Display device

Abstract

This application discloses a display device. The display device includes: an optical waveguide substrate, the optical waveguide substrate including a light-emitting surface and a light-incident surface disposed on one side of the light-emitting surface; a light source disposed on the light-incident surface of the optical waveguide substrate; and a grating structure, the grating structure including: a first transparent electrode layer disposed on the light-emitting surface of the optical waveguide; a first holographic grating layer covering the first transparent electrode layer; and a second transparent electrode layer disposed on the first holographic grating layer and disposed opposite to the first transparent electrode layer. This application aims to solve the problem that the structure of existing display devices is complex and difficult to achieve in a thinner and lighter form factor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display device. BACKGROUND

[0002] With the rapid development of materials and technology, new display technologies are also constantly developing, from liquid crystal display to OLED, Micro-LED, laser display, electrophoretic display, 3D display, etc. The rapid development of display technology is due to the continuous improvement of consumers' taste in display requirements. The change of the screen is also a change in lifestyle.

[0003] In the research and practice of the prior art, the inventors of the present application found that the structure of the display device such as liquid crystal display or OLED is relatively complex, the assembly process is cumbersome, and it is difficult to realize the lightness and thinness of the module. Therefore, it is necessary to develop a new type of display device to overcome the defects of the prior art. SUMMARY

[0004] The embodiment of the present application provides a display device, which aims to solve the problem of complex structure of the display device in the prior art and difficult to realize light and thin.

[0005] The embodiment of the present application provides a display device, which comprises:

[0006] A light waveguide substrate, the light waveguide substrate comprises a light-out surface and a light-in surface arranged on one side of the light-out surface;

[0007] A light source, the light source is arranged on the light-in surface of the light waveguide substrate; and

[0008] A grating structure, the grating structure comprises:

[0009] A first transparent electrode layer, the first transparent electrode layer is arranged on the light-out surface of the light waveguide;

[0010] A first holographic volume grating layer, the first holographic volume grating layer covers the first transparent electrode layer;

[0011] A second transparent electrode layer, the second transparent electrode layer is arranged on the first holographic volume grating layer and is arranged opposite to the first transparent electrode layer.

[0012] Optionally, in some embodiments of the present application, the first transparent electrode layer comprises a common electrode, and the second transparent electrode layer comprises a plurality of pixel electrodes, and the plurality of pixel electrodes are arranged on the first holographic volume grating layer in a spaced manner.

[0013] Optionally, in some embodiments of the present application, the light source is a white light LED device, and the display device further comprises a color resist layer, the color resist layer is arranged on the second transparent electrode layer, the color resist layer comprises a plurality of color resist blocks, the color resist blocks comprise blue color resist blocks, green color resist blocks and red color resist blocks, and one color resist block corresponds to one pixel electrode.

[0014] Optionally, in some embodiments of the present application, the display device further comprises a first insulating layer and a plurality of black matrixes, the first insulating layer is arranged between the color resist layer and the second transparent electrode layer, the plurality of black matrixes are arranged on the first insulating layer, and one black matrix is arranged between adjacent color resist blocks.

[0015] Optionally, in some embodiments of the present application, the display device further comprises a protective layer, the protective layer covers the surface of the color resist layer away from the second transparent electrode layer.

[0016] Optionally, in some embodiments of the present application, the grating structure further comprises a third transparent electrode layer, a second holographic volume grating layer, a fourth transparent electrode layer, a fifth transparent electrode layer, a third holographic volume grating layer and a sixth transparent electrode layer arranged in sequence, and the third transparent electrode layer and the fourth transparent electrode layer are arranged oppositely, the fifth transparent electrode layer and the sixth transparent electrode layer are arranged oppositely, the display device further comprises a first insulating layer, a second insulating layer and a third insulating layer, the first insulating layer is arranged between the second transparent electrode layer and the third transparent electrode layer, the second insulating layer is arranged between the fourth transparent electrode layer and the fifth transparent electrode layer, and the third insulating layer is arranged on the sixth transparent electrode layer.

[0017] The first holographic volume grating layer transmits first color light, the second holographic volume grating layer transmits second color light, the third holographic volume grating layer transmits third color light, and the first color light, the second color light and the third color light are different.

