WO2001055998A1

WO2001055998A1 - Display method and apparatus for displaying multiple images formed from pixels

Info

Publication number: WO2001055998A1
Application number: PCT/CN2001/000104
Authority: WO
Inventors: Linqing He
Original assignee: Linqing He
Priority date: 2000-01-28
Filing date: 2001-01-31
Publication date: 2001-08-02

Abstract

A display method and an apparatus for displaying multiple images formed from pixels are especially used for displaying multiple images that exchange from one image to another on an advertising lamp box. The images are divided into fine pixels that are square shape. Pixels arrays of 45° diagonal line are abstracted and established. Then, the pixels arrays of multiple images are superimposed on a canvas and corresponding block grid is arranged so that the images are displayed by relative parallel movement between the canvas and block grid mask step by step. An image is exchanged for moving one step. Exchange time is about within 0.1-0.8 second. The display method and apparatus produce an animated display.

Description

Multi-screen image dot matrix display method and device

The invention relates to an image dot matrix display method and a display device, in particular to a multi-screen image dot matrix display method and a display device for an advertising light box. Background technique

Advertising light boxes have been widely used due to their low production cost and easy installation. However, most of the currently used advertising light boxes are printed with multiple images on several pieces of cloth, and then rolled on two rotating shafts to rotate Canvas, one by one. Because it is a mechanical action, the screen switching time is slow, and it is impossible to realize the dynamic scene of the display screen based on the physiological characteristics of the human eye's visual persistence, which affects the advertising effect. With the development of science and technology, electronic screens are used to display dynamic screens. It's easy, but the cost is high. Summary of invention

An object of the present invention is to provide a multi-screen image dot matrix display method and a multi-screen image dot matrix display device capable of superimposing multiple images on one canvas and capable of quickly switching between pictures.

The invention is implemented as follows:

The multi-screen image dot matrix display method of the present invention includes the following steps:

Step 1. Overlay on the canvas to make a multi-screen image dot matrix: a. Sort the original n frames to be overprinted in order AA ₂ , ... A ^, A _n , and determine the image of each frame 釆柒Area, and then divide the image acquisition area into a number of fine square image points, and extract the image points to establish an image 45 ° diagonal image point array;

b. Create a picture corresponding to the 45 ° oblique line image point array on the canvas. 45 ° oblique line draw point array. In the dot array drawing, draw points are regular squares, and the corresponding image 45 ° oblique lines are screens. N times the maximum number of 45 ° oblique lines in the image;

: C Enlarge or reduce the above square image points so that they are exactly equal to the area of the square drawing points; d. Put the picture point array of a picture into the picture point array of the canvas in order according to the 45 ° oblique line interval (n-1), to form a multi-picture image dot matrix;

e. Printing the multi-screen image dot matrix output onto a canvas carrier to make a canvas with multiple screens superimposed;

Step 2. Create a multi-screen image lattice mask grid that is compatible with the multi-screen image lattice on the canvas. The grid screen is provided with a square display grid and occlusion grid of the same size as the dot grid; 45 ° oblique dot matrix arrangement, display grid and occlusion grid are set at adjacent intervals, where the number of occlusion grids is n—1; Step 3. Make a stepping translation drive device to make multi-screen image lattice occlusion grid sieve Can be translated relative to the canvas;

Step 4. Place the multi-screen image dot-matrix blocking grid on the canvas and illuminate it with a light source, start the driving device, and make the multi-screen image dot-matrix blocking grid move stepwise, that is, The screens A _{l 5} A ₂ , ... A _η — A _{n are} displayed in order.

Further, the above-mentioned image acquisition area is the full picture or a partial picture of the original picture to be superimposed, and the area of the square image points in the image gathering area is in n pictures, which may be consistent or unequal; especially for It is easy to operate, and the number of rows and columns of the pixel points divided by the collection area of the originals of several pictures are consistent.

