diff --git a/esphome/components/display/display_buffer.cpp b/esphome/components/display/display_buffer.cpp
index fc59f9abb5..8d37d6536a 100644
--- a/esphome/components/display/display_buffer.cpp
+++ b/esphome/components/display/display_buffer.cpp
@@ -15,93 +15,6 @@ static const char *const TAG = "display";
 const Color COLOR_OFF(0, 0, 0, 255);
 const Color COLOR_ON(255, 255, 255, 255);
 
-void Rect::expand(int16_t horizontal, int16_t vertical) {
-  if (this->is_set() && (this->w >= (-2 * horizontal)) && (this->h >= (-2 * vertical))) {
-    this->x = this->x - horizontal;
-    this->y = this->y - vertical;
-    this->w = this->w + (2 * horizontal);
-    this->h = this->h + (2 * vertical);
-  }
-}
-
-void Rect::extend(Rect rect) {
-  if (!this->is_set()) {
-    this->x = rect.x;
-    this->y = rect.y;
-    this->w = rect.w;
-    this->h = rect.h;
-  } else {
-    if (this->x > rect.x) {
-      this->w = this->w + (this->x - rect.x);
-      this->x = rect.x;
-    }
-    if (this->y > rect.y) {
-      this->h = this->h + (this->y - rect.y);
-      this->y = rect.y;
-    }
-    if (this->x2() < rect.x2()) {
-      this->w = rect.x2() - this->x;
-    }
-    if (this->y2() < rect.y2()) {
-      this->h = rect.y2() - this->y;
-    }
-  }
-}
-void Rect::shrink(Rect rect) {
-  if (!this->inside(rect)) {
-    (*this) = Rect();
-  } else {
-    if (this->x2() > rect.x2()) {
-      this->w = rect.x2() - this->x;
-    }
-    if (this->x < rect.x) {
-      this->w = this->w + (this->x - rect.x);
-      this->x = rect.x;
-    }
-    if (this->y2() > rect.y2()) {
-      this->h = rect.y2() - this->y;
-    }
-    if (this->y < rect.y) {
-      this->h = this->h + (this->y - rect.y);
-      this->y = rect.y;
-    }
-  }
-}
-
-bool Rect::equal(Rect rect) {
-  return (rect.x == this->x) && (rect.w == this->w) && (rect.y == this->y) && (rect.h == this->h);
-}
-
-bool Rect::inside(int16_t test_x, int16_t test_y, bool absolute) {  // NOLINT
-  if (!this->is_set()) {
-    return true;
-  }
-  if (absolute) {
-    return ((test_x >= this->x) && (test_x <= this->x2()) && (test_y >= this->y) && (test_y <= this->y2()));
-  } else {
-    return ((test_x >= 0) && (test_x <= this->w) && (test_y >= 0) && (test_y <= this->h));
-  }
-}
-
-bool Rect::inside(Rect rect, bool absolute) {
-  if (!this->is_set() || !rect.is_set()) {
-    return true;
-  }
-  if (absolute) {
-    return ((rect.x <= this->x2()) && (rect.x2() >= this->x) && (rect.y <= this->y2()) && (rect.y2() >= this->y));
-  } else {
-    return ((rect.x <= this->w) && (rect.w >= 0) && (rect.y <= this->h) && (rect.h >= 0));
-  }
-}
-
-void Rect::info(const std::string &prefix) {
-  if (this->is_set()) {
-    ESP_LOGI(TAG, "%s [%3d,%3d,%3d,%3d] (%3d,%3d)", prefix.c_str(), this->x, this->y, this->w, this->h, this->x2(),
-             this->y2());
-  } else
-    ESP_LOGI(TAG, "%s ** IS NOT SET **", prefix.c_str());
-}
-
 void DisplayBuffer::init_internal_(uint32_t buffer_length) {
   ExternalRAMAllocator<uint8_t> allocator(ExternalRAMAllocator<uint8_t>::ALLOW_FAILURE);
   this->buffer_ = allocator.allocate(buffer_length);
diff --git a/esphome/components/display/display_buffer.h b/esphome/components/display/display_buffer.h
index b5cd2737be..1a62da2323 100644
--- a/esphome/components/display/display_buffer.h
+++ b/esphome/components/display/display_buffer.h
@@ -2,6 +2,7 @@
 
 #include <cstdarg>
 #include <vector>
+#include "rect.h"
 #include "display_color_utils.h"
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
@@ -131,33 +132,6 @@ enum DisplayRotation {
   DISPLAY_ROTATION_270_DEGREES = 270,
 };
 
