CN111769137B - Display device - Google Patents
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- CN111769137B CN111769137B CN202010551789.5A CN202010551789A CN111769137B CN 111769137 B CN111769137 B CN 111769137B CN 202010551789 A CN202010551789 A CN 202010551789A CN 111769137 B CN111769137 B CN 111769137B
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- 239000000463 material Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
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- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/17—Passive-matrix OLED displays
- H10K59/179—Interconnections, e.g. wiring lines or terminals
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Abstract
The invention provides a display device, which is characterized in that a flat structure is formed on a grating structure, so that a flat signal wire at the uppermost part of the flat structure does not have a concave-convex upper surface due to the grating structure, and therefore, the flat signal wire with grating arrangement is not formed, when light is incident to the flat signal wire, the light is blocked by the flat signal wire and cannot enter the grating structure, and the incident light cannot generate grating reflection because the flat signal wire does not form a grating arrangement pattern.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device that makes incident light unable to generate grating reflection.
Background
With the demand of users for display devices with high screen ratios, various large panel manufacturers use a method of compressing the line width and line spacing of signal traces in the frame of the display device to the minimum. However, the signal traces are also easy to form a pattern with a grating arrangement, and when light is incident, the light is reflected by the grating arrangement pattern to generate bright and dark stripes, so that the viewing experience of a user is affected.
Fig. 1 and 2 are schematic diagrams of different constructive interference when light is incident on the grating structure 10. When the first incident light L 1 and the second incident light L 2 with the same wavelength λ and the incident angle a 1 are incident on the grating structure 10 at the same time, the first reflected light R 1 and the second reflected light R 2 with the winding angle a 2 are formed. The optical path difference of the second incident light L 2 is dsin (a 1) compared with the first incident light L 1, the optical path difference of the first reflected light R 1 is dsin (a 2) compared with the second reflected light R 2, so that the wave path difference of the first light ray (including the first incident light L 1 and the first reflected light R 1) and the second light ray (including the second incident light L 2 and the second reflected light R 2) is dsin (a 1)–dsin(a2) (as shown in fig. 1), if the angle of refraction a 2 is on the same side as the angle of incidence a 1, the difference in the wave path between the two light rays is dsin (a 1)+dsin(a2) (as shown in fig. 2), where d is the distance between the grating slits. When the difference of the wavelength of the two light rays is an integer multiple of the light wavelength λ (dsin (a 1)±dsin(a2) =mλ, m is an integer), the two light rays can interact with each other to form constructive interference, so as to generate bright and dark fringes.
Accordingly, there is a need to provide a display device to solve the problems of the prior art.
Disclosure of Invention
The invention aims to provide a display device for solving the problems existing in the prior art.
To achieve the above object, an aspect of the present invention provides a display device including:
a plurality of signal wires which are equidistantly arranged at intervals, each signal wire has a preset height and is used for transmitting an electric signal, and the signal wires form a grating structure with a concave-convex upper surface; and
The flat structure is arranged on the grating structure and comprises a first flat layer and a first flat signal wire, wherein the first flat signal wire is arranged on the first flat layer and used for flattening the first flat signal wire, the first flat signal wire is used for transmitting a first signal, and the flat structure is provided with a flat upper surface and is used for preventing incident light rays from being reflected by the grating structure.
Further, the planar structure further includes a second planar signal trace disposed between the grating structure and the first planar layer for one of transmitting a second signal and assisting the first planar signal trace in transmitting the first signal.
Optionally, the first planarization layer includes a first sub-planarization layer and a second sub-planarization layer, the second sub-planarization layer is disposed between the first sub-planarization layer and the first signal trace, and the flatness of the first signal trace is increased by introducing the second sub-planarization layer.
Optionally, the planar structure further includes a second planar layer and a third planar signal trace, the second planar layer and the third planar signal trace are sequentially disposed on the first planar signal trace, the second planar layer is configured to increase the flatness of the third planar signal trace, and the third planar signal trace is configured to one of transmit a third signal and assist the first planar signal trace to transmit the first signal.
Alternatively, the display device includes an organic light emitting diode display panel having an anode electrode and a cathode electrode that cause the light emitting layer to emit light when a bias voltage is applied, and the first flat signal wiring has the same material as one of the anode electrode and the cathode electrode.
