https://www.st.com/en/power-management/display-supplies-and-controllers.html
Display Power Supply IC and Controllers - LCD/LED/OLED/AMOLED - STMicroelectronics
ST's portfolio of display supplies and controllers includes LCD/OLED PSUs with embedded-energy saving features and highly integrated VFD/LED front panel...
display power supplylcd ledic
https://www.analog.com/en/resources/technical-articles/choosing-the-right-powersupply-ic-for-your-application.html
Choosing the Right Power-Supply IC for your Application | Analog Devices
explains purpose for power-supply IC and guidelines for choosing switching regulator, linear regulator, or charge pump to power your application.
choosing the rightpower supply icfor your