A multi-screen image dot matrix display device made according to the method of the present invention includes a light source, and is characterized by:

A matching multi-screen image lattice is arranged in front of the light source in sequence. An occlusion grid and a corresponding multi-screen image lattice with at least two images superimposed on the canvas, and the multi-i-plane image lattice screen is driven to oppose the canvas Driving components for step-and-translation; There are a plurality of parallel 45 ° dot diagonal lines on the rectangular dot matrix on the canvas, and the adjacent ₄₅ ° dot diagonal lines successively place the dots of n frames, separated by (n -1) A set of 45 ° dot matrix oblique lines is a 45 ° dot array of the same picture;

The multi-screen image dot matrix occlusion grid screen is provided with a square display grid and occlusion grid. The display grid is arranged in a 45 ° diagonal dot matrix. The occlusion grid and the display grid are arranged adjacent to each other. The occlusion grid for each interval is n. -1 space. ·

More specifically, in the multi-screen image dot-matrix blocking grid screen, a display grid thereon is provided with a light-transmitting area and an opaque area. The light-transmitting area may be a rectangle, and the height of the rectangle is The square displays 50%-100% of the grid height and 30-100% of its width. In this way, the display quality problem caused by the gap between the canvas and the multi-screen image dot matrix occlusion grid can be solved;

The canvas has a transparent bottom pad, and the canvas transparent bottom pad is a piece of glass; the multi-screen image dot-matrix blocking grid screen has a transparent bottom pad, and the multi-screen image dot-matrix blocking grid screen is A piece of glass

The driving part of the multi-screen image dot-matrix shielding grid screen includes a driving motor and an actuating screw which are connected with each other.

The advantages of the invention are:

1. Using the method of the present invention, multiple images can be superimposed on a canvas, and the device according to the present invention can switch a picture within 0.1-0.8 seconds. Therefore, the present invention is applied to a light box advertisement, which can increase advertising information The capacity can also change the static picture into a dynamic picture, especially for the introduction of a series of products, multi-angle display of product performance, comparison and introduction of several products, etc., which can better show the superiority of the present invention.

2. It is highly practical. Light box advertisements are often installed at traffic junctions, main flow paths, and the existing cascading display of several pictures obviously cannot meet people's requirements. Few people stop watching a picture An image displayed in series, and using an electronic display device, although the screen is switched quickly, as an advertisement display tool, the cost is too high, and the display device of the present invention has both the advantages of fast screen switching and low cost.

3. In the present invention, because a 45 ° oblique line drawing dot array is used in the present invention, the image display has a realistic viewing angle, high definition, and leaves no trace on the screen switching.

4. Because the height of the light-transmitting area of the display grid on the grid of the image grid of the present invention is about 50% to 100% of the height of the square dot on the canvas. The width is 30% to 100% of the width of the square dots. Therefore, the problem of edge blur of the dots caused by the gap between the grid of the image grid and the canvas portrait is overcome, and the blending of adjacent pictures is effectively prevented; It is also easy to compensate and correct the accumulated errors in the production process. Brief description of the drawings The drawings of the present invention are briefly explained as follows:

FIG. 1, FIG. 2 and FIG. 3 are schematic diagrams of three pictures A ₂ , and A ₃ to be printed on the canvas of the present invention, respectively.

FIG. 4 is a schematic diagram of an image dot matrix of two pictures superimposed on a canvas in the present invention.

FIG. 5 is a schematic diagram of a multi-screen image dot matrix occlusion grid corresponding to FIG. 4 in the present invention.

FIG. 6 is a schematic view of the screen of FIG. 5 covering one of the screens of FIG. 4 and displaying a screen.

FIG. 7 is a schematic diagram of the occlusion grid screen of FIG. 6 being shifted by one grid to switch to another picture. FIG. 8 is a schematic diagram of an image dot matrix in which three frames are superimposed on a canvas in the present invention.

FIG. 9 is a schematic diagram of a multi-screen image dot matrix occlusion grid corresponding to FIG. 8 in the present invention.