[0018] Optionally, in some embodiments of the present application, the light source is an ultraviolet light LED device, and the display device further comprises a quantum dot conversion film, the quantum dot conversion film comprises a blue quantum dot layer, a green quantum dot layer and a red quantum dot layer arranged at intervals on the second transparent electrode layer, and the blue quantum dot layer, the green quantum dot layer and the red quantum dot layer are arranged oppositely with one pixel electrode.

[0019] Optionally, in some embodiments of this application, the light source is a blue LED device, and the display device further includes a quantum dot conversion film. The quantum dot conversion film includes a green quantum dot layer, a red quantum dot layer, and a transparent layer spaced apart on the second transparent electrode layer. The transparent layer, the green quantum dot layer, and the red quantum dot layer are respectively disposed opposite to a pixel electrode.

[0020] Optionally, in some embodiments of this application, the quantum dot conversion film is also doped with scattering particles.

[0021] Optionally, in some embodiments of this application, the light source includes a red LED device, a blue LED device, and a green LED device connected together, and the display device further includes a control chip, which is electrically connected to the red LED device, the blue LED device, and the green LED device respectively.

[0022] This application embodiment employs a display device. The display device includes an optical waveguide substrate, a light source, and a grating structure. The optical waveguide substrate includes a light-emitting surface and a light-incident surface disposed on one side of the light-emitting surface. The light source is disposed on the light-incident surface of the optical waveguide substrate. The grating structure includes a first transparent electrode layer, a first holographic grating layer, and a second transparent electrode layer. The first transparent electrode layer is disposed on the light-emitting surface of the optical waveguide, the first holographic grating layer covers the first transparent electrode layer, and the second transparent electrode layer is disposed on the first holographic grating layer and opposite to it. Thus, light emitted from the light source can enter the optical waveguide substrate from the light-incident surface and propagate within it. When the first or second transparent electrode layer is not energized, the light emitted from the light-emitting surface passes through the first holographic grating layer and diffracts, exiting from the side of the first holographic grating layer away from the light-emitting surface, thereby achieving the effect of light emission display. When both the first and second transparent electrode layers are energized, the first holographic grating layer undergoes total internal reflection of the light emitted from the light-emitting surface, allowing the light to continue propagating along the interior of the optical waveguide substrate. Therefore, this display device, based on the coordinated operation of an electrically controlled first holographic grating layer and the optical waveguide to selectively control light emission, differs from the complex display structures of traditional liquid crystal displays and OLEDs. It provides a simple structural solution for the future development of display technology, facilitating lightweight and thin design. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1This is a schematic diagram of the display device structure provided in the first embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the optical path of the display device provided in the first embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the display device structure provided in the second embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the display device structure provided in the third embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the display device structure provided in the fourth embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the display device structure provided in the fifth embodiment of this application. Detailed Implementation

[0030] The technical solutions of the embodiments of this application 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 this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0031] This application provides a display device 100. Detailed descriptions follow. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0032] Reference Figure 1 and Figure 2This application provides a display device 100 according to a first embodiment. The display device 100 includes an optical waveguide substrate 10, a light source 20, and a grating structure 30. The optical waveguide substrate 10 includes a light-emitting surface and a light-incident surface disposed on one side of the light-emitting surface. The light source 20 is disposed on the light-incident surface of the optical waveguide substrate 10. The grating structure 30 includes a first transparent electrode layer 31, a first holographic grating layer 32, and a second transparent electrode layer 33. The first transparent electrode layer 31 is disposed on the light-emitting surface of the optical waveguide, the first holographic grating layer 32 covers the first transparent electrode layer 31, and the second transparent electrode layer 33 is disposed on the first holographic grating layer 32 and is disposed opposite to the first transparent electrode layer 31. Thus, light emitted by the light source 20 can enter the optical waveguide substrate 10 from the light-incident surface and propagate within it. When the first transparent electrode layer 31 or the second transparent electrode layer 33 is not energized, the light emitted from the light-emitting surface passes through the first holographic grating layer 32 and undergoes diffraction, exiting from the side of the first holographic grating layer 32 away from the light-emitting surface, thus achieving the effect of light emission display. When both the first transparent electrode layer 31 and the second transparent electrode layer 33 are energized, the first holographic grating layer 32 will totally reflect the light emitted from the light-emitting surface, allowing the light to continue propagating along the interior of the optical waveguide substrate 10. Therefore, this display device 100, based on the electronically controlled first holographic grating layer 32 cooperating with the optical waveguide to control the selective emission of light, differs from the complex display structures of traditional liquid crystal displays and OLEDs, providing a simple structure that facilitates lightweight and thin design for the future development of display technology.

