diff --git a/build/Makefile b/build/Makefile
index c43c640..ce28a66 100644
--- a/build/Makefile
+++ b/build/Makefile
@@ -135,8 +135,8 @@ version:
 SUFFIX_OBJ     := rel
 
 FILES_PRJ      := $(PATH_SRC)/app/app_hello.c              \
+                  $(PATH_SRC)/app/app_lcd_util.c           \
                   $(PATH_SRC)/app/app_led.c                \
-                  $(PATH_SRC)/app/app_led_util.c           \
                   $(PATH_SRC)/mcal/mcal_gpt.c              \
                   $(PATH_SRC)/os/os.c                      \
                   $(PATH_SRC)/startup/crt0.s
diff --git a/build/ti84-ref_app.vcxproj b/build/ti84-ref_app.vcxproj
index e407211..502f3f2 100644
--- a/build/ti84-ref_app.vcxproj
+++ b/build/ti84-ref_app.vcxproj
@@ -15,13 +15,13 @@
   <ItemGroup>
     <ClCompile Include="..\src\app\app_hello.c" />
     <ClCompile Include="..\src\app\app_led.c" />
-    <ClCompile Include="..\src\app\app_led_util.c" />
+    <ClCompile Include="..\src\app\app_lcd_util.c" />
     <ClCompile Include="..\src\app\app_main.c" />
     <ClCompile Include="..\src\mcal\mcal_gpt.c" />
     <ClCompile Include="..\src\os\os.c" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="..\src\app\app_led_util.h" />
+    <ClInclude Include="..\src\app\app_lcd_util.h" />
     <ClInclude Include="..\src\mcal\mcal_gpt.h" />
     <ClInclude Include="..\src\os\os.h" />
     <ClInclude Include="..\src\startup\asm_util.h" />
diff --git a/build/ti84-ref_app.vcxproj.filters b/build/ti84-ref_app.vcxproj.filters
index eeb49cc..27e0b74 100644
--- a/build/ti84-ref_app.vcxproj.filters
+++ b/build/ti84-ref_app.vcxproj.filters
@@ -47,7 +47,7 @@
     <ClCompile Include="..\src\app\app_led.c">
       <Filter>src\app</Filter>
     </ClCompile>
-    <ClCompile Include="..\src\app\app_led_util.c">
+    <ClCompile Include="..\src\app\app_lcd_util.c">
       <Filter>src\app</Filter>
     </ClCompile>
     <ClCompile Include="..\src\mcal\mcal_gpt.c">
@@ -64,7 +64,7 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="..\src\app\app_led_util.h">
+    <ClInclude Include="..\src\app\app_lcd_util.h">
       <Filter>src\app</Filter>
     </ClInclude>
     <ClInclude Include="..\src\startup\asm_util.h">
diff --git a/src/app/app_hello.c b/src/app/app_hello.c
index ca564a2..b593f14 100644
--- a/src/app/app_hello.c
+++ b/src/app/app_hello.c
@@ -5,7 +5,7 @@
 
 #include <stdbool.h>
 
-#include <app/app_led_util.h>
+#include <app/app_lcd_util.h>
 
 static void app_hello_hello(void);
 static void app_hello_world(void);
@@ -29,31 +29,19 @@ void app_hello_task(void)
 
 static void app_hello_hello(void)
 {
-  app_led_util_home2();
-  app_led_util_putc('h');
-  app_led_util_putc('e');
-  app_led_util_putc('l');
-  app_led_util_putc('l');
-  app_led_util_putc('o');
+  app_lcd_util_home2();
+  app_lcd_util_puts("hello");
 }
 
 static void app_hello_world(void)
 {
-  app_led_util_home2();
-  app_led_util_putc('w');
-  app_led_util_putc('o');
-  app_led_util_putc('r');
-  app_led_util_putc('l');
-  app_led_util_putc('d');
+  app_lcd_util_home2();
+  app_lcd_util_puts("world");
 }
 
 static void app_hello_clear(void)
 {
-  app_led_util_home2();
-  app_led_util_putc(' ');
-  app_led_util_putc(' ');
-  app_led_util_putc(' ');
-  app_led_util_putc(' ');
-  app_led_util_putc(' ');
+  app_lcd_util_home2();
+  app_lcd_util_puts("     ");
 }
 
diff --git a/src/app/app_led_util.c b/src/app/app_lcd_util.c
similarity index 60%
rename from src/app/app_led_util.c
rename to src/app/app_lcd_util.c
index 8869333..56bf74d 100644
--- a/src/app/app_led_util.c
+++ b/src/app/app_lcd_util.c
@@ -3,17 +3,25 @@
 //  Distributed under The Unlicense
 //
 
