CN1215198A - Indicating control method and information processing device - Google Patents
Indicating control method and information processing device Download PDFInfo
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- CN1215198A CN1215198A CN 98106034 CN98106034A CN1215198A CN 1215198 A CN1215198 A CN 1215198A CN 98106034 CN98106034 CN 98106034 CN 98106034 A CN98106034 A CN 98106034A CN 1215198 A CN1215198 A CN 1215198A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/06—Details of flat display driving waveforms
- G09G2310/066—Waveforms comprising a gently increasing or decreasing portion, e.g. ramp
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0606—Manual adjustment
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
- G09G2320/0633—Adjustment of display parameters for control of overall brightness by amplitude modulation of the brightness of the illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
- G09G2320/0653—Controlling or limiting the speed of brightness adjustment of the illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Controls And Circuits For Display Device (AREA)
- Liquid Crystal Display Device Control (AREA)
- Power Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Television Receiver Circuits (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
In a display unit, a luminance of a display part (1) having a luminance adjusting function is gradually decreased from a maximum luminance value to a minimum luminance value with lapse of time, even during an operation other than a luminance adjusting operation.
Description
Relate generally to display control method of the present invention and signal conditioning package relate in particular to the display control method of the display unit that is suitable for controlling battery driven and use the signal conditioning package of this display control method.
Recently, more and more generally use portable information processing device.Because it is battery-powered to be with laptop PC and portable communication device that the portable information processing device of representative is all used when carrying, thereby requires power consumption is reduced to minimum to prolong the serviceable life of electric battery.According to routine, in order to reduce power consumption, reduce the clock frequency of CPU (central processing unit) (CPU), stop operating recording medium for example disk motor or reduce the luminance brightness of returning of LCD (LCD).But because the user mode difference of signal conditioning package, the measure of the reduction power consumption of being taked has caused inconvenience, thereby the inconvenience such as the bad operating characteristic generation that reduces processing speed and signal conditioning package is avoided in requirement.
Using LCD to make the situation of display unit, preferably dispose one and return the light parts so that observe LCD.When the light parts are returned in not excessive configuration, be used to show that desired power consumption will increase, and use electric battery to do under the situation of power supply at portable information processing device, shortened the serviceable life of electric battery.For this reason, the brightness regulation of display unit is carried out according to first method is manual by the life-span of considering battery by the user usually, perhaps according to second method the brightness of display unit is forced to be set at a minimum brightness value.But when using first method, the user must know the life-span of electric battery and the brightness of manual adjustment display unit at any time, thereby makes the complicated operationization of signal conditioning package.On the other hand, when using second method,, then be difficult to visible demonstration if the minimum brightness value is very little, and if the minimum brightness value is big relatively, the effect of minimizing power consumption is little again.
Therefore, when using first method, problem is that the operation of signal conditioning package complicates and the operating characteristic variation of signal conditioning package.Also have, when using second method, problem is to be difficult to visible demonstration if the minimum brightness value is very little, if the minimum brightness value is big relatively, the effect that reduces power consumption is little again, thereby can not realize easy observable demonstration and low power consumption simultaneously.
On the other hand, for example say in the publication application No.5-188869 of Japan and advised a kind of method that this method is at the brightness and the final display unit that turn-offs that continue successfully to reduce when a preset time does not conduct interviews to information display device display unit.But, according to the method for this suggestion, when signal conditioning package was conducted interviews, the brightness of display unit will automatically revert to maximum brightness value, and for this reason, the method for this suggestion has those problems that are similar to above-mentioned second method.In other words, if high-high brightness is set to a less relatively numerical value, then be difficult to visible demonstration, if maximum brightness value is set at a relatively large numerical value, power consumption can not be done very for a short time again.
Therefore, a catalogue of the present invention provides a kind of novel useful display control method and signal conditioning package of having eliminated the problems referred to above.
Of the present invention another more specifically purpose provide a kind of signal conditioning package of display control method, can reduce power consumption and not need complicated operations and can not make the demonstration on the display unit be difficult to visible.
