Tagraíonn micrea-LED do theicneolaíocht a úsáideann soilse ar scála miocrón mar aonaid picteilín astaithe solais agus a chóimeálann le modúil tiomána iad chun eagar taispeána ard-dlúis a chruthú. I gcomparáid leis na teicneolaíochtaí taispeána príomhshrutha atá ann faoi láthair ar nós LCD agus OLED, tá buntáistí tras-ghlúin ag Micro LED i dtéarmaí gile, réiteach, tomhaltas fuinnimh, saol seirbhíse, luas freagartha agus cobhsaíocht theirmeach, agus is taispeáint aitheanta idirnáisiúnta é sa todhchaí. teicneolaíochta.
Mar sin féin, tá go leor dúshlán fós le sárú ag tionsclaíocht Micrimhilseogra LED. Ar an gcéad dul síos, tá sé deacair ceanglais tiomána na n-aonad taispeána ard-dlúis i méideanna beaga a mheaitseáil. Ar an dara dul síos, tá sé deacair ag an teicneolaíocht aistrithe mais a bhfuil tóir uirthi sa tionscal freastal ar riachtanais forbartha taispeántais ardtaifigh i dtéarmaí costais agus toraidh. Go háirithe i gcás feidhmchláir ultra-ardtaifigh amhail AR/VR, ní hamháin go gcaithfidh an taifeach a bheith níos mó ná 3000PPI, ach ní mór minicíocht freagartha níos tapúla a bheith ag na picteilíní taispeána freisin.
Professor Zhang Rong of Xiamen Future Display Technology Research Institute cooperated with Nanjing University, Southeast University, Tianma Microelectronics Co., Ltd. and other units to propose a super-resolution Micro LED display technology solution based on MoS₂ thin film transistor driver circuit and monolithic integration.
The team developed a non-"massive transfer" low-temperature monolithic heterogeneous integration technology, using a nearly non-destructive large-scale two-dimensional semiconductor TFT manufacturing process to achieve a 3232 array of 1270 PPI high-brightness, high-resolution microdisplays, It can meet future cross-field applications such as micro display, vehicle display, and visible light communication.
Among them, compared with the traditional two-dimensional semiconductor device process, the new process developed by the team improves the performance of thin film transistors by more than 200 percent , reduces the difference by 67 percent , and the maximum driving current exceeds 200μA/μm, which is superior to IGZO, LTPS and other commercial materials. Show The huge application potential of two-dimensional semiconductor materials in the display driving industry is revealed.
Taispeántas stiúir tríthoiseacha monailiteacha arna dtiomáint ag maitrís trasraitheoirí adamhach tanaí
The research results are written in the article "Three-dimensional monolithic micro-LED display driven by atomically thin transistor matrix" and published in Nature Nanotechnology on September 9, 2021 (corresponding authors are Professor Wang Xinran, Professor Liu Bin, Professor Shi Yi and Professor Zhang Rong ).
Is é seo an chéad uair ar domhan a comhtháthaíodh dhá theicneolaíocht atá ag teacht chun cinn ar ardfheidhmíocht dhá leathsheoltóra TFT agus Micro LED, ag soláthar bealach teicniúil nua d'fhorbairt na teicneolaíochta taispeána Micrimhilseogra sa todhchaí. .
