CN111129271B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN111129271B CN111129271B CN201911374179.6A CN201911374179A CN111129271B CN 111129271 B CN111129271 B CN 111129271B CN 201911374179 A CN201911374179 A CN 201911374179A CN 111129271 B CN111129271 B CN 111129271B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
Abstract
The invention provides a display panel and a display device, wherein the display panel and the display device comprise a light-emitting layer and a light-reflecting layer which are oppositely arranged; the light-emitting layer comprises a plurality of light-emitting parts, a gap is formed between every two adjacent light-emitting parts, the light-emitting parts emit first light to the light-reflecting layer, the first light is reflected on the light-reflecting layer to form reflected light, and the reflected light penetrates through the gap to form emergent light; this scheme can reflect the light that Micro LED device sent to filter the light that high energy, penetrability are strong wherein, the injury that light that sends through reducing Micro LED device caused to the eyes has improved the security of Micro LED display screen.
Description
Technical Field
The invention relates to the technical field of display, in particular to the field of manufacturing of display devices, and particularly relates to a display panel and a display device.
Background
The Micro LED (Micro Light Emitting Diode) technology is a technology of a high-density Micro-sized LED array integrated on one chip, and a Micro LED display screen prepared by using the technology has the advantages of high brightness, high color gamut, high resolution, power saving, high reaction speed and the like.
However, the light emitted from the Micro LED device is not reflected in the existing display panel, so that a large amount of light which cannot be reflected and has high energy and strong penetrability is emitted into human eyes, which damages the human eyes, and the safety of the Micro LED display screen prepared by the Micro LED technology is low.
In summary, it is necessary to provide a display panel and a display device to solve the problem of human eye injury caused by high energy and strong penetrating light emitted by Micro LED devices in a Micro LED display screen.
Disclosure of Invention
The invention aims to provide a display panel and a display device, wherein a light-emitting layer comprises a plurality of light-emitting parts, a light-reflecting layer is arranged on one side of the light-emitting layer, which emits first light, the first light is reflected on the light-reflecting layer to form reflected light, and the reflected light penetrates through a gap to form emergent light, so that the problem that the light emitted by a Micro LED device in the prior art contains high-energy and strong-penetrability light, so that human eyes are injured is solved.
The embodiment of the invention provides a display panel, which comprises a light-emitting layer and a light-reflecting layer, wherein the light-emitting layer and the light-reflecting layer are oppositely arranged;
the light-emitting layer comprises a plurality of light-emitting parts, a gap is formed between every two adjacent light-emitting parts, and the light-emitting parts emit first light rays to the light-reflecting layer;
the light reflecting layer is used for reflecting the first light to form reflected light, and the reflected light penetrates through the gap to form emergent light.
In an embodiment, the light emitting layer further includes a plurality of optical filter portions for filtering light of different colors, the optical filter portions are disposed in the gaps, and the reflected light passes through the optical filter portions to form the outgoing light of a corresponding color.
In one embodiment, the light reflecting layer includes a plurality of light reflecting portions, and the light reflecting portions are disposed opposite to the gaps.
In one embodiment, the two light-filtering portions located at two sides of the same light-emitting portion are made of different materials or have different sizes, so that the corresponding emergent light has different colors.
In one embodiment, the plurality of light filtering portions at least includes two light filtering portions respectively composed of any two different materials of a color-resist material, a photoresist material or a photoluminescence material.
In an embodiment, the light emitting part is an inorganic light emitting diode, the light emitting part is a Mini/Micro LED, when the Mini/Micro LED is a blue Mini/Micro LED, two light filtering parts located on two sides of the same light emitting part are a red filter layer and a green filter layer formed by the color resistance material, the photoresist material or the photoluminescence material, and the reflected light passes through the red filter layer and the green filter layer to form red light and green light respectively.
In one embodiment, the light-emitting portion includes an auxiliary portion disposed around a side of the light-emitting portion away from the light-reflecting layer and both sides of the light-emitting portion close to the gap, and the auxiliary portion is used for transmitting or blocking light emitted by the light-emitting portion.
