CN110310578B - LED display device - Google Patents
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- CN110310578B CN110310578B CN201910580314.6A CN201910580314A CN110310578B CN 110310578 B CN110310578 B CN 110310578B CN 201910580314 A CN201910580314 A CN 201910580314A CN 110310578 B CN110310578 B CN 110310578B
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- 239000000758 substrate Substances 0.000 claims abstract description 48
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 34
- 239000003086 colorant Substances 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000001954 sterilising effect Effects 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 15
- 230000000249 desinfective effect Effects 0.000 description 7
- 238000002834 transmittance Methods 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 244000052616 bacterial pathogen Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000002211 ultraviolet spectrum Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultraviolet radiation
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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 relates to the technical field of display, in particular to an LED display device which comprises a substrate, wherein a plurality of first LED light-emitting device groups which are arranged in an array mode are arranged on a first surface of the substrate, each first LED light-emitting device group comprises a first sub LED light-emitting device, at least one first LED light-emitting device group is provided with a second sub LED light-emitting device, and the second sub LED light-emitting devices are ultraviolet LEDs and are used for carrying out ultraviolet disinfection on the display device. In the LED display device provided by the invention, the second sub-LED light-emitting device is arranged in the at least one first LED light-emitting device group, so that the display device is sterilized, the automation degree of the sterilization of the display device is improved, meanwhile, the problem that the device for sterilizing the display device is inconvenient to carry is effectively solved, the step of sterilizing the display device is simplified, and the efficiency of sterilizing the display device is improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to an LED display device.
[ background of the invention ]
In recent years, display technology has been developed rapidly, and with the continuous progress of various manufacturing processes and technologies, not only has the display quality of the display screen improved and the size of the display screen increased, but also the display form has been innovated. The display screen can be used for mobile phones, televisions and public facilities in public places, and the like, however, after the display screen is used for a long time, bacteria and even pathogenic bacteria are easily generated on the surface of the display screen, and when a user contacts the display equipment which generates the bacteria and the pathogenic bacteria, harmful microorganisms such as the bacteria and the pathogenic bacteria are easily infected to the human body through hands to cause damage to the human body, so that the display screen needs to be disinfected regularly.
The traditional disinfection mode comprises the steps of wiping by using a disinfectant or disinfecting by using an additional ultraviolet disinfection device, tools used for disinfection are not easy to carry, the operation of the disinfection process is complex, and the disinfection efficiency of the display screen is low.
[ summary of the invention ]
In order to solve the above problems, the present invention provides an LED display device.
An LED display device comprising:
the LED display device comprises a substrate, wherein a plurality of first LED light-emitting device groups which are arranged in an array mode are arranged on a first surface of the substrate, each first LED light-emitting device group comprises a first sub-LED light-emitting device, at least one first LED light-emitting device group is provided with a second sub-LED light-emitting device, and the second sub-LED light-emitting devices are ultraviolet LEDs and are used for carrying out ultraviolet disinfection on the display device.
Optionally, a first cover plate is disposed on a side, away from the substrate, of the first LED light emitting device groups, the first cover plate is disposed adjacent to a light emitting surface of the first LED light emitting device groups, and the first cover plate is made of quartz glass.
Optionally, the plurality of first sub-LED light emitting devices are color LED light emitting devices, along a row or column direction of the array, light emitting colors of two adjacent first sub-LED light emitting devices are different, at least three first sub-LED light emitting devices with different light emitting colors constitute a first light emitting unit group, and along the row or column direction of the array, the second sub-LED light emitting device is at least located between two adjacent first light emitting unit groups.
Optionally, a second sub-LED light emitting device is disposed between every two adjacent first light emitting unit groups along the row or column direction of the array.
Optionally, a driving system for driving the first LED light emitting device group to emit light is disposed on a side of the substrate facing away from the first LED light emitting device group.
Optionally, the light-emitting device further comprises a frame arranged on the peripheral side of the substrate and a driving system for driving the first LED light-emitting device group to emit light, wherein the driving system is arranged on one side of the frame facing the peripheral side of the substrate.
Optionally, the substrate is a flexible substrate.
Optionally, a plurality of second LED light emitting device groups arranged in an array are disposed on a side of the substrate away from the first LED light emitting device group, each of the second LED light emitting device groups includes a third sub-LED light emitting device, and a second sub-LED light emitting device is disposed in at least one of the second LED light emitting device groups.
