TWI253601B - Apparatus adaptive for a display wall, image adjustment method, and a display wall therewith - Google Patents

Abstract

A display apparatus adaptive for a display wall, an image adjustment method and a display wall therewith are provided in the invention. The image between display units of the display wall is not exactly displayed, especially for connection areas between every two display units, and the displayed image is required to be adjusted for the defects. In a conventional digital display technique for scaling images in the display unit, a predetermined mode is provided for scaling images; however, it is not suitable for using in the display wall which connection areas between every two display units should be considered. The image adjustment method in the display apparatus provided in the present invention includes receiving an image signal and then setting parameters in a sealer of each of display units in the display wall in response to the image signal. Then sequentially parameters in the sealers of the display units neighboring to the display unit being adjusted are adjusted thereby. The precision degree for the adjusted images can be a pixel in a parallel direction and a line in a perpendicular direction for the displayed images and a complete and more perfect image can be obtained by the adjustment method of the invention.

Description

1253601 12958 twfl.doc/006 Revision Date 93.11.18 IX. Description of the Invention: [Technical Field] The present invention relates to a display device suitable for a video wall, a method for adjusting the same, and a video wall having the same And, in particular, the image adjustment method applied to the digital display device of the video wall and the video wall with the device. "' [Prior Art] In recent years, video walls have been widely used in large-scale display applications. Video walls are arranged in a plurality of display devices, and individual display devices select partial images corresponding to positions according to their positions. , zoomed in to the full screen size of the display device, and all the display devices are combined to display the complete face of one or two images. Figure 1 is a schematic illustration of a video wall composed of 3x3 display devices. Referring to FIG. 1, 100 is a display signal source, and U1, 112, 113, 121, 122, 123, and 13 132 and 133 are arranged in a display frame having a 3x3 frame for nine display devices. The image display signal of the display signal source 1 is sequentially connected to each display device by the b 5 tiger lines 140, 141, 142, 143, 144, 145, 146, 147 and H8, respectively, and sequentially connected through the signal connection lines. Transfer image display signals to all display devices. The serially connected display devices select and enlarge a corresponding partial image content according to the arranged position, and combine to form an enlarged original image. Because digital display technology has clearer and sharper characteristics than traditional analog display technology, such as transmission and distortion, digital display components (such as LCD, PDP, DMD) have gradually replaced traditional analog display components in recent years, 1253601 with a modification date of 93.11. 18 12958twfl .doc/〇〇6 and used for new-generation display devices. The CRT-based display device can control the large J舁 position of the image by rotating the horizontally non-linear deflection circuit. A new generation of digital display devices is usually equipped with a video scaling processor (Scaler) for image scaling and update rate conversion. The adjustment of the size display position of the image can be achieved by controlling the = large rate of the video zoom processor and the starting position and size of the face display. Bai Zhi's display technology for digital zooming provides a set of preset zoom modes (such as zooming in to the full face of the display device, zooming in on the length and width, and holding the original resolution) for the user to select one of them. The mode setting heart page shows the magnification of the broken. This preset zoom mode is not suitable for image adjustment of individual display devices of the video wall. Because of the application of the video wall, one of the display devices varies depending on their location. Sometimes, the magnification and position must be fine-tuned to create a continuous and complete image when merging. In order to make the image between the display device and the display device continuous, in the past, when adjusting the image position, the position of the input image is generally adjusted. This has the disadvantage that the accuracy of the output image adjustment will be Will be related to the magnification of the image magnification. For example, for an image that is magnified twice as much as the image, moving the input image signal at 1 point (pixel) will be magnified to 2 pixels (pixel) at the output image level. Therefore, this adjustment mode will not be able to make the displayed image between adjacent devices appear continuous, and the most important image discontinuity is due to the problem of image signal amplification with a multiple of the decimal point. Take the 3D3 architecture as an example. To enlarge the XGA (Extended Graphics Array) (that is, 1024x768) resolution to the screen with a 3x3 display device, 1253601 12958twfl.doc/006, with a correction date of 93.11.18, If the average calculation of each horizontal input signal should be cut to 1024/3=341.3, but the minimum unit of the input signal is 丨pixd, if you zoom in at 341 points, some information about the displayed image will be missing. When 342 points are enlarged, some of the images will be repeated, which will make the images between the adjacent display devices of the video wall inconsistent. It is known that the application of the digital zoom display is a plurality of preset amplification modes, such as zooming in to the full face of the display device (Fm A11), maintaining the Aspect Aspect Ratio, and maintaining the original resolution ( N i and so on. For convenience of understanding, the following examples are illustrated (please refer to FIG. 3A to FIG. 3D. The screen 310 in FIG. 3A is a display device with a resolution of 72 〇χ 4 〇〇 撷 , , , , , , , , , The resolution is 1〇24χ768, the right magnification mode is enlarged to the full face of the display device (Fm Α11), and the output face is shown as the display face 320 of FIG. 3A, and the enlarged picture fills the entire display device. However, since the ratio of the length and width of the screen is different, the aspect ratio of the image is distorted. If the magnification mode is to maintain the Fill Aspect Ratio, the output pupil surface is as shown in Figure 3c. The aspect ratio of the original picture is unchanged, but the upper and lower edges of the display screen leave a blank area of about 1024 xl00. If the zoom mode is

