Digital display device with dual refresh frequencies

Abstract

The invention discloses digital display equipment with double refresh frequencies. The digital display equipment comprises a controller and a digital pixel panel, wherein: a plurality of pixels of the digital pixel panel are divided into a first group of pixels and a second group of pixels, the controller being configured to display graphic content through the digital pixel panel, the controller being configured to operate the first group of pixels at a first non-strobe refresh frequency F1 > = 60 Hz, the controller being configured to operate the second group of pixels at gt; the second group of pixels is operated at a second non-strobe refresh frequency F2 of F1, and when a subject views graphic content displayed on the digital pixel panel, invisible visual stimulation with harmonic frequency HF equal to 2F1-F2 is generated in the brain through endogenous induction. By reasonably selecting F1, F2 and HF determined thereby, the digital display device of the present invention can bring the benefit of preventing or ameliorating Alzheimer's disease, or improving memory extraction.

Description

Technical Field

[0001] This invention relates to the field of digital display devices, and more particularly to digital display devices with dual refresh rates. Background Technology

[0002] U.S. Patent Application 18 / 791,703, filed August 1, 2024, discloses a display device comprising a controller and a two-dimensional digital pixel panel. The plurality of pixels of the two-dimensional digital pixel panel are divided into a first group of pixels and a second group of pixels. The controller is configured to display graphic content through the two-dimensional digital pixel panel. The controller is configured to drive the first group of pixels at a first flicker-free refresh rate (F1) ≥60Hz. The controller is configured to drive the second group of pixels at a second flicker-free refresh rate (F2) ≥60Hz and different from F1. For a subject viewing the digital display device, the device induces an invisible visual stimulus with a frequency equal to the difference between F1 and F2. In U.S. Patent Application 19 / 065,863, a continuation-in-part (CIP) of U.S. Patent Application 18 / 791,703, the digital display device is extended to a display system comprising a first digital display and a second digital display, wherein the first digital display is configured to operate at F1 and the second digital display is configured to operate at F2.

[0003] U.S. Patent Application 19 / 227,439 discloses a digital display device comprising a controller, a first light source, and a second light source. The controller is configured to drive the first light source at a first frequency F1 ≥ 60 Hz to produce a first light output. The controller is also configured to drive the second light source at a second frequency F2 > F1 to produce a second light output. When a subject simultaneously perceives the first and second light outputs, their brain is endogenously induced to produce an invisible visual stimulus with a harmonic frequency (HF) equal to |2F1-F2|. By carefully selecting F1, F2, and the resulting determined HF, the digital display device could be used to treat or prevent Alzheimer's disease. Summary of the Invention

[0004] This invention applies the invention proposed in U.S. Patent Application 19 / 227,439 to the digital display device proposed in U.S. Patent Application 18 / 791,703 and the dual-display system proposed in U.S. Patent Application 19 / 065,863, thereby expanding the range of choices for F1 and F2 in the digital display device of 18 / 791,703 and the dual-display system of 19 / 065,863. By rationally selecting F1, F2, and the HF determined therefrom, the digital display device can provide benefits in preventing or improving Alzheimer's disease or improving memory retrieval.

[0005] On one hand, the digital display device includes a controller and a digital pixel panel. The pixels of the digital pixel panel are divided into a first group of pixels and a second group of pixels. The controller is configured to display graphic content through the digital pixel panel. The controller is configured to drive the first group of pixels at a first flicker-free refresh rate (F1) ≥ 60 Hz. The controller is configured to drive the second group of pixels at a second flicker-free refresh rate (F2) > F1. When a subject views the graphic content displayed on the digital pixel panel, an invisible visual stimulus with a harmonic frequency (HF) equal to |2F1-F2| is endogenously induced in their brain. F1 is flicker-free because it satisfies ≥ 60 Hz, and F2 is flicker-free because F2 > F1 ≥ 60 Hz. Furthermore, HF is invisible because it is endogenously induced in the subject's brain. 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, in terms of inducing endogenous stimulation in the subject's brain, a difference of 40Hz has the same effect as a difference of -40Hz.

[0006] In some embodiments, the HF frequency is between 20 Hz and 45 Hz. In practical applications, the range of HF can be further narrowed to 35 Hz to 40 Hz to generate gamma stimulation in the subject's brain for the treatment or prevention of Alzheimer's disease.

[0007] In some embodiments, F1 = 80Hz, F2 = 120Hz, and HF = |2F1 - F2| = 40Hz. Similarly, with F1 = 80Hz and F2 = 200Hz, we can also obtain HF = |2F1 - F2| = 40Hz.

[0008] In some embodiments, F1 = 65Hz and F2 = 90Hz.

[0009] In some embodiments, F1 = 70Hz and F2 = 100Hz.

[0010] In some embodiments, F1 = 75Hz and F2 = 110Hz.

[0011] In some embodiments, F1 = 85Hz and F2 = 130Hz.

