TWI339313B - System and method of color optimization for digital lighting processing projector - Google Patents

Description

1339313 I γί η Λ ίτ ί, 口 ri i.*r ~r~ ^a- VI. Description of the Invention: [Technical Field] [0001] The present invention relates to a color optimization system and method, and more particularly to a digital light Processing projector color optimization system and method. [Previous Technique #f] [0002] At present, in the mass production process of digital light processing (DLP, D i gi ta 1 L i ght i ng Pro-cessing), the color setting is mainly determined by the gamma curve. In order to avoid complicated adjustment process in the production process, the gamma curve setting is usually set at the beginning of the design with the standard optical machine (ie engineering sample machine). The same model is set by the same gamma curve during mass production, and once it is determined After that, it will not be recorded. ", ^This will ensure that the same model of the mass production machine has the same color and color performance, that is, can --ffe. 'r^rr--· to achieve the desired color of the design which performed. [0003] However, after the mass production, the coating of various optical parts has tolerances, and the spectrum of the light source also shows a distribution trend. These influences the quality of some machines and the quality of the standard optical machine, which leads to the partial machine. The color performance is different from the expected color performance of the design, so the color performance of the production machine Φ can not achieve uniformity. SUMMARY OF THE INVENTION [0004] In view of the above, it is necessary to provide a digital light processing projector color optimization system and method that can ensure the uniformity of color performance of a mass production machine. [0005] A digital light processing projector color optimization system comprising a color analyzer, a digital light processing projector, and a ten-phase processor. The color analyzer is configured to sense a picture, and obtain a luminance ratio of the three primary colors of the red, green, and blue colors of the facet and a color coordinate value of the picture at the luminance ratio. 096149429 Form No. A0101 Page 4 / Total 16 Page 0993460089-0 1339.313 On December 24, 099, the digital light processing projector is used to project a first projection picture to the outside screen and output the first projection. Screen to the color analyzer. The central processor is configured to receive the first projection picture outputted from the projector, and an initial luminance ratio of the first projection picture outputted from the color analyzer, and adjust the initial luminance ratio to reach a preset Standard brightness ratio to form a second projection picture 'outputting a second projection picture to the color analyzer, and acquiring color coordinate values of the second projection picture from the color analyzer, comparing colors of the second projection picture The difference between the coordinate value and the preset standard color coordinate value, adjusting the color coordinate value of the second projection picture according to the difference of the color coordinate value to reach the standard color coordinate value and converting into the corrected gamma setting 'change correction The subsequent gamma setting is stored to the digital light processing projector. [0006] A digital light processing projector color optimization method, comprising the steps of: receiving a signal 'projecting a first projection picture to an external screen; sensing the first projection picture 'acquiring an initial brightness corresponding to the first projection picture Proportion; adjusting the initial luminance ratio to reach a preset standard Huihu ratio to form a second projection picture; sensing the second projection picture, and taking the color coordinate value of the second projection picture; comparing the first a difference between the written color coordinate value and the preset standard color coordinate value; adjusting the color coordinate value of the second projection picture according to the difference of the color coordinate value to reach the color coordinate coordinate value and converting into the corrected gamma The horse setting; the rounded corrected gamma setting is stored to the digital light processing projector. Compared with the prior art, the digital light processing projector color optimization system and method are configured to adjust the color coordinate value of the projected image to reach a standard color coordinate value of the sample machine and convert it into a corrected gamma setting to store Number 096149429 Form No. A0101 Page 5 / Total 16 Page 0993460089-0 [0007] 1339313

On December 4th, the replacement of the memory unit of the replacement page I bit light processing projector, the digital light processing projection of the projector automatically calls the gamma setting in the storage unit to make the color performance and standard of the mass production machine The color performance of the optical machine is the same, thus ensuring the uniformity of color performance of the mass production machine. [Embodiment] The present invention will be further described in detail below with reference to the accompanying drawings. Please refer to FIG. 1, which is a digital light processing projector color optimization system 100 of the present invention, which includes a color analyzer 10, a digital light processing projector 20, and a central processing unit 30. [0010] The color analysis The instrument 10 is configured to sense a picture and obtain a luminance ratio of three primary colors of red, green, and blue of the above-mentioned picture and a color coordinate value of the picture at a luminance ratio of ./·. [0011] The digital light processing projector 20 includes a storage unit 22 that stores signals for being invoked during projection. The digital light processing projector 20 projects a first projection picture onto an outside screen and outputs the first projection picture to the color analyzer 10. φ [0012] The central processing unit 30 includes a signal acquisition unit 32, a luminance ratio adjustment unit 34, a comparison unit 36, and a color coordinate value adjustment unit 38. The signal acquisition unit 32 acquires an initial luminance ratio of the first projection screen output from the digital light processing projector 20 and the first projection screen output from the color analyzer 10. The luminance ratio adjusting unit 34 adjusts the initial luminance ratio to reach the preset standard luminance ratio to form a second projection plane, and the central processing unit 30 outputs the second projection screen to the color analyzer After 10, the signal acquisition unit 32 acquires the replacement page from the 096149429 form number A0101 page 6/16 pages 0993460089-0 1339313 [0013] December 24, 099

