JP2012103328A - Display device - Google Patents

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JP2012103328A
JP2012103328A JP2010249670A JP2010249670A JP2012103328A JP 2012103328 A JP2012103328 A JP 2012103328A JP 2010249670 A JP2010249670 A JP 2010249670A JP 2010249670 A JP2010249670 A JP 2010249670A JP 2012103328 A JP2012103328 A JP 2012103328A
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display
illuminance
signal line
display control
temperature
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JP5560163B2 (en
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Hiroyuki Kojima
弘行 小島
Tsuyoshi Miura
烈 三浦
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MK Seiko Co Ltd
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MK Seiko Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a large-sized display device such that a display screen of arbitrary size installed on a wall surface etc., of a building and its display control part are provided apart from each other, and an illuminance sensor detecting ambient lightness and a temperature sensor in the device are attached at arbitrary positions, fitting work for both the sensors being reduced and a rise in cost being suppressed.SOLUTION: A plurality of display panel groups are constituted by connecting a plurality of display panels constituting a display screen in series by every predetermined number, a reception circuit which receives a display control signal from a display control unit is provided for each of the display panel groups, and illuminance signal lines extended from the illuminance sensor attached at an arbitrary position nearby the display screen is connected to any of the reception circuits provided as many as the display panel groups. A reception circuit to which the illuminance sensor is connected among the plurality of reception circuits transmits an illuminance detection result input from the illuminance sensor to other reception circuits on receiving the illuminance detection result, and all the reception circuits share information about the illuminance detection result to adjust light emission display brightness of each of the display panel groups.

Description

本発明は、LED(発光ダイオード)等の発光体をプリント基板上に複数配列し、各発光体を選択的に発光させることで文字、図形、記号、画像等を発光表示する表示装置に関する。   The present invention relates to a display device in which a plurality of light emitters such as LEDs (light emitting diodes) are arranged on a printed circuit board and each light emitter is selectively caused to emit light to display characters, figures, symbols, images, and the like.

従来、LEDをプリント基板上に複数配置し、選択的に点滅駆動することで文字・画像等を発光表示する表示装置が知られており、店舗施設やビルの壁面等に設置され、公衆へ向けての集客メッセージや文字ニュース等の表示が行われている。こうした表示装置の中でも建物の壁面や商業・娯楽施設の入口といった屋外に設置される装置では、太陽光や周囲に設置された照明器具による光の影響を受けて、表示画面の見易さが変化する場合がある。例えば、表示画面に日光の照射を受けている場合には発光輝度が相対的に不足して表示が見え難くなり、反対に天候の変化により曇天や雨・雪で周囲が暗くなった場合には、表示画面が明るく見えすぎてギラつきを引き起こして表示が見え難くなる。そこで、このような問題に対処して特許文献1に開示される提案がなされている。特許文献1の装置によれば、照度センサが検出したセンサ信号を基にして、西日などの強い直射日光が当ったような場合にLEDユニットの発光色を見えやすい発光色に変更し、更に発光輝度を上げる調節を行うことにより、周囲の明るさ変化に対応した見やすい表示を行うようにしている。   Conventionally, a display device in which a plurality of LEDs are arranged on a printed circuit board and selectively flashing and driving to display characters / images by light emission is known, and is installed on the wall of a store facility or building, etc. All the message messages and text news are displayed. Among these display devices, devices installed outdoors, such as building walls and commercial / entertainment entrances, change the visibility of the display screen due to the effects of sunlight and light from surrounding lighting equipment. There is a case. For example, if the display screen is exposed to sunlight, the display brightness is relatively insufficient, making it difficult to see the display. Conversely, if the surroundings become dark due to cloudy weather, rain, or snow due to changes in the weather, The display screen looks too bright, causing glare and making the display difficult to see. Therefore, a proposal disclosed in Patent Document 1 has been made to deal with such a problem. According to the device of Patent Document 1, based on the sensor signal detected by the illuminance sensor, the light emission color of the LED unit is changed to an easy-to-see light emission color when strong direct sunlight such as the sun strikes. By adjusting the light emission brightness, an easy-to-read display corresponding to the surrounding brightness change is performed.

特開平9−297554号JP-A-9-297554

特許文献1に示されるような周囲の明るさを検出して表示画面の発光輝度を調節する表示装置では、その多くが表示画面の正面位置に照度センサを備えており、表示画面を照らす光を検出して輝度調節を行うようにしている。また照度センサが取り付けられる位置も固定されている場合が多く、表示画面を形成するプリント基板上の特定位置に光センサ素子が実装されていたり、あるいは表示画面の周縁部に形成される周縁フレームの一部に設けた開口部に照度センサユニットを組み込んでいる。   Many of the display devices that detect ambient brightness and adjust the light emission luminance of the display screen as disclosed in Patent Document 1 include an illuminance sensor at the front position of the display screen, and emit light that illuminates the display screen. The brightness is adjusted by detection. In many cases, the position where the illuminance sensor is attached is also fixed, and the optical sensor element is mounted at a specific position on the printed circuit board forming the display screen, or the peripheral frame formed on the peripheral portion of the display screen. An illuminance sensor unit is incorporated in an opening provided in a part.

ところで、表示装置が設置される立地条件は様々であり、表示画面が一様に同じ明るさのもとに置かれるとは限らない。例えば、周囲の樹木や建造物により表示画面の一部が影で覆われたり、周囲に設置された照明設備の光により表示画面の一部分が強く照らされたりすることがあり、このように表示画面を照らす明るさが部分的に異なる状況では、照度センサの取付位置が表示画面の見やすさを大きく左右することになる。表示画面のごく一部に強い光が当たっているだけであるにもかかわらずその位置に照度センサが存在すると、表示装置は発光輝度を高める調節を行い、結果として表示画面のほとんどを占める暗い部分が明るくなり過ぎて視認性が低下することになる。またその反対の状況も発生することがある。   By the way, the location conditions where the display device is installed are various, and the display screen is not always placed under the same brightness. For example, a part of the display screen may be covered with shadows by surrounding trees or buildings, or a part of the display screen may be strongly illuminated by the light of the lighting equipment installed in the surroundings. In a situation where the brightness of illuminating is partially different, the mounting position of the illuminance sensor greatly affects the visibility of the display screen. If there is an illuminance sensor at that position even though only a small part of the display screen is exposed to strong light, the display device will adjust to increase the emission brightness, resulting in dark areas that occupy most of the display screen. Becomes too bright and the visibility decreases. The opposite situation may also occur.

こうした問題への解決策としては、照度センサを表示画面から分離して単独ユニット化し、表示画面から照度センサを延長して任意の位置に取り付け可能にする構造が考えられる。それにより、表示装置を設置する場所の個々の条件に対応して照度センサの取付位置を調節することが可能になる。しかしながら、従来のこうした構造では、設置作業の過分な増加と製品コストの上昇を招くことがあった。表示画面の所定位置に形成された照度センサ接続部と任意の位置に取り付けた照度センサとの間を照度信号線により接続し、更に見栄えを考慮しながら照度信号線を引き回して固定する作業を行う為、照度センサの取付位置と照度センサ接続部との位置関係によっては長い距離にわたって照度信号線が必要になることがあり、その分の照度信号線に要するコストと敷設作業が発生するのである。   As a solution to such a problem, a structure in which the illuminance sensor is separated from the display screen into a single unit, and the illuminance sensor can be extended from the display screen and attached to an arbitrary position can be considered. This makes it possible to adjust the mounting position of the illuminance sensor in accordance with the individual conditions of the place where the display device is installed. However, such a conventional structure sometimes causes an excessive increase in installation work and an increase in product cost. Connect the illuminance sensor connection part formed at a predetermined position on the display screen to the illuminance sensor attached at an arbitrary position with an illuminance signal line, and then draw and fix the illuminance signal line while considering the appearance. For this reason, depending on the positional relationship between the illuminance sensor mounting position and the illuminance sensor connection portion, an illuminance signal line may be required over a long distance, and the cost and installation work required for the illuminance signal line accordingly.

また、表示画面を構成する単位パネルを縦横それぞれ任意の枚数で組み合わせ、設置箇所に応じて所望サイズの表示画面を構築する大型表示タイプの場合には、表示画面の大きさや縦横方向のパネル枚数が一様では無く、表示画面自体に照度センサ接続部を備えることは困難である。その為、表示画面と別体で設置される表示制御部に照度センサ接続部を備えることにより、設置物件毎に異なる表示画面の構成に対応していた。パソコン等からなる表示制御部は、屋外用収納ラックに収められて表示画面から離れた位置に設置される構成となっており、その機器構成は設置箇所の条件に左右されることなく一定である。そこで、表示制御部に照度センサ接続部を設けて照度センサの検出結果を取り込み、表示制御部から表示画面の輝度調節を行うようにしているのである。その為、表示画面に近い位置に設けた照度センサから表示制御部まで照度信号線を敷設する必要があり、コストの上昇と作業の増加が避けられなかった。   In addition, in the case of a large display type in which the unit panels constituting the display screen are combined in any number of vertical and horizontal directions and a desired size display screen is constructed according to the installation location, the size of the display screen and the number of panels in the vertical and horizontal directions It is not uniform, and it is difficult to provide an illuminance sensor connection part on the display screen itself. For this reason, the display control unit installed separately from the display screen is provided with an illuminance sensor connection unit, thereby corresponding to a configuration of a display screen that is different for each installed property. The display control unit consisting of a personal computer or the like is configured to be installed in an outdoor storage rack and away from the display screen, and the device configuration is constant regardless of the conditions of the installation location. . Therefore, an illuminance sensor connection unit is provided in the display control unit, the detection result of the illuminance sensor is taken in, and the brightness of the display screen is adjusted from the display control unit. Therefore, it is necessary to lay an illuminance signal line from the illuminance sensor provided at a position close to the display screen to the display control unit, and an increase in cost and work are inevitable.

そして、表示装置における発光輝度調節動作には、上記のように周囲の明るさが変化する中での見易さを目的としたものの他に、表示装置の内部温度が上昇した場合に表示用の発光素子や電子部品を熱の影響から保護することを目的としたものがある。内部温度が完全に異常レベルまで達して電子部品が破壊に至るのを防ぐ為、温度センサで内部温度の上昇を検出すると表示発光輝度を低下させ、それ以上熱が発生するのを防ぐのである。これは表示装置の過熱保護機能として、例示するまでもなくこの種の表示装置に備えられていた機能であるが、表示画面において過熱しやすい箇所は設置物件毎に差がある為、上記照度センサと同様にこの温度センサについても表示画面内部の任意の位置に取り付けられる構造とすることが望ましい。しかも大型表示タイプの装置では温度センサを複数箇所に備えることが求められることから、複数の温度センサと表示制御部とを温度信号線で接続する必要があり、やはりコストの上昇と作業の増加を招いていた。   In addition, the light emission luminance adjustment operation in the display device is intended to be easy to see when the ambient brightness changes as described above, and is used for display when the internal temperature of the display device rises. Some of them aim to protect light emitting elements and electronic components from the effects of heat. In order to prevent the internal temperature from reaching an abnormal level completely and destroying the electronic component, if the temperature sensor detects an increase in the internal temperature, the display light emission luminance is lowered and further heat generation is prevented. This is a function provided in this type of display device as an overheat protection function of the display device, but the illuminance sensor described above has a difference in the place where it is easily overheated on the display screen for each installation. Similarly to this, it is desirable that the temperature sensor be attached to an arbitrary position inside the display screen. Moreover, since a large display type device is required to have temperature sensors at a plurality of locations, it is necessary to connect a plurality of temperature sensors and a display control unit with temperature signal lines, which also increases costs and increases work. I was invited.

本発明は上記のような問題点に対処してなされたものであり、建物の壁面等に設置した任意サイズの表示画面とその表示制御部とを離間して設け、更に周囲の明るさを検出する照度センサと装置内部の温度センサとを任意の位置に取り付け可能にした大型の表示装置において、両センサの取り付け作業を軽減すると同時に、コストの上昇を抑えた装置を提供することを目的としている。   The present invention has been made in response to the above-described problems. A display screen of an arbitrary size installed on a wall surface of a building and the display control unit are provided apart from each other, and the ambient brightness is detected. An object of the present invention is to provide a device capable of reducing the mounting work while reducing the mounting work of both sensors in a large-sized display device in which an illuminance sensor to be operated and a temperature sensor inside the device can be attached at arbitrary positions. .

上記の目的を達成するために本発明は、プリント基板上に発光体を配列した表示パネルを複数備え、表示パネルの発光体を選択的に点滅することで文字や映像を発光表示する表示部と、前記発光体の点滅制御を行う表示制御手段とを備える表示装置において、前記表示部近傍の照度を測定する照度検出手段と、前記表示制御手段の内部に備えられ、前記表示部の発光体を点滅制御するための表示制御信号を前記表示部に出力する表示制御信号送出回路と、前記表示部に備える複数の表示パネルを所定数毎に直列接続して構成する表示パネル群と、前記表示パネル群毎に設けられ、前記表示制御信号送出回路から出力される表示制御信号を受信する受信回路と、前記受信回路で受信した表示制御信号に基づいて表示パネルに備える発光体を点滅駆動する点滅駆動回路とを備え、前記表示パネル群毎に備える複数の前記受信回路を信号線により直列接続すると共に、前記照度検出手段を複数の前記受信回路の何れにも接続可能に構成し、照度検出手段が接続された受信回路に入力される照度検出結果に関する情報を全ての受信回路に伝達し、伝達した照度に基づいて各表示パネル群の発光表示輝度を一括で切り換えることを特徴とする表示装置を提案する。   In order to achieve the above object, the present invention includes a display unit that includes a plurality of display panels in which light emitters are arranged on a printed circuit board, and displays and displays characters and images by selectively blinking the light emitters of the display panel. A display control means for controlling the blinking of the light emitter, an illuminance detection means for measuring the illuminance in the vicinity of the display section, and an illuminance detector for the display section provided inside the display control means. A display control signal transmission circuit for outputting a display control signal for controlling blinking to the display unit; a display panel group configured by connecting a plurality of display panels provided in the display unit in series for each predetermined number; and the display panel A receiving circuit that is provided for each group and receives a display control signal output from the display control signal transmission circuit, and a light-emitting body provided in the display panel blinks based on the display control signal received by the receiving circuit A plurality of receiving circuits provided for each display panel group in series with a signal line, and the illuminance detecting means is configured to be connectable to any of the plurality of receiving circuits. Information relating to the illuminance detection result input to the receiving circuit to which the illuminance detecting means is connected is transmitted to all the receiving circuits, and the light emission display luminance of each display panel group is collectively switched based on the transmitted illuminance. A display device is proposed.

上記提案の表示装置は、前記受信回路同士を接続する信号線を、前記表示制御信号送出回路から入力された表示制御信号を前段の受信回路から後段の受信回路へ向けて転送する表示制御信号ラインと、受信回路同士の間で前段から後段へ向けて信号を送る下り信号ラインと、受信回路同士の間で後段から前段へ向けて信号を送る上り信号ラインとで構成し、前記照度検出手段が接続された受信回路は、前記照度検出手段による検出結果を下り信号ライン及び上り信号ラインを用いて他の受信回路に伝達することが望ましい。   In the proposed display device, the display control signal line for transferring the display control signal input from the display control signal sending circuit to the receiving circuit in the subsequent stage is transmitted through the signal line connecting the receiving circuits to each other. And a downstream signal line that sends a signal from the front stage to the rear stage between the receiving circuits, and an upstream signal line that sends a signal from the rear stage to the front stage between the receiving circuits, and the illuminance detection means It is preferable that the connected receiving circuit transmits the detection result by the illuminance detection means to another receiving circuit using the down signal line and the up signal line.

また、表示部の内部温度を検出する温度検出手段を設けると共にこの温度検出手段を複数の前記受信回路の何れにも接続可能に構成し、温度検出手段が接続された受信回路に入力される検出温度が予め設定した所定温度を超える異常状態にあるか、あるいは所定温度以下の正常状態にあるかを判断して、判断した表示部温度状態に関する情報を全ての受信回路に伝達し、伝達した表示部温度状態に基づいて各表示パネル群の発光表示輝度を切り換えることが望ましい。   In addition, a temperature detection means for detecting the internal temperature of the display unit is provided, and the temperature detection means is configured to be connectable to any of the plurality of reception circuits, and the detection is input to the reception circuit to which the temperature detection means is connected. It is judged whether the temperature is in an abnormal state exceeding a predetermined temperature set in advance, or in a normal state below a predetermined temperature, information on the determined display unit temperature state is transmitted to all receiving circuits, and the transmitted display It is desirable to switch the light emission display brightness of each display panel group based on the part temperature state.

前記照度検出手段が接続された前記受信回路は前記照度検出手段による検出結果を基に表示部近傍の明るさが昼間状態であるか夜間状態であるかを判断し、昼間状態と夜間状態とに応じて連続したハイレベルの電位または連続したローレベルの電位を前記下り信号ライン及び上り信号ラインに出力し、同時に、前記温度検出手段による検出結果を基に判断した表示部内部温度が正常状態の時は前記電位の連続ハイレベルまたは連続ローレベルを維持し、表示部内部温度状態が異常状態の時は前記電位の連続ハイレベルまたは連続ローレベルから、前記表示制御信号送出回路から出力される表示制御信号に含まれる基準パルス信号に同期して反転するパルスを前記下り信号ライン及び上り信号ラインに出力することが望ましい。   The receiving circuit to which the illuminance detection unit is connected determines whether the brightness near the display is a daytime state or a nighttime state based on the detection result by the illuminance detection unit, and the daylight state and the nighttime state are determined. Accordingly, a continuous high level potential or a continuous low level potential is output to the downstream signal line and the upstream signal line, and at the same time, the internal temperature of the display unit determined based on the detection result by the temperature detection means is in a normal state. The display is output from the display control signal transmission circuit from the continuous high level or the continuous low level of the potential when the internal temperature state of the display unit is abnormal. It is desirable to output a pulse that is inverted in synchronization with a reference pulse signal included in the control signal to the downstream signal line and the upstream signal line.

本発明によれば、表示画面を構成する複数の表示パネルを所定枚数毎に直列接続して複数の表示パネル群を形成し、この表示パネル群のそれぞれに対して、表示制御部からの表示制御信号を受ける為の受信回路を設け、表示画面近傍の任意の位置に取り付けた照度センサから延出される照度信号線を、表示パネル群の数と同数だけ備える受信回路の何れにも接続可能にしている。複数の受信回路の内の照度センサが接続された受信回路は、照度センサから入力される照度検出結果を受けると他の受信回路に伝達し、全ての受信回路において照度検出結果に関する情報を共有して各表示パネル群の発光表示輝度を調整するようにしている。これにより、表示画面の近くに取り付けた照度センサから延びる照度信号線を表示画面の内部に備える最も近い位置の受信回路に接続するだけで結線作業を完了させることができ、引き回す照度信号線の長さを短縮化することが可能になる。同時に、照度信号線の敷設作業も軽減することが可能になる。   According to the present invention, a plurality of display panels constituting a display screen are connected in series every predetermined number to form a plurality of display panel groups, and display control from the display control unit is performed for each of the display panel groups. A receiving circuit for receiving signals is provided, and the illuminance signal lines extended from the illuminance sensor attached at an arbitrary position near the display screen can be connected to any of the receiving circuits having the same number as the number of display panel groups. Yes. A receiving circuit connected to an illuminance sensor among a plurality of receiving circuits receives an illuminance detection result input from the illuminance sensor and transmits it to another receiving circuit, and all the receiving circuits share information on the illuminance detection result. Thus, the light emission display brightness of each display panel group is adjusted. As a result, the wiring work can be completed simply by connecting the illuminance signal line extending from the illuminance sensor attached near the display screen to the receiving circuit at the closest position inside the display screen, and the length of the illuminance signal line to be routed It is possible to shorten the length. At the same time, the illuminance signal line laying work can be reduced.

また、表示画面の内部に備える複数の受信回路同士を直列接続する信号線を、表示制御部から入力される表示制御信号を転送する表示制御信号ラインと、受信回路同士で前段から後段へ向けて信号を送る下り信号ラインと、後段から前段へ向けて信号を送る上り信号ラインとで構成しており、照度センサから入力される照度検出結果を下り信号ラインと上り信号ラインを用いて他の受信回路に伝達するようにしている。これにより、複雑な回路構成を必要とすることなく、表示制御信号の転送と受信回路間における照度検出結果の伝達を行うことが出来る。   In addition, a signal line for connecting a plurality of receiving circuits provided in the inside of the display screen in series, a display control signal line for transferring a display control signal input from the display control unit, and a receiving circuit from the previous stage to the subsequent stage It consists of a downstream signal line that sends a signal and an upstream signal line that sends a signal from the latter stage to the previous stage, and uses the downstream signal line and the upstream signal line to receive the illuminance detection result input from the illuminance sensor. It is transmitted to the circuit. Thereby, it is possible to transfer the display control signal and transmit the illuminance detection result between the receiving circuits without requiring a complicated circuit configuration.

また、表示画面の温度を検出する温度センサを備え、表示画面内部の任意の位置に取り付けた温度センサから延出される温度信号線を前記複数の受信回路の何れにも接続可能にしており、温度センサが接続された受信回路は、温度センサから入力される温度検出結果を受けると他の受信回路に伝達し、全ての受信回路において温度検出結果に関する情報を共有して各表示パネルの発光輝度を調整するようにしている。これにより、表示画面内部において、任意の位置に取り付けた温度センサから延びる温度信号線をそこから最も近い位置にある受信回路に接続するだけで結線作業を完了させることができ、引き回す温度信号線の長さを短縮化できると共に温度信号線の敷設作業を軽減することができる。   In addition, a temperature sensor for detecting the temperature of the display screen is provided, and a temperature signal line extending from a temperature sensor attached at an arbitrary position inside the display screen can be connected to any of the plurality of receiving circuits. When receiving the temperature detection result input from the temperature sensor, the receiving circuit to which the sensor is connected transmits it to other receiving circuits, and the information on the temperature detection result is shared by all the receiving circuits so that the luminance of each display panel can be adjusted. I try to adjust it. As a result, the wiring operation can be completed by simply connecting the temperature signal line extending from the temperature sensor attached at an arbitrary position to the receiving circuit closest to the temperature signal line inside the display screen. The length can be shortened and the temperature signal line laying work can be reduced.

また、照度センサが接続された受信回路は照度センサの検出結果を基にして周囲が昼間状態であるか夜間状態であるかを判断し、判断した結果としての2種類の状態を連続したハイレベルの電位または連続したローレベルの電位によって表し、これらの電位を下り信号ラインと上り信号ラインに出力するようにしている。従って、複数の受信回路は、下り信号ラインと上り信号ラインを通じて伝達される連続ハイレベル電位または連続ローレベル電位によって周囲の明るさを認識することができる。そして、照度センサと並行して温度センサが表示画面内部の温度を検出しており、検出結果が正常温度範囲内にあれば下り信号ラインと上り信号ラインを通じて伝達している照度検出結果に関する電位の連続ハイレベルまたは連続ローレベルを維持し、万一異常温度を検出した場合には、下り信号ラインと上り信号ラインを通じて伝達している電位を、表示制御部から表示制御信号ラインを通じて入力される表示制御信号に含まれる基準パルス信号に同期して反転させて下り信号ライン及び上り信号ラインに出力するようにしている。これにより、複数の受信回路の間で複雑なプロトコルを必要とするデータ通信を行うことなく、簡単な回路構成で照度検出結果と温度検出結果に関する情報の共有を行うことができる。また、複雑なプロトコルを必要とするデータ通信が不要であることにより、複数の受信回路同士で情報の共有を行う際に時間差が発生することが無く、ほぼ同時に一括で情報共有を行うことができる。   In addition, the receiving circuit connected to the illuminance sensor determines whether the surroundings are in the daytime state or the nighttime state based on the detection result of the illuminance sensor, and continuously determines the two types of states as a result of the determination. These potentials are output to the downstream signal line and the upstream signal line. Accordingly, the plurality of receiving circuits can recognize the ambient brightness by the continuous high level potential or the continuous low level potential transmitted through the downstream signal line and the upstream signal line. In parallel with the illuminance sensor, the temperature sensor detects the temperature inside the display screen, and if the detection result is within the normal temperature range, the potential of the illuminance detection result transmitted through the downstream signal line and the upstream signal line is detected. In the event that an abnormal temperature is detected while maintaining a continuous high level or continuous low level, the potential transmitted through the downstream signal line and upstream signal line is input from the display control unit through the display control signal line. The signal is inverted in synchronization with the reference pulse signal included in the control signal and output to the downstream signal line and the upstream signal line. Thereby, it is possible to share information on the illuminance detection result and the temperature detection result with a simple circuit configuration without performing data communication requiring a complicated protocol between the plurality of receiving circuits. In addition, since data communication that requires a complicated protocol is not required, there is no time difference when information is shared between a plurality of receiving circuits, and information can be shared at the same time almost simultaneously. .

本発明実施例に係る表示装置の全体構成を示すブロック図である。It is a block diagram which shows the whole structure of the display apparatus which concerns on an Example of this invention. 本発明実施例に係る受信回路と信号線の詳細を示す説明図である。It is explanatory drawing which shows the detail of the receiving circuit and signal line which concern on an Example of this invention. 本発明実施例の動作に係るパルス信号を示す説明図である。It is explanatory drawing which shows the pulse signal which concerns on operation | movement of this invention Example.

以下、本発明の好適な実施形態を図面を参照しながら説明する。図1は本発明実施例に係る表示装置の全体構成を示すブロック図である。1は表示画面であり(特許請求の範囲に記載の表示部)、LEDをドットマトリクス配列した表示面を備え、配列したLEDを選択的に点滅することで文字や映像を発光表示する。3はプリント基板上にLEDをドットマトリクス状に実装して構成する表示パネルであり、本実施例では、1枚の表示パネルあたり縦横方向へそれぞれLEDを16個ずつ配列し、合計256個のLEDによるドットマトリクス面を形成している。この表示パネルには全角サイズのフォントデータを1文字分発光表示することが可能であり、表示装置の設置場所に応じて所望サイズの表示画面を構築する場合に、表示画面を構成する最小単位の要素となる。図1ではこの表示パネルを横方向へ4枚、縦方向へ4枚それぞれ配列し、合計16枚の表示パネルによる16文字分の表示面積を持つ表示画面を構成している。   Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of a display device according to an embodiment of the present invention. Reference numeral 1 denotes a display screen (display unit described in the claims), which includes a display surface in which LEDs are arranged in a dot matrix, and emits and displays characters and images by selectively blinking the arranged LEDs. Reference numeral 3 denotes a display panel configured by mounting LEDs in a dot matrix on a printed circuit board. In this embodiment, 16 LEDs are arranged in the vertical and horizontal directions per display panel, for a total of 256 LEDs. The dot matrix surface is formed. This display panel can display full-size font data for one character by light emission. When constructing a display screen of a desired size according to the installation location of the display device, the minimum unit constituting the display screen is used. Become an element. In FIG. 1, four display panels are arranged in the horizontal direction and four in the vertical direction, respectively, to form a display screen having a display area of 16 characters by a total of 16 display panels.

4は点滅駆動回路であり、後述する表示制御部から出力される表示制御信号を受けて表示パネル3に配列したLEDを1ドット単位で点滅駆動を行う。5−1は表示パネル3を複数枚直列接続した表示パネル群であり、図1では4枚の表示パネルを横方向に直列接続している。これにより、合計16枚の表示パネルからなる表示画面の最上段に位置する横1行分を表示パネル群5−1で構成し、同様にして表示画面の2段目を表示パネル群5−2、3段目を表示パネル群5−3、4段目を表示パネル群5−4としてそれぞれ構成している。   Reference numeral 4 denotes a blinking drive circuit, which receives a display control signal output from a display control unit, which will be described later, and blinks the LEDs arranged on the display panel 3 in units of one dot. Reference numeral 5-1 denotes a display panel group in which a plurality of display panels 3 are connected in series. In FIG. 1, four display panels are connected in series in the horizontal direction. As a result, one horizontal line located at the top of the display screen composed of a total of 16 display panels is constituted by the display panel group 5-1, and similarly, the second stage of the display screen is the display panel group 5-2. The third row is configured as a display panel group 5-3, and the fourth row is configured as a display panel group 5-4.

6−1から6−4は表示パネル群5−1から5−4にそれぞれ接続する受信回路であり、後述する表示制御部から出力される表示制御信号を受けて表示パネル群5−1から5−4の点滅駆動回路4に点滅制御信号を供給する。この受信回路6−1から6−4は信号線7により直列接続されており、表示制御部からの表示制御信号を受信回路6−4で受けて順次6−3、6−2、6−1に転送し、それぞれの受信回路が接続された表示パネル群の表示パネルが点滅駆動されて表示画面全体として文字や映像が表示される。   Reference numerals 6-1 to 6-4 denote receiving circuits connected to the display panel groups 5-1 to 5-4, respectively, and display panel signals 5-1 to 5 in response to a display control signal output from a display control unit described later. The flashing control signal is supplied to the flashing drive circuit 4 of -4. The receiving circuits 6-1 to 6-4 are connected in series by a signal line 7, and the display control signal from the display control unit is received by the receiving circuit 6-4 and sequentially 6-3, 6-2, 6-1. The display panels of the display panel group to which the respective receiving circuits are connected are driven to blink, and characters and video are displayed as a whole display screen.

8は照度センサであり(特許請求の範囲に記載の照度検出手段)、表示画面に近い任意の場所に取り付けられて周囲の明るさを検出する。この照度センサ8は図1中では受信回路6−1に照度信号線9を介して接続されているが、照度センサを接続するためのインターフェース(図示しない)は他の受信回路6−2から6−4にも具備されており、何れの受信回路にも接続可能な構成となっている。図1では表示画面の上方位置に照度センサ8が取り付けられ、その取付位置から最も近い位置関係にある受信回路6−1に接続した接続した状態を示しており、もし照度センサ8の取付位置が変わればその取付位置から最も近い受信回路に照度信号線9を接続すれば良い。10は温度センサであり(特許請求の範囲に記載の温度検出手段)、表示画面内部の任意の位置に取り付けられて内部温度を検出する。図1では2つの温度センサ10を表示画面内部の2ヶ所に取り付け、温度信号線11を介して受信回路6−1と6−3に接続しているが、照度センサ8と同様に温度センサを接続するためのインターフェース(図示しない)は全ての受信回路6−1から6−4に具備されており、何れの受信回路にも接続可能な構成となっている。表示画面1の表示パネル構成に応じて温度センサ10の取付位置を適宜調整し、取り付けた位置から最も近い位置にある受信回路に温度信号線11を接続すれば良い。   Reference numeral 8 denotes an illuminance sensor (illuminance detection means described in the claims), which is attached to an arbitrary place close to the display screen and detects ambient brightness. The illuminance sensor 8 is connected to the reception circuit 6-1 via the illuminance signal line 9 in FIG. 1, but interfaces (not shown) for connecting the illuminance sensor are other reception circuits 6-2 to 6-6. -4, and can be connected to any receiving circuit. In FIG. 1, the illuminance sensor 8 is attached to the upper position of the display screen, and the connected state is shown in which the illuminance sensor 8 is connected to the receiving circuit 6-1 that is closest to the attachment position. If changed, the illuminance signal line 9 may be connected to the receiving circuit closest to the mounting position. Reference numeral 10 denotes a temperature sensor (temperature detection means described in claims), which is attached to an arbitrary position inside the display screen to detect the internal temperature. In FIG. 1, two temperature sensors 10 are attached at two locations inside the display screen and connected to the receiving circuits 6-1 and 6-3 via the temperature signal line 11. An interface (not shown) for connection is provided in all the reception circuits 6-1 to 6-4, and is configured to be connectable to any reception circuit. The attachment position of the temperature sensor 10 may be appropriately adjusted according to the display panel configuration of the display screen 1, and the temperature signal line 11 may be connected to the receiving circuit located closest to the attachment position.

2は表示制御部であり(特許請求の範囲に記載の表示制御手段)、パソコン12及び表示制御信号送出回路13を備えている。パソコン12には表示画面1に表示コンテンツを表示するための表示制御プログラムがインストールされており、この表示制御プログラムが実行されることでパソコンから表示用のデータ(DVI信号)が出力される。出力された表示用のデータは表示制御信号送出回路13に入力され、この表示制御信号送出回路13において表示画面1で表示を行う為の表示制御信号に変換され、表示画面1の内部に備えられる受信回路6−1から6−4に向けて送出されるのである。   Reference numeral 2 denotes a display control unit (display control means described in claims), which includes a personal computer 12 and a display control signal transmission circuit 13. A display control program for displaying display content on the display screen 1 is installed in the personal computer 12, and display data (DVI signal) is output from the personal computer when the display control program is executed. The output display data is input to the display control signal transmission circuit 13, converted into a display control signal for display on the display screen 1 in the display control signal transmission circuit 13, and provided in the display screen 1. The data is sent from the receiving circuit 6-1 to 6-4.

次に、本発明実施例に係る受信回路とそれを接続する信号線について図2を基に詳細に説明する。受信回路6−1から6−4を接続する信号線7は、表示制御信号ライン7aと、下り信号ライン7bと、上り信号ライン7cとで構成されている。表示制御信号ライン7aは、表示制御部2の表示制御信号送出回路13から送出されてきた表示制御信号を受信回路6−4から後段の受信回路に向けて転送する信号線である。下り信号ライン7bと上り信号ライン7cは、表示制御信号とは別に受信回路6−1から6−4の間で信号を送受信するための信号線であり、下り信号ラインは受信回路6−4から6−1の間で信号を送受信するための信号線である。図1で説明したように受信回路6−1から6−4には照度センサ8と温度センサ10が接続可能になっており、照度センサで検出した昼夜の区別を示す電位信号と、温度センサで検出した温度異常有無を示す検出信号との2種類の信号が下り信号ライン7bと上り信号ライン7cを通じて受信回路間に伝達される。   Next, the receiver circuit according to the embodiment of the present invention and the signal line connecting it will be described in detail with reference to FIG. The signal line 7 connecting the receiving circuits 6-1 to 6-4 includes a display control signal line 7a, a downstream signal line 7b, and an upstream signal line 7c. The display control signal line 7a is a signal line for transferring the display control signal transmitted from the display control signal transmission circuit 13 of the display control unit 2 from the reception circuit 6-4 to the subsequent reception circuit. The downstream signal line 7b and the upstream signal line 7c are signal lines for transmitting and receiving signals between the reception circuits 6-1 to 6-4 separately from the display control signal, and the downstream signal line is from the reception circuit 6-4. 6-1 is a signal line for transmitting and receiving signals between 6-1. As described with reference to FIG. 1, the illuminance sensor 8 and the temperature sensor 10 can be connected to the receiving circuits 6-1 to 6-4, and the potential signal indicating the distinction between day and night detected by the illuminance sensor and the temperature sensor Two types of signals, that is, a detected signal indicating the presence or absence of the detected temperature abnormality, are transmitted between the receiving circuits through the downstream signal line 7b and the upstream signal line 7c.

次に、受信回路間に伝達される照度と温度に関する信号について図3を基に説明する。図1に示す照度センサ8で表示画面周囲の明るさを検出した結果が受信回路6−1に入力されると、受信回路6−1は、検出結果の値が予め設定された閾値より高い場合を昼間状態、閾値より低い場合を夜間状態と判断し、判断結果が昼間状態であれば連続したハイレベルの電位を上り信号ライン7cを通じて前段側の受信回路6−2に出力する。受信回路6−2では、上り信号ライン7cにより入力された連続ハイレベルの電位を認識して、前段の受信回路6−3へ連続ハイレベルの電位を転送し、同様にして受信回路6−4まで連続ハイレベルの電位が伝達される。このようにして、照度センサ8の検出結果に基づく昼夜の区別を表す情報が全ての受信回路に伝達される。この時、照度センサ8の検出結果が受信回路6−1で夜間状態と判断されると、連続したローレベルの電位が上り信号ライン7cを通じて前段側の受信回路6−2から6−4へと出力される。各受信回路では、昼夜の区別に応じて昼間状態であればそれぞれに接続された表示パネル群を高い発光輝度で表示を行い、夜間状態であれば低い発光輝度で表示を行う。なお、ここでは昼間状態を連続ハイレベルの電位とし、夜間状態を連続ローレベルの電位としているが、この関係を反対にして昼間状態を連続ローレベルの電位、夜間状態を連続ハイレベルの電位としても良い。   Next, signals relating to illuminance and temperature transmitted between the receiving circuits will be described with reference to FIG. When the result of detecting the brightness around the display screen by the illuminance sensor 8 shown in FIG. 1 is input to the reception circuit 6-1, the reception circuit 6-1 determines that the value of the detection result is higher than a preset threshold value. Is a daytime state, and when it is lower than the threshold value, it is determined as a nighttime state. If the determination result is a daytime state, a continuous high level potential is output to the receiving circuit 6-2 on the upstream side through the upstream signal line 7c. The receiving circuit 6-2 recognizes the continuous high level potential input through the upstream signal line 7c, transfers the continuous high level potential to the preceding receiving circuit 6-3, and similarly receives the receiving circuit 6-4. Until then, a continuous high level potential is transmitted. In this way, information representing day / night distinction based on the detection result of the illuminance sensor 8 is transmitted to all receiving circuits. At this time, if the detection result of the illuminance sensor 8 is determined by the reception circuit 6-1 to be in the nighttime state, a continuous low level potential is transferred from the reception circuit 6-2 on the upstream side to the 6-4 through the upstream signal line 7c. Is output. Each receiving circuit displays a group of display panels connected to each other with high light emission luminance in the daytime state according to the distinction between daytime and nighttime, and displays with low light emission luminance in the nighttime state. Here, the daytime state is a continuous high level potential and the nighttime state is a continuous low level potential, but this relationship is reversed and the daytime state is a continuous low level potential and the night state is a continuous high level potential. Also good.

照度センサ8に基づく昼夜の区別を示す電位が全ての受信回路に伝達されている状態にあって、温度センサ10による検出結果も受信回路6−1及び受信回路6−3に入力されており、受信回路6−1と受信回路6−3では表示画面内部の温度に関する異常発生有無を監視している。受信回路6−1及び受信回路6−3では入力されてくる温度検出結果と予め設定された閾値とを比較し、温度検出結果が閾値より低い場合を温度正常状態、閾値より高い場合を温度異常状態と判断し、温度異常状態の場合に図3に示す反転パルス信号を出力する。この反転パルス信号は、表示制御信号ライン7aを通じて伝送される表示信号の中に含まれる基準パルス信号FM(表示用のフレーム信号)に同期して反転させるもので(図3(c))、表示画面周囲が昼間状態の時には連続ハイレベルの電位に対して基準パルス信号FMに同期した立ち下がりパルス(図3(a))を出力する。一方、表示画面周囲が夜間状態の時には連続ローレベルの電位に対して基準パルス信号FMに同期した立ち上がりパルス(図3(b))を出力する。ちなみに、温度検出結果が正常状態であれば反転パルス信号の出力は行われない。そして、温度異常状態が受信回路6−1で検出された場合には上り信号ライン7cを通じて前段側の受信回路6−2から6−4へと反転パルスが出力されて全ての受信回路に伝達される。もし、温度異常状態が受信回路6−3で検出された場合には、下り信号ライン7bと上り信号ライン7cの両方に反転パルスが出力される。下り信号ライン7bに出力された反転パルスは後段側の受信回路6−2及び6−1に伝達され、上り信号ライン7cに出力された反転パルスは前段側の受信回路6−4に伝達される。このようにして、温度異常が発生した場合には異常を検出した受信回路から全ての受信回路に対して反転パルス信号が出力され、異常の発生を認識した各受信回路ではそれぞれに接続された表示パネル群を昼夜の区別に関係なく低い発光輝度で表示を行うよう輝度切り換えを行い、熱の発生を抑制する。   The potential indicating day / night distinction based on the illuminance sensor 8 is transmitted to all the receiving circuits, and the detection result by the temperature sensor 10 is also input to the receiving circuit 6-1 and the receiving circuit 6-3. The receiving circuit 6-1 and the receiving circuit 6-3 monitor whether or not an abnormality relating to the temperature inside the display screen has occurred. The receiving circuit 6-1 and the receiving circuit 6-3 compare the input temperature detection result with a preset threshold value. When the temperature detection result is lower than the threshold value, the temperature is normal, and when the temperature detection result is higher than the threshold value, the temperature is abnormal. When the temperature is abnormal, the inverted pulse signal shown in FIG. 3 is output. This inverted pulse signal is inverted in synchronization with a reference pulse signal FM (display frame signal) included in the display signal transmitted through the display control signal line 7a (FIG. 3C). When the periphery of the screen is in the daytime state, a falling pulse (FIG. 3A) synchronized with the reference pulse signal FM is output with respect to the continuous high level potential. On the other hand, when the periphery of the display screen is in the night state, a rising pulse (FIG. 3B) synchronized with the reference pulse signal FM is output with respect to the continuous low level potential. Incidentally, the inverted pulse signal is not output if the temperature detection result is normal. When an abnormal temperature state is detected by the receiving circuit 6-1, an inverted pulse is output from the receiving circuit 6-2 on the upstream side to the receiving circuit 6-2 through the upstream signal line 7c and transmitted to all receiving circuits. The If an abnormal temperature state is detected by the receiving circuit 6-3, an inversion pulse is output to both the downstream signal line 7b and the upstream signal line 7c. The inversion pulse output to the downstream signal line 7b is transmitted to the receiving circuits 6-2 and 6-1 on the subsequent stage, and the inversion pulse output to the upstream signal line 7c is transmitted to the receiving circuit 6-4 on the preceding stage. . In this way, when a temperature abnormality occurs, an inversion pulse signal is output from the receiving circuit that has detected the abnormality to all the receiving circuits, and each receiving circuit that has recognized the occurrence of the abnormality has a display connected to each. The brightness is switched so that the panel group is displayed with a low emission brightness regardless of whether it is daytime or nighttime, thereby suppressing the generation of heat.

以上のように、複数の受信回路を接続している下り信号ラインと上り信号ラインに出力されているパルス信号がハイまたはローの連続したパルス信号であれば、表示画面内部の温度が正常な状態にあって、周囲の明るさが昼間状態または夜間状態の何れかであることを表し、一方、下り信号ラインと上り信号ラインに出力されているパルス信号が、連続ハイ状態から周期的に反転したロー状態を示す場合、又は連続ロー状態から周期的に反転したハイ状態を示す場合には、周囲の明るさを表しながら同時に表示画面内部の温度が異常状態であることを表す。そしてこの場合に、温度センサが接続された受信回路は、温度センサの検出温度が正常範囲である時は前段または後段から伝達されてくる連続ハイ状態または連続ロー状態のパルス信号をそのままの状態で再び前段または後段に出力し、検出温度が異常状態である時には前段または後段から伝達されてくる連続ハイ状態または連続ロー状態のパルス信号を表示制御信号に含まれる基準パルス信号FMに同期して反転させ、反転させたパルス信号を前段または後段へ出力することで異常状態の発生を全ての受信回路に伝達するのである。   As described above, if the pulse signal output to the down signal line and the up signal line connecting multiple receiving circuits is a continuous high or low pulse signal, the temperature inside the display screen is normal. In the meantime, the ambient brightness represents either the daytime state or the nighttime state. On the other hand, the pulse signals output to the downstream signal line and the upstream signal line are periodically inverted from the continuous high state. When the low state is indicated, or when the high state periodically reversed from the continuous low state is indicated, it indicates that the temperature inside the display screen is an abnormal state at the same time while expressing the surrounding brightness. In this case, the receiving circuit connected to the temperature sensor keeps the pulse signal of the continuous high state or the continuous low state transmitted from the previous stage or the subsequent stage as it is when the detected temperature of the temperature sensor is in the normal range. Output to the previous stage or the subsequent stage again. When the detected temperature is abnormal, the pulse signal in the continuous high state or the continuous low state transmitted from the previous stage or the subsequent stage is inverted in synchronization with the reference pulse signal FM included in the display control signal. Then, by outputting the inverted pulse signal to the previous stage or the subsequent stage, the occurrence of the abnormal state is transmitted to all the receiving circuits.

本発明に係る表示装置の活用例としては、店舗施設やビルの壁面等に設置され、公衆へ向けての集客メッセージや文字ニュース等の表示を行う大型表示装置に用いることができ、表示素子としてはLEDに限定されること無くプラズマ等他の発光素子を用いた表示装置にも適用することができる。   As an example of use of the display device according to the present invention, it can be used in a large display device that is installed on the wall surface of a store facility or a building and displays a message for attracting customers or text news for the public. Can be applied to a display device using other light emitting elements such as plasma without being limited to LEDs.

1 表示画面(表示部)
2 表示制御部(表示制御手段)
3 表示パネル
4 点滅駆動回路
5−1〜5−4 表示パネル群
6−1〜6−4 受信回路
7 信号線
7a 表示制御信号ライン
7b 下り信号ライン
7c 上り信号ライン
8 照度センサ(照度検出手段)
10 温度センサ(温度検出手段)
13 表示制御信号送出回路
1 Display screen (display section)
2 Display control unit (display control means)
3 Display panel 4 Flashing drive circuit 5-1 to 5-4 Display panel group 6-1 to 6-4 Reception circuit 7 Signal line 7a Display control signal line 7b Downstream signal line 7c Upstream signal line 8 Illuminance sensor (illuminance detection means)
10 Temperature sensor (temperature detection means)
13 Display control signal transmission circuit

Claims (4)

プリント基板上に発光体を配列した表示パネルを複数備え、表示パネルの発光体を選択的に点滅することで文字や映像を発光表示する表示部と、前記発光体の点滅制御を行う表示制御手段とを備える表示装置において、
前記表示部近傍の照度を測定する照度検出手段と、
前記表示制御手段の内部に備えられ、前記表示部の発光体を点滅制御するための表示制御信号を前記表示部に出力する表示制御信号送出回路と、
前記表示部に備える複数の表示パネルを所定数毎に直列接続して構成する表示パネル群と、
前記表示パネル群毎に設けられ、前記表示制御信号送出回路から出力される表示制御信号を受信する受信回路と、
前記受信回路で受信した表示制御信号に基づいて表示パネルに備える発光体を点滅駆動する点滅駆動回路とを備え、
前記表示パネル群毎に備える複数の前記受信回路を信号線により直列接続すると共に、前記照度検出手段を複数の前記受信回路の何れにも接続可能に構成し、照度検出手段が接続された受信回路に入力される照度検出結果に関する情報を全ての受信回路に伝達し、伝達した照度に基づいて各表示パネル群の発光表示輝度を切り換えることを特徴とする表示装置。
A display unit having a plurality of display panels in which light emitters are arranged on a printed circuit board, and selectively flashing the light emitters of the display panel to emit and display characters and images, and display control means for controlling blinking of the light emitters In a display device comprising:
Illuminance detection means for measuring the illuminance in the vicinity of the display unit;
A display control signal sending circuit that is provided inside the display control means and outputs a display control signal for controlling blinking of the light emitter of the display unit to the display unit;
A display panel group configured by connecting a plurality of display panels provided in the display unit in series for each predetermined number;
A receiving circuit that is provided for each display panel group and receives a display control signal output from the display control signal sending circuit;
A blinking drive circuit that blinks and drives a light emitter provided in a display panel based on a display control signal received by the receiving circuit;
A plurality of receiving circuits provided for each display panel group are connected in series by signal lines, and the illuminance detecting means is configured to be connectable to any of the plurality of receiving circuits, and the illuminance detecting means is connected to the receiving circuit. A display device characterized in that information relating to the illuminance detection result input to the display panel is transmitted to all receiving circuits, and the light emission display luminance of each display panel group is switched based on the transmitted illuminance.
請求項1記載の表示装置において、前記受信回路同士を接続する信号線を、前記表示制御信号送出回路から入力された表示制御信号を前段の受信回路から後段の受信回路へ向けて転送する表示制御信号ラインと、受信回路同士の間で前段から後段へ向けて信号を送る下り信号ラインと、受信回路同士の間で後段から前段へ向けて信号を送る上り信号ラインとで構成し、前記照度検出手段が接続された受信回路は、前記照度検出手段による検出結果を下り信号ライン及び上り信号ラインを用いて他の受信回路に伝達することを特徴とする表示装置。   2. The display device according to claim 1, wherein a display line for transferring the display control signal input from the display control signal sending circuit to the receiving circuit at the subsequent stage is transferred to the signal line connecting the receiving circuits from each other. The illuminance detection is composed of a signal line, a downstream signal line that sends a signal from the front stage to the rear stage between the receiving circuits, and an upstream signal line that sends a signal from the rear stage to the front stage between the receiving circuits. The receiving circuit to which the means is connected transmits the detection result by the illuminance detecting means to another receiving circuit using the down signal line and the up signal line. 請求項1または2何れか記載の表示装置において、表示部の内部温度を検出する温度検出手段を設けると共にこの温度検出手段を複数の前記受信回路の何れにも接続可能に構成し、温度検出手段が接続された受信回路に入力される検出温度が予め設定した所定温度を超える異常状態にあるか、あるいは所定温度以下の正常状態にあるかを判断して、判断した表示部温度状態に関する情報を全ての受信回路に伝達し、伝達した表示部温度状態に基づいて各表示パネル群の発光表示輝度を切り換えることを特徴とする表示装置。   3. The display device according to claim 1, further comprising temperature detection means for detecting an internal temperature of the display unit, and configured to connect the temperature detection means to any of the plurality of receiving circuits. It is determined whether the detected temperature input to the receiving circuit to which the is connected is in an abnormal state exceeding a predetermined temperature set in advance or in a normal state equal to or lower than the predetermined temperature, and information on the determined display unit temperature state is obtained. A display device that transmits to all receiving circuits, and switches the light emission display luminance of each display panel group based on the transmitted display unit temperature state. 請求項3記載の表示装置において、前記照度検出手段が接続された前記受信回路は前記照度検出手段による検出結果を基に表示部近傍の明るさが昼間状態であるか夜間状態であるかを判断し、昼間状態と夜間状態とに応じて連続したハイレベルの電位または連続したローレベルの電位を前記下り信号ライン及び上り信号ラインに出力し、同時に、前記温度検出手段による検出結果を基に判断した表示部内部温度が正常状態の時は前記電位の連続ハイレベルまたは連続ローレベルを維持し、表示部内部温度状態が異常状態の時は前記電位の連続ハイレベルまたは連続ローレベルから、前記表示制御信号送出回路から出力される表示制御信号に含まれる基準パルス信号に同期して反転するパルスを前記下り信号ライン及び上り信号ラインに出力することを特徴とする表示装置。   4. The display device according to claim 3, wherein the receiving circuit to which the illuminance detection unit is connected determines whether the brightness in the vicinity of the display unit is a daytime state or a nighttime state based on a detection result by the illuminance detection unit. Output a continuous high-level potential or a continuous low-level potential to the downstream signal line and upstream signal line according to the daytime state and the nighttime state, and at the same time, judge based on the detection result by the temperature detection means When the display unit internal temperature is in a normal state, the potential is maintained at a continuous high level or continuous low level, and when the display unit internal temperature is in an abnormal state, the display is started from the continuous high level or continuous low level. A pulse that is inverted in synchronization with the reference pulse signal included in the display control signal output from the control signal transmission circuit is output to the downstream signal line and the upstream signal line. Display device characterized by.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5618391B2 (en) * 2013-04-10 2014-11-05 株式会社ハートス Image processing light emission control system, image processing program for light emission display, and image light emission display method
WO2019004571A1 (en) * 2017-06-26 2019-01-03 Lg Electronics Inc. Display device and multi display device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002108286A (en) * 2000-09-28 2002-04-10 Nichia Chem Ind Ltd Display device and driving control system
WO2006103862A1 (en) * 2005-03-29 2006-10-05 Matsushita Electric Industrial Co., Ltd. Image display and image displaying method
JP2009216809A (en) * 2008-03-07 2009-09-24 Sharp Corp Display device, multi-display system, multi-display method, and program to be performed by computer in order to achieve multi-display method
JP2010181763A (en) * 2009-02-09 2010-08-19 Mitsubishi Electric Corp Display device and display system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002108286A (en) * 2000-09-28 2002-04-10 Nichia Chem Ind Ltd Display device and driving control system
WO2006103862A1 (en) * 2005-03-29 2006-10-05 Matsushita Electric Industrial Co., Ltd. Image display and image displaying method
JP2009216809A (en) * 2008-03-07 2009-09-24 Sharp Corp Display device, multi-display system, multi-display method, and program to be performed by computer in order to achieve multi-display method
JP2010181763A (en) * 2009-02-09 2010-08-19 Mitsubishi Electric Corp Display device and display system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5618391B2 (en) * 2013-04-10 2014-11-05 株式会社ハートス Image processing light emission control system, image processing program for light emission display, and image light emission display method
WO2019004571A1 (en) * 2017-06-26 2019-01-03 Lg Electronics Inc. Display device and multi display device
US10409544B2 (en) 2017-06-26 2019-09-10 Lg Electronics Inc. Display device and multi display device

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