Optionally, the plurality of third sub-LED light emitting devices are color LED light emitting devices, in the second LED light emitting device group, light emitting colors of two adjacent third sub-LED light emitting devices are different along a row or column direction of the array, and at least three third sub-LED light emitting devices with different light emitting colors constitute a second light emitting unit group, and the second sub-LED light emitting devices are at least located between two adjacent second light emitting unit groups along the row or column direction of the array.
Optionally, in the second LED light emitting device group, a second sub LED light emitting device is disposed between every two adjacent second light emitting device groups.
Optionally, a second cover plate is arranged on one side of the second LED light emitting device group away from the substrate, the second cover plate is arranged close to the light emitting surface of the second LED light emitting device group, and the second cover plate is made of quartz glass.
Optionally, the second sub-LED light emitting device is a mini LED chip or a micro LED chip.
Optionally, the wavelength range of the ultraviolet LED is greater than or equal to 200nm and less than or equal to 280nm.
In an LED display apparatus provided in an embodiment of the present invention, a plurality of first LED light emitting device groups are arranged in an array on a first surface of a substrate, each first LED light emitting device group includes a first sub LED light emitting device, and at least one first LED light emitting device group includes a second sub LED light emitting device, when a display apparatus performs image display, the first sub LED light emitting device is powered on, the first sub LED light emitting device is turned on to form a display image, when the display apparatus finishes image display, the first sub LED light emitting device is powered off, and at this time, the first sub LED light emitting device is turned off, thereby stopping image display; when the display device is disinfected, the second sub LED light-emitting device is electrified, the second sub LED light-emitting device is an ultraviolet LED and emits ultraviolet light to disinfect the display device, and after the disinfection of the display device is completed, the second sub LED light-emitting device is powered off and stops emitting the ultraviolet light, so that the disinfection of the display device is stopped; according to the invention, the second sub-LED light-emitting device is arranged in the at least one first LED light-emitting device group, and the switching between the working state and the non-working state of the second sub-LED light-emitting device is realized by carrying out power-on and power-off control on the second sub-LED light-emitting device, so that the disinfection of the display device is realized, the automation degree of the disinfection of the display device is improved, meanwhile, the problem that the device for disinfecting the display device is inconvenient to carry is effectively solved, the step of disinfecting the display device is simplified, and the disinfection efficiency of the display device is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic distribution diagram of a first LED lighting device group in an LED display device according to an embodiment of the present invention;
fig. 2 is a schematic distribution diagram of a second first LED lighting device group in an LED display device provided in an embodiment of the present invention;
fig. 3 is a schematic distribution diagram of a third first LED lighting device group in the LED display device according to the embodiment of the present invention;
fig. 4 is a schematic distribution diagram of a fourth first LED lighting device group in the LED display device according to the embodiment of the present invention;
fig. 5 is a schematic distribution diagram of a fifth first LED lighting device group in the LED display device provided in the embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a first embodiment of an LED display device according to the present invention;
fig. 7 is a schematic structural diagram of a single-sided display device in a second mode in the LED display device according to the embodiment of the present invention;
fig. 8 is a schematic structural diagram of a dual-sided display device in a second mode of the LED display device according to the embodiment of the present invention.
Reference numerals:
1-a substrate; 11-a first LED light emitting device group; 12-a second LED light emitting device group; 13-a first light emitting cell group; 131-red LEDs; 132-blue LED; 133-green LED; 134-white LED; 14-a second sub LED light emitting device; 2-a first cover plate; 3-a drive system; 4-a frame; 5-a second cover plate.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the description of the invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
FIG. 1 is a schematic diagram showing a distribution of a first group of LED lighting devices in an LED display apparatus according to an embodiment of the present invention; fig. 2 is a schematic distribution diagram of a second first LED lighting device group in an LED display device according to an embodiment of the present invention; fig. 3 is a schematic distribution diagram of a third first LED lighting device group in an LED display device according to an embodiment of the present invention; referring to fig. 1 to 3, in an embodiment of the present invention, there is provided an LED display device including:
the display device comprises a substrate 1 and a plurality of first LED light-emitting device groups 11 arranged in an array mode are arranged on a first surface of the substrate 1, each first LED light-emitting device group 11 comprises a first sub-LED light-emitting device 13, at least one first LED light-emitting device group 11 is provided with a second sub-LED light-emitting device 14, and the second sub-LED light-emitting devices 14 are ultraviolet LEDs and used for ultraviolet disinfection of the display device.
