OLED Microdisplays: Mfaso a Ɛma Ɛyɛ Ne Ho a Ɛwɔ 0.42–2.42 Inches

Atwerɛ

June 20, 2023

LCD mma hann mma; esiw ano nkutoo. OLED pixel bi ma n’ankasa de, enti hann akwankyerɛfo, diffuser, backlight driver ne wɔn ka, ne kɛse ne ne tumi nyinaa yera prɛko pɛ.

Yi Backlight no na Nneɛma Pii Di Akyi

LCD mma hann mma; esiw ano nkutoo, na ɛno nti na ehia sɛ wɔde kanea a ɛwɔ akyi no di dwuma no. OLED pixel bi ma n’ankasa de, enti hann akwankyerɛfo, diffuser films, backlight driver ne wɔn power budget nyinaa yera prɛko pɛ. Nea ɛyera wɔ wɔn ho ne ne kɛse, emu duru, tumi twetwe ne mmuae bere. Modules tumi kɔ akyiri boro milimita biako kakra, mfuw a ɛyɛ tumm no yɛ tuntum kronkron mmom sen sɛ ɛbɛyɛ fitaa a emu dɔ, sɛnea wohu fi nkyɛn no nsakra kɔla, na sɛ wosakra a, ɛmma biribiara nsɛe.

Wɔ afiri a wɔde batere na ɛyɛ adwuma fam no eyinom boaboa ano yɛ biribi a ɛho hia. A wearable a ɛhia sɛ wɔbɔ charge pɛnkoro anaa mpɛn pii da biara no, ɛkyerɛ tẽẽ denam display module no power draw so, bere a ne kɛse ne ne mu duru bɛn sɛ ɛyɛ gyinaesi wɔ aso-hyɛ ne aniwa ahwehwɛ nneɛma. Wɔn ho a wɔtow gu no nyɛ akatua wɔ saa akuw yi mu; ɛyɛ tebea a ɛsɛ sɛ wodi kan yɛ.

Sɛnea PMOLED ne AMOLED Kyekyɛ Adwuma no Mu

Wɔde mfiridwuma akwan abien no nyinaa redi dwuma wɔ saa akɛse yi mu. PMOLED (passive matrix) wɔ nhyehyɛe a ɛnyɛ den ne karka tẽẽ, scanning line by line ne pixel by pixel, a ɛfata display nketewa a ɛwɔ mu nsɛm a ɛnyɛ den koraa — koma-bɔ mfɛnsere, battery indicator, status icons. Nea anohyeto wom ne kɛse: bere a panel no nyin no, bere a ɛwɔ hɔ a wɔde bɛhyerɛn row biara no mia, hann no kɔ akyi, na scan nhama no da adi.

AMOLED (active matrix) wɔ TFT wɔ pixel biara akyi ma ankorankoro karka, a ɛboa resolution a ɛkorɔn, refresh a ɛkorɔn ne brightness uniformity a eye. Ano aduru a ɛho akokwaw wɔ hɔ wɔ 0.42 kosi 2.42 inch nyinaa mu, a ɛfata nneɛma a ɛwɔ interfaces a ɛyɛ den, animation anaa video. Ɛka a wɔbɔ no dɔɔso na karka no nso yɛ den. Saa range — 0.42 kosi 2.42 inches — yɛ pɛpɛɛpɛ band a akwan abien no nyinaa kata ahwehwɛde no so na wopaw denam content complexity so.