Another purpose again of the present invention provides a kind of display control method, it comprises a brightness regulation step in the display unit, even, reduce the brightness of display unit gradually to the minimum brightness value from maximum brightness value with a period of time with brightness control function in the operating period that is not brightness adjustment operation.According to display control method of the present invention, can reduce power consumption and do not require complicated operations and can not make the demonstration on the display unit be difficult to visible.
A further object of the present invention provides a kind of signal conditioning package, device comprises a display unit with brightness regulation effect, with one even in the operating period that is not brightness adjustment operation, the display control unit spare that the brightness of display unit is reduced to the minimum brightness value gradually from maximum brightness value with a period of time.According to signal conditioning package of the present invention, can reduce power consumption and do not require complicated operations, and can not make the demonstration on the display unit be difficult to visible.
Other purposes of the present invention and further characteristic, being described in detail and will coming into plain view below reading in conjunction with the drawings:
Fig. 1 is a system block diagram, and a vitals according to signal conditioning package first embodiment of the present invention is shown;
Fig. 2 is a curve map, the brightness the when set parts that luminance control unit is shown is not worked;
Fig. 3 is a curve map, and the brightness in set parts when work of luminance control unit is shown;
Fig. 4 is a system block diagram, and a vitals according to signal conditioning package second embodiment of the present invention is shown;
Fig. 5 is a curve map, and a linear function that uses when reducing brightness value gradually is shown;
Fig. 6 is a curve map, and a nonlinear function that uses when reducing brightness value gradually is shown;
Fig. 7 is a process flow diagram that is used to illustrate controller work;
Fig. 8 is a process flow diagram, is used to illustrate the work at the 3rd modification middle controller of second embodiment;
Fig. 9 is a process flow diagram, is used to illustrate the work at the 4th modification middle controller of second embodiment; And
Figure 10 is a curve map, is used to illustrate the brightness variation according to the 4th modification of second embodiment of the invention.
Fig. 1 is a system block diagram, and a vitals according to signal conditioning package first embodiment of the present invention is shown.This of signal conditioning package first embodiment has used first embodiment according to display control method of the present invention.In addition, in this first embodiment of signal conditioning package, the present invention is applied on a kind of portable information processing device.Portable information processing device for example say so a laptop PC, a portable communication device or the like.
In Fig. 1, signal conditioning package generally includes a display unit 1, a luminance control unit 3 and an information processing apparatus 4.Display unit 1 usefulness LCD, PDP, CRT or the like making also have brightness control function.This display unit 1 shows the display message that receives from signal conditioning package 4 according to the monochrome information that receives from luminance control unit 3.Luminance control unit 3 comprises that is equipped with a set parts and the controller of making of CPU and so on that button, knob, button or the like are used to regulate brightness.
The monochrome information that the brightness value that 1 supply of the oriented display unit of the controling appliance of luminance control unit 3 is set with information processing element 4 changes and be used for automatically the function that the brightness with display unit 1 reduced to the minimum brightness value from maximum brightness value with predetermined transit time to display unit 1 supply.In addition, when the set parts that uses luminance control unit 3 improves the operation of brightness, will be this operational notification information processing apparatus 4, and, the controller of luminance control unit 3 also has the function that automatically minimum brightness value is modified to a certain brightness value when carrying out this operation according to the brightness configuration information of information processing apparatus 4.
Information processing apparatus 4 according to the input mechanism (not shown) for example the input of keyboard and be supplied with the brightness configuration information of the brightness value of setting about input mechanism or above-mentioned set parts to luminance control unit 3 to display unit 1 supply display message.Maximum brightness value and minimum brightness value can be set in advance or be located in the luminance control unit 3 by information processing apparatus 4 according to the input of input mechanism.In addition, the above-mentioned predetermined transition time also can be set in advance or be located in the luminance control unit 3 by information processing apparatus 4 according to the input of input mechanism.
Display unit 1 can be realized with a display unit with known structure, and information processing apparatus 4 can be realized with an information processing apparatus with known structure.This embodiment is characterised in that the control procedure of brightness controller parts 3.