The original resolution is maintained (Native-Resolution), and the output screen is as shown in the display panel 340 of Fig. 3D, and the pupil resolution is unchanged (720 x 4 〇〇), but a blank area is left around the area. The user can select one of the above amplification modes according to the usage conditions or usage habits. However, the preset amplification type cannot be applied to the structure of the video wall. When multiple display devices are combined to display one facet, sometimes the magnification must be fine-tuned by the accuracy of a horizontal point of one point or a vertical line of 12,351,061 corrected date 93.11.18 12958twfl.doc/0〇6 line, in order to completely spell out Full screen display [invention] - there is a deficiency in the above description. The present invention proposes an amplification adjustment method applied to a display device, and in particular to an amplification adjustment method for a video wall, characterized in that the magnification of the screen is Oh, its accuracy is fine-tuned by the accuracy of one point horizontally or one vertical line. The purpose of the present invention is to provide a method for adjusting a video surface of a video wall, which can first receive an image signal source separately for each display device, and each display device displays an image of the source image according to the initial setting. Complete the face, and then make the right edge or the left edge of the image frame of the video display device fixed, and then draw the image length horizontally. In another alternative embodiment, one of the video walls may be first displayed to display the upper edge of the image of the split image, or the lower edge is fixed </ re-adjusted vertically to capture the image length. Then, the image displayed by each display device is sequentially adjusted to make the image adjacent to the entire surface of the video wall adjacent to each other: the image of the image method using the difficult method of the present invention is equivalent to 'the image displayed by the device. The horizontal length of the image can be increased or decreased - Pixel is an adjustment unit, and the adjustment = the display of the device (4) The vertical plane of the image takes the image length, and the increase or decrease is made - the line is - Na unit, therefore, the overall surface of the 7F of the invention can reach a fairly good quality. According to the overall picture displayed on the video wall, each display is adjusted step by step; =ΓΓ, the system will adjust the display or the right edge of the adjustment, and then increase or decrease the point (Plxel) to - unit to display the image. - Horizontal capture image 1223601 Revision date 93.11.18 12958twfl.doc/006 Length. When the horizontal image capture length of the image displayed by the display device is increased or decreased, one of the horizontal zoom parameters of the video zoom processor is updated, and the horizontal zoom parameter is set to the horizontal display length divided by the adjusted horizontal captured image length. In the winter, according to the overall picture displayed on the video wall, the display of each display device (4) is displayed in a step-by-step manner. The video wall towel is being lightly displayed on the upper or lower edge of the image displayed by the device. By adjusting or decreasing a line (Line) to an adjustment unit to adjust one of the displayed images vertically = image length. When the length of the vertical transposition image is increased or decreased, the vertical zooming parameter of the updated video scaling processor is adjusted to the vertical display length divided by the value of the captured image length. X is another invention of the invention - the purpose is to provide a visual picture signal, and "the surface of the display, the display of the display is corresponding to the display of the eight sides of the display surface. Move the set horizontal display length and; Ϊ = number = the total 显示 surface of the component's resolution is displayed, "one part of the video wall screen, 1 敕 敕 顼 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 〜 〜 The upper or lower edge of the image that is being adjusted in the video wall is fixed, and the upper edge or the lower edge is fixed, and the second line is fined—the adjustment unit is increased=the saltiness is increased when the butterfly is less than the adjusted vertical. 1253601 Correction Date 93.11.18 12958twfl.doc/006 One of the vertical scaling parameters of the scaling processor, the vertical magnification parameter is set to the vertical display length divided by the adjusted vertical captured image length. # The invention provides a video wall, comprising a plurality of display devices for receiving a face signal, and the split screen signal is used for a check

