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Another Big Benefit of In-Cell Touch on Apple’s iPhone 5: Larger Battery Capacity

In the run-up to the iPhone 5 unveiling next month, there is a great deal of discussion about potential new features, including an A6 SoC with quad-core structure, higher clock speed CPU and GPU, larger display with in-cell touch, higher resolution camera, and advanced OS. While it is not clear which of these features will be realized, any that are will result in higher power consumption. The most obvious is the display, which is expected to be 4”, up 18% from 3.54” in the iPhone 4, while maintaining the “Retina Display” 326 ppi resolution. If the optical transmission through the display is the same (while there will likely be more layers in the iPhone 5 cell structure, the removal of the touch panel substrate should offset this), the increase in display size means that more LEDs will be needed in the backlight unit, increasing the power consumption.

The faster, quad-core CPU is also likely to consume more power. First, we assume the A6 SoCs will be manufactured by Samsung using its 32 nm High-K metal gate process, so power consumption per MHz will not be much lower than for the A5; combined with a doubling of the CPU cores, higher power consumption is likely.

Since the CPU and display account for much of the power consumption in a smartphone, any improvements in power consumption from other components or overall design are not likely to make up for these increases. What about battery performance? Polymer battery density is expected to improve from 550 Wh/l (Watt-hours per liter) in 2012 to 630 in 2013; but this is not likely to be enough to account for the additional power demand without sacrificing operating time.

The bottom line is that the battery will need to be bigger. With phone thickness and volume at a premium, Apple and other smartphone makers need all other components to be thinner to make space for a larger battery. This is where in-cell touch can bring additional benefits (first to the iPhone 5): enabling greater battery capacity. We assume that in-cell touch could result in the display module being 0.5 mm thinner, which, combined with battery density of at least 600 Wh/l, would result in an increase in battery capacity of at least 40% in the iPhone 5.

We are going to be discussing these and other issues relating to the design and performance of the iPhone 5 and other smartphones in a complimentary webinar on September 10th/11th.

  • http://www.iphone5reviews.co/2012/08/29/slimmer-iphone-5-display-could-boost-battery-capacity-40-says-analyst/ Slimmer iPhone 5 display could boost battery capacity 40%, says analyst – Your #1 Site for Iphone 5 reviews and News. – Iphone 5 Reviews

    [...] a blog post Tuesday, Lee said the thinner display gives Apple more room for a higher-capacity battery, [...]

  • http://www.whatisiphone5.com/2012/08/29/slimmer-iphone-5-display-could-boost-battery-capacity-40-says-analyst/ Slimmer iPhone 5 display could boost battery capacity 40%, says analyst | What is Iphone5

    [...] a blog post Tuesday, Lee said the thinner display gives Apple more room for a higher-capacity battery, [...]

  • torchh

    Picking up 0.5mm depth by going to an in-cell touchscreen structure is optimistic.  Film-film construction of the touchscreen can be substantially thinner than that–a couple of layers of conductively-coated 0.1mm PET film, and maybe an additional 0.1mm or less of adhesive between the two layers.  Far better would be to use slightly thinner cover glass (such as the latest version, 20 % thinner, yet stronger, of the Corning Gorilla glass) and laminate the cover glass to the display, as was apparently done with the early production runs of the original iPhone.  As it is, there is likely more than a 0.5mm air gap between the touchscreen and the display.  Customers aren’t complaining about it, but it is definitely detrimental to the optics of the overall stack, so a lamination here would be an optical improvement as well as a pickup of some additional depth for a putative battery capacity increase.

  • http://iphone4sissues.net/slimmer-iphone-5-display-could-boost-battery-capacity-40-says-analyst.html Slimmer iPhone 5 display could boost battery capacity 40%, says analyst | iphone 4S issues

    [...] of an inch.The iPhone 4S takes the tape at 9.5 millimeters, according to Apple’s website.In a blog post Tuesday, Lee said the thinner display gives Apple more room for a higher-capacity battery, [...]

  • http://iphone5casereview.com/iphone-5-2011/slimmer-iphone-5-display-could-boost-battery-capacity-40-says-analyst/ Slimmer iPhone 5 display could boost battery capacity 40%, says analyst | iPhone 5 Case Reviews

    [...] a blog post Tuesday, Lee said the thinner display gives Apple more room for a higher-capacity battery, [...]

