diff --git a/en/application-dev/reference/apis/js-apis-display.md b/en/application-dev/reference/apis/js-apis-display.md
index 2bc06da295e4bf610281929f32b7a797e46db204..21f8d30deacbcacd95e5da17012a3ba3c184c834 100644
--- a/en/application-dev/reference/apis/js-apis-display.md
+++ b/en/application-dev/reference/apis/js-apis-display.md
@@ -1,4 +1,5 @@
-# Display
+# @ohos.display
+
The **Display** module provides APIs for managing displays, such as obtaining information about the default display, obtaining information about all displays, and listening for the addition and removal of displays.
> **NOTE**
@@ -188,7 +189,7 @@ Checks whether there is a visible privacy window on a display. The privacy windo
| Type | Description |
| -------------------------------- |-----------------------------------------------------------------------|
-|boolean | Whether there is a visible privacy window on the display.
The value **true** means that there is a visible privacy window on the display, and **false** means the opposite.
|
+|boolean | Whether there is a visible privacy window on the display. The value **true** means that there is a visible privacy window on the display, and **false** means the opposite. |
**Error codes**
@@ -264,7 +265,7 @@ Unsubscribes from display changes.
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
-| type | string | Yes| Event type.
- **add**, indicating the display addition event. Example: event that a display is connected.
- **remove**, indicating the display removal event. Example: event indicating that a display is disconnected.
- **change**, indicating the display change event. Example: event that the display orientation is changed.|
+| type | string | Yes| Event type.
- **add**, indicating the display addition event. Example: event that a display is connected.
- **remove**, indicating the display removal event. Example: event that a display is disconnected.
- **change**, indicating the display change event. Example: event that the display orientation is changed.|
| callback | Callback<number> | No| Callback used to return the ID of the display.|
**Example**
@@ -404,6 +405,8 @@ Implements a **Display** instance, with properties and APIs defined.
Before calling any API in **Display**, you must use [getAllDisplays()](#displaygetalldisplays9) or [getDefaultDisplaySync()](#displaygetdefaultdisplaysync9) to obtain a **Display** instance.
+### Attributes
+
**System capability**: SystemCapability.WindowManager.WindowManager.Core
| Name| Type| Readable| Writable| Description|
@@ -416,9 +419,9 @@ Before calling any API in **Display**, you must use [getAllDisplays()](#displayg
| rotation | number | Yes| No| Screen rotation angle of the display.
The value **0** indicates that the screen of the display rotates by 0°.
The value **1** indicates that the screen of the display rotates by 90°.
The value **2** indicates that the screen of the display rotates by 180°.
The value **3** indicates that the screen of the display rotates by 270°.|
| width | number | Yes| No| Width of the display, in pixels.|
| height | number | Yes| No| Height of the display, in pixels.|
-| densityDPI | number | Yes| No| Screen density of the display, in DPI.|
-| densityPixels | number | Yes| No| Screen density of the display, in pixels.|
-| scaledDensity | number | Yes| No| Scaling factor for fonts displayed on the display.|
+| densityDPI | number | Yes| No| Screen density of the display, that is, the number of dots per inch. Generally, the value is **160** or **480**.|
+| densityPixels | number | Yes| No| Logical density of the display, which is a scaling coefficient independent of the pixel unit. Generally, the value is **1** or **3**.|
+| scaledDensity | number | Yes| No| Scaling factor for fonts displayed on the display. Generally, the value is the same as that of **densityPixels**.|
| xDPI | number | Yes| No| Exact physical dots per inch of the screen in the horizontal direction.|
| yDPI | number | Yes| No| Exact physical dots per inch of the screen in the vertical direction.|