Embodiment
Fig. 2 is the circuit box synoptic diagram according to the computer system of first embodiment of the invention.The computer system 500 of present embodiment exposure comprises a display system 2, one main circuit devices 60 at least, and a special pattern starter gear 62.This display system 2 is to be example with the liquid crystal display systems, but is not to be defined in this.This liquid crystal display systems 2 more comprises a LCD 26, in order to show image; And an image processor 20 in order to export blue B, green G, red R (28) signal, supplies this LCD 26 to show.This image processor 20 comprises a display chip 22, and a signal transmission channel 24.This display chip 20 receives image input (not icon) basically, carry out the processing of image demonstration after, export to signal transmission channel 24.This display chip 22 has gamma (Gamma) processing capacity, can red, blue, green input data (not icon) in this image input be converted into red, blue, green output data (r, b, g) according to the corresponding relation of specific curves.
This main circuit device 60; Be responsible for the main running of this computer system 500; The for example computing of operating system, (image) signal of will video picture handling is transferred to image processor (20) and is handled, and exports red R, green G, blue B signal to LCD (26) with video picture.
With reference to Fig. 5, be example with the redness, show the corresponding curve relation figure that carries out the Gamma conversion for redness input data.For example; This display chip 22 receives between redness of 0~255 digital color range (or briliancy) and imports data (in this so-called color range; The depth program that also is about to redness is subdivided into 0~255 respective value (level)); According to the corresponding relation of Fig. 5 curve a, input levels is similar to one to one with the corresponding relation of output levels.In like manner, blue, green input data (b, g) also can be carried out the conversion of correspondence according to other Gamma curve (not icon).Therefore, this image processor 20, an available software 222 are directly controlled the Gamma conversion in the display chip 22, and the color range of adjustable magenta color output data.For example, can the color range of red output data be downgraded zero, or shown in Fig. 5 curve b, downgrade the color range of red output data with a preset ratio.Wherein, this software 222 for example is the driver of this display chip 22.
Blue, green output data and the red output data that downgrades the back through signal transmission channel 24, and become blue B, green G, red R (28) signal, supply this LCD 26 to show.Because red output data is through downgrading, the color range (or briliancy) of red R (28) signal also downgrades thereupon, so the red composition of 26 show images of this LCD reduces, watches under special circumstances so be fit to the user.For example; The user is when wearing night-vision devices and observe the display message of LCD; Just can take respective operations (for example, to open a special pattern, voluntarily again by the mode of trigger signals activation (enable) hardware or software to produce a trigger signals; And then downgrade red composition, so can not make night-vision devices produce the briliancy of supersaturation.
The operation that aforementioned user can take voluntarily; Can and reach through this special pattern starter gear 62; For example when using night-vision devices to watch the demand of LCD (26~46) institute video data; The user can open this special pattern starter gear 62 in advance and (for example see through and push a predetermined key ... Etc. mode); And produce this trigger signals, carry out operation respectively to make image processor (20~30), to meet the visual experience permissible range of watching through night-vision devices like aforementioned reduction red signals R.
The signal transmission channel 24 of present embodiment; For example comprise transistor-transistor-logic (transistor-transistor-logic; TTL) or the low voltage differential signal (low voltage differential signaling, LVDS) device, carry out the conversion of necessity in order to red, blue, the green output data that display chip is seen off; And produce this red, blue, green signal (R, B, G), and export this LCD 26 to.In addition, Gamma transformation curve a, b shown in Figure 5 are straight line, are merely the usefulness of illustration, but are not to be defined in this, and the transformation curve shape of reality is looked closely practical application and decided.In addition, this main circuit device 60 and special pattern starter gear 62 also can be arranged in this display system 2.
Fig. 3 is the circuit box synoptic diagram according to the computer system of second embodiment of the invention.The computer system 600 of present embodiment exposure comprises a display system 3, one main circuit devices 60 at least, and a special pattern starter gear 62.This display system 3 is to be example with the liquid crystal display systems, but is not to be defined in this.Liquid crystal display systems 3 comprises a LCD 36; And an image processor 30 in order to export blue B, green G, red R (28) signal, supplies this LCD 36 to show.This image processor 30 comprises a display chip 32, and a signal transmission channel 34.This display chip 30 receives image input (not icon) basically, and after the processing of carrying out the image demonstration, output has, and output data red, blue, green (r, b, g) one-tenth branch is given signal transmission channel 34.
This main circuit device 60; Be responsible for the main running of this computer system 600; The for example computing of operating system, (image) signal of will video picture handling is transferred to image processor (30) and is handled, and exports red R, green G, blue B signal to LCD (36) with video picture.
