LG doesn't manufacture displays
LG manufactures IPS(and other LCD) and OLED panels.
It's the OEM for majority displays in market. Their display is used by Samsung(TVs), Apple, Sony, and many laptop brands etc. You can verify by it yourself.
- "LG manufactures display panels for almost all major brands."
- True (with clarification): LG Display, a subsidiary of LG, manufactures panels, especially OLED, and supplies them to major brands like Sony, Vizio, and others. However, it’s not entirely accurate to say they supply "almost all" brands, as Samsung, for example, manufactures its own displays.
- "Sony triumphs over LG in many aspects in my opinion. The picture quality and sound both."
- Subjective: This is an opinion, and it depends on personal preferences. Sony is known for its advanced picture processing (like their Cognitive Processor XR) and sound systems, which some users prefer, but others might like LG's offerings, especially in OLED TVs.
Not sure what do you consider "half knowledge". None of the things I mentioned are incorrect. Samsung manufactures display for their phones (AMOLED) but in their TVs they rely on LG WOLED and IPS displays . They've in fact signed agreement of it.
The picture quality of Sony TV is superior to LG. Sony's engine supports wide color gamut, great colour accuracy, consistent HDR details performance, low or almost none backlit bleeding in IPS displays, amazing brightness and contrast (check the black levels in completely dark room), good 4K upscaling (I've tested 480p content up scaled and still looking good), and balanced motion blur (great for action movies).
The good thing is that both Sony and LG OLED TVs top end TVs come without PWM flickering issue as both use LG panels.
I didn't mention sound quality to make the message longer.
Both TVs are great.
If you compare flagship Sony OLED vs. flagship LG OLED then you will notice the difference. If Sony is 100 then LG is 90.
And like you said, "it's subjective". 😉