JP3623752B2 - Folding mobile phone - Google Patents
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- JP3623752B2 JP3623752B2 JP2001124191A JP2001124191A JP3623752B2 JP 3623752 B2 JP3623752 B2 JP 3623752B2 JP 2001124191 A JP2001124191 A JP 2001124191A JP 2001124191 A JP2001124191 A JP 2001124191A JP 3623752 B2 JP3623752 B2 JP 3623752B2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Description
【０００１】
【発明の属する技術分野】
本発明は、背面ＬＣＤを有する折り畳み型携帯電話機に関し、特に、電力消費量を抑える折り畳み型携帯電話機に関する。
【０００２】
【従来の技術】
背面ＬＣＤを備える折り畳み型携帯電話機は、筐体の手元側である背面に表示部であるＬＣＤを備えることで、筐体を開かずに簡単に情報を確認することができ、操作性が向上した。
【０００３】
【発明が解決しようとする課題】
しかし、その反面、ＬＣＤが会合面側とその背面側に２個備わることとなり、両ＬＣＤに電力が供給されることで、電力の消費量が増加し、待ち受け時間や通話時間を短縮してしまうという欠点があった。また、背面ＬＣＤの電源は常時入っている状態にあった。
【０００４】
本発明の目的は、電力消費量を抑え、待ち受け時間、通話時間の短縮を防ぐことができる背面ＬＣＤ付き折り畳み型携帯電話機を提供することである。
【０００５】
【課題を解決するための手段】
本発明の第１の視点においては、表示面が筐体の背面側に配される背面ＬＣＤと、表示面が筐体の会合面側に配されるメインＬＣＤと、を備える折り畳み型携帯電話機において、前記筐体の開閉状態を検出する開閉検出手段と、前記開閉検出手段から発信された信号を受けることにより前記背面ＬＣＤ及び前記メインＬＣＤに供給する電源のスイッチングを自動制御する制御部と、前記折り畳み型携帯電話機の筐体における会合面以外の所定の位置に配されたスイッチボタンと、前記スイッチボタンの押下を検出する押下検出手段と、を備え、前記制御部は、メイン電源を入れてから所定時間前記背面ＬＣＤ及び前記メインＬＣＤに電源を供給するように制御するとともに、閉状態を検出している前記開閉検出手段からの信号を受けることにより前記背面ＬＣＤ及び前記メインＬＣＤに電源を供給しないように制御し、開状態を検出している前記開閉検出手段からの信号を受けることにより前記背面ＬＣＤに電源を供給しないで前記メインＬＣＤに電源を供給するように制御し、閉状態を検出している前記開閉検出手段からの信号を受け、かつ、押下を検出した前記押下検出手段からの信号を受けることにより前記折り畳み型携帯電話機のユーザが設定した一定時間だけ前記背面ＬＣＤのみに電源を供給するように制御することを特徴とする。
【０００８】
また、前記折り畳み型携帯電話機において、前記制御部は、閉状態を検出している前記開閉検出手段からの信号のみを受けることにより前記背面ＬＣＤ及び前記メインＬＣＤに電源を供給しないように制御するとともに、開状態を検出している前記開閉検出手段からの信号のみを受けることにより前記背面ＬＣＤに電源を供給しないで前記メインＬＣＤに電源を供給するように制御することが好ましい。
【００１３】
【発明の実施の形態】
