With the rapid development of electronic products, more and more industries will use LCD, such as: 1. Medical industry LCD: electronic infusion pump, vital capacity tester, asthma nebulizer, vision correction instrument. 2. LCD screen of instrument industry: water meter, electricity meter, natural gas meter, gas meter, heating meter, temperature meter, humidity meter, etc. 3. LCD screen of household appliance industry: air purifier, water purifier, induction cooker, microwave oven, electric cooker, washing machine, refrigerator 4. LCD screen of vehicle industry: vehicle instrument, electronic water temperature meter, electronic oil meter Electronic pressure gauge 5. LCD screen of industrial control industry: opening meter, tachometer, turn meter, voltmeter, ammeter 6. LCD screen of financial and tax control industry: U shield, small POS machine, cash counting machine, cash detector, Golden Tax plate 7. LCD screen of health physiotherapy industry: foot bath, Manicure machine, low frequency therapeutic instrument, massage chair, moxibustion instrument 8. LCD screen of beauty and hairdressing industry: perm clip, face slimming instrument LCD screen of power tool industry: electric wrench, impact drill, tensiometer, electric zipper saw 10. LCD screen of science and education instrument industry: vernier caliper, infrared range finder, electronic curriculum, classroom clock 11. LCD screen of maternal and infant products industry: milk heater, sucking device, temperature measuring bottle, intelligent water cup, car water heater Car refrigerator 12. Agricultural tools industry LCD: soil moisture tester, nitrogen, phosphorus and potassium tester, automatic irrigation system, pH tester, Sugar Meter 13. Fire alarm industry LCD: Fire induction alarm 14. Photographic equipment industry LCD: SLR camera status