[0033] The optical waveguide substrate 10 can be made of glass. The light-emitting surface of the optical waveguide substrate 10 is located on the upper surface, and the light-incident surface is located on the side. That is, the light source 20 is also located on the side of the optical waveguide substrate 10, allowing light to enter the optical waveguide substrate 10 through a side-entry method, propagate within it, and then exit from the light-emitting surface. The first transparent electrode layer 31 and the second transparent electrode layer 33 are made of transparent material, allowing the light from the light source 20 to be projected outwards through the first transparent electrode layer 31 and the second transparent electrode layer 33.

[0034] It should be noted that the first holographic grating layer 32 of the grating structure 30 can be specifically achieved by coating a holographic material after the first transparent electrode layer 31 is formed. This holographic material is a photosensitive material that responds to the intensity or polarization state of the incident light field. Since the display device 100 requires the electronically controlled first holographic grating layer 32 to achieve display, the holographic material can be HPDLC (Holographic Polymer Dispersed Liquid Crystal). Specifically, the first holographic grating layer can be obtained using the principle of two-beam laser interference, and the holographic material responds to the light intensity information of the interference field to form droplets with random directional orientation inside. For a specific optical waveguide path, a specific incident light angle is designed, along with the incident light wavelength, incident angle, and desired outgoing light direction. This corresponds to the design of the recording beam and reference beam in the dual laser beams, resulting in a specific distribution of the first holographic grating layer 32. Thus, when light or conjugate light with the same phase, angle, and wavelength as the reference beam is irradiated onto the surface of the first holographic grating layer 32, the phase information of the recording beam can be recovered, and a specific outgoing light angle can be obtained through diffraction. It can be understood that by irradiating the holographic material with dual laser beams to form interference fringes on its surface, multiple interference fringes formed by laser irradiation are formed on the surface of the first holographic grating layer 32 facing the second transparent electrode layer 33. Optionally, along the direction away from the incident light surface, the angle between the multiple interference fringes and the normal to the outgoing light surface gradually increases. As the light rays decouple from the near lamp side to the far lamp side, the light propagation becomes weaker towards the far lamp side. To ensure that the amount of light decoupled from the near lamp side and the far lamp side is the same, the diffraction efficiency of the near lamp side needs to be designed to be lower than that of the far lamp side. Therefore, the diffraction efficiency can be adjusted by adjusting the tilt angle of the interference fringes.

[0035] Optionally, the first transparent electrode layer 31 includes a common electrode, and the second transparent electrode layer 33 includes multiple pixel electrodes, which are spaced apart on the first holographic grating layer 32. By providing multiple independent pixel electrodes, the first holographic grating layer 32 can be partitioned for control, allowing individual control over the light passing through the region of the first holographic grating layer 32 corresponding to each pixel electrode. Figure 2 As shown, when the common electrode is energized, and the first pixel electrode 331 and the third pixel electrode 333 are not energized, light can diffract through the corresponding regions of the first holographic grating layer 32. When the second pixel electrode 332 is energized, the corresponding region of the first holographic grating layer 32 will undergo total internal reflection of the light emitted from the light-emitting surface, allowing the light to continue propagating along the interior of the optical waveguide substrate 10. This further enables control according to different display pixel requirements, thereby further meeting usage needs.

[0036] Furthermore, the light source 20 is a white LED device, and the display device 100 also includes a color resist layer 40, which is disposed on the second transparent electrode layer 33. The color resist layer 40 includes multiple color resist blocks, including a blue color resist block 41, a green color resist block 42, and a red color resist block 43, with each color resist block corresponding to a pixel electrode. Specifically, the light source 20 can be a white LED device, and in order to display different colors of light, the color resist layer 40 is used for filtering so that the display device 100 can emit different colors of light. That is, the color resist layer 40 includes multiple color resist blocks, which can be blue color resist block 41, green color resist block 42, and red color resist block 43, so that when the white light emitted by the white LED device is diffracted through the first holographic grating, the light passing through the blue color resist block 41 outputs blue light, the light passing through the green color resist block 42 outputs green light, and the light passing through the red color resist block 43 outputs red light, thus meeting the display requirements.

