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Light emitting element matrix panel input device

A light-emitting device and array panel technology, applied in the input/output process of data processing, input/output of user/computer interaction, instruments, etc., can solve problems such as insufficient brightness, interference, and poor reception

Pending Publication Date: 2020-06-16
GENERALPLUS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, due to insufficient brightness, it is often interfered by ambient light, resulting in poor reception

Method used

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  • Light emitting element matrix panel input device
  • Light emitting element matrix panel input device
  • Light emitting element matrix panel input device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] figure 2 It is a circuit diagram of an input device for a light-emitting device array panel according to a preferred embodiment of the present invention. Please refer to figure 2 , the light emitting device array panel input device includes a light emitting device array 201 , a control circuit 202 and a receiving device 203 . The light-emitting device array 201 in this embodiment takes 16×16 light-emitting devices 204 as an example, and the light-emitting device array 201 includes 16 Y-axis input terminals and 16 X-axis input terminals. The control circuit 202 can be implemented with a microprocessor and peripheral circuits. The control circuit 202 has a total of 36 input and output ports, which are respectively coupled to the 16 Y-axis input terminals and the 16 X-axis input terminals.

[0045] In this embodiment of the receiving device 203 , a pen-shaped light receiver is taken as an example, and the tip of the pen has a device capable of receiving light. In this...

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PUM

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Abstract

The invention relates to a light emitting element matrix panel input device, a light emitting element matrix panel includes M*N light emitting elements, and includes M first axis input terminals and Nsecond axis input terminals. A light emitting element matrix panel input method includes: simultaneously outputting M first axis coordinate signals to the corresponding M first axis input terminals in a first axis signal time period, wherein the first axis coordinate signals carry different first axis digital information; simultaneously outputting N second axis coordinate signals to the corresponding N second axis input terminals in a second axis signal time period, wherein the second axis coordinate signals carry different second axis digital information; and illuminating the (I, J) light emitting element when a receiving device is close to the (I, J) light emitting element, and the Ith first axis digital information and the Jth second axis digital information are decoded.

Description

technical field [0001] The invention relates to a technology of a light-emitting device array panel, and more specifically, the invention relates to an input device for a light-emitting device array panel. Background technique [0002] The light-emitting diode tablet is generally an N×M light-emitting diode array coupled with a photosensitive pen. When inputting a pattern, the N×M LED array will output light signals row by row and column by column. Such as figure 1 as shown, figure 1 It is a schematic diagram of the coordinate detection method of the light-emitting diode tablet in the prior art. Please refer to figure 1 First, the equivalent circuit of the photosensitive pen 11 is shown in the figure, which has a photoresistor 101, and the resistance of the photoresistor is directly related to the intensity of light. As the light intensity increases, the resistance decreases; as the light intensity decreases, the resistance increases. Assume that the photosensitive pen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0354G06F3/038G06F3/03
CPCG06F3/03545G06F3/0386G06F3/0317G06F3/04162G06F3/04166G06F3/0428
Inventor 罗立声
Owner GENERALPLUS TECH INC