[0012] In some embodiments, F1 = 90Hz and F2 = 140Hz.

[0013] Other studies have shown that slow theta stimulation at 4 Hz and 7 Hz can trigger memory retrieval. This invention can be easily designed to support slow theta stimulation. In some embodiments, the HF is between 3 Hz and 10 Hz.

[0014] In some embodiments, F1 = 60Hz and F2 = 116Hz, resulting in HF = 4Hz. In other embodiments, F1 = 60Hz and F2 = 124Hz, also resulting in HF = 4Hz.

[0015] In some embodiments, such as Figure 2 As shown, the first group of pixels occupies the top area of ​​the digital pixel panel, and the second group of pixels occupies the bottom area of ​​the panel. Figure 2 The white dots represent the first group of pixels, and the black dots represent the second group of pixels. Other layouts can also be used for the first and second groups of pixels. However, separating the first and second groups of pixels into non-overlapping areas simplifies the controller's hardware design and minimizes the perceptible difference in refresh rates between the two groups.

[0016] In some embodiments, the controller has two display channels. The first display channel transmits graphic content to a first group of pixels, and the second display channel transmits graphic content to a second group of pixels.

[0017] In some embodiments, the digital pixel panel includes a first physical digital pixel panel and a second physical display panel. In this case, the controller is configured to drive the first physical digital pixel panel at a refresh rate of F1 and the second physical display pixel panel at a refresh rate of F2. Examples include, but are not limited to, dual-monitor computer systems, dual-screen smartphones, and dual-lens digital glasses. For a dual-monitor computer system, one display operates at a refresh rate of F1 and the other at a refresh rate of F2. In this case, the controller may include a host graphics controller, hardware responsible for refreshing the first display at F1, and hardware responsible for refreshing the second display at F2. The controller determines what content is displayed on each display. Similarly, for a dual-screen smartphone, one screen operates at a refresh rate of F1 and the other at F2. For dual-lens digital glasses, one digital lens operates at a refresh rate of F1 and the other at F2. Attached Figure Description

[0018] The accompanying drawings are provided to aid in a further understanding of the contents of this patent application and form part of the contents of this patent application. The drawings illustrate several embodiments of this patent application and, together with the detailed description below, serve to explain the principles of this patent application. It should be appreciated that the drawings are not necessarily drawn to scale, as some components may be shown out of proportion to actual implementation dimensions in order to clearly illustrate the concepts of this patent application.

[0019] Figure 1 An embodiment of the present invention is illustrated schematically;

[0020] Figure 2An embodiment of the present invention is illustrated schematically, which has a first group of pixels in the top region of the digital pixel panel and a second group of pixels in the bottom region of the digital pixel panel;

[0021] Figure 3 An embodiment of the present invention, a computer system with dual displays, is illustrated schematically. Detailed Implementation

[0022] Overview

[0023] The following describes various implementations of the invention and related inventive concepts. However, the invention is not limited to any particular implementation, and the various embodiments explicitly discussed herein are primarily for illustrative purposes. For example, the various concepts discussed herein can be suitably implemented in a variety of digital display devices with different form factors.

[0024] A digital display device includes a controller and a digital pixel panel. The pixels of the digital pixel panel are divided into a first group of pixels and a second group of pixels. The controller is configured to drive the first group of pixels at a first flicker-free refresh rate F1 and drive the second group of pixels at a second flicker-free refresh rate F2 greater than F1. When a subject views graphic content displayed on the digital pixel panel, an invisible visual stimulus with a harmonic frequency (HF) of |2F1–F2| is endogenously induced in the subject's brain.

[0025] Example

[0026] Figure 1 A digital display device 100 according to an embodiment of the present invention is shown. It includes a controller 101 and a digital pixel panel 102. For example... Figure 2 As shown, the pixels of the digital pixel panel 102 are divided into a first group of pixels and a second group of pixels. Figure 2 White dots represent pixels in the first group of pixels, and black dots represent pixels in the second group of pixels. The controller 101 has two channels 103a and 103b. The controller 101 transmits graphic content to the first group of pixels at a frequency of 80Hz via channel 103a. Similarly, the controller 101 transmits graphic content to the second group of pixels at a frequency of 120Hz via the second display channel 103b. When a subject views the digital pixel panel 102, the subject is exposed to both refresh rates F1 (80Hz) and F2 (120Hz), thus endogenously inducing a harmonic frequency (HF) of 40Hz in the brain. Therefore, the digital display device 100 is suitable for treating or preventing Alzheimer's disease. Other combinations of F1 and F2 can also be selected, such as (65Hz, 90Hz), (70Hz, 100Hz), (75Hz, 110Hz), (85Hz, 130Hz), (90Hz, 140Hz), etc.

[0027] By selecting F1 = 60Hz and F2 = 116Hz (or F2 = 124Hz), the harmonic frequency (HF) is adjusted to 4Hz, thereby enabling the digital display device 100 to support slow theta stimulation. Such embodiments are suitable for treating or preventing memory decline.

