# Build Resolution Requirements for webOS OTT React App

**URL:** <https://forum.webosose.org/t/build-resolution-requirements-for-webos-ott-react-app/5245>\
**Category:** UI/UX\
**Created:** [May 20, 2025, 11:54am UTC](https://forum.webosose.org/t/build-resolution-requirements-for-webos-ott-react-app/5245 "2025-05-20T11:54:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Elam\_Parithi\_U](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.webosose.org/elam_parithi_u/32/1564_2.png) [@Elam\_Parithi\_U](https://forum.webosose.org/u/Elam_Parithi_U)\
**Post date:** [May 20, 2025, 11:54am UTC](https://forum.webosose.org/t/build-resolution-requirements-for-webos-ott-react-app/5245/1 "2025-05-20T11:54:55Z")

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Hello everyone,

I’m working on an OTT application using React for LG webOS and have a question about supported screen resolutions:

- I’ve configured `appinfo.json` with a resolution of **1920×1080**.
- When I install this build on FHD (1920×1080), UHD (3840×2160), and HD (1280×720) TVs, the app always renders at 1920×1080 and scales accordingly—UI elements remain consistent across devices.
- If I change the `appinfo.json` resolution to **1280×720** , the app renders at that size instead.

My question is: **For final submission to the Seller Lounge, do I need to provide two separate builds—one targeting 1920×1080 and another for 1280×720—or is a single 1920×1080 build sufficient to cover all supported TV resolutions?**

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**Author:** ![NERGI](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.webosose.org/nergi/32/364_2.png) [@NERGI](https://forum.webosose.org/u/NERGI)\
**Post date:** [May 21, 2025, 12:06am UTC](https://forum.webosose.org/t/build-resolution-requirements-for-webos-ott-react-app/5245/2 "2025-05-21T00:06:38Z")

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Hi @Elam_Parithi_U, welcome to the Forum!

Unfortunately, this forum is only for webOS Open Source Edition.  
For the Seller Lounge and webOS TV, please visit the [TV Forum](https://forum.webostv.developer.lge.com/).

Thanks!

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**Author:** ![karum](https://avatars.discourse-cdn.com/v4/letter/k/d07c76/32.png) [@karum](https://forum.webosose.org/u/karum)\
**Post date:** [May 24, 2025, 2:46pm UTC](https://forum.webosose.org/t/build-resolution-requirements-for-webos-ott-react-app/5245/3 "2025-05-24T14:46:14Z")

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Hey Elam, I’ve run into a similar situation before. From what I’ve seen, submitting a single 1920×1080 build is usually fine since webOS TVs handle scaling internally. As long as your UI elements scale cleanly and stay readable across different resolutions (HD, FHD, UHD), you should be good. But worth double-checking in the TV Forum just to be safe.

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**Author:** ![Elam\_Parithi\_U](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.webosose.org/elam_parithi_u/32/1564_2.png) [@Elam\_Parithi\_U](https://forum.webosose.org/u/Elam_Parithi_U)\
**Post date:** [May 26, 2025, 5:30am UTC](https://forum.webosose.org/t/build-resolution-requirements-for-webos-ott-react-app/5245/4 "2025-05-26T05:30:57Z")

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Thank you karum. In the TV forum they mentioned like we need to submit two ipk files and am in some other doubts also

1. Do I need separate Figma (or other design) files for both 1920×1080 (Full HD) and 1280×720 (HD), or can I maintain a single design source and rely on responsive styling?
2. If I stick to one codebase, what’s the best way to implement dynamic styling so that UI components—fonts, icons, spacing, etc.—scale correctly at both 1080p and 720p?
3. I understand that LG Seller Lounge requires separate `.ipk` packages for each resolution. When I submit the 1280×720 build, I notice the visual quality isn’t as sharp as the 1920×1080 version. Is this drop in quality due to the TV’s internal scaling behavior, or is there something in my styling/assets that I need to adjust?