DETAILED ACTION
Priority
1. Receipt is acknowledged of papers submitted under 35 U.S.C. 119 (a) — (d), which papers have been placed of record in the file. Oath/Declaration
Oath/Declaration
2. Oath and declaration filed on 2/6/2024 is accepted.
Information Disclosure Statement
3. The prior art documents submitted by application in the Information Disclosure Statement filed on 3/6/2024 have all been considered and made of record ( note the attached copy of form PTO – 1449).
Claim Rejections - 35 USC § 103
4. In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status.
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.
Claim(s) 1-4 and 9 /are rejected under 35 U.S.C. 103 as being unpatentable over Lum et al (2021/0364861 A1)
Regarding claim 1, Lum et al discloses ( refer to figures 1-4 and figure 19) a head-mounted display ( electronic device 10 and head mounted display 14, paragraph 0042), comprising: a case body(12) ; a heat source (LED 38 and driver ICS 82 generate heat , paragraph 0112) ; and a thermally conductive material layer (164) (paragraph 0113) , wherein the heat source and the thermally conductive material layer are disposed in the case body, and the heat source is connected to the case body through the thermally conductive material layer (164) , wherein
the case body (12) has a first surface connected to the thermally conductive material layer (164) and an opposite second surface; the thermally conductive material layer has a third surface connected to the heat source (LED 38 and driver ICS 82 generate heat , paragraph 0112) and an opposite fourth surface; and
Lum et al discloses all of the claimed limitations except a first distance is greater than a second distance, wherein the first distance is a distance between the third surface and the second surface adjacent to the heat source, and the second distance is a distance between the third surface and the second surface away from the heat source.
Lum et al discloses a first distance is greater than a second distance, wherein the first distance is a distance between the third surface and the second surface adjacent to the heat source, and the second distance is a distance between the third surface and the second surface away from the heat source (figure 23 different distances adjacent to the LEDS , paragraph 0135).
It would have been obvious to one of ordinary skill in the art at the time of invention was made to provide teaching a first distance is greater than a second distance, wherein the first distance is a distance between the third surface and the second surface adjacent to the heat source, and the second distance is a distance between the third surface and the second surface away from the heat source in to the Lum et al a head mounted display to manage thermal performance of the backlight as taught by Lum (paragraph 0011).
Regarding claim 2, Lum et al wherein a length of the thermally conductive material layer (164) is greater than or equal to a length of the heat source(LED 38 and driver ICS 82 generate heat , paragraph 0112), and a width of the thermally conductive material layer is greater than or equal to a width of the heat source.
Regarding claim 3, Lum et al further comprising a first thermal interface
material layer disposed between the thermally conductive material layer (164) and the heat source(LED 38 and driver ICS 82 generate heat , paragraph 0112).
Regarding claim 4, Lum et al further comprising a second thermal interface material layer disposed between the thermally conductive material layer and the case body.
Regarding claim 9, Lum et al discloses wherein a thickness of the thermally conductive material layer (176/164) (paragraph 0127) adjacent to the heat source is greater than a thickness of the thermally conductive material layer away from the heat source (paragraph 0086).
Allowable Subject Matter
5. Claims 5-8 and 10 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims.
6. The following is a statement of reasons for the indication of allowable subject matter wherein a thickness of the case body at a first end is greater than a thickness at a second end, wherein the first end is an end of the case body adjacent to the heat source, and the second end is an end of the case body away from the heat source and wherein the head-mounted display satisfies the following conditional formula: 1 ≥ Rthick/(Rthin+Rth) > Rthin/(Rthin+Rth), wherein Rthick is a thermal resistance of the case body at the first end, Rhin is a thermal resistance of the case body at the second end, and Rth is a thermal resistance of the thermally conductive material layer in a length direction and the thermally conductive material layer includes a plurality of sub-thermally conductive material layers, wherein a length of the sub-thermally conductive material layer adjacent to the heat source is greater than or equal to a length of the sub-thermally conductive material layer away from the heat source.
Conclusion
7. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MOHAMMED A HASAN whose telephone number is (571)272-2331. The examiner can normally be reached M-TH 6 AM -4 PM.
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/MOHAMMED A HASAN/Primary Examiner, Art Unit 2872 1/23/2025