Fig. 2 and 3 is respectively the curve map that is used to illustrate the work of luminance control unit.In Fig. 2 and 3, ordinate represents that the monochrome information according to luminance control unit 3 output is presented at the brightness number on the display unit 1, horizontal ordinate express time.In addition, K1 represents maximum brightness value, and K2 represents the minimum brightness value.
Fig. 2 illustrates the not brightness of operative scenario of set parts of luminance control unit 3.In this situation, for simplicity, the brightness of supposing display unit 1 drops to minimum brightness value K2 in the predetermined transition time T 1 from moment ta to tb constantly, do not consider whether input block works, and that is to say, whether does not consider visit information processing element 4.For example, moment ta is corresponding to the moment of the power connection of signal conditioning package.To use a period of time because the brightness of display unit 1 descends automatically gradually,, not be difficult to see that demonstration so that user feel under the weather or unhappiness and can not make so might reduce the power consumption of display unit 1 gradually.
The work brightness of situation of the set parts that Fig. 3 illustrates luminance control unit 3.In this situation, for simplicity, suppose that the brightness of display unit 1 reduces gradually from moment ta, whether do not consider visit information processing element 4, and discover brightness and descend when too many that brightness value is increased to K3 by set parts at moment tc the user.Suppose that also being adjusted parts at brightness value increases brightness to the moment of K3, just flashy brightness value is K2A before increasing brightness value.The minimum brightness value that is located in the controller of luminance control unit 3 is modified to this brightness value K2A.Therefore, after moment tc, the brightness of display unit 1 descends from brightness value K3 gradually, and drops to the minimum brightness value K2A of this modification at moment t ' b.
Therefore, when the user increases the operation of brightness, brightness value will can not drop to the brightness value when carrying out this operation.For this cause, use the minimum brightness value to make and be suitable for the demonstration of user's needs or hobby, and might reduce the power consumption of display unit 1 gradually, and can not make demonstration be difficult to see, so that the user feels under the weather or unhappiness.
Next step is with the narration that provides according to signal conditioning package second embodiment of the present invention.Fig. 4 is a system block diagram, and the vitals of signal conditioning package second embodiment is shown.This of signal conditioning package second embodiment has used second embodiment according to display control method of the present invention.In this second embodiment of signal conditioning package, the present invention is applied to the portable information processing device that the LCD of light parts is brought in a kind of use back to.In Fig. 4, those parts the same with corresponding component among Fig. 1 are marked with same label, and will omit the narration to them.
In Fig. 4, display unit 1 has and comprises a LCD11 and a known structure of returning light parts 12.Return light parts 12 fluorescent light 13 and a fluorescent lamp power supply 14 are arranged.Luminance control unit 3 comprises that a controller 31 of making and have a storer 31a of CPU and so on and one have the set parts 32 of the button that is used to regulate brightness, knob, button or the like.In addition, information processing apparatus 4 has a known structure, includes an I/O (I/O) interface that is coupled by bus 40 41, a CPU42, a storer 43 and a controller 44.Controller 31 is coupled to fluorescent lamp power supply 14.Set parts 32 is coupled to controller 31.In addition, set parts 32 and keyboard 7 are coupled to I/O interface 41 respectively, and I/O interface 41 is coupled to controller 31.Display controller 44 is coupled to LCD11.
High-high brightness numerical value, minimum brightness numerical value, predetermined transit time, function of being used for reducing brightness number gradually or the like all are stored in the storer 31a the inside of controller 31.Fig. 5 and 6 is respectively curve map, and expression is used for reducing gradually the function of brightness value.In Fig. 5 and 6, ordinate is represented brightness, the horizontal ordinate express time.Fig. 5 illustrates function and is linear situation, and the slope of this function can be set arbitrarily.On the other hand, it is nonlinear situation that Fig. 6 illustrates function, and the curve of this function also can be set arbitrarily.In addition, also may in storer 31a, store a function, perhaps function of being stored of Instruction Selection that a plurality of functions of storage and basis are imported from keyboard 7 in storer 31a.
