A Novel Single X-Wire AM Mini-LED Backlight Unit with Motion Blur Reduction for High-Image-Quality LCD TVs

Round 1

Reviewer 1 Report

 I will give the following questions to the authors for revisions.

 

1. The first abbreviation in abstract, figures, and main-text should be typed the full English words, e.g. X-wire, DCON, H-scan, BLG, and BFI.

2. The line 81: There are 128 dimmers in maximum in each X-wire. Therefore, one DCON with 64 strings dimmers can support 32,768 dimming zones in maximum. Authors should explain how to calculate from these parameters.

2. The line 150: “Figure 10 shows an 85-inch UHD TV using proposed single X-wire AM mini-LED back-light unit with motion blur reduction in large-size display with H-scan driving method.” The paragraph should move backward after the explanation of the figure 9.

3. The Line 169: Figure 11 is disappeared in the manuscript.

4. Reference format. All of authors will be listed instead of …, et al. Published year.

(2019) should be revised. There are three formats within “SID Symposium Digest of Technical Papers, SID Symp. Dig. Tech. Papers, SID 2020 Digest”. Please unify the format of the same journal.

5. Authors can provide several references or textbooks related with X-wire of mini-LED drivers, DCON (Matrix controller), and H-scan driving methods in the introduction.

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

The manuscript presents some impressive results on how to improve the AM mini-LED backlight units for LCD display systems. However, it focuses on describing the technical approaches rather than analyzing scientific issues, and does not meet the criteria for publication in a scientific journal, which typically requires research that makes a significant contribution to advance the scientific understanding of a particular field. As such, I believe that this manuscript would be more appropriately published as a patent or presented in a conference, rather than as a scientific publication. 

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

This paper presents a novel driving method for AM mini-LED displays using a single X-wire. The single X-wire eliminates the need for additional scanning and sensing lines, combined with the H-scan method, can achieve high image quality with reduced motion blur with lower cost and lower power consumption compared with conventional mini-LED displays. The novelty of this work is good, and the methods are well described, however, the results and discussion section needs to be strengthened. Below are some critical issues that the authors should address before this work can be recommended for publication. 

1. (line 13) “Our latest work includes…” This sentence is long and confusing. I recommend rewriting it with multiple shorter sentences. 

2. (line 33) The sentence “increasing dimming zones can suppress the halo effects” needs appropriate reference or some elaboration. 

3. (Figure 8 and Figure 9) The font size of the text in these figures is too small. In addition, the way the waveforms are organized is slightly confusing, please remove unnecessary information for the readers. Simply using a screenshot is not recommended. Please also label the waveforms or add legend. 

4. (line 168) “… shows great uniformity” needs more detailed explanation/illustration, either qualitatively or quantitatively. 

5. (line 169) Figure 11 is missing in the current manuscript. 

6. (line 176) The comparison with conventional mini-LED displays is critical to this work. Please include more detailed discussion and results comparison. 

7. (line 177) “The performance summary is listed in Table I.” is confusing, because Table 1 lists specifications and does not have performance related data. Could the authors clarify? Is there a table that is not included in the current manuscript? 

Author Response

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Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

After reviewing revised manuscript entitled with “A Novel Single X-wire AM mini-LED backlight unit with Motion Blur Reduction for High-Image-Quality LCD TVs”. Minor points have to revise before publication as follows.

 1. The line 11: HDR in the abstract should be typed the full English words.

2. Lines 83-85: Explanation is suggested as follows. As shown in Figure.2, each dimmer controls 4 dimming zones. Therefore, there are 128（64 channels ×2） dimming zones in maximum in vertical and 256（128 dimmers×2）dimming zones in horizontal. Therefore, one DCON with 64 strings dimmers can support 32,768 dimming zones in maximum.

3. The line 173: 85-inchUHD is revised to 85-inch Ultra High Definition (UHD).

4. Lines 187-188: Mark symbols of (a) and (b) in Figure 11. Comparison between image quality: (a) without H-scan and (b) with H-scan.

5. Several wording 2,048 zones, 9 LEDs, and 2,304 zones (H48xV48) should be revised in Table 1.

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

Thank you for the clarifications provided. It is true that the manuscript presents an impressive method that can potentially benefit the mini-LED local dimming technology. However, to ensure that this work meets the standards of a scientific journal, it is suggested to provide more scientific background and analysis. Specifically, it would be beneficial to include more detailed descriptions of key components such as the dimmers and DCON, along with relevant specifications (not only number of channels and dimming zones) and references. Additionally, a more thorough analysis of the "Adaptive addressing dimming control method" should be performed, including an examination of the frequency response of the system, and limitations of this method, among other factors.

 

Author Response

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Author Response File: Author Response.pdf

Reviewer 3 Report

I would like to thank the authors for the detailed response and discussion. The previous comments have been adequately addressed.

I have one more comment/request: In line 182, the authors mentioned the power consumption comparison between this work and the conventional mini-LED display (300W vs. 330W), but I cannot find any discussion or description of how the power is compared.

As I mentioned previously, this is one of the key results of the paper, therefore, please describe how it is measured and why it is a fair comparison. What are the parameters being controlled? You can only make such comparison when the two subjects' output is controlled. For example, it is not scientific to just claim "A uses less power than B" - The statement needs to be "to achieve the same XXX (performance parameters like brightness, etc.), A uses less power than B". 

Author Response

We appreciate all the valuable comments made by Reviewers to improve our paper. Our responses are written in blue, revisions are written in red.

Thank you very much for your suggestion. To more clearly describe the comparison results between proposed mini-LED BLU and conventional ones, we have modified the following sentence to the revised manuscript:

What’s more, the power consumption comparison is measured by the same TV under same image with proposed and conventional mini-LED BLU. The whole power consumption is reduced from 330W to 300W when using the proposed single X-wire AM mini-LED BLU. Performance summary between proposed single X-wire AM mini-LED BLU and conventional mini-LED BLU is shown on Table 1.