Further, the display device includes an organic light emitting diode display panel having an anode electrode and a cathode electrode that cause the light emitting layer to emit light when a bias voltage is applied, and the third flat signal wiring has the same material as one of the anode electrode and the cathode electrode.
Optionally, the display device further includes a protection window disposed above the flat structure for protecting the grating structure and the flat structure, an area of the grating structure and the flat structure covered by the protection window is a light shielding area, when the second flat signal trace is used for assisting the first flat signal trace to transmit the first signal, the first flat signal trace is connected with the second flat signal trace through a first via hole, and the first via hole is correspondingly disposed in the first flat layer on the second flat signal trace in the light shielding area.
Further, the first via hole comprises a large opening and a plurality of small openings, the aperture of the large opening is larger than that of the small opening, and the first flat signal wire is connected with the second flat signal wire through the large opening and the small openings.
Further, the grating structure comprises:
the signal wires are arranged on the first insulating layer; and
The second insulating layer covers the plurality of signal wires, and the second insulating layer enables the second insulating layer to have a concave-convex upper surface along with the plurality of signal wires with a preset height.
According to the invention, the flat structure is formed on the grating structure, so that the flat signal wire at the uppermost part of the flat structure cannot have a concave-convex upper surface due to the grating structure, and therefore, the flat signal wire with grating arrangement cannot be formed, when light is incident to the flat signal wire, the light is blocked by the flat signal wire and cannot enter the grating structure, and the incident light cannot generate grating reflection because the flat signal wire does not form a grating arrangement pattern.
Drawings
Fig. 1 is a schematic diagram of the principle of the first constructive interference of light rays incident on a grating structure.
Fig. 2 is a schematic diagram of the principle of the second constructive interference when light is incident on the grating structure.
Fig. 3 is a schematic top view of a display device having a display area, a light leakage area, and a light shielding area according to an embodiment of the invention.
Fig. 4 to 11 are partial side views of a display device along AA' direction in the light leakage area of fig. 3 according to first to eighth embodiments of the present invention, respectively.
Fig. 12 is a side view of the display device in the BB' direction in fig. 3 according to the first embodiment of the present invention.
Fig. 13 is a side view of the display device having the first via hole with a large opening in the BB' direction in fig. 3 according to the second embodiment of the present invention.
Fig. 14 is a side view of the display device having the first via hole of the small opening in the BB' direction of fig. 3 according to the second embodiment of the present invention.
Fig. 15 is a top view of a display device having a first via with a large opening and a small opening according to a second embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention more clear and clear, the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The following description of the embodiments refers to the accompanying drawings, which illustrate embodiments of the invention that may be practiced. The directional terms mentioned in the present invention are merely referring to the directions of the additional drawings. Accordingly, directional terminology is used to describe and understand the invention and is not limiting of the invention.
Referring to fig. 3, fig. 3 is a schematic top view of a display device having a display area, a light leakage area, and a light shielding area according to an embodiment of the invention.
Referring to fig. 3 and 4, fig. 4 is a partial side view of a display device along AA' direction in the light leakage area of fig. 3 according to a first embodiment of the present invention. The display device comprises a grating structure 11 and a planar structure 12. In the present embodiment, the grating structure 11 includes a first insulating layer 111, a plurality of signal traces 112, and a second insulating layer 113, wherein the plurality of signal traces 112 are equidistantly disposed on the first insulating layer 111 at intervals to form a grating arrangement, and each signal trace 112 has a predetermined height for transmitting an electrical signal; the second insulating layer 113 covers the plurality of signal traces 112, and the second insulating layer 113 forms a concave-convex upper surface on the second insulating layer 112 along with the plurality of signal traces 112 having a predetermined height, that is, the plurality of signal traces 112 form a concave-convex upper surface on the grating structure 11.
