What is the display (or it's timings) on the STM32H750B-DK?

STM32Cube_FW_H7_V1.9.1\Drivers\BSP\STM32H750B-DK\stm32h750b_discovery_lcd.c

STM32Cube_FW_H7_V1.9.1\Drivers\BSP\Components\rk043fn48h\rk043fn48h.h

RK043FN48H

Should be in the BOM, and the BSP files. I think the screen details/docs have been posted to the forum previously

/**
 * @brief RK043FN48H Size
 */
#define RK043FN48H_WIDTH ((uint16_t)480) /* LCD PIXEL WIDTH */
#define RK043FN48H_HEIGHT ((uint16_t)272) /* LCD PIXEL HEIGHT */
 
/**
 * @brief RK043FN48H Timing
 */
#define RK043FN48H_HSYNC ((uint16_t)41) /* Horizontal synchronization */
#define RK043FN48H_HBP ((uint16_t)13) /* Horizontal back porch */
#define RK043FN48H_HFP ((uint16_t)32) /* Horizontal front porch */
#define RK043FN48H_VSYNC ((uint16_t)10) /* Vertical synchronization */
#define RK043FN48H_VBP ((uint16_t)2) /* Vertical back porch */
#define RK043FN48H_VFP ((uint16_t)2) /* Vertical front porch */
 
/**
 * @brief RK043FN48H frequency divider
 */
#define RK043FN48H_FREQUENCY_DIVIDER 5 /* LCD Frequency divider */
...
 
/**
 * @brief Initializes the LTDC.
 * @param hltdc LTDC handle
 * @param Width LTDC width
 * @param Height LTDC height
 * @retval HAL status
 */
__weak HAL_StatusTypeDef MX_LTDC_Init(LTDC_HandleTypeDef *hltdc, uint32_t Width, uint32_t Height)
{
 hltdc->Instance = LTDC;
 hltdc->Init.HSPolarity = LTDC_HSPOLARITY_AL;
 hltdc->Init.VSPolarity = LTDC_VSPOLARITY_AL;
 hltdc->Init.DEPolarity = LTDC_DEPOLARITY_AL;
 hltdc->Init.PCPolarity = LTDC_PCPOLARITY_IPC;
 
 hltdc->Init.HorizontalSync = RK043FN48H_HSYNC - 1U;
 hltdc->Init.AccumulatedHBP = (RK043FN48H_HSYNC + (RK043FN48H_HBP - 11U) - 1U);
 hltdc->Init.AccumulatedActiveW = RK043FN48H_HSYNC + Width + RK043FN48H_HBP - 1U;
 hltdc->Init.TotalWidth = RK043FN48H_HSYNC + Width + (RK043FN48H_HBP - 11U) + RK043FN48H_HFP - 1U;
 hltdc->Init.VerticalSync = RK043FN48H_VSYNC - 1U;
 hltdc->Init.AccumulatedVBP = RK043FN48H_VSYNC + RK043FN48H_VBP - 1U;
 hltdc->Init.AccumulatedActiveH = RK043FN48H_VSYNC + Height + RK043FN48H_VBP - 1U;
 hltdc->Init.TotalHeigh = RK043FN48H_VSYNC + Height + RK043FN48H_VBP + RK043FN48H_VFP - 1U;
 
 hltdc->Init.Backcolor.Blue = 0xFF;
 hltdc->Init.Backcolor.Green = 0xFF;
 hltdc->Init.Backcolor.Red = 0xFF;
 
 return HAL_LTDC_Init(hltdc);
}