[0037] Furthermore, the display device 100 also includes a first insulating layer 50 and a plurality of black matrices 60. The first insulating layer 50 is disposed between the color resist layer 40 and the second transparent electrode layer 33, and the plurality of black matrices 60 are all disposed on the first insulating layer 50, with one black matrix 60 disposed between adjacent color resist blocks. The insulating layer not only isolates the electrical connection between the color resist layer 40 and the second transparent electrode layer 33, but also provides flatness to ensure the stability of the subsequent placement of the color resist layer 40 and the black matrices 60. The plurality of black matrices 60 can reduce the color mixing effect of light passing through different color resist blocks. It should be noted that every three adjacent color resist blocks of different colors and the black matrices 60 between them constitute a color resist unit, realizing the color display of the display panel.

[0038] Optionally, the display device 100 further includes a protective layer 70, which covers the surface of the color resist layer 40 facing away from the second transparent electrode layer 33. This protective layer 70 can be a glass substrate, which not only protects the color resist layer 40 but also provides flatness for subsequent application of other film layers. Alternatively, the protective layer 70 can be a cover plate, made of fully transparent glass or other transparent material, to encapsulate the display device 100 and improve its protection.

[0039] Reference Figure 3The display device 100 of the second embodiment of this application includes an optical waveguide substrate 10, a light source 20, and a grating structure 30. The optical waveguide substrate 10 includes a light-emitting surface and a light-incident surface disposed on one side of the light-emitting surface. The light source 20 is disposed on the light-incident surface of the optical waveguide substrate 10. The grating structure 30 includes a first transparent electrode layer 31, a first holographic grating layer 32, and a second transparent electrode layer 33. The first transparent electrode layer 31 is disposed on the light-emitting surface of the optical waveguide. The first holographic grating layer 32 covers the first transparent electrode layer 31. The second transparent electrode layer 33 is disposed on the first holographic grating layer 32 and is disposed opposite to the first transparent electrode layer 31. The light source 20 is a white LED device.

[0040] Furthermore, the grating structure 30 includes a third transparent electrode layer 34, a second holographic grating layer 35, a fourth transparent electrode layer 36, a fifth transparent electrode layer 37, a third holographic grating layer 38, and a sixth transparent electrode layer 39, which are stacked sequentially. The third transparent electrode layer 34 and the fourth transparent electrode layer 36 are arranged opposite to each other, and the fifth transparent electrode layer 37 and the sixth transparent electrode layer 39 are arranged opposite to each other. The display device 100 also includes a first insulating layer 50, a second insulating layer 80, and a third insulating layer 90. The first insulating layer 50 is disposed between the second transparent electrode layer 33 and the third transparent electrode layer 34, the second insulating layer 80 is disposed between the fourth transparent electrode layer 36 and the fifth transparent electrode layer 37, and the third insulating layer 90 is disposed on the sixth transparent electrode layer 39. The first holographic grating layer 32 transmits first color light, the second holographic grating layer 35 transmits second color light, and the third holographic grating layer 38 transmits third color light. The first color light, the second color light, and the third color light are different.

[0041] It should be noted that the first color light, the second color light, and the third color light can be one of red, blue, and green light, respectively, and the first color light, the second color light, and the third color light are different. When fabricating the first holographic grating layer 32, it can be fabricated using the corresponding first color light. That is, assuming the first color light is red, the first holographic grating layer 32 is fabricated using red light during the dual-beam laser interference process. This ensures that the first holographic grating layer 32 can only diffract and transmit red light when the power is off, thus achieving the effect of filtering the light emitted by the white LED device. The red light passing through the first holographic grating layer 32, diffracted to a positive viewing angle, will not undergo total internal reflection after passing through the second holographic grating layer 35 and the third holographic grating layer 38 when the power is on, but will instead pass directly through. Similarly, the second holographic grating layer 35 and the third holographic grating layer 38 are fabricated using blue and green light, respectively, so that the first holographic grating layer 32, the second holographic grating layer 35, and the third holographic grating layer 38, in the power-off state, are respectively used to diffract red, blue, and green light. The first insulating layer 50, the second insulating layer 80, and the third insulating layer 90 not only isolate electrical connections but also provide flatness to facilitate the stability of subsequent film layer fabrication. It can be understood that the first transparent electrode layer 31, the second transparent electrode layer 33, the third transparent electrode layer 34, the fourth transparent electrode layer 36, the fifth transparent electrode layer 37, and the sixth transparent electrode layer 39 are all provided with partitioned electrodes, thereby allowing independent control of the switching between power-on and power-off states of portions of the first holographic grating layer 32, the second holographic grating layer 35, and the third holographic grating layer 38, thus controlling the diffraction of light. By designing a three-layer holographic grating layer to filter the light from the light source, the dispersion effect is further reduced, thereby improving the display effect of the display device 100. Furthermore, the display device 100 also has a color resist layer 40 disposed on the third insulating layer 90. The color resist layer 40 includes a blue color resist block, a green color resist block, and a red color resist block respectively disposed for each pixel, so as to perform secondary light filtering, thereby further improving the display color purity of the display device.

