CN114035323A - A display panel and intelligent glasses for eyeball is tracked - Google Patents
A display panel and intelligent glasses for eyeball is tracked Download PDFInfo
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- CN114035323A CN114035323A CN202111275408.6A CN202111275408A CN114035323A CN 114035323 A CN114035323 A CN 114035323A CN 202111275408 A CN202111275408 A CN 202111275408A CN 114035323 A CN114035323 A CN 114035323A
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- 210000005252 bulbus oculi Anatomy 0.000 title abstract description 16
- 239000011521 glass Substances 0.000 title abstract description 11
- 239000004973 liquid crystal related substance Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 239000004984 smart glass Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 210000001508 eye Anatomy 0.000 description 15
- 210000001747 pupil Anatomy 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/013—Eye tracking input arrangements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B2027/0178—Eyeglass type
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention belongs to the technical field of head-mounted display equipment, and particularly relates to a display panel and intelligent glasses for eyeball tracking, wherein the display panel comprises a body, and the body comprises: the image display area is positioned in the center of the body and used for displaying images; the infrared region is connected with the edge of the image display region and used for providing infrared light; and the time sequence control area is positioned at the edge of the infrared area, is respectively electrically connected with the image display area and the infrared area, is used for driving the image display area to display images according to the image display frequency, and is also used for driving the infrared area to provide infrared light in the interframe vanishing period of the image display area. Above-mentioned structure is through locating the display panel this internally with infrared district, utilizes existing light path among the display panel, realizes providing of infrared light, has not only simplified the design of intelligent glasses, has avoided infrared LED to interfere with the display area simultaneously and has leaded to sheltering from partial display image, has guaranteed user experience.
Description
Technical Field
The invention belongs to the technical field of head-mounted display equipment, and particularly relates to a display panel and intelligent glasses for eyeball tracking.
Background
The eyeball tracking technology is widely applied to VR/AR products, and the fixation point of a user can be judged through eyeball tracking. At present, AR glasses use infrared LED and camera complex mode to realize eyeball tracking function usually, and is concrete, places infrared LED according to certain interval on the FPC of the internal surface outer lane of AR lens, and infrared LED's light emitting area is towards user's eyes, and the reverberation on eyeball surface is gathered to infrared camera to calculate the position that the pupil belongs to through the algorithm.
The lenses of the AR glasses are small, most of the lenses are areas for displaying images, and the FPC in which the LED lamps are placed needs to occupy a certain non-display area space, which may interfere with the display area, resulting in blocking part of the displayed images. In addition, the FPC is not transparent, and the position where the FPC is placed is close to the eyes of a user, so that the sight of the user for observing the external environment can be obstructed, and the user experience is influenced.
Therefore, in view of the above disadvantages, the present invention is urgently needed to provide a display panel and smart glasses for eye tracking.
Disclosure of Invention
The present invention is directed to a display panel and smart glasses for eye tracking, so as to solve at least one of the problems in the related art.
The invention provides a display panel for eyeball tracking, which comprises a body, wherein the body comprises: the image display area is positioned in the center of the body and used for displaying images; the infrared region is connected with the edge of the image display region and is used for providing infrared light; and the time sequence control area is positioned at the edge of the infrared area, is respectively electrically connected with the image display area and the infrared area, is used for driving the image display area to display images according to the image display frequency, and is also used for driving the infrared area to provide infrared light in the frame vanishing period of the image display area.
The display panel for eyeball tracking as described above, further preferably, the infrared region includes an infrared light source, a second light homogenizing plate, and a light shielding sheet, which are stacked in sequence; the second light equalizing plate is suitable for converting light rays emitted by the infrared light source into parallel light rays; the shading sheet is provided with infrared light transmission points suitable for transmitting the parallel light.
The display panel for eye tracking as described above, further preferably, the image display area includes a liquid crystal panel, a first light homogenizing plate and an image backlight light source which are sequentially stacked; the first light equalizing plate is suitable for converting light rays emitted by the image backlight light source into parallel light and sending the parallel light to the liquid crystal panel.