Nneɛma Bɛn na Ehia No Ankasa

Ɛsɛ sɛ wɔde afiri a wɔde yɛ nneɛma no na ɛyɛ sika a ɛsom bo a ɛwɔ ankasa mframa a wɔtow gu no so. Nneɛma a wɔhyɛ ne akwahosan a wɔhwɛ so ne asɛm a ɛda adi pefee: screen ketewa, batere-te nka, na mpɛn pii no ɛyɛ ade a ɛhyerɛn bere nyinaa. Nsa a wɔde di dwuma ne barcode scanner ahorow yɛ adwuma wɔ kanea a wɔadi afra mu na ehia sɛ wotumi kenkan owia hann ne anadwo dwumadi a ɛnyɛ anifuraefo nyinaa. Mfiri a wɔde hyɛ aso mu ne ahwehwɛ a nyansa wom no wɔ anohyeto a ɛyɛ den a ɛyɛ den ne emu duru. Nnwinnade akuwakuw a ɛwɔ nsɛnkyerɛnne a ɛhyerɛn bere nyinaa no betumi akɔ fam akodu ahoɔden a ɛba fam koraa wɔ mfuw a ɛyɛ sum a ɛkyerɛ nkyerɛwde kakraa bi pɛ mu.

Nea ɛne no bɔ abira nso yɛ nokware. Sɛ ade no yɛ afiri a wɔde di dwuma wɔ pon so a ɛwɔ ahoɔden a ɛyɛ den na ɛwɔ kɔla kɛse a, ɛda adi sɛ TFT LCD na eye sɛ wobɛtɔ. Microdisplay OLED mfaso no twe adwene si nsɛmfua anan mu: nketewa, ɛhyerɛn, ɛyɛ adwuma yiye, teateaa. Ɛtua ka wɔ application a ɛfata mu nkutoo.

Wɔayɛ Tumi a Ɛba Fam, Ɛnyɛ Nea Wɔka

Wide viewing angle ne self-emission ba ne structure no, nanso landing wɔn wɔ wo product no gye design a atwa ho ahyia: driver IC a ɛne resolution no hyia, FPC tenten ne pin nkyerɛaseɛ a wɔde asi hɔ denam space a ɛwɔ hɔ no so, partial-refresh strategy a wɔde twa refresh frequency, ne nna ne wake suban wɔ standby mu. Ankorankoro eyinom yɛ nketewa; sɛ wɔka bom a, wobetumi ayɛ batere nkwa nna ɔha biara mu aduasa.

Wobetumi asiesie eyinom nyinaa bere a wɔreyɛ customisation no. Yɛwɔ PMOLED ne AMOLED ano aduru nyinaa wɔ 0.42 kosi 2.42 inches, a ne kɛse, interface, voltage, hwɛ kwankyerɛ, FPC ne backlight nhyehyɛe a wotumi sesa ma ɛne nhyehyɛe no hyia; parameters yɛ typical catalog values ​​na customization di wo design akyi. Ka afiri no kratasin ne dwumadie tebea no pefee na nyansahyɛ no betumi ayɛ nea ɛteɛ bere a edi kan — a ɛho hia kɛse mpo ma adwuma bi a ɛpaw OLED maa tumi wɔ nea edi kan no mu.

Bere Nyinaa-On ne Brightness: Aboboano Ankasa Abien a Ɛwɔ Screen Nketewa So

Ahwehwɛde abien na ɛkyerɛ sɛ ebia PMOLED betumi ayɛ adwuma anaasɛ aduru no hia biribi foforo. Nea edi kan ne oprehyɛn a wɔyɛ no bere nyinaa. Dɔn a ɛhyerɛn bere nyinaa wɔ OLED so no ma piksel ahorow a ɛhyerɛn no nyin, na nea ɛhyew no yɛ nea ɛtra hɔ daa. Mitigations wɔ hɔ — sesa display gyinabea bere ne bere mu, dimming, sesa wɔ nhyehyɛe abien ntam — nanso ɛsɛ sɛ wɔyɛ no wɔ application no mu, ɛnyɛ retrofitted. Nea ɛto so abien ne sɛnea wotumi kenkan ade wɔ abɔnten. Wɔakyerɛ OLED hann wɔ piksel a ɛhyerɛn no nsusuwii pɔtee bi mu, na screen a ɛkyerɛ nneɛma fitaa a ɛyɛ den no ntumi nkura ne dodow a ɛsen biara; abɔnten so hann a etu mpɔn no yɛ asɛmti nɔma no fã ketewaa bi.

