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Dr. M.G.R. EDUCATIONAL AND RESEARCH INSTITUTEDr. M.G.R. UNIVERSITY(Estd. Under Sec. (3) of UGC Act. 1956.)1771650222885MINI PROJECT ON PHOTOSENSITIVE  LCD MODULE CUM VISOR/DISPLAYSUBMITTED BY:-RISHI RAJ SAIKIA  (081071101123)GAUTAM KAUSHIK DUTTA (081071101176)   K. BIKRAM SINGHA (081071101184)<br />ABSTRACT<br />In the proposed paper we are going to demonstrate an advance controlling of transparent LCD.The system commencing this operation is named as PHOTO-SENSITIVE LCD MODULE CUM VISOR/DISPLAY (PSLVD). With the help of PSLVD a transparent LCD can be used both as light controlling visor as well as a multidisplay. This device on visor and multidisplay mode is controlled only by two separate comparator circuitry.<br />The LCD acts as a filter according to the light intensity in visor mode and as a intelligent display solution to mobile screens.<br />The above LCD can also used be switched into a display which will be readable during high sunlight also which will be done by active backlight adjustments and contrast adjustment. <br />The main blocks of the circuitry are-<br />,[object Object]
 Controller circuit
 Current limiting resistors.The advantage of the above system will be non hazardous driving(on application of LCD as windscreen), it can be used as window panes in corporate offices which will act as automatic llight controlling glass and in night time for advertisement purpose. <br />INTRODUCTION<br />In todays world the technology is changing rapidly evrything becoming more sophisticated and simple electric equipments are becoming electronic as they are more reliable and long lasting. In every aspect the things are changing rapidly electric to electronic even digital eg- the ignition of a car engine to the speed control of a fan. A smart car with the mentioned technology will have a better perfomance in other words driving will be less tidious and in hot weather the bright sun will not be a problem . A mobile screen implementing this technology will give a better performance .<br />                    On implementation of PSLVD in mobiles , will make the display readable under the direct sun also. On application of this technology in Smart-Home will provide a automatic light controlled living room and thus making it more comfortable and cool in hot sunny weathers , also adding to the list, an economic way of keeping the room cool.<br />BLOCK DIAGRAM<br />             COMPONENTS:- <br />,[object Object]
LDR(4 KOHM in ambient light)  - 2Nos.
IC741(op-amp)  - 4Nos.
RESISTORS (1KOHM ) – As per requirement

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