Patent Application 18783567 - BACKLIGHT MODULE AND DISPLAY DEVICE - Rejection

Patent Application 18783567 - BACKLIGHT MODULE AND DISPLAY DEVICE

Title: BACKLIGHT MODULE AND DISPLAY DEVICE

Application Information

• Invention Title: BACKLIGHT MODULE AND DISPLAY DEVICE
• Application Number: 18783567
• Submission Date: 2025-04-08T00:00:00.000Z
• Effective Filing Date: 2024-07-25T00:00:00.000Z
• Filing Date: 2024-07-25T00:00:00.000Z
• Examiner Employee Number: 83781
• Art Unit: 2875
• Tech Center: 2800

Rejection Summary

• 102 Rejections: 0
• 103 Rejections: 1

Cited Patents

The following patents were cited in the rejection:

• US 0106169🔗

Office Action Text

    DETAILED ACTION
Notice of Pre-AIA  or AIA  Status
The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA .
Information Disclosure Statement
The information disclosure statement (IDS) submitted on 01/22/2025 has been considered by the examiner.
Claim Rejections - 35 USC § 103
The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action:
A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made.

Claims 1-18 are rejected under 35 U.S.C. 103 as being unpatentable over Peng et al. (US2023/0106169 A1) (Peng, hereafter)is the 371 for the PCT Filed  12-28-2020 and is being used as the English translation of that pct  application in view of Park et al. (US2006146530 A1) (Park, hereafter).
              Regarding claim 1 , Peng discloses light-emitting module, light emitting substrate and display module (figures 1-11and  π10-π107)and comprising: a light-emitting substrate, comprising a transparent substrate (1)and a plurality of light-emitting unit(3)s, wherein the plurality of light-emitting units (3) are arranged in an array on a side of the transparent substrate (1); an encapsulation layer (4), disposed on a side of the plurality of light-emitting units (3) away from the transparent substrate (1), wherein an orthographic projection of the encapsulation layer on the transparent substrate at least covers an orthographic projection of the plurality of light-emitting units on the transparent substrate (as can be seen from Figure 1); and a first reflective layer (5), disposed on a side of the encapsulation layer (4)  away from the transparent substrate (1), wherein an orthographic projection of the first reflective layer on the transparent substrate at least covers the orthographic projection of the plurality of light-emitting units on the transparent substrate(as can be seen from figure 1).Peng fails to explicitly disclose wherein the first reflective layer is a Lambertian body.
	Park discloses a backlight apparatus comprising LEDs( 120) and the PCBs (130), and has a reflective sheet (112) placed in the bottom. The side walls (114) are preferably made of a reflective sheet. The reflective sheet (112) may be preferably made of a Lambertian sheet or have a Lambertian surface formed in its upper surface
It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the backlight module of Peng as disclosed by Park wherein the first reflective layer is a Lambertian body in order to prevent wide spreading of light and thus to enhance brightness.
Regarding claims 2-3 and 9-15, Peng  further discloses that: a plurality of microstructures are provided on the side of the first reflective layer 5 close to the light-emitting element 3, and the first reflective layer 5 comprises a plurality of air pore structures 6. The driving circuit layer 2 comprises a plurality of first wires 2011 and second wires 2012 which are arranged in a crossed manner, and a first insulating layer 203 arranged between the first wires 2011 and the second wires 2012, the first wires 2011 and the second wires 2012 forming at least one light-transmitting area 202. By setting the wiring density of the first wires 2011 and the second wires 2012, the proportion of the light-transmitting region 202 in different regions of the driving circuit layer 2 is controlled. The driving circuit layer 2 further comprises a third wire 2013, the third wire 2013 being connected to the light-emitting element and used for driving the light emitting element to emit light. The wires in the driving circuit layer 2 are made of a reflective material. The driving circuit layer 2 further comprises a second reflective layer 204; a second insulating layer 206 provided between the second reflective layer 204 and the first wires 2011; a third reflective layer 207; a third insulating layer 208 provided between the third reflective layer 207 and the second wires 2012; and a planarization layer provided on the side of the third insulating layer 208 away from the second wires 2012. The insulating layer may be an ITO layer.
It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the backlight module of Peng as disclosed by Peng to make the appropriate improvements the motivation being a high uniformity effect of a light-emitting surface, and backlight as a whole.
Regarding claims 4-8 and 17,  the limitations, wherein the encapsulation layer wraps a color conversion particle of at least one color(Claim 4); wherein the encapsulation layer comprises a plurality of sub-layers, the plurality of sub-layers are respectively a first barrier layer, a color conversion layer and a second barrier layer, the first barrier layer is arranged on a side of the plurality of light-emitting units away from the transparent substrate, the color conversion layer is arranged on a side of the first barrier layer away from the transparent substrate, the second barrier layer is arranged on a side of the color conversion layer away from the transparent substrate, and the color conversion layer contains a color conversion particle of at least one color (claim 5); of sub-parts, each of the sub-parts wraps one of the light-emitting units, and each of the sub-parts wraps a color conversion particle of at least one color (claim 6);the first reflective layer comprises a plurality of first reflective parts, and each of the first reflective parts wraps one of the sub-parts (claim 7); wherein a material of the color conversion particle is nitride phosphor or fluoride phosphor (claim 8);wherein : a polarizing layer, arranged on another side of the transparent substrate away from the light-emitting unit; a diffusion layer, arranged on a side of the polarizing layer away from the transparent substrate (claim 17) do not appear to contain any additional features which define more than slight constructional changes which come within the scope of the customary (design) practice followed by persons skilled in the art, especially as the advantages thus achieved can be readily contemplated in advance. Alternatively, these limitations are not deemed patentable since the applicant’s disclosure fails to show such limitations to solve any problems or to yield any unobvious advantage that is not within the scope of the teachings applied. Therefore, such limitations would be a matter of design alternative.
It would have been obvious to one of ordinary skill in the art before the effective filing date to modify the backlight module of Peng as disclosed above in order to further optimize the backlight and since design alternative requires routine skill.
Regarding claim 16,  Peng further discloses wherein the plurality of light-emitting units are arranged into a plurality of mutually interlaced equilateral triangle light-emitting groups, each of the equilateral triangle light-emitting groups comprises three light-emitting units, the three light-emitting units are respectively arranged at three vertices of the equilateral triangle light-emitting group, and two adjacent equilateral triangle light-emitting groups share two light-emitting units (π96, π101).
Regarding claim 18,  Peng further disclose a display device, comprising the backlight module according to claim 1 (see rejection claim 1).
Conclusion
The prior art made of record and not relied upon is considered pertinent to applicant's disclosure can be found in the 892 and below:
US 20240295786 A1-Same Assignee-Display module and Display Apparatus- no double patenting issues
Any inquiry concerning this communication or earlier communications from the examiner should be directed to TRACIE Y GREEN whose telephone number is (571)270-3104. The examiner can normally be reached Mon-Thursday, 10am-8pm.
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If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, James R Greece can be reached on (571)272-3711. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300.
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TRACIE Y. GREEN
Primary Examiner
Art Unit 2875



/TRACIE Y GREEN/Primary Examiner, Art Unit 2875