[0017] [0017] [0017]

[0020] 096149429 The color coordinate value of the second projection picture output by the color analyzer 10. The comparison unit 36 compares the difference between the color coordinate value of the second projected picture and the preset standard color coordinate value. The color coordinate value adjustment unit 38 adjusts the color coordinate value of the second projection picture to the standard color coordinate value and converts it into the corrected gamma setting according to the color coordinate value difference. The central processor 30 outputs the corrected gamma setting to the storage unit 22 for being invoked during projection. Please refer to FIG. 2, which is a flow chart of the steps of the color optimization method of the digital light processing projector of the present invention. Step S100: receiving a signal, and projecting the first projection image to the external screen; Step S102: sensing the first projection surface: acquiring the initial luminance ratio corresponding to the first projection' screen; Step S104: adjusting the initial luminance ratio to reach a preset standard luminance ratio to form a second projection plane; Step S1 06: sensing the second projection screen, and acquiring a color coordinate value of the second projection screen; Step S1 07: comparing the difference between the color coordinate value of the second projection picture and the preset standard color coordinate value; Step S108: adjusting the color coordinate value of the second projection picture according to the color coordinate value difference to reach the standard The color coordinate value is converted into the corrected gamma setting; and in step S109, the corrected gamma setting is outputted to the memory unit of the digital light processing projector. Form No. A0101 Page 7 of 16 0993460089-0 1339313

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[0022] [0025] [0025] [0025] [0026] 096149429 wherein the step S104 adjusts the initial luminance ratio to reach a preset standard luminance ratio to form a second projection plane including the following steps (see FIG. 3): Step S200: setting a red primary color standard luminous flux, a green primary color standard luminous flux, and a blue primary color standard luminous flux of the red primary color, the green primary color, and the blue primary color of the standard optical machine at the first effective opening time point; step S202: determining mass production The machine corresponds to the red primary color luminous flux, the green primary luminous flux, and the blue primary luminous flux of the three primary colors of the standard optical machine at the first effective opening time point; step S204: the three luminous fluxes: meaning, and prohibition; The ratios of the corresponding three standard luminous fluxes are respectively set to the said; the production; the three primary colors correspond to the first attenuation tb_S, the second attenuation ratio, and the third attenuation ratio of the three primary colors of the standard optical machine, and The ball is set to a minimum attenuation ratio; Step S 2 0 6 : correcting the first effective opening time of the other primary colors of the mass production machine by using the primary color of the mass production machine corresponding to the minimum attenuation ratio as a reference Obtaining a second effective opening time point of the other primary colors; Step S208: correcting the other of the mass production machines according to a ratio of the respective second effective opening time points to respective corresponding first effective opening time points The effective opening time of the primary color causes the red, green and blue primary color luminance ratios to reach the standard luminance ratio of the standard three primary colors of the optical machine to form a second projection picture. In step S108, the color coordinate value of the second projection plane is adjusted according to the color coordinate value difference until the standard color coordinate value is reached as follows: Form No. A0101 Page 8 / Total 16 pages [0027] The color coordinate value (x, the scale value χ is large) of the second projection picture does not change, thereby reducing the blue base, /) relative to the standard color base color luminance. If the second projection picture is 冋 増 绿 绿 绿 标准 标准 标准 标准 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Red base color luminance. The mark is unchanged, y is too large, then the red base color is added = relative to the standard color seat color luminance. If the color of the second projection picture is simultaneously the base: color = unchanged, y is too small, Add green primary color X: Sophomore: The standard value (X, y) is relative to the standard color coordinate value. “Large y is too large, then reduce the red primary color luminance, and then reduce the green base to the right: the color coordinate value of the projected picture. (x, y) relative to the color: the value x is too large, y is too small, then the red base chromaticity is reduced, and then: the brightness is increased. The color seat _(x, y) of the second projection picture is relative to two votes. The quasi-color coordinate value X is small, and y is small, then the red primary color luminance is increased, and then: the green primary color luminance is added. If the color coordinate of the second projection picture is smaller than the standard color coordinate value X, y is too large , then increase the ...X'y) phase, and then reduce the green base color luminance. K red base color luminance The digital symmetry vote of the present invention "color optimization system and method #4 by adjusting the color of the projection picture The value is up to the standard color 榡 value and converted/corrected gamma setting is stored to the storage j element of the digital light processing projector, and the digital light processing projector automatically calls the gamma in the storage time element each time projection The horse setting makes the color performance of the mass production machine the same as that of the standard light machine color, thus ensuring the uniformity of color performance of the mass production machine. In summary, the invention has indeed met the requirements of the invention patent, and relies on the patent. Application. However, the above is only the preferred embodiment of the present invention 096149429 [0028] Form No. A0101 Page 9 / Total 16 Page 0993460089-0 [0029] 1339313

I mm Λ 1 I |jjyy+丄乙J3 B 4 0. Anyone who is familiar with the skill of this case, the equivalent modification or change made by the aid in the spirit of the invention shall be included in the following patent application scope. 1 is a block diagram of a color optimization system for a digital light processing projector according to the present invention; [0031] FIG. 2 is a flow chart showing a color optimization step of a digital light processing projector according to the present invention; [0032] FIG. A flow chart of the steps of the light processing projector adjusting the initial luminance ratio to a preset standard luminance ratio. [Main component symbol description] [0033] Digital light processing projector color optimization system is at the age of f 1 0 '.· :'··. , . .. , Υί ..