Specifying one of the display screens corresponding to each display device, and the display devices are combined to display an overall screen of the screen corresponding to the screen signal, wherein the display devices set the water length according to the resolution of the digital display component And the vertical display length and the video wall according to the overall = surface displayed by the video wall, sequentially adjust the overall surface displayed by each display device. Once the adjustment (4) the storage device is being adjusted, the display device displays one of the left edges of the image or The right edge is fixed, and then one by one is increased or decreased by one point (Pixel) as the light unit to suspend the image-level image length. When the level of the image displayed by the display device draws the increase or decrease of the length of the county, the horizontal zoom parameter of the miscellaneous video zoom is obtained, and the oblique zoom parameter is the horizontal display length divided by the adjusted Horizontally capture the value of the image length. A further object of the invention is to provide a horizontal and vertical size. The whole function of the digital display transposition, including - digital components for display, - visual processing, for receiving and receiving one of the source video signals: after processing, output a display signal to the digit Not = cow. , in the display device according to the resolution of the digital display component of the application ^ 疋 video zoom processing n rounds the display of the size of the face, do the image size adjustment of the video zooming processor image of the area - side, and then Heart", U*# captures the length of the area and captures it according to the adjusted image

11 1253601 12958twfl.doc/〇〇6 Correction Date 93.11.18 Area Length Updates the zoom parameter of Video Zoom Processing II so that the image content of the image capture area is enlarged to the output display size. The above and other objects, features, and advantages of the present invention will become more apparent from the understanding of the appended claims. [Embodiment] Please refer to FIG. 2, which is a block diagram of an internal circuit of a video scaling processor (Scaler). In this circuit towel, a video input port (Video Input Port) 21 is used to receive a video source signal input from the outside world. In addition, a computer signal input port (Graphics Input p〇rt) 220 is used to receive a computer video source signal input from the outside world. The selection of the video signal input port 21埠 and the computer signal input port 220 is performed via a selection switch 225, and is transmitted to the zoom-out processor (ScaUng Engine) 230°. The zoom-out processor 230 is coupled to a buffer memory (prame).

Buffer memory 240, the buffer memory 240 provides a buffer unit for zooming in and out of the frame for the video signal update rate conversion (Frame Rate Conversion) and the face conversion, and the zoom-in processor 230 is provided

CAP L 26 CAP-W 262, CAP T 263, CAP 264 264, DP L — — — 266, DP—W 267, DP 268 268, DP 269 269, SF—Η 231, and SF-V 232 (Scratchpad); the values of CAPJL, CAP_W, CAP_T and CAP are set to the left edge of the image data area 42〇, the horizontal captured image length, the upper edge and the vertical captured image length; DP__L, 12 1253601 Date 93.1U8 12958twfl.doc/006 DP-W, DP-T and DP-Η are used to set an output display data area (OUTPUT Active Area) 510, its left edge, horizontal display length, upper edge and vertical display length; SF One, and SF-V are used to set a horizontal magnification and a vertical horizontal magnification. The video scaling processor 200 receives a setting control signal of the micro-control 270 through a control interface 260, and the microcontroller 27 is electrically connected to an instruction input device 290 (such as a control panel or a remote controller). 290 can input a control signal to the microcontroller 27, and the microcontroller 270 recognizes the input control signal and converts it into a set control signal and transmits the signal to the zoom processor 200 to set the parameter corresponding to the zoom-out processor 230. Register memory. ~ The signal processed by the enlargement/reduction processor 230 is processed by the display port 250 and output to a digital display element (not shown). The display output 250 further includes an output timing signal generator (Display port Bming Generat〇r) 252 for generating timing signals required by the digital display elements, for example, including a clock signal (Dp_CLK) and a data enable signal ( DH-DE), a horizontal synchronizing signal (dh_synq, and a vertical synchronizing signal (DV-SYNC), etc. Please refer to FIG. 4 and FIG. 5, which illustrate a video wall and its face in accordance with a preferred embodiment of the present invention. Schematic diagram of the signal timing setting of the adjustment method. Fig. 4 is a timing setting diagram of the input and number of the video zooming processor of each display device of the video wall, and Fig. 5 is a timing setting diagram for setting the output signal of the video scaling processor. Referring first to Figure 4, LH_Sync and the horizontal synchronizing signal and the vertical synchronizing signal respectively for the input video signal. A 13 1253601 corrected date 93.11, 18 1295 8twfl .doc / 006 Active Data Area 410 (symbol A) —L(Active Left) is the distance (in CLK) indicating the left edge of the active image data area relative to the leading edge of a horizontal sync signal (I-H-Sync). The symbol A-W (Active Width) indicates this. effective The effective data width of the image data area (in CLK), and the symbol A-T (Active τ〇ρ) is used to indicate the distance from the upper edge of the effective image data area relative to the leading edge of the vertical sync signal (I-V such as c). (Unit: Line) The effective data height (in Une) of the effective image data area used by the symbol AH (Active Height). Please refer to Figure 4 for an image data area (Capture

