Dual refresh rate digital display device

Abstract

To provide a digital display device that prevents Alzheimer's disease or improves memory recall. [Solution] The digital display device includes a control unit and a digital pixel panel. The pixels of the digital pixel panel are divided into a first pixel group and a second pixel group. The control unit is configured to operate the first pixel group at a first flicker-free refresh frequency F1 and the second pixel group at a second flicker-free refresh frequency F2 that exceeds F1. When graphic content displayed on the digital pixel panel is viewed by a subject, invisible visual stimuli with harmonic frequencies (HF) equal to |2F1-F2| are intrinsically induced in the subject's brain. By appropriately selecting F1 and F2, and subsequently HF, the digital display device achieves the benefit of preventing Alzheimer's disease or improving memory recall.

Description

[[Technical Field]]

[0001] The present disclosure is a continuation-in-part (CIP) of U.S. Patent Application No. 19 / 065,863 filed on February 27, 2025, and U.S. Patent Application No. 19 / 065,863 is a CIP of U.S. Patent Application No. 18 / 791,703 filed on August 1, 2024. Furthermore, the present disclosure is a CIP of U.S. Patent Application No. 19 / 227,439 filed on June 3, 2025. The contents of these applications are hereby incorporated by reference in their entirety into the present disclosure.

[0002] The present disclosure relates to the field of digital display devices, and more specifically, proposes a dual refresh rate digital display device. [[Background Art]]

[0003] U.S. Patent Application No. 18 / 791,703, filed on August 1, 2024, introduces a display device including a control unit and a two-dimensional digital pixel panel. A plurality of pixels of the two-dimensional digital pixel panel are divided into a first pixel group and a second pixel group. The control unit is configured to display graphic content via the two-dimensional digital pixel panel. The control unit is configured to operate the first pixel group at a first flicker-free refresh frequency (F1) that is 60 Hz or higher. The control unit is configured to operate the second pixel group at a second flicker-free refresh frequency (F2) that is 60 Hz or higher and different from F1. An invisible visual stimulus to a subject viewing the digital display device is induced at a frequency equal to the difference between F1 and F2. In U.S. Patent Application No. 19 / 065,863, which is a CIP of U.S. Patent Application No. 18 / 791,703, the digital display device is extended to a display system including a first digital display and a second digital display, the first digital display is configured to operate at F1, and the second digital display is configured to operate at F2.

[0004] U.S. Patent Application 19 / 227,439 introduces a digital display device including a control unit, a first light source, and a second light source. The control unit is configured to operate the first light source at a first frequency F1, which is 60 Hz or higher, to generate a first light output. Furthermore, the control unit is configured to operate the second light source at a second frequency F2 (>F1) to generate a second light output. When the first and second light outputs are perceived simultaneously by a subject, an invisible visual stimulus with a harmonic frequency (HF) equal to |2F1-F2| is intrinsically induced in the subject's brain. By carefully selecting F1 and F2, and then HF, the digital display device can be used to treat or prevent Alzheimer's disease.

[0005] This disclosure applies the invention introduced in U.S. Patent Application 19 / 227,439 to the digital display device introduced in U.S. Patent Application 18 / 791,703 and the dual display system introduced in 19 / 065,863, thereby generalizing the selection of F1 and F2 for the digital display device introduced in U.S. Patent Application 18 / 791,703 and the dual display system introduced in 19 / 065,863. By appropriately selecting F1 and F2, and subsequently HF, the digital display device achieves the benefit of preventing Alzheimer's disease or improving memory recall. [Overview of the project]

[0006] In one embodiment, a digital display device includes a control unit and a digital pixel panel. The pixels of the digital pixel panel are divided into a first pixel group and a second pixel group. The control unit is configured to display graphic content via the digital pixel panel. The control unit is configured to operate the first pixel group at a first flicker-free refresh frequency (F1) which is 60 Hz or higher. The control unit is configured to operate the second pixel group at a second flicker-free refresh frequency (F2) which is greater than F1. When the graphic content displayed on the digital pixel panel is viewed by a subject, invisible visual stimuli with harmonic frequencies (HF) equal to |2F1-F2| are intrinsically induced in the subject's brain. F1 is flicker-free at 60 Hz or higher, and F2 is flicker-free at frequencies greater than F1 which is 60 Hz or higher. Furthermore, since HF is intrinsically induced in the subject's brain, it is invisible. The digital display device does not directly emit such HF. |2F1-F2| represents the absolute value of the difference between 2F1 and F2. In other words, as far as the point of intrinsically inducing stimulation in the subject's brain is concerned, a difference of 40 Hz is the same as a difference of -40 Hz.

[0007] In some embodiments, HF is between 20 Hz and 45 Hz. In practice, HF may be more narrowly selected, between 35 Hz and 40 Hz. This generates gamma stimulation in the subject's brain to treat or prevent Alzheimer's disease.

[0008] In some embodiments, F1 is 80 Hz and F2 is 120 Hz, and therefore HF = |2F1 - F2| = 40 Hz. Similarly, even if F1 is 80 Hz and F2 is 200 Hz, HF = |2F1 - F2| = 40 Hz.

