TFT Kɔla Kyerɛkyerɛ: Nkitahodi Ahofadi fi 0.69 kosi 10.1 Inches

Atwerɛ

February 25, 2024

LCD a ɛwɔ kɔla biako di ho dwuma sɛ ebia biribi da adi anaa. TFT di ho dwuma sɛ ebia wobetumi de adi dwuma anaa. Nsonsonoe no da adi wɔ mfomso dodow, sɛnea adwumayɛfo bi kenkan graph ntɛmntɛm, ne sɛnea ade no te sɛ nea ɛyɛ nnɛyi de no mu.

Efi Nea Wotumi Hu So Kosi Nea Wotumi De Di Dwuma

LCD a ɛwɔ kɔla biako di ho dwuma sɛ ebia biribi da adi anaa; TFT bi siesie sɛ ebia wobetumi de adi dwuma anaa. Active matrix ma pixel biara n’ankasa drive, a ɛma nsonsonoe, mmuae ne kɔla count kɔ soro denam nhyehyɛe a ɛyɛ kɛse so, na ɛma icons, charts, Chinese layout a edi mũ ne touch nyinaa yɛ yiye. Onipa ne mfiri ntam nkitahodi no fi panel a ɛkyerɛ nsɛm nkyerɛwde abien so kɔ mfɛnsere a ebetumi ayɛ nkitahodi bi so.

Nsonsonoe no si ade no so tẽẽ. Wɔn a wɔde di dwuma no gyae dense codes a wɔkyere gu wɔn tirim, mfomso dodow so tew, afuw mu adwumayɛfo kenkan graph ahorow ntɛmntɛm sen akontaahyɛde ahorow, na ade no te sɛ nea ɛyɛ nnɛyi de efisɛ etumi twetwe mfonini. Sɛ wosɛe sika kakra wɔ hardware ho a, ɛtɔ anammɔn nsakraeɛ nyinaa wɔ osuahu gyinabea — ɛno nti na kɔla ntam nkitahodiɛ rekɔ fam afiri nneɛma a ɛkorɔn so akɔ adeɛ titire no mu.

Paw Interface no denam System so, Ɛnyɛ Fashion so

TFT interface selection te sɛ gearbox kakra: ɔkwan biara nni hɔ a eye sen biara, nea ɛne no hyia nkutoo. MCU interface no de pin kakraa bi na edi dwuma na ɛnyɛ den sɛ wobɛka kar, ɛfata MCU nketewa ne nea ɛnyɛ ahoɔhare kɛse a wɔde di dwuma, a ɛka a wɔbɔ sɛ w’ankasa wobɛhwɛ frame buffer so. Parallel RGB de kɔ ntɛmntɛm na ɛfata video ne animation, nanso ɛde pin pii di dwuma na ɛnyɛ papa wɔ mmirikatu tenten mu. SPI yɛ sparsest — nsa kakraa bi nkyerɛwde di kɔla panel ketewa bi ho dwuma — a anohyeto refresh. LVDS ne MIPI tumi gyina ntwitwiridii ne mmirikatu tenten ano, na ɛfata akɛse ne mmeae a anyinam ahoɔden dede wɔ hɔ.

Interface paw fi ase fi nea wo host betumi de ama, routing space dodow a wowɔ wɔ mu, ne content dodow a ɛsɛ sɛ wosan yɛ foforo. Settle saa abiɛsa no na interface no kɛse no ara settled. Yɛn ano aduru ma kwan ma wɔyɛ nsakrae wɔ interface, voltage ne pin nkyerɛase mu ma ɛne nhyehyɛe no hyia, enti enhia sɛ wo nhyehyɛe no gye katalog fã bi.

0.69 kosi 10.1 Inches wɔ Platform Baako so

Span a ne kɛse trɛw wɔ mfaso ankasa. Sɛ wo product line span compact handheld devices ne interactive panels, na display modules no fi ademafoɔ baako hɔ a, ɛnde draiver code, nhyiamu nhyehyɛeɛ ne adetɔnfoɔ no sohwɛ nyinaa yɛ baako, na mfiridwuma mu suahunu yɛ nea wɔtumi de di dwuma bio. Cross-supplier combination taa kyerɛ driver sets abien, inspection regimes abien ne akwan abien a wɔfa so yɛ adwuma.

0.69-inch compact color panels som mfiri nketewa ne nea wɔhyɛ; 2.4, 3.5, 4.3, 5.0 ne 7.0 inches kata nsa ne panel dwumadie titire so; 10.1 inches som nkitahodi interfaces ne nsɛm boards. Wobetumi de touch aka ho wɔ baabi a ɛho hia, na wobetumi ayɛ cover-lens ne backlight kɔla no sɛnea wɔpɛ. Saa kɛseɛ line yi kata display ahiadeɛ a ɛwɔ hardware nneɛma dodoɔ no ara mu a ɛnsesa supplier mid-stream.

Wɔntew Customization so Efisɛ Ɛyɛ Kɔla

Wɔtaa fa no sɛ kɔla panels yɛ standard-product gua, nanso customization space no sõ te sɛ monochrome. Size betumi ayɛ nea ɛnyɛ gyinapɛn, interface ne pin nkyerɛase di nhyehyɛe no akyi, FPC tenten ne cable exit akwankyerɛ di nhyiam akyi, backlight hyerɛn ne kɔla di nneɛma a atwa yɛn ho ahyia akyi, ɔhyew grade di site no akyi, na hwɛ akwankyerɛ di installation gyinabea akyi. Wobetumi akyerɛ touch technology (resistive anaa capacitive) ne cover-lens nhyehyɛe nso.

