diff --git a/.idea/misc.xml b/.idea/misc.xml
index d737463..ddef8b0 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -8,7 +8,7 @@
         <entry key="app/src/main/res/drawable/ic_launcher_foreground.xml" value="0.2234375" />
         <entry key="app/src/main/res/drawable/splashscreen.xml" value="0.3859375" />
         <entry key="app/src/main/res/layout/activity_certs_manager.xml" value="0.29483695652173914" />
-        <entry key="app/src/main/res/layout/activity_main.xml" value="0.20729166666666668" />
+        <entry key="app/src/main/res/layout/activity_main.xml" value="0.33" />
         <entry key="app/src/main/res/layout/content_certs.xml" value="0.29483695652173914" />
         <entry key="app/src/main/res/layout/fragment_first.xml" value="0.29483695652173914" />
         <entry key="app/src/main/res/layout/fragment_second.xml" value="0.29483695652173914" />
diff --git a/app/src/main/java/org/communiquons/dccaggregator/activities/MainActivity.kt b/app/src/main/java/org/communiquons/dccaggregator/activities/MainActivity.kt
index 94b4aca..75af45c 100644
--- a/app/src/main/java/org/communiquons/dccaggregator/activities/MainActivity.kt
+++ b/app/src/main/java/org/communiquons/dccaggregator/activities/MainActivity.kt
@@ -5,13 +5,25 @@ import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
 import androidx.appcompat.app.AppCompatDelegate
+import com.google.zxing.BarcodeFormat
+import com.journeyapps.barcodescanner.BarcodeEncoder
 import org.communiquons.dccaggregator.R
+import org.communiquons.dccaggregator.databinding.ActivityMainBinding
+import org.communiquons.dccaggregator.ext.toDimensSize
 
 class MainActivity : BaseActivity() {
+    private lateinit var binding: ActivityMainBinding
+
+    private val qrSize by lazy {
+        R.dimen.qr_code_fullscreen_size.toDimensSize(this).toInt()
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setTheme(R.style.Theme_DCCAggregator)
-        setContentView(R.layout.activity_main)
+
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
 
         AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES)
 
@@ -20,6 +32,12 @@ class MainActivity : BaseActivity() {
             openCertsManager()
     }
 
+    override fun onResume() {
+        super.onResume()
+
+        refreshInfo()
+    }
+
     override fun onCreateOptionsMenu(menu: Menu?): Boolean {
         menuInflater.inflate(R.menu.main_activity_top_menu, menu)
         return super.onCreateOptionsMenu(menu)
@@ -37,4 +55,16 @@ class MainActivity : BaseActivity() {
     fun openCertsManager() {
         startActivity(Intent(this, CertsManager::class.java))
     }
+
+    fun refreshInfo() {
+        certsManager.aggregatedCertificate?.apply {
+            binding.fullName.text = fullName.uppercase()
+            binding.dateOfBirth.text = dateOfBirth
+
+            val bitmap =
+                BarcodeEncoder().encodeBitmap(encoded, BarcodeFormat.QR_CODE, qrSize, qrSize)
+            binding.qrCode.setImageBitmap(bitmap)
+        }
+
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index fd8eba3..83235d9 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -6,13 +6,56 @@
     android:layout_height="match_parent"
     tools:context=".activities.MainActivity">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="#FFFFFF"
         app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <ImageView
+                android:id="@+id/qr_code"
+                android:layout_width="@dimen/qr_code_fullscreen_size"
+                android:layout_height="@dimen/qr_code_fullscreen_size"
+                android:contentDescription="@string/certificate_qr_code"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent"
+                app:srcCompat="@drawable/ic_qr" />
+
+            <TextView
+                android:id="@+id/fullName"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="32dp"
+                android:textColor="#000000"
+                android:textSize="20sp"
+                android:textStyle="bold"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/qr_code"
+                tools:text="John Doe" />
+
+            <TextView
+                android:id="@+id/date_of_birth"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textColor="#000000"
+                android:textSize="20sp"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/fullName"
+                tools:text="01/01/1995" />
+        </androidx.constraintlayout.widget.ConstraintLayout>
+
+    </FrameLayout>
 
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index 5865630..6b48800 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -2,4 +2,5 @@
 <resources>
     <dimen name="qr_code_widget_dcc_size">200dp</dimen>
     <dimen name="qr_code_widget_size">110dp</dimen>
+    <dimen name="qr_code_fullscreen_size">240dp</dimen>
 </resources>
\ No newline at end of file