The area 420 sets the left edge of the captured image data area 42G, the horizontally captured image length, the upper edge, and the vertical captured image length by the values of CAP_L, CAP_W, CAP-T, and CAP 分别, respectively. The left edge and the upper edge are also relative to the vertical sync signal (I_H-Sync) leading edge and the vertical sync signal (j_v_Sync), and the units of cCAP_L and CAP-W are the number of clock cycles (CLK). ), and the unit of CAP-T and CAP is line. Capture image data area = 〇 is the part of the effective image data area 41G, and the video zoom processor is used. Also, a set of captured image data registers (ie, IUA: AP-W/cAP-T/CAP-Η) in the internal area of the image data area of the image area is processed by the video zooming process. The device is scaled to a = display _ signal, and (4) shows the timing nickname of the external display component. Refer to Figure 5 for the output timing signal setting of the output timing signal generator with ugly output. ί中 'D—Η·—for “output horizontal sync signal, its period” is the same as the width of v尨 by DH—Total and DH—Sync—Width (single 14 1253601 revision date 93.11.18 12958twfl .doc/006 bit For the output clock Output_CLK). D-V·Sync is an output vertical sync signal whose period and sync signal width are set by DV-Total and DV-Sync-Width (in Line), the actual output display area For example, the output display data area (OUTPUT Active Area) 510, its left edge / horizontal display length / upper edge / vertical display length are set by DP - L / DP - W / DP - T / DP, respectively, left edge and upper The edge is also the leading edge of the horizontal sync signal and the leading edge of the vertical sync signal, the dp_L/dp_ W unit is the output clock (Output-CLK), and the unit of DP-T/DPJH is the line (Line). In general, The output timing signal must be set according to the timing specification of the external digital display component. For one of the selected external display components, the timing parameter in Figure 5 is a fixed set of parameter values. Generally, the digital display device is used to display images, and video zoom is generally applied. The amplification function of the processor is borrowed Figure 4 sets a capture image data area and Figure 5 sets an output timing signal, and simultaneously sets one of the image conversion horizontal magnification (ie SF - H) and a vertical magnification (ie SF - V) to complete, wherein The horizontal magnification is 8?^ is 〇^一八八&gt;^), and the vertical magnification is Dengyi ¥ (DP-H/CAP-H). The magnification is related to the size of the display area of the output, and also The size of the image data area is related. The new generation of video zoom processor (Seder) can set the magnification to one point (Pixel) in the horizontal direction and one line (Une) in the vertical direction. When each display device is zoomed by video. When processing =, in 5, the heart is a set of fixed hearts =: the number of horizontal and vertical bars of the resolution of the display component.) The size and position of the image by the video zoom processor (Sea) 15 1253601 12958twfl .doc/006 Revision date 93.11.18 Set 'for example, set in the video zoom processor - the group pick-up register (ie the value corresponding to Figure 4 CAP_l, CAp_w €αρ τ = ΑΡ - Η), and the horizontal magnification SF-Η and vertical placement The present invention provides a method for adjusting the facet of a video wall. For example, in the selective embodiment, the image can be called the video wall, and the right edge of the image of the display device or the left edge is fixed, and then the level is adjusted. Record the length of the image. In the other - choose to implement the shooting, (4) to make the video wall - display device

Like the upper edge of the cymbal, or the lower edge S1, adjust the face to capture the image length. Then, the image displayed by each display device is displayed so that the image displayed on the video wall is adjacent to the image--the accuracy of the image I surface of the adjustment method of the Lilin invention is relatively high, such as that displayed by the tank-age device. Image water = capture image length, you can increase or decrease - Pixel is an adjustment of the early position ' _ the vertical display image length of the image displayed by the display device' can increase or decrease one line (Line) ) is an adjustment unit, so