Be fed to CPU42 from the information of keyboard 7 input or from the information of an external unit input via the I/O interface 41 of information processing apparatus 4 the insides.Display message then is fed to LCD11 from CPU42 via display controller 44.In addition, in the situation of setting brightness value with keyboard 7, the brightness settings information of relevant this brightness value is fed to controller 31 via the I/O interface 41 under the control of CPU42.In the situation that brightness value is set by operating and setting parts 32, the notice of relevant this operation is delivered to CPU42 from set parts 32 via I/O interface 41, and CPU42 will be fed to controller 31 via I/O interface 41 on the brightness configuration information that this notice is decided.For example, storer 43 is made up of ROM that is storing the program that will be carried out by CPU42 and the RAM that storing the intermediate result of CPU42 or the performed operation of like.Display controller 44 is according to the demonstration on level of setting under the CPU42 control and vertical scanning frequency control LCD11.
Certainly, can save set parts 32 and the function setting of set parts 32 in keyboard 7.
Fig. 7 is a process flow diagram that is used to illustrate the work of controller 31.In Fig. 7, step S1 sets brightness initial value, i.e. a maximum brightness value according to the brightness configuration information from information processing apparatus 4 in storer 31a.Whether step S2 decision reduces brightness value according to the function that is stored among the storer 31a.If the determination result of step S2 negates that then step S3 judges whether it is the brightness of being regulated by operating and setting parts 32.If the judged result of step S3 negates that then program is returned to S2.
If the determination result of step S2 is sure, then whether step S4 judgement brightness value is the minimum brightness value that is stored among the storer 31a, and if the judged result of step S4 be that program enters step S3 recited above certainly.On the other hand, if the court verdict of step S4 is negated that then step S5 reduces brightness according to Fig. 5 or function shown in Figure 6 and that be stored among the storer 31a, and program enters step S3 after this.
In addition, if the judged result of step S3 is sure, step S6 is revised as current brightness value with the minimum brightness value of storing among the storer 31a automatically.Step S7 is increased to the brightness value that the user sets according to the operation of set parts 32 with brightness, and program is returned to step S2 then.
In step S2, can also determine whether to reduce brightness value according to the power information that is fed to the I/O interface from external unit, rather than whether decision reduces brightness value according to the function that is stored among the storer 31a.
In first modification of second embodiment, step S2 be according to the power supply of LCD just the power supply of signal conditioning package be that electric battery determines whether reduce brightness value.The power supply that can detect signal conditioning package with known devices is electric battery or A.C. power supply.Therefore, the power information that receives from external unit according to the I/O interface of this first modification is by judging power supply is that electric battery determines whether reduce brightness value.
In second modification of second embodiment, step S2 is the power supply according to LCD11, and just the power supply of signal conditioning package is whether the dump energy of electric battery and electric battery is less than or equal to a predetermined value and determines whether reduce brightness value.Can detect electric battery dump energy with known devices as the signal conditioning package power supply.Therefore, whether this second modification is less than or equals predetermined value to determine whether reduce brightness value according to the power information that I/O interface 41 receives from external unit by the electric battery dump energy that judgement is used as power supply.
In the 3rd modification of second embodiment, step S2 according to the power supply of LCD11 just the power supply of signal conditioning package be that electric battery determines whether reduce brightness number.Whether the power supply that can detect signal conditioning package with a known devices is an A.C. power supply.Therefore, the power information that receives from external unit according to I/O interface 41 of this 3rd modification is by judging power supply is that the A.C. power supply determines whether reduce brightness value.
In the situation of this 3rd modification, the step S2 system shown in Fig. 7 is made up of step S21 shown in Figure 8 and S22.Step S21 judges that according to power information power supply is the A.C. power supply, and enters step S4 in the judged result of step S21 program when negating.On the other hand, if the judged result of step S21 certainly, then step S22 is fixed on one greater than a brightness value that is stored in the minimum brightness value among the storer 31a (because when using the A.C. power supply, power consumption is not a big problem) with brightness, and program enters step S3.