Fig. 10, Fig. 11 and Fig. 12 show schematic diagrams of switching the screen every time the occlusion grid screen of Fig. 9 is translated by one grid.

FIG. 13 is a schematic structural diagram of a multi-screen image dot matrix display device according to the present invention.

FIG. 14 is a schematic structural diagram of a display grid of a shielding grid screen in the present invention.

FIG. 15 is another schematic structural diagram of a display grid of a shielding grid screen in the present invention.

FIG. 16 is another schematic structural diagram of a display grid of a shielding grid screen in the present invention. The best way to implement the invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. We will give the technical details of the embodiments in order to better explain the structural technical features and functions of the present invention, but not to limit the scope of protection of the rights of the present invention. Example 1: Multi-screen image dot matrix display method of alternately displaying 2 pictures Step 1-1: Making multi-screen image dot matrix on canvas

As shown in Figure 1 and Figure 2, respectively, the picture person, and A _{2 are} determined, and the image collection area of Ba ₁ and A ₂ is determined, and divided into a number of fine square image points, and the interval is according to the 45 ° line La ₂₁ , La ₂₂ , ...... Extract the image points and build a 45 ° diagonal image point array of the image.

Canvas 10 is divided into several fine points, the points are square, and the area of the points is average. LMM ^2, usually square canvas stippled distributed per square meter more than 40,000, will be, and the image is enlarged or 2.8 ₂ 'is exactly equal to the area down to the stippled squares, two screen image 45 ° The diagonal image point array is alternately placed into the drawing points of the canvas 10 in order to form a multi-picture image dot matrix with two pictures superimposed, as shown in FIG. 4.

The above steps are generally completed with the help of a computer, and then the formed multi-screen image dot matrix is printed on a suitable carrier such as a film, film, etc. by output means such as inkjet printing or laser phototypesetting. Picture of canvas 10.

As mentioned earlier, the image points extracted by a 45 ° oblique line can be extracted at intervals or not at intervals, or most of the image points are completely extracted, and the other portion is extracted at intervals, while Person ₂ is mostly not extracted, where Partial interval extraction.

Steps 1-2, making a suitable multi-screen image lattice occlusion grid.

As shown in FIG. 5, the multi-screen image dot matrix occlusion grid screen 20 is provided with a square display grid 201 and an occlusion grid 202 of the same size as the painting points on the canvas. The display grid is arranged in a 45 ° oblique dot matrix, that is, L _{2Q 1 1} , L ₂₀₁₂₅ …, where L _{2Q 1 1} and L ₂ . The interval of ₁₂ is the number of frames n minus one frame, that is, (n-1) frames. In this embodiment, (n-l) = 2-l = lo, that is, the display grid 201 is set every 1 grid. Space grids are occlusion grids spaced between adjacent display grids in the same row.

The display grid 201 can transmit light, and the blocking grid 202 is black and opaque.

Similarly, the multi-screen image dot-matrix grid grid 20 is output to a suitable carrier, such as a film, a transparent film, and the like.

Steps 1-3: The multi-screen image lattice mask grid 20 is shifted step by step relative to the canvas 10 by means of a fixed-step translation driving device.

The canvas 10 and the multi-screen image dot-matrix blocking grid screen 20 are closely attached together, and the light source is illuminated to illuminate the multi-screen image dot-matrix blocking grid screen 20, and the light-emitting portion of the display grid is used to display the pixel array of the picture k _A , Its occlusion grid obscures the image point array of picture A ₂ ) As shown in FIG. 6, when viewed from the outside of an advertising light box, picture A _{l tJ} is displayed

Moving the canvas 10 and the multi-screen image dot-matrix occlusion grid screen 20 relative to each other by one stroke will display the picture A ₂ , and the occlusion picture Ap is shown in FIG. 7. Since the drawing dot grid is actually very small, its area is generally 1 mm ² , The half-step step stroke is lmm, so the time for switching between two pictures is the time to move a square grid stroke. In practice, this time can be in the range of 0.1-0.8 seconds. Because the switching speed is fast, according to the human body The mechanism of visual persistence produces animation effects and also increases the amount of information released on the same advertising space.