In the display panel for eye tracking as described above, it is further preferable that an isolation structure is provided between the image backlight light source and the infrared light source, and the isolation structure is adapted to avoid crosstalk.
In the display panel for eye tracking according to the above aspect, it is further preferable that the first light uniformizing plate and the second light uniformizing plate are of an integral structure.
In the display panel for eye tracking according to the above, it is further preferable that a driving circuit is disposed in the timing control area, and the driving circuit is respectively connected to the image backlight light source, the infrared light source and the liquid crystal panel.
In the display panel for eyeball tracking as described above, it is further preferable that the infrared region further includes an infrared filter, and the infrared filter is stacked above the light-shielding sheet.
In the display panel for eye tracking according to the above, it is further preferable that the infrared region is annular and is disposed at an outer peripheral edge of the image display region; the time sequence control area is positioned at two ends of the infrared area.
In the display panel for eye tracking according to the above aspect, it is further preferable that the image display area has a rectangular shape.
The invention also discloses intelligent glasses, which comprise the display panel for eyeball tracking.
Compared with the prior art, the invention has the following advantages:
the display panel for eyeball tracking comprises a body, wherein the body comprises an image display area, an infrared area and a time sequence control area, the image display area is positioned in the center of the body and used for displaying images, and the infrared area is connected with the edge of the image display area and used for providing infrared rays; the time sequence control area is positioned at the edge of the infrared area, is respectively electrically connected with the image display area and the infrared area, and is used for driving the image display area to display images according to the image display frequency and driving the infrared area to provide infrared light in the frame vanishing period of the image display area. Above-mentioned structure is through locating the display panel this internally with infrared district, utilizes existing light path among the display panel, realizes the providing of infrared light, and need not to set up extra infrared LED lamp and supporting FPC and the drive circuit who arranges, has not only simplified the design of intelligent glasses, has still avoided infrared LED lamp and display area to interfere simultaneously and has leaded to sheltering from partial display image, has improved user experience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a display panel for eye tracking according to the present invention;
fig. 2 is a schematic view of the arrangement of light sources in the display panel of the present invention.
Description of reference numerals:
10-body, 20-time sequence control area, 30-image display area, 31-pixel point, 40-infrared area, 41-infrared light transmission point, 50-image backlight area and 60-infrared backlight area.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the terms in the present invention can be understood in a specific case to those skilled in the art.
As shown in fig. 1, the display panel for eye tracking provided by the present embodiment mainly includes a main body 10, and an image display area 30, an infrared area 40 and a timing control area 20 disposed in the main body 10.
Wherein the image display region 30 is located at the center of the body 10 for displaying an image. Preferably, the image display region 30 has a rectangular shape corresponding to the shape of the body 10, and includes a liquid crystal panel, a first light uniformizing plate, and an image backlight source, which are sequentially stacked. The image backlight light source includes one or more point light sources that collectively form an image backlight area 50 having the same shape and area as the image display area 30, as shown in fig. 2. The first light equalizing plate is disposed above the image backlight region 50, has the same shape and area as the image backlight region 50, and is used for converting a point light source into a parallel light source and ensuring the uniformity of brightness. The liquid crystal panel is arranged above the first light homogenizing plate, the shape and the area of the liquid crystal panel are the same as those of the first light homogenizing plate, the liquid crystal panel is composed of a plurality of pixel points 31, and each pixel point 31 comprises three colors of red, green and blue for imaging.
The infrared region 40 is connected to an edge of the image display region 30 to supply infrared light. Preferably, the infrared region 40 is annular and surrounds the outer periphery of the image display region 30. Specifically, the infrared region 40 includes an infrared light source, a second light uniformizing plate, and a light shielding plate, which are sequentially stacked. The infrared light source includes one or more infrared point light sources, and the one or more infrared point light sources together form an infrared backlight area 60 having the same shape and the same area as the infrared area 40, as shown in fig. 2. The second light equalizing plate is arranged above the infrared backlight area 60, has the same shape and area as the infrared backlight area 60, and is used for realizing the conversion from a point light source to a parallel light source and ensuring the uniformity of brightness. The shading sheet has the same shape and area as the second light homogenizing plate, is positioned above the second light homogenizing plate, and is provided with an infrared light transmission point 41 suitable for transmitting the parallel light converted by the second light homogenizing plate. The number of the infrared transparent points 41 can be selected according to actual needs, and the arrangement mode thereof can be arranged according to actual needs, which is not specifically limited in this embodiment. In order to ensure the filtering accuracy, in this embodiment, the light-shielding sheet is further covered with an infrared filter which only allows infrared light with the same wavelength band as the infrared light source to pass through, and the shape and area of the infrared filter are the same as those of the light-shielding sheet.