In an LED display apparatus provided in an embodiment of the present invention, a plurality of first LED light emitting device groups 11 are arranged in an array on a first surface of a substrate 1, each first LED light emitting device group 11 includes a first sub LED light emitting device 13, and at least one first LED light emitting device group 11 includes a second sub LED light emitting device 14, when the display apparatus performs image display, the first sub LED light emitting device 13 is powered on, the first sub LED light emitting device 13 is turned on to form a display image, when the display apparatus finishes image display, the first sub LED light emitting device 13 is powered off, and at this time, the first sub LED light emitting device 13 is turned off, thereby stopping image display; when the display device is disinfected, the second sub LED light-emitting device 14 is powered on, the second sub LED light-emitting device 14 emits ultraviolet light because the second sub LED light-emitting device 14 is an ultraviolet LED, the display device is disinfected, and after the disinfection of the display device is completed, the second sub LED light-emitting device 14 is powered off, the second sub LED light-emitting device 14 stops emitting the ultraviolet light, and the disinfection of the display device is stopped; in the invention, the second sub-LED light-emitting device 14 is arranged in the first LED light-emitting device group 11, and the switching between the working state and the non-working state of the second sub-LED light-emitting device 14 is realized by carrying out power-on and power-off control on the second sub-LED light-emitting device 14, so that the disinfection of the display device is realized, the automation degree of the disinfection of the display device is improved, meanwhile, the problem that the device for disinfecting the display device is inconvenient to carry is effectively solved, the step of disinfecting the display device is simplified, and the disinfection efficiency of the display device is improved.
A first cover plate 2 is arranged on one side of the first LED light emitting device groups, which is far away from the substrate, the first cover plate 2 is closely adjacent to the light emitting surface of the first LED light emitting device groups 11, and the first cover plate 2 is made of quartz glass.
In the above display device, the first cover plate 2 is disposed on a side of the first LED light emitting device group 11 away from the substrate, and the light emitting surface of the first LED light emitting device group 11 is disposed adjacent to the first cover plate 2, that is, there is no other film layer between the first cover plate 2 and the first LED light emitting device group 11, and light emitted by the first LED light emitting device group 11 directly irradiates on the first cover plate 2, and further, since the first cover plate 2 is made of quartz glass, the visible light transmittance of which is over 93%, and the maximum transmittance in the ultraviolet spectrum region can be over 80%, after light emitted by the first LED light emitting device group 11 directly irradiates on the first cover plate 2, most of the light can be emitted through the first cover plate 2 to the outside, that is, ultraviolet transmittance is increased while the visible light transmittance is ensured, most of ultraviolet light emitted by the second sub LED light emitting device 14 can directly irradiate on the first cover plate 2 and emit through the first cover plate 2 to the outside, thereby achieving sterilization of the first cover plate 2, and further improving the sterilization effect of the display device when the ultraviolet is damaged by ultraviolet, and the display device.
As shown in fig. 1, in order to sterilize the display device and ensure that the display device can perform normal image display, in an embodiment of the present invention, the plurality of first sub-LED light emitting devices are color LED light emitting devices, the light emitting colors of two adjacent first sub-LED light emitting devices are different along the row or column direction of the array, at least three first sub-LED light emitting devices with different light emitting colors form a first light emitting unit group 13, and the second sub-LED light emitting device 14 is at least located between two adjacent first light emitting unit groups 13 along the row or column direction of the array.
Fig. 2 is a schematic diagram of a distribution of a second type of first LED lighting device group in an LED display apparatus provided in an embodiment of the present invention, fig. 3 is a schematic diagram of a distribution of a third type of first LED lighting device group in an LED display apparatus provided in an embodiment of the present invention, fig. 4 is a schematic diagram of a distribution of a fourth type of first LED lighting device group in an LED display apparatus provided in an embodiment of the present invention, and fig. 5 is a schematic diagram of a distribution of a fifth type of first LED lighting device group in an LED display apparatus provided in an embodiment of the present invention.
