diff --git a/src/alga/cli_power.py b/src/alga/cli_power.py
index 0646fe1..ffff49b 100644
--- a/src/alga/cli_power.py
+++ b/src/alga/cli_power.py
@@ -4,7 +4,7 @@
 from alga import client, config
 
 
-app = Typer(no_args_is_help=True, help="Turn TV on and off")
+app = Typer(no_args_is_help=True, help="Turn TV (or screen) on and off")
 
 
 @app.command()
@@ -20,3 +20,17 @@ def on() -> None:
 
     cfg = config.get()
     send_magic_packet(cfg["mac"])
+
+
+@app.command()
+def screen_off() -> None:
+    """Turn TV screen off"""
+
+    client.request("ssap://com.webos.service.tvpower/power/turnOffScreen")
+
+
+@app.command()
+def screen_on() -> None:
+    """Turn TV screen on"""
+
+    client.request("ssap://com.webos.service.tvpower/power/turnOnScreen")
diff --git a/tests/test_cli_power.py b/tests/test_cli_power.py
index 75c2a4d..74d2017 100644
--- a/tests/test_cli_power.py
+++ b/tests/test_cli_power.py
@@ -17,6 +17,26 @@ def test_off(mock_request: mock.MagicMock) -> None:
     assert result.stdout == ""
 
 
+def test_screen_off(mock_request: mock.MagicMock) -> None:
+    result = runner.invoke(app, ["power", "screen-off"])
+
+    mock_request.assert_called_once_with(
+        "ssap://com.webos.service.tvpower/power/turnOffScreen"
+    )
+    assert result.exit_code == 0
+    assert result.stdout == ""
+
+
+def test_screen_on(mock_request: mock.MagicMock) -> None:
+    result = runner.invoke(app, ["power", "screen-on"])
+
+    mock_request.assert_called_once_with(
+        "ssap://com.webos.service.tvpower/power/turnOnScreen"
+    )
+    assert result.exit_code == 0
+    assert result.stdout == ""
+
+
 @mock.patch("alga.config.get")
 @mock.patch("alga.cli_power.send_magic_packet")
 def test_on(
diff --git a/usage.md b/usage.md
index ca621a9..80c89dd 100644
--- a/usage.md
+++ b/usage.md
@@ -19,7 +19,7 @@ $ alga [OPTIONS] COMMAND [ARGS]...
 * `channel`: TV channels
 * `input`: HDMI and similar inputs
 * `media`: Control the playing media
-* `power`: Turn TV on and off
+* `power`: Turn TV (or screen) on and off
 * `setup`: Pair a new TV
 * `sound-output`: Audio output device
 * `version`: Print Alga version
@@ -390,7 +390,7 @@ $ alga media stop [OPTIONS]
 
 ## `alga power`
 
-Turn TV on and off
+Turn TV (or screen) on and off
 
 **Usage**:
 
@@ -406,6 +406,8 @@ $ alga power [OPTIONS] COMMAND [ARGS]...
 
 * `off`: Turn TV off
 * `on`: Turn TV on via Wake-on-LAN
+* `screen-off`: Turn TV screen off
+* `screen-on`: Turn TV screen on
 
 ### `alga power off`
 
@@ -435,6 +437,34 @@ $ alga power on [OPTIONS]
 
 * `--help`: Show this message and exit.
 
+### `alga power screen-off`
+
+Turn TV screen off
+
+**Usage**:
+
+```console
+$ alga power screen-off [OPTIONS]
+```
+
+**Options**:
+
+* `--help`: Show this message and exit.
+
+### `alga power screen-on`
+
+Turn TV screen on
+
+**Usage**:
+
+```console
+$ alga power screen-on [OPTIONS]
+```
+
+**Options**:
+
+* `--help`: Show this message and exit.
+
 ## `alga setup`
 
 Pair a new TV