JPH0594240A - Computer system - Google Patents

Computer system

Info

Publication number
JPH0594240A
JPH0594240A JP3234687A JP23468791A JPH0594240A JP H0594240 A JPH0594240 A JP H0594240A JP 3234687 A JP3234687 A JP 3234687A JP 23468791 A JP23468791 A JP 23468791A JP H0594240 A JPH0594240 A JP H0594240A
Authority
JP
Japan
Prior art keywords
time
display device
battery
built
power consumption
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3234687A
Other languages
Japanese (ja)
Other versions
JP2983349B2 (en
Inventor
Makoto Ando
眞 安藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP3234687A priority Critical patent/JP2983349B2/en
Publication of JPH0594240A publication Critical patent/JPH0594240A/en
Application granted granted Critical
Publication of JP2983349B2 publication Critical patent/JP2983349B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To realize configuration, in which driving time does not depend on an energy consuming amount in a one-sided manner, by preferentially setting picture luminance to the driving time at the computer system which can be driven by a built-in battery equipped with a liquid crystal display device with backlight. CONSTITUTION:This system is equipped with a means to promote the setting of the driving time to a user and to input the set time so as to arbitrarily set the system driving time of a liquid crystal display device 13 with backlight, means to detect the remaining capacity of a built-in battery 12, timer 11 to count the passage of system operating time, and control circuit 6 to judge the remaining drive enable time due to the built-in battery 12 according to the energy consumption of the display device 13 and the energy consumption of the entire system, to decide the energy consuming amount of the display device 13 according to the set driving time and to control the display device 13.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の目的】[Object of the Invention]

【0002】[0002]

【産業上の利用分野】この発明は、バックライト付の液
晶表示装置を持つ、内蔵バッテリで駆動可能なコンピュ
ータ装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer device having a liquid crystal display device with a backlight and which can be driven by a built-in battery.

【0003】[0003]

【従来の技術】ラップトップコンピュータ、ワークステ
ーション、及びワードプロセッサ等のコンピュータ装置
では、反射型液晶などの自己発光しない種類の画面表示
装置を除き、ディスプレイの表示輝度は、使用者が外部
環境の明るさに合わせ、輝度の手動調整を行っていた。
また、装置本体に内蔵するバッテリによる駆動可能なコ
ンピュータ装置に於いて、バッテリによる駆動時間は、
FDD/HDDなどの外部記憶装置の使用頻度、LCD
バックライトの輝度等の入出力、及びCPU周辺回路の
電力消費量に依存する。このため、これらの電力消費量
が増加すれば必然的にバッテリ駆動時間も減少するが、
これらはユーザのコントロールの手が届きにくい部分で
あった。
2. Description of the Related Art In computer devices such as laptop computers, workstations, and word processors, except for screen display devices of the type that do not emit light, such as reflective liquid crystal, the display brightness of the display depends on the brightness of the external environment of the user. According to the above, the brightness was manually adjusted.
Also, in a computer device that can be driven by a battery built in the device body, the drive time by the battery is
Frequency of use of external storage device such as FDD / HDD, LCD
It depends on input / output such as the brightness of the backlight and the power consumption of the CPU peripheral circuit. Therefore, if these power consumptions increase, the battery drive time will inevitably decrease,
These were the parts where the user's control was difficult to reach.

【0004】[0004]

【発明が解決しようとする課題】上述した様に、従来の
バッテリ駆動によるコンピュータ装置では、システムの
駆動時間と電力消費量は相反する関係にあるが、両者の
関係は、駆動時間が電力消費量に一方的に依存するもの
となっていた。即ち、コンピュータ装置の駆動可能時間
も重要な利用技術の一つあるにも拘らず、ユースウェア
の向上が、ディスプレイの明るさなどの点に重きがおか
れていたため、使用者は常にバッテリ切れの可能性を考
えつつオペレーションを行なわなければならないといっ
た問題があった。
As described above, in the conventional computer device driven by a battery, the driving time of the system and the power consumption are in a contradictory relationship. However, the relationship between them is that the driving time consumes the power consumption. Was unilaterally dependent on. In other words, despite the fact that the drivable time of the computer device is one of the important utilization technologies, the improvement of the youth wear was emphasized on the brightness of the display, etc. There was a problem that the operation had to be performed while considering the possibility.