Wɔ nneyɛe mu no, ma yɛn nsusuwii, interface tebea, nhyiam kɛse, adwumayɛ tebea ne touch ahwehwɛde, na matching adwuma no yɛ nea ɔde ma. Yɛsan de ano aduru ne nsɛm a wɔafa aka wɔ nnɔnhwerew aduonu anan mu; parameters yɛ typical catalog values ​​na customization di wo design akyi. Wobetumi ayɛ kɔla panels ama mfonini nso, ɛnyɛ sɛ wɔbɛpaw afi katalog mu kɛkɛ — a ɛkora bere kɛse so wɔ nnwuma nketewa mu.

Nkitahodi no akyi: Frame Buffer ne Memory

Interface choice nya adwene dodoɔ no ara, nanso anohyetoɔ a ɛka TFT adwuma bi ankasa ne frame buffer. RGB565 display a ne kɛse yɛ 240 by 320 hia bɛyɛ kilobytes 150 wɔ frame biara mu. Sɛ host microcontroller no wɔ RAM sua sen saa a, design no kɔ fam kɔ ​​kɔla bun ketewa bi mu, ɛde panel no fa serial interface a enhia local frame buffer so, anaasɛ ɛde abɔnten memory ne controller a ɛhwɛ refresh no so ka ho. Eyi a wobesi ho gyinae bere a wɔahyehyɛ ɔmansin no awie no nyɛ anigye; ho gyinaesi wɔ bere a wɔpaw no yɛ telefon so frɛ.

Refresh rate ne no nso di nkitaho. Parallel anaa RGB interface pia frames ntɛmntɛm nanso ɛgye MCU bandwidth pii; SPI hwɛ sikasɛm mu kɔsi sɛ wobɛbu transfer time wɔ target frame rate na wobɛhunu sɛ processor no nni berɛ biara a aka ama biribi foforɔ biara. Yɛde interface no kɛse to host controller no RAM ne clock so, na yɛka frame rate a wobetumi anya wɔ proposal no mu sen sɛ yebegyaw no ma wɔahu bere a wɔde reba no.

Interface no a wobɛpaw no na ɛkyerɛ baabi a MCU no Gyae

Akuw pii paw MCU kan na screen no paw nea ɛto so abien, na sɛ wɔdan nhyehyɛe no a, ɛma nneɛma a wobetumi apaw no yɛ ketewaa ntɛm ara. RGB ne LVDS/MIPI interfaces hwehwɛ sɛ host no kura display controller a ɛne no hyia; SPI yɛ amansan nyinaa de nanso frame-rate anohyeto. Bere a wɔasiesie MCU no akyi nkutoo na ɛbɛdaa adi sɛ botae refresh rate no ntumi nkɔ so, anaasɛ pin dodow no yɛ tiaa, na nhyehyɛe no kɔ akyi.

Nnyigyei nhyehyɛe no ne sɛ wobesiesie ɔyɛkyerɛ botae ahorow no afi afiri ahwehwɛde ahorow mu — frame rate, resolution, color depth, sɛ ebia touch ho hia — na wɔanya interface ne MCU afi wɔn mu. Wɔ nneɛma a emu nsɛm yɛ icons ne text no, SPI anaa MCU interface wɔ module a ɛwɔ basic controller so no dɔɔso; curves, video previews ne dynamic charts hwehwɛ RGB anaa high-bandwidth interfaces.

Yɛhwehwɛ interface ne frame rate bom ne client no display content ne MCU platform, na yɛde nneɛma a wɔsusuu frame rates. Sɛ wosi so dua sɛnea ebetumi atu mmirika ntɛmntɛm ankasa ansa na wode wo ho ahyɛ gyinaesi bi mu a, ɛkwati MCU a wɔbɛsan apaw no round biako.

TFT LCM a Capacitive Touch ka ho: Nea Ɛsakra wɔ Interface no mu

Sɛ wode capacitive touch layer ka TFT LCM ho a, ɛsakra nneɛma abiɛsa a ɛboro panel no so. Nea edi kan ne anyinam ahoɔden ntam nkitahodi: ebia ɔyɛkyerɛ no da so ara yɛ RGB, SPI anaa MIPI, nanso touch controller no san ba I2C anaa SPI so sɛ mfiri a ɛto so abien, enti host no hia bɔs a ɛto so abien ne interrupt line a ɛto so abien. Nea ɛto so abien ne stack: cover glass, touch sensor, display ne optical bond, na interface biara a ɛda wɔn ntam no yɛ beae a bubble anaasɛ misalignment betumi ada adi. Nea ɛto so abiɛsa ne firmware — touch controller no hia n’ankasa nhyehyɛe na, sɛ wode gloved anaa wet-finger bedi dwuma a, n’ankasa tuning.

Eyi nso ne baabi a nsonsonoe a ɛda wɔn a wɔde nneɛma ma no ntam da adi. TFT LCD module a wɔde ma wɔ China a wotumi de ho to no so ankasa bɛsoma touch controller no I2C address, cover glass drawing, bonding specification ne sample a wanya nkwa wɔ temperature cycle mu, a wɔremmisa no mprenu. Biako a ɛyɛ aguadi nkutoo de panel datasheet no bɛkɔ na waka bo bi. Sɔhwɛ no bo yɛ mmerɛw: bisa touch configuration file no na hwɛ bere tenten a egye ansa na woadu.