diff --git a/en/application-dev/reference/apis/js-apis-display.md b/en/application-dev/reference/apis/js-apis-display.md
index aed3f0dfd30e05810bf103c4b04738ae4fe237f9..aa0488ceb834e93e0f8cdfb3f99be7e365ef31ac 100644
--- a/en/application-dev/reference/apis/js-apis-display.md
+++ b/en/application-dev/reference/apis/js-apis-display.md
@@ -35,21 +35,21 @@ Describes the attributes of a display.
**System capability**: SystemCapability.WindowManager.WindowManager.Core
-| Name | Type | Readable | Writable | Description |
-| ------------- | ----------------------------- | -------- | -------- | ------------------------------------------------------------ |
-| id | number | Yes | No | ID of the display. |
-| name | string | Yes | No | Name of the display. |
-| alive | boolean | Yes | No | Whether the display is alive. |
-| state | [DisplayState](#displaystate) | Yes | No | State of the display. |
-| refreshRate | number | Yes | No | Refresh rate of the display. |
-| rotation | number | Yes | No | Screen rotation angle of the display. |
-| 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. |
-| 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. |
+| Name| Type| Readable| Writable| Description|
+| -------- | -------- | -------- | -------- | -------- |
+| id | number | Yes| No| ID of the display.|
+| name | string | Yes| No| Name of the display.|
+| alive | boolean | Yes| No| Whether the display is alive.|
+| state | [DisplayState](#displaystate) | Yes| No| State of the display.|
+| refreshRate | number | Yes| No| Refresh rate of the display.|
+| rotation | number | Yes| No| Screen rotation angle of the display.|
+| 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, 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.|
## display.getDefaultDisplay
@@ -62,9 +62,9 @@ Obtains the default display object. This API uses an asynchronous callback to re
**Parameters**
-| Name| Type| Mandatory| Description|
-| -------- | -------- | -------- | -------- |
-| callback | AsyncCallback<[Display](#display)> | Yes| Callback used to return the default display object.|
+ | Name| Type| Mandatory| Description|
+ | -------- | -------- | -------- | -------- |
+ | callback | AsyncCallback<[Display](#display)> | Yes| Callback used to return the default display object.|
**Example**
@@ -90,9 +90,9 @@ Obtains the default display object. This API uses a promise to return the result
**Return value**
-| Type | Description |
-| ---------------------------------- | ---------------------------------------------- |
-| Promise<[Display](#display)> | Promise used to return the default display object.|
+ | Type | Description |
+ | ---------------------------------- | ---------------------------------------------- |
+ | Promise<[Display](#display)> | Promise used to return the default display object.|
**Example**
@@ -117,9 +117,9 @@ Obtains all display objects. This API uses an asynchronous callback to return th
**Parameters**
-| Name | Type | Mandatory| Description |
-| -------- | ---------------------------------------------------- | ---- | ------------------------------- |
-| callback | AsyncCallback<Array<[Display](#display)>> | Yes | Callback used to return all the display objects.|
+ | Name | Type | Mandatory| Description |
+ | -------- | ---------------------------------------------------- | ---- | ------------------------------- |
+ | callback | AsyncCallback<Array<[Display](#display)>> | Yes | Callback used to return all the display objects.|
**Example**
@@ -143,9 +143,9 @@ Obtains all display objects. This API uses a promise to return the result.
**Return value**
-| Type | Description |
-| ----------------------------------------------- | ------------------------------------------------------- |
-| Promise<Array<[Display](#display)>> | Promise used to return all the display objects.|
+ | Type | Description |
+ | ----------------------------------------------- | ------------------------------------------------------- |
+ | Promise<Array<[Display](#display)>> | Promise used to return all the display objects.|
**Example**
@@ -168,10 +168,10 @@ Subscribes to display changes.
**Parameters**
-| Name| Type| Mandatory| Description|
-| -------- | -------- | -------- | -------- |
-| type | string | Yes| Event type.
- **add**, indicating the display addition event.
- **remove**, indicating the display removal event.
- **change**, indicating the display change event.|
-| callback | Callback<number> | Yes| Callback used to return the ID of the display.|
+ | Name| Type| Mandatory| Description|
+ | -------- | -------- | -------- | -------- |
+ | type | string | Yes| Event type.
- **add**, indicating the display addition event.
- **remove**, indicating the display removal event.
- **change**, indicating the display change event.|
+ | callback | Callback<number> | Yes| Callback used to return the ID of the display.|
**Example**
@@ -192,10 +192,10 @@ Unsubscribes from display changes.
**Parameters**
-| Name| Type| Mandatory| Description|
-| -------- | -------- | -------- | -------- |
-| type | string | Yes| Event type.
- **add**, indicating the display addition event.
- **remove**, indicating the display removal event.
- **change**, indicating the display change event.|
-| callback | Callback<number> | No| Callback used to return the ID of the display.|
+ | Name| Type| Mandatory| Description|
+ | -------- | -------- | -------- | -------- |
+ | type | string | Yes| Event type.
- **add**, indicating the display addition event.
- **remove**, indicating the display removal event.
- **change**, indicating the display change event.|
+ | callback | Callback<number> | No| Callback used to return the ID of the display.|
**Example**
```js