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Displaying apparatus and restoring method when turn-on there is abnormality

A technology of a display device and a recovery method, which is applied to lighting devices, static indicators, electric lamp circuit arrangements, etc., can solve problems such as abnormality of the driving unit 101, inability to transmit the fourth signal 108, abnormality, etc.

Inactive Publication Date: 2008-08-13
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, reactivating the light source 107 may also cause the peripheral circuits to be affected by high voltage interference again, so that the abnormal state appears again
Especially when the drive unit 101 is abnormal but the light source 107 is activated normally, reactivating the light source 107 is a superfluous step.
In addition, sometimes the driving unit 101 will be seriously abnormal due to high-voltage interference, so that the correct fourth signal 108 cannot be transmitted, and the processing unit 111 will have no way of knowing the state of the driving unit 101

Method used

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  • Displaying apparatus and restoring method when turn-on there is abnormality
  • Displaying apparatus and restoring method when turn-on there is abnormality
  • Displaying apparatus and restoring method when turn-on there is abnormality

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Embodiment Construction

[0038] An example of the present invention is figure 2 Shown is a projection display device 21 that can simultaneously receive an analog RGB signal 200 , a DVI signal 202 , an AV signal 204 and a radio frequency signal 206 , and select one of the signals to display an image after processing. The projection display device 21 includes a front-end signal processing unit 201 , a driving unit 203 and a processing unit 205 . When the projection display device 21 is powered on, the front-end signal processing unit 201 selects one of the analog RGB signal 200 , the DVI signal 202 , the AV signal 204 and the radio frequency signal 206 , and outputs the front-end signal 208 after adjusting its resolution and display frequency. After receiving the front-end signal 208 , the driving unit 203 outputs a driving signal 210 to display an image, and the driving signal 210 is also transmitted to the processing unit 205 . The processing unit 205 determines whether the driving unit 203 operates...

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Abstract

A display unit contains driving unit and processing unit. If driving unit operates abnormal in starting up, then processing unit according to driving unit output driving signal to generate control signal, driving unit responding control signal reset and re-outputting driving signal. A recovering method used for display unit starting up abnormal contains to generate two signals, one for reactivating light source, another for reset driver element and re-outputting driving signal.

Description

technical field [0001] The present invention relates to a display device and its recovery method for abnormality when starting up, more specifically, to a projection display device and its recovery method for abnormality when starting up. Background technique [0002] Due to the maturity of projection display technology, the projection devices currently on the market can receive computer signals (such as analog RGB signals, DVI signals), general video signals (AV signals) and / or TV signals (radio frequency signals) individually or integratedly, and then Its signal is converted into a projected picture. Take a projection display device that can simultaneously receive analog RGB signals, DVI signals, AV signals, and radio frequency signals as an example. It usually includes a front-end signal processing circuit. The front-end signal processing circuit includes an analog / digital converter to process analog RGB signals, digital Differential signal receiver to process DVI signal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G09G3/36H05B37/02H04N5/74
Inventor 张健根杨忠义刘宝磬
Owner DELTA ELECTRONICS INC