CN112991971B - 3D-LED grid type display screen capable of switching output modes - Google Patents
3D-LED grid type display screen capable of switching output modes Download PDFInfo
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- CN112991971B CN112991971B CN202110178940.XA CN202110178940A CN112991971B CN 112991971 B CN112991971 B CN 112991971B CN 202110178940 A CN202110178940 A CN 202110178940A CN 112991971 B CN112991971 B CN 112991971B
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
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Abstract
The invention discloses a 3D-LED grid type display screen capable of switching output modes, belongs to the technical field of 3D display, and aims to solve the problems that an existing grid type display screen is single in output mode and display mode. The invention comprises a column output light bar group, a row output light bar group, a fixing frame and a glass curtain wall; the column output light bar group and the row output light bar group are sequentially fixed on the fixing frame and then cover the glass curtain wall; the inner surface of the glass curtain wall is provided with a checkerboard type polarizing film; the m row light bars and the n row light bars are crossed to form a grid shape and matched with the checkerboard type polarizing film; line output mode: all the LED light-emitting units on the n row light bars are on, and all the LED light-emitting units on the m column light bars are off; the two types of polarizing units of the checkerboard type polarizing film are arranged in a spaced manner; column output mode: the LED light-emitting units on the n row light bars, which are crossed and overlapped with the column light bars, are on, and the rest are off; the LED light-emitting units on the m row light bars, which are crossed and overlapped with the row light bars, are turned off, and the rest are turned on; the two types of polarizing units of the checkerboard type polarizing film are arranged in an interlaced mode.
Description
Technical Field
The invention belongs to the technical field of 3D display.
Background
The LED grid type display screen is widely used in the industry as a grid-shaped LED display screen, and the grid-shaped LED display screen is in the form of a hollow-out screen or a web screen, which is also called as a grid screen or a hollow-out picture by those in the industry. The LED grille display screen is mainly used for outdoor walls, glass curtain walls, building tops, outdoor three-side mortar, keel advertising boards, LED curtain walls and the like, and becomes an important means for real-time propaganda and culture propagation.
The existing grid-type display screen adopts an LED light bar group as shown in fig. 1, or a row light bar group as shown in fig. 1 (a), which is suitable for a row output mode; or the column light bar group shown in fig. 1 (b) is suitable for the column output mode, and the row output mode and the column output mode have their advantages under different conditions, for example, when the height of the picture is larger than the width, or when the picture is viewed at a close distance, the selected row output mode has better viewing effect; when the width of the picture is larger than the height or the picture is watched in a long distance, the viewing effect is better when the column output mode is selected, but the current grid type display screen cannot select the proper output mode according to different viewing states. In addition, the grid type LED display screens on the market have a single display mode, are basically 2D pictures, and cannot meet the requirement of 3D display scenes.
Disclosure of Invention
The invention aims to solve the problems of single output mode and single display mode of the traditional grid type display screen, and provides a 3D-LED grid type display screen capable of switching the output mode.
The invention relates to a 3D-LED grid type display screen capable of switching output modes, which comprises a column output light bar group 1, a row output light bar group 2, a fixed frame 3 and a glass curtain wall 4, wherein the column output light bar group comprises a plurality of light bars;
the column output light bar group 1 and the row output light bar group 2 are sequentially fixed on the fixed frame 3 and then cover the glass curtain wall 4; the inner surface of the glass curtain wall 4 is provided with a checkerboard type polarizing film; the checkerboard type polarizing film is in a checkerboard type structure formed by a first polarizing unit 401 and a second polarizing unit 402;
the row output light bar group 1 is formed by m row light bars in parallel, two adjacent row light bars are equidistant and have the same width as the row light bars;
the row output light bar group 2 is formed by n row light bars in parallel, two adjacent row light bars are equidistant and have the same width as the row light bars;
the m row light bars and the n row light bars are crossed to form a grid shape and matched with the checkerboard type polarizing film;
line output mode: all the LED light-emitting units on the n row light bars are on, and all the LED light-emitting units on the m column light bars are off; the two types of polarizing units of the checkerboard type polarizing film are arranged in a spaced manner;
column output mode: the LED light-emitting units on the n row light bars, which are crossed and overlapped with the column light bars, are on, and the rest are off; the LED light-emitting units on the m rows of light bars, which are crossed and overlapped with the row light bars, are turned off, and the rest are turned on; the two types of polarizing units of the checkerboard type polarizing film are arranged in an interlaced mode.