In one embodiment, when the light emitted by the light-emitting portion is blue light, the auxiliary portion is made of a light-transmitting material for transmitting the blue light emitted by the light-emitting portion; when the light emitted by the light emitting part is white light, the auxiliary part is made of a light shielding material and used for shielding the white light emitted by the light emitting part.
In an embodiment, when the light emitted by the light emitting portion is blue light, the auxiliary portion is made of a light-transmitting material for transmitting the blue light emitted by the light emitting portion, wherein the blue light transmitted by the light emitting portion and the reflected light respectively form a display screen by passing through red light and green light formed by two filter portions located on two sides of the same light emitting portion.
The embodiment of the invention also provides a display device, which comprises any one of the display panels.
The invention provides a display panel and a display device, wherein the display panel and the display device comprise a light-emitting layer and a light-reflecting layer which are oppositely arranged; the light-emitting layer comprises a plurality of light-emitting parts, a gap is formed between every two adjacent light-emitting parts, the light-emitting parts emit first light to the light-reflecting layer, the first light is reflected on the light-reflecting layer to form reflected light, and the reflected light penetrates through the gap to form emergent light. The light-reflecting layer is arranged on one side of the light-emitting layer, which emits the first light, so that the first light is reflected to form the emergent light; the harm of light emitted by the Micro LED device to human eyes is reduced, and therefore the safety of the Micro LED display screen is improved.
Drawings
The invention is further illustrated by the following figures. It should be noted that the drawings in the following description are only for illustrating some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a cross-sectional view of a first display panel according to an embodiment of the invention.
Fig. 2 is a cross-sectional view of a light emitting portion according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view of a second display panel according to an embodiment of the invention.
FIG. 4 is a top view of a thin-film transistor layer according to an embodiment of the invention.
Fig. 5 is a cross-sectional view of a third display panel according to an embodiment of the invention.
Fig. 6 is a cross-sectional view of a fourth display panel according to an embodiment of the invention.
Fig. 7 is a cross-sectional view of a fifth display panel according to an embodiment of the invention.
Fig. 8 is a cross-sectional view of a sixth display panel according to an embodiment of the invention.
Fig. 9 is a cross-sectional view of a seventh display panel according to an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "far away", "close", "transverse", "longitudinal", and the like indicate orientations or positional relationships based on the drawings, wherein "upper" simply means that a surface is above an object, specifically refers to a right above, obliquely above, or upper surface, and "close" means a side having a smaller distance from a target in comparison, and the above orientations or positional relationships are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
It should be noted that the drawings only provide the structures and/or steps which are relatively closely related to the present invention, and some details which are not related to the present invention are omitted, so as to simplify the drawings and make the present invention clear, but not to show that the actual devices and/or methods are the same as the drawings and are not limitations of the actual devices and methods.
The present invention provides a display device comprising a display panel as shown in fig. 1-9 or associated film layers therein.
In one embodiment, as shown in fig. 1, the display panel 00 includes a light emitting layer 10 and a light reflecting layer 20, where the light emitting layer 10 and the light reflecting layer 20 are disposed opposite to each other; the light emitting layer 10 includes a plurality of light emitting portions 101, a gap 102 is formed between two adjacent light emitting portions 101, the light emitting portions 101 emit first light 01 to the reflective layer 20, the reflective layer 20 is configured to reflect the first light 01 to form reflected light 02, and the reflected light 02 passes through the gap 102 to form emergent light 03.
Wherein, the composition material of the light reflecting layer 20 may include at least one of silver, aluminum, and glass, and the light reflecting efficiency of the light reflecting layer 20 may be greater than 80%, wherein for a certain point, the light reflecting efficiency represents: the ratio of the amount of emergent ray at the point to the amount of incident ray corresponding to the emergent ray. Specifically, the reflective layer 20 may be a silver-plated reflective layer, an aluminum-plated reflective layer, or a glass reflective sheet.
In one embodiment, the light emitting part 101 is an inorganic light emitting diode, and the width of the light emitting part 101 may be not less than 1 micron and not more than 10 microns; further, the width of the gap 102 between two adjacent light emitting portions 101 is also on the order of micrometers. It is understood that the light emitting part 101 may be prepared by Micro LED technology.