The signal transmission channel 34 of present embodiment; For example comprise transistor-transistor-logic (TTL) or low voltage differential signal (LVDS) device; Data (r, b, g) in order to display chip 32 is seen off are carried out the conversion of necessity; And produce this red R (28), blue B, green G signal, and export this LCD 36 to.Be noted that, more carry a color management chip 343 that can carry out Gamma adjustment in the signal transmission channel 34, produce this red R (28), blue B, green G signal with the above-mentioned TTL that arranges in pairs or groups, LVDS running to data (r, b, g).The Gamma adjustment that 343 of this color management chips carry out, identical like the said person of first embodiment, so no longer give unnecessary details.
This image display 30 utilizes this color management chip 343 further to downgrade 32 data r that see off of this display chip, and then downgrades the color range of red signals R (28).So the red composition of 36 show images of this LCD reduces, watch under special circumstances so be fit to the user.For example, the user can not make night-vision devices produce the briliancy of supersaturation when wearing night-vision devices and observe the display message of LCD.Likewise, downgrade red signals R (28), for example, can its color range be downgraded zero, or shown in Fig. 5 curve b, downgrade its color range with a preset ratio.In like manner, the action of this special pattern starter gear 62 is identical with first embodiment, so no longer give unnecessary details.In addition, this main circuit device 60 and special pattern starter gear 62 also can be arranged in this display system 3.
Fig. 4 is the circuit box synoptic diagram according to the computer system of third embodiment of the invention.The computer system 700 of present embodiment exposure comprises a display system 4, one main circuit devices 60 at least, and a special pattern starter gear 62.This display system 4 is to be example with the liquid crystal display systems, but is not to be defined in this.Liquid crystal display systems 4 comprises a LCD 46; And an image processor 40 in order to export blue B, green G, red R (28) signal, supplies this LCD 46 to show.This image processor 40 comprises a display chip 42, one signal transmission channels 44, and a switchgear 48.This display chip 42 receives image input (not icon) basically, and after the processing of carrying out the image demonstration, output has, and output data red, blue, green (r, b, g) one-tenth branch is given signal transmission channel 44.
This main circuit device 60; Be responsible for the main running of this computer system 600; The for example computing of operating system, (image) signal of will video picture handling is transferred to image processor (30) and is handled, and exports red R, green G, blue B signal to LCD (36) with video picture.
The signal transmission channel 44 of present embodiment; For example comprise transistor-transistor-logic (TTL) or low voltage differential signal (LVDS) device; Data (r, b, g) in order to display chip 42 is seen off are carried out the conversion of necessity; And produce this red R (28), blue B, green G signal, and export this LCD 46 to.Be noted that red signals R (28) needs can transfer to this LCD 46 through this switchgear 48.Therefore; When the display system 4 of present embodiment is used under special circumstances (for example; The user is when wearing night-vision devices and observe the display message of LCD), the user blocks this red signals R (28) by closing (off) this switchgear 48, makes LCD 46 can't receive red signals R (28); That is the color range that is equal to red signals R (28) downgrades zero, so can not make the briliancy of night-vision devices generation supersaturation.This device for image 40 can be with software (not icon) or controller (not shown) one of are set in it ... Deng, control the mode of operation of this switchgear 48.The user can see through this special pattern starter gear 62 of unlatching and close (off) this switchgear 48.In like manner, the action of this special pattern starter gear 62 is identical with first embodiment, so no longer give unnecessary details.In addition, this main circuit device 60 and special pattern starter gear 62 also can be arranged in this display system 4.
Fig. 6 shows the flow chart of steps according to the present invention's display-apparatus driving method.Below will elaborate with reference to Fig. 5~7 in the lump.At first, receive a signal of video signal (step S1) by device for image (20,30 or 40).As previously mentioned; If this display device (2,3 or 4) will be used under special circumstances; The user should open special pattern starter gear 62 earlier; So the computer system of Fig. 5~7 (500,600 or 700) can see through software or hardware unit etc., detecting learns that whether present display (26,36 or 46) is in use (step S2) in particular cases.Use if display (26,36 or 46) lies in particular cases, then device for image (20,30 or 40) will utilize aforementioned variety of way, and the color range of red signal R is downgraded (step S3); Afterwards, again with blue B, green G and the red signals R after downgrading color range output supply the usefulness (step S4) of display (26,36 or 46).If display (26,36 or 46) is not to use in particular cases, device for image (20,30 or 40) then, normal output blue B, green G, and red signals R (downgrading without crossing) supply with use (the step S5) of display (26,36 or 46) demonstrations.
Though the present invention discloses as above with preferred embodiment; Right its is not in order to limiting the present invention, anyly has the knack of this art, in spirit that does not break away from the present invention and scope; When doing various changes and retouching, so the claim person of defining that the present invention's protection domain attaches after looking is as the criterion.