The timing control region 20 is located at the edge of the infrared region 40, specifically, at two ends of the infrared region 40, and a driving circuit electrically connected to the image display region 30 and the infrared region 40 is disposed therein, and the driving circuit is configured to drive the image display region 30 to display an image according to an image display frequency and further configured to drive the infrared region 40 to provide infrared light during a frame blanking period of the image display region 30. Specifically, the driving circuit is electrically connected with the image backlight light source and used for controlling the turning-on and turning-off of the image backlight light source, and the driving circuit is also connected with the liquid crystal panel and used for controlling the brightness levels (hue, saturation and brightness) of red, green and blue light spots in the liquid crystal panel; the conversion from the external control timing of the image to the liquid crystal display timing is suitably realized by the drive control of the image backlight light source and the liquid crystal panel, thereby realizing the image display of the image display area 30. The driving circuit is also electrically connected with the infrared light source and used for controlling the on and off of the infrared light source. Specifically, the driving control frequency of the image backlight light source, the driving control frequency of the infrared light source and the driving control frequency of the liquid crystal panel are the same, and each period of the liquid crystal panel further comprises an inter-frame shadow eliminating period and an image display period according to a signal input and imaging principle, wherein the image backlight light source is lightened in the image display period, and light emitted by the image backlight light source passes through the first light homogenizing plate and then is perceived by a user through the liquid crystal panel which is finely controlled, so that image display is realized; the infrared light source is lighted in the interframe shadow eliminating period, the infrared light is emitted through the shading sheet and the infrared light transmitting sheet to reach the eyes of the user, and is collected by the infrared camera for realizing eyeball tracking after being reflected by the eyes of the user, so that the pupil position of the user is determined.
Further, in order to avoid the image backlight light source and the infrared light source from affecting light crosstalk with each other, in this embodiment, an isolation structure is further disposed between the image backlight light source and the infrared light source. The isolation structure body is used for isolating the image backlight light source from the infrared light source, so that whether the light shading sheet and the infrared filter emit light or not is only determined by whether the infrared light source is lightened or not.
Further, in order to simplify the structure of the display panel, in this embodiment, the first light equalizing plate and the second light equalizing plate are integrally formed. The function of first even worn-out fur and second is the same, and the position in the stacked structure is also the same, and integrated into one piece structure not only can not influence its function, can also regard as reference location structure simultaneously, and then is of value to simplifying the display panel structure, reduces the design degree of difficulty.
The embodiment also discloses intelligent glasses, it includes as above a display panel for eyeball tracking, in addition, still includes infrared camera and main control chip, and infrared camera locates the position department that corresponds to the eyeball on the intelligent glasses for gather by the infrared light of eye reflection, and with information acquisition transmission to main control chip, main control chip calculates the position that the pupil is located through the algorithm, and then provides the basis for follow-up application.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A display panel for eye tracking, comprising a body, the body comprising:
the image display area is positioned in the center of the body and used for displaying images;
the infrared region is connected with the edge of the image display region and is used for providing infrared light;
and the time sequence control area is positioned at the edge of the infrared area, is respectively electrically connected with the image display area and the infrared area, is used for driving the image display area to display images according to the image display frequency, and is also used for driving the infrared area to provide infrared light in the frame vanishing period of the image display area.
2. The display panel for eye tracking according to claim 1, wherein the infrared region comprises an infrared light source, a second light homogenizing plate, and a light shielding plate, which are stacked in sequence; the second light equalizing plate is used for converting light rays emitted by the infrared light source into parallel light; the shading sheet is provided with infrared light transmission points suitable for transmitting the parallel light.
