JPH05303455A - Computer with backlight liquid crystal display part - Google Patents
Computer with backlight liquid crystal display partInfo
- Publication number
- JPH05303455A JPH05303455A JP4081300A JP8130092A JPH05303455A JP H05303455 A JPH05303455 A JP H05303455A JP 4081300 A JP4081300 A JP 4081300A JP 8130092 A JP8130092 A JP 8130092A JP H05303455 A JPH05303455 A JP H05303455A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- liquid crystal
- crystal display
- backlight
- measuring element
- 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.)
- Withdrawn
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000013459 approach Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Input From Keyboards Or The Like (AREA)
- Liquid Crystal Display Device Control (AREA)
- Power Sources (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はバックライト液晶表示部
付きコンピュータのバックライトへの電源制御を改良し
たバックライト液晶表示部付きコンピュータに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer with a backlit liquid crystal display unit in which power control to the backlight of a computer with a backlit liquid crystal display unit is improved.
【０００２】[0002]
【従来の技術】従来、この主のバックライト液晶表示部
付きコンピュータは、電源を入れるとバックライト制御
部に電源が供給されて、液晶表示装置に対して常時電源
を供給して一定の光量でバックライトを点灯させてい
た。2. Description of the Related Art Conventionally, this main computer with a backlit liquid crystal display unit is supplied with power to a backlight control unit when the power is turned on so that the liquid crystal display device is always supplied with power and a constant light amount. The backlight was on.
【０００３】[0003]
【発明が解決しようとする課題】上述した従来のバック
ライト液晶表示部付きコンピュータの液晶表示装置は、
コンピュータの電源を入れるとバックライト制御装置に
一定の電源が供給されるので、利用者がコンピュータを
操作していないにもかからわず、バックライトを点灯さ
せるために常に電源を消費する欠点があった。The above-mentioned conventional liquid crystal display device for a computer with a backlight liquid crystal display unit,
Since a certain amount of power is supplied to the backlight control device when the computer is turned on, there is a drawback that power is constantly consumed to turn on the backlight even when the user is not operating the computer. there were.
【０００４】[0004]
【課題を解決するための手段】本発明のバックライト表
示部付きコンピュータはキーボードと、バックライト液
晶表示部と、このバックライト液晶表示部に供給する電
源制御部とを有するバックライト液晶表示部付きコンピ
ュータにおいて、人間の手等の発熱体が接近したことを
感知するための測温素子を前記キーボードのキーユニッ
トに付加し、該測温素子によって一定以上の温度を検出
すると前記電源制御部を制御してバックライト液晶表示
部に供給する電源の制御を行う。A computer with a backlight liquid crystal display unit according to the present invention is provided with a backlight liquid crystal display unit having a keyboard, a backlight liquid crystal display unit, and a power supply control unit supplying the backlight liquid crystal display unit. In a computer, a temperature measuring element for detecting the approach of a heating element such as a human hand is added to the key unit of the keyboard, and when the temperature measuring element detects a temperature above a certain level, the power control unit is controlled. Then, the power supply to the backlight liquid crystal display unit is controlled.
【０００５】[0005]
【実施例】次に、本発明について図面を参照して説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.
【０００６】図１は本発明の一実施例のブロック図、図
２（ａ），（ｂ）は測温素子付きキーユニットの側面図
（ａ），平面図（ｂ）、図３は本実施例の応用例を示す
斜視図、ボードに設置された測温素子が測定した温度と
時間の変化を示す説明図である。図１において、測温素
子付きキーボード１０１は、人間の手等の発熱体が接近
したことを感知するために温度の変化を常に監視してい
る。測温素子付きキーボード１０１がある一定時間の間
で、定められた温度以下を感知すると、制御部１０５は
液晶表示装置１０２用バックライトのバックライト制御
装置１０３への電源の供給をしないように電源装置１０
４を制御する。測温素子付きキーボード１０１が定めら
れた温度より高い温度を感知すると、制御部１０５はバ
ックライト制御装置１０３への電源を即時に供給するよ
うに電源装置１０４を制御する。測温素子付きキーボー
ド１０１が定められた温度より高い温度を感知すると、
制御部１０５はバックライト制御装置１０３への電源を
即時に供給するように電源装置１０４を制御する。図１
の測温素子付きキーボード１０１は多数の測温素子付き
キーユニットを配置している。この測温素子付きキーユ
ニットは図２（ａ），（ｂ）に示すように打けん用のキ
ー２０２の上表面に測温素子２０１を備えている。FIG. 1 is a block diagram of an embodiment of the present invention, FIGS. 2 (a) and 2 (b) are side views (a) and plan views (b) of a key unit with a temperature measuring element, and FIG. It is a perspective view showing an example of application of an example, and an explanatory view showing change of temperature and time which a temperature measuring element installed in a board measured. In FIG. 1, a keyboard 101 with a temperature measuring element constantly monitors a change in temperature in order to detect that a heating element such as a human hand approaches. When the keyboard 101 with a temperature measuring element senses a temperature equal to or lower than a predetermined temperature for a certain period of time, the control unit 105 does not supply power to the backlight control device 103 of the backlight for the liquid crystal display device 102. Device 10
Control 4 When the temperature sensing element-equipped keyboard 101 senses a temperature higher than a predetermined temperature, the control unit 105 controls the power supply device 104 to immediately supply power to the backlight control device 103. When the keyboard 101 with a temperature measuring element senses a temperature higher than a predetermined temperature,
The control unit 105 controls the power supply device 104 to immediately supply power to the backlight control device 103. Figure 1
The keyboard 101 with a temperature measuring element has a large number of key units with a temperature measuring element. As shown in FIGS. 2 (a) and 2 (b), this key unit with a temperature measuring element is equipped with a temperature measuring element 201 on the upper surface of a key 202 for hammering.