[0034] Color Analyzer: 10:3⁄4 ...... ..···., ' ..··>». · ϋ:.-...

[0035] Digital Light Processing Projector: 20 [0036] Memory Unit: 22 [0037] Central Processing Unit: 30 [0038] Signal Acquisition Unit: 32 [0039] Brightness Ratio Adjustment Unit: 34 [0040] Comparison Unit: 3 6 [0041] Color coordinate value adjustment unit: 38 096149429 Form number Α 0101 Page 10 / Total 16 page 0993460089-0

Claims (1)

December 24, 099 Shuttle is replacing page 7. Patent application scope: 1. A digital light processing projector color optimization system, comprising: a color analyzer for sensing a picture and acquiring red of the picture, a luminance ratio of the green and blue primary colors and a color coordinate value of the picture at the luminance ratio; a digital light processing projector for projecting a first projection image to an external screen, and outputting the first projection image to a color analyzer; a central processor configured to receive the first projection screen output from the projector, and an initial luminance ratio of a first projection image output from the color analyzer, and adjust the initial The luminance ratio is up to a preset standard luminance ratio to form a second projection picture, the second projection picture is outputted to the color analyzer, and the color coordinate value of the second projection picture is obtained from the color analyzer, and the comparison is performed. Determining the difference between the color coordinate value of the second projection picture and the preset standard color coordinate value, and adjusting the color coordinate value of the second projection picture according to the difference of the color coordinate value to reach The standard color coordinate values are converted to the corrected gamma settings, and the output corrected gamma settings are stored to the digital light processing projector. 2. The digital light processing projector color optimization system of claim 1, wherein the digital light processing projector comprises a storage unit, the storage unit storing the corrected gamma setting. 3. The digital light processing projector color optimization system according to claim 1, wherein the central processing unit comprises a signal acquisition unit, a luminance ratio adjustment unit, a comparison unit, and a color coordinate value adjustment unit, wherein the signal is Obtaining, by the acquiring unit, an initial luminance ratio of the first projection screen, a first luminance ratio, and a color coordinate value of the second projection pupil; the luminance form number A0101 page 11/16 pages 0993460089-0 1339313 | U33 平丄Z月ζ4α S^ih:g^RI The ratio adjusting unit adjusts the initial luminance ratio to reach the preset standard luminance ratio; the comparing unit compares the color coordinate values of the second projection screen a difference from the preset standard color coordinate value; the color coordinate value adjustment unit adjusts a color coordinate value of the second projection picture according to the difference of the color coordinate value to reach the standard color coordinate value and converts into a correction After the gamma setting. A color optimization method for a digital light processing projector, comprising the steps of: receiving a signal, projecting a first projection image to an external screen; sensing the first projection surface, and acquiring an initial corresponding to the first projection surface I the initial luminance ratio; adjusting the initial luminance ratio to the 41 required luminance ratio of the sword pre-set to form a second projection picture; : 3⁄4 朽:: 4 sensing the second projection picture, obtaining the second projection picture Comparing the color coordinate value of the old facet; comparing the difference between the color coordinate value of the second projection face and the preset standard color coordinate value; adjusting the color coordinate value of the second projection picture to the difference according to the color coordinate value difference I to the standard color coordinate value and convert to the corrected gamma setting; the output corrected gamma setting is stored to the digital light processing projector. 5. The digital light processing projector color optimization method according to claim 4, wherein the adjusting the initial luminance ratio to a preset standard luminance ratio to form the second projection screen comprises the following steps: determining the Determining the attenuation ratio of the three primary colors of the first projection picture with respect to the three primary colors of the standard optical machine, and correcting the effective on-time of the three primary colors of the first projection picture, so that the three primary colors of the first projection picture are attenuated corresponding to the luminous flux, In order to make the first projection screen three primary colors reach the standard luminance ratio of the three basic colors of the optical machine form 096149429 Form No. 101 0101 Page 12 / Total 16 Page 0993460089-0 1339313 _ December 24, 1999, the nuclear replacement page two projection screen. 6. The digital light processing projector color optimization method according to claim 4, wherein the adjusting the color coordinate value of the second projection picture according to the color coordinate value difference until the standard color coordinate value is achieved is Changing the three primary color luminances of the second projection picture to adjust the color coordinate value of the second projection picture to a standard color coordinate value. 0993460089-0 096149429 Form No. A0101 Page 13 of 16