The quality of the book as a whole that is displayed by the video wall of the present invention. 1 ^About the initial capture image area setting of each display device in the video wall, refer to FIG. 7, in which, in order to enlarge XGA (i〇24 x768) surface 700 to have 3x3 total 9 The video wall composed of the display device, the first display device is divided into the source image signal, and then the source image signal signal 1 is distributed to each display device by the image capturing area of each display device. If you want to calculate the value of the captured image area, if you encounter a decimal point value, only take the integer value part, but the most 16 1253601 12958twfl.doc/006 Correction date 93.11.18 must be valid image data of the source image. The area is allocated to each display device in its entirety, and sometimes the horizontal and/or vertical length of the captured image area of some display devices must be increased by one. As shown in the figure, for the parameter of the video scaling processor of the first display device, the required captured image data area is 710, the size of which is 341x256, and the parameter setting for the second display device video zoom processing is set. For the required image data area 72〇, the size is 341x256, and the video scaling processor of the third display device does not have the required image data area 73〇, which is 342x256. In this way, the distribution of the source image to the display device of the video wall avoids the inconsistency of images between adjacent display devices due to the lack or repetition of information of certain displayed images. After appropriately setting the initial captured image area of each display device, each display device must zoom its initial captured image to the digital display element display of the display device. When each display device in the video wall sets and combines and displays a source image according to the initial captured image area as described above, each of the individual display devices may have the following four adjustment conditions and functional requirements. (1) The left edge is fixed, and the right edge is adjusted (indicated by ADJ-RIGHT below): According to the complete image displayed by the video wall, the left edge of a display device has been closely engaged with the adjacent display device, but its right edge The image of the adjacent display device is not continuous. At this time, the left edge of the image data area (ie, CAP-L) must be fixed in the video zoom processor, and the CAP-W value is adjusted, and the horizontal magnification SF is corrected. Η is the updated (dp"w/CAP-W) value. (2) The right edge is fixed, and the left edge is adjusted (indicated by ADJ-LEFr). · According to 17 1253601 12958twfl.doc/006 Correction date 93.11.18 The complete image of the video wall display shows that the right edge of the display device has been Closely connected with the adjacent display device, but the image of the left edge and its adjacent display device is discontinuous. In this case, the video zoom processor must be fixed to capture the right edge of the image data area (ie CAP-L+CAP-W). The value is adjusted while the CAP_L value is adjusted, while the horizontal magnification SF_H is corrected to the updated (DP_W/CAP_W) value.

(3) The upper edge is fixed and the lower edge is adjusted (indicated by ADJJBOTTOM): According to the complete image displayed by the video wall, the upper edge of the display device is tightly coupled with the adjacent display device, but the lower edge is opposite The adjacent display device image is discontinuous. In this case, the video zoom processor must be fixed to capture the upper edge (ie, CAP-T) value of the image data area, and the CAP-H value is adjusted, and the vertical magnification SF-V is corrected. Updated (DP-H/CAP-H) value.

