Source: http://www.google.com/patents/US8085284?ie=ISO-8859-1&dq=7095053
Timestamp: 2014-03-15 23:34:24
Document Index: 97683910

Matched Legal Cases: ['Application No. 11', 'Application No. 00', 'Application No. 139', 'Application No. 139', 'Application No. 00911359', 'Application No. 00800629']

Patent US8085284 - Method and apparatus for displaying bitmap multi-color image data on dot ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA display screen comprises many pixel lamps arrayed uniformly and in a regular pattern. Pixel lamps come in three types (first- to third-color lamps), and image data to be displayed on the screen consist of bit-map type multi-colored data in which one pixel is represented by a set of three-type color...http://www.google.com/patents/US8085284?utm_source=gb-gplus-sharePatent US8085284 - Method and apparatus for displaying bitmap multi-color image data on dot matrix-type display screen on which three primary color lamps are dispersedly arrayedAdvanced Patent SearchPublication numberUS8085284 B2Publication typeGrantApplication numberUS 11/516,330Publication dateDec 27, 2011Filing dateSep 6, 2006Priority dateMar 24, 1999Also published asCA2332947A1, CN1198249C, CN1302424A, EP1093108A1, EP1093108A4, US7187393, US20070046689, WO2000057398A1Publication number11516330, 516330, US 8085284 B2, US 8085284B2, US-B2-8085284, US8085284 B2, US8085284B2InventorsToyotaro Tokimoto, Masatoshi OhishiOriginal AssigneeAvix Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (16), Non-Patent Citations (6), Classifications (11), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetMethod and apparatus for displaying bitmap multi-color image data on dot matrix-type display screen on which three primary color lamps are dispersedly arrayedUS 8085284 B2Abstract A display screen comprises many pixel lamps arrayed uniformly and in a regular pattern. Pixel lamps come in three types (first- to third-color lamps), and image data to be displayed on the screen consist of bit-map type multi-colored data in which one pixel is represented by a set of three-type color data (first- to third-color data). Each color data plane on a bit-map image data plane is divided into many groups each consisting of a plurality of contiguous pixels, each group is correlated to each first color lamp on the display screen, an operation of selecting in a preset sequence first-color data of a plurality of pixels belonging to one group is repeated, and a first-color lamp correlating to each group is emission-driven according to a selected first-color data. (The same steps are followed for second- and third-color lamps).
CROSS REFERENCE TO RELATED APPLICATIONS This application is a continuation and claims priority under 35 U.S.C. �120 of U.S. patent application Ser. No. 09/701,095 filed Nov. 22, 2000 now U.S. Pat. No. 7,187,393, which claims the benefit as a National Stage entry of a PCT application pursuant to 35 U.S.C. �371 of International Application No. PCT/JP00/01833 filed Mar. 24, 2000, published in the Japanese language, which in turn claims priority under 35 U.S.C. �119 of Japanese Application No. 11-79664, filed Mar. 24, 1999. Applicant also claims priority under 35 U.S.C. �365 of PCT/JP00/01833, filed Mar. 24, 2000. The international application under PCT article 21(2) was not published in English.
SUMMARY OF THE INVENTION This invention was made based on the technical views that have been described in the previous paragraphs, and an object is to realize a full color display of high fineness and high quality on a dot matrix-type display screen where three primary color lamps are dispersedly arrayed.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of a pixel lamp array of a display screen according to one embodiment of the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS =Example of Pixel Lamp Array of Display Screen=
Note that the �one piece� of the red lamp R, the green lamp G or the blue lamp B in this description not only literally denotes the lamp that is constituted of one piece of LED chip, but also is an expression that includes a lamp having a plurality of LED chips of the same color arranged densely.
Another Preferred Embodiment A display method, according to the local corresponding relation that has been thoroughly described above and for generalizing the local portion to the entire screen according to the second method that has been thoroughly described above, will be called a first algorithm. Description will be made for a second algorithm, which is such where little modification is added to the first algorithm. The second algorithm has the same generalization method as that of the first algorithm, but is a little different from the first algorithm in the local corresponding relation.
Another Embodiment The constitution of the display screen portion according to the present invention is one in which a large number of pixel lamps are evenly arrayed on the screen in a regular pattern, and additionally, the pixel lamps have three kinds, which are a first-color lamp, a second-color lamp and a third-color lamp. The three kinds of pixel lamps are evenly dispersed on the screen. A concrete lamp array of the pixel lamps is not limited to the embodiment shown in FIG. 1, but the present invention can be applied to many lamp array patterns similar to the foregoing embodiment, and an operational effect similar to the foregoing embodiment can be obtained.
