CN114220357B - LED display screen, display and control method - Google Patents
LED display screen, display and control method Download PDFInfo
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- CN114220357B CN114220357B CN202210127171.5A CN202210127171A CN114220357B CN 114220357 B CN114220357 B CN 114220357B CN 202210127171 A CN202210127171 A CN 202210127171A CN 114220357 B CN114220357 B CN 114220357B
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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
- G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
-
- 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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/03—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays
- G09G3/035—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes specially adapted for displays having non-planar surfaces, e.g. curved displays for flexible display surfaces
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2380/00—Specific applications
- G09G2380/02—Flexible displays
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention relates to the technical field of display screens and discloses an LED display screen, a display and a control method, wherein the LED display screen comprises an LED display film and a liquid crystal dimming film; the LED display film, the display side of LED display film is provided with the lamp pearl, takes place the light source through the lamp pearl and shows, and wherein the lamp pearl is the shielding of no frame. And the liquid crystal dimming film is arranged on the display side of the LED display film. When the LED display film is closed, the liquid crystal dimming film is opened, and the LED display screen is in a perspective state; when the LED display film and the liquid crystal dimming film are both in a closed state, the LED display screen is in a screen state; when the LED display film and the liquid crystal dimming film are both opened, the LED display screen is in a drawing mode state; when the LED display film is opened, the liquid crystal dimming film is closed, the weaker light-transmitting part is subjected to extinction through the liquid crystal dimming film, and the LED display screen is in a high-resolution state. The LED display film and the liquid crystal dimming film are matched, so that the LED display can be displayed in multiple types.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to an LED display screen, a display and a control method.
Background
Along with the development of the LED display screen towards high resolution, even carrying a 5G or 6G technology with high transmission speed, the LED display screen is applied to 8K resolution, and the pursuit is to reduce the distance between the lamp beads and improve the resolution, but at present, all the lamp beads are smaller than 1.5mm in side length and have no lamp bead outer frame shielding, so that the problem of light cross is easily generated. The existing lamp bead has no outer frame shielding; the lighting visual effect of the transparent LED display film can be made. If no light shielding outside the lamp beads exists, no matter the size difference of the lamp beads, the problems of reduced image fineness, blurred edges, no sharp feeling, color distortion, low saturation, insufficient resolution and the like can be caused by the fact that each lamp bead generates light rays transversely and light rays are reflected by lines under the screen.
Disclosure of Invention
In order to solve the technical problems, the invention provides an LED display screen, which comprises an LED display film and a liquid crystal dimming film;
the LED display film is provided with lamp beads on the display side, and the lamp beads generate a light source for displaying, wherein the lamp beads are shielding without an outer frame;
the liquid crystal dimming film is arranged on the display side of the LED display film;
when the LED display film is closed, the liquid crystal dimming film is opened, and the LED display screen is in a perspective state; when the LED display film and the liquid crystal dimming film are both in a closed state, the LED display screen is in a screen state; when the LED display film and the liquid crystal dimming film are both opened, the LED display screen is in a drawing mode state; when the LED display film is opened, the liquid crystal dimming film is closed, the weaker light-transmitting part is subjected to extinction through the liquid crystal dimming film, and the LED display screen is in a high-resolution state.
Preferably: the LED display film includes:
a flexible transparent substrate forming a support body;
the grid substrate is a flexible grid-shaped thin-layer metal structure and is used for forming a conductive structure;
the lamp beads are fixedly arranged on the flexible transparent substrate in an array mode, are connected with the grid substrate and are used for generating a light source to display.
Preferably: the grid substrate is made of gold, silver, copper, stainless steel or alloy materials thereof.
Preferably: the grid substrate is copper.
Preferably: the grid line width of the grid substrate is between 1um and 5 mm; a thickness of between 0.1um and 300 um; the mesh line spacing is between 1um and 10 mm.