Wɔn baanu nyinaa yɛ nea wotumi sɔ hwɛ ansa na wɔde wɔn ho ahyɛ mu. Bisa hann no wɔ emu nsɛm dodow ankasa a woabɔ wo tirim sɛ wobɛda no adi no mu, na fa nhyehyɛe a ɛwɔ hɔ bere nyinaa no tu mmirika nnɔnhwerew ɔhaha kakraa bi na woahu sɛnea onyin no. Yɛde hann a wɔsusuu wɔ content mix a wɔakyerɛ no so ma sen sɛ yɛde katalog akontaabu no bɛma, na yebetumi ayɛ onyin nhwehwɛmu wɔ nhyehyɛe a ɛwɔ hɔ bere nyinaa so ansa na wɔasi ahyɛde no so dua.

Tumi a Ɛba Fam Fi Mmeae Abiɛsa, Ɛnyɛ Screen No Nko

OLED sikakorabea no yɛ nhyehyɛe, nanso tumi a ade no nya no fi nneɛma abiɛsa mu: emu nsɛm, refresh strategy ne drive parameters. Wɔ panel koro no ara so no, mfonini a ɛyɛ fitaa koraa ne standby screen a ne fã kɛse no ara yɛ sum no betumi ayɛ soronko mpɛn pii wɔ mprempren mu; dɔn a ɛhyerɛn bere nyinaa ne akyi kanea a wɔhwehwɛ no ma batere nkwa nna yɛ soronko koraa.

Mfomso a ɛtaa ba wɔ mfiridwuma mu ne sɛ wobebu ahoɔden a wɔde yɛ nneɛma no ho akontaa afi screen datasheet no so na afei woahu sɛ interface nhyehyɛe no adi mfaso no. Nhyehyɛe a ɛteɛ ne sɛ wubedi kan asiesie adwumayɛ profael no — nea wɔda no adi daa, mpɛn dodow a screen no hyerɛn, sɛnea ambient kanea no hyerɛn — na afei woapaw panel no ne drive parameters atia saa profile no. Partial refresh, esum interfaces ne on-demand backlight bom taa nya pii sen switching panels.

Yɛde yɛn ho hyɛ mu wɔ saa gyinabea yi mu: yɛbu akontaa sɛ yɛde di dwuma fi akraman no interface content mu na yɛde afotu ma wɔ drive parameters ho. Panel a wɔpaw a ɛteɛ a wɔde abɔ mu ne interface a wɔannyɛ no yiye no de ahoɔden a wɔakora so no san ma kɛkɛ, na saa adesuakuw a wɔsan yɛ no abu so wɔ mfiri nketewa so.

Sourcing Microdisplays: Nea Ɛsɛ sɛ OEM Adetɔ De Gu RFQ no mu

Microdisplays sua araa ma adetɔfo susuw sɛ ɛnyɛ den sɛ wobenya bi, na nea ɛne eyi bɔ abira no te. OEM adetɔ akwankyerɛ ma 0.42 kɔsi 2.42 inch panel wɔ sɛ ɛsiesie nneɛma a datasheet gyaw bue: active area tolerance tia cover glass window no, flex tail tenten ne bend, interface (SPI, I2C anaa parallel), initialisation sequence a firmware no de bedi dwuma, ne onii a ɔde font anaa graphics library no ma. Nya wɔn mu biara a ɛnteɛ na prototype a edi kan no renhyerɛn.

RFQ adeɛ a ɛtɔ so mmienu ne ahwehwɛdeɛ kwan. A wearable ne instrument panel betumi de ahwehwɛ koro adi dwuma na ehia adanse soronko: drop test, humidity soak, low temperature operation, ne aduruyɛ adwuma a ISO 13485 supply chain wɔ module no akyi. Bisa sɔhwɛ amanneɛbɔ ahorow no ne nhwɛsode no, ɛnyɛ bere a woakra no akyi, efisɛ obi a ɔde nneɛma ma a ɔwɔ bi de bɛmena wɔ da koro mu na obi a onni bi no bɛhyɛ bɔ ɔsram biako.