , which can reflect the light entering the light homogenizing structure 300 , prevent the light from leaking out of the side 303 of the light homogenizing structure 300 , and improve the light utilization rate, thereby ensuring the light output from the light output surface 301 , thereby ensuring the display effect of the display panel 10 .

[0045] In one embodiment, the reflective layer 340 can be only disposed on the side surface of the light homogenizing plate 320, and the side surface is a surface connected to the light incident surface 302 and the light emitting surface 301. The film thickness of the first diffusion layer 310 and the second diffusion layer 320 is relatively small. Due to the limitation of the film thickness, the light incident on the first diffusion layer 310 and the second diffusion layer 320 will not leak out from the side in large quantities. Therefore, it is not necessary to also set the reflective layer 340 on the side surface of the first diffusion layer 310 and the second diffusion layer 320, thereby reducing the cost of the display panel 10.

[0046] See also Figure 3 It should be noted that the difference between the third structure and the second structure is:

[0047] The backlight module 11 further includes a reflective film 400 . The reflective film 400 is disposed between the carrier 100 and the light source 200 .

[0048] In the present application, a reflective film 400 is disposed on the carrier 100 , so that the light irradiated onto the carrier 100 can be utilized, thereby improving the utilization rate of the light, and thus further improving the display effect of the display panel 10 .

[0049] See also Figure 4 It should be noted that the difference between the fourth structure and the third structure is:

[0050] The light homogenizing structure 300 further includes a rough structure 322. The rough structure 322 is disposed on a side of the light homogenizing structure 300 close to the light source 200. The rough structure 322 is located on one side of the light guide portion 321. The rough structure 322 is staggered with the light source 200. Specifically, the rough structure 322 is disposed on a side of the light homogenizing plate 320 close to the light source 200, that is, the rough structure 322 is located on the light incident surface 302.

[0051] In the present application, a rough structure 322 is arranged on the light homogenizing structure 300 and is staggered with the light source 200, so that light that does not enter the light homogenizing plate 320 through the light guide portion 321 can enter the light homogenizing plate 320 through the rough structure 322, so that after continuous refraction and reflection, the light distribution is more uniform, thereby improving the display effect of the display panel 10.

[0052] The present application discloses a display panel 10, which includes a backlight module 11. The backlight module 11 includes a carrier 100, a light homogenizing structure 300 and a plurality of light sources 200. Every two adjacent lights 200 are arranged on the carrier 100 at intervals. The light homogenizing structure 300 is arranged corresponding to the carrier 100. The light source 200 is arranged between the light homogenizing structure 300 and the carrier 100. The light homogenizing structure 300 includes at least one light guide portion 321. The light guide portion 321 is located on a side of the light homogenizing structure 300 close to the light source 200. A light guide portion 321 is arranged corresponding to a light source 200. In the present application, by arranging a light guide portion 321 arranged corresponding to the light source 200 on a side of the light homogenizing structure 300 close to the light source 200, when the light emitted by the light source 200 passes through the light guide portion 321, the light is continuously refracted and reflected, and the light distribution is more uniform, thereby improving the display effect of the display panel 10.

[0053] The above is a detailed introduction to a display panel provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, characterized in that: The invention comprises a backlight module, wherein the backlight module comprises: Carrier board; A plurality of light sources are arranged on the carrier board, and two adjacent light sources are arranged at intervals; A light homogenizing structure is arranged corresponding to the carrier plate, the light source is arranged between the light homogenizing structure and the carrier plate, the light homogenizing structure comprises at least one light guide portion, the light guide portion is located on a side of the light homogenizing structure close to the light source, and one light guide portion is arranged corresponding to one light source; Wherein, the light homogenizing structure further includes a rough structure, and the rough structure is arranged on a side of the light homogenizing structure close to the light source, the rough structure is located on one side of the light guiding part, and the rough structure and the light source are staggered.

2. The display panel according to claim 1, characterized in that: The light guiding part is a micro-concave-convex structure.

3. The display panel according to claim 2, characterized in that: The light homogenizing structure comprises a light homogenizing plate, the light guiding portion is arranged on a side of the light homogenizing plate close to the light source, and the light guiding portion is recessed in a surface of the light homogenizing plate close to the light source.

4. The display panel according to claim 3, characterized in that: The light homogenizing plate is a silicon-containing substrate or a soda-lime glass plate.

5. The display panel according to claim 3, characterized in that: The light homogenizing structure further includes a first diffusion layer, which is disposed on a side of the light homogenizing plate close to the light source, and the first diffusion layer fills the light guiding portion.

6. The display panel according to claim 5, characterized in that: The light homogenizing structure further includes a second diffusion layer, and the second diffusion layer is arranged on a side of the light homogenizing plate away from the light source.

7. The display panel according to claim 6, characterized in that: Diffusion particles are disposed in both the first diffusion layer and the second diffusion layer, and the material of the diffusion particles includes at least one of polymethyl methacrylate, polycarbonate and phosphatidylserine.

8. The display panel according to any one of claims 3 to 7, characterized in that: The light homogenizing structure further includes a reflective layer, and the reflective layer is arranged on a side surface of the light homogenizing structure.

9. The display panel according to claim 6, characterized in that: The reflective layer is disposed on the side surface of the military light plate, and the reflective layer is disposed in non-contact with the side surfaces of the first diffusion layer and the second diffusion layer.

10. The display panel according to any one of claims 1 to 7, characterized in that: The backlight module further comprises a reflective film, and the reflective film is arranged between the carrier plate and the light source.

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