LG Gram Book 15 has one of the worst IPS displays in the series
Unlike the typical LG Gram laptop, the LG Gram Book is a lower-end model designed for users on tighter budgets. It cuts several corners in order to meet the attractive price point of $800 USD, but the cuts are deep enough to negatively impact the user experience especially in regards to the display. If you plan on running video or editing images often, then you'll probably want to avoid the Gram Book 15.
As shown by the comparison table below, the IPS display on the Gram Book 15 is inferior to the displays on most other budget multimedia laptops. Native refresh is limited to just 60 Hz, black-white response times are relatively slow for more noticeable ghosting, contrast is very poor at under 500:1, backlight bleeding is noticeable on our test unit, and colors are shallow even to the untrained eye. While we don't expect the budget-grade Gram Book 15 to carry the same high quality panels as found on the Gram 15, an attractive display would have helped distinguish the Gram Book 15 from competitors in the sub $1000 range.
Beyond the display, the budget LG model is long-lasting and very quiet all thanks to its efficient Core U-series CPU as detailed in our review. Nonetheless, alternatives like the Asus VivoBook S15 or Lenovo IdeaPad 5 series tend to carry superior displays for a similar price range.
| LG Gram 15U55T LG Philips LP156WFD-SPR1, IPS, 1920x1080, 15.6", 60 Hz | LG Gram SuperSlim (2023) Samsung ATNA56YX08-0, OLED, 1920x1080, 15.6", 60 Hz | Lenovo IdeaPad Slim 3 15IRH10R LEN153WUXGA, IPS, 1920x1200, 15.3", 60 Hz | HP Envy x360 15 fe1071cl CMN155D, IPS, 1920x1080, 15.6", 60 Hz | Asus VivoBook S15 K5504 Samsung SDC4180, OLED, 2880x1620, 15.6", 120 Hz | Dell Inspiron 15 Plus Dell INSPIRON LGD06A6, IPS, 1920x1080, 15.6", 60 Hz | |
|---|---|---|---|---|---|---|
| Display | 130% | 12% | 12% | 128% | 67% | |
| Display P3 Coverage (%) | 37.9 | 99.8 163% | 42.9 13% | 42.6 12% | 99.93 164% | 64.1 69% |
| sRGB Coverage (%) | 56.9 | 100 76% | 61.2 8% | 63.7 12% | 100 76% | 92.8 63% |
| AdobeRGB 1998 Coverage (%) | 39.1 | 98.09 151% | 44.4 14% | 44.1 13% | 95.52 144% | 66.2 69% |
| Response Times | 93% | 19% | 14% | 93% | 13% | |
| Response Time Grey 50% / Grey 80% * (ms) | 34 ? | 2 ? 94% | 29.1 ? 14% | 32 ? 6% | 2 ? 94% | 31.6 ? 7% |
| Response Time Black / White * (ms) | 26.6 ? | 2 ? 92% | 20.2 ? 24% | 20.9 ? 21% | 2 ? 92% | 21.6 ? 19% |
| PWM Frequency (Hz) | 240 | |||||
| PWM Amplitude * (%) | ||||||
| Screen | 125% | 40% | 50% | 513% | 24% | |
| Brightness middle (cd/m²) | 305.2 | 395 29% | 328.3 8% | 330.7 8% | 370.4 21% | 298 -2% |
| Brightness (cd/m²) | 304 | 392 29% | 313 3% | 292 -4% | 376 24% | 285 -6% |
| Brightness Distribution (%) | 86 | 97 13% | 92 7% | 77 -10% | 96 12% | 86 0% |
| Black Level * (cd/m²) | 0.72 | 0.1 86% | 0.24 67% | 0.18 75% | 0.02 97% | 0.4 44% |
| Contrast (:1) | 424 | 3950 832% | 1368 223% | 1837 333% | 18520 4268% | 745 76% |
| Colorchecker dE 2000 * | 6.78 | 2.2 68% | 5.64 17% | 5.08 25% | 1.51 78% | 3.68 46% |
| Colorchecker dE 2000 max. * | 16.91 | 4.43 74% | 19.24 -14% | 17.95 -6% | 2.89 83% | 7.39 56% |
| Colorchecker dE 2000 calibrated * | 2.73 | 4.65 -70% | 3.13 -15% | 2.73 -0% | 3.36 -23% | 2.61 4% |
| Greyscale dE 2000 * | 5.2 | 1.78 66% | 2.1 60% | 3.9 25% | 2.1 60% | 5.3 -2% |
| Gamma | 2.19 100% | 2.39 92% | 2.12 104% | 2.26 97% | 2.2 100% | 2.102 105% |
| CCT | 6197 105% | 6284 103% | 6757 96% | 6607 98% | 6536 99% | 6143 106% |
| Total Average (Program / Settings) | 116% /
122% | 24% /
31% | 25% /
36% | 245% /
371% | 35% /
32% |
* ... smaller is better
Source(s)
Add as a preferredNo comments for this article