  • http://impuls.name/archives/3024 ImPuls.Name » Ёмкость батареи нового iPhone может быть увеличена на 40%

    [...] DisplaySearch считают, что даже увеличение размеров экрана и [...]

  • Shawn Lee

    Current high end smartphone display+touch thickness is around 2.3-2.7 mm, and our analysis indicates with in-cell thickness is low as 1.9-2.0 mm. If LTE is in iPhone 5, PAs for 4G networks consume a lot of power, thinner is benefit for battery capacity. Smartphone display/touch stack will be detailed analysis in DisplaySearch upcoming smartphone report. 

  • http://www.macworld.com.au/news/analyst-slimmer-iphone-5-display-may-boost-battery-40-70441/ Analyst: Slimmer iPhone 5 display may boost battery 40% – Macworld Australia

    [...] a blog post Wednesday, Lee said the thinner display gives Apple more room for a higher-capacity battery, [...]

  • http://android1.kubuhost.com/2012/08/the-next-iphones-slimmer-in-cell-touch-display-could-allow-for-larger-capacity-battery-probably-wont/ The Next iPhone’s Slimmer In-Cell Touch Display Could Allow For Larger Capacity Battery, Probably Won’t | Blog

    [...] Lee, a Senior Analyst f&#959r DisplaySearch, &#1072n analysis firm focused &#959n th&#1077 &#1281&#1110&#1109&#1088&#406&#1072&#1091 technology [...]

  • http://uia7.com/new-iphone5-battery/ 新型iPhone(5)はバッテリー容量が40%も増量される!? | UIA7

    [...] Another Big Benefit of In-Cell Touch on Apple’s iPhone 5: Larger Battery Capacity | DisplaySearch … [...]

  • http://jailbreakjunkie.com/2012/08/31/the-next-iphones-slimmer-in-cell-touch-display-could-allow-for-larger-capacity-battery-probably-wont/ The Next iPhone’s Slimmer In-Cell Touch Display Could Allow For Larger Capacity Battery, Probably Won’t — jailbreakjunkie.com

    [...] Lee, a Senior Analyst for DisplaySearch, an analysis firm focused on the display technology industry, believes that the upcoming [...]

  • http://iphone5casereview.com/iphone-5-accessories/slimmer-iphone-5-display-may-boost-battery-40-nalyst/ Slimmer iPhone 5 display may boost battery 40%, nalyst | iPhone 5 Case Reviews

    [...] a blog post Tuesday, Lee said the thinner display gives Apple more room for a higher-capacity battery, [...]

  • http://www.techsliver.com/the-latest-leaked-images-show-an-a6-cpu-front-panel-and-the-complete-screen-of-the-upcoming-iphone/ The Latest Leaked Images Show An A6 CPU, Front Panel And The Complete Screen Of The Upcoming iPhone | TechSliver

    [...] screen larger. The Home button appears to be slightly smaller in size.Last, a senior analyst for DisplaySearch, a firm that focuses on the display technology industry, Shawn Lee, believes that the next [...]

  • http://www.manandvan.uk.net/ Man Van

    Two things that Galaxy S III has that haven’t been mentioned are the ability of the phone to stay on while you’re looking at it and the “wave of the hand” to get the attendant’s attention. Both of these features are a real PLUS for me and could sway my choice this next buying season. Being a FanBoy, I’m loyal to Apple, but I’m also practical and what makes my life work better and easier is a real PLUS.

  • http://todoiphone.net/rumores/el-nuevo-iphone-5-con-bateria-40-por-ciento-mas-grande-que-la-del-4s/ Rumores | El nuevo iPhone 5 con bateria 40 por ciento mas grande que la del 4S | Todo iPhone – Quizás la mejor comunidad en Español para el iPhone, iPod Touch y iPad con Revisión de Aplicaciones, Noticias, Tutoriales, Configuraciones, Juegos y Descarga

    [...] Vía: Analyst Blog Si te ha gustado este artículo, también puedes seguirnos en Twitter o en nuestra página en Facebook para mantenerte actualizado sobre las últimas novedades de Apple y sus dispositivos móviles. Etiquetas: Apple, iPhone, Rumores [...]