【0005】この発明は上記実情に鑑みてなされたもの
であり、駆動時間を優先に画面輝度を設定することによ
り駆動時間が電力消費量に一方的に依存することのない
バッテリ駆動のコンピュータ装置を提供することを目的
とする。
The present invention has been made in view of the above circumstances, and provides a battery-operated computer device in which the driving time is set unilaterally so that the driving time does not unilaterally depend on the power consumption. The purpose is to provide.

【0006】[0006]

【発明の構成】[Constitution of the invention]

【0007】[0007]

【課題を解決するための手段】本発明は、バックライト
付LCDを表示装置として持つバッテリ駆動可能なコン
ピュータ装置において、システムの駆動時間を任意に設
定できるように使用者に対し駆動時間設定を促し、これ
を入力する手段と、内蔵するバッテリの残存容量を検出
する手段と、時間経過をカウントするタイマと、表示装
置の消費電力とシステム全体の消費電力とから上記内蔵
バッテリによる残り駆動可能時間を判断する手段と、上
記入力された駆動時間から表示装置の消費電力量を決定
し制御する制御手段とを具備することを特徴とする。上
記制御手段は、定時間毎に発せられる割り込みの都度、
残駆動要求時間をカウントするステップと、残駆動要求
時間から残駆動可能時間を差し引き不足時間を算出する
ステップと、この不足時間に対応して現在供給している
バックライトに対する電流容量を調整するステップとか
ら成る。
SUMMARY OF THE INVENTION The present invention, in a battery-operable computer device having a backlit LCD as a display device, prompts the user to set the drive time so that the system drive time can be set arbitrarily. , The input means, the means for detecting the remaining capacity of the built-in battery, the timer for counting the elapsed time, the power consumption of the display device and the power consumption of the entire system, the remaining drive time by the built-in battery It is characterized by comprising a judging means and a control means for deciding and controlling the power consumption of the display device from the input drive time. The control means, each time an interrupt is issued at regular intervals,
A step of counting the remaining drive request time, a step of subtracting the remaining drive possible time from the remaining drive request time to calculate a shortage time, and a step of adjusting the current capacity for the backlight currently supplied corresponding to this shortage time It consists of and.

【0008】[0008]

【作用】バッテリ駆動可能なコンピュータ装置における
バッテリ駆動時間は、FDD/HDD等内蔵する外部記
憶装置の使用頻度、LCDバックライト等表示装置の輝
度、その他の入出力装置、及びCPU周辺回路の電力消
費量の関数になる。駆動時間を支配するこれらの要素の
うち、表示装置の輝度に関しては、コンピュータ装置本
体の動作に影響無く電力消費を調整することができる。
そこで、内蔵するバッテリの残存容量を検出し、タイマ
によって時間経過をカウントする。そして、表示装置の
消費電力とコンピュータ装置全体の消費電力とから内蔵
バッテリによる残り駆動可能時間を判断し、使用者がコ
ンピュータ装置の駆動時間を任意に設定することによ
り、駆動時間から表示装置の表示装置の消費電力を決定
し、制御する構成とした。このことにより、駆動時間が
電力消費量に一方的に依存することのない、駆動可能時
間を主、画面表示装置の輝度など一部の電力消費量を従
としてコンピュータ装置を実現することができる。
In the battery-powered computer device, the battery drive time is the frequency of use of the external storage device such as the FDD / HDD, the brightness of the display device such as the LCD backlight, other input / output devices, and the power consumption of the CPU peripheral circuit. It becomes a function of quantity. Among these factors that control the driving time, with respect to the brightness of the display device, the power consumption can be adjusted without affecting the operation of the computer device body.
Therefore, the remaining capacity of the built-in battery is detected, and the elapsed time is counted by the timer. Then, the remaining driveable time by the built-in battery is determined from the power consumption of the display device and the power consumption of the entire computer device, and the user arbitrarily sets the drive time of the computer device to display the display time of the display device from the drive time. The power consumption of the device is determined and controlled. As a result, it is possible to realize a computer device in which the drive time does not unilaterally depend on the power consumption and the drivable time is mainly used and a part of the power consumption such as the brightness of the screen display device is used as the slave.