(4) The lower edge is fixed, and the upper edge is adjusted (indicated by ADJ-T〇p underneath): according to the complete image displayed by the video wall, the lower edge of the display device has been tightly coupled with the adjacent display device, but The image of the upper edge and its adjacent display device is not continuous. At this time, the video zoom processor must be fixed to capture the lower edge of the image data area (ie, CAP-T+CAP-H), and the CAP-Τ value must be adjusted. Correct the vertical magnification SF_V to the updated (Dp_H/CAp_H). The above four adjustment actions are fixed to capture the end position of the display image and adjust the position of the other end of the display data area, and the noise of the (2) actually changes the horizontal capture of the captured image data. Image, degree w, and horizontal magnification SF-H (=Dp-w/CAp-, and j-type touch mode, its accuracy of riding the image - a point ((4) 1), and put H (3) and (4) The adjustment will actually change the image capture data 18 1253601 12958twfl.doc/006 revision date 93.11.18. Vertical capture image length CAP-H and vertical magnification SF-V (=DP-H/CAP-H) 'and The accuracy of the adjustment is a line of the input image, and is independent of the magnification. In conjunction with the above-described screen adjustment method provided by the present invention, the embodiment of the present invention will be described with reference to the flowchart of FIG. The screen adjustment method starts from step 600. Each of the display devices receives a source image signal in step 602. Then, in step 604, each display device performs an enlarged display of the source image according to an initial setting. Each display device merges and displays the wall of the wall. Then, in step 6〇6, a display surface device is selected for adjustment. Then, in step 608, one of the four adjustment modes is selected for adjustment, that is, according to the overall display of the video wall in step 6〇4. The method of sequentially adjusting the corresponding display portion of the image displayed by each display device to achieve the optimal state of the overall display displayed by the video wall. The method is included in the embodiment, and each display is included. The device is based on an enlarged display of one of the initial source images (ie, step 6〇4), and the position of the captured image area corresponding to the display device and the horizontally captured image length and vertical capture Image length. Then, according to the horizontal display image length and the vertical captured image length of each of the two display devices, the horizontal magnification parameter and the vertical magnification parameter of the video image display of each display device are set. Adjusting the captured image area of the next display device to adjust the horizontal image of the image displayed by the display device to increase or decrease the point (Pixel) Adjust the unit. Adjust: The vertical image length of the image displayed is increased or decreased by 2 19 1253601 12958twfl.doc/006 Correction date 93.11.18 Line is an adjustment unit. In an embodiment, if the left edge of the image displayed by the display device is fixed in step 6ι, and then the horizontal length of the image is adjusted, as shown in step 618. The image displayed by the device captures the image length. , adding = reducing the horizontal stitching parameter of the horizontal stitching processing, wherein the horizontal setting is the horizontal length of the horizontal length divided by the horizontal level of the image capturing length, and the above adjustment method, in an embodiment, as shown in step 612 The overall display of the video wall is sequentially adjusted. In each step of the display, the right edge of the display is being fixed in the video wall and then the horizontal level of the displayed image is adjusted to capture the level of the image displayed by the device 掏Take the image, and 'I add or subtract a point (Pixel) as an adjustment unit = step to set the video zoom processor - horizontal zoom parameter horizontal zoom parameter set display length Level value of the video capture length. ^Singularly swearing on the first week of the method of 'in an embodiment', as shown in step 614, in the root, the overall display of the video wall sequentially adjusts the display that is being adjusted in each display device. The device is displayed as a fixed edge and then the vertical image of the displayed image is adjusted as in step 62. Adjusting the length of the image displayed by the display device is to increase or decrease the line (une) as a tone. In the adjustment method, when the image displayed by the display device is 20 1253601, the correction date 93·Π·18 12958 twfl.doc/006, the image length is increased or decreased, and then the video zoom processing is set as shown in step 624. - Vertical magnification parameter, which is the value of the vertical display length divided by the adjusted vertical captured image length. In the above-mentioned adjustment method, in the step of step 616, in the step of sequentially adjusting the image displayed by each display device according to the overall display displayed by the video bet, the display device being adjusted in the video wall is used. The lower edge of the image is fixed and then the vertical image length of the displayed image is adjusted, as in step 620. Adjusting the length of the image on the 4 side of the image displayed by the display device to increase or decrease - the line is used for the adjustment method in the method of '#显邱”, and then the image is not as shown in step _ The length is divided by the value of the adjusted vertical captured image length.