Preferably, the polarizing units at the positions corresponding to the blank cells formed by the intersection of the m column light bars and the n row light bars in the checkerboard-type polarizing film are modified into the non-polarizing units 403.
Preferably, the polarization directions of the first and second polarization units 401 and 402 are different by 90 degrees.
The invention also provides a second scheme: A3D-LED grille display screen capable of switching output modes comprises a column output light bar group 1, a row output light bar group 2, a fixing frame 3 and a glass curtain wall 4;
the row output light bar group 2 and the column output light bar group 1 are sequentially fixed on the fixed frame 3 and then cover the glass curtain wall 4; the inner surface of the glass curtain wall 4 is provided with a checkerboard type polarizing film; the checkerboard type polarizing film is in a checkerboard type structure formed by a first polarizing unit 401 and a second polarizing unit 402, and the polarization directions of the first polarizing unit 401 and the second polarizing unit 402 are different by 90 degrees;
the row output light bar group 1 is formed by m row light bars in parallel, two adjacent row light bars are equidistant and have the same width as the row light bars;
the row output light bar group 2 is formed by n row light bars in parallel, two adjacent row light bars are equidistant and have the same width as the row light bars;
the m row light bars and the n row light bars are crossed to form a grid shape and matched with the checkerboard type polarizing film;
column output mode: all the LED light-emitting units on the n row light bars are bright; all the LED light-emitting units on the m rows of light bars are turned off; the two types of polarizing units of the checkerboard type polarizing film are arranged in an interlaced manner;
line output mode: the LED light-emitting units on the m row light bars, which are crossed and overlapped with the row light bars, are on, and the rest are off; the LED light-emitting units on the m row light bars, which are crossed and overlapped with the row light bars, are turned off, and the rest are turned on; the two types of polarizing elements of the checkerboard polarizing film are arranged in spaced rows.
Preferably, the polarizing units at the positions corresponding to the blank cells formed by the intersection of the m column light bars and the n row light bars in the checkerboard-type polarizing film are modified into the non-polarizing units 403.
Preferably, the polarization directions of the first and second polarization units 401 and 402 are different by 90 degrees.
The invention has the beneficial effects that:
(1) the packaging mode of sharing the LED light-emitting units is adopted, the structure is simple, and the design requirements of the grid type display screen on attractiveness, micro size and flexible installation are met;
(2) the grid type display screen can be used for two display modes of 2D display and 3D display, and can be used for two output modes of a row output mode and a column output mode;
(3) 3D output is separated during 3D line array type display, double losses caused by halving of physical line resolution and halving of 3D line array type 3D output interlaced resolution due to line gaps of an LED line lamp bank group are avoided, and a 3D output picture is more complete;
(4) 3D output is interlaced during 3D array type display, double losses caused by halving of the resolution of a physical array and halving of the resolution of a 3D array type 3D output interval array due to array gaps of the LED array light bar groups are avoided, and a 3D output picture is more complete;
(5) the polarization type glasses are compatible with 3D row array type and 3D row array type 3D output effects at the same time, so that the display screen is suitable for 3D display.