-#include <app/app_led_util.h>
+#include <app/app_lcd_util.h>
 
-void app_led_util_putc(char c) ATTRIBUTE_NAKED
+#define NULL_PTR (void*) 0
+
+static void app_lcd_util_putc(char c) ATTRIBUTE_NAKED;
+
+void app_lcd_util_puts(const char* p_str)
 {
-  (void) c;
+  char c;
 
-  __asm__("rst 0x28\n" ".dw #0x4504\n");
-  __asm__("ret\n");
+  while((p_str != NULL_PTR) && ((c = *p_str) != '\0'))
+  {
+    app_lcd_util_putc(c);
+
+    ++p_str;
+  }
 }
 
-void app_led_util_home1(void) ATTRIBUTE_NAKED
+void app_lcd_util_home1(void) ATTRIBUTE_NAKED
 {
   __asm__("ld b,#0x02\n");
   __asm__("ld a,b\n");
@@ -24,7 +32,7 @@ void app_led_util_home1(void) ATTRIBUTE_NAKED
   __asm__("ret\n");
 }
 
-void app_led_util_home2(void) ATTRIBUTE_NAKED
+void app_lcd_util_home2(void) ATTRIBUTE_NAKED
 {
   __asm__("ld b,#0x03\n");
   __asm__("ld a,b\n");
@@ -35,9 +43,17 @@ void app_led_util_home2(void) ATTRIBUTE_NAKED
   __asm__("ret\n");
 }
 
-void app_led_util_init(void) ATTRIBUTE_NAKED
+void app_lcd_util_init(void) ATTRIBUTE_NAKED
 {
   __asm__("rst 0x28\n" ".dw #0x4540\n");
   __asm__("rst 0x28\n" ".dw #0x4558\n");
   __asm__("ret\n");
 }
+
+static void app_lcd_util_putc(char c) ATTRIBUTE_NAKED
+{
+  (void) c;
+
+  __asm__("rst 0x28\n" ".dw #0x4504\n");
+  __asm__("ret\n");
+}
diff --git a/src/app/app_led_util.h b/src/app/app_lcd_util.h
similarity index 78%
rename from src/app/app_led_util.h
rename to src/app/app_lcd_util.h
index 8cf8a80..826c77c 100644
--- a/src/app/app_led_util.h
+++ b/src/app/app_lcd_util.h
@@ -24,9 +24,10 @@
   // curCol            #0x844C
   // _PutC             #0x4504
 
-  void app_led_util_putc      (char c) ATTRIBUTE_NAKED;
-  void app_led_util_home1     (void)   ATTRIBUTE_NAKED;
-  void app_led_util_home2     (void)   ATTRIBUTE_NAKED;
-  void app_led_util_init      (void)   ATTRIBUTE_NAKED;
+  void app_lcd_util_puts(const char* p_str);
+
+  void app_lcd_util_home1(void)   ATTRIBUTE_NAKED;
+  void app_lcd_util_home2(void)   ATTRIBUTE_NAKED;
+  void app_lcd_util_init (void)   ATTRIBUTE_NAKED;
 
 #endif // APP_LED_UTIL_2024_01_07_H
diff --git a/src/app/app_led.c b/src/app/app_led.c
index 68b2242..5cb1490 100644
--- a/src/app/app_led.c
+++ b/src/app/app_led.c
@@ -3,7 +3,7 @@
 //  Distributed under The Unlicense
 //
 
-#include <app/app_led_util.h>
+#include <app/app_lcd_util.h>
 
 static void app_led_on (void);
 static void app_led_off(void);
@@ -13,7 +13,7 @@ static bool app_led_is_on;
 
 void app_led_init(void)
 {
-  app_led_util_init();
+  app_lcd_util_init();
 }
 
 void app_led_task(void)
@@ -27,24 +27,18 @@ void app_led_task(void)
 
 static void app_led_on(void)
 {
-  app_led_util_home1();
-  app_led_util_putc('O');
-  app_led_util_putc('N');
-  app_led_util_putc(' ');
+  app_lcd_util_home1();
+  app_lcd_util_puts("ON ");
 }
 
 static void app_led_off(void)
 {
-  app_led_util_home1();
-  app_led_util_putc('O');
-  app_led_util_putc('F');
-  app_led_util_putc('F');
+  app_lcd_util_home1();
+  app_lcd_util_puts("OFF");
 }
 
 static void app_led_clr(void)
 {
-  app_led_util_home1();
-  app_led_util_putc(' ');
-  app_led_util_putc(' ');
-  app_led_util_putc(' ');
+  app_lcd_util_home1();
+  app_lcd_util_puts("   ");
 }