[0042] Reference Figure 4The display device 100 of the third embodiment of this application differs from the display device 100 of the first embodiment in that: the light source 20 is an ultraviolet LED device, and the display device 100 further includes a quantum dot conversion film 90a. The quantum dot conversion film 90a includes a blue quantum dot layer, a green quantum dot layer, and a red quantum dot layer spaced apart on the second transparent electrode layer 33. The blue quantum dot layer, the green quantum dot layer, and the red quantum dot layer are respectively disposed opposite to a pixel electrode. The light source 20 uses an ultraviolet LED device. When the light from the ultraviolet LED device passes through the first holographic grating layer 32 and then through the blue quantum dot layer, the green quantum dot layer, and the red quantum dot layer of the quantum dot conversion film 90a, it can respectively emit blue light, green light, and red light to meet display requirements.

[0043] Furthermore, the quantum dot conversion film 90a is also doped with scattering particles. These scattering particles are transparent nanoparticles, which scatter light, improving the uniformity of the displayed image and resulting in better viewing angle characteristics at 100°. The materials used for the scattering particles include one or more of cadmium sulfide, zinc sulfide, cadmium cesium sulfide, chromium telluride, titanium dioxide, zirconium dioxide, and polymethyl methacrylate. The size of the scattering particles is between 0.3 micrometers and 5 micrometers, including 0.3 micrometers, 2.6 micrometers, or 5 micrometers. The mass percentage of solid content in the scattering particles is between 0.1% and 10%, including 0.1%, 5%, or 10%. The size of the scattering particles between 0.3 micrometers and 5 micrometers reduces the difficulty of fabricating the quantum dot conversion film 90a. For example, when the scattering particle size is too large, the film layer is prone to unevenness; when the scattering particle size is too small, the effect of the scattering particles is not obvious. A mass percentage of solid content in the scattering particles between 0.1% and 10% effectively ensures the scattering effect of the scattering particles and avoids the impact of excessive scattering particles on light transmission.

[0044] Reference Figure 5The display device 100 of the fourth embodiment of this application differs from the display device 100 of the first embodiment in that: the light source 20 is a blue LED device, and the display device 100 further includes a quantum dot conversion film 90a. The quantum dot conversion film 90a includes a green quantum dot layer 90A, a red quantum dot layer 90B, and a transparent layer 90C, which are spaced apart on the second transparent electrode layer 33. The transparent layer 90C, the green quantum dot layer 90A, and the red quantum dot layer 90B are respectively disposed opposite to a pixel electrode. The light source 20 uses a blue LED device. When the light from the blue LED device passes through the first holographic grating layer 32 and then through the green quantum dot layer 90A and the red quantum dot layer 90B, it can emit green light and red light respectively. The light passing through the transparent layer 90C emits blue light, thus meeting the display requirements. It should be noted that the transparent layer 90C can be filled with photosensitive adhesive. The refractive index of the transparent layer 90C is greater than that of the red quantum dot layer 90B and the green quantum dot layer 90A. Because the red quantum dot layer 90B and the green quantum dot layer 90A have the ability to scatter light, light passing through them will have more exit angles. Therefore, by setting the refractive index of the transparent layer 90C to be greater than that of the red quantum dot layer 90B and the green quantum dot layer 90A, light passing through the transparent layer 90C can also have more exit angles, thereby improving the display characteristics of the display device 100. This does not change the original light transmission effect of the transparent layer 90C.

