diff --git a/main/display.h b/main/display.h
--- a/main/display.h
+++ b/main/display.h
@@ -1,6 +1,80 @@
 #ifndef _DISPLAY_H_
 #define _DISPLAY_H_
 
+
+
+
+#include "lvgl.h"
+#include "esp_lcd_panel_io.h"
+#include "esp_lcd_panel_vendor.h"
+#include "esp_lcd_panel_ops.h"
+#include "driver/gpio.h"
+#include "driver/i2c.h"
+// #include "esp_lcd_touch_cst816s.h"
+
+
+//CST816 defines
+#define EXAMPLE_I2C_SCL                17
+#define EXAMPLE_I2C_SDA                18
+#define PIN_TOUCH_RES                  21
+#define EXAMPLE_I2C_NUM                 0   // I2C number
+
+
+#define EXAMPLE_LCD_PIXEL_CLOCK_HZ (10 * 1000 * 1000)
+
+#define EXAMPLE_LCD_BK_LIGHT_ON_LEVEL 1
+#define EXAMPLE_LCD_BK_LIGHT_OFF_LEVEL !EXAMPLE_LCD_BK_LIGHT_ON_LEVEL
+#define EXAMPLE_PIN_NUM_DATA0 39    // 6
+#define EXAMPLE_PIN_NUM_DATA1 40    // 7
+#define EXAMPLE_PIN_NUM_DATA2 41    // 8
+#define EXAMPLE_PIN_NUM_DATA3 42    // 9
+#define EXAMPLE_PIN_NUM_DATA4 45    // 10
+#define EXAMPLE_PIN_NUM_DATA5 46    // 11
+#define EXAMPLE_PIN_NUM_DATA6 47    // 12
+#define EXAMPLE_PIN_NUM_DATA7 48    // 13
+#define EXAMPLE_PIN_NUM_PCLK 8      // 5
+#define EXAMPLE_PIN_NUM_CS 6        // 3
+#define EXAMPLE_PIN_NUM_DC 7        // 4
+#define EXAMPLE_PIN_NUM_RST 5       // 2
+#define EXAMPLE_PIN_NUM_BK_LIGHT 38 // 1
+#define EXAMPLE_PIN_NUM_POWER 15
+#define PIN_LCD_RD 9
+
+// The pixel number in horizontal and vertical
+#define EXAMPLE_LCD_H_RES 320
+#define EXAMPLE_LCD_V_RES 170
+#define LVGL_LCD_BUF_SIZE            (EXAMPLE_LCD_H_RES * EXAMPLE_LCD_V_RES)
+// Bit number used to represent command and parameter
+#define EXAMPLE_LCD_CMD_BITS 8
+#define EXAMPLE_LCD_PARAM_BITS 8
+
+#define EXAMPLE_LVGL_TICK_PERIOD_MS 2
+
+// Supported alignment: 16, 32, 64. A higher alignment can enables higher burst transfer size, thus a higher i80 bus throughput.
+#define EXAMPLE_PSRAM_DATA_ALIGNMENT 32
+
+//Change this to 0 if you do not wish to use Touch.
+#define USE_TOUCH_DISPLAY 0
+
+
+void display_meter();
+void display_window();
+void display_image();
+void display_slider();
+void display_red_square();
+void display_dropdown();
+
+void get_img_color();
+
+void bsp_display_unlock(void);
+bool bsp_display_lock(uint32_t timeout_ms);
+
+
+
+
+
 void display_init(void);
+void display_process(void);
+
 
 #endif
\ No newline at end of file