【0009】上記の構成によれば、コンピュータ装置の
駆動時間の設定を行ない、画面表示装置の輝度を自動設
定することにより、制御可能範囲内での、希望する時間
だけの動作を保証することができる。特に、AC電源の
ない場所で使用する機会の多い、可搬型のパーソナルコ
ンピュータ装置等に於いて得られる効果は大きい。
According to the above arrangement, the driving time of the computer device is set and the brightness of the screen display device is automatically set, so that the operation for the desired time within the controllable range can be guaranteed. it can. In particular, the effect obtained in a portable personal computer device or the like, which is often used in a place without an AC power source, is great.

【0010】[0010]

【実施例】図1は本発明の実施例を示すブロック図であ
る。
1 is a block diagram showing an embodiment of the present invention.

【0011】図において、符号1は初期値パラメータ
(Torg)であり、システムの駆動時間を規定する。符号
2はダウンカウンタであり、タイマ11の一定割り込み
間隔(Δt)毎にシステムの残り駆動要求時間(Tremai
n)を制御回路6に与える。符号3はバッテリ残量パラ
メータ(PBatt)であり、本体に内蔵するバッテリ12
の残容量をパラメータとして制御回路6に渡す。符号4
はバックライト付表示装置13の電力パラメータ(Pdi
sp)であり、表示装置のバックライトの消費電力値上限
を規定する。符号5はシステムの消費電力パラメータ
(Pother )であり、表示装置以外のシステムの消費電
力をパラメータとして制御回路6に渡す。符号6はマイ
クロコンピュータを含むシステムの制御回路(CON
T)であり、上述したパラメータ2,3,4,5に基づ
いて決定した、適当な電力を表示装置13のバックライ
トに供給する。また、それをパラメータとして電力パラ
メータ(Pdisp)4にフィードバックする。
In the figure, reference numeral 1 is an initial value parameter (Torg), which defines the drive time of the system. Reference numeral 2 is a down counter, and the remaining drive request time (Tremai) of the system is set at every constant interrupt interval (Δt) of the timer 11.
n) is given to the control circuit 6. Reference numeral 3 is a battery remaining amount parameter (PBatt), which is the battery 12 built in the main body.
The remaining capacity of is passed to the control circuit 6 as a parameter. Code 4
Is a power parameter (Pdi
sp), which specifies the upper limit of power consumption of the backlight of the display device. Reference numeral 5 is a power consumption parameter (Pother) of the system, and the power consumption of the system other than the display device is passed to the control circuit 6 as a parameter. Reference numeral 6 is a control circuit (CON of a system including a microcomputer.
T), and the appropriate power determined based on the parameters 2, 3, 4, and 5 described above is supplied to the backlight of the display device 13. Further, it is fed back to the power parameter (Pdisp) 4 as a parameter.

【0012】図2は図1に示す制御回路の処理フローを
示す図である。具体的には内蔵するマイクロコンピュー
タにプログラムされる内容である。図において、符号a
は残り駆動要求時間(Tremain )をカウントするステッ
プであり、タイマ11の割込み間隔(Δt)毎の割込み
発生の度に、ダウンカウンタ2でカウントダウンする。
符号bは駆動時間不足分(TLack)を算出するステップ
であり、残り駆動要求時間(Tremain )から、残り駆動
可能時間(PBatt/I)を引き、不足分の時間(TLac
k)を算出する。符号cは、バックライト供給電流容量
(Pdisp)を算出するステップであり、現在供給してい
るバックライトへの電力容量を調整する。調整量をΔP
とすれば、ΔPは、図中I・TLackで表現される。
FIG. 2 is a diagram showing a processing flow of the control circuit shown in FIG. Specifically, the contents are programmed in the built-in microcomputer. In the figure, reference numeral a
Is a step of counting the remaining drive request time (Tremain), and the down counter 2 counts down each time an interrupt occurs at each interrupt interval (Δt) of the timer 11.
Reference numeral b is a step for calculating the drive time shortage (TLack), and subtracts the remaining driveable time (PBatt / I) from the remaining drive request time (Tremain) to obtain the shortage time (TLac).
k) is calculated. Reference sign c is a step of calculating the backlight supply current capacity (Pdisp), and adjusts the power capacity to the backlight currently being supplied. Adjustment amount is ΔP
Then, ΔP is represented by I · TLack in the figure.