【０００７】次に図４を用いて制御部１０５を含む動作
を説明する。制御部１０５は、測温素子付きキーボード
１０１が図４の定められた温度ｔ°Ｃ以下を感知してい
る状態がある一定時間Ｔ（図４のＥ−Ｆ）の間連続した
時に、バックライト制御装置１０３に電源を供給しない
ように電源装置１０４を制御し、バックライトを消灯さ
せる。測温素子付きキーボード１０１が定められた温度
ｔ°Ｃより高い温度を感知した時に、バックライト制御
装置１０３に電源を供給するように電源装置１０４を制
御しバックライトを点灯させる。Next, the operation including the control unit 105 will be described with reference to FIG. When the keyboard 101 with the temperature measuring element senses a temperature equal to or lower than the predetermined temperature t ° C in FIG. 4 for a certain period of time T (EF in FIG. 4), the control unit 105 backlights the backlight. The power supply device 104 is controlled so that power is not supplied to the control device 103, and the backlight is turned off. When the temperature sensing element-equipped keyboard 101 senses a temperature higher than a predetermined temperature t ° C, the power supply device 104 is controlled to supply power to the backlight control device 103 to turn on the backlight.
【０００８】図４のＡ−Ｂ点間は、所定温度ｔ°Ｃ以下
であるが一定時間Ｔを経過する前の時間Ｂ点で高い温度
を感知するので、バックライト制御装置１０３は電源を
供給し続ける。Ｃ−Ｄ点間でも同様である。Ｂ−Ｃ点
間、Ｄ−Ｅ点間は、定められた温度より高い温度を感知
しているので、バックライト制御装置１０３に電源を供
給する。ここでＥ−Ｆ点間は、時間Ｅ点で予め定められ
た温度以下を感知するが予め定められた温度以下の状態
がある一定時間Ｔを経過していないので、バックライト
制御装置１０３に電源を供給する。このように時間Ａ点
から時間Ｆ点は操作者がバックライト付き液晶表示装置
１０２を使用する可能性が高いので、バックライト制御
装置１０３に電源を供給される。一定時間Ｔを経過した
時間Ｆ点においてバックライト制御装置１０３に電源を
供給されなくなる。時間Ｇ点で再び高い温度を感知する
ので、即時にバックライト制御装置１０３に電源を供給
し始める。このように時間Ｆ点からＧ点は操作者がバッ
クライト付き液晶表示装置１０２を使用する可能性が低
いので、バックライト制御装置１０３に電源を供給され
ず、バックライトの消費電力を節約する。この所定温度
ｔ°Ｃによって操作者が液晶表示装置１０２を使用する
可能性が有るかどうかを判断しているが、操作者がキー
を入力する場所の温度等によって設定値を変更すること
も可能である。図３は本実施例の応用例で、キーボード
２０４上でキーボード２０４上でキーが配列していない
周辺に測温素子付き周辺部２０３を設置した例を示して
いる。Between points A and B in FIG. 4, a high temperature is sensed at time B, which is below a predetermined temperature t ° C but before the elapse of a certain time T, so the backlight control device 103 supplies power. Keep doing. The same applies between points C and D. Since a temperature higher than a predetermined temperature is sensed between points B and C and between points D and E, power is supplied to the backlight control device 103. Here, between the points E and F, the temperature below the predetermined temperature at the point E is sensed, but the temperature below the predetermined temperature does not elapse a certain time T, so the backlight control device 103 is powered on. To supply. As described above, since there is a high possibility that the operator will use the liquid crystal display device with a backlight 102 from the time point A to the time point F, power is supplied to the backlight control device 103. At the point of time F when a certain time T has passed, the backlight control device 103 is not supplied with power. Since the high temperature is sensed again at time point G, power is immediately supplied to the backlight control device 103. As described above, since it is unlikely that the operator uses the backlight-equipped liquid crystal display device 102 from the point F to the point G, power is not supplied to the backlight control device 103, and power consumption of the backlight is saved. Although the operator determines whether or not the liquid crystal display device 102 may be used based on the predetermined temperature t ° C, it is possible to change the set value depending on the temperature of the place where the operator inputs a key or the like. Is. FIG. 3 is an application example of the present embodiment, and shows an example in which a peripheral portion 203 with a temperature measuring element is installed on the keyboard 204 in the periphery where no keys are arranged on the keyboard 204.