  • http://anthonycampanella.com/2012/09/05/the-iphone-5-will-have-a-killer-battery-aapl/ The iPhone 5 Will Have A Killer Battery (AAPL) | Don't Call Me Tony

    [...] We should see significantly improved battery life in the next iPhone, reports Shawn Lee of DisplaySearch Blog. [...]

  • sebarkh

    “wave of the hand”
    Some new features my phone has and I dont know about…

  • Shawn Lee

    In addition to in-cell touch, probably we will see Apple replace other materials to release more room for larger battery capacity. Most of brands face challenges to control power consumption in smartphoen with LTE.

  • http://iphone5.blogarch.com/?p=64 A skinny iPhone 5 could boost battery life | iphone 5

    [...] a blog post, Lee pronounced a thinner arrangement gives Apple some-more room for a higher-capacity battery, [...]

  • http://geekenligne.com/BLOG/2012/09/09/a-skinny-iphone-5-could-boost-battery-life/ A skinny iPhone 5 could boost battery life | Geeklin

    [...] a blog post, Lee said the thinner display gives Apple more room for a higher-capacity battery, necessary to [...]

  • http://www.pentelikonews.gr/video/27896/a-skinny-iphone-5-could-boost-battery-life/ » A skinny iPhone 5 could boost battery life – Penteliko News

    [...] a blog post, Lee pronounced a thinner arrangement gives Apple some-more room for a higher-capacity battery, [...]

  • http://apple.blogarch.com/?p=162 A skinny iPhone 5 could boost battery life | Apple Product News

    [...] a blog post, Lee pronounced a thinner arrangement gives Apple some-more room for a higher-capacity battery, [...]

  • http://theoryreport.com/breaking-news/a-skinny-iphone-5-could-boost-battery-life.html A skinny iPhone 5 could boost battery life « Breaking News « Theory Report

    [...] a blog post, Lee pronounced a thinner arrangement gives Apple some-more room for a higher-capacity battery, [...]

  • http://iphoneunlockey.net/a-skinny-iphone-5-could-boost-battery-life A skinny iPhone 5 could boost battery life | iPhoneUnlocKey.Net – unlock iphone

    [...] a blog post, Lee said the thinner display gives Apple more room for a higher-capacity battery, necessary to [...]

  • http://tuxdoc.com/a-skinny-iphone-5-could-boost-battery-life/ A skinny iPhone 5 could boost battery life | Tux Doc

    [...] a blog post, Lee said the thinner display gives Apple more room for a higher-capacity battery, necessary to [...]

  • http://iphone4sissues.net/apple-iphone-5-ready-for-disappointment.html Apple iPhone 5: Ready for Disappointment | iphone 4S issues

    [...] figure, maybe, 8mm, 8.1mm.And the space savings in-cell creates will mean more battery life, perhaps more than 40 percent more juice. This may not provide much more than 4/4S’s 8-hour talk time since LTE tends to be a [...]

  • http://pbmn.info/a-skinny-iphone-5-could-boost-battery-life.html A skinny iPhone 5 could boost battery life | 电池的未来

    [...] a blog post, Lee said the thinner display gives Apple more room for a higher-capacity battery, necessary to [...]

  • http://www.displaysearchblog.com/2012/10/apple-iphone-5-raises-the-bar-for-smartphone-design/ Apple iPhone 5 Raises the Bar for Smartphone Design | DisplaySearch Blog

    [...] the iPhone 5 launch, we forecast that the reduction in display thickness from in-cell touch would be used to for a larger battery, [...]

  • http://ipadia.it/nuovo-iphone-con-batteria-del-40-pi-grande-delliphone-4s/ Nuovo iPhone con batteria del 40% più grande dell’iPhone 4S? – macitynet.it

    [...] di un telefono seguendo le attese del pubblico senza pagare dazio nell’autonomia.Fonte: Analyst BlogPrecedente1 di 1SuccessivoiPhone 4STweet Pin ItNotizie correlate VaVeliero True Carbon: le cover in [...]