The multi-screen image dot-matrix display device manufactured according to the above method is shown in FIG. 13: The canvas 10 and the multi-screen image dot-matrix screening grid 20 are respectively provided with transparent base mats 11 and 21 made of glass, and base mat 1 1 and 21 are in close contact, but can move relative to each other.

The translation step is completed by the driving part, which mainly includes a motor 30, a screw 50, and a stern beam 40. This driving component can be completed by conventional mechanical transmission means, and will not be repeated here.

A light source 60 is provided on one side of the screen.

When the light source 60 is turned on during use, the driving part moves the transparent bottom pad 21 covering the grid 20 relative to the stroke of a reciprocating step, that is, alternately switches and displays the multiple pictures A ₂ and A _n superimposed on the canvas 10.

Embodiment 2: Multi-screen image dot matrix display method for alternately displaying 3 pictures Step 2- 1: Making a multi-screen image dot matrix on a canvas

As in Example 1, in the FIG. 1, 2 and 3 [alpha] screen,, human [alpha] ₂ and the segmentation of the image points _3, 45 ° oblique create an image into an array of image points corresponding to points canvas painting, formed As shown in FIG. 8, the dot matrix of a multi-picture image with 3 frames superimposed is different, and the interval between diagonal lines of adjacent pixel points of the same picture is (η-1) = 3-1—2 grids.

Step 2-2: Make a suitable multi-screen image lattice occlusion grid.

As shown in FIG. 9, the two sides of the multi-screen image lattice mask grid 20 are provided with more (η-1) columns than the canvas points, that is, a total of 2 columns of the grid 20C, and 20C ₂ , so as to avoid relative movement. There is light leakage at the edges, resulting in blurred edges. The other embodiments are the same as in Example 1. The display grids are arranged in a 45 ° diagonal dot matrix, the adjacent display grids are occluded grids, and the number of grids of spaced occluded grids is (n-1) = (3-1) = 2 cells.

Step 2-3: The stepwise translation driving device is used to make the multi-screen image dot matrix occlusion grid 20 move stepwise relative to the canvas 10. As in Embodiment 1, each time the canvas 10 and the multi-screen image dot matrix occlusion grid sieve 20 move relative to each other, eighth _two and eighth ₃ are sequentially displayed in sequence.

Similarly, in the display device manufactured according to the above method, at the position of an advertising light box, 6 frames can be alternately displayed on the front and the back, which is vivid and increases the information transmission. The distribution volume improves the utilization rate of the advertising space.

Figure 10, Figure 11 and Figure 12 show that the canvas 10 does not move, and the multi-screen image dot-matrix blocking grid screen 20 is shifted to the right by one grid, and the next screen is displayed in sequence; Each time you move back one frame, the screen switches in turn.

Example 3:

The display grid 201 of the blocking grid screen 20 may be set to be incompletely light-transmitting, that is, the display grid 201 is provided with a light-transmitting area 201 1 and an opaque area 2012, and a light-transmitting area. 201 1 The area of the display grid 201 is displayed.

As shown in FIG. 14, the display grid 201 is a square, and its width is assumed to be 1 unit. The light-transmitting region 201 1 has a rectangular shape and is arranged at a middle position. The width of the light-transmitting region 201 1 is 0.4 units and the height is 0.6 units.

In this way, the light transmitted through the light-transmitting area 201 1 is sufficient to illuminate and display the image on its corresponding drawing point.

When there is a gap between the canvas 10 and the occlusion grid 20, because the area of the display grid and the grid of drawing points are equal and set one-to-one, the area of the projection area of the display grid will be larger than the area of the corresponding drawing point. The edge of the drawing point will be enlarged, that is, part of the content of the adjacent drawing point grid will be displayed, which will cause the picture to be blurred. The above-mentioned partial area light-transmitting structure can avoid the above problems.

