Head-mounted display generated status message

Patent metadata

Field	Value
Publication number	US-11543667-B2
Application number	US-202117331047-A
Country	US
Kind code	B2
Filing date	May 26, 2021
Priority date	May 26, 2021
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

In an example in accordance with the present disclosure, a display system is described. The display system includes a head-mounted display device to display visual content on a display panel. An input port receives external visual content to be displayed on the head-mounted display device from a connected computing device. The display system includes an input device on the head-mounted display device to receive input regarding a condition at the head-mounted display device. The display system includes a memory device on the head-mounted display device to store a database which holds a number of status messages related to a detected condition at the head-mounted display device. The display system also includes an image processing integrated circuit on the head-mounted display device to present the status messages on the head-mounted display device.

First claim

What is claimed is:

1. A display system, comprising: a head-mounted display (HMD) device to display visual content on a display panel; an input port to receive external visual content to be displayed on the HMD device from a connected host computing device; an input device on the HMD device to receive input regarding an interpupillary distance (IPD) of the HMD device; a memory device on the HMD device to store a database which is to hold a number of status messages related to the IPD of the HMD device; and independent of the connected host computing device: an image processing integrated circuit on the HMD device which extracts from the database and based on the IPD, a status message to display on the HMD device, which status message indicates the IPD and presents the status messages on the HMD device.

2. The display system of claim 1 , wherein the input device further comprises a device selected from the group consisting of:
a thermal sensor;
a gyroscope;
a communication signal sensor;
a network connectivity sensor;
a battery level sensor; and
an optical sensor.

3. The display system of claim 1 , wherein:
the HMD device is a stereoscopic display device; and
that database comprises a left eye image and a right eye image for each status message.

4. The display system of claim 1 , wherein the database stores a status message per input value of the input device.

5. The display system of claim 1 , further comprising:
a display bridge integrated circuit to transmit the external visual content to the display panel; and
a micro control unit to receive input from the input device.

6. The display system of claim 5 , wherein the image processing integrated circuit receives as input:
an output from the display bridge integrated circuit; and
an output from the micro control unit.

7. The display system of claim 5 , wherein the image processing integrated circuit and database are disposed on the display bridge integrated circuit.

8. The display system of claim 5 , wherein the image processing integrated circuit and database are disposed on the display panel downstream of the display bridge integrated circuit.

9. The display system of claim 5 , further comprising a switch to switch a display on the display panel between the external visual content and the status message.

10. The display system of claim 1 , wherein the database comprises status messages adjusted to account for lens distortion when presented on the HMD.

11. The display system of claim 1 , wherein the input device comprises a potentiometer which has different voltage level outputs, each voltage level output indicating a distance between eye cups of the HMD device.

12. The display system of claim 11 , wherein the number of status messages are indexed by voltage level outputs.

13. The display system of claim 1 , wherein the number of status messages are indexed by IPD.

14. A method, comprising:
receiving input from an input device on a head-mounted display (HMD) device, the input indicating an interpupillary distance (IPD) of the HMD device;
while not connected to host computing device:
extracting from a database on the HMD device and based on the IPD, a status message to display on the HMD device, which status message indicates the IPD; and
displaying the status message of the IPD on a display panel of the HMD device.

15. The method of claim 14 , wherein displaying the status message on the display panel comprises superimposing the status message over external visual contents provided by a computing device connected to the HMD device.

16. The method of claim 14 , wherein displaying the status message comprises overriding pixels of the external visual content to pixels designated in the status message.

17. The method of claim 14 , further comprising stitching a sequence of status messages to present a video display of a sequence of status messages as the input changes.

18. The method of claim 14 , further comprising adjusting the status message to account for lens distortion of the IPD measurement associated with the status message.

19. A non-transitory machine-readable storage medium encoded with instructions executable by a processor, the machine-readable storage medium comprising instructions to:
receive external visual content from a connected computing device to display on a head-mounted display (HMD) device;
receive input from an input device on the HMD device, the input indicating an interpupillary distance (IPD) of the HMD device;
independent of the connected computing device:
map a received IPD value to a status message stored on a database, which status message displays the mapped IPD;
extract from the database on the HMD device, a status message mapped to the received IPD value; and
presenting the status message on the HMD device.

20. The non-transitory machine-readable storage medium of claim 19 , further instructions executable by the processor to convert an inter-integrated circuit (I2C) signal from the input device to a mobile industry processor interface display serial interface (MIPI DSI) signal for a display panel of the HMD device.

Assignees

• Hewlett Packard Development Co

Inventors

• Cheng Yow Wei
• Li Kuanlin

Classifications

• G02B2027/0181

  Adaptation to the pilot/driver · CPC title

• G02B27/0093

  with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking · CPC title

• G02B27/0172 Primary

  characterised by optical features · CPC title

• G02B2027/0141

  characterised by the informative content of the display · CPC title

• G02B2027/0178

  Eyeglass type (eyeglass details G02C) · CPC title