In one embodiment, as shown in fig. 2, the light emitting portion 101 may include a first semiconductor layer 1011, a second semiconductor layer 1012, and an inorganic layer 1013 provided between the first semiconductor layer 1011 and the second semiconductor layer 1012. The composition materials of the first semiconductor layer 1011 and the second semiconductor layer 1012 may respectively include P-type doped inorganic luminescent material and N-type doped inorganic luminescent material, and the composition material of the inorganic layer 1013 may include gallium nitride. The light emitting region 101 is for emitting monochromatic light. For example, the first light 01 reflected by the light emitting portion 101 may be white light or blue light.
For example, when the first light 01 reflected by the light emitting portion 101 is blue light, the inorganic layer 1013 may be made of a gallium nitride material; for another example, when the first light 01 reflected by the light emitting portion 101 is white light, a yellow fluorescent material or a quantum dot material may be coated on a side of the first semiconductor layer 1011 or the second semiconductor layer 1012 away from the inorganic layer 1013, so that the blue light is converted into white light after reacting with the yellow fluorescent material or the quantum dot material.
It can be understood that the luminance of the outgoing light 03 passing through each of the gaps 102 is determined by the luminous intensity of the two light emitting parts 101 on both sides of the gap, so that the luminous intensity of each of the light emitting parts 101 can be controlled separately, so that the luminance of the outgoing light 03 emitted from each of the gaps 102 meets the requirement.
In an embodiment, as shown in fig. 3 to 4, a thin film transistor layer 30 may be further disposed below the light emitting layer 10, the thin film transistor layer 30 may include a plurality of gate lines 301 and a plurality of data lines 302, the plurality of gate lines 301 and the plurality of data lines 302 are respectively disposed in parallel in a transverse direction and in parallel in a longitudinal direction, the plurality of gate lines 301 and the plurality of data lines 302 intersect to define a plurality of regions, each of the plurality of regions is used for carrying a thin film transistor unit or the gap 102, further, the thin film transistor units and the gaps 102 in each row and each column are alternately disposed, the thin film transistor units correspond to the light emitting portion 101, and the thin film transistor units include a first source electrode 303, a second source electrode 304, a drain electrode 305, and a gate electrode 306. It is understood that the thin-film transistor layer 30 may be made of a transparent material to ensure that the first light 01 is incident on the reflective layer 20.
Specifically, as shown in fig. 4, the light emitting portion 101 is connected between the corresponding drain 305 and the corresponding second source 304, and for example, the first semiconductor layer 1011 and the second semiconductor layer 1012 may be connected to the drain 305 and the second source 304, or the first semiconductor layer 1011 and the second semiconductor layer 1012 may be connected to the second source 304 and the drain 305, respectively. It should be noted that the second sources 304 and the first sources 303 respectively located at two sides of the same data line 302 are electrically connected, that is, the electrical signals of the second source 304 at the previous stage and the first source 303 at the next stage are the same.
It can be understood that the gate lines 306 in the same row are electrically connected to the same gate line 301, the gate line 301 controls the conduction of the first source 303 and the drain 305 of each of the thin film transistor units in the stage, and the data line 302 in the stage controls the magnitude of the current or the voltage of the drain 305 of the stage by transmitting an electrical signal to the first source 303 of the stage, so as to control the magnitude of the current or the voltage of the first semiconductor layer 1011 or the second semiconductor layer 1012 of each of the light emitting parts 101 in the plurality of light emitting parts 101 in the stage; the data line 302 of the next stage controls the magnitude of current or voltage of the second semiconductor layer 1012 or the first semiconductor layer 1011 of each of the plurality of light emitting sections 101 of the present stage by transmitting an electric signal to the second source electrode 304 of each of the plurality of thin film transistor cells of the present stage; finally, the magnitude of the current or voltage of the first semiconductor layer 1011 and the second semiconductor layer 1012 in the light emitting portion 101 determines the light emission of the light emitting portion 101.