Similarly to the foregoing description, firstly, attention is paid to the red lamp R33. The red lamp R33 corresponds to sixteen pixels denoted by a reference numeral �1� on the data plane of FIG. 5, and these sixteen pixels are called a group �1�. Next, attention is paid to the green lamp G34 on the right side of the red lamp R33. The green lamp G34 corresponds to sixteen pixels denoted by a reference code �a� on the data plane of FIG. 5, and these sixteen pixels are called a group �a�. Further, attention is paid to the green lamp G43 under the red lamp R33. The green lamp R43 corresponds to sixteen pixels denoted by a reference code �A� on the data plane of FIG. 5, and these sixteen pixels are called a group �A�. Next, attention is paid to the blue lamp B44 on the lower right of the red lamp R33. The blue lamp B44 corresponds to sixteen pixels denoted by a reference code �α� on the data plane of FIG. 5, and these sixteen pixels are called a group �α�.
The way the pixels are divided into each of the four groups �1�, �a�, �A� and �α� is such that they are mutually positionally-shifted on the bitmap image data plane while being partially overlapped as shown in FIG. 5, interrelating with a positional-shift in the arrays of the red lamp R33, the green lamp G34, the green lamp G43 and the blue lamp B44 on the display screen.
The sixteen pixels that belong to each group �1�, �a�, �A� and �α� are divided into four subgroups, each of which having four pixels, as shown in FIG. 5, and each of the subgroups are called a subgroup ◯, a subgroup □, a subgroup ⋄ and a subgroup Δ. In addition, the above-described field is divided into four fields, each having a cycle of 1/480 seconds. For describing this, for example, the above-described first field is assumed to consist of a first �a� field, a first �b� field, a first �c� field and a first �d� field. When the first field is mentioned, it indicates an entirety of these four fields.
With regard to the red lamp R33, in the first field, activation is performed according to data for the four pixels of the subgroup Δ in the group �1�. In a sequence of: the first �a� field→the first �b� field→the first �c� field→the first �d� field, the four pixels of the subgroup Δ are sequentially selected clockwise starting from the upper left pixel. In the second field, data of the four pixels of the subgroup ⋄ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the red lamp R33 is activated. In the third field, data of the four pixels of the subgroup ◯ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the red lamp R33 is activated. In the fourth field, data of the four pixels of the subgroup □ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the red lamp R33 is activated.
With regard to the green lamp G34, in the first field, activation is performed according to data for the four pixels of the subgroup Δ in the group �a�. In a sequence of: the first �a� field→the first �b� field→the first �c� field→the first �d� field, the four pixels of the subgroup Δ are sequentially selected clockwise starting from the upper left pixel. In the second field, data of the four pixels of the subgroup ⋄ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the green lamp G34 is activated. In the third field, data of the four pixels of the subgroup ◯ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the green lamp G34 is activated. In the fourth field, data of the four pixels of the subgroup □ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the green lamp G34 is activated.
With regard to the green lamp G43, in the first field, activation is performed according to data for the four pixels of the subgroup Δ in the group �A�. In a sequence of: the first �a� field→the first �b� field→the first �c� field→the first �d� field, the four pixels of the subgroup Δ are sequentially selected clockwise starting from the upper left pixel. In the second field, data of the four pixels of the subgroup ⋄ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the green lamp G43 is activated. In the third field, data of the four pixels of the subgroup ◯ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the green lamp G43 is activated. In the fourth field, data of the four pixels of the subgroup □ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the green lamp G43 is activated.
With regard to the blue lamp B44, in the first field, activation is performed according to data for the four pixels of the subgroup Δ in the group �α�. In a sequence of: the first �a� field→the first �b� field→the first �c� field→the first �d� field, the four pixels of the subgroup Δ are sequentially selected clockwise starting from the upper left pixel. In the second field, data of the four pixels of the subgroup ⋄ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the blue lamp B44 is activated. In the third field, data of the four pixels of the subgroup ◯ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the blue lamp B44 is activated. In the fourth field, data of the four pixels of the subgroup □ is sequentially selected in the same order as described above (clockwise from the upper left pixel), and the blue lamp B44 is activated.
The above-described local corresponding relation is generalized to the entire screen according to the same regularity as that of the above-described second algorithm, which is the third algorithm. The sixteen pixels of the group �2� on the bitmap image data plane of FIG. 5 are made to correspond to the red lamp R35 two pieces to the right of the red lamp R33, which is the starting point in the foregoing description, and sixteen pixels of the group �3� on the bitmap image data plane of FIG. 5 are made to correspond to the red lamp R53 which is two pieces below the red lamp R33. According to the third algorithm, an excellent effect similar to that of the second algorithm can be obtained.
Effect of the Invention When pixel lamps of each color of RGB (LED chip, for example) are lined-up as densely as possible to constitute a display screen having a high resolution, the constitution will ultimately be such in which: a large number of pixel lamps are evenly arrayed on the screen in a regular pattern; there are three kinds of pixel lamps, which are a first color lamp, a second color lamp and a third color lamp; and the three kinds of pixel lamps are evenly dispersed on the screen, as exemplified in FIG. 1, FIG. 3 and FIG. 4. This constitution can be said to be a configuration wherein no useless space is included among the lamps, and such a configuration is one source of the effect of the present invention for realizing a high-resolution display.
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