Drawings
Fig. 1 is a schematic diagram of a conventional LED structure of a grid display panel, in which fig. 1 (a) is a schematic diagram of a row light bar set, and fig. 1 (b) is a schematic diagram of a column light bar set;
FIG. 2 is a schematic structural diagram of a 3D-LED grid type display screen with switchable output modes according to an embodiment;
FIG. 3 is a block diagram of a row LED to column LED match;
fig. 4 is a schematic diagram of a checkerboard type polarizing structure, in which the polarizing unit in the position corresponding to the blank unit formed by the intersection of m rows of light bars and n rows of light bars in fig. 4(a) is not a blank unit, and the polarizing unit in the position corresponding to the blank unit formed by the intersection of m rows of light bars and n rows of light bars in fig. 4(b) is a blank unit;
fig. 5 is a state diagram in a line output mode, in which fig. 5 (a) is a perspective view of arrangement of LED light emitting units in a bank group at the time of line output, fig. 5 (b) is a plan view of arrangement of LED light emitting units in the bank group at the time of line output, and fig. 5 (c) is a matching view of the bank group with a checkerboard-type polarizing film at the time of line output;
fig. 6 is a state diagram in the column output mode, in which fig. 6 (a) is a perspective view showing the arrangement of the LED light emitting units in the banks at the time of column output, fig. 6 (b) is a plan view showing the arrangement of the LED light emitting units in the banks at the time of column output, and fig. 6 (c) is a matching view of the banks with the checkerboard-type polarizing film at the time of column output;
fig. 7 is a schematic structural diagram of a 3D-LED grid type display screen with switchable output modes according to the second embodiment.
Detailed Description
The first embodiment is as follows: the following describes the present embodiment with reference to fig. 2 to fig. 6, wherein the 3D-LED grid-type display screen capable of switching output modes includes a column output light bar group 1, a row output light bar group 2, a fixing frame 3 and a glass curtain wall 4;
the column output light bar group 1 and the row output light bar group 2 are sequentially fixed on the fixed frame 3 and then cover the glass curtain wall 4; the inner surface of the glass curtain wall 4 is provided with a checkerboard type polarizing film; the checkerboard type polarizing film is in a checkerboard type structure formed by a first polarizing unit 401 and a second polarizing unit 402;
the row output light bar group 1 is formed by m row light bars in parallel, two adjacent row light bars are equidistant and have the same width as the row light bars; and a section of the lamp strip is reserved at two ends of each row of lamp strips for installation.
The row output light bar group 2 is formed by n row light bars in parallel, two adjacent row light bars are equidistant and have the same width as the row light bars; and a section is reserved at the two ends of each row light bar for installation.
The m rows of light bars and the n rows of light bars are crossed to form a grid shape and are matched with the checkerboard type polarizing film;
line output mode: all the LED light-emitting units on the n row light bars are on, and all the LED light-emitting units on the m column light bars are off; the two types of polarizing units of the checkerboard type polarizing film are arranged in a spaced manner;
column output mode: the LED light-emitting units on the n row light bars, which are crossed and overlapped with the column light bars, are on, and the rest are off; the LED light-emitting units on the m row light bars, which are crossed and overlapped with the row light bars, are turned off, and the rest are turned on; the two types of polarizing units of the checkerboard type polarizing film are arranged in an interlaced mode.
The polarization directions of the first polarization unit 401 and the second polarization unit 402 are different by 90 degrees.
In the present embodiment, the row output light bar group 1 is first installed on the fixing frame 3, and then the row output light bar group 2 is installed on the fixing frame 3, a heat dissipation gap exists between the row output light bar group 1 and the row output light bar group 2, n rows and m rows of light bars form a grid shape as shown in fig. 2, each grid block corresponds to the first polarizing unit 401 or the second polarizing unit 402 of the checkerboard type polarizing film, in the present embodiment, the row output light bar group 2 is arranged close to the glass curtain wall 4, and therefore, the row output light bar group 2 is selected as the main LED light emitting unit.