With continued reference to fig. 3 and 4, the planar structure 12 is disposed on the grating structure 11 and includes a first planar layer 121 and a first planar signal trace 122, the first planar signal trace 122 is disposed on the first planar layer 121, that is, the first planar layer 121 and the first planar signal trace 122 are sequentially disposed on the second insulating layer 113, the first planar layer 121 is used for planarizing the first planar signal trace 122, the first planar signal trace 122 is used for transmitting the first signal, and since the first planar layer 121 has a planar upper surface, the first planar signal trace 122 disposed thereon also has a planar upper surface, that is, the planar structure 12 has a planar upper surface, such that the first planar signal trace 122 does not form an upper surface with a grating reflection effect due to the concave-convex upper surface of the grating structure 11, when the light is incident on the first planar signal trace 122 with the planar upper surface, the first planar signal trace 122 can be blocked by the first planar signal trace 122 and cannot enter the grating structure 11 (such that the first planar signal trace 11 generates reflection patterns) and no reflection cannot be generated by the first planar signal trace 122.
Referring to fig. 3 and 5, fig. 5 is a partial side view of a display device along AA' direction in the light leakage area of fig. 3 according to a second embodiment of the present invention. Compared to the first embodiment, the flat structure 22 in the second embodiment of the present invention further includes a second flat signal trace 223 disposed between the grating structure 21 and the first flat signal trace 221, i.e. the second flat signal trace 223, the first flat layer 221, and the first flat signal trace 222 are sequentially disposed on the second insulating layer 213. The second flat signal trace 223 may be used to transmit a second signal, or the first flat signal trace 222 and the second flat signal trace 223 are connected through a first via (to be described later), so that the second flat signal trace 223 may assist in transmitting the first signal, and increase the conductivity of the first flat signal trace 222 in transmitting the first signal.
Referring to fig. 3 and 6, fig. 6 is a partial side view of a display device with a light leakage area along AA' direction in fig. 3 according to a third embodiment of the present invention. Compared to the first embodiment, the first planarization layer 321 in the third embodiment of the present invention includes a first sub-planarization layer 3211 and a second sub-planarization layer 3212, the second sub-planarization layer 3212 is disposed between the first sub-planarization layer 3211 and the first flat signal trace 322, i.e. the first sub-planarization layer 3211, the second sub-planarization layer 3212, and the first flat signal trace 322 are sequentially disposed on the second insulation layer 313.
Referring to fig. 3 and 7, fig. 7 is a partial side view of a display device with a light leakage area along AA' direction in fig. 3 according to a fourth embodiment of the present invention. Compared to the second embodiment, the first planarization layer 421 in the fourth embodiment of the present invention includes the first sub-planarization layer 4211 and the second sub-planarization layer 4212, wherein the second sub-planarization layer 4212 is disposed between the first sub-planarization layer 4211 and the first planarization signal trace 422, i.e. the second planarization signal trace 423, the first sub-planarization layer 4211, the second sub-planarization layer 4212, and the first planarization signal trace 422 are sequentially disposed on the second insulating layer 413.
By introducing the second sub-planarization layer 3212/4212, the flatness of the first flat signal traces 322/422 of the planarization structure 32/42 is increased, so that the first flat signal traces 322/422 are less likely to form a grating arrangement pattern to generate grating reflection.
Referring to fig. 3 and 8 to 11, fig. 8 is a partial side view of a display device according to a fifth embodiment of the present invention, in which the light leakage area is along the AA 'direction in fig. 3, fig. 9 is a partial side view of a display device according to a sixth embodiment of the present invention, in which the light leakage area is along the AA' direction in fig. 3, fig. 10 is a partial side view of a display device according to a seventh embodiment of the present invention, in which the light leakage area is along the AA 'direction in fig. 3, and fig. 11 is a partial side view of a display device according to an eighth embodiment of the present invention, in which the light leakage area is along the AA' direction in fig. 3. Based on the first to fourth embodiments, the flat structure 52/62/72/82 in the fifth to eighth embodiments further includes the second flat layer 524/624/724/824 and the third flat signal trace 525/625/725/825, which are sequentially disposed on the first flat signal trace 522/622/722/822, i.e., in the fifth embodiment, compared to the first embodiment, the first flat layer 521, the first flat signal trace 522, the second flat layer 524 and the third flat signal trace 525 are sequentially disposed on the second insulating layer 513; in the sixth embodiment, compared to the second embodiment described above, the second flat signal trace 623, the first flat layer 621, the first flat signal trace 622, the second flat layer 624, and the third flat signal trace 625 are sequentially disposed on the second insulating layer 613 according to the sixth embodiment of the present invention; in the seventh embodiment, compared to the third embodiment, the first sub-flat layer 7211, the second sub-flat layer 7212, the first flat signal trace 722, the second flat layer 724, and the third flat signal trace 725 are sequentially disposed on the second insulating layer 713; in the eighth embodiment, compared to the fourth embodiment described above, the second flat signal trace 823, the first sub-flat layer 8211, the second sub-flat layer 8212, the first flat signal trace 822, the second flat layer 824, and the third flat signal trace 825 are sequentially disposed on the second insulating layer 813. The third flat signal trace 525/625/725/825 may be used to transmit a third signal, or the first flat signal trace 522/622/722/822 and the third flat signal trace 525/625/725/825 may be connected by a second via (described later), so that the third flat signal trace 525/625/725/825 may assist in transmitting the first signal, and increase the conductivity of the first flat signal trace 522/622/722/822 in transmitting the first signal.
By introducing the second planarization layer 524/624/724/824, the flatness of the third flat signal trace 525/625/725/825 of the flat structure 52/62/72/82 is increased, so that the third flat signal trace 525/625/725/825 is less likely to form a grating arrangement pattern to generate grating reflection.
Referring to fig. 12 through 14 in combination with fig. 3, fig. 12 is a side view of a display device according to a first embodiment of the present invention in the direction BB ' in fig. 3, fig. 13 is a side view of a display device according to a second embodiment of the present invention having a first via 226 with a large opening in the direction BB ' in fig. 3, and fig. 14 is a side view of a display device according to a second embodiment of the present invention having a first via 227 with a small opening in the direction BB ' in fig. 3. The display device further comprises a protection window (cover window) 13/23 and a display area or an effective area (ACTIVE AREA) 14/24 of the display panel, wherein the protection window 13/23 is disposed above the flat structure 12/22 for protecting the grating structure 11/22 and the flat structure 12/22, and a region of the grating structure 11/22 and the flat structure 12/22 covered by the protection window 13/23 is a light shielding region, and a region not covered by the protection window 13/23 is a light leakage region (generally caused by deviation of process lamination); the display area 14/24 of the display panel is disposed adjacent to the grating structure 11/22 and the flat structure 12/22, and the display area 14/24 of the display panel is configured to emit light for displaying, and receives at least one of the electrical signal, the first signal, the second signal, and the third signal required for emitting light for displaying.
With continued reference to fig. 13 and 14, in the second embodiment, when the second flat signal trace 223 is used to assist in transferring the first signal, the first flat signal trace 222 may be connected to the second flat signal trace 223 through the first via 226/227, where the first via 226/227 may be one first via 226 with a large opening (as shown in fig. 13) or a plurality of first vias 227 with small openings (as shown in fig. 14), where the first via 226 with a large opening has a larger aperture than the first via 226 with a smaller aperture, and the first via 226/227 corresponds to the first flat layer 221 disposed on the second flat signal trace 223 in the light shielding region. In another embodiment, as shown in fig. 15, the display device actually includes a plurality of first flat signal traces 222, and each of the first flat signal traces 222 can be connected to the second flat signal trace 223 through one of the first large-hole via 226 and the first small-hole via 227, specifically, the first large-hole via 226 and the first small-hole via 227 can be used in the display device at the same time.
It will be appreciated that for simplicity of explanation, side views of all embodiments in the present specification are not shown here, and that the side views not shown can be obtained from the top views of fig. 6 to 11, which do not affect understanding of the focus of the present specification on the invention described in the present specification.
Specifically, in the fourth, sixth, and eighth embodiments, when the second flat signal wire 423/623/823 is used to assist in transferring the first signal, the first flat signal wire 422/622/822 may be connected to the second flat signal wire 423/623/823 through a first via (not shown) having a large opening or through a first via (not shown) having a small opening, and the first via is correspondingly disposed in the first flat layer 421/621/821 on the second flat signal wire 423/623/823 in the light shielding region; in the fifth to eighth embodiments, when the third flat signal trace 525/625/725/825 is used to assist in transferring the first signal, the first flat signal trace 522/622/722/822 may also be connected to the third flat signal trace 525/625/725/825 through a second via (not shown) having a large opening or through a second via (not shown) having a small opening, and the second via corresponds to the second flat layer 524/624/724/824 on the first flat signal trace 522/622/722/822 disposed in the light shielding region, wherein the first via of the large opening has a smaller pore size than the first via of the small opening and the second via of the large opening has a larger pore size than the second via of the small opening.
In the present invention, when the display panels of the first to eighth embodiments are organic light emitting diode display panels, the organic light emitting diode display panels have an anode electrode and a cathode electrode that emit light from the light emitting layer when a bias voltage is applied, and in order to save the manufacturing cost of implementing the present invention, the first flat signal trace 122/222/322/422, the second flat signal trace 223/423/623/823, or the third flat signal trace 525/625/725/825 may be simultaneously prepared when the anode electrode or the cathode electrode is formed. That is, the first flat signal wire 122/222/322/422 may have the same material as one of the anode electrode and the cathode electrode, the second flat signal wire 223/423/623/823 may have the same material as one of the anode electrode and the cathode electrode, and the third flat signal wire 525/625/725/825 may have the same material as one of the anode electrode and the cathode electrode.
Specifically, for example, in the first embodiment and the third embodiment, the first flat signal wirings 122/322 are simultaneously prepared at the time of forming the anode electrode (or the cathode electrode); for example, in the second embodiment and the fourth embodiment, the second flat signal wiring 223/423 is simultaneously prepared when the cathode electrode is formed, and the first flat signal wiring 222/422 is simultaneously prepared when the anode electrode is formed; for example, in the fifth to eighth embodiments, the first flat signal wiring 522/622/722/822 is simultaneously prepared at the time of forming the cathode electrode, and the third flat signal wiring 525/625/725/825 is simultaneously prepared at the time of forming the anode electrode.
It should be noted that the invention is also applicable to other types of grating structures, not limited to the grating structures described in the present specification. In order to avoid excessive details, the drawings are marked with icons which are not mentioned in the present specification, and it can be known from the relative positions of the drawings, for example, the reference numeral 211 in fig. 5, which is not mentioned in the present specification, but the reference numeral 211 can be a first insulating layer according to fig. 4, and so on.
In an embodiment, the present invention is applicable to the fan-out (fanout) area of the display device, so the plurality of signal traces 112/212/312/412/512/612/712/812 may be fan-out signal traces, and when the second flat signal trace 223/423/623/823 and/or the third flat signal trace 525/625/725/825 are used to assist in the transmission of the first signal, the first flat signal trace 122/222/322/422/522/622/722/822, the second flat signal trace 223/423/623/823 and/or the third flat signal trace 525/625/725/825 are power signal traces. Further, since the fan-out signal traces are generally disposed at equal intervals, and the market demands for narrow frames, the line width and line pitch of the fan-out signal traces are reduced to a minimum, but the fan-out signal traces are easy to form a grating arrangement. According to the invention, the flat layer is formed between the power signal wiring and the fan-out signal wiring, so that the power signal wiring has a flat upper surface, and when light is incident to the power signal wiring, grating reflection cannot be generated. Therefore, in the fan-out area of the display device, the technical problem of grating reflection can be solved by the implementation mode provided by the invention, and the method has remarkable industrial applicability.
The present invention forms the flat structure 12/22/32/42/52/62/72/82 on the grating structure 11/21/31/41/51/61/71/81, so that the first flat signal trace 122/222/322/422 or the third flat signal trace 525/625/725/825 located at the uppermost side of the flat structure 12/22/32/42/52/62/72/82 does not have a concave-convex upper surface due to the grating structure 11/21/31/41/51/61/71/81, and thus the first flat signal trace 122/222/322/422 or the third flat signal trace 525/625/725/825 having a grating arrangement is not formed, so that when the light is incident on the first flat signal trace 122/222/322/422 or the third flat signal trace 525/625/725/825, the light is blocked by the first flat signal trace 122/222/322/422 or the second flat signal trace 525/625/725/825 and cannot enter the grating structure 11/21/31/41/51/61/71/81, and the incident light cannot generate grating reflection because the first flat signal trace 122/222/322/422 or the third flat signal trace 525/625/725/825 does not form a grating arrangement pattern.
Although the present application has been described with reference to the preferred embodiments, it should be understood that the present application is not limited to the preferred embodiments, and that various changes and modifications can be made by one skilled in the art without departing from the scope of the application as defined in the appended claims.
Claims (7)
1. A high screen duty cycle display device comprising a display region, a light blocking region, and a light leakage region between the display region and the light blocking region, comprising:
a plurality of signal wires which are equidistantly arranged at intervals, each signal wire has a preset height and is used for transmitting an electric signal, and the signal wires form a grating structure with a concave-convex upper surface; and
The flat structure is arranged on the grating structure and comprises a first flat layer and a first flat signal wire, the first flat signal wire is arranged on the first flat layer, the first flat layer is used for flattening the first flat signal wire, the first flat signal wire is used for transmitting a first signal, and the flat structure is provided with a flat upper surface and is used for preventing incident light rays from being reflected by the grating structure;
The protection window is arranged above the flat structure for a certain distance and is used for protecting the grating structure and the flat structure, the area, covered by the protection window, of the grating structure and the flat structure is the shading area, and the flat structure at least covers the shading area and the light leakage area;
The flat structure further comprises a second flat signal wire arranged between the grating structure and the first flat layer and used for assisting the first flat signal wire to transmit the first signal, the first flat signal wire is connected with the second flat signal wire through a first via hole, and the first via hole is correspondingly arranged in the first flat layer on the second flat signal wire in the shading area.
2. The high-screen-ratio display device according to claim 1, wherein: the first flat layer includes a first sub-flat layer and a second sub-flat layer disposed between the first sub-flat layer and the first flat signal trace, and the flatness of the first flat signal trace is increased by introducing the second sub-flat layer.
3. The high-screen-ratio display device according to claim 1 or 2, characterized in that: the flat structure further comprises a second flat layer and a third flat signal wire, the second flat layer and the third flat signal wire are sequentially arranged on the first flat signal wire, the second flat layer is used for increasing the flatness of the third flat signal wire, and the third flat signal wire is used for transmitting a third signal and assisting the first flat signal wire to transmit one of the first signals.
4. The high-screen-ratio display device according to claim 1 or 2, characterized in that: the high-screen-ratio display device includes an organic light emitting diode display panel having an anode electrode and a cathode electrode that cause a light emitting layer to emit light when a bias voltage is applied, the first flat signal wiring having the same material as one of the anode electrode and the cathode electrode.
5. A high screen duty cycle display device as recited in claim 3, wherein: the high-screen-ratio display device includes an organic light emitting diode display panel having an anode electrode and a cathode electrode that cause the light emitting layer to emit light when a bias voltage is applied, and the third flat signal wiring has the same material as one of the anode electrode and the cathode electrode.
6. The high-screen-ratio display device according to claim 1, wherein: the first via hole comprises a large opening and a plurality of small openings, the aperture of the large opening is larger than that of the small opening, and the first flat signal wiring is connected with the second flat signal wiring through the large opening and the small openings.
7. The high screen duty cycle display device of claim 1, wherein the grating structure comprises:
the signal wires are arranged on the first insulating layer; and
The second insulating layer covers the plurality of signal wires, and the second insulating layer enables the second insulating layer to have a concave-convex upper surface along with the plurality of signal wires with a preset height.
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| CN202010551789.5A CN111769137B (en) | 2020-06-17 | 2020-06-17 | Display device |
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| CN202010551789.5A CN111769137B (en) | 2020-06-17 | 2020-06-17 | Display device |
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|---|---|---|---|---|
| CN103326239B (en) * | 2013-05-23 | 2015-12-02 | 中国科学院半导体研究所 | Composite configuration tunable grating external-cavity two-mode laser |
| JP6588299B2 (en) * | 2015-10-21 | 2019-10-09 | 株式会社ジャパンディスプレイ | Display device |
| JP6926169B2 (en) * | 2018-03-28 | 2021-08-25 | 堺ディスプレイプロダクト株式会社 | Organic EL display device and its manufacturing method |
| KR102572719B1 (en) * | 2018-04-03 | 2023-08-31 | 삼성디스플레이 주식회사 | Display device |
| KR102573641B1 (en) * | 2018-07-02 | 2023-09-01 | 삼성디스플레이 주식회사 | Display device |
| CN109309111A (en) * | 2018-09-18 | 2019-02-05 | 武汉华星光电半导体显示技术有限公司 | Flexible display panels, flexible display apparatus and flexible display panels preparation method |
| CN109686243A (en) * | 2019-01-31 | 2019-04-26 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
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2020
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