As shown in fig. 3 to 4, in the embodiment of the present invention, the first light-emitting unit group 13 includes a red LED131, a blue LED132, and a green LED133, a connection line of centers of three first sub-LED light-emitting devices with different light-emitting colors forms a triangular structure, for example, an isosceles triangular structure or a right-angled triangular structure, after the first light-emitting unit groups 13 with a plurality of triangular structures are arranged in an array, a blank area is formed between every two adjacent first light-emitting unit groups 13, in the embodiment of the present invention, the second sub-LED light-emitting device 14 is disposed in at least one blank area, so as to achieve a disinfection effect on the display device, and at the same time, ensure that the display device is not interfered for displaying images;
as shown in fig. 2, in order to further improve the image display effect of the display apparatus, in the blank space formed between the adjacent first light emitting unit groups 13, a part of the blank space is provided with the second sub LED light emitting devices 14, and the other part of the blank space is provided with the white LEDs 134, so as to improve the brightness of the display apparatus and improve the display effect of the display apparatus; or,
as shown in fig. 5, the first light emitting unit group 13 includes a red LED131, a blue LED132, a green LED133 and a white LED 134, wherein the connecting lines of the centers of the four first sub-LED light emitting devices with different light emitting colors form a parallelogram structure, the inclination directions of every two adjacent parallelogram structures are opposite along the row direction of the array, at this time, a blank area is formed between every two adjacent parallelogram structures, and the second sub-LED light emitting device 14 is disposed in at least one blank area.
In order to improve the sterilization effect of the display device, a second sub LED lighting device 14 is disposed between every two adjacent first lighting unit groups 13 along the row or column direction of the array, that is, a second sub LED lighting device 14 is disposed in a blank space formed between every two adjacent first lighting unit groups 13.
In the blank area that forms between every two adjacent first luminescent unit groups 13 above-mentioned, all be provided with sub-LED light emitting device 14 of second, when sub-light emitting device 14 circular telegram of second, the area increase of the ultraviolet ray that sub-light emitting device 14 of second produced in display device has enlarged the area that display device can be shone by the ultraviolet ray promptly, simultaneously, can realize disinfecting display device's corner region, has effectively improved sterile effect and disinfection efficiency of display device.
In the embodiment of the present invention, the display device may be a single-sided display device or a double-sided display device:
when the display device is a single-sided display device, the substrate 1 includes the first LED light-emitting device group 11 distributed in the plurality of arrays;
when the display device is a double-sided display device, the substrate includes the first LED light emitting device groups 11 distributed in an array, and a plurality of second LED light emitting device groups 12 arranged in an array are disposed on a side of the substrate away from the first LED light emitting device groups 11, wherein,
each of the second LED lighting device groups 12 includes a third sub-LED lighting device therein, and at least one of the second LED lighting device groups 12 has a second sub-LED lighting device 14 therein.
In order to sterilize the display device and ensure that the display device can normally display images, in the embodiment of the invention, the plurality of third sub-LED light-emitting devices are color LED light-emitting devices, in the second LED light-emitting device group, the light-emitting colors of two adjacent third sub-LED light-emitting devices are different along the row or column direction of the array, at least three third sub-LED light-emitting devices with different light-emitting colors form a second light-emitting unit group, and the second sub-LED light-emitting devices are at least positioned between two adjacent second light-emitting unit groups along the row or column direction of the array.
In the embodiment of the present invention, the second light emitting unit group includes a red LED131, a blue LED132, and a green LED133, a connection line of centers of three third sub-LED light emitting devices with different light emitting colors forms a triangular structure, for example, an isosceles triangular structure or a right-angled triangular structure, and after the second light emitting unit groups of a plurality of triangular structures are arranged in an array, a blank area is formed between every two adjacent second light emitting unit groups;
in order to further improve the picture display effect of the display device, in the blank area formed between the adjacent second light emitting unit groups, a part of the blank area is internally provided with a second sub-LED light emitting device, and the other part of the blank area is internally provided with a white LED, so that the brightness of the display device is improved, and the display effect of the display device is improved; or,
the second light emitting unit group comprises a red LED131, a blue LED132, a green LED133 and a white LED, the connecting lines of the centers of four third sub-LED light emitting devices with different light emitting colors form parallelogram structures, the inclination directions of every two adjacent parallelogram structures are opposite along the row direction of the array, at the moment, a blank area is formed between every two adjacent parallelogram structures, and the second sub-LED light emitting devices are arranged in at least one blank area.
