Actually no TV's rarely have LDR's rather they use infra red communication , and points that an image of each type of LDR is needed to clarify.
I won't invade Colin's thread, but will attend to this with a proper explanation of each, in a separate thread. On a side note even the European Commission
was misled by Macron representing the wrong type, and the EU became aware of their error subsequently supported Silonex to give encapsulated types exemption.
I covered this many years ago in a thread. But here is the wording from the European Commission
"Dear Mr Daly,
Thank you for your message.
The Commission Directive 2012/51/EU has enabled the use of cadmium in photoresistors for analogue optocouplers as an exemption from the ROHS directive. Therefore, indeed, the use of cadmium in photoresistors for analogue optocouplers is currently allowed as there are no other substitutes. We draw your attention in this context to the recitals of the Directive:
http://eur-lex.europa.eu/legal-conte...LEX:32012L0051
This new delegated Directive is based on the Recast of the RoHS Directive which entered into force in January 2013. The information relating to the recast of this Directive with the comments submitted during the public consultation is available on the following website of the Directorate-General for the Environment:
http://ec.europa.eu/environment/wast...e/index_en.htm
If you wish to voice your opinion on waste management issues and changes to the EU legislation, we invite you to consult the public consultations webpage on DG Environment:
http://ec.europa.eu/environment/consultations_en.htm
We hope you find this information useful. Please contact us again if you have other questions.
With kind regards,
EUROPE DIRECT Contact Centre
http://europa.eu - your shortcut to the EU!