In one embodiment, as shown in fig. 5, the light emitting layer 10 further includes a plurality of optical filters 103 for filtering light of different colors, the optical filters 103 are disposed in the gap 102, and the reflected light 02 passes through the optical filters 103 to form the emitted light 03 of a corresponding color.
Further, the two filter portions 103 located on both sides of the same light emitting portion 101 are different in composition material or size, so that the corresponding emitted light 03 is different in color. For example, in the same row or the same column, the three optical filter portions 103 arranged in succession may be different in material composition or size, so that the corresponding colors of the outgoing light 03 are red, green, and blue, respectively; for another example, the constituent materials or sizes of the four light-filtering portions 103 arranged in series in the same row or the same column may be different, so that the corresponding emitted light 03 may be light of any four colors of red, green, blue, yellow and white; for another example, the four filter portions 103 arranged in a rectangular array may have different materials or sizes, and the corresponding emitted light 03 may be light of any four colors, i.e., red, green, blue, yellow, and white. Wherein the order of the three or four colors is not limited. It is understood that when the color of the emitted light 03 is white, the luminance of the entire display panel 00 can be improved.
The plurality of light-filtering parts 103 at least comprise two light-filtering parts respectively composed of any two different materials of color-resisting materials, light-resisting materials and photoluminescence materials. Specifically, the plurality of optical filter portions 103 may be composed of the color-resistance material, such as an organic pigment, and when the wavelength corresponding to the color of the light irradiated onto the color-resistance material is close to the wavelength corresponding to the color exhibited by the color-resistance material itself, the color-resistance material may allow the light to pass therethrough and filter the light of other colors; for example, when the reflected light 02 is white light, that is, the light emitting part 101 is a white light Micro/Mini Led, the plural light filtering parts 103 may be a red filter layer, a green filter layer, and a blue filter layer respectively formed by a red color resistance material, a green color resistance material, and a blue color resistance material, and the white reflected light 02 may form red light, green light, and blue light through the red filter layer, the green filter layer, and the blue filter layer to form a display screen.
Further, on this basis, the plurality of light-filtering portions 103 may further include a transparent filter layer composed of the photoresist material, for example, composed of an organic transparent photoresist material, and light of any color may still show the original color of the light after penetrating through the photoresist material; similarly, when the reflected light 02 is white light, the white reflected light 02 passes through the red filter layer, the green filter layer, the blue filter layer and the transparent filter layer to form corresponding red light, green light, blue light and white light, so as to form a display picture.
Specifically, the plurality of light-filtering portions 103 may be composed of the photoluminescent material, for example, a quantum dot fluorescent luminescent material or an organic luminescent material, and the color composition thereof is the same as that described above, and it is not described herein again, and it can be understood that when the wavelength corresponding to the color of the light irradiated onto the photoluminescent material is shorter, the photoluminescent material can absorb blue light and emit red light or green light. Further, the light emitting part 101 may be a blue Micro/Mini Led, and in this case, the plurality of light filtering parts 103 may be filter layers respectively made of a red color resistance material and a green color resistance material, or filter layers respectively made of a photoluminescent material such as a red quantum dot and a photoluminescent material such as a green quantum dot, and further, the photoluminescent material may be a quantum dot material of cadmium selenide, such as a red quantum dot material and a green quantum dot material, and may respectively emit high-purity red light and green light under excitation of short wavelength of blue light.
In one embodiment, as shown in fig. 6, the light reflecting layer 20 includes a plurality of light reflecting portions 201, and the light reflecting portions 201 are disposed opposite to the gaps 102. Further, a substrate 40 may be disposed below the light-reflecting layer 20, where the substrate 40 is configured to support the plurality of light-reflecting portions 201, and further, the substrate 40 may be made of a material with a relatively low light-reflecting rate, such as glass or plastic, specifically, the light-reflecting efficiency of the substrate 40 is not higher than 10%, where an area corresponding to the light-emitting portion 101 on the substrate 40 is defined as a non-light-reflecting area 401.
