QD-OLED R&D, Patente, Infos zur Backplanetechnik und Anti-Burn-In, Near-Black etc.

Da der andere Thread zu groß geworden ist und leider auch alles Mögliche drin steht, eröffne ich wie beim WOLED-Thread einen neuen Thread der sich speziell mit der QD-OLED-Technologie und deren Weiterentwicklung (umfasst auch QNED, ELQD) beschäftigt. Ausuferndes OT-Gequatsche, Burn-In-Diskussionen und Gemecker über "Panellotterie" ist hier nicht erwünscht um die Übersichtlichkeit zu wahren.

Im AVS-Forum hat einer ein passendes Patent zur Subpixelansteuerung von QD-OLED gepostet, die in einer Dreiecksform angeordnet sind und es gibt Filter um unerwünschtes Licht zu blockieren:

A display apparatus for providing an image through an array of a plurality of pixels includes: an optical panel which converts light of the light-emitting panel into light of another color or transmit the light of the light-emitting panel. The optical panel includes: a substrate; a plurality of color filters arranged over the substrate; a first light-blocking layer arranged in the non-pixel area; a second light-blocking layer arranged in the non-pixel area and on the first light-blocking layer; and a color-converting layer and a transmission layer each overlapping a corresponding color filter from among the plurality of color filters in a plan view. Each of the first light-blocking layer and the second light-blocking layer defines a plurality of holes corresponding to the plurality of pixels, and a width of a hole of the second light-blocking layer is greater than a width of a hole of the first light-blocking layer.

Referring to FIG. 4, the display apparatus includes an array of pixels arranged in the display area DA. The array of the pixels may include blue pixels PAb, red pixels PAr, and green pixels PAg arranged two-dimensionally. In an embodiment, the array of the pixels may have a configuration in which a minimal repeating unit is repeatedly arranged in an x-direction and a y-direction. The minimal repeating unit includes one blue pixel PAb, one red pixel PAr, and one green pixel PAg. The minimal repeating unit is a repeating unit having the smallest number of pixels (e.g., three pixels). The centers of a blue pixel PAb, a red pixel PAr, and a green pixel PAg included in the minimal repeating unit may be located at the vertexes of a virtual triangle VT. In an embodiment, the above-mentioned virtual triangle VT may be an equilateral triangle.

https://patentimages...-20210812-D00006.png

https://patents.google.com/patent/US20210249478A1/en



http://www.hifi-foru...ad=86&postID=502#502


QD-Display-Marketing von Samsung Display:

https://www.samsungdisplay.com/eng/tech/quantum-dot.jsp

Die erste Panelgeneration scheint ein Problem mit der Farbdarstellung dunkler Töne im Near-Blackbereich zu haben. Es kann hier je nach Grau-/Schwarzanteil einer Szene zu einer deutlichen Farbentsättigung kommen.

Now the real issue with both of these TVs is how they transition from a dark color into black/near-black. It didn't take me long to notice, even without having another TV next to it how bad and wrong and weird it looks when a dark color (most notably red) transitions into near-black. It's like there is a certain color range where the panel produces this hazy, muddy looking greensih/gray instead of a color and it just looks so wrong and weird. I can't believe almost nobody else notices this. I see this in almost every content I watch.

https://www.avsforum...of-pictures.3262518/

Mal schauen wie Samsung Display mit der Thematik in Zukunft umgeht und wann es auch dem letzten Tester auffällt, die die Problematik scheinbar noch nicht so auf dem Schirm haben.