[0045] Reference Figure 6 The display device 100 of the fifth embodiment of this application differs from the display device 100 of the first embodiment in that: the light source 20 includes a red LED device 21, a blue LED device 22, and a green LED device 23 connected together, and the display device 100 also includes a control chip 90b, which is electrically connected to the red LED device 21, the blue LED device 22, and the green LED device 23 respectively. The control chip 90b can control the light source 20 to light up the red LED device 21, the green LED device 23, or the blue LED device 22 at different times, thereby allowing the light source 20 to emit different colors of light at different times, which, in conjunction with the first holographic grating layer 32, enables dynamic image display. That is, when a pixel needs to display red, the red LED device 21 of the light source 20 is controlled to emit light, and the pixel electrode in the corresponding area is not energized, so that the light can diffract through the first holographic grating layer 32. For pixel electrodes in areas where red is not needed, energization is applied to cause total internal reflection, allowing the light to continue propagating along the interior of the optical waveguide substrate 10. This allows each pixel to output different colors at different time sequences.

[0046] The above provides a detailed description of a display device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display device, characterized by comprising: The display device comprises: a light waveguide substrate comprising an out-coupling surface and an in-coupling surface arranged on one side of the out-coupling surface; a light source arranged on the in-coupling surface of the light waveguide substrate; and a grating structure comprising: a first transparent electrode layer arranged on the out-coupling surface of the light waveguide; a first holographic volume grating layer covering the first transparent electrode layer; a second transparent electrode layer arranged on the first holographic volume grating layer and opposite to the first transparent electrode layer; wherein the grating structure further comprises a third transparent electrode layer, a second holographic volume grating layer, a fourth transparent electrode layer, a fifth transparent electrode layer, a third holographic volume grating layer and a sixth transparent electrode layer arranged in sequence, and the third transparent electrode layer and the fourth transparent electrode layer are arranged opposite to each other, and the fifth transparent electrode layer and the sixth transparent electrode layer are arranged opposite to each other; the first holographic volume grating layer transmits first color light, the second holographic volume grating layer transmits second color light, and the third holographic volume grating layer transmits third color light, and the first color light, the second color light and the third color light are different. The first transparent electrode layer comprises a common electrode, and the second transparent electrode layer comprises a plurality of pixel electrodes arranged on the first holographic volume grating layer.

2. The display device of claim 1, wherein, The light source is a white light LED device, and the display device further comprises a color resistance layer arranged on the second transparent electrode layer, the color resistance layer comprising a plurality of color resistance blocks, the color resistance blocks comprising blue color resistance blocks, green color resistance blocks and red color resistance blocks, and one color resistance block corresponding to one pixel electrode.

3. The display device of claim 2, wherein, The display device further comprises a first insulating layer arranged between the color resistance layer and the second transparent electrode layer, and a plurality of black matrices arranged on the first insulating layer, and one black matrix arranged between adjacent color resistance blocks.

4. The display device of claim 3, wherein, The display device further comprises a protective layer covering the surface of the color resistance layer away from the second transparent electrode layer.

5. The display device of claim 3, wherein, The display device further comprises a first insulating layer arranged between the second transparent electrode layer and the third transparent electrode layer, a second insulating layer arranged between the fourth transparent electrode layer and the fifth transparent electrode layer, and a third insulating layer arranged on the sixth transparent electrode layer.

6. The display device of claim 1, wherein The light source is an ultraviolet light LED device, and the display device further comprises a quantum dot conversion film comprising a blue quantum dot layer, a green quantum dot layer and a red quantum dot layer arranged on the second transparent electrode layer in sequence, and the blue quantum dot layer, the green quantum dot layer and the red quantum dot layer are arranged opposite to one pixel electrode respectively.

7. The display device of claim 2, wherein ​ 8. The display device of claim 2, wherein, The light source is a blue LED device, and the display device further comprises a quantum dot conversion film, the quantum dot conversion film comprising a green quantum dot layer, a red quantum dot layer and a transparent layer arranged on the second transparent electrode layer, and the transparent layer, the green quantum dot layer and the red quantum dot layer are arranged opposite to one of the pixel electrodes respectively.

9. A display device as claimed in claim 7 or 8, characterized in that The quantum dot conversion film is further doped with scattering particles.

10. The display device of claim 2, wherein, The light source comprises a red LED device, a blue LED device and a green LED device connected in series, and the display device further comprises a control chip electrically connected to the red LED device, the blue LED device and the green LED device respectively.

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