diff --git a/drivers/video/display/screen/lcd_rk2928_a720.c b/drivers/video/display/screen/lcd_rk2928_a720.c
index c7e7290c61d4..32dfd4d65ada 100644
--- a/drivers/video/display/screen/lcd_rk2928_a720.c
+++ b/drivers/video/display/screen/lcd_rk2928_a720.c
@@ -26,7 +26,7 @@
 #define V_FP			13 //18
 
 /* Other */
-#define DCLK_POL		0
+#define DCLK_POL		1
 #define SWAP_RB			0
 
 #define LCD_WIDTH       154    //need modify