Raspberry Pi 7" capacitive touch screen,
He 7-inch capacitive touch screen module hian air bonding process a hmang a, capacitive touch screen chu Glass Sensor+Glass cover lens structure a ni a, IC solution cypress chu 800*480 a ni a, LCD glass chu TN material a ni a, optical bonding process atan a tha lo hle a, emeded installation structure of resistance structure touch screen touch a touch a touch a touch a ni. Application hrang hrang a nei a. Touch interface hi USB nen supply theih a ni a, display interface pawh HDMI nen pek theih a ni a, chuta tang chuan plug and play hmangin Raspberry Pi ah connct theih a ni.
TPM 100 a ni. | Model number 100 a ni. | HX0701702 V2.0 a ni. |
Chhinchhiah | Grahowlet a ni a. | |
Lenzawng tehna | 7.0 inch a ni. | |
Operation temperature 1000 a ni. | -20℃- 70℃a ni. | |
A dahna hmun . | -30℃- 80℃a ni. | |
Outline dimension 1000 a ni. | 165.00(w)x100.00(h)x7.73(d) mm 1000 a ni. | |
En theihna hmun . | 154.88(W)X{{1}(h) mm 1000 a ni. | |
Active na hmun . | 154.08(w)x85.92(h) mm ah a awm a. | |
Support system hrang hrang . | Windows/Android/Linux etc. ah te a awm a. | |
Warranty a awm em? | Kum 1 . | |
CTP a ni. | Interface chi hrang hrang . | IIC 10 a ni. |
Material/structure . | G+G | |
Controller IC 1000 a ni. | Cypress 100 a ni. | |
touch points . | Point 10 a hmu a ni. | |
Transparency 1000 a ni. | ≥85% a ni. | |
Surface Hardness . | ≥6h a ni. | |
Power supply voltage a ni a, a hlawhtling hle. | 2.8V - 3.3V | |
tft a ni. | Thutlukna | 800x480 |
Interface chi hrang hrang . | RGB a ni a. | |
Luminance 1000 a ni. | 300 CD/M2 a ni. | |
A angle en theihna . | 70/70/50/70 |
Functional characteristics 1.1.
Custom service .
Service rintlak tak a ni .
Packing emaw shipping emaw .
Technical zawhna .
Q: Multi-touch tih theihna tur capacitive touch screen principle chu eng nge ni?
A: Kut zungtang hian capacitive screen a khawih chuan touch point bula electrode pahnih inkara coupling a nghawng a, chu chuan electrode pahnih inkar capacitance a thlak danglam a ni. Mutual capacitance an hmuh chuan lateral electrode te chuan sequentially emit excitation pulse signals an tichhuak a, longitudinal electrode zawng zawng chuan a rualin signal an dawng vek a, chutiang chuan lateral leh longitudinal electrodes inkar zawng zawng capacitance value te chu an hmu thei a, chu chu pahnih - touch screen pumpui capacitance a ni. Touch screen-a -dimensional capacitance change data pahnih atanga a lan dan chuan touch point tinte coordinate chu chhut theih a ni. Chu chu, multi-point coordinate tak tak chu multi-Touch realise turin chhut theih a ni;
Q: Tuna kan hman mek capacitive screen chungchang hi power supply interference problem hi a na hle a. Power supply inrawlhna tihbo nan eng nge kan tih ang? Scanning frequency tih loh chu power supply-a noise frequency awm loh nan signal- to-Noise ratio of the screen? Kawng dang a awm em?
A: Tuna case zawng zawng atanga kan hmuh hian power supply interference hi large-size TP (7inch emaw a chunglam) ah a innghat ber a, a hnuaia solution te hi kan nei a ni:
(1) Power supply tha tak thlang rawh. Hei hi a pawimawh hle a, thuneihna tihbuai dan chinfelna kawng tha ber leh bulpui ber a ni a;
(2) Frequency hopping tih a ni. Spectrum Analyzer hmangin adapter-a common mode interference strength a tlemna hmun zawng la, chutah chuan TX scan frequency chu software setting hmangin he area-ah hian set la, chu chuan interference chu a control thei ang. Full frequency band-a inrawlhna a awm chuan adapter chu chhuahsan a tha;
(3) Signal to noise ratio siam that. TP design hmasa berah (7.0inch emaw a chunglam emaw) RX signal channel atana low-impedance surface-rent material hman leh double-sided trace design hman dan tur ngaihtuah rawh. 10K chhunga channel resistance zawng zawng control tum la, chu chuan power supply interference chu a control thei ang. ;
(4) Charger pawh thlak theih a ni a, algorithm filtering tihpun a ni a, anti-interference performance chak tak nei cypress, eeti, ILI scheme te pawh hman theih a ni bawk.
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