[0028] Figure 3 An embodiment 200 of the present invention, a computer system with dual displays, is shown. A laptop computer 201 is equipped with an integrated display 202 operating at a refresh rate of 80 Hz. An extended display 203 has a refresh rate of 120 Hz. The (host) laptop computer controls and manages the content displayed on its integrated display 202 (first physical digital pixel panel) and extended display 203 (second physical pixel panel). The content displayed on the integrated display 202 does not need to be associated with the content displayed on the extended display 203. For example, the integrated display may display a Word document, while the extended display may play a video. When a subject simultaneously views the integrated display 202 and the extended display 203, they are simultaneously exposed to both refresh rates F1 (80 Hz) and F2 (120 Hz), thus endogenously inducing a harmonic frequency (HF) of 40 Hz in the brain. Therefore, embodiment 200 is applicable to the treatment or prevention of Alzheimer's disease. F1 and F2 can also be selected in other combinations, such as (65Hz, 90Hz), (70Hz, 100Hz), (75Hz, 110Hz), (85Hz, 130Hz), (90Hz, 140Hz), etc.

[0029] By selecting F1 = 60Hz and F2 = 116Hz (or F2 = 124Hz), the harmonic frequency (HF) can be adjusted to 4Hz, thereby supporting slow theta stimulation. Such embodiments are suitable for treating or preventing memory decline.

[0030] Other and alternative implementation instructions

[0031] Although these techniques have been described in certain application-specific language, it should be understood that the claims are not necessarily limited to the specific features or applications described herein. Rather, specific features and examples are disclosed only as non-limiting examples of implementing these techniques.

[0032] In this application, the term "or" is intended to mean an inclusive "or," not an exclusive "or." That is, unless otherwise stated or clearly apparent from the context, "X using A or B" is intended to mean any natural inclusive arrangement. That is, if X uses A, X uses B, or X uses A and B, then "X using A or B" is satisfied in any of the foregoing cases. Furthermore, unless otherwise stated or clearly apparent from the context that it refers to the singular form, "a" or "an" in this application should generally be interpreted as "one or more."

Claims

1. A digital display device, comprising: Controller; as well as Digital pixel panel; in: The digital pixel panel's multiple pixels are divided into a first group of pixels and a second group of pixels. The controller is configured to display graphic content via the digital pixel panel. The controller is configured to operate the first group of pixels at a first flicker-free refresh rate F1 of ≥60Hz. The controller is configured to operate the second group of pixels at a second flicker-free refresh rate F2 > F1. When subjects view the graphic content displayed on the digital pixel panel, their brains endogenously induce invisible visual stimuli with a harmonic frequency HF equal to |2F1-F2|.

2. The device according to claim 1, wherein, The harmonic frequencies are between 20Hz and 45Hz.

3. The device according to claim 2, wherein, The first flicker-free refresh rate F1 is 80Hz, and the second flicker-free refresh rate F2 is 120Hz.

4. The device according to claim 2, wherein, The first flicker-free refresh rate F1 is 65Hz, and the second flicker-free refresh rate F2 is 90Hz.

5. The device according to claim 2, wherein, The first flicker-free refresh rate F1 is 70Hz, and the second flicker-free refresh rate F2 is 100Hz.

6. The device according to claim 2, wherein, The first flicker-free refresh rate F1 is 75Hz, and the second flicker-free refresh rate F2 is 110Hz.

7. The device according to claim 2, wherein, The first flicker-free refresh rate F1 is 85Hz, and the second flicker-free refresh rate F2 is 130Hz.

8. The device according to claim 2, wherein, The first flicker-free refresh rate F1 is 90Hz, and the second flicker-free refresh rate F2 is 140Hz.

9. The device according to claim 1, wherein, The harmonic frequency HF is between 3 Hz and 10 Hz.

10. The device according to claim 9, wherein, The first flicker-free refresh rate F1 is 60Hz, and the second flicker-free refresh rate F2 is 116Hz.

11. The device according to claim 9, wherein, The first flicker-free refresh rate F1 is 60Hz, and the second flicker-free refresh rate F2 is 124Hz.

12. The device according to claim 1, wherein, The first group of pixels occupies the top area of ​​the digital pixel panel, and the second group of pixels occupies the bottom area of ​​the digital pixel panel.

13. The device according to claim 1, wherein, The controller is configured with two display channels, including a first display channel and a second display channel; wherein, the first display channel transmits the graphic content to the first group of pixels, and the second display channel transmits the graphic content to the second group of pixels.

14. The device according to claim 1, wherein, The digital pixel panel includes a first physical digital pixel panel and a second physical display panel; the controller is configured to operate the first physical digital pixel panel at a first flicker-free refresh rate F1 and the second physical display pixel panel at a second flicker-free refresh rate F2.

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