diff --git a/lvgl_tft/esp_lcd_backlight.c b/lvgl_tft/esp_lcd_backlight.c
index f4395bd..c563bce 100644
--- a/lvgl_tft/esp_lcd_backlight.c
+++ b/lvgl_tft/esp_lcd_backlight.c
@@ -12,6 +12,11 @@
 #include "esp_log.h"
 #include "soc/ledc_periph.h" // to invert LEDC output on IDF version < v4.3
 
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 3, 0)
+#include "esp_rom_gpio.h"
+#include "soc/gpio_sig_map.h"
+#endif
+
 typedef struct {
     bool pwm_control; // true: LEDC is used, false: GPIO is used
     int index;        // Either GPIO or LEDC channel
@@ -56,15 +61,27 @@ disp_backlight_h disp_backlight_new(const disp_backlight_config_t *config)
 
         ESP_ERROR_CHECK(ledc_timer_config(&LCD_backlight_timer));
         ESP_ERROR_CHECK(ledc_channel_config(&LCD_backlight_channel));
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 3, 0)
+        esp_rom_gpio_connect_out_signal(config->gpio_num, ledc_periph_signal[LEDC_LOW_SPEED_MODE].sig_out0_idx + config->channel_idx, config->output_invert, 0);
+#else
         gpio_matrix_out(config->gpio_num, ledc_periph_signal[LEDC_LOW_SPEED_MODE].sig_out0_idx + config->channel_idx, config->output_invert, 0);
+#endif
     }
     else
     {
         // Configure GPIO for output
         bckl_dev->index = config->gpio_num;
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 3, 0)
+        esp_rom_gpio_pad_select_gpio(config->num);
+#else
         gpio_pad_select_gpio(config->gpio_num);
+#endif
         ESP_ERROR_CHECK(gpio_set_direction(config->gpio_num, GPIO_MODE_OUTPUT));
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 3, 0)
+        esp_rom_gpio_connect_out_signal(config->gpio_num, SIG_GPIO_OUT_IDX, config->output_invert, false);
+#else
         gpio_matrix_out(config->gpio_num, SIG_GPIO_OUT_IDX, config->output_invert, false);
+#endif
     }
 
     return (disp_backlight_h)bckl_dev;