In addition, because the size of the display grid 201 and the drawing grid must be exactly the same and must be aligned, the production error must exist. By adopting the structure of a part of the light-transmitting area, the error can be corrected, that is, the light-transmitting area 201 1 is appropriately left or right-biased, and the error can be compensated, thereby making the picture clearer.

The area of the light-transmitting area 201 1 may be 15 to 100% of the area of the display grid 201, which is preferably 20 to 80%, and more preferably 20 to 40%.

According to the position of the advertising light box, when viewed from the bottom, the light-transmitting area 201 1 of the display grid 201 can be set below the display grid, as shown in FIG. 15; when viewed from above, the light-transmitting area 201 1 can be set above the display grid 201, such as Figure 16; thus making the picture clearer.

Claims

Rights request

1. A method for displaying a multi-screen image dot matrix, comprising the steps of:

Step 1. Overlay on the canvas to make a multi-screen image dot matrix:

a. Sort the original n frames to be overprinted by A _{l 5} A ₂ , ... A _n _ _{l 5} A _n , and determine the image collection area of each frame, and then divide the image collection area into A number of fine square image points, extracting the image points to create a 45 ° diagonal image point array;

c Enlarging or reducing the square image points so that they are exactly equal to the area of the square drawing points;

d. Put the picture point array of a picture into the picture point array of the canvas in order according to the 45 ° oblique interval (η-1) grid to form a multi-picture image dot matrix;

Step 4. Place the multi-screen image dot-matrix blocking grid on the canvas and illuminate it with a light source, start the driving device, and make the multi-screen image dot-matrix blocking grid move stepwise, that is, Screens A ,, A ₂ , ... Α _η — are displayed in sequence.

2. The dot matrix display method for a multi-picture image according to claim 1, wherein: said image acquisition area is a full picture of a picture original to be superimposed or a partial picture thereof. >

3. The dot-matrix display method for a multi-screen image according to claim i or 2, characterized in that The reason is that the area of the square image points in the image acquisition area is consistent or unequal in n frames.

4. A multi-screen image dot-matrix display device made according to the multi-screen image dot-matrix display method according to claim 1, comprising a light source, characterized in that: a matched multi-screen image dot-matrix is sequentially arranged in front of the light source. Block grid screen and corresponding at least overprint

'A multi-screen image dot matrix canvas with two screens, and a driving component driving the multi-screen image dot matrix screen and the canvas in relative stepwise translation;

There are multiple parallel 45 ° dot diagonal lines on the rectangular dot matrix on this canvas. The adjacent 45 ° dot diagonal lines place the picture points of n frames in order, separated by (n-1) dot diagonal lines. A set of 45 ° dot matrix oblique lines at intervals is a 45 ° pixel array of the same picture;

The multi-screen image dot matrix occlusion grid screen is provided with a square display grid and occlusion grid. The display grid is arranged in a 45 ° diagonal dot matrix. The occlusion grid and the display grid are arranged adjacent to each other. The occlusion grid for each interval is n. -1 space.

5. The multi-screen image dot-matrix display device according to claim 4, characterized in that: the multi-screen image dot-matrix blocking grid sieve, wherein the display grid is provided with transparent areas and opaque areas, wherein The transparent area may be a rectangle, the height of the rectangle is 50% to 100% of the height of the square display grid, and the width is 30 to 100%.

6. The multi-screen image dot-matrix display device according to claim 5, wherein: the canvas is provided with a transparent bottom pad.

7. The multi-screen image dot-matrix display device according to claim 6, wherein the canvas transparent bottom pad is a piece of glass.

8. The multi-screen image dot-matrix display device according to claim 4, wherein: the multi-screen image dot-matrix grid is provided with a transparent bottom pad.

9. The multi-screen image dot-matrix display device according to claim 8, wherein the transparent bottom pad of the multi-screen image dot-matrix screening grid is a piece of glass.