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Optical locator used for input device and its driving method

An input device and light positioning technology, applied in the input/output process of data processing, instruments, static indicators, etc., can solve the problem that the light pen affects the continuous ability of mobile use

Active Publication Date: 2011-09-14
HANNSTAR DISPLAY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the power consumption of the light pen will indeed affect the continuous ability of mobile use, so how to design a more power-saving light pen has become an important issue

Method used

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  • Optical locator used for input device and its driving method
  • Optical locator used for input device and its driving method
  • Optical locator used for input device and its driving method

Examples

Experimental program
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Embodiment Construction

[0018] image 3 is a schematic diagram of the present invention using the light positioner to operate the input device. The user 80 can hold the light locator 32 and click commands or write text on the input device 31 (such as a touch panel), and the input work can be completed through the blinking light source 321 generated by the light locator 32 . The flickering period of the flickering light source 321 is synchronized with the basic clock cycle (clock cycle) of the system signal of the input device 31, and the flickering cycle of the flickering light source 321 and the basic clock cycle of the system signal of the input device 31 are multiples of each other. The clock period is obtained by transmitting a clock signal, a vertical synchronization start signal (verticalsynchronization start signal; STV) or a gate pulse signal (gate pulse signal; CPV) from the input device 31 to the signal receiving interface of the optical positioner 32 via the signal line 33, and Adjust acco...

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PUM

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Abstract

An optical locator used in an input device comprises a signal receiving interface and a luminous element. The signal receiving interface is used for receiving the system signal from the input device. The luminous element can produce flickering light source. The flickering cycle of the flickering light source keeps pace with the cycle of a reference clock of the system signal. The ration of the flickering cycle of the flickering light source and the reference clock reference of the system signal is a whole number.

Description

technical field [0001] The present invention relates to an optical locator for an input device and a driving method thereof, in particular to an optical locator for a display panel with a touch function and a method for driving the optical locator to generate a flashing light source. technical background [0002] In recent years, liquid crystal display panels have been widely used as display devices in various electronic products, such as mobile phones, personal digital assistants, notebook computers and tablet computers. The liquid crystal display panel includes an array substrate and a driving circuit, and pixels are arranged on the substrate at intersections between a plurality of scanning lines and a plurality of signal lines, and the driving circuit is used to drive the scanning lines and the signal lines. [0003] On the other hand, driven by the demand for products emphasizing humanized design, input or touch display devices are undoubtedly the best choice to meet thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/033G06F3/038G06F3/042G02F1/133G06F3/0354
Inventor 陈柏仰杨界雄
Owner HANNSTAR DISPLAY CORPORATION
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