Preferably: the grid line width of the grid substrate is between 5um and 1.5 mm; the thickness of the grid line is between 1um and 200 um; the mesh line spacing is preferably 3-1 mm.
Preferably: the flexible transparent substrate is flexible glass or flexible transparent substrate; the flexible transparent substrate is made of one or more materials of PA, PET, PEEK, CPI, PEI, PEN, PMMA, COC, COP, PC, LSR, FEP, SMMA, GPPS, PETG or PPSU.
Preferably: and the edges of the LED display film and the liquid crystal dimming film are provided with cladding edges.
The invention also provides an LED display, which comprises a control panel and the LED display screen;
the control panel is connected with the LED display film and the liquid crystal dimming film and is used for controlling the lamp beads to display.
The invention also provides an LED display control method, which is applied to the LED display, and comprises the following steps:
s1, acquiring a display type;
s2, searching a preset type-switching state according to the display type, so as to obtain the switching states of the LED display film and the liquid crystal dimming film;
s3, controlling the switching of the LED display film and the liquid crystal dimming film according to the switching states of the LED display film and the liquid crystal dimming film;
s4, when the LED display film is in an open state, display information is obtained;
s5, the LED display film displays a picture according to the display information.
The invention has the technical effects and advantages that: the LED display film and the liquid crystal dimming film are matched, so that high resolution can be maintained, and the LED display film and the liquid crystal dimming film have controllable double-sided and single-sided display capability, and can achieve the effect of a paper-like screen because the background is white. And the transparency/opacity can be regulated at any time. The design concept of the LED display film and the liquid crystal dimming film is combined, the problem of light crosstalk during display of the LED display screen is solved, high resolution is maintained, and the LED display screen has controllable double-sided and single-sided display capability and even paper-like screen effect; even in combination with a transparent substrate, may possess the advantage of being flexible and transparent at the same time.
Drawings
Fig. 1 is a schematic diagram of a perspective state structure of an LED display according to the present invention.
Fig. 2 is a schematic diagram of a screen state structure of an LED display screen according to the present invention.
Fig. 3 is a schematic diagram of a drawing mode state structure of an LED display screen according to the present invention.
Fig. 4 is a schematic diagram of a high-resolution status structure of an LED display according to the present invention.
Fig. 5 is a schematic perspective view of an LED display according to the present invention.
Fig. 6 is a flowchart of an LED display control method according to the present invention.
Reference numerals illustrate: the LED display film 1, the liquid crystal dimming film 2, the lamp beads 3, the control panel 4 and the connecting wires 5.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Example 1
Referring to fig. 1, in the present embodiment, an LED display screen is proposed, which includes an LED display film 1 and a liquid crystal dimming film 2.
The LED display film 1, the display side of LED display film 1 is provided with lamp pearl 3, shows through the light source takes place for the lamp pearl 3, and wherein lamp pearl 3 is the shielding of no frame. The LED display film 1 can comprise a flexible transparent substrate, forms a supporting main body, has certain flexibility and can be rolled and folded. The flexible transparent substrate can be flexible glass or flexible transparent base material, so that certain light transmittance and flexibility are ensured. The flexible transparent substrate may be one or more materials of PA, PET, PEEK, CPI, PEI, PEN, PMMA, COC, COP, PC, LSR, FEP, SMMA, GPPS, PETG or PPSU, but not limited thereto. Thereby ensuring the light transmittance and flexibility of the flexible transparent substrate. The grid substrate is a flexible grid-shaped thin-layer metal structure and is used for forming a conductive structure. The grid substrate may be gold, silver, copper, stainless steel, or an alloy thereof, wherein copper is preferable, but not limited thereto. Wherein the grid line width is between 1um and 5 mm; particularly preferably, but not limited to, between 5um and 1.5 mm. The thickness of the grid line is between 0.1um and 300 um; particularly preferably between 1um and 200um, but not limited thereto. The mesh line distance is between 1um and 10mm, preferably between 3 and 1mm, but not limited thereto. The lamp beads 3 are fixedly arranged on the flexible transparent substrate in an array mode, are connected with the grid substrate and are used for generating light sources to display. The lamp beads 3 may comprise R, G, B so as to form the smallest element of a three primary colors constituting a display. The material of the lamp bead 3 includes red, green and blue inorganic luminescent materials, which may be gallium arsenide, gallium phosphide, gallium nitride or doped compounds and mixtures thereof, respectively, wherein the inorganic luminescent materials are prepared by sputtering or vapor deposition and co-doped, but not limited thereto.
The liquid crystal dimming film 2 is disposed on the display side of the LED display film 1, and is used for processing light. The liquid crystal dimming film 2 can be attached to the LED display film 1 and can be in clearance with the LED display film 1, the edges of the LED display film 1 and the liquid crystal dimming film 2 can be provided with wrapping edges, and the wrapping edges are used for connecting the LED display film 1 and the liquid crystal dimming film 2 into a whole, so that the LED display film 1 and the liquid crystal dimming film 2 are prevented from being misplaced to cause improper display and separation, and meanwhile impurities are prevented from entering the space between the LED display film 1 and the liquid crystal dimming film 2 to cause pollution. The wrapping edge can be a metal wrapping edge, a plastic wrapping edge, and the like, and particularly one of PA, PET, PEEK, CPI, PEI, PEN, PMMA, COC, COP, PC, LSR, FEP, SMMA, GPPS, PETG or PPSU is optimal, so that the wrapping edge has certain flexibility and perspective, and detailed description is omitted. When the LED display film 11 is turned off, the liquid crystal dimming film 2 is turned on, and the viewing angle is viewed from the LED display screen by the human eye. As shown in FIG. 1, the scene behind the LED display screen can be seen, and the LED display screen is in a perspective state and can be used as a cloth curtain. When both the LED display film 1 and the liquid crystal dimming film 2 are in the off state, the viewing angle of the human eye is viewed from the display side of the LED display screen. As shown in fig. 2, the scene behind the LED display screen cannot be seen, and the LED display screen at this time is in a screen state and can be used as a screen, a partition, or the like. When both the LED display film 1 and the liquid crystal dimming film 2 are opened, the viewing angle of the human eye is viewed from the display side of the LED display screen. As shown in fig. 3, because the lamp beads 3 are not shielded by the outer frame, the lamp beads are easy to cross light, so that the edge of a display picture is blurred, and the LED display screen is in a picture mode state, so that the picture can be blurred, and a hazy and beautiful appearance can be shown. When the LED display film 1 is turned on, the liquid crystal dimming film 2 is turned off, as shown in fig. 4, and since the beads 3 are not shielded by the outer frame, they easily cross each other, resulting in blurring of the edges of the picture. But the weaker light-emitting part can be extinction through the liquid crystal dimming film 2, and the scattered light caused by light-emitting is reduced, so that the LED display screen is in a high-resolution state, maintains high resolution, and has controllable double-sided and single-sided display capability. And the transparency/opacity can be regulated at any time. The design concept of the LED display film 1 and the liquid crystal dimming film 2 is combined, the problem of light crosstalk during display of an LED display screen is solved, high resolution is maintained, and the display device has controllable double-sided and single-sided display capability and even has the effect of paper-like screen; even in combination with a transparent substrate, may possess the advantage of being flexible and transparent at the same time.
Example 2
Referring to fig. 5, the present invention further provides an LED display, where the LED display includes a control board 4 and the LED display screen described above; the control panel 4 can be connected with the lamp pearl 3 for control lamp pearl 3 shows, and control panel 4 can set up the side at the LED display screen to be connected with the net base plate, specifically do not make in detail here, control panel 4 is connected with connecting wire 5, can connect power or battery etc. through connecting wire 5. The control board 4 is electrically connected with the LED display film 1 and the liquid crystal dimming film 2, and the LED display film 1 and the lamp beads 3 are all in the prior art, which is not described herein in detail. The control center is connected with the control board 4 and is used for inputting display signals. The control center can be a key or computer control, can perform fixed display and input control, and can connect the connecting wire 5 with the control center so as to perform power supply and signal input, and detailed description is omitted here.
Example 3
Referring to fig. 6, in this embodiment, an LED display control method is provided, which includes the following steps:
s1, acquiring a display type;
s2, searching a preset type-switching state according to the display type, so as to obtain the switching states of the LED display film 1 and the liquid crystal dimming film 2;
s3, controlling the switching of the LED display film 1 and the liquid crystal dimming film 2 according to the switching states of the LED display film 1 and the liquid crystal dimming film 2;
s4, when the LED display film 1 is in an open state, display information is obtained;
s5, the LED display film 1 displays a picture according to the display information.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (9)
1. An LED display screen is characterized by comprising an LED display film and a liquid crystal dimming film;
the LED display film is provided with lamp beads on the display side, and the lamp beads generate a light source for displaying, wherein the lamp beads are shielding without an outer frame;
the liquid crystal dimming film is arranged on the display side of the LED display film;
when the LED display film is closed, the liquid crystal dimming film is opened, and the LED display screen is in a perspective state; when the LED display film and the liquid crystal dimming film are both in a closed state, the LED display screen is in a screen state; when the LED display film and the liquid crystal dimming film are both opened, the LED display screen is in a drawing mode state; when the LED display film is opened, the liquid crystal dimming film is closed, and the weaker light-transmitting part is subjected to extinction through the liquid crystal dimming film, so that the LED display screen is in a high-resolution state;
the LED display film includes:
a flexible transparent substrate forming a support body;
the grid substrate is a flexible grid-shaped thin-layer metal structure and is used for forming a conductive structure;
the lamp beads are fixedly arranged on the flexible transparent substrate in an array mode and are connected with the grid substrate.
2. The LED display of claim 1, wherein said mesh substrate is gold, silver, copper, stainless steel or an alloy thereof.
3. The LED display of claim 1, wherein said mesh substrate is copper.
4. An LED display screen according to claim 1, wherein the grid substrate has a grid line width of between 1um and 5 mm; a thickness of between 0.1um and 300 um; the mesh line spacing is between 1um and 10 mm.
5. An LED display screen according to claim 1, wherein the grid substrate has a grid line width of between 5um and 1.5 mm; the thickness of the grid line is between 1um and 200 um; the mesh line spacing is preferably 3-1 mm.
6. The LED display screen of claim 1, wherein the flexible transparent substrate is flexible glass or a flexible transparent substrate; the flexible transparent substrate is made of one or more materials of PA, PET, PEEK, CPI, PEI, PEN, PMMA, COC, COP, PC, LSR, FEP, SMMA, GPPS, PETG or PPSU.
7. The LED display screen of claim 1, wherein said LED display film and said liquid crystal dimming film are provided with clad edges at edges.
8. An LED display comprising a control board and an LED display screen according to any one of claims 1-7;
the control panel is connected with the LED display film and the liquid crystal dimming film and is used for controlling the lamp beads to display.
9. An LED display control method, applying the LED display of claim 8, characterized in that the LED display control method comprises the steps of:
s1, acquiring a display type;
s2, searching a preset type-switching state according to the display type to obtain the switching states of the LED display film and the liquid crystal dimming film;
s3, controlling the switching of the LED display film and the liquid crystal dimming film according to the switching states of the LED display film and the liquid crystal dimming film;
s4, when the LED display film is in an open state, display information is obtained;
s5, the LED display film displays a picture according to the display information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210127171.5A CN114220357B (en) | 2022-02-10 | 2022-02-10 | LED display screen, display and control method |
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| CN202210127171.5A CN114220357B (en) | 2022-02-10 | 2022-02-10 | LED display screen, display and control method |
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| CN114220357B true CN114220357B (en) | 2023-08-18 |
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| CN114220357A (en) | 2022-03-22 |
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