In order to improve the disinfection effect on the display device, a second sub-LED light emitting device is arranged between every two adjacent second light emitting unit groups along the row or column direction of the array, that is, a second sub-LED light emitting device is arranged in a blank area formed between every two adjacent second light emitting unit groups.
All be provided with the sub-luminescent device of second in above-mentioned every second LED luminescent device group, when the sub-luminescent device of second circular telegram, the area increase of the ultraviolet ray that the sub-luminescent device of second produced in display device has enlarged the area that display device can be shone by the ultraviolet ray promptly, simultaneously, can realize disinfecting display device's corner region, has effectively improved sterile effect and disinfection efficiency of display device.
And a second cover plate is arranged on one side of the second LED light-emitting device group, which is far away from the substrate, and the second cover plate is closely adjacent to the light-emitting surface of the second LED light-emitting device group and is made of quartz glass.
Since the display surface is directly contacted with the outside, harmful substances such as external bacteria and the like are easily attached to the display surface to breed and multiply, and when the display surface is a touch display surface, a user can easily infect the harmful substances of the bacterial lamp on the display surface to the human body by hands in the use process of the display surface, so that the user is injured, in the display device, a second cover plate is arranged on one side of a second LED light-emitting device group, which is far away from the substrate, and the light-emitting surface of the second LED light-emitting device group is closely adjacent to the second cover plate, namely, no other film layer exists between the second cover plate and the second LED light-emitting device group, light emitted by the second LED light-emitting device group directly irradiates on the second cover plate, the second cover plate is made of quartz glass, the visible light transmittance of the quartz glass is over 93%, in an ultraviolet spectrum region, the maximum transmittance can reach over 80%, after the light emitted by the second LED light-emitting device group directly irradiates on the second cover plate, most of the light can pass through the second cover plate to the outside, namely, the ultraviolet light can be directly irradiated on the second cover plate, and the ultraviolet light transmittance is improved, and the ultraviolet light can be further displayed on the display surface, thereby the display device, the ultraviolet light-transmitting effect of the ultraviolet-emitting surface is improved.
The display device also comprises a driving system 3, and in the embodiment of the invention, the driving system 3 is arranged in the following two modes:
in a first mode
Fig. 6 is a schematic structural diagram of a first mode in an LED display device according to an embodiment of the present invention, and as shown in fig. 6, a driving system 3 for driving the first LED light-emitting device group 11 to emit light is disposed on a side of the substrate 1 away from the first LED light-emitting device group 11.
The driving system 3 in the first mode is disposed on a side of the substrate 1 away from the first LED light-emitting device group 11, and is suitable for a single-sided display device.
Taking the single-sided display device including only the first LED light emitting device group 11 as an example, when the driving system 3 operates, the driving system 3 drives the red LED131, the blue LED132 and the green LED133 in the first LED light emitting device group 11 to light up, so as to realize the image display of the display device; when the display device needs to be disinfected, the driving system 3 drives the second sub-LED 14 in the first LED lighting device group 11 to light up, and the second sub-LED 14 emits ultraviolet light to disinfect the display device.
Mode two
A frame 4 and a drive system 3 are provided on the circumferential side of the substrate 1, and the drive system 3 is provided on the side of the frame 4 facing the circumferential side of the substrate 1.
In order to prevent the driving system 3 from moving during the transferring transportation process and causing damage, the driving system 3 is fixedly connected with the frame 4.
Fig. 7 is a schematic structural diagram of a single-sided display device in a second mode of an LED display device according to an embodiment of the present invention, and fig. 8 is a schematic structural diagram of a double-sided display device in the second mode of the LED display device according to an embodiment of the present invention, and as shown in fig. 7 to 8, the driving system 3 is disposed in a position suitable for a single-sided display device, a double-sided display device, and a flexible display device.
As shown in fig. 7, when the display device is a single-sided display device, the driving system 3 is disposed on one side of the frame 4 facing the periphery of the substrate 1, so as to reduce the thickness of the display device in the direction perpendicular to the substrate 1, which is more beneficial to realizing the lightness and thinness of the display device.