The first or second polarizing units 401, 402 of the checkerboard polarizing film are arranged in a checkerboard manner as shown in fig. 4(a), and each polarizing unit corresponds to one LED light-emitting unit, and fig. 5 (c) and 6 (c) correspond to the same, wherein the blank area where the rows and columns intersect is not provided with LED light-emitting units, so that the scheme can be further modified as follows: the polarizing units at the positions corresponding to the blank cells formed by the intersection of the m row light bars and the n row light bars in the checkerboard-type polarizing film are modified into non-polarizing units 403, as shown in fig. 4 (b). The modified scheme reduces the manufacturing cost of a part of the polarization unit.
When the row output mode is selected, all the LED light-emitting units on the n row light bars are on, and all the LED light-emitting units on the m column light bars are off, as shown in fig. 5 (b); matching with the checkerboard type polarizing film, referring to fig. 5 (c), it can be seen that for a plurality of LED light-emitting units of the row light bar, one row of LED light-emitting units corresponds to the first polarizing unit 401, and the adjacent row of LED light-emitting units corresponds to the second polarizing unit 402, and the arrangement mode belongs to the two types of polarizing unit spaced rows.
When the column output mode is selected, the row lamp bar group 2 is close to the glass curtain wall 4, so that the display effect of the light-emitting units of the row lamp bar group 2 is better, and even in the column output mode, a mode of complete row extinction and complete column illumination is not adopted, but LED light-emitting units on n row lamp bars, which are crossed and overlapped with the column lamp bars, are illuminated, and the rest are extinguished; the LED light-emitting units on the m row light bars, which are crossed and overlapped with the row light bars, are turned off, and the rest are turned on; the effect of such an output image is better.
Correspondingly, the two types of polarizing units of the checkerboard polarizing film are arranged alternately, as shown in fig. 6 (c).
The image output by the device of the embodiment can be used for 2D display; the method can also be used for 3D display under the condition that 3D viewing glasses participate, wherein the 3D display can select a row output mode or a column output mode according to actual conditions so as to obtain better display effect.
The second embodiment is as follows: the following describes the present embodiment with reference to fig. 7, and the present embodiment describes a 3D-LED grid type display screen capable of switching output modes, and a 3D-LED grid type display screen capable of switching output modes, which is characterized by comprising a column output light bar group 1, a row output light bar group 2, a fixing frame 3 and a glass curtain wall 4;
the row output light bar group 2 and the column output light bar group 1 are sequentially fixed on the fixed frame 3 and then cover the glass curtain wall 4; the inner surface of the glass curtain wall 4 is provided with a checkerboard type polarizing film; the checkerboard type polarizing film is in a checkerboard type structure formed by a first polarizing unit 401 and a second polarizing unit 402, and the polarization directions of the first polarizing unit 401 and the second polarizing unit 402 are different by 90 degrees;
the row output light bar group 1 is formed by m row light bars in parallel, two adjacent row light bars are equidistant and have the same width as the row light bars;
the row output light bar group 2 is formed by n row light bars in parallel, two adjacent row light bars are equidistant and have the same width as the row light bars;
the m row light bars and the n row light bars are crossed to form a grid shape and matched with the checkerboard type polarizing film;
column output mode: all the LED light-emitting units on the n row light bars are bright; all the LED light-emitting units on the m rows of light bars are turned off; the two types of polarizing units of the checkerboard type polarizing film are arranged in an interlaced manner;
line output mode: the LED light-emitting units on the m row light bars, which are crossed and overlapped with the row light bars, are on, and the rest are off; the LED light-emitting units on the m rows of light bars, which are crossed and overlapped with the row light bars, are turned off, and the rest are turned on; the two types of polarizing elements of the checkerboard polarizing film are arranged in spaced rows.
Further, the polarizing units at positions corresponding to the blank cells formed by the intersection of the m column light bars and the n row light bars in the checkerboard polarizing film are modified into non-polarizing units 403.