表示面が筐体の背面側に配される背面ＬＣＤと、表示面が筐体の会合面側に配されるメインＬＣＤと、を備える折り畳み型携帯電話機において、前記筐体の開閉状態を検出する開閉検出手段と、前記開閉検出手段から発信された信号を受けることにより前記背面ＬＣＤ及び前記メインＬＣＤに供給する電源のスイッチングを自動制御する制御部と、前記折り畳み型携帯電話機の筐体における会合面以外の所定の位置に配されたスイッチボタンと、前記スイッチボタンの押下を検出する押下検出手段と、を備え、前記制御部は、メイン電源を入れてから所定時間前記背面ＬＣＤ及び前記メインＬＣＤに電源を供給するように制御するとともに、閉状態を検出している前記開閉検出手段からの信号を受けることにより前記背面ＬＣＤ及び前記メインＬＣＤに電源を供給しないように制御し、開状態を検出している前記開閉検出手段からの信号を受けることにより前記背面ＬＣＤに電源を供給しないで前記メインＬＣＤに電源を供給するように制御し、閉状態を検出している前記開閉検出手段からの信号を受け、かつ、押下を検出した前記押下検出手段からの信号を受けることにより前記折り畳み型携帯電話機のユーザが設定した一定時間だけ前記背面ＬＣＤのみに電源を供給するように制御することにより、表示が不要なときの表示部の電源を切ることができ、電力消費量を抑えることができる。
【００１４】
【実施例】
本発明の実施例１を図面を用いて説明する。図１は、本発明の実施例１に係る折り畳み型携帯電話機の閉状態における第１の筐体の背面を模式的に示した平面図である。図２は、本発明の実施例１に係る折り畳み型携帯電話機の閉状態における構成を模式的に示した長軸方向の断面図である。この折り畳み型携帯電話機１は、第１の筐体２０と、第２の筐体２１と、を有する。
【００１５】
第１の筐体２０は、第２の筐体２１とヒンジ部６を介して回転可能に連結し、上端面には無線基地局との間で無線信号を送受信するＡＮＴ２を有し、背面の中央近傍には背面ＬＣＤ３の表示窓を有し、筐体内部の正面側の上部付近に音声情報を出力するマイク５が実装されており、筐体内部の正面側中央近傍にメール等の情報を表示するメインＬＣＤ８が実装されており、筐体内部の背面側中央近傍に時計等の簡単な情報を表示する背面ＬＣＤ３が実装されている。背面ＬＣＤ３の配置は、閉じた状態でも外部から見えるような構成となっている。
【００１６】
第２の筐体２１は、第１の筐体２０とヒンジ部６を介して回転可能に連結し、側端面には背面ＬＣＤ３の電源スイッチとなるサイドボタン１４が突出し、正面側中央近傍には情報の入力部となるキー操作部７が実装されており、筐体内部の下部付近に音声情報の入力部となるレシーバ４が実装されている。
【００１７】
次に、実施例１に係る折り畳み型携帯電話機の背面ＬＣＤとメインＬＣＤの電源制御回路の構成について図面を用いて説明する。図３は、本発明の実施例１に係る折り畳み型携帯電話機における背面ＬＣＤとメインＬＣＤの電源制御回路の構成を模式的に示したブロック図である。
【００１８】
電源回路部１０は、バッテリからの電源を一定電圧で背面ＬＣＤ３とメインＬＣＤ８に供給する。背面ＬＣＤ３には、電源回路部１０からＳＷ１２を介して電源が供給される。メインＬＣＤ８には、電源回路部１０からＳＷ１３を介して電源が供給される。制御回路部９は、検出手段からの一定の状態信号１１を受けることによってＳＷ１２及びＳＷ１３のＯＮ／ＯＦＦのスイッチングを自動制御する。これにより、背面ＬＣＤ３とメインＬＣＤ８の電源がスイッチ制御される。検出信号１１とは、携帯電話機のある一定の状態を検出手段によって検出されたときに制御回路に伝えられる信号である。検出手段としては、筐体の開閉状態を検出する開閉検出手段１５、サイドボタンの押下を検出する押下検出手段１６、着信信号や通話信号を検出する着信・通話検出手段１７などである。
【００１９】
次に、実施例１に係る折り畳み型携帯電話機の動作について図面を用いて説明する。図４は、本発明の実施例１に係る折り畳み型携帯電話機の動作を模式的に示したフローチャートである。構成については図１〜３を参照されたい。
【００２０】
まず、折り畳み型携帯電話機にメイン電源を入れる（ステップＡ１）。次に、メイン電源が入ることにより、背面ＬＣＤ３、メインＬＣＤ８それぞれの電源が入り、背面ＬＣＤ３、メインＬＣＤ８それぞれに所定の表示が現れる（ステップＡ２）。
【００２１】
次に、筐体が閉じているか否かの確認を開閉検出手段１５で行う（ステップＡ３）。
【００２２】
開閉検出手段１５によって筐体が閉じていることが確認されれば（ステップＡ３の「ＹＥＳ」）、閉検出信号が開閉検出手段１５から制御回路部９に送られ、制御回路部９は背面ＬＣＤ３、メインＬＣＤ８を共に電源を切るようにＳＷ１２、ＳＷ１３を制御し、両ＬＣＤの表示を消す（ステップＡ６）。
【００２３】
一方、開閉検出手段１５によって筐体が閉じていることが検出されない、すなわち、筐体が開いていれば（ステップＡ３の「ＮＯ」）、開検出信号が開閉検出手段１５から制御回路部９に送られ、制御回路部９は背面ＬＣＤ３のみ電源を切るようにＳＷ１２を制御し、背面ＬＣＤ３の表示を消し、メインＬＣＤ８の電源は入れた状態にしておく（ステップＡ４）。そして、筐体が閉じたか否かの確認を開閉検出手段１５によって行う（ステップＡ５）。開閉検出手段１５によって筐体が閉じたことが検出されない、すなわち、筐体が開いていれば（ステップＡ５の「ＮＯ」）、開検出信号が開閉検出手段１５から制御回路部９に送られ、制御回路部９はステップＡ４の状態を維持する。一方、開閉検出手段１５によって筐体が閉じていることが検出されれば（ステップＡ５の「ＹＥＳ」）、閉検出信号が開閉検出手段１５から制御回路部９に送られ、制御回路部９は背面ＬＣＤ３、メインＬＣＤ８を共に電源を切るようにＳＷ１２、ＳＷ１３を制御し、両ＬＣＤの表示を消す（ステップＡ６）。
【００２４】
次に、サイドボタン１４の押下があったか否かの確認を押下検出手段１６で行う（ステップＡ７）。サイドボタンの押下がない場合（ステップＡ７の「ＮＯ」）は、ステップＡ３へ戻り、前記ステップのフローを繰り返す。一方、サイドボタンの押下があった場合（ステップＡ７の「ＹＥＳ」）は、押下検出信号が押下検出手段１６から制御回路部９に送られ、制御回路部９は背面ＬＣＤ３のみの電源を入れるようにＳＷ１２を制御し、背面ＬＣＤ３の表示を現し、指定時間（例えば、２０秒：ユーザが自由に時間設定できるものとする）経過後、制御回路部９は背面ＬＣＤ３の電源を切るようにＳＷ１２を制御し、背面ＬＣＤ３の電源を切り、背面ＬＣＤ３の表示を消す（ステップＡ８）。その後はＡ３へ戻り、前記説明のフローを繰り返す。
【００３８】
【発明の効果】
本発明によれば、必要に応じてＬＣＤの電源を自動的にＯＮ／ＯＦＦする機能を有しているため、電力消費量を軽減でき、待ち受け時間や通話時間の短縮を防止することができる。
【図面の簡単な説明】
【図１】本発明の実施例１に係る折り畳み型携帯電話機の閉状態における第１の筐体の背面を模式的に示した平面図である。
【図２】本発明の実施例１に係る折り畳み型携帯電話機の閉状態における構成を模式的に示した長軸方向の断面図である。
【図３】本発明の実施例１に係る折り畳み型携帯電話機における背面ＬＣＤとメインＬＣＤの電源制御回路の構成を模式的に示したブロック図である。
【図４】本発明の実施例１に係る折り畳み型携帯電話機の動作を模式的に示したフローチャートである。
【符号の説明】
１ 折り畳み型携帯電話機
２ ＡＮＴ
３ 背面ＬＣＤ
４ レシーバ
５ マイク
６ ヒンジ部
７ キー操作部
８ メインＬＣＤ
９ 制御回路部
１０ 電源回路部
１１ 状態信号入力
１２、１３ ＳＷ
１４ サイドボタン
１５ 開閉検出手段
１６ 押下検出手段
１７ 着信・通話検出手段
２０ 第１の筐体
２１ 第２の筐体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a foldable mobile phone having a back LCD, and more particularly to a foldable mobile phone that reduces power consumption.
[0002]
[Prior art]
A foldable mobile phone equipped with a back LCD has an LCD that is a display unit on the back, which is the hand side of the housing, so that information can be easily confirmed without opening the housing, improving operability. .
[0003]
[Problems to be solved by the invention]
However, on the other hand, two LCDs are provided on the meeting side and the back side, and power is supplied to both LCDs, which increases power consumption and shortens standby time and call time. There was a drawback. Further, the power supply of the rear LCD was always on.
[0004]
An object of the present invention is to provide a foldable mobile phone with a back LCD that can reduce power consumption and prevent shortening of standby time and call time.
[0005]
[Means for Solving the Problems]
In a first aspect of the present invention, in a foldable mobile phone comprising: a rear LCD whose display surface is disposed on the rear side of the housing; and a main LCD whose display surface is disposed on the meeting surface side of the housing. the opening and closing detection means for detecting the open or closed state of the housing, and a control unit for automatically controlling the switching of the power supplied to the rear LCD and the main LCD by receiving a signal transmitted from the opening detecting means, said A switch button disposed at a predetermined position other than the meeting surface in the case of the foldable mobile phone, and a pressing detection means for detecting pressing of the switch button, the control unit after turning on the main power Controlling to supply power to the rear LCD and the main LCD for a predetermined time and receiving a signal from the open / close detection means detecting a closed state By controlling the power supply to the rear LCD and the main LCD so that the power is not supplied to the rear LCD by receiving a signal from the open / close detection means that detects the open state, the power is supplied to the main LCD. And receiving the signal from the open / close detecting means that detects the closed state and receiving the signal from the press detecting means that has detected the press, the user of the folding cellular phone Control is performed so that power is supplied only to the rear LCD for a set fixed time .
[0008]
In the foldable mobile phone, the control unit controls not to supply power to the rear LCD and the main LCD by receiving only a signal from the open / close detection means that detects a closed state. It is preferable that control is performed so that power is supplied to the main LCD without supplying power to the rear LCD by receiving only a signal from the open / close detection means that detects the open state.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
An open / close state of the casing is detected in a foldable mobile phone including a rear LCD whose display surface is arranged on the rear side of the casing and a main LCD whose display plane is arranged on the meeting plane side of the casing. Opening / closing detection means, a control unit for automatically controlling switching of power supplied to the rear LCD and the main LCD by receiving a signal transmitted from the opening / closing detection means, and a meeting surface in the case of the folding cellular phone A switch button disposed at a predetermined position other than the switch button, and a pressing detection means for detecting pressing of the switch button, and the control unit applies a predetermined time to the rear LCD and the main LCD after a main power is turned on. Control is performed to supply power, and the rear LCD and the main body are received by receiving a signal from the open / close detection means that detects a closed state. Control not to supply power to the LCD, and control to supply power to the main LCD without supplying power to the rear LCD by receiving a signal from the open / close detection means detecting the open state. Receiving the signal from the open / close detection means detecting the closed state and receiving the signal from the press detection means detecting the press, the back surface for a predetermined time set by the user of the folding cellular phone By controlling so that power is supplied only to the LCD, the power of the display unit can be turned off when display is unnecessary, and the power consumption can be suppressed.
[0014]
【Example】
A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view schematically showing the back surface of the first housing in the closed state of the folding mobile phone according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view in the long axis direction schematically showing the configuration of the folding mobile phone according to the first embodiment of the present invention in the closed state. The foldable mobile phone 1 has a first housing 20 and a second housing 21.
[0015]
The first casing 20 is rotatably connected to the second casing 21 via the hinge portion 6, and has an ANT2 for transmitting and receiving radio signals to and from the radio base station on the upper end surface. There is a display window for the rear LCD 3 near the center, and a microphone 5 for outputting audio information is mounted near the upper part on the front side inside the housing. Information such as mail is displayed near the center on the front side inside the housing. A main LCD 8 for display is mounted, and a back LCD 3 for displaying simple information such as a clock is mounted in the vicinity of the center on the back side inside the housing. The rear LCD 3 is arranged so that it can be seen from the outside even when it is closed.
[0016]
The second casing 21 is rotatably connected to the first casing 20 via the hinge portion 6, and a side button 14 that serves as a power switch of the rear LCD 3 protrudes from the side end surface, and is located in the vicinity of the center on the front side. A key operation unit 7 serving as an information input unit is mounted, and a
[0017]
Next, the configuration of the power supply control circuit for the rear LCD and the main LCD of the foldable mobile phone according to the first embodiment will be described with reference to the drawings. FIG. 3 is a block diagram schematically showing the configuration of the power supply control circuit for the rear LCD and the main LCD in the folding cellular phone according to the first embodiment of the present invention.
[0018]
The power supply circuit unit 10 supplies power from the battery to the rear LCD 3 and the main LCD 8 at a constant voltage. Power is supplied to the rear LCD 3 from the power supply circuit unit 10 via the
[0019]
Next, the operation of the folding mobile phone according to the first embodiment will be described with reference to the drawings. FIG. 4 is a flowchart schematically showing the operation of the folding mobile phone according to the first embodiment of the present invention. Refer to FIGS. 1 to 3 for the configuration.
[0020]
First, the main power supply is turned on to the folding cellular phone (step A1). Next, when the main power is turned on, the rear LCD 3 and the main LCD 8 are turned on, and predetermined displays appear on the rear LCD 3 and the main LCD 8 (step A2).
[0021]
Next, whether the casing is closed is confirmed by the open / close detection means 15 (step A3).
[0022]
If it is confirmed by the opening / closing detection means 15 that the casing is closed (“YES” in step A3), a closing detection signal is sent from the opening / closing detection means 15 to the control circuit section 9, and the control circuit section 9 is connected to the rear LCD 3 Then, SW12 and SW13 are controlled so that both main LCDs 8 are turned off, and the display of both LCDs is turned off (step A6).
[0023]
On the other hand, if it is not detected by the open / close detection means 15 that the casing is closed, that is, if the casing is open (“NO” in step A3), an open detection signal is sent from the open / close detection means 15 to the control circuit unit 9. The control circuit unit 9 controls the
[0024]
Next, whether or not the side button 14 has been pressed is confirmed by the pressing detection means 16 (step A7). If the side button is not pressed (“NO” in step A7), the process returns to step A3 and the flow of the above steps is repeated. On the other hand, when the side button is pressed (“YES” in step A7), a press detection signal is sent from the press detection means 16 to the control circuit unit 9, and the control circuit unit 9 turns on only the rear LCD 3. SW12 is controlled to display the rear LCD 3, and after a specified time (for example, 20 seconds: the user can set the time freely), the control circuit unit 9 switches SW12 to turn off the rear LCD 3. Then, the power of the rear LCD 3 is turned off, and the display on the rear LCD 3 is turned off (step A8). Thereafter, the process returns to A3, and the above-described flow is repeated.
[0038]
【The invention's effect】
According to the present invention, since it has a function of automatically turning on / off the power supply of the LCD as necessary, it is possible to reduce the power consumption and prevent the standby time and the call time from being shortened.
[Brief description of the drawings]
FIG. 1 is a plan view schematically showing a back surface of a first housing in a closed state of a foldable mobile phone according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view in the long axis direction schematically showing a configuration in a closed state of the folding mobile phone according to the first embodiment of the present invention;
FIG. 3 is a block diagram schematically showing a configuration of a power supply control circuit for a rear LCD and a main LCD in the folding cellular phone according to the first embodiment of the present invention.
FIG. 4 is a flowchart schematically showing the operation of the folding mobile phone according to the first embodiment of the present invention.
[Explanation of symbols]
1 Folding
3 Rear LCD
4 Receiver 5 Microphone 6 Hinge part 7 Key operation part 8 Main LCD
9 Control circuit section 10 Power supply circuit section 11
14 Side button 15 Open / close detection means 16 Press detection means 17 Incoming / call detection means 20 First casing 21 Second casing
Claims (2)
前記筐体の開閉状態を検出する開閉検出手段と、
前記開閉検出手段から発信された信号を受けることにより前記背面ＬＣＤ及び前記メインＬＣＤに供給する電源のスイッチングを自動制御する制御部と、
前記折り畳み型携帯電話機の筐体における会合面以外の所定の位置に配されたスイッチボタンと、
前記スイッチボタンの押下を検出する押下検出手段と、
を備え、
前記制御部は、
メイン電源を入れてから所定時間前記背面ＬＣＤ及び前記メインＬＣＤに電源を供給するように制御するとともに、
閉状態を検出している前記開閉検出手段からの信号を受けることにより前記背面ＬＣＤ及び前記メインＬＣＤに電源を供給しないように制御し、
開状態を検出している前記開閉検出手段からの信号を受けることにより前記背面ＬＣＤに電源を供給しないで前記メインＬＣＤに電源を供給するように制御し、
閉状態を検出している前記開閉検出手段からの信号を受け、かつ、押下を検出した前記押下検出手段からの信号を受けることにより前記折り畳み型携帯電話機のユーザが設定した一定時間だけ前記背面ＬＣＤのみに電源を供給するように制御する、ことを特徴とする折り畳み型携帯電話機。 In a foldable mobile phone comprising a rear LCD whose display surface is arranged on the rear side of the housing and a main LCD whose display surface is arranged on the meeting surface side of the housing,
Open / close detecting means for detecting an open / closed state of the housing;
A control unit that automatically controls switching of power supplied to the rear LCD and the main LCD by receiving a signal transmitted from the open / close detection means ;
A switch button disposed at a predetermined position other than the meeting surface in the case of the folding cellular phone;
A pressing detection means for detecting pressing of the switch button;
With
The controller is
Control to supply power to the rear LCD and the main LCD for a predetermined time after turning on the main power,
Control so as not to supply power to the back LCD and the main LCD by receiving a signal from the open / close detection means that detects a closed state,
Control to supply power to the main LCD without supplying power to the rear LCD by receiving a signal from the open / close detection means that detects an open state,
The rear LCD receives a signal from the open / close detection means that detects a closed state, and receives a signal from the press detection means that has detected a press, for a predetermined time set by the user of the folding cellular phone. A foldable mobile phone characterized in that control is performed so that power is supplied only to the mobile phone.
閉状態を検出している前記開閉検出手段からの信号のみを受けることにより前記背面ＬＣＤ及び前記メインＬＣＤに電源を供給しないように制御するとともに、
開状態を検出している前記開閉検出手段からの信号のみを受けることにより前記背面ＬＣＤに電源を供給しないで前記メインＬＣＤに電源を供給するように制御する、
ことを特徴とする請求項１記載の折り畳み型携帯電話機。The controller is
Control is performed not to supply power to the rear LCD and the main LCD by receiving only a signal from the open / close detection means that detects a closed state,
Control to supply power to the main LCD without supplying power to the rear LCD by receiving only a signal from the open / close detection means that detects an open state.
The foldable mobile phone according to claim 1 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001124191A JP3623752B2 (en) | 2001-04-23 | 2001-04-23 | Folding mobile phone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001124191A JP3623752B2 (en) | 2001-04-23 | 2001-04-23 | Folding mobile phone |
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| Publication Number | Publication Date |
|---|---|
| JP2002320006A JP2002320006A (en) | 2002-10-31 |
| JP3623752B2 true JP3623752B2 (en) | 2005-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2001124191A Expired - Fee Related JP3623752B2 (en) | 2001-04-23 | 2001-04-23 | Folding mobile phone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4552437B2 (en) * | 2003-03-20 | 2010-09-29 | マグナチップセミコンダクター有限会社 | Display device |
| JPWO2004110032A1 (en) | 2003-06-06 | 2006-07-20 | 富士通株式会社 | Portable terminal device, application execution notification method and application execution notification program in portable terminal device |
| CN100454371C (en) * | 2004-03-10 | 2009-01-21 | 罗姆股份有限公司 | Organic EL display device |
| WO2005088595A1 (en) * | 2004-03-10 | 2005-09-22 | Rohm Co., Ltd | Organic el display device |
| US8681140B2 (en) | 2004-05-21 | 2014-03-25 | Semiconductor Energy Laboratory Co., Ltd. | Display device and electronic apparatus having the same |
| JP4939770B2 (en) * | 2004-05-21 | 2012-05-30 | 株式会社半導体エネルギー研究所 | Display device |
| KR100795797B1 (en) * | 2006-05-16 | 2008-01-21 | 삼성에스디아이 주식회사 | Organic luminescence display device and power supply unit of the same |
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