As shown in fig. 8, when the display device is a dual-sided display device, the driving system 3 may simultaneously drive and control the first LED light-emitting device group 11 and the second LED light-emitting device group 12, and when the driving system 3 is disposed on a side of the frame 4 facing the substrate 1, the driving system 3 controls the first sub LED light-emitting device 13 in the first LED light-emitting device group 11 and the third sub LED light-emitting device in the second LED light-emitting device group 12 to emit light with LEDs of different light-emitting colors, so as to implement image display, and when the display device performs a sterilization operation, the driving system 3 drives the second sub LED light-emitting device 14 in the first LED light-emitting device group 11 and the second LED light-emitting device group 12 to emit ultraviolet light, so as to sterilize the display device.
As shown in fig. 7 to 8, when the substrate 1 is a flexible substrate 1, in this case, the display device is a flexible display device, and in the flexible display device, the driving system 3 is disposed on the side of the frame 4 facing the substrate 1, which is advantageous for bending, curling, and the like of the substrate 1.
When the display device is used in a large place such as a public place, and the distance between the human body and the display device is long in the process of displaying the picture on the display device, the switching between the power-on and power-off states of the first light-emitting unit group and/or the second light-emitting unit group and the switching between the power-on and power-off states of the second sub-LED light-emitting devices 14 do not interfere with each other, that is, when the display device is in the display state, the second sub-LED light-emitting devices 14 can sterilize the display device, and when the display device is in the non-display state, the second sub-LED light-emitting devices can also sterilize the display device.
When the display device is used in a mobile phone, a tablet, or the like, and the display device is displayed on a screen, and when the distance between the human body and the display device is short, in order to avoid the ultraviolet light emitted by the second sub-LED lighting device 14 from damaging the human body, the condition for switching the on-off state of the second sub-LED lighting device 14 may be set such that, when the first lighting unit group and/or the second lighting unit group is in the on state, the second sub-LED lighting device 14 is in the off state and is not convertible to the on state, and when the first lighting unit group and/or the second lighting unit group is in the off state, the second sub-LED lighting device 14 may be switched between the on-off state as needed, that is, when the display device is in the non-display state, the second sub-LED lighting device may sterilize the display device.
In the second sub-LED light-emitting device, each ultraviolet LED comprises 5 light-emitting surfaces so as to improve the light-emitting amount of the ultraviolet LED, and meanwhile, the ultraviolet LED can disinfect the surface of the substrate so as to improve the disinfection effect of the ultraviolet LED on the display device.
In the embodiment of the present invention, the first sub LED light emitting device 13 is a mini LED chip or a micro LED chip, and the second sub LED light emitting device 14 is a mini LED chip or a micro LED chip.
As an embodiment of the above-described second sub LED light emitting device 14, the wavelength range of the ultraviolet LED is greater than or equal to 200nm and less than or equal to 280nm.
The ultraviolet wavelength is 200nm-300nm, and the sterilization effect is achieved, in the embodiment of the invention, the wavelength range of the ultraviolet emitted by the ultraviolet LED is greater than or equal to 200nm and less than or equal to 280nm, and when the ultraviolet LED is used for sterilizing the display device, a good sterilization effect can be achieved, so that the sterilization efficiency and the sterilization effect of the ultraviolet LED on the display device are ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An LED display device, comprising:
the display device comprises a substrate, wherein a plurality of first LED light-emitting device groups arranged in an array mode are arranged on a first surface of the substrate, each first LED light-emitting device group comprises a first sub-LED light-emitting device, at least one first LED light-emitting device group is provided with a second sub-LED light-emitting device, and the second sub-LED light-emitting devices are ultraviolet LEDs and are used for carrying out ultraviolet disinfection on the display device;
a first cover plate is arranged on one side, away from the substrate, of each of the first LED light-emitting device groups, the first cover plate is arranged close to the light-emitting surface of each of the first LED light-emitting device groups, and the first cover plate is made of quartz glass, so that ultraviolet light emitted by the second sub-LED light-emitting devices directly irradiates the first cover plate and directly irradiates the surface, away from the substrate, of the first cover plate through the first cover plate, and ultraviolet disinfection is performed on the display surface of the display device;
in the second sub-LED light-emitting device, each ultraviolet LED comprises 5 light-emitting surfaces, so that the ultraviolet LED can also disinfect the surface of the substrate;
the plurality of first sub-LED light emitting devices are color LED light emitting devices, along a row or column direction of the array, light emitting colors of two adjacent first sub-LED light emitting devices are different, at least three first sub-LED light emitting devices with different light emitting colors constitute a first light emitting unit group, and along the row or column direction of the array, the second sub-LED light emitting device is at least located between two adjacent first light emitting unit groups;
wherein,
the first light emitting unit group comprises a red LED, a blue LED, a green LED and a white LED, connecting lines of centers of four first sub-LED light emitting devices with different light emitting colors form a parallelogram structure, the inclination directions of every two adjacent parallelogram structures are opposite along the row direction of the array, a blank area is formed between every two adjacent parallelogram structures, and the second sub-LED light emitting devices are arranged in the blank area.