【０００９】[0009]
【発明の効果】以上説明したように本発明は、人間の手
等の発熱体が接近したことを感知するためにキーボード
に設置された測温素子と、バックライト制御装置とを備
えてバックライトヘ供給する電源を制御することによ
り、消費電力を節約できる効果がある。As described above, according to the present invention, the backlight is provided with the temperature measuring element installed on the keyboard for detecting the approach of the heating element such as human hand, and the backlight control device. (F) By controlling the power supply to be supplied, there is an effect that power consumption can be saved.
【図１】本発明の一実施例のブロック図である。FIG. 1 is a block diagram of an embodiment of the present invention.
【図２】本実施例の要部であるキーユニットの側面図
（ａ）、平面図（ｂ）である。FIG. 2 is a side view (a) and a plan view (b) of a key unit that is an essential part of this embodiment.
【図３】本実施例の応用例の斜視図である。FIG. 3 is a perspective view of an application example of the present embodiment.
【図４】本実施例の動作説明図である。FIG. 4 is an operation explanatory diagram of the present embodiment.
１０１ キーボードに設置された測温素子付きキーボ
ード １０２ 液晶表示装置 １０３ バックライト制御装置 １０４ 電源装置 １０５ 制御部 ２０１ 測温素子 ２０２ キー ２０３ キーボード ２０４ 測温素子付き周辺部101 Keyboard with temperature measuring element installed on keyboard 102 Liquid crystal display device 103 Backlight control device 104 Power supply device 105 Control unit 201 Temperature measuring element 202 Key 203 Keyboard 204 Peripheral part with temperature measuring element
Claims (2)
と、このバックライト液晶表示部に供給する電源制御部
とを有するバックライト液晶表示部付きコンピュータに
おいて、人間の手等の発熱体が接近したことを感知する
ための測温素子を前記キーボードのキーユニットに付加
し、該測温素子によって一定以上の温度を検出すると前
記電源制御部を制御してバックライト液晶表示部に供給
する電源の制御を行うことを特徴とするバックライト液
晶表示部付きコンピュータ。1. In a computer with a backlight liquid crystal display unit having a keyboard, a backlight liquid crystal display unit, and a power supply control unit for supplying power to the backlight liquid crystal display unit, a heating element such as a human hand has approached. A temperature-measuring element for sensing the temperature is added to the key unit of the keyboard, and when the temperature-measuring element detects a temperature above a certain level, the power source control unit is controlled to control the power source supplied to the backlight liquid crystal display unit. A computer with a backlit liquid crystal display, which is characterized by being performed.
段階のしきい値を設けて段階的に電源の制御を行うとと
もに、前記測温素子が検出した温度レベルが所定時間し
きい値以下である場合に、電源供給を停止することを特
徴とする請求項１記載のバックライト液晶表示部付きコ
ンピュータ。2. The temperature level detected by the temperature measuring element is controlled in a stepwise manner by providing threshold values in a plurality of stages, and the temperature level detected by the temperature measuring element is below a threshold value for a predetermined time. The computer with a backlit liquid crystal display unit according to claim 1, wherein the power supply is stopped in the case of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4081300A JPH05303455A (en) | 1992-04-03 | 1992-04-03 | Computer with backlight liquid crystal display part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4081300A JPH05303455A (en) | 1992-04-03 | 1992-04-03 | Computer with backlight liquid crystal display part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05303455A true JPH05303455A (en) | 1993-11-16 |
Family
ID=13742547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4081300A Withdrawn JPH05303455A (en) | 1992-04-03 | 1992-04-03 | Computer with backlight liquid crystal display part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05303455A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0701196A3 (en) * | 1994-09-07 | 1996-07-31 | Compaq Computer Corp | Reduction of power consumption in a personal computer |
| FR2745925A1 (en) * | 1996-03-08 | 1997-09-12 | Lg Electronics Inc | MONITOR POWER CONTROL CIRCUIT FOR A COMPUTER SYSTEM |
-
1992
- 1992-04-03 JP JP4081300A patent/JPH05303455A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0701196A3 (en) * | 1994-09-07 | 1996-07-31 | Compaq Computer Corp | Reduction of power consumption in a personal computer |
| US5666541A (en) * | 1994-09-07 | 1997-09-09 | Compaq Computer Corporation | Reducing power usage in a personal computer |
| US5669004A (en) * | 1994-09-07 | 1997-09-16 | Compaq Computer Corporation | Reducing power usage in a personal computer |
| US5675810A (en) * | 1994-09-07 | 1997-10-07 | Compaq Computer Corporation | Reducing power usage in a personal computer |
| FR2745925A1 (en) * | 1996-03-08 | 1997-09-12 | Lg Electronics Inc | MONITOR POWER CONTROL CIRCUIT FOR A COMPUTER SYSTEM |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990608 |