公开(公告)号：KR101267259B1

公开(公告)日：2013-05-24

申请号：KR1020110115519

申请日：2011-11-08

Applicant: (주)펨트론

Inventor： 박노중 ,  권유복

IPC: G01R27/26 ,  G01R23/02 ,  G01R19/165 ,  G06F3/041

Abstract: 정전식터치스크린패널검사장치에관한기술이개시된다. 본발명의일 실시예에따른 PLL을이용한정전식터치스크린패널검사장치는, 고유정전용량에의해제1 주파수신호를생성하고, 정전식터치스크린패널의 ITO 센서전극간 정전용량과상기고유정전용량의합성정전용량에의해제2 주파수신호를생성하는주파수신호생성부; 상기주파수신호생성부에의해생성된신호를입력신호로하여 VCO의출력주파수를상기입력신호의주파수에동화시키는 PLL 회로부; 및상기 PLL 회로부에상기제1 주파수신호가입력된후 상기제2 주파수신호가입력되는경우발생하는상기 VCO의출력전압변화량을소정기준변화량과비교하여상기정전식터치스크린패널의양품여부를판별하는양품판별부를포함함으로써, 검사장비의범용성을확보하고검사결과의정확성및 신뢰성을개선한다.

公开(公告)号：KR1020130050458A

公开(公告)日：2013-05-16

申请号：KR1020110115519

申请日：2011-11-08

Applicant: (주)펨트론

Inventor： 박노중 ,  권유복

IPC: G01R27/26 ,  G01R23/02 ,  G01R19/165 ,  G06F3/041

CPC classification number: G01R27/2623 ,  G01R19/16504 ,  G01R23/02 ,  G06F3/0412 ,  G06F3/044

Abstract: PURPOSE: An apparatus for testing an electrostatic touch screen panel using a PLL(Phase Locked Loop) and a method thereof are provided to assure generality of a test equipment by testing the electrostatic touch screen panel using a PLL, and to improve robustness and test reliability as to electrical and mechanical impact and external environmental change. CONSTITUTION: A frequency signal generation part(110) generates a first frequency signal by a generic electrostatic capacity, and generates a second frequency signal by synthesized electrostatic capacity of generic electrostatic capacity and electrostatic capacity between ITO(Indium Tin Oxide) sensor electrodes of the electrostatic touch screen panel. A PLL circuit part(120) synchronizes an output frequency of a VCO(Voltage Controlled Oscillator) to a frequency of an input signal by inputting a signal generated by the frequency signal generation part as the input signal. A non-defection judgment part(130) judges non-defection of the electrostatic touch screen panel by comparing the amount of output voltage change of the VCO with amount of reference change. [Reference numerals] (110) Frequency signal generation part; (116) Frequency oscillation part; (120) PLL circuit part; (122) Phase detection part; (124) Voltage control oscillation part; (126) Divider part; (130) Non-defection judgment part; (132) A/D converter(24bit); (134) Voltage change comparison part; (136) Frequency comparison part; (140) Monitoring part

Abstract translation: 目的：提供一种使用PLL（锁相环）测试静电触摸屏面板的装置及其方法，以通过使用PLL测试静电式触摸屏面板，提高测试设备的通用性，并提高其鲁棒性和测试可靠性 关于电气和机械的影响以及外界的环境变化。 构成：频率信号产生部分（110）通过一般静电电容产生第一频率信号，并通过静电电容的ITO（氧化铟锡）传感器电极之间的通用静电电容和静电电容的合成静电电容产生第二频率信号 触摸屏面板。 PLL电路部分（120）通过输入由频率信号生成部分生成的信号作为输入信号，使VCO（压控振荡器）的输出频率与输入信号的频率同步。 无缺陷判断部（130）通过将VCO的输出电压变化量与参考变化量进行比较来判断静电式触摸屏面板的不良情况。 （附图标记）（110）频率信号生成部; （116）频率振荡部分; （120）PLL电路部分; （122）相位检测部; （124）电压控制振荡部分; （126）分隔件; （130）非违约判决部分; （132）A / D转换器（24bit）; （134）电压变化比较部; （136）频率比较部分; （140）监控部分