It is understood that, if the plurality of light reflecting portions 201 are disposed opposite to the plurality of gaps 102, the first light 01 emitted from the light emitting portion 101 is substantially reflected on the light reflecting portions 201 to form the reflected light 02, and the non-light reflecting region 401 is substantially not reflected. Further, the width of the light reflecting portion 201 may be equal to the width of the gap 102, so that the reflected light 02 on the light reflecting portion 201 can sufficiently penetrate the gap 102 to form the outgoing light 03. For example, when the light reflecting portion 201 and the gap 102 do not completely overlap in the vertical direction, and the reflected light 02 is emitted in all directions, when the reflected light 02 located in the non-light reflecting region 401 is irradiated to the gap 102, the degree of inclination is large, and when the light filter portions 103 are provided in the gap 102, a cross color phenomenon occurs above a region between the adjacent two light filter portions 103.
In one embodiment, as shown in fig. 7 to 8, the light emitting part 101 includes an auxiliary part 1011, the auxiliary part 1011 is disposed around a side of the light emitting part 101 away from the reflective layer 20 and two sides of the light emitting part 101 close to the gap 102, and the auxiliary part 1011 is used for transmitting or blocking light emitted from the light emitting part 101. When the auxiliary portion 1011 is made of a transparent material, the light emitting portion 101 emits a second light ray 04 to a side of the light emitting layer 10 away from the reflective layer 20, and the second light ray 04 can pass through the auxiliary portion 1011; when the auxiliary portion 1011 is made of a light-shielding material, the auxiliary portion is used for shielding the second light 04 emitted from the light-emitting portion 101 to the side of the light-emitting layer 10 away from the light-reflecting layer 20.
For example, as shown in fig. 7, when the second light 04 emitted by the light emitting part 101 is blue light, and the color of the second light 04 is within a target color range, the auxiliary part 1011 is made of a light-transmitting material, specifically, the auxiliary part 1011 can be a light guide plate or other structure capable of assisting light emission, and the auxiliary part 1011 can make the light within the target color range uniformly emitted from the side of the light emitting layer 10 away from the reflective layer 20, so as to form a display screen by combining with the emitted light 03 formed through the light filtering part 103, any three or four colors of red light, green light, blue light and yellow light.
For another example, as shown in fig. 7, when the second light 04 emitted by the light emitting portion 101 is white light, the color of the second light 04 is not within the target color range, and the auxiliary portion 1011 is made of a light shielding material. Specifically, the auxiliary portion 1011 may be a black organic photoresist, and the auxiliary portion 1011 may shield the white light, so as to prevent the white light from emitting from the side of the light emitting layer 10 away from the reflective layer 20, so that color crosstalk occurs between adjacent light filters 103 and the display effect is affected.
In one embodiment, the target color range is a range of three colors, red, green, and blue. It can be understood that, since red, green and blue are generally three basic colors required for the display frame of the display panel 00, when the color of the second light 04 emitted by the light emitting portion 101 is blue, the auxiliary portion 1011 can be made of a light transmissive material, so that the second light 04 is emitted from the side of the light emitting layer 10 away from the light reflecting layer 20; in addition, the first light 01 emitted from the light emitting part 101 sequentially passes through the reflective layer 20 and the optical filter 103, and then the emitted light 03 is formed on the side of the light emitting layer 10 away from the reflective layer 20. Therefore, the light finally emitted from the side of the light-emitting layer 10 away from the light-reflecting layer 20 includes the outgoing light 03 and the second light 04.
It can be understood that, when the color of the second light 04 emitted by the light-emitting portion 101 is any color within the target color range, since the light representing any color within the target color range can be generated by the second light 04 and the corresponding emitted light 03 together, and the light representing other colors can be generated by the corresponding emitted light 03 only, the difference in the amount of light of different colors can be reduced by adjusting the sizes of the light-emitting portion 101 and the light-filtering portion 103.
In an embodiment, as shown in fig. 9, the display panel 00 further includes a flat layer 50 and a protective layer 60, the flat layer 50 is disposed between the light-reflecting layer 20 and the light-emitting layer 10, and the protective layer 60 is disposed on a side of the light-emitting layer 10 away from the light-reflecting layer 20. The planarization layer 50 may make the upper surfaces of the upper film layers of the light emitting layer 10 all be at the same level, and the protection layer 60 may have high hardness and scratch resistance, and may protect the outer surface of the display panel 00.
