# Backlight Sheet for HP laptops, model L77991-005, compatible with HP displays

**URL:** https://aio.lv/en/product--hp-battery-3c-56wh-485ah-li--11829405
**Data updated:** 2026-03-09 14:38 (EET)
**Category:** Portable Device Batteries
**Manufacturer:** HP
**Manufacturer code:** Battery 3C 56Wh 4.85Ah LI
**EAN:** 5704174330370
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 118.49 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 97.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-battery-3c-56wh-485ah-li--11829405

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.08.2026 | free |
| Pickup points | 06.08.2026 | 1.89 EUR |
| Courier delivery to door | 06.08.2026 | 4.99 EUR |

## Summary description

Backlight Sheet L77991-005 for HP laptops. A replacement internal backlight diffuser panel compatible with HP display assemblies, designed to distribute LED/LCD illumination evenly across the screen. Intended for repair or refurbishment of laptop displays to restore uniform brightness and reduce hotspots. Use with matching HP display modules and installation tools.

## Long description

Backlight Sheet L77991-005 for HP laptops is an internal diffuser panel designed to work with compatible HP display assemblies. It restores even distribution of LED/LCD backlighting across the screen surface, reducing visible hotspots and improving uniformity of brightness after display repair or refurbishment. The part is intended for use during display module replacement or internal screen maintenance where the original diffuser layer is damaged or degraded.
Advantages
The backlight sheet provides an even light distribution layer that helps achieve consistent screen illumination and reduces localized bright or dark areas. As a component compatible with HP displays, it is intended to fit into matching display assemblies and to be used with appropriate installation tools and procedures. Using a correct diffuser panel contributes to restoring the visual performance of the display without altering the display electronics.
Suitable for
Repairing or refurbishing HP laptop display assemblies
Replacing a damaged or discolored internal diffuser layer
Improving backlight uniformity after LED/LCD module replacement
Key specifications
Product type: Backlight diffuser sheet for laptop displays
Compatibility: Designed for use with compatible HP display assemblies
Quantity: 1 piece
How to use
Use this backlight sheet as a replacement internal layer during display disassembly and reassembly procedures. Follow the service manual or repair guide for the specific HP laptop model to access the display module, remove the damaged diffuser layer, and install the replacement sheet in the correct orientation. Ensure clean handling with lint-free gloves and appropriate tools to avoid contamination or damage to the diffuser surface and adjacent display components.
Usage recommendations
Install the sheet only with compatible HP display modules and follow manufacturer service instructions. Verify display alignment and test backlight performance before final reassembly. If unfamiliar with laptop display repair, consider professional installation to avoid damage to the display or other laptop components.

## Specifications

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |
| Harmonized System (HS) code | 84732990 |

### Battery

| Feature | Value |
|---|---|
| Number of battery cells | 3 |
| Battery capacity | 56 Wh |

### Technical details

| Feature | Value |
|---|---|
| Type | Backlight Sheet |
| Brand compatibility | HP |

## FAQ

### How much does the HP Backlight Sheet L77991-005 cost, and is it available for purchase?

The price is 118.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 308 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 03.08.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can HP Backlight Sheet L77991-005 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HP products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HP service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11829405/67284969_large.webp