In the 4th modification of second embodiment, step S2 according to the power supply of LCD11 just the power supply of signal conditioning package be whether the dump energy of electric battery and electric battery is less than or equal to a predetermined value and determines whether reduce brightness value.In addition, step S2 is modified to a littler numerical value to the minimum brightness value when the dump energy of electric battery is less than or equal to predetermined value, to avoid damaging the electric battery with little dump energy.As mentioned above, the electric battery dump energy as the signal conditioning package power supply can detect with known devices.Therefore, the power information that this 4th modification receives from external unit according to I/O interface 41, whether be less than or equal to a predetermined value by the dump energy of judging electric battery and determine whether reduce brightness value, and become in the dump energy of electric battery and minimum luminance value to be modified to littler numerical value when being less than or equal to a predetermined value.
In the situation of this 4th modification, the step S2 shown in Fig. 7 is made up of step S21 to S24 shown in Figure 9.In Fig. 9, those steps the same with corresponding steps among Fig. 8 are all with marking with the same label, and will omit the narration to them.In situation shown in Figure 9, if the judged result among the step S21 negates, then step S23 judges according to power information whether the dump energy of electric battery is less than or equal to predetermined value, and if the judged result among the step S23 negate, just program enters step S4.On the other hand, if the judged result among the step S23 certainly, then the step S24 minimum brightness value that will be stored among the storer 31a is modified to minimum numerical value, and program enters step S4 after this.
Figure 10 is a curve map, is used to illustrate that the brightness according to second embodiment the 4th modification changes.In Figure 10, ordinate is represented brightness, the horizontal ordinate express time.For convenience's sake, suppose brightness according to nonlinear function when maximum brightness value K1 is reduced to minimum brightness value K2 gradually, the power supply of signal conditioning package switches to the A.C. power supply at moment tx from electric battery.In addition, suppose also when electric battery is used as the power supply of signal conditioning package that the dump energy of electric battery becomes at moment ty and is less than or equal to predetermined value.In this 4th modification, brightness moment tx be fixed to a brightness value K3 (K3＞K2), and minimum brightness value K2 moment ty be modified to a brightness value K4 (K4＜K2), the same above the erect image in conjunction with what Fig. 9 narrated.
In addition, the present invention is not limited to these embodiment, just can not make various change example and modification but do not need to depart from the scope of the present invention.
Claims (16)
1. display control method, it is characterized in that a brightness regulation step in the display unit, even, reduce the brightness of display unit gradually to the minimum brightness value from maximum brightness value with a period of time with brightness control function in the operating period of non-brightness adjustment operation.
2. according to the display control method of claim 1, it is characterized in that also comprising the step that is provided with of setting one of maximum brightness value and minimum brightness value at least.
3. according to the display control method of claim 1 or 2, automatically the minimum brightness value is modified to the modify steps of a brightness value when it is characterized in that also being included in the brightness adjustment operation that improves display unit brightness.
4. according to the display control method of claim 1 to 3, it is characterized in that described brightness regulation step reduces the brightness of display unit gradually according to a linearity or nonlinear function.
5. according to the display control method of arbitrary of claim 1 to 4, it is characterized in that described brightness regulation step is only in the brightness of display unit with reduction display unit under the situation of battery driven.
6. according to the display control method of arbitrary of claim 1 to 4, it is characterized in that described brightness regulation step becomes in the electric battery dump energy that drives display unit reduces the brightness of display unit when being less than or equal to a predetermined value.
7. according to the display control method of arbitrary of claim 1 to 4, it is characterized in that described brightness regulation step is fixed to a brightness value greater than minimum brightness value with the brightness of display unit at display unit under with the situation of other power drives beyond the electric battery.
8. according to the display control method of arbitrary of claim 1 to 7, it is characterized in that display unit system selects for use from comprise a group display unit with LCD, plasma display panel (PDP) and CRT of returning the light parts.
9. signal conditioning package, comprise a display unit (1) with brightness control function, it is characterized in that providing a luminance control unit (3), even, the brightness of described display unit (1) is reduced to the minimum brightness value gradually from maximum brightness value with a period of time in the operating period that is not brightness adjustment operation.
10. according to the signal conditioning package of claim 9, it is characterized in that also comprising a setting device (7,4,32), be used for setting at least one of maximum brightness value and minimum brightness value.