【0013】以下、本発明実施例の動作について詳細に
説明する。
The operation of the embodiment of the present invention will be described in detail below.

【0014】図1の構成を持つコンピュータ装置の使用
者は、必要に応じて先ず駆動時間の初期設定を行う。シ
ステムは、バッテリ容量の初期値、表示装置の消費電
力、その他のシステムの消費電力とから、設定された駆
動時間が制御可能範囲内であれば、その初期値をパラメ
ータ(Torg )として記憶しておく。バッテリ残量はパ
ラメータ(PBatt)として制御回路6に引き渡される。
表示装置13のバックライトで消費される電力はパラメ
ータ(Pdisp)として、制御回路6に引き渡される。シ
ステムの、表示装置13のバックライト以外で消費され
る電力はパラメータ(Pother )として制御回路6に引
き渡される。制御回路6は上述したようにマイクロコン
ピュータを含み、その処理概要は図2にフローチャート
として示されている。
The user of the computer device having the configuration shown in FIG. 1 first initializes the drive time if necessary. The system stores the initial value of the battery capacity, the power consumption of the display device, and the power consumption of other systems as the parameter (Torg) if the set driving time is within the controllable range. deep. The remaining battery level is passed to the control circuit 6 as a parameter (PBatt).
The power consumed by the backlight of the display device 13 is passed to the control circuit 6 as a parameter (Pdisp). The power consumed by the system other than the backlight of the display device 13 is transferred to the control circuit 6 as a parameter (Pother). The control circuit 6 includes the microcomputer as described above, and its processing outline is shown as a flowchart in FIG.

【0015】システムは、タイマ割り込みにより、一定
時間Δt毎に制御パラメータの調節を行う。FDD等、
バッテリの駆動時間を支配する要因をもつパラメータ
(Pother )の変動により、Δtの間に、残り駆動可能
時間(PBatt/I)と、残り駆動要求時間(Tremain )
は差異が生ずる。この駆動時間不足分を(TLack)とす
る。バックライトへの供給電力の調整分をΔPとすれ
ば、これは(I×TLack)として表現できるから、これ
を(Pdisp)から差し引き、新しいバックライトへの供
給電流容量パラメータとしてフィードバックする。
The system adjusts the control parameter at regular time intervals Δt by a timer interrupt. FDD, etc.
Due to the fluctuation of the parameter (Pother) that has a factor that controls the battery drive time, the remaining drive available time (PBatt / I) and the remaining drive request time (Tremain) during Δt
Makes a difference. This driving time shortage is defined as (TLack). If the adjusted amount of the power supplied to the backlight is ΔP, this can be expressed as (I × TLack), and this is subtracted from (Pdisp) and fed back as a current capacity parameter for the new backlight.

【0016】上述した本発明をラップトップコンピュー
タ等バッテリ駆動機器に組み込めば、バッテリ使用時の
動作を保証でき操作性が向上する。
When the above-described present invention is incorporated into a battery-operated device such as a laptop computer, the operation when using the battery can be guaranteed and the operability is improved.

【0017】[0017]

【発明の効果】以上説明のように本発明によれば、コン
ピュータ装置の駆動時間の設定を行い、画面表示装置の
輝度を自動設定することにより、制御可能範囲内での希
望する時間だけの動作を保証することができる。本発明
は、特に、AC電源のない場所で使用する機会の多い、
可搬型のパーソナルコンピュータ装置等の小型電子機器
において大きな効果が期待できる。
As described above, according to the present invention, the driving time of the computer device is set, and the brightness of the screen display device is automatically set, so that the operation is performed for a desired time within the controllable range. Can be guaranteed. The present invention is particularly often used in places without AC power,
A great effect can be expected in a small electronic device such as a portable personal computer device.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例を示すブロック図。FIG. 1 is a block diagram showing an embodiment of the present invention.

【図2】図1に示す制御回路の動作フローを示すフロー
チャート。
2 is a flowchart showing an operation flow of the control circuit shown in FIG.