-static const int16_t VALUE_NO_SET = 32766;
-
-class Rect {
- public:
-  int16_t x;  ///< X coordinate of corner
-  int16_t y;  ///< Y coordinate of corner
-  int16_t w;  ///< Width of region
-  int16_t h;  ///< Height of region
-
-  Rect() : x(VALUE_NO_SET), y(VALUE_NO_SET), w(VALUE_NO_SET), h(VALUE_NO_SET) {}  // NOLINT
-  inline Rect(int16_t x, int16_t y, int16_t w, int16_t h) ALWAYS_INLINE : x(x), y(y), w(w), h(h) {}
-  inline int16_t x2() { return this->x + this->w; };  ///< X coordinate of corner
-  inline int16_t y2() { return this->y + this->h; };  ///< Y coordinate of corner
-
-  inline bool is_set() ALWAYS_INLINE { return (this->h != VALUE_NO_SET) && (this->w != VALUE_NO_SET); }
-
-  void expand(int16_t horizontal, int16_t vertical);
-
-  void extend(Rect rect);
-  void shrink(Rect rect);
-
-  bool inside(Rect rect, bool absolute = true);
-  bool inside(int16_t test_x, int16_t test_y, bool absolute = true);
-  bool equal(Rect rect);
-  void info(const std::string &prefix = "rect info:");
-};
-
 class DisplayBuffer;
 class DisplayPage;
 class DisplayOnPageChangeTrigger;
diff --git a/esphome/components/display/rect.cpp b/esphome/components/display/rect.cpp
new file mode 100644
index 0000000000..6e91c86c4f
--- /dev/null
+++ b/esphome/components/display/rect.cpp
@@ -0,0 +1,98 @@
+#include "rect.h"
+
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace display {
+
+static const char *const TAG = "display";
+
+void Rect::expand(int16_t horizontal, int16_t vertical) {
+  if (this->is_set() && (this->w >= (-2 * horizontal)) && (this->h >= (-2 * vertical))) {
+    this->x = this->x - horizontal;
+    this->y = this->y - vertical;
+    this->w = this->w + (2 * horizontal);
+    this->h = this->h + (2 * vertical);
+  }
+}
+
+void Rect::extend(Rect rect) {
+  if (!this->is_set()) {
+    this->x = rect.x;
+    this->y = rect.y;
+    this->w = rect.w;
+    this->h = rect.h;
+  } else {
+    if (this->x > rect.x) {
+      this->w = this->w + (this->x - rect.x);
+      this->x = rect.x;
+    }
+    if (this->y > rect.y) {
+      this->h = this->h + (this->y - rect.y);
+      this->y = rect.y;
+    }
+    if (this->x2() < rect.x2()) {
+      this->w = rect.x2() - this->x;
+    }
+    if (this->y2() < rect.y2()) {
+      this->h = rect.y2() - this->y;
+    }
+  }
+}
+void Rect::shrink(Rect rect) {
+  if (!this->inside(rect)) {
+    (*this) = Rect();
+  } else {
+    if (this->x2() > rect.x2()) {
+      this->w = rect.x2() - this->x;
+    }
+    if (this->x < rect.x) {
+      this->w = this->w + (this->x - rect.x);
+      this->x = rect.x;
+    }
+    if (this->y2() > rect.y2()) {
+      this->h = rect.y2() - this->y;
+    }
+    if (this->y < rect.y) {
+      this->h = this->h + (this->y - rect.y);
+      this->y = rect.y;
+    }
+  }
+}
+
+bool Rect::equal(Rect rect) {
+  return (rect.x == this->x) && (rect.w == this->w) && (rect.y == this->y) && (rect.h == this->h);
+}
+
+bool Rect::inside(int16_t test_x, int16_t test_y, bool absolute) {  // NOLINT
+  if (!this->is_set()) {
+    return true;
+  }
+  if (absolute) {
+    return ((test_x >= this->x) && (test_x <= this->x2()) && (test_y >= this->y) && (test_y <= this->y2()));
+  } else {
+    return ((test_x >= 0) && (test_x <= this->w) && (test_y >= 0) && (test_y <= this->h));
+  }
+}
+
+bool Rect::inside(Rect rect, bool absolute) {
+  if (!this->is_set() || !rect.is_set()) {
+    return true;
+  }
+  if (absolute) {
+    return ((rect.x <= this->x2()) && (rect.x2() >= this->x) && (rect.y <= this->y2()) && (rect.y2() >= this->y));
+  } else {
+    return ((rect.x <= this->w) && (rect.w >= 0) && (rect.y <= this->h) && (rect.h >= 0));
+  }
+}
+
+void Rect::info(const std::string &prefix) {
+  if (this->is_set()) {
+    ESP_LOGI(TAG, "%s [%3d,%3d,%3d,%3d] (%3d,%3d)", prefix.c_str(), this->x, this->y, this->w, this->h, this->x2(),
+             this->y2());
+  } else
+    ESP_LOGI(TAG, "%s ** IS NOT SET **", prefix.c_str());
+}
+
+}  // namespace display
+}  // namespace esphome
diff --git a/esphome/components/display/rect.h b/esphome/components/display/rect.h
new file mode 100644
index 0000000000..867a9c67c7
--- /dev/null
+++ b/esphome/components/display/rect.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include "esphome/core/helpers.h"
+
+namespace esphome {
+namespace display {
+
+static const int16_t VALUE_NO_SET = 32766;
+
+class Rect {
+ public:
+  int16_t x;  ///< X coordinate of corner
+  int16_t y;  ///< Y coordinate of corner
+  int16_t w;  ///< Width of region
+  int16_t h;  ///< Height of region
+
+  Rect() : x(VALUE_NO_SET), y(VALUE_NO_SET), w(VALUE_NO_SET), h(VALUE_NO_SET) {}  // NOLINT
+  inline Rect(int16_t x, int16_t y, int16_t w, int16_t h) ALWAYS_INLINE : x(x), y(y), w(w), h(h) {}
+  inline int16_t x2() { return this->x + this->w; };  ///< X coordinate of corner
+  inline int16_t y2() { return this->y + this->h; };  ///< Y coordinate of corner
+
+  inline bool is_set() ALWAYS_INLINE { return (this->h != VALUE_NO_SET) && (this->w != VALUE_NO_SET); }
+
+  void expand(int16_t horizontal, int16_t vertical);
+
+  void extend(Rect rect);
+  void shrink(Rect rect);
+
+  bool inside(Rect rect, bool absolute = true);
+  bool inside(int16_t test_x, int16_t test_y, bool absolute = true);
+  bool equal(Rect rect);
+  void info(const std::string &prefix = "rect info:");
+};
+
+}  // namespace display
+}  // namespace esphome