[0009] In some embodiments, F1 is 65 Hz and F2 is 90 Hz.

[0010] In some embodiments, F1 is 70 Hz and F2 is 100 Hz.

[0011] In some embodiments, F1 is 75 Hz and F2 is 110 Hz.

[0012] In some embodiments, F1 is 85 Hz and F2 is 130 Hz.

[0013] In some embodiments, F1 is 90 Hz and F2 is 140 Hz.

[0014] Other studies have shown that slow theta stimuli of 4 Hz and 7 Hz have a memory-recalling effect. This disclosure can be easily adapted to accommodate slow theta stimuli. In some embodiments, HF is between 3 Hz and 10 Hz.

[0015] In some embodiments, F1 is 60 Hz, F2 is 116 Hz, and HF = 4 Hz. In some other embodiments, F1 is 60 Hz, F2 is 124 Hz, and HF = 4 Hz.

[0016] In some embodiments, as shown in Figure 2, the first pixel group occupies the upper region of the digital pixel panel, and the second pixel group occupies the lower region of the digital pixel panel. In Figure 2, the white dots represent pixels of the first pixel group, and the black dots represent pixels of the second pixel group. Other arrangements of the first and second pixel groups are possible. However, separating the first and second pixel groups into different regions simplifies the hardware design of the control unit and minimizes the perceived difference in refresh frequency between the first and second pixel groups.

[0017] In some embodiments, the control unit has two display channels. The first display channel supplies graphic content to the first pixel group, and the second display channel supplies graphic content to the second pixel group.

[0018] In some embodiments, the digital pixel panel includes a first physical digital pixel panel and a second physical display panel. In this case, the control unit is configured to operate the first physical digital pixel panel at an F1 refresh frequency and the second physical display pixel panel at an F2 refresh frequency. Examples include, but are not limited to, dual-monitor computer systems, dual-screen smartphones, and dual-lens digital goggles. In the dual-monitor computer system of this disclosure, one monitor operates at an F1 refresh frequency and the other monitor operates at an F2 refresh frequency. In this case, the control unit may include a graphics control unit of the host computer, hardware for refreshing the first monitor at F1, and hardware for refreshing the second monitor at F2. The control unit determines the content to be displayed on the first monitor and the content to be displayed on the other monitor. Similarly, in the dual-screen smartphone of this disclosure, one screen operates at F1 and the other screen operates at F2. In the dual-lens digital goggles of this disclosure, one digital lens operates at F1 and the other digital lens operates at F2. [Brief explanation of the drawing]

[0019] The attached drawings are included to aid in a further understanding of this disclosure, are incorporated into this disclosure, and constitute part of this disclosure. The drawings illustrate selected embodiments of this disclosure and, together with the detailed description below, help to illustrate the principles of this disclosure. It is evident that the drawings are not necessarily to scale, and some components may be shown as not being proportional in size to their actual implementation in order to clearly illustrate the concepts of this disclosure.

[0020] [Figure 1] A diagram schematically illustrating an embodiment of the disclosure.

[0021] [Figure 2]A diagram schematically showing an embodiment of the present disclosure in which a first pixel group is arranged in an upper region of a digital pixel panel and a second pixel group is arranged in a lower region of the digital pixel panel.

[0022] [Figure 3] A diagram schematically showing an embodiment of the present disclosure as a computer system including dual monitors. Mode for Carrying Out the Invention

[0023] (Summary) Various embodiments of the present disclosure and related inventive concepts are described below. However, it should be appreciated that the present disclosure is not limited to any specific embodiment, and the various embodiments explicitly described herein are primarily for illustrative purposes. For example, the various concepts described herein may be suitably implemented in various digital display devices having different form factors.

[0024] A digital display device includes a control unit and a digital pixel panel. Pixels of the digital pixel panel are divided into a first pixel group and a second pixel group. The control unit is configured to operate the first pixel group at a first flicker-free refresh frequency F1, and operate the second pixel group at a second flicker-free refresh frequency F2 exceeding F1. When graphic content displayed on the digital pixel panel is viewed by a subject, an invisible visual stimulus having a harmonic frequency (HF) equal to |2F1-F2| is endogenously induced in the subject's brain. (Examples)

[0025] FIG. 1 shows an embodiment 100 of the digital display device of the present disclosure. The present embodiment includes a control unit 101 and a digital pixel panel 102. The pixels of the digital pixel panel 102 are divided into a first pixel group and a second pixel group, as shown in FIG. 2. White dots in FIG. 2 indicate pixels of the first pixel group, and black dots indicate pixels of the second pixel group. The control unit 101 has two channels 103a and 103b. The control unit 101 supplies graphic content to the first pixel group at 80 Hz through the channel 103a. Similarly, the control unit 101 supplies graphic content to the second pixel group at 120 Hz through the second display channel 103b. When a subject views the digital pixel panel 102, the subject is exposed to both refresh frequencies F1 (80 Hz) and F2 (120 Hz), and as a result, 40 Hz HF is endogenously induced in the subject's brain. Accordingly, the embodiment 100 is suitable for the treatment and prevention of Alzheimer's disease. F1 and F2 may be other combinations, for example, (65 Hz, 90 Hz), (70 Hz, 100 Hz), (75 Hz, 110 Hz), (85 Hz, 130 Hz), (90 Hz, 140 Hz), etc.