11. signal conditioning package according to claim 9 or 10, it is characterized in that described luminance control unit (3) comprises modifier (31), be used for when the brightness adjustment operation of the brightness that increases display unit (1), automatically the minimum brightness value being modified to a brightness value.
12., it is characterized in that described luminance control unit (3) reduces the brightness of display unit (1) according to linearity or nonlinear function according to the signal conditioning package of arbitrary of claim 9 to 11.
13., it is characterized in that described luminance control unit (3) comprises the control device (4) of the brightness that is used for only reducing display unit (1) under the situation of display unit with battery driven according to the signal conditioning package of arbitrary of claim 9 to 12.
14. according to the signal conditioning package of arbitrary of claim 9 to 12, it is characterized in that described luminance control unit (3) comprises being used for becoming in the electric battery dump energy that drives display unit reduces the control device (4) of the brightness of display unit (1) when being less than or equal to a predetermined value.
15., it is characterized in that described luminance control unit (3) comprises and be used for being fixed to a control device (4) by the brightness that the drive source that is not electric battery drives under the situation display unit (1) greater than the brightness value of minimum brightness value at display unit according to the signal conditioning package of arbitrary of claim 9 to 12.
16., it is characterized in that described display unit (1) is to select for use from comprise a group display unit with LCD, plasma display panel (PDP) and CRT of returning the light parts according to the signal conditioning package of arbitrary of claim 9 to 15.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9287338A JPH11119877A (en) | 1997-10-20 | 1997-10-20 | Display control method and information processor |
| JP287338/97 | 1997-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1215198A true CN1215198A (en) | 1999-04-28 |
Family
ID=17716086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98106034 Pending CN1215198A (en) | 1997-10-20 | 1998-03-05 | Indicating control method and information processing device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0911799A3 (en) |
| JP (1) | JPH11119877A (en) |
| KR (1) | KR19990036446A (en) |
| CN (1) | CN1215198A (en) |
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| EP0404182B1 (en) * | 1989-06-23 | 1996-04-10 | Kabushiki Kaisha Toshiba | Personal computer for setting, in setup operation, normal/reverse display, external device, and automatic display off |
| US5384516A (en) * | 1991-11-06 | 1995-01-24 | Hitachi, Ltd. | Information processing apparatus including a control circuit for controlling a liquid crystal display illumination based on whether illuminatio power is being supplied from an AC power source or from a battery |
| JP2818915B2 (en) * | 1992-01-14 | 1998-10-30 | シャープ株式会社 | Portable information processing device |
| US5636041A (en) * | 1995-05-24 | 1997-06-03 | Dell Usa, L.P. | Technique for increasing the visibility of an LCD panel during warm-up thereof |
| JP2900997B2 (en) * | 1996-11-06 | 1999-06-02 | 富士通株式会社 | Method and apparatus for controlling power consumption of a display unit, a display system including the same, and a storage medium storing a program for realizing the same |
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1997
- 1997-10-20 JP JP9287338A patent/JPH11119877A/en active Pending
-
1998
- 1998-02-19 EP EP98301219A patent/EP0911799A3/en not_active Withdrawn
- 1998-02-20 KR KR1019980005328A patent/KR19990036446A/en not_active Application Discontinuation
- 1998-03-05 CN CN 98106034 patent/CN1215198A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101441861B (en) * | 2007-11-23 | 2010-10-13 | 佛山市顺德区汉达精密电子科技有限公司 | Apparatus and method for low brightness display |
| US8576158B2 (en) | 2008-02-19 | 2013-11-05 | Hannstar Display Corporation | Contrast ratio promotion method |
| CN103884365A (en) * | 2012-12-20 | 2014-06-25 | 矢崎总业株式会社 | Display device |
| CN103631359A (en) * | 2013-11-15 | 2014-03-12 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN112530345A (en) * | 2020-12-11 | 2021-03-19 | 深圳市创智成科技股份有限公司 | Display screen brightness adjusting method and notebook computer |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0911799A2 (en) | 1999-04-28 |
| KR19990036446A (en) | 1999-05-25 |
| EP0911799A3 (en) | 2000-05-31 |
| JPH11119877A (en) | 1999-04-30 |
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