feat(docs): Update display config docs

docs/docs/config/displays.md

@@ -22,22 +22,39 @@ Definition files:
 | `CONFIG_ZMK_WIDGET_OUTPUT_STATUS`  | bool | Enable a widget to show the current output (USB/BLE) | y       |
 | `CONFIG_ZMK_WIDGET_WPM_STATUS`     | bool | Enable a widget to show words per minute             | n       |
 
-If `CONFIG_ZMK_DISPLAY` is enabled, exactly one of the following options must be set to `y`:
+If `CONFIG_ZMK_DISPLAY` is enabled, exactly zero or one of the following options must be set to `y`. The first option is used if none are set.
 
-| Config                                      | Type | Description                    | Default |
-| ------------------------------------------- | ---- | ------------------------------ | ------- |
-| `CONFIG_ZMK_DISPLAY_STATUS_SCREEN_BUILT_IN` | bool | Use the built-in status screen | y       |
-| `CONFIG_ZMK_DISPLAY_STATUS_SCREEN_CUSTOM`   | bool | Use a custom status screen     | n       |
+| Config                                      | Description                    |
+| ------------------------------------------- | ------------------------------ |
+| `CONFIG_ZMK_DISPLAY_STATUS_SCREEN_BUILT_IN` | Use the built-in status screen |
+| `CONFIG_ZMK_DISPLAY_STATUS_SCREEN_CUSTOM`   | Use a custom status screen     |
 
-You must also configure the Zephyr driver for your display. Here are the Kconfig options for common displays.
+If `CONFIG_ZMK_DISPLAY` is enabled, exactly zero or one of the following options must be set to `y`. The first option is used if none are set.
 
-- [SSD1306](https://docs.zephyrproject.org/latest/reference/kconfig/CONFIG_SSD1306.html)
+| Config                                    | Description                               |
+| ----------------------------------------- | ----------------------------------------- |
+| `CONFIG_ZMK_DISPLAY_WORK_QUEUE_SYSTEM`    | Use the system main thread for UI updates |
+| `CONFIG_ZMK_DISPLAY_WORK_QUEUE_DEDICATED` | Use a dedicated thread for UI updates     |
+
+Using a dedicated thread requires more memory but prevents displays with slow updates (e.g. E-paper) from delaying key scanning and other processes. If enabled, the following options configure the thread:
+
+| Config                                           | Type | Description                  | Default |
+| ------------------------------------------------ | ---- | ---------------------------- | ------- |
+| `CONFIG_ZMK_DISPLAY_DEDICATED_THREAD_STACK_SIZE` | int  | Stack size for the UI thread | 2048    |
+| `CONFIG_ZMK_DISPLAY_DEDICATED_THREAD_PRIORITY`   | int  | Priority for the UI thread   | 5       |
+
+You must also configure the driver for your display. ZMK provides the following display drivers:
+
+- [IL0323](https://github.com/zmkfirmware/zmk/blob/main/app/drivers/display/Kconfig.il0323)
+
+Zephyr provides several display drivers as well. Search for the name of your display in [Zephyr's Kconfig options](https://docs.zephyrproject.org/latest/kconfig.html) documentation.
 
 ## Devicetree
 
-See the Zephyr Devicetree bindings for your display. Here are the bindings for common displays:
+See the Devicetree bindings for your display. Here are the bindings for common displays:
 
-- [SSD1306 (i2c)](https://docs.zephyrproject.org/latest/reference/devicetree/bindings/solomon,ssd1306fb-i2c.html)
-- [SSD1306 (spi)](https://docs.zephyrproject.org/latest/reference/devicetree/bindings/solomon,ssd1306fb-spi.html)
+- [IL0323](https://github.com/zmkfirmware/zmk/blob/main/app/dts/bindings/display/gooddisplay%2Cil0323.yaml)
+- [SSD1306 (i2c)](https://docs.zephyrproject.org/latest/build/dts/api/bindings/display/solomon,ssd1306fb-i2c.html)
+- [SSD1306 (spi)](https://docs.zephyrproject.org/latest/build/dts/api/bindings/display/solomon,ssd1306fb-spi.html)
 
-A full list of supported drivers can be found in [Zephyr's Devicetree bindings index](https://docs.zephyrproject.org/latest/reference/devicetree/bindings.html).
+A full list of drivers provided by Zephyr can be found in [Zephyr's Devicetree bindings index](https://docs.zephyrproject.org/latest/build/dts/api/bindings.html).