3. The display panel for eye tracking according to claim 2, wherein the image display region comprises a liquid crystal panel, a first light uniformizing plate and an image backlight light source which are sequentially stacked; the first light equalizing plate is suitable for converting light rays emitted by the image backlight light source into parallel light and sending the parallel light to the liquid crystal panel.
4. The display panel for eye tracking according to claim 3,
an isolation structure body is arranged between the image backlight light source and the infrared light source and is suitable for avoiding light crosstalk.
5. The display panel for eye tracking according to claim 3, wherein the first light homogenizing plate and the second light homogenizing plate are of a one-piece structure.
6. The display panel for eye tracking according to claim 3, wherein a driving circuit is disposed in the timing control area, and the driving circuit is respectively connected to the image backlight source, the infrared light source and the liquid crystal panel.
7. The display panel for eye tracking according to claim 2, wherein the infrared region further comprises an infrared filter, and the infrared filter is stacked above the light-shielding sheet.
8. The display panel for eye tracking according to claim 1, wherein the infrared region is annular and is disposed at an outer peripheral edge of the image display region; the time sequence control area is positioned at two ends of the infrared area.
9. The display panel for eye tracking according to claim 1, wherein the image display area has a rectangular shape.
10. Smart glasses comprising a display panel for eye tracking according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111275408.6A CN114035323B (en) | 2021-10-29 | 2021-10-29 | A display panel and intelligent glasses for eyeball is tracked |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111275408.6A CN114035323B (en) | 2021-10-29 | 2021-10-29 | A display panel and intelligent glasses for eyeball is tracked |
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| CN114035323A true CN114035323A (en) | 2022-02-11 |
| CN114035323B CN114035323B (en) | 2022-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115685616A (en) * | 2022-10-27 | 2023-02-03 | 深圳市华弘智谷科技有限公司 | Display device and eye movement tracking system |
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| US20130063698A1 (en) * | 2011-09-14 | 2013-03-14 | Kabushiki Kaisha Topcon | Fundus observation apparatus |
| US20130194244A1 (en) * | 2010-10-12 | 2013-08-01 | Zeev Tamir | Methods and apparatuses of eye adaptation support |
| CN205594581U (en) * | 2016-04-06 | 2016-09-21 | 北京七鑫易维信息技术有限公司 | Module is tracked to eyeball of video glasses |
| CN106874895A (en) * | 2017-03-31 | 2017-06-20 | 北京七鑫易维信息技术有限公司 | A kind of Eye-controlling focus device and head-mounted display apparatus |
| CN109429061A (en) * | 2017-08-31 | 2019-03-05 | Fove股份有限公司 | Image display system, image display method and image show program |
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2021
- 2021-10-29 CN CN202111275408.6A patent/CN114035323B/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| WO2001033282A1 (en) * | 1999-10-29 | 2001-05-10 | Microvision, Inc. | Personal display with vision tracking |
| US20130194244A1 (en) * | 2010-10-12 | 2013-08-01 | Zeev Tamir | Methods and apparatuses of eye adaptation support |
| US20130063698A1 (en) * | 2011-09-14 | 2013-03-14 | Kabushiki Kaisha Topcon | Fundus observation apparatus |
| CN205594581U (en) * | 2016-04-06 | 2016-09-21 | 北京七鑫易维信息技术有限公司 | Module is tracked to eyeball of video glasses |
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| CN115685616A (en) * | 2022-10-27 | 2023-02-03 | 深圳市华弘智谷科技有限公司 | Display device and eye movement tracking system |
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| CN114035323B (en) | 2022-09-23 |
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Effective date of registration: 20221128 Address after: 261031 No. 268 Dongfang Road, hi tech Industrial Development Zone, Shandong, Weifang Patentee after: GOERTEK Inc. Address before: 261000 plant 1, phase III, goer Photoelectric Industrial Park, No. 3999, Huixian Road, Yongchun community, Qingchi street, high tech Zone, Weifang City, Shandong Province Patentee before: GoerTek Optical Technology Co.,Ltd. |