[0026] Embodiment 100 can be modified to correspond to low-frequency theta stimulation. In this case, F1=60 Hz and F2=116 Hz (or F2=124 Hz) are selected to obtain HF=4 Hz. These embodiments are suitable for the treatment or prevention of memory loss.

[0027] Figure 3 shows an embodiment 200 of the present disclosure as a computer system having dual monitors. A laptop computer 201 has an all-in-one monitor 202 operating at a refresh rate of 80 Hz. The refresh rate of the extended monitor 203 is 120 Hz. The (host) laptop computer controls and manages the content of both the all-in-one monitor 202 (first physical digital pixel panel) and the extended monitor 203 (second physical pixel panel). The content displayed on the all-in-one monitor 202 does not need to be related to the content displayed on the extended monitor 203. For example, the all-in-one monitor may display a Word document, and the extended monitor may display a video. When a subject views both the all-in-one monitor 202 and the extended monitor 203 simultaneously, the subject is exposed to both refresh rates F1 (80 Hz) and F2 (120 Hz), resulting in the intrinsic induction of a 40 Hz HF in the subject's brain. Thus, embodiment 200 is suitable for the treatment and prevention of Alzheimer's disease. F1 and F2 can be any other combination, for example, (65Hz, 90Hz), (70Hz, 100Hz), (75Hz, 110Hz), (85Hz, 130Hz), (90Hz, 140Hz), etc.

[0028] Embodiment 200 can be modified to accommodate slow theta stimulation. In this case, F1=60Hz and F2=116Hz (or F2=124Hz) are selected and HF=4Hz. These embodiments are suitable for the treatment or prevention of memory loss. (Additional and alternative implementation considerations)

[0029] While this technology has been described in terms of specific applications, it should be understood that the attached claims are not necessarily limited to the specific features or applications described herein. Rather, the specific features and examples disclosed are non-limiting exemplary forms for carrying out such technology.

[0030] As used in this application, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or it is clear from the context, “X uses A or B” is intended to mean any of the natural inclusive substitutions. In other words, “X uses A or B” is satisfied in any of the following cases: X uses A, X uses B, X uses both A and B. Furthermore, as used in this application and the attached claims, the articles “a” and “an” should generally be interpreted as meaning “one or more” unless otherwise specified or it is clear from the context that they refer to a singular form.

Claims

1. A digital display device, Control unit and Includes a digital pixel panel, The multiple pixels of the aforementioned digital pixel panel are divided into a first pixel group and a second pixel group. The control unit is configured to display graphic content via the digital pixel panel, The control unit is configured to operate the first pixel group at a first flicker-free refresh frequency (F1) of 60 Hz or higher. The control unit is configured to operate the second pixel group at a second flicker-free refresh frequency (F2) that exceeds F1. A digital display device in which, when the graphic content displayed on the digital pixel panel is viewed by a subject, an invisible visual stimulus with a harmonic frequency (HF) equal to |2F1-F2| is intrinsically induced in the subject's brain.

2. The apparatus according to claim 1, HF is a device that operates between 20 Hz and 45 Hz.

3. The apparatus according to claim 2, F1 is 80Hz, F2 is a device with a frequency of 120 Hz.

4. The apparatus according to claim 2, F1 is 65 Hz, F2 is a device with a frequency of 90 Hz.

5. The apparatus according to claim 2, F1 is 70Hz, F2 is a device with a frequency of 100 Hz.

6. The apparatus according to claim 2, F1 is 75 Hz, F2 is a device with a frequency of 110 Hz.

7. The apparatus according to claim 2, F1 is 85 Hz, F2 is a device with a frequency of 130 Hz.

8. The apparatus according to claim 2, F1 is 90 Hz, F2 is a device with a frequency of 140 Hz.

9. The apparatus according to claim 1, HF is a device that operates between 3 Hz and 10 Hz.

10. The apparatus according to claim 9, F1 is 60Hz, F2 is a device with a frequency of 116 Hz.

11. The apparatus according to claim 9, F1 is 60Hz, F2 is a device with a frequency of 124 Hz.

12. The apparatus according to claim 1, The first pixel group occupies the upper region of the digital pixel panel, The second pixel group occupies the lower region of the digital pixel panel.

13. The apparatus according to claim 1, The control unit is configured using two display channels, including a first display channel and a second display channel. The first display channel supplies the graphic content to the first pixel group, The second display channel is a device that supplies the graphic content to the second pixel group.

14. The apparatus according to claim 1, The digital pixel panel includes a first physical digital pixel panel and a second physical display pixel panel. The control unit is configured to operate the first physical digital pixel panel at an F1 refresh frequency and the second physical display pixel panel at an F2 refresh frequency.

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