罝 ‘, 员 ^ In step 63G, choose whether to continue to adjust the display device? If the selection is "Yes, then Θ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Make adjustments. If step 6 is selected, select ^='No other display devices to adjust; if k is selected to be no, then step 65 is used to end the adjustment method. 襌640 The adjustment aspect as described above is from - external signal source It is mentioned that the whole picture in 'square=two: contains a simple geometric figure~=, and the content of this face should be the static face of the pattern 7 (such as 0 shape and oblique line). The display device of the wall is mainly a θ-like number display device. When applied to the general display 1253601 correction date 93.11.l8 12958twfl.doc/006 device, the image data area 42G and the effective image data area 410 are set. The size is similar, and the above four adjustment actions can realize the function of the digital display device to adjust the horizontal and vertical size of the image. ^ In summary, the adjustment technique disclosed in the present invention is compared with the conventional digital amplification. Display technology has at least the following Advantages and features: (1) When the image is applied to the individual display device of the video wall, the size of the image can be fixed based on the end of the image, and the position of one end is adjusted. i (2) The above adjustment The action is achieved by adjusting the position and size of the input image and fine-tuning the magnification. The fine-tuning accuracy of the magnification is the input image level - gamma (Pixelm is directly - Lin (L: display device at the time) The magnification is irrelevant. Due to the image adjustment characteristics described above, the image adjustment of the video wall can be adjusted to a more perfect and complete image adjustment of the image retractor. I, although the invention has been The preferred embodiments are disclosed above, but are not intended to limit the invention, and any skilled person skilled in the art can make some modifications and refinements without departing from the scope of the invention. The scope of the patent application is subject to change. ° ° [Simple description of the schema] f 1 is a schematic diagram of the video telescope with 3x3 display device architecture and its schematic.) Valley 22 1253601 12958twfl.doc/006 Revision date 93.11ι8 Block diagram figure 2 FIG. 3A_3D is an enlarged mode of the conventional digital zoom display. FIG. 4 is a timing setting diagram of the video scaling processor in the video wall display device. Turning to Figure 5 is a timing circle for setting the wheel number in the video zooming processor of the video wall display device. Figure 6 is a flow chart showing an image adjusting method of the individual display device when the video wall is paralleled according to an embodiment of the present invention. 7 is a split configuration manner when the display device and the display device are discontinuous due to the length of the non-integer input data generated by the split face according to an embodiment of the present invention. [Main component symbol description] 100: Display signal sources 111 to 113, 121~ 123, 131~133: display device 140~148··signal transmission line 2〇〇: video zoom processor 202: video source signal, 204: computer video source signal 210: video input port 220: Computer Signal Input Port 225: Input Signal Selection Switch 230: Scaling Engine 231, 232: Horizontal Magnification, Vertical Magnification Register 23 12 53601 12958twfl.doc/006 Revision date 93.11.18 234: Frame Buffer Controller 23 6: Scaling Unit 240·•Frame Buffer Memory 250·•Display Display Port 252: Display Port Timing Generator 260: Control Interfaces 261, 262, 263, 264: Capture Image Area Setting Registers 266, 267, 268, 269 · Output Display Data area setting register 270: Microcontroller 280: Control bus 290: Command input device 410: Active Data Area 420: Capture Data Area 510: Output display area ( OUTPUT Active Area) 31〇·A resolution of 720x400 昼 320 320: Enlarged to full resolution of the display device with resolution 1024x768 (Fill All) ~ 330: Maintaining the Aspect Aspect Ratio 〇 〇 〇 维持 〇 〇 N N N N N N N N N N N N N N N N N N N 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 602 Show an overall face 24 1253601 12958twfl.doc / 006 Revision date 93.1U8 606: Select a display device 608: Select adjustment mode 610, 612, 614, 616: fixed left, right, upper, lower edge 618: adjust horizontal capture Image length 620: Adjust vertical capture image length 622: Set horizontal magnification parameter 624: Set vertical magnification parameter 630: Does the display device continue to adjust?

640: Do you want to continue with other display device adjustments? 65 (h ends 700: 昼 710, 720, 730: capture image data area 25

Claims (1)

1253601 Revision date 93.11.18 12958twfl.d〇c/006 X. Patent application scope: 1. The method for adjusting the display device suitable for video wall applications, wherein the video wall includes a plurality of display devices, etc. The display device has a touch-and-place processor and a digital (four) display component, and includes the following steps: the display device receives a source image signal; and sets one of the video zoom processors to initially capture the image region, and selects the image (10) i images of the image signal are enlarged to the digital display component to output an image; and the display device in the video wall is sequentially selected to perform the screen adjustment until all the dedicated display devices have completed the adjustment action, wherein: a When the image area of the display device is initially captured, the image area of the image is captured, and the size of the image area is changed by changing the position of the other side corresponding to the image area; and The size of the captured image area is updated, and the image zooming process is used to enlarge the image, so that the adjusted captured image area is enlarged to be larger than the output image. . The image adjustment method according to the first aspect of the patent application, wherein the initial image capturing area is set according to the position of the display device in the video wall to select a corresponding portion of the source image signal. Image. The image adjustment method of claim 1, wherein the fixed side of the adjustment is one of an upper edge, a lower edge, a left edge, and a right edge of the captured image region. 2. The method of adjusting the face as described in item 1 of the patent application scope, wherein. The adjustment unit for the size of the image area to be taken from the sea is - point (ρίχ(4) or a 26 1253601 12958twfl .doc/006 correction date 93.11.18 line. 5. The picture adjustment method as described in item 1 of the patent application scope Each of the display devices is sized according to the output image of the η video scaling processor of the digital display component to which the digital display device is applied. π°° and 6. The method for adjusting the facet as described in claim i, The display device adjusts the action to receive-adjust. 7·-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- An instruction input device for receiving an external adjustment command; and a video scaling processor electrically connected to the command input device and configured to receive the display image signal and output a display picture signal to the digital display element after receiving the image signal And the video scaling processor is provided with a plurality of control parameters for setting the output display signal, and the image area for selecting the image signal The capture parameter and the temporary storage 32 for setting the amplification parameter: wherein, each display device selects a part of the image of the source image signal by setting an initial operation parameter of the video scaling processor and by setting the The zooming parameter of the video zooming processor enlarges the part of the image to the size of the display surface; after receiving the external adjustment commands, each display device can perform a facet adjustment operation. 271253601 12958twfl.doc/006 Date 93.11.18 a·Based on the initial captured image area defined by the initial capture parameter, the one side of the captured image area is fixed by setting the capture parameters, and the corresponding captured image area is adjusted. The other side position is used to change the size of the captured image area; and b. updating the image enlargement parameter of the video zoom processor according to the adjusted size of the captured image area, so that the adjusted captured image area is enlarged to the output The size of the image. 8. The video wall of claim 7, wherein the initial captured image areas of the display devices are Setting the position of the display device in the video wall to select a corresponding image of the source image signal. 9. The video wall according to claim 7, wherein the fixed side of the adjustment may be One of the upper edge, the lower edge, the left edge, and the right edge of the captured image region. 10. The video wall according to claim 7 of the patent application, wherein the size of the captured image area is adjusted to a point (pixel) or a line (Line) 〇11. The video wall of claim 7, wherein each display device sets the video zoom processor according to the resolution of the digital display component to which the application is applied. Shows the size of the face. 12. A display device having a horizontal and vertical size adjustment function, the display device comprising: a digital display element; an instruction input device 'for receiving-external adjustment command; and 28 1253601 revision date 93.11.18 12958twfl.doc/006 a video zoom processing is electrically connected to the command input device, and is configured to receive a source image signal, and after processing, a display screen signal is rotated to the digital display component, and the video zoom processor is provided for setting output display a plurality of control parameters of the picture signal, a plurality of capture parameters for selecting the image area of the image signal, and a temporary storage for setting the amplification parameter. 3S. wherein the display device is configured according to the digital display component of the application Setting a display zoom size of one of the video zoom processors, and selecting one or all of the image image signals to zoom in or out to the output by determining an initial capture parameter of the video zoom processor Display screen size; a display device can be written after receiving the external adjustment instruction The whole action: 1) The initial captured image area defined by the initial capture parameter is reduced by 'setting the parameter to the side of the image area, and the other side corresponding to the captured image is adjusted. Positioning to change the size of the image area; and b. updating the image zooming parameter of the video zooming area according to the adjusted size of the captured image area, so that the adjusted captured image area is enlarged to the output display size . The display device according to claim 12, wherein the m-side of the image is adjusted to be one of an upper edge, a lower edge, a left edge, and a right edge of the image region. 14. The display device according to claim 12, wherein 29 1253601 12958 twfl.doc/006 Amendment date 93.11.18 The adjustment unit of the size of the captured image area is a point (Pixel) or a line (Line) ). 30 1253601 f] If this year ^ m t. t ri 2CH computer video source signal video source signal r , r -202 12950OTWIJ 240^- 210 ϋδ220 113⁄4 A, ii ΛΜ /225 ii 230 stopper λϊ^ι MV 262 264 2 SIS 4 232 SFJ NHi T6N 231 TSPT 0— 26! 3⁄4, face stg 261 280 290 236234 444. DPJ DPJ DP_L 266 L«r ia xiao Xiao 268 267 ❿ 252, battle Elili Γ · .J. turn i250 260 270 $00 1 2 c/ , cr 2 [ 1 1 &lt; 2 ^ 5 ^ Z&gt; OC : 5 2 D g 1] ^ g 1J 1 ^ ^ J 2, ι~η. ? ' cz^' ” J 200 1253601 It is replacement page of the other day The image adjustment method in the display apparatus provided in the present The invention includes receiving an image signal and then setting parameters in a scaler of each of display units in the display wall in response to the image signal. Then sequentially parameters in the scalers of the display units neighboring to the display unit being adjusted are adjusted. The precision degree for the adjusted images can be a pixel in a parallel direction and a line in a perpendicular direction for the displayed images and a complete and more perfect image can be obtained by the adjustment method of the invention. · (1) The representative representative of the case is: figure (6). (2) A brief description of the component symbols of the representative figure. · 600 Start 602 Each display device receives a source image signal 604. Each display device selects one of the source images according to an initial setting. The display device 608 selects the adjustment mode 610, 612, 614, 616 to fix the left, right, upper and lower edges 1253601 12958twfl.doc / 006 correction date 93.11.18 618 adjust the horizontal capture image length 620 adjust the vertical capture image length 622 set level The amplification parameter 624 sets whether the vertical amplification parameter 630 continues to be adjusted for the display device. Does the 640 continue to make other display device adjustments? End of 650 VIII. If there is a chemical formula in this case, please reveal the chemical formula that best shows the characteristics of the invention: