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Display device, its pressing key set and method of active ating displaying device

A technology of a display device and a key group, which is applied to the input/output of user/computer interaction, instruments, electrical digital data processing, etc., and can solve the problems of display device structure damage, failure, and hole structure damage

Inactive Publication Date: 2007-04-18
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking the projection device as an example, because the unit price is not low, and it is easy to be exposed to an environment with a high risk of theft, in order to prevent the projection device from being stolen, the known method of the projection device manufacturer is to lock the projection device with a king lock. However, this kind of hole structure is very easy to be damaged and fails, so its anti-theft effect is very unsatisfactory
[0003] To sum up, the known technologies used to prevent display devices from being stolen often face the dilemma of structural damage and failure

Method used

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  • Display device, its pressing key set and method of active ating displaying device
  • Display device, its pressing key set and method of active ating displaying device
  • Display device, its pressing key set and method of active ating displaying device

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Embodiment Construction

[0026] An embodiment of the present invention is shown in FIG. 1 and FIG. 2 , which is a projection display 1 . The projection display 1 includes a host 11 and a detachable key group 12 . The host 11 includes a processor 101 , a memory 103 and an interface 105 . When the projection display 1 is connected to a power source, the processor 101 generates a first signal 100, which is a digital signal comprising a plurality of bits. The interface 105 is used for connecting to the detachable key group 12 . The key group 12 includes a signal generating device 107 , and the signal generating device 107 generates a second signal 102 in response to the first signal 100 . The memory 103 stores the first data. When the processor 101 receives the second signal 102 through the interface 105, the processor 101 determines whether the second signal 102 is correct according to the first data, so as to determine whether the projection display 1 can be activated normally.

[0027] As shown in FI...

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Abstract

The invention relates to display device. It includes processor, storage, interface, and key-press set which can be discretely connected with the interface, and signal generator. When the display device is connected with the power supply, the processor transmits the first signal to the interface, signal generator generates the second signal, and the processor judges whether the second signal is right or not by the data stored in the storage to determine whether the display device is normal active or not. The method used separable key-pres set to activate display device includes the following steps: connecting the display device to power supply; display device transmits the first signal to the interface; judging whether the second signal is right or not; if it is, activating the display device.

Description

technical field [0001] The present invention relates to a display device, a key set thereof and a method for activating the display device, in particular to a method and device for activating the display device by using a detachable key set. Background technique [0002] The forms of display devices commonly used in the market at present are quite diverse. Taking the projection device as an example, since the unit price is not low, and it is easy to be exposed to an environment with a high risk of theft, in order to prevent the projection device from being stolen, the known method of the projection device manufacturer is to lock the projection device with a king lock. However, such a structure with holes is easily damaged and fails, so its anti-theft effect is very unsatisfactory. [0003] To sum up, the known technologies for preventing theft of display devices often face the dilemma of failure due to structural damage. Therefore, it is an important issue for manufacturer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/00G06F3/02
Inventor 许茂山黄义翔
Owner DELTA ELECTRONICS INC
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