CN112509477A - Display panel - Google Patents
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- CN112509477A CN112509477A CN202011410322.5A CN202011410322A CN112509477A CN 112509477 A CN112509477 A CN 112509477A CN 202011410322 A CN202011410322 A CN 202011410322A CN 112509477 A CN112509477 A CN 112509477A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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Abstract
The invention provides a display panel, which comprises sub-display panels distributed in an array manner and a light supplementing component positioned in a gap of the sub-display panels, wherein the light supplementing component comprises a semi-transmission semi-reflecting plate and a total reflecting plate, the semi-transmission semi-reflecting plate is arranged close to the edge of the sub-display panels and extends to a display area, the total reflecting plate is positioned above the gap of the sub-display panels, the total reflecting plate and the semi-transmission semi-reflecting plate are correspondingly arranged, a light source in the display area vertically emits light, about 50% of the light is reflected when passing through the semi-transmission semi-reflecting plate, the other 50% of the light is reflected onto the total reflecting plate, and the reflected light is reflected again on the total reflecting plate.
Description
Technical Field
The invention relates to the technical field of tiled display, in particular to a display panel.
Background
Micro Light Emitting diodes (Micro LEDs) are a new generation of display technology, and have self-luminous display characteristics, and compared with the existing Organic Light-Emitting Diode (OLED) technology, Micro LED display devices have the advantages of higher brightness, better luminous efficiency, and lower power consumption.
The bottom layer of the Micro LED display device is manufactured into an LED display driving circuit by a normal CMOS integrated circuit manufacturing process, and then a Micro LED array is manufactured on the integrated circuit, so that a Micro display screen, namely a reduced version of the LED display screen, is realized and reaches the micron level. Because two adjacent Micro LED concatenations together, produce the concatenation position, concatenation department light is more weak, warpage, unevenness, leads to the Micro LED lamp plate to produce the dark line in the concatenation position.
To sum up, a new display panel structure needs to be designed to solve the technical problems that the splicing position of the display panel in the prior art generates a dark line, the luminous color tone of the splicing position is inconsistent with the brightness of a normal luminous area, and the display quality of the display panel is affected.
Disclosure of Invention
The embodiment of the invention provides a display panel, which can solve the technical problems that in the prior art, a dark line is generated at the splicing position of the display panel, the luminous color tone of the splicing position is inconsistent with the brightness of a normal luminous area, and the display quality of the display panel is influenced.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the embodiment of the invention provides a display panel, which at least comprises a first sub display panel and a second sub display panel which are spliced, wherein a light supplementing component is arranged at the joint of the first sub display panel and the second sub display panel, the light supplementing component comprises a total reflection piece and light guide pieces extending towards two sides of the total reflection piece, and the light guide pieces are covered with light-emitting pixels, wherein the light guide pieces guide light emitted by the light-emitting pixels into the total reflection piece, and the total reflection piece emits the guided light from the joint of the first sub display panel and the second sub display panel.
According to a preferred embodiment of the present invention, the light guide member includes a first light guide member and a second light guide member, the first light guide member is provided with a first transflective plate, the second light guide member is provided with a second transflective plate, the first transflective plate is located at an edge of the first sub-display panel, and the second transflective plate is located at an edge of the second sub-display panel.
According to a preferred embodiment of the present invention, the total reflection element includes a first total reflection plate and a second total reflection plate disposed in a butt joint manner, the first transflective plate has an inclined direction facing the first reflection plate, and the second transflective plate has an inclined direction facing the second reflection plate.
According to a preferred embodiment of the present invention, a first full-transmission plate is disposed above the first transflective plate in parallel, and a second full-transmission plate is disposed above the second transflective plate in parallel.
According to a preferred embodiment of the present invention, the first transflective plate and the second transflective plate are both polyvinyl alcohol films, the first reflective plate and the second reflective plate are both glass substrates, and the first full-transparent plate and the second full-transparent plate are both transparent polyimide films.
According to a preferred embodiment of the present invention, the total reflection light of the first half-transmissive half-reflective plate and the total reflection light of the second half-transmissive half-reflective plate are both in the range of 20% to 50%, and the total reflection light of the first half-transmissive half-reflective plate and the total reflection light of the second half-transmissive half-reflective plate are both in the range of 50% to 70%.
According to a preferred embodiment of the present invention, horizontal angles of the first half-transmissive half-reflective plate, the second half-transmissive half-reflective plate, the first reflective plate and the second reflective plate are all acute angles.
According to a preferred embodiment of the present invention, the first light guide member, the second light guide member and the total reflection member are filled with transparent media, and refractive indexes of the transparent media in the first light guide member and the second light guide member are greater than or equal to that of the transparent media in the total reflection member.
According to a preferred embodiment of the present invention, the horizontal lengths of the light guide members are all the pitches of 1 to 5 light emitting pixels.
According to a preferred embodiment of the present invention, the display panel is an OLED display panel, a mini-LED display panel or a Micro LED display panel.
Has the advantages that: the embodiment of the invention provides a display panel, which comprises sub display panels distributed in an array manner and a light supplementing component positioned in a gap of the sub display panels, wherein the light supplementing component comprises a semi-transmission semi-reflecting plate and a total reflecting plate, the semi-transmission semi-reflecting plate is arranged close to the edge of the sub display panels and extends to a display area, the total reflecting plate is positioned above the gap of the sub display panels, the total reflecting plate and the semi-transmission semi-reflecting plate are correspondingly arranged, a light source in the display area vertically emits light, about 50% of the light is reflected when passing through the semi-transmission semi-reflecting plate, the other 50% of the light is reflected to the total reflecting plate, and the reflected light is reflected again on the total reflecting plate, so that the vertical light emission of the frame and the gap of the sub display panels is realized, the existence of a dark area can be eliminated, a seamless spliced display screen is realized, and the display uniformity.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken at A1-A2 of FIG. 1.
Fig. 3 is a schematic view of a light guide plate structure in a 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. 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.
The invention aims at the technical problem that the display quality in the display panel is influenced because the splicing position of the display panel in the prior art generates a dark line and the luminous hue of the splicing position is inconsistent with the brightness of a normal luminous area.
As shown in fig. 1, an embodiment of the present invention provides a display panel 10, preferably an OLED display panel, a mini-LED display panel or a Micro LED display panel, where the display panel 10 includes at least two sub display panels arranged in a splicing manner, the display panel 10 in this embodiment includes a first sub display panel 11, a second sub display panel 12, a third sub display panel 13 and a fourth sub display panel 14, the first sub display panel 11, the second sub display panel 12, the third sub display panel 13 and the fourth sub display panel 14 are preferably identical in shape and arranged in a field shape, a light supplement member 107 is disposed at a gap and an edge of each of the sub display panels, and the light supplement member 107 covers a non-display area and a gap of two adjacent sub display panels. The light supplement component 107 guides the light in the display area into the non-display area and the gap of the sub-display panel to be emitted, so that the display panel 10 emits light uniformly, and the light emission quality of the display panel 10 is improved.
The light supplement member includes a total reflection member 173 and light guides extending to both sides of the total reflection member 173, and the total reflection member 173 preferably covers the non-display region and the gap between two adjacent sub-display panels. The light guide covers the light emitting pixels of the display panels on both sides of the splice. The total reflection member 173 is inserted into the gap between the array splicing sub-display panels, the light guide member guides the light in the display area into the splicing position and the frame, and the total reflection member 173 emits the guided light from the splicing position and the frame, so that the effective display screen occupation ratio of the display panel 10 is improved, the uniform light emission of the display panel 10 is realized, and the light emission quality of the display panel 10 is improved.
To more clearly show the point of the invention, the present invention cuts a section a1-a2 between the first sub display panel 11 and the second sub display panel 12 in fig. 1. As shown in fig. 2, the display panel 10 includes a flexible substrate 101, the flexible substrate 101 includes a first flexible layer, a water blocking layer and a second flexible layer, the first flexible layer and the second flexible layer are preferably made of yellow polyimide, the water blocking layer is made of an inorganic insulating material, a driving circuit layer 102 is disposed on the flexible substrate 101, the driving circuit layer 102 includes a first sub-display panel 11 and a second sub-display panel 12, the first sub-display panel 11 and the second sub-display panel 12 adopt an independent packaging design, the packaging layer is an inorganic layer and an organic layer stacked film layer, the driving circuit layer 102 transmits an external driving signal to the first sub-display panel 11 and the second sub-display panel 12, and one of a blue pixel unit, a red pixel unit and a green pixel unit or a combined pixel unit is arrayed in the first sub-display panel 11 and the second sub-display panel 12.
In this embodiment, the flexible substrate 101 is preferably a glass substrate or a plastic substrate, the driving circuit layer 102 is a thin film transistor array substrate, and is preferably a top gate driving thin film transistor, and includes a light shielding layer on the flexible substrate 101, a buffer layer is disposed on the light shielding layer, an active layer is disposed on the buffer layer and above the light shielding layer, the active layer includes a channel, and a source doped portion and a drain doped portion disposed at two sides of the channel, a gate insulating layer is disposed on the active layer, a gate electrode is disposed on the gate insulating layer, an interlayer insulating layer is disposed on the gate insulating layer and covers the gate electrode, a source electrode and a drain electrode are disposed on the interlayer insulating layer, a passivation layer is disposed on the interlayer insulating layer and covers the source electrode and the drain electrode, wherein the source electrode is electrically connected to the source doped region of the active layer through a source contact hole, and the, the drain electrode is electrically connected with the input end of the sub-display panel. The sub-display panels each include a carrier, a white oil layer, a light source, and a fluorescent layer, and the carrier is electrically connected to the drain in the driving circuit layer 102 to emit blue, red, green, or white light from the light source.
As shown in fig. 2 and 3, the light supplementing member 17 includes a first light guide member 171, a second light guide member 172 and a total reflection member 173 located between the first light guide member 171 and the second light guide member 172, and the horizontal lengths of the first light guide member 171 and the second light guide member 172 are both 1 to 5 light emitting pixel pitches. The first light guide 171 is provided with a first transflective plate 1711, the second light guide 172 is provided with a second transflective plate 1721, the first transflective plate 1711 is located at the edge of the first sub-display panel 11, and the second transflective plate 1721 is located at the edge of the second sub-display panel 12. The total reflection element 173 includes a first total reflection plate 1731 and a second total reflection plate 1732 disposed in an abutting relationship, wherein the first half-transmissive half-reflective plate 1711 is inclined toward the first reflection plate 1731, and the second half-transmissive half-reflective plate 1721 is inclined toward the second reflection plate 1732. A first full-transmissive plate 1712 is disposed above the first half-transmissive half-reflective plate 1711 in parallel, and a second full-transmissive plate 1722 is disposed above the second half-transmissive half-reflective plate 1721 in parallel. The first half mirror 1711 and the second half mirror 1721 are both polyvinyl alcohol films, the first reflector 1731 and the second reflector 1732 are both glass substrates, and the first full mirror 1712 and the second full mirror 1722 are both transparent polyimide films. The horizontal angles of the first half mirror 1711, the second half mirror 1721, the first mirror 1731, and the second mirror 1732 are all acute. The first light guide member 171, the second light guide member 172 and the total reflection member 173 are filled with a transparent medium, and the refractive index of the transparent medium in the first light guide member 171 and the second light guide member 172 is greater than or equal to the refractive index of the transparent medium in the total reflection member 173. The total reflection light of the first semi-transmission semi-reflection plate 1711 and the second semi-transmission semi-reflection plate 1721 accounts for 20-50%, the refraction and reflection light accounts for 50-70%, the reflection light passing through the semi-transmission semi-reflection plate can be emitted to the total reflection plate and totally reflected again, and then emitted from the splicing position, and the luminous hue of the splicing position is consistent with the brightness of a normal luminous area, so that the display quality in the Micro LED display panel is improved.
The cross sections of the first light guide member 171 and the second light guide member 172 are both right trapezoid, the cross section of the total reflection member 173 is rectangular, and the bottom side of the right trapezoid is attached to the long side of the rectangle. The first light guide member 171 and the first light guide member 172 are symmetrically attached to two sides of the total reflection member 173 to form a complete whole. In this embodiment, the first half-transmissive half-reflective plate 1711 is parallel to the first reflective plate 1731, the second half-transmissive half-reflective plate 1721 is parallel to the second reflective plate 1732, the end portions of the first reflective plate 1731 and the second reflective plate 1732 extend downward along the inner wall of the gap to fill the gap, the vertical height of the reflective plates is higher than the height of the half-transmissive half-reflective plate, the first light guide member 171, the second light guide member 172 and the total reflective member 173 are filled with a transparent medium, and light can be linearly transmitted in the medium.
In this embodiment, the horizontal included angles of the first half-transmissive half-reflective plate 1711, the second half-transmissive half-reflective plate 1721, the first reflective plate 1731 and the second reflective plate 1732 are preferably 45 °, wherein the full-transmissive plate and the half-transmissive half-reflective plate form a parallelogram in the vertical direction and are disposed in the light-emitting region; the total reflection plate is arranged in the dark area and just connected with the semi-transmission. When light is vertically emitted and passes through the semi-transmission semi-reflection plate with an included angle of 45 degrees, 50 percent of the light is refracted out, the other 50 percent of the light is reflected onto the total reflection plate, and the light is reflected out on the total reflection plate; part of the light which is refracted out when passing through the full projection plate, and the principle of reflection and refraction of the light path shows that emergent light is vertically emitted, and the principle of the other side is the same; therefore, the existence of dark areas can be visually eliminated, and the seamless spliced display screen is realized.
For example, the light source 111 emits light S1, the emitted light S1 is the light S11 generated by refraction of the first half mirror 1711, the light S12 generated by reflection, the light S2 emitted by the light source 121, the emitted light S2 is the light S21 generated by refraction of the second half mirror 1721, the light S22 generated by reflection, and the light S12 and the light S22 are generated in the gap between the first sub-display panel 11 and the second sub-display panel 12, so as to eliminate the existence of dark regions and realize a seamless splicing display.
In order to vertically emit the light refracted by the semi-transmissive and semi-reflective plate again, a full-transparent plate is arranged above the semi-transmissive and semi-reflective plate in parallel, a first full-transparent plate 1712 is arranged above the first semi-transmissive and semi-reflective plate 1711, a second full-transparent plate 1722 is arranged above the second semi-transmissive and semi-reflective plate 1721, a transparent medium 1713 and a transparent medium 1714 are arranged in the first light guide portion 171, the refractive indexes of the transparent medium 1713 and the transparent medium 1714 are the same, or the refractive index of the transparent medium 1713 is larger than that of the transparent medium 1714, the refractive index of the transparent medium 1723 and the refractive index of the transparent medium 1724 are the same, or the refractive index of the transparent medium 1723 is larger than that of the transparent medium 1724, the reflective portion 173 is provided with transparent media 1734 and 1733, and the transparent medium 1734 is smaller than that of the transparent medium 1713 and the transparent medium 1723, for example, the light S85.
The semi-transparent and semi-reflective plate in this embodiment may also be a glass substrate, a first low refractive index layer, a first high refractive index layer, a second low refractive index layer, a second high refractive index layer, and a third low refractive index layer, which are sequentially stacked; the material of the first low refractive index layer is SiO2Or MgF2(ii) a The material of the first high refractive index layer is Nb2O5、TiO2Or ZrO2(ii) a Of a second low refractive index layerThe material is SiO2Or MgF2(ii) a The material of the second high refractive index layer is Nb2O5、TiO2Or ZrO2(ii) a The material of the third low refractive index layer is SiO2Or MgF2Finally, performing film coating treatment on the semi-transparent and semi-reflective plate; in another embodiment, the semi-transparent and semi-reflective plate can also be a glass substrate, a first high refractive index layer, a first low refractive index layer and a second high refractive index layer which are sequentially laminated; the material of the first high refractive index layer is Si3N4Layer, Nb2O5Layer, TiO2Layer, ZrO2Any one of the layers; the first low refractive index layer is made of SiOxNx layer or SiOXAny one of a layer, a layer of ZnSnO 3; the material of the second high refractive index layer is Si3N4Layer, Nb2O5Layer, TiO2Layer, ZrO2Any one of the layers; the total reflection plate can also be a glass substrate or a substrate which is subjected to Ag coating on other carrier substrates by a magnetron sputtering process; the full-transparent plate is made of super-white glass and organic glass with better selective transmittance.
In another embodiment, the horizontal included angles of first transflective plate 1711, second transflective plate 1721, first reflective plate 1731, and second reflective plate 1732 are all acute angles, but the acute angle may be other than 45 °. By adjusting the horizontal angle between the first half reflector 1711 and the second half reflector 1721, the light ray S1 emitted from the light source 111 can be transmitted to the non-display areas of the first sub-display panel 11 and the second sub-display panel 12 through the first half reflector 1711 and the second half reflector 1721, thereby solving the problem of non-uniform light in the non-display areas of the first sub-display panel 11 and the second sub-display panel 12.
The embodiment of the invention provides a display panel, which comprises sub display panels distributed in an array manner and a light supplementing component positioned in a gap of the sub display panels, wherein the light supplementing component comprises a semi-transmission semi-reflecting plate and a total reflecting plate, the semi-transmission semi-reflecting plate is arranged close to the edge of the sub display panels and extends to a display area, the total reflecting plate is positioned above the gap of the sub display panels, the total reflecting plate and the semi-transmission semi-reflecting plate are correspondingly arranged, a light source in the display area vertically emits light, about 50% of the light is reflected when passing through the semi-transmission semi-reflecting plate, the other 50% of the light is reflected to the total reflecting plate, and the reflected light is reflected again on the total reflecting plate, so that the vertical light emission of the frame and the gap of the sub display panels is realized, the existence of a dark area can be eliminated, a seamless spliced display screen is realized, and the display uniformity.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. The display panel is characterized by at least comprising a first sub display panel and a second sub display panel which are spliced, wherein a light supplementing component is arranged at the joint of the first sub display panel and the second sub display panel and comprises a total reflection part and light guide parts extending towards the two sides of the total reflection part, and the light guide parts are covered with light-emitting pixels, wherein the light guide parts guide light emitted by the light-emitting pixels into the total reflection part, and the total reflection part emits the guided light from the joint of the first sub display panel and the second sub display panel.
2. The display panel according to claim 1, wherein the light guide member includes a first light guide member provided with a first transflective plate and a second light guide member provided with a second transflective plate, the first transflective plate being located at an edge of the first sub-display panel, and the second transflective plate being located at an edge of the second sub-display panel.
3. The display panel according to claim 2, wherein the total reflection member includes a first total reflection plate and a second total reflection plate which are disposed in a butt joint, and wherein the first transflective plate is inclined toward the first reflection plate and the second transflective plate is inclined toward the second reflection plate.
4. The display panel of claim 3, wherein a first full transmissive plate is disposed in parallel above the first transflective plate, and a second full transmissive plate is disposed in parallel above the second transflective plate.
5. The display panel according to claim 4, wherein the first transflective plate and the second transflective plate are each a polyvinyl alcohol film, wherein the first reflective plate and the second reflective plate are each a glass substrate, and wherein the first fully transmissive plate and the second fully transmissive plate are each a transparent polyimide film.
6. The display panel according to claim 3, wherein the total reflection light of the first transflective plate and the total reflection light of the second transflective plate are in a range of 20% to 50%, and the total reflection light of the second transflective plate are in a range of 50% to 70%.
7. The display panel according to claim 3, wherein the horizontal angles of the first transflective plate, the second transflective plate, the first reflective plate, and the second reflective plate are all acute angles.
8. The display panel according to claim 3, wherein the first light guide member, the second light guide member and the total reflection member are filled with a transparent medium, and a refractive index of the transparent medium in the first light guide member and the second light guide member is greater than or equal to a refractive index of the transparent medium in the total reflection member.
9. The display panel according to claim 1, wherein the horizontal length of the light guide member is 1 to 5 pitches of the light emitting pixels.
10. The display panel according to claim 1, wherein the display panel is an OLED display panel, a mini-LED display panel, or a Micro LED display panel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011410322.5A CN112509477A (en) | 2020-12-04 | 2020-12-04 | Display panel |
| PCT/CN2020/139268 WO2022116318A1 (en) | 2020-12-04 | 2020-12-25 | Display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011410322.5A CN112509477A (en) | 2020-12-04 | 2020-12-04 | Display panel |
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| CN112509477A true CN112509477A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011410322.5A Pending CN112509477A (en) | 2020-12-04 | 2020-12-04 | Display panel |
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| CN (1) | CN112509477A (en) |
| WO (1) | WO2022116318A1 (en) |
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| CN115774354A (en) * | 2022-11-22 | 2023-03-10 | 厦门天马微电子有限公司 | Display module and display device |
| CN116543651A (en) * | 2023-03-13 | 2023-08-04 | 北京中电拓方科技股份有限公司 | Spliced LED display screen and installation method |
| WO2023173479A1 (en) * | 2022-03-16 | 2023-09-21 | 广州华星光电半导体显示技术有限公司 | Backlight module and display device |
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| CN106297582A (en) * | 2016-10-31 | 2017-01-04 | 京东方科技集团股份有限公司 | A kind of optical texture and tiled display panel |
| CN107601920A (en) * | 2017-09-27 | 2018-01-19 | 信义光伏产业(安徽)控股有限公司 | It is divided silvery white looking glass and preparation method thereof |
| CN210667576U (en) * | 2019-08-05 | 2020-06-02 | 福建华佳彩有限公司 | Spliced display screen |
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| WO2023173479A1 (en) * | 2022-03-16 | 2023-09-21 | 广州华星光电半导体显示技术有限公司 | Backlight module and display device |
| US11841524B2 (en) | 2022-03-16 | 2023-12-12 | Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Backlight module and display device |
| CN115774354A (en) * | 2022-11-22 | 2023-03-10 | 厦门天马微电子有限公司 | Display module and display device |
| CN115774354B (en) * | 2022-11-22 | 2024-04-02 | 厦门天马微电子有限公司 | Display module and display device |
| CN116543651A (en) * | 2023-03-13 | 2023-08-04 | 北京中电拓方科技股份有限公司 | Spliced LED display screen and installation method |
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