2. The LED display device as recited in claim 1, wherein a side of the substrate facing away from the first group of LED light-emitting devices is provided with a driving system for driving the first group of LED light-emitting devices to emit light.
3. The LED display device according to claim 1, further comprising a bezel provided on a peripheral side of the substrate, and a driving system for driving the first LED light-emitting device group to emit light, the driving system being provided on a side of the bezel facing the peripheral side of the substrate.
4. The LED display device of claim 3, wherein the substrate is a flexible substrate.
5. The LED display device according to any one of claims 3 or 4, wherein a plurality of second LED light-emitting device groups are arranged in an array on a side of the substrate facing away from the first LED light-emitting device group, each of the second LED light-emitting device groups includes a third sub-LED light-emitting device, and at least one of the second LED light-emitting device groups includes a second sub-LED light-emitting device.
6. The LED display apparatus according to claim 5, wherein the third sub-LED lighting devices are color LED lighting devices, and in the second LED lighting device group, two adjacent third sub-LED lighting devices have different lighting colors along the row or column direction of the array, and at least three third sub-LED lighting devices having different lighting colors constitute a second lighting unit group, and the second sub-LED lighting devices are at least located between two adjacent second lighting unit groups along the row or column direction of the array.
7. The LED display device according to claim 6, wherein a second sub-LED lighting device is provided between each adjacent two of the second light emitting unit groups in the second LED lighting device groups.
8. The LED display device as claimed in claim 7, wherein a second cover plate is disposed on a side of the second LED light emitting device group facing away from the substrate, and the second cover plate is disposed adjacent to a light emitting surface of the second LED light emitting device group, and the second cover plate is made of quartz glass.
9. The LED display apparatus of claim 1, wherein the second sub-LED light emitting device is a mini LED chip or a micro LED chip.
10. The LED display device of claim 1, wherein the uv LED has a wavelength range of 200nm or more and 280nm or less.
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| CN201910580314.6A CN110310578B (en) | 2019-06-28 | 2019-06-28 | LED display device |
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| CN201910580314.6A CN110310578B (en) | 2019-06-28 | 2019-06-28 | LED display device |
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| CN111816089A (en) * | 2020-06-08 | 2020-10-23 | 深圳市康硕展电子有限公司 | LED display device that can disinfect |
| US20220216183A1 (en) * | 2020-10-21 | 2022-07-07 | Boe Technology Group Co., Ltd. | Display substrate and display device |
| CN112578939B (en) | 2020-12-18 | 2023-03-03 | 上海中航光电子有限公司 | Touch panel, preparation method thereof, touch module and touch display module |
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| CN102760837B (en) * | 2012-07-10 | 2015-02-25 | 深圳市华星光电技术有限公司 | Organic light-emitting diode (OLED) device structure and display device |
| CN103775919A (en) * | 2014-01-28 | 2014-05-07 | 合肥京东方显示光源有限公司 | Backlight module and display device |
| CN204534234U (en) * | 2015-04-27 | 2015-08-05 | 北京大学东莞光电研究院 | A kind of sterilization illumination LED light emitting source |
| CN106097900B (en) * | 2016-06-22 | 2019-04-30 | 深圳市华星光电技术有限公司 | Micro- LED display panel |
| KR101831625B1 (en) * | 2016-08-05 | 2018-02-23 | 주식회사 지티티 | Sterilization system and method for surface of touch screen |
| TWI643372B (en) * | 2017-11-07 | 2018-12-01 | Macroblock, Inc. | Dual display light source for display and method for generating dual display image |
| CN108962882A (en) * | 2018-07-04 | 2018-12-07 | 深圳世元吉科技发展有限公司 | A kind of UV LED encapsulating structure, production method and sterilizing unit |
| CN109541739A (en) * | 2019-01-21 | 2019-03-29 | 戴灿 | Sterilization and disinfection device, display device and lamp box |
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