The invention provides a display panel and a display device, wherein the display panel and the display device comprise a light-emitting layer and a light-reflecting layer which are oppositely arranged; the light-emitting layer comprises a plurality of light-emitting parts, a gap is formed between every two adjacent light-emitting parts, the light-emitting parts emit first light to the light-reflecting layer, the first light is reflected on the light-reflecting layer to form reflected light, and the reflected light penetrates through the gap to form emergent light. The light-reflecting layer is arranged on one side of the light-emitting layer, which emits the first light, so that the first light is reflected to form the emergent light; the harm of light emitted by the Micro LED device to human eyes is reduced, and therefore the safety of the Micro LED display screen is improved.
The display panel and the display device provided by the embodiment of the present invention are described in detail above, and the principle and the embodiment of the present invention are explained in detail herein by applying specific examples, and the description of the above embodiments is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The display panel is characterized by comprising a light emitting layer and a light reflecting layer, wherein the light emitting layer and the light reflecting layer are oppositely arranged;
the light emitting layer includes:
a plurality of light emitting parts, a gap being provided between two adjacent light emitting parts among the plurality of light emitting parts, the light emitting parts emitting first light to the light reflecting layer;
a plurality of light-filtering portions, each of which is provided in a corresponding gap, for filtering light of different colors, respectively;
the light reflecting layer is used for reflecting the first light to form reflected light, the reflected light penetrates through the corresponding light filtering parts to form emergent light with corresponding colors, and the reflected light penetrates through the two light filtering parts positioned on two sides of the same light emitting part respectively to form emergent light with different colors;
wherein the light emitting part includes an auxiliary part provided around one side of the light emitting part away from the light reflecting layer and both sides of the light emitting part close to the gap.
2. The display panel according to claim 1, wherein the light reflecting layer includes a plurality of light reflecting portions, each of the light reflecting portions being disposed opposite to the corresponding gap.
3. The display panel according to claim 1, wherein two filter portions located on both sides of the same light emitting portion are different in composition material or size, so that the two filter portions respectively correspond to different colors of emitted light.
4. The display panel according to claim 1, wherein the plurality of filters include at least two filters respectively made of any two different materials selected from a color resist material, a photoresist material, and a photoluminescent material.
5. The display panel according to claim 4, wherein the light emitting portion is a Mini/Micro LED, and wherein when the Mini/Micro LED is a blue Mini/Micro LED, two light-filtering portions on both sides of the same light emitting portion are a red filter layer and a green filter layer, respectively, and the reflected light passes through the red filter layer and the green filter layer to form red light and green light, respectively;
the red filter layer is made of the color resistance material, the light resistance material or the photoluminescence material, and the green filter layer is made of the color resistance material, the light resistance material or the photoluminescence material.
6. The display panel according to claim 1, wherein the auxiliary portion is configured to transmit or block light emitted from the light emitting portion.
7. The display panel according to claim 6, wherein when the light emitted from the light emitting portion is blue light, the auxiliary portion is made of a light transmitting material for transmitting the blue light emitted from the light emitting portion; when the light emitted by the light emitting part is white light, the auxiliary part is made of a light shielding material and used for shielding the white light emitted by the light emitting part.
8. The display panel according to claim 7, wherein when the light emitted from the light emitting portion is blue light, the auxiliary portion is made of a light-transmitting material for transmitting the blue light emitted from the light emitting portion, and the blue light transmitted through the light emitting portion and the reflected light pass through red light and green light respectively formed by two filter portions located at two sides of the same light emitting portion to form a display screen.
9. A display device characterized in that it comprises a display panel according to any one of claims 1 to 8.
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| CN201911374179.6A CN111129271B (en) | 2019-12-23 | 2019-12-23 | Display panel and display device |
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| CN111129271B true CN111129271B (en) | 2021-08-03 |
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| CN110518149B (en) * | 2019-08-30 | 2021-11-26 | 京东方科技集团股份有限公司 | Display device and display panel |
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