【符号の説明】[Explanation of symbols]

1…初期値、2…ダウンカウンタ、3…バッテリ残量パ
ラメータ、4…表示装置の電力パラメータ、5…システ
ムの消費電力パラメータ、6…制御回路、11…タイ
マ、12…バッテリ、13…バックライト付表示装置
(バックライト付ディスプレイ)。
1 ... Initial value, 2 ... Down counter, 3 ... Battery level parameter, 4 ... Display power parameter, 5 ... System power consumption parameter, 6 ... Control circuit, 11 ... Timer, 12 ... Battery, 13 ... Backlight Display device (backlit display).

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 G09G 3/18 7926−5G ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location G09G 3/18 7926-5G

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 バックライト付液晶表示装置を持つ、内
蔵バッテリで駆動可能なコンピュータシステムにおい
て、システムの駆動時間を任意に設定できるように使用
者に対し駆動時間の設定を促し、その設定された時間を
入力する手段と、上記内蔵バッテリの残存容量を検出す
る手段と、システム動作時間経過をカウントするタイマ
と、上記表示装置の消費電力とシステム全体の消費電力
とから上記内蔵バッテリによる残り駆動可能時間を判断
する手段と、上記設定された駆動時間から表示装置の消
費電力量を決定し表示装置を制御する制御手段とを具備
することを特徴とするコンピュータ装置。
1. In a computer system having a liquid crystal display device with a back light, which can be driven by a built-in battery, the user is prompted to set the drive time so that the drive time of the system can be arbitrarily set, and the set time is set. A means for inputting time, a means for detecting the remaining capacity of the built-in battery, a timer for counting the elapsed system operating time, and a remaining drive by the built-in battery based on the power consumption of the display device and the power consumption of the entire system A computer apparatus comprising: a unit that determines time, and a control unit that determines the power consumption of the display device based on the set driving time and controls the display device.
【請求項2】 上記制御手段は、定時間毎に発せられる
割り込みの都度、残駆動要求時間をカウントするステッ
プと、残駆動要求時間から残駆動可能時間を差し引き不
足時間を算出するステップと、この不足時間に対応して
現在供給しているバックライトに対する電流容量を調整
する処理手段とを具備することを特徴とする請求項1記
載のコンピュータ装置。
2. The control means counts the remaining drive request time each time an interrupt is issued at regular time intervals, and subtracts the remaining drive available time from the remaining drive request time to calculate an insufficient time. 2. The computer apparatus according to claim 1, further comprising a processing unit that adjusts a current capacity for a backlight that is currently being supplied in response to a shortage time.
JP3234687A 1991-09-13 1991-09-13 Computer equipment Expired - Fee Related JP2983349B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3234687A JP2983349B2 (en) 1991-09-13 1991-09-13 Computer equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3234687A JP2983349B2 (en) 1991-09-13 1991-09-13 Computer equipment

Publications (2)

Publication Number Publication Date
JPH0594240A true JPH0594240A (en) 1993-04-16
JP2983349B2 JP2983349B2 (en) 1999-11-29

Family

ID=16974861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3234687A Expired - Fee Related JP2983349B2 (en) 1991-09-13 1991-09-13 Computer equipment

Country Status (1)

Country Link
JP (1) JP2983349B2 (en)

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JP2008250241A (en) * 2007-03-30 2008-10-16 Toshiba Corp Video display device
WO2012035809A1 (en) * 2010-09-15 2012-03-22 日本電気株式会社 Portable terminal, method for controlling same, and program

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KR100678968B1 (en) * 2006-02-10 2007-02-06 삼성전자주식회사 Apparatus and method for displaying graphic object requiring minimum power

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008250241A (en) * 2007-03-30 2008-10-16 Toshiba Corp Video display device
WO2012035809A1 (en) * 2010-09-15 2012-03-22 日本電気株式会社 Portable terminal, method for controlling same, and program
JP2012065109A (en) * 2010-09-15 2012-03-29 Nec Corp Portable terminal, control method thereof, and program
CN103081003A (en) * 2010-09-15 2013-05-01 日本电气株式会社 Portable terminal, method for controlling same, and program
US20130181885A1 (en) * 2010-09-15 2013-07-18 Nec Corporation Portable terminal, a control method and a program

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