The polarization directions of the first polarization unit 401 and the second polarization unit 402 are different by 90 degrees.
In this embodiment, the row output light bar group 1 is close to the glass curtain wall, and the on-off control of the LED light emitting unit is different from that of the embodiment, but the working principle is similar, and is not described herein again.
Claims (5)
1. A3D-LED grid type display screen capable of switching output modes is characterized by comprising a column output lamp strip group (1), a row output lamp strip group (2), a fixing frame (3) and a glass curtain wall (4);
the column output light bar group (1) and the row output light bar group (2) are sequentially fixed on the fixed frame (3) and then cover the glass curtain wall (4); the inner surface of the glass curtain wall (4) is provided with a checkerboard type polarizing film; the checkerboard type polarizing film is in a checkerboard type structure formed by a first polarizing unit (401) and a second polarizing unit (402);
the row output light bar group (1) is formed by m parallel row light bars, two adjacent row light bars are equidistant and have the same width with the row light bars;
the row output light bar group (2) is formed by n parallel row light bars, two adjacent row light bars are equidistant and have the same width as the row light bars;
the m row light bars and the n row light bars are crossed to form a grid shape and matched with the checkerboard type polarizing film;
line output mode: all the LED light-emitting units on the n row light bars are on, and all the LED light-emitting units on the m column light bars are off; the two types of polarizing units of the checkerboard type polarizing film are arranged in a spaced manner;
column output mode: the LED light-emitting units on the n row light bars, which are crossed and overlapped with the column light bars, are on, and the rest are off; the LED light-emitting units on the m row light bars, which are crossed and overlapped with the row light bars, are turned off, and the rest are turned on; the two types of polarizing units of the checkerboard type polarizing film are arranged in an interlaced mode.
2. The 3D-LED grid type display screen of claim 1, wherein the polarized cells at the positions corresponding to the blank cells formed by the intersection of m column light bars and n row light bars in the checkerboard-like polarized film are modified to be non-polarized cells (403).
3. A switchable output mode 3D-LED grid display as claimed in claim 1, characterized in that the polarization directions of the first polarizing unit (401) and the second polarizing unit (402) differ by 90 degrees.
4. A3D-LED grid type display screen capable of switching output modes is characterized by comprising a column output light bar group (1), a row output light bar group (2), a fixing frame (3) and a glass curtain wall (4);
the row output light bar group (2) and the column output light bar group (1) are sequentially fixed on the fixed frame (3) and then cover the glass curtain wall (4); the inner surface of the glass curtain wall (4) is provided with a checkerboard type polarizing film; the checkerboard type polarizing film is in a checkerboard type structure formed by a first polarizing unit (401) and a second polarizing unit (402), and the polarization directions of the first polarizing unit (401) and the second polarizing unit (402) are different by 90 degrees;
the row output light bar group (1) is formed by m parallel row light bars, two adjacent row light bars are equidistant and have the same width with the row light bars;
the row output light bar group (2) is formed by n parallel row light bars, two adjacent row light bars are equidistant and have the same width as the row light bars;
the m row light bars and the n row light bars are crossed to form a grid shape and matched with the checkerboard type polarizing film;
column output mode: all the LED light-emitting units on the n row light bars are bright; all the LED light-emitting units on the m rows of light bars are turned off; the two types of polarizing units of the checkerboard type polarizing film are arranged in an interlaced manner;
line output mode: the LED light-emitting units on the m row light bars, which are crossed and overlapped with the row light bars, are on, and the rest are off; the LED light-emitting units on the m row light bars, which are crossed and overlapped with the row light bars, are turned off, and the rest are turned on; the two types of polarizing elements of the checkerboard polarizing film are arranged in spaced rows.
5. The 3D-LED grid type display screen of claim 4, wherein the polarized cells at the positions corresponding to the blank cells formed by the intersection of m column light bars and